Cylinder structural member and heat exchanger fixing system comprising same

Abstract

The present invention relates to a cylinder structure and a heat exchanger fixing system comprising the same, and more particularly, to a cylinder structure applied to a heat exchanger. The column structure according to the present invention has the effect of increasing weldability during brazing by forming a groove in the center of the joint part of the column into which the plate is pressed to reduce the thickness thereof, thereby facilitating the press-fitting of the column part into the plate and further enhancing the bonding between the plate and the column part.

Description

Technical Field

[0001] The present invention relates to a column structure, and more particularly, to a column structure used in a heat exchanger. Background Art

[0002] Conventional plate heat exchangers are constructed with separate hot and cold water inlets and outlets formed on one side, and are assembled separately with corresponding components (e.g., AC drain pipes, cooling water pipes, etc.). With conventional plate heat exchanger assembly structures, AC drain pipes, cooling water pipes, etc. can be assembled separately in the plate heat exchanger.

[0003] Furthermore, existing plate heat exchangers have a separate protruding columnar (boss) structure for connection to the external component MT'g. This columnar structure can be brazed to the plate's outer panel. To secure the columnar structure to the plate prior to brazing, a separate welding process (Tig welding) or mechanical fastening is employed. Mechanical fastening is preferred for cost and aesthetic reasons, but insufficient fastening between the columnar structure and the plate can lead to poor brazing.

[0004] like Figure 1 As shown, existing column structures use an interference fit to secure the heat exchanger 3's plate 2 and column 1. However, due to component tolerances or poor securing procedures, the column can often become detached. Furthermore, if brazing is poor, the column 1 can either naturally detach from the plate 2 or be forcibly detached due to assembly torque during assembly with the corresponding component.

[0005]

Current technical literature

[0006] [Patent Literature]

[0007] Korean Patent Publication No. 10-2012-001208 "Aluminum fastening column and method for joining the same to an aluminum base material" Summary of the Invention

[0008] Technical problems to be solved

[0009] The present invention is made to solve the problems mentioned above. The purpose of the present invention is to provide a column structure and a heat exchanger fixing system including the column structure. By forming a groove in the center of the column joint part pressed into the plate to reduce its thickness, the column part can be easily pressed into the plate, and the connection between the plate and the column part is further strengthened, thereby increasing the weldability during brazing.

[0010] Furthermore, a column structure and a heat exchanger fixing system including the column structure are provided, which are designed to avoid communication between the thread and the pressing portion of the groove as the center of the joint, thereby preventing the coating layer from contaminating the thread along the pressing portion.

[0011] In addition, a columnar structural member and a heat exchanger fixing system including the columnar structural member are provided, so that the thread is connected to the clamping part of the groove serving as the center of the joint, and a multi-level structure is designed in the connecting channel to increase the flow length of the coating layer, thereby preventing the coating layer from contaminating the thread along the clamping part.

[0012] Means of solving technical problems

[0013] In order to solve the problems described above, a column structure according to one embodiment of the present invention is applied to a heat exchanger to fix the heat exchanger to an external component. The column structure is characterized in that it includes: a coupling portion, which is coupled to a cover plate of the heat exchanger and extends in a direction perpendicular to one side of the cover plate; and a protrusion, which protrudes from one end of the coupling portion.

[0014] Furthermore, the invention is characterized in that a pressing portion is formed on the connecting portion, and the pressing portion is a circular groove of a predetermined depth formed along the same direction as the extending direction of the connecting portion.

[0015] Furthermore, the present invention is characterized in that the depth of the pressing portion is the same as or shorter than the extending length of the coupling portion.

[0016] Furthermore, the protrusion is characterized in that the protrusion includes a threaded portion formed to a predetermined depth along the same direction as the extending direction of the coupling portion on an inner side surface, and the threaded portion and the pressing portion are spaced a predetermined distance apart from each other along the extending direction of the coupling portion.

[0017] Furthermore, the invention is characterized in that one surface of the pressing portion, which faces the distal end surface of the threaded portion, is formed in a shape corresponding to the distal end surface of the threaded portion.

[0018] Furthermore, the protruding portion is characterized in that a threaded portion is formed on a side surface thereof and is formed to a predetermined depth in the same direction as the extending direction of the coupling portion, and the threaded portion and the pressing portion are connected to each other.

[0019] Furthermore, the feature is that the pressing portion has at least one protrusion of a predetermined height formed on an inner side surface.

[0020] Furthermore, the feature is that the inner side surface of the pressing portion is formed in a stepped shape, and the inner diameter thereof increases from one end toward the other end of the coupling portion.

[0021] Furthermore, the present invention is characterized in that the diameter of the threaded portion is smaller than the diameter of the pressing portion.

[0022] Furthermore, the feature is that the connecting portion is formed to be inclined outward from a portion in contact with the protruding portion toward a distal end.

[0023] Furthermore, the feature is that the protruding portion and the connecting portion are formed of the same material and are integrally molded.

[0024] A heat exchanger fixing system according to an embodiment of the present invention is characterized in that it includes: a column structure, which includes: a coupling portion, which is coupled to the cover plate of the heat exchanger and extends in a direction perpendicular to one side of the cover plate; and a protrusion, which protrudes from one end of the coupling portion; and a cover plate, one side of which is in contact with the outer surface of the heat exchanger and is formed with a mounting hole for clamping the column structure, wherein the mounting hole includes an extension portion at an edge extending toward the outside of the heat exchanger by a specified height.

[0025] Furthermore, the feature is that the diameter of the protrusion is larger than the diameter of the mounting hole, and the protrusion is connected to and overlaps the end of the extension.

[0026] Furthermore, the invention is characterized in that the extension length of the connecting portion is shorter than the extension length of the extending portion.

[0027] Furthermore, the feature is that the connecting portion is formed into a shape corresponding to the inner surface of the extension portion of the cover plate, so that the outer surface of the connecting portion is entirely in contact with the inner surface of the extension portion.

[0028] Furthermore, the feature is that the coupling portion is inserted into the mounting hole and coupled to the mounting hole by brazing. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a cross-sectional view showing a conventional connection between a column and a plate.

[0030] Figure 2 This is a perspective view of a plate heat exchanger to which the heat exchanger fixing system of the present invention is applied.

[0031] Figure 3 2 is a cross-sectional view of a heat exchanger fixing system using a first embodiment of a column structure.

[0032] Figure 4 2 is a cross-sectional view of a heat exchanger fixing system to which a second embodiment of the column structure of the present invention is applied.

[0033] Figure 5 4 is a cross-sectional view of a heat exchanger fixing system to which a third embodiment of the column structure of the present invention is applied.

[0034] Explanation of symbols

[0035] 1000: Heat exchanger fixing system

[0036] 100: Cover

[0037] 110: Mounting hole

[0038] 111: Extension

[0039] 200: Column structure

[0040] 210: Joint

[0041] 211: Compression part

[0042] 220: Protrusion

[0043] 221: Threaded part

[0044] H: Heat exchanger DETAILED DESCRIPTION

[0045] The technical concept of the present invention will be described in more detail below using the accompanying drawings. Before proceeding, the terms and words used in this specification and claims should not be interpreted in a manner limited to their ordinary meanings or dictionary meanings. In order to best describe their invention, the inventor should appropriately define the terms and concepts, and should be interpreted as meanings and concepts consistent with the technical concept of the present invention.

[0046] Below, refer to Figures 2 to 3 , the basic structure of the heat exchanger fixing system 1000 and the first embodiment of the column structure 200 of the present invention are described.

[0047] like Figure 2 As shown, the heat exchanger fixing system 1000 of the present invention is applied to a heat exchanger H for fixing the heat exchanger H to an external component, and may include a cover plate 100 and a column structure 200. One side of the cover plate 100 contacts the outer surface of the heat exchanger H, thereby covering the heat exchanger H, and may be formed with a mounting hole 110. Furthermore, the column structure 200 is fixed to the mounting hole 110 of the cover plate 100 and may be connected to the external structure. Installation. By including the column structure 200, the position of the heat exchanger H on the external component can be fixed. The column structure 200 and the cover plate 100 can be brazed to each other after being combined with each other.

[0048] At this time, if Figure 3As shown, the column structure 200 of the present invention may include a coupling portion 210 and a protrusion 220. The coupling portion 210 can be inserted into the mounting hole 110 and can extend perpendicularly to the surface of the cover plate 100 in which the mounting hole 110 is formed. The protrusion 220 protrudes from one end of the coupling portion 210 and can have a diameter larger than that of the coupling portion 210 and the mounting hole 110. Thus, when the coupling portion 210 is pressed into and secured within the extension portion 111, it can abut and overlap the end of the extension portion 111. In this manner, the protrusion 220 and the coupling portion 210 can be formed as a single, integral component and can be molded together. Furthermore, the protrusion 220 can include a threaded portion 221 on its inner side, formed to a predetermined depth along the same direction as the coupling portion 210 extends. The inclusion of the threaded portion 221 allows for the engagement of a bolt and a screwdriver, allowing the column structure 200 to rotate along with the bolt and the screwdriver while being pressed into the mounting hole 110.

[0049] Furthermore, the mounting hole 110 may include an extension portion 111 on its edge that extends a predetermined height toward the outside of the heat exchanger H. By including the extension portion 111, when the coupling portion 210 is inserted into the mounting hole 110, the side surface of the coupling portion 210 can contact the end surface of the extension portion 111, thereby more firmly supporting the coupling portion 210 in the mounting hole 110. Furthermore, the coupling portion 210 may be formed with a pressing portion 211, which is a circular groove of a predetermined depth formed in the same direction as the extension direction of the coupling portion 210, i.e., perpendicular to the surface of the cover plate 100.

[0050] By including the pressing portion 211, when the coupling portion 210 is clamped into the mounting hole 110, it contacts the mounting hole 110 and the extension portion 111, so that the thickness in the radial direction of the force may become thinner, so that the coupling portion 210 can be easily deformed according to the shape of the extension portion 111, and the coupling portion 210 can be pressed against the extension portion 111. Ultimately, the coupling portion 210 is in close contact with the extension portion 111 and the mounting hole 110, which can improve the bonding strength. In addition, by forming the pressing portion 211, even if the diameter of the mounting hole 110 is formed to be smaller than the diameter of the coupling portion 210 as a whole, the coupling portion 210 can be easily clamped into the mounting hole 110, which can improve the bonding strength between the mounting hole 110 and the coupling portion 210. For this reason, the weldability can be increased during subsequent brazing.

[0051] In this case, the extension length of the connecting portion 210 can be shorter than the extension length of the extending portion 111. Thus, the end of the connecting portion 210 can be separated from the outer surface of the heat exchanger H by a predetermined distance and not in contact with the outer surface. By designing the connecting portion 210 in this manner, damage to the heat exchanger H due to the connecting portion 210 can be avoided.

[0052] Furthermore, the depth of the pressing portion 211 can be formed to be the same as or shorter than the extended length of the coupling portion 210. By adopting this design, the rigidity of the coupling portion 210 itself is prevented from being reduced as the pressing portion 211 is formed, and at least a portion thereof can be firmly connected to the protrusion 220.

[0053] At this time, Figure 3 In the illustrated first embodiment of the columnar structural member 200, the threaded portion 221 formed on the protruding portion 220 and the pressing portion 211 formed on the coupling portion 210 may not be connected to each other. More specifically, the threaded portion 221 and the coupling portion 210 may be separated by a predetermined distance along the extending direction of the threaded portion 221 and the coupling portion 210. That is, the sum of the depth of the threaded portion 221 and the depth of the coupling portion 210 may be shorter than the overall length of the columnar structural member 200. Furthermore, in one embodiment, the threaded portion 221 and the pressing portion 211 may be separated by a predetermined distance along a direction parallel to a surface of the cover plate 100. That is, a partition may be formed between the pressing portion 211 and the threaded portion 221 to distinguish them from each other. In this embodiment, the depth of the threaded portion 221 and the pressing portion 211 is not limited without reducing the rigidity of the entire columnar structural member 200.

[0054] Therefore, even if the cladding layer (Clad) on the surface of the heat exchanger H or the cover plate 100 is worn and deformed and fills the pressing portion 211, the threaded portion 221 is designed to be disconnected from the pressing portion 211, so that Figure 3 The middle arrow indicates that the coating formed internally does not come into contact with the threaded portion 221, preventing contamination of the threaded portion 221 by the coating. This ensures a more secure connection between the threaded portion 221 and the bolt, minimizing errors when inserting the column structure 200 into the mounting hole 110. Ultimately, this facilitates the fixation between the column structure 200 and the cover plate 100, improving weldability during subsequent brazing.

[0055] Furthermore, one side of the pressing portion 211 (the end side of the coupling portion 210) opposite the end face of the threaded portion 221 can be formed to correspond to the shape of one side of the threaded portion 221. More specifically, the threaded portion 221 is used to engage the screw, and the end face that contacts the end of the screw can be formed into a shape such as a conical side surface. In this case, one side of the pressing portion 211 can also be formed into a corresponding shape. This makes the thickness of the wall dividing the threaded portion 221 and the pressing portion 211 uniform, thereby improving durability.

[0056] Below, refer to Figure 4 A second embodiment of the column structure 200 of the present invention will be described.

[0057] like Figure 4As shown, in the second embodiment of the column structure 200, the threaded portion 221 formed on the protruding portion 220 and the pressing portion 211 formed on the coupling portion 210 can communicate with each other. However, in this case, the diameter of the threaded portion 221 can be smaller than the diameter of the pressing portion 211. In other words, a step portion can be formed at the communicating portion between the threaded portion 221 and the pressing portion 211.

[0058] Therefore, even if the coating layer on the surface of the heat exchanger H or the cover plate 100 is worn and deformed and filled in the pressing portion 211, as shown in FIG. Figure 4 The middle arrow indicates that as the coating moves along the pressing portion 211, the step between the threaded portion 221 and the pressing portion 211 blocks most of the coating and extends the coating's flow length, thereby preventing contamination of the threaded portion 221. This ensures a more secure connection between the threaded portion 221 and the bolt, minimizing errors when inserting the column structure 200 into the mounting hole 110. Ultimately, this facilitates the fixation between the column structure 200 and the cover plate 100, improving weldability during subsequent brazing.

[0059] Furthermore, the inner side surface of the pressing portion 211 may be formed with a protrusion of a predetermined height. Alternatively, the inner side surface of the pressing portion 211 may be formed in a stepped shape, or may be formed in a shape in which the inner diameter increases from one end toward the other end of the coupling portion 210. By forming the inner side surface of the pressing portion 211 in this way, even if the pressing portion 211 is filled with a coating layer, it is possible to more effectively prevent the coating layer from flowing along the pressing portion 211 toward the threaded portion 221 due to the protrusion.

[0060] Below, refer to Figure 5 A third embodiment of the column structure 200 of the present invention will be described.

[0061] like Figure 5 As shown, the coupling portion 210 can be formed to tilt outward from the point where it meets the protrusion 220 toward the end. Alternatively, it can be formed to correspond to the inner surface of the extension portion 111 of the cover plate 100, so that the outer surface of the coupling portion 210 completely contacts the inner surface of the extension portion 111. As a result, when the column structure 200 is pressed into the mounting hole 110 of the cover plate 100, the force applied from the inside of the extension portion 111 to the outside of the coupling portion 210 is increased, thereby improving the bonding strength between the cover plate 100 and the column structure 200. Furthermore, this has the effect of enhancing weldability during subsequent brazing.

[0062] The technical concept of the present invention should not be limited to the above-described embodiments. It should be understood that its scope of application is diverse, and those skilled in the art may implement various modifications without departing from the spirit of the present invention as claimed in the claims. Therefore, such improvements and modifications that are obvious to those skilled in the art are included within the scope of protection of the present invention.

Claims

1. A column structure, which is applied to a heat exchanger to fix the heat exchanger to an external component, wherein the column structure is characterized in that it comprises: A connecting portion connected to the cover plate of the heat exchanger and extending in a direction perpendicular to one side of the cover plate; as well as The protrusion is formed to protrude from one end of the above-mentioned connecting part.

2. The column structure according to claim 1, characterized in that: The coupling portion is formed with a pressing portion, which is a circular groove of a predetermined depth and is formed along the same direction as the extending direction of the coupling portion.

3. The column structure according to claim 2, characterized in that: The depth of the pressing portion is the same as or shorter than the extending length of the combining portion.

4. The column structure according to claim 2, characterized in that: The protrusion includes a threaded portion formed to a predetermined depth on an inner side surface along the same direction as the extending direction of the coupling portion. The threaded portion and the pressing portion are spaced apart from each other by a predetermined interval along an extending direction of the coupling portion.

5. The column structure according to claim 4, characterized in that: A surface of the pressing portion that is opposite to a distal end surface of the threaded portion is formed in a shape corresponding to the distal end surface of the threaded portion.

6. The column structure according to claim 2, characterized in that: The protrusion includes a threaded portion having a side surface and formed to a predetermined depth in the same direction as the extending direction of the coupling portion. The threaded portion and the pressing portion are connected to each other.

7. The column structure according to claim 6, characterized in that: The pressing portion has at least one protrusion of a predetermined height formed on the inner side surface.

8. The column structure according to claim 6, characterized in that: The inner side surface of the pressing portion is formed into a step shape. The inner diameter of the pressing portion increases from one end toward the other end of the coupling portion.

9. The column structure according to claim 6, characterized in that: The diameter of the threaded portion is smaller than the diameter of the pressing portion.

10. The column structure according to claim 2, characterized in that: The coupling portion is formed to be inclined outward from a portion in contact with the protruding portion toward a distal end.

11. The column structure according to claim 1, characterized in that: The protruding portion and the connecting portion are formed of the same material and are integrally formed.

12. A heat exchanger fixing system, characterized in that: include: The column structure comprises: a coupling portion coupled to a cover plate of a heat exchanger and extending in a direction perpendicular to one side of the cover plate; and a protruding portion protruding from one end of the coupling portion; and A cover plate, one side of which contacts the outer surface of the heat exchanger and is formed with a mounting hole for clamping the column structure. The mounting hole includes an extension portion at an edge thereof, the extension portion extending toward the outside of the heat exchanger to a predetermined height.

13. The heat exchanger fixing system according to claim 12, characterized in that: The protrusion has a diameter greater than that of the mounting hole and is connected to and overlaps a distal end of the extension.

14. The heat exchanger fixing system according to claim 12, characterized in that: An extension length of the coupling portion is shorter than an extension length of the extending portion.

15. The heat exchanger fixing system according to claim 12, characterized in that: The connecting portion is formed in a shape corresponding to the inner surface of the extending portion of the cover plate, so that the outer surface of the connecting portion is entirely in contact with the inner surface of the extending portion.

16. The heat exchanger fixing system according to claim 12, characterized in that: The coupling portion is inserted into the mounting hole and coupled to the mounting hole by brazing.

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