KR20120088967A - Pipe assembly - Google Patents

Abstract

PURPOSE: A pipe assembly is provided to fix a pip to a block without shaking by adding an O-shaped bead. CONSTITUTION: A pipe assembly comprises a block(10) and a pipe(20). The block comprises a coupling hole(13). The coupling hole penetrates the main surfaces facing each other. The pipe passes through the coupling hole of the block. The other side of the pipe is bent into a L-shape, and connected to the block. A joint(23) is formed on an outer surface of the pipe. An O-shaped bead(24) is formed on the outer surface of the joint to prevent the pipe from becoming separated.

Description

Pipe assembly

The present invention relates to a pipe assembly, and more particularly, to a pipe assembly in which the refrigerant pipe is bent so as to prevent shaking in the vertical direction and to the block coupled thereto.

As the technology of today's vehicles develops, so does the technology of refrigerant piping. Refrigerant piping is an indispensable element for cooling that is indispensable to automobiles, and the structure and layout of the refrigerant piping are core technologies. The structure of the refrigerant pipe consists of a combination of refrigerant pipes and blocks for connecting and fixing the refrigerant pipes. The block may also be referred to as a flange or a bracket, and a coupling hole may be formed through and coupled to the refrigerant pipe through the coupling hole.

And as the technology of automobiles increases, facilities are increasing day by day, and much effort is made because all necessary devices must be installed in a limited space such as an engine room to accommodate them. In particular, the refrigerant pipes are bent at various angles to be connected to other refrigerant pipes, and depending on the height at which they are bent, space for installation of other devices can be freed up or space for new equipment can be secured.

In addition, when the vibration and impact of the refrigerant pipe and the block continues for a long time as the driving of the vehicle, the pipe is shaken up, down, left and right, and damage occurs at the connection part of the refrigerant pipe, causing leakage.

Therefore, as a countermeasure, an orbit is formed at a lower end of the refrigerant pipe combined with the block, and then pressed to one surface of the block to fix the refrigerant pipe to the block. Here, the bead is formed in an annular shape by pressing the outer peripheral surface of the refrigerant pipe, and also has a role of preventing the pipe from being separated by having an outer diameter larger than the coupling hole of the block. However, as the vibrations and shocks continue to the pipes and blocks, the bond between the orbits and the blocks is weakened, causing the pipes to shake up, down, left and right.

Therefore, the refrigerant pipe is fixed to the block without shaking and a coupling configuration between the refrigerant pipe and the block is necessary to secure an installation space of the device.

Accordingly, an object of the present invention is to provide a pipe assembly comprising a block for fixing a minimum bending height of the refrigerant pipe and preventing the refrigerant pipe from shaking up, down, left, and right.

In order to achieve the object as described above, the present invention, the block is provided with a coupling hole formed through the opposite main surface and one side penetrates the coupling hole of the block, the other side is bent in the L-shape, It includes a pipe to be coupled, the coupling portion is provided on the outer peripheral surface of the pipe coupled to the coupling hole, the lower outer peripheral surface of the coupling portion in contact with one of the two main surfaces of the block of the block to prevent the separation of the pipe A fixed O-BEAD is formed, and the inner circumferential surface of the coupling hole of the block is formed in the circumferential direction so as to correspond to the coupling portion of the pipe so as to prevent shaking from side to side of the pipe. The engaging portion is characterized in that the projection is formed to protrude in the circumferential direction.

The concave-convex portion is characterized by consisting of a projection coupled between the groove corresponding to the shape of the projection and the projection.

According to the present invention, a pipe that is extremely bent by the uneven portion of the block and the protrusion of the pipe can be fixed to the block without shaking from side to side.

In addition, according to the present invention, by adding an orbit to the pipe, the pipe can be fixed to the block more up and down without shaking.

1 is a perspective view of the pipe assembly according to the first embodiment of the present invention.
FIG. 2 is a perspective view illustrating the pipe and the block of FIG. 1, respectively. FIG.
FIG. 3 is a cross-sectional perspective view of FIG. 1 cut vertically.
4 is a cross-sectional perspective view taken along line AA ′ of FIG. 1.
5 is a perspective view of the combination of the pipe assembly according to the second embodiment of the present invention.
6 is a perspective view illustrating the pipe and the block of FIG. 5, respectively.
FIG. 7 is a sectional perspective view of FIG. 5 cut vertically; FIG.
8 is a cross-sectional perspective view taken along line BB ′ of FIG. 5.
9 is a perspective view of the pipe assembly according to the third embodiment of the present invention.
10 is a perspective view of the pipe and the block of FIG.
FIG. 11 is a sectional perspective view of FIG. 9 cut vertically;
12 is a cross-sectional perspective view of a pipe assembly for receiving the orbits formed in the pipe of FIG.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this case, the same components in the accompanying drawings should be noted that the same reference numerals as possible. And a detailed description of known functions and configurations that can blur the gist of the present invention will be omitted.

First embodiment

1 is a perspective view of a pipe assembly according to a first embodiment of the present invention, Figure 2 is a perspective view showing a pipe and a block of Figure 1, Figure 3 is a cross-sectional perspective view showing a vertical cut of Figure 1, 4 is a cross-sectional perspective view taken along line AA ′ of FIG. 1.

As shown in Figures 1 to 4, the pipe assembly 100 according to the first embodiment of the present invention consists of a block 10 and a pipe 20.

The block 10 is provided with a coupling hole 13 formed through both main surfaces 11 and 12 facing each other in a substantially cylindrical shape, and is coupled to the pipe 20. And the block 10 is provided with a bolt hole 19 formed through the two main surfaces (11, 12) near the coupling hole 13, it can be coupled to another block or air conditioner member using a fastening member such as a bolt. have.

Pipe 20 is hollow to allow fluid such as refrigerant to flow. In addition, the pipe 20 has one side 21 penetrated through the coupling hole 13 of the block 10 and the other side 22 is bent in an L shape to be coupled to the block 10.

Referring to FIG. 2, a coupling portion 23 is provided on an outer circumferential surface of the pipe 20 coupled to the coupling hole 13 of the block 10. And to prevent the separation of the pipe 20, the orbit 24 is formed on the outer peripheral surface of the lower end of the coupling portion 23 of the pipe 20.

The orbit 24 is formed by vertically compressing the outer peripheral surface of the lower end of the coupling portion 23 toward one surface 12 of both main surfaces, and is fixed in contact with one surface 12 of both main surfaces of the block 10.

The pipe 20 is supported by a part of the other side 22, which is bent in an L shape, in contact with the other surface 11 of the two main surfaces of the block 10.

The bending is here formed using micro bending techniques. That is, referring to FIG. 3, the bending height L, which is a vertical distance between one surface 12 of the two main surfaces of the block 10 and the upper end of the L-shaped bent portion of the pipe 20, is bent to minimize the same. Micro-bending not only saves space in refrigerant piping, but also reduces interference with other products, enabling a wide variety of product designs in limited space in cars.

 Thus, the pipe 20 can be fixed to the block 10 up and down without shaking by the micro bending and the bead 24. That is, as the pipe 20 is in contact with the other surface 11 of the two main surfaces of the block 10 by micro bending, the orbit 24 is fixed on one surface 12 of the two main surfaces of the block 10. 20) can be fixed without shaking up and down.

The block 10 and the pipe 20 may be made of steel or aluminum to have a strong durability.

On the other hand, the other side 22 of the pipe 20 is connected to the other pipe, the end is usually connected to the high pressure hose can be mutually coupled to the swaging type. In some cases, it may be bent several times.

And one side 21 of the pipe 20 may be deformed into the shape of the expansion pipe or shaft tube by the end forming so that the end thereof is coupled to another pipe coupled to the other block, as described above.

2 to 4, the inner circumferential surface of the coupling hole 13 of the block 10 is correspondingly coupled to the coupling portion 23 of the pipe 20 so that the shaking or rotation of the pipe 20 is prevented. Uneven portions are formed in the circumferential direction. The protrusions 25 protrude in the circumferential direction on the coupling part 23 of the pipe 20. The protrusion 25 is formed by a punch (not shown) that enters the pipe 20 and presses it to the shape of the protrusion 25 from the inner surface to the outer surface. In addition, the cross-sectional shape of the protrusion 25 may be various shapes such as a semicircle shape, a square shape, a trapezoidal shape, and a triangular shape.

The uneven portion is a shape formed on the inner circumferential surface of the coupling hole 13 of the block 10, it may be made of a protrusion 15b coupled between the groove 15a and the protrusion 25 corresponding to the shape of the protrusion 25. have.

The recess 15a is recessed and recessed from the inner circumferential surface of the coupling hole 13 into the block 10 so as to be fit with the protrusion 25. In addition, the recess 15a preferably has a shape corresponding to the shape of the protrusion 25 and is preferably formed in accordance with the number of the protrusions 25.

The protrusion 15b protrudes convexly from the inner circumferential surface between the grooves 15a of the coupling hole 13 to be correspondingly coupled between the protrusions 25 of the pipe 20. In addition, the protrusions 15b preferably have a shape corresponding to the outer circumferential surface of the pipe 20 between the protrusions 25 and are preferably coupled between the protrusions 25, respectively.

Accordingly, the groove 15a is coupled to the protrusion 25 of the pipe 20, and the protrusion 15b is coupled to the outer circumferential surface of the pipe 20 between the protrusions 25, thereby fixing the pipe 20 without shaking. It becomes possible.

Second Embodiment

FIG. 5 is a perspective view of a pipe assembly according to a second embodiment of the present invention. FIG. 6 is a perspective view illustrating a pipe and a block of FIG. 5, and FIG. 7 is a cross-sectional perspective view of FIG. 8 is a cross-sectional perspective view taken along line BB ′ of FIG. 5.

5 to 8, the pipe assembly 200 according to the second embodiment of the present invention includes a block 110 and a pipe 20.

In the pipe assembly 200 of the second embodiment of the present invention, the pipe 20 is the same as the first embodiment, and the block 110 has a structure different from that of the uneven portion of the block 10 of the first embodiment.

That is, the uneven portion of the block 110 of the second embodiment consists of a projection 16a coupled between the protrusions 25 of the pipe 20 to the block 110 and a long groove 16b formed between the projection 16a. .

The protrusions 16a protrude convexly from the inner circumferential surface of the coupling hole 13 of the block 110 so as to correspond to the protrusions 25. In addition, the cross-sectional shape of the protrusion 16 may be various shapes such as square shape, trapezoidal shape, and triangular shape.

And the long groove (16b) is formed between the projections (16a), it is formed recessed into the interior of the block 110 so as to accommodate two or more projections 25 of the pipe 20 at the same time.

Accordingly, the protrusion 16a is coupled to the outer circumferential surface of the pipe 20 between the protrusions 25, and the long groove 16b can fix the pipe 20 without shaking by receiving two or more protrusions 25. .

Although not shown, the blocks 10 and 110 of the first and second embodiments are coupled to the pipe 20 in the vertical direction through the coupling holes 13, but the blocks 10 and 110 may sandwich the pipe 20 sideways. Sides of the blocks 10 and 110 may be partially cut open toward the coupling hole 13 to be opened. The concave-convex portion may be applied in the same manner as described above, and may be coupled to the protrusion 25 of the pipe 20 in the lateral direction.

Third embodiment

FIG. 9 is a perspective view illustrating a pipe assembly according to a third embodiment of the present invention. FIG. 10 is a perspective view illustrating a pipe and a block of FIG. 9, and FIG. 11 is a cross-sectional perspective view of FIG. Is a cross-sectional perspective view of a pipe assembly for receiving the orbits formed in the pipe of FIG.

9 to 11, the pipe assembly 300 according to the third embodiment of the present invention is composed of a block 10 and a pipe 120.

In the third embodiment of the present invention, the pipe 120 is further formed with an orbit 27 on the outer peripheral surface of the upper end of the coupling portion (23).

The orbit 27 is formed by vertically compressing the upper outer circumferential surface of the coupling portion 23 toward the other surface 11 of the two main surfaces, and is fixed in contact with the other surface 11 of the two main surfaces of the block 10. The orbit 27 may not only be more firmly fixed but also more prevented from shaking up and down so that the pipe 20 is prevented from swinging left and right, that is, rotation.

10 and 11, the block 10 coupled to the pipe 120 according to the third embodiment of the present invention is the block 10 of the first embodiment, but the block 110 of the second embodiment is Can be applied.

Referring to FIG. 12, circumferentially seats around the top and bottom of the coupling hole 13 of the block 10 so that the orbits 24 and 27 at the top and bottom of the coupling part 23 of the pipe 120 are accommodated. Grooves 17 and 18 may be further formed. The mounting groove 17 of the upper end of the coupling hole 13 accommodates the orbit 27 of the upper end of the coupling part 23, and as shown in FIG. 3, the bending distance L of the pipe 120 may be minimized. And the mounting groove (18) at the bottom of the coupling hole (13) accommodates the orbit (24) at the bottom of the coupling portion 23, reducing the overall length of the pipe 120 and helps to utilize the space of the pipe assembly 100. Can give

In addition, although the seating grooves 17 and 18 coupled to the orbits 24 and 27 of the pipe 120 are formed in the block 10 of the first embodiment, the seating grooves 17 and 18 are also the blocks of the second embodiment ( 110 may be formed.

Although the above-described embodiments of the present invention have been described above, the present invention is not necessarily limited thereto, and modifications and variations may be made without departing from the scope of the technical idea of the present invention.

Description of the Related Art
10,110 block 13: mating hole
17,18: seating groove 19: bolt hole
20,120 pipe 23 coupling part
25: protrusion 100: pipe assembly

Claims (7)

A block having coupling holes formed through opposing main surfaces; And
It includes; one side penetrates the coupling hole of the block, the other side is bent in the L-shape, the pipe is coupled to the block;
A coupling portion is provided on the outer circumferential surface of the pipe coupled to the coupling hole, and the orbit is fixed to the outer circumferential surface of the block in contact with one surface of both main surfaces of the block so as to prevent separation of the pipe. ) Is formed,
The inner circumferential surface of the coupling hole of the block is formed with an uneven portion in the circumferential direction so as to correspond to the coupling portion of the pipe so as to prevent the shaking from the left and right of the pipe. Characterized in that the pipe assembly. The method of claim 1,
The pipe is a pipe assembly, characterized in that the part of the other side bent in the L-shape is supported in contact with the other surface of the two main surfaces of the block. The method of claim 1,
The concave-convex portion is a pipe assembly, characterized in that consisting of a projection coupled between the groove corresponding to the shape of the projection and the projection. The method of claim 1,
The concave-convex portion is formed between the protrusion and the protrusion coupled between the protrusions of the pipe, pipe assembly, characterized in that consisting of a long groove for receiving two or more protrusions of the pipe. The method of claim 1,
And an orbit formed on the outer circumferential surface of the upper end of the coupling part in contact with the other surface of the two main surfaces of the block. The method according to claim 1 or 5,
And a seating groove is further formed around the top and bottom of the coupling hole of the block in the circumferential direction such that the orbits at the top and bottom of the coupling part of the pipe are accommodated. The method of claim 1,
The block is a pipe assembly, characterized in that the side is partially cut open to the coupling hole to the side to fit the pipe.

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