CN211651355U

CN211651355U - Novel soldering lug for heat exchanger

Info

Publication number: CN211651355U
Application number: CN202020140536.4U
Authority: CN
Inventors: 帅伟强; 陈天鹏
Original assignee: Weal Yield Jiangsu Heat Exchanger Co ltd
Current assignee: Weal Yield Jiangsu Heat Exchanger Co ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-10-09
Anticipated expiration: 2030-01-21

Abstract

The utility model belongs to the technical field of the soldering lug technique and specifically relates to a novel soldering lug for heat exchanger, heat exchanger include a plurality of heat transfer slab, heat transfer slab's four corners is equipped with four round holes, and is three the round hole is ordinary angle hole, one the round hole is distribution angle hole, distribution angle hole department has the face of weld of being convenient for with two adjacent heat transfer slab welding together, be equipped with the distributive groove on the face of weld, the soldering lug includes the soldering lug body unanimous with heat transfer slab structure, be equipped with the soldering lug angle hole that corresponds with ordinary angle hole on the soldering lug body and the soldering lug distribution hole that corresponds with distribution angle hole, soldering lug distribution hole department is equipped with the solder strip, the solder strip separates into two parts with the soldering lug distribution hole. The utility model discloses a soldering lug separates the soldering lug distribution hole for the solder strip of two parts through setting up in soldering lug distribution hole department, makes the vacuum welding in-process, and the solder strip part is inhaled to face of weld department and is realized the welding, has guaranteed welding strength promptly, also can not cause the distribution hole to block up.

Description

Novel soldering lug for heat exchanger

Technical Field

The utility model belongs to the technical field of the soldering lug technique for the heat exchanger and specifically relates to a novel soldering lug for heat exchanger.

Background

The soldering lug for the heat exchanger on the market at present is a structure consistent with the corner hole of the heat exchange plate, and although the structure is convenient for manufacturing the soldering lug, the soldering lug has some obvious defects: if the welding effect of the distribution holes is emphasized, the distribution holes are not blocked in the welding process, and the welding strength cannot be ensured; if the welding strength is ensured, the distribution hole is easy to block, and especially under the condition that the distribution hole is too small, the conventional soldering lug structure cannot block the hole at all. Therefore, the existing soldering lug design leads to higher rejection rate in the welding process of the heat exchanger, and therefore, a novel soldering lug which can take the two conditions into consideration is necessary to be designed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the problem that the soldering lug structure for the current heat exchanger can't compromise welding strength and unblock distribution hole and lead to the disability rate high, the utility model provides a novel soldering lug for heat exchanger separates the solder lug distribution hole for the solder strip of two parts through setting up in solder lug distribution hole department, makes the vacuum welding in-process, and the solder strip part is inhaled to face of weld department and is realized the welding, has guaranteed welding strength promptly, can not cause the distribution hole to block up yet, has improved the qualification rate, the effectual above-mentioned problem of having solved.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a novel soldering lug for heat exchanger, heat exchanger include a plurality of heat transfer slab pieces, heat transfer slab piece's four corners is equipped with four round holes, and is three the round hole is ordinary angle hole, one the round hole is distribution angle hole, distribution angle hole department has the face of weld of being convenient for with two adjacent heat transfer slab pieces welding together, be equipped with the distributive groove on the face of weld, the soldering lug includes the soldering lug body unanimous with heat transfer slab structure, be equipped with the soldering lug angle hole that corresponds with ordinary angle hole on the soldering lug body and the soldering lug distribution hole that corresponds with distribution angle hole, soldering lug distribution hole department is equipped with the solder strip, the solder strip is separated into two parts with the soldering lug distribution hole.

Specifically, the solder strip divides the solder tab dispensing aperture into two semi-circles of equal area.

Specifically, the included angle between the straight line of the welding strip and the axis of the distribution groove is alpha, and alpha is 60-120 degrees.

Specifically, α is 90 ° as described above.

Specifically, the diameter of the tab dispensing aperture is greater than the diameter of the dispensing horn aperture.

Specifically, the diameter of the lug dispensing hole is 2-10mm larger than the diameter of the dispensing horn hole.

Specifically, the diameter of the lug dispensing hole is 4-8mm larger than the diameter of the dispensing horn hole.

Specifically, the area of the solder strip is 1/3-4/5 of the area of the soldering surface.

The utility model has the advantages that: (1) the welding lug of the utility model divides the welding lug distribution hole into two parts by arranging the welding strip at the welding lug distribution hole, so that the welding strip is sucked to the welding surface to realize welding in the vacuum welding process, thereby ensuring the welding strength and avoiding the blockage of the distribution hole;

(2) the solder strip is arranged in the center of the solder piece distribution hole, so that the solder strip can be uniformly sucked to the periphery, and the uneven distribution of the solder can be effectively avoided;

(3) the included angle between the straight line of the welding strip and the axis of the distribution groove is 90 degrees, so that the blockage of the distribution hole due to the fact that the welding flux is absorbed to the distribution hole can be effectively avoided;

(4) the area of the solder strip is 1/3-4/5 of the area of the soldering surface, so that the blockage of the distribution hole caused by excessive solder can be effectively avoided on the premise of ensuring the soldering strength.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic structural diagram of a soldering lug of the present invention;

FIG. 2 is a schematic structural view of a heat exchange plate used for welding by the soldering lug of the present invention;

FIG. 3 is a schematic view of the application of the soldering lug of the present invention;

in the figure: 1, heat exchange plate sheets; 11. a common corner hole; 12. distributing corner holes; 13. welding a surface; 14. a distribution tank; 2. a lug body; 21. fillet corner holes; 22. a tab dispensing aperture; 23. and (7) welding the strip.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

The utility model provides a novel soldering lug for heat exchanger, as shown in fig. 1-2, the heat exchanger includes a plurality of heat transfer plate pieces 1, the four corners of heat transfer plate piece 1 is equipped with four round holes, three round hole is ordinary angular hole 11, a round hole is distribution angular hole 12, distribution angular hole 12 department has the face of weld 13 of being convenient for weld two adjacent heat transfer plate 1 pieces together, be equipped with distribution groove 14 on the face of weld 13, the soldering lug includes soldering lug body 2 with heat transfer plate piece 1 structure unanimity, be equipped with soldering lug angular hole 21 that corresponds with ordinary angular hole 11 and the soldering lug distribution hole 22 that corresponds with distribution angular hole 12 on soldering lug body 2, soldering lug distribution hole 22 department is equipped with solder strip 23, solder strip 23 separates into two parts with soldering lug distribution hole 22.

After the two heat exchange plate sheets 1 are welded together, the distribution grooves 14 of the two heat exchange plate sheets 1 can form distribution holes, and in the vacuum welding process, the welding strips 23 are sucked to the welding surface 13 to realize welding, so that the welding strength is ensured, and the blockage of the distribution holes cannot be caused.

In a particular embodiment, as shown in fig. 1, solder ribbon 23 divides tab dispensing aperture 22 into two semi-circles of equal area. The design can ensure that the solder strip 23 is uniformly sucked to the periphery, and uneven distribution of the solder can be effectively avoided.

In a particular embodiment, shown in fig. 3, the angle between the line in which the solder ribbon 23 is located and the axis of the distribution channel 14 is α, which is 60 ° to 120 °.

In one particular embodiment, as shown in FIG. 3, α is 90. In the actual welding process, the alpha is 90 degrees, so that the distribution hole can be completely prevented from being blocked, and the qualification rate is greatly improved.

In a particular embodiment, as shown in FIG. 3, tab dispensing aperture 22 has a diameter that is greater than the diameter of dispensing horn aperture 12. Clogging of the dispensing hole can be further avoided.

In a specific embodiment, the diameter of tab dispensing aperture 22 is 2-10mm larger than the diameter of dispensing horn aperture 12.

In a specific embodiment, the diameter of tab dispensing aperture 22 is 4-8mm larger than the diameter of dispensing horn aperture 12.

In one particular embodiment, the solder strip 23 has an area 1/3-4/5 of the area of the bonding surface 13. Too small area of the welding strip 23 easily causes insufficient welding strength, too large area of the welding strip 23 easily causes blockage of the distribution holes, and the design can effectively avoid blockage of the distribution holes while ensuring welding strength.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a novel soldering lug for heat exchanger, heat exchanger include a plurality of heat transfer board pieces (1), the four corners of heat transfer board piece (1) is equipped with four round holes, and is three the round hole is ordinary angular hole (11), one the round hole is distribution angular hole (12), distribution angular hole (12) department has face of weld (13) of being convenient for with two adjacent heat transfer board pieces (1) welding together, be equipped with distributing groove (14) on face of weld (13), its characterized in that: the soldering lug includes soldering lug body (2) unanimous with heat transfer plate (1) structure, be equipped with soldering lug angular hole (21) that correspond with ordinary angular hole (11) on soldering lug body (2) and soldering lug distribution hole (22) that correspond with distribution angular hole (12), soldering lug distribution hole (22) department is equipped with solder strip (23), solder strip (23) are separated into two parts with soldering lug distribution hole (22).

2. The novel lug for a heat exchanger of claim 1, wherein: the solder strip (23) divides the solder piece distribution hole (22) into two semicircles with equal areas.

3. The novel lug for a heat exchanger of claim 1, wherein: the included angle between the straight line of the welding strip (23) and the axis of the distribution groove (14) is alpha, and alpha is 60-120 degrees.

4. The novel lug for a heat exchanger of claim 3, wherein: the alpha is 90 deg.

5. The novel lug for a heat exchanger of claim 1, wherein: the diameter of the tab dispensing aperture (22) is greater than the diameter of the dispensing horn aperture (12).

6. The novel lug for a heat exchanger of claim 5, wherein: the diameter of the lug distribution hole (22) is 2-10mm larger than that of the distribution angle hole (12).

7. The novel lug for a heat exchanger of claim 6, wherein: the diameter of the lug distribution hole (22) is 4-8mm larger than that of the distribution angle hole (12).

8. The novel lug for a heat exchanger of claim 1, wherein: the area of the welding strip (23) is 1/3-4/5 of the area of the welding surface (13).