CN112665440A

CN112665440A - Current collecting assembly and radiator

Info

Publication number: CN112665440A
Application number: CN202011529357.0A
Authority: CN
Inventors: 余晓峰; 余海强; 徐欢; 熊永家
Original assignee: Zhejiang Yinlun Machinery Co Ltd
Current assignee: Zhejiang Yinlun Machinery Co Ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-04-16

Abstract

The invention relates to the technical field of heat exchange devices, in particular to a current collecting assembly and a radiator. The current collecting assembly comprises a solder sheet and a current collecting pipe; along the length direction of the collecting pipe, a plurality of first jacks are arranged on the collecting pipe at intervals, along the length direction of the solder sheet, a plurality of second jacks are arranged on the solder sheet at intervals, and the first jacks and the second jacks are arranged in a one-to-one opposite mode; the first jack and the second jack are used for enabling the end part of the heat exchange tube to be inserted into the collector tube. The collecting pipe assembly provided by the invention can realize the welding of the collecting pipe and the heat exchange pipe through the solder sheets, the collecting pipe is prevented from adopting a composite material, the production cost of a radiator is greatly reduced, and the structural form of the collecting pipe is not limited to a single-pipe form and can be formed into a multi-pipe form through extrusion; in addition, the collecting pipes can be arranged in different thicknesses, and the collecting assembly with the structure enables the radiator to have good flexibility and high selectivity.

Description

Current collecting assembly and radiator

Technical Field

The invention relates to the technical field of heat exchange devices, in particular to a current collecting assembly and a radiator.

Background

Compared with a seal type radiator, the pipe-belt type radiator has the advantages of light weight and high assembling efficiency. The general pipe-belt type radiator comprises a collecting pipe and a plurality of heat exchange pipes, wherein the heat exchange pipes are arranged at intervals along the length direction of the collecting pipe, and each heat exchange pipe is inserted into the collecting pipe to be communicated with the collecting pipe; a plurality of heat exchange tubes and a collecting tube are connected through welding, traditionally, welding flux is coated on the collecting tube, then the heat exchange tubes and the collecting tube are welded, but the defect of insufficient soldering and missing soldering is easily caused by the coating of the welding flux. Someone adopts combined material to pass through extrusion pressure manifold, and the skin of pressure manifold can improve welding quality for can realizing welded solder layer through this kind of mode, but the cost is higher, and when the pressure manifold includes two above when setting up the manifold side by side, the pressure manifold is difficult to realize extrusion pressure manifold moreover.

Disclosure of Invention

The invention aims to provide a collecting pipe assembly and a radiator, and aims to solve the technical problems that in the prior art, a collecting pipe is formed by extrusion molding of a composite material, the outer layer of the collecting pipe is a solder layer capable of realizing welding, the welding quality can be improved by the mode, but the cost is high, and when the collecting pipe comprises more than two manifolds arranged in parallel, the collecting pipe is difficult to realize extrusion molding.

The present invention provides a current collecting assembly comprising: a solder sheet and a current collecting tube; along the length direction of the collecting pipe, a plurality of first jacks are arranged on the collecting pipe at intervals, along the length direction of the solder sheet, a plurality of second jacks are arranged on the solder sheet at intervals, and the first jacks and the second jacks are arranged in a one-to-one opposite mode; the first jack and the second jack are used for enabling the end part of the heat exchange tube to be inserted into the collector tube.

Furthermore, a positioning part is arranged on the solder sheet, a fitting part is arranged on the collecting pipe, and the positioning part is connected with the fitting part.

Further, the header and the solder sheet are punched together.

Further, the thickness of the solder sheet is 0.1 mm-0.2 mm.

Furthermore, in the width direction of the solder sheet, flanges are arranged on two sides of the solder sheet in the direction close to the side wall of the collecting pipe, and the flanges on the two sides of the solder sheet abut against the side wall of the collecting pipe.

Furthermore, the collecting assembly also comprises a flow guide pipe arranged on the collecting pipe; the collecting pipe comprises at least two manifolds arranged side by side, the collecting pipe is integrally formed, and the manifolds are communicated with the flow guide pipe.

Furthermore, the number of the manifolds is two, and the cross sections of the manifolds are arranged in a square shape; the inner side plate of one manifold is arranged adjacent to the inner side plate of the other manifold, the outer side plate of the manifold is arranged opposite to the inner side plate, and a bottom plate is connected between the inner side plate and the outer side plate; and a fillet is arranged between the inner side plate and the bottom plate.

Furthermore, a fillet is arranged between the outer side plate and the bottom plate, and the width of the bottom plate is smaller than that of the heat exchange tube.

Furthermore, the collecting pipe also comprises a top plate, the top plate covers the tops of the two manifolds, and the length direction of the top plate is consistent with that of the manifolds.

Furthermore, the tops of at least two manifolds are provided with notches, and the flow guide pipe is clamped in the notches; at least two openings are arranged on the side wall of the draft tube, and the openings are in one-to-one correspondence with the notches.

The invention provides a radiating tube which comprises the current collecting assembly and a plurality of heat exchange tubes, wherein the heat exchange tubes and the first jacks are arranged in a one-to-one correspondence mode, and the end parts of the heat exchange tubes sequentially penetrate through the second jacks and the first jacks to be inserted into the current collecting tubes.

The invention provides a current collecting assembly, which comprises a solder sheet and a current collecting pipe; along the length direction of the collecting pipe, a plurality of first jacks are arranged on the collecting pipe at intervals, along the length direction of the solder sheet, a plurality of second jacks are arranged on the solder sheet at intervals, and the first jacks and the second jacks are arranged in a one-to-one opposite mode; the first jack and the second jack are used for enabling the end part of the heat exchange tube to be inserted into the collector tube.

In the process of assembling the collecting assembly and the heat exchange tube to form the radiator, the bottom of the collecting tube is covered with the welding sheets, so that the first jacks and the second jacks are correspondingly aligned one by one, the end part of the heat exchange tube sequentially passes through the second jacks and the first jacks and then is inserted into the collecting tube, then the assembled radiator is placed into a brazing furnace, and the collecting tube and the heat exchange tube are welded by melting the welding sheets. According to the invention, the welding of the collecting pipe and the heat exchange pipe is realized through the welding sheets, the collecting pipe is prevented from adopting a composite material, the production cost of the radiator is greatly reduced, and the structural form of the collecting pipe is not limited to a single-pipe form and can be formed into a multi-pipe form through extrusion; in addition, the collecting pipes can be arranged in different thicknesses, and the collecting assembly with the structure enables the radiator to have good flexibility and high selectivity.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of a first current collecting assembly according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a second current collecting assembly provided by an embodiment of the present invention;

fig. 3 is a schematic structural view of a third current collector assembly provided by an embodiment of the present invention;

fig. 4 is a schematic view of a perspective view of the current collector assembly shown in fig. 3;

fig. 5 is a schematic structural view from another perspective of the current collector assembly shown in fig. 3;

fig. 6 is a schematic view of the structure of a header in the header assembly shown in fig. 3;

fig. 7 is a schematic view of the flow conduit of the manifold assembly shown in fig. 3.

FIG. 8 is a schematic structural diagram of a heat sink provided in accordance with an embodiment of the present invention;

in the figure: 10-collecting pipe; 20-a draft tube; 30-a mounting seat; 40-plug; 50-blocking cover; 60-solder pieces; 70-heat exchange tube; 11-a manifold; 12-a top plate; 13-a notch; 14-chamfering; 15-a first receptacle; 16-inner decking; 17-an outer panel; 18-a base plate; 21-opening; 61-second receptacle.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and fig. 2, the current collecting assembly provided by the present invention includes a solder sheet 60 and a current collecting pipe 10, wherein a plurality of first insertion holes 15 are arranged at intervals on the current collecting pipe 10 along the length direction of the current collecting pipe 10, a plurality of second insertion holes 61 are arranged at intervals on the solder sheet 60 along the length direction of the solder sheet 60, and the plurality of first insertion holes 15 and the plurality of second insertion holes 61 are arranged opposite to each other; the first and

second insertion holes

15 and 61 are used to insert the ends of the heat exchange tube 70 into the header 10, i.e., the ends of the heat exchange tube 70 are inserted into the header 10 through the second and

first insertion holes

61 and 15 in this order.

In the process of assembling the collecting assembly and the heat exchange tube to form the radiator, the solder sheets 60 are covered on the bottom of the collecting main 10 to correspondingly align the first jacks 15 and the second jacks 61, the end of the heat exchange tube 70 sequentially passes through the second jacks 61 and the first jacks 15 and then is inserted into the collecting main 10, then the assembled radiator is placed into a brazing furnace, and the solder sheets 60 are melted to weld the collecting main 10 and the heat exchange tube 70. In the embodiment, the collecting pipe and the heat exchange pipe are welded through the welding sheets 60, the collecting pipe is prevented from being made of composite materials, the production cost of the radiator is greatly reduced, and the structural form of the collecting pipe is not limited to a single-pipe form and can be formed into a multi-pipe form through extrusion; in addition, the collecting pipes can be arranged in different thicknesses, and the collecting assembly with the structure enables the radiator to have good flexibility and high selectivity.

On the basis of the above embodiment, further, a positioning element is disposed on the solder sheet 60, and a fitting element is disposed on the collecting pipe 10, and the positioning element is connected with the fitting element. In this embodiment, through the connection of setting element and fitting piece to the realization avoids the solder piece dislocation with the fixed position of the relative pressure manifold of solder piece, makes things convenient for the equipment of radiator.

The positioning piece can be a protrusion arranged on the solder sheet, the matching piece can be a groove arranged on the collecting pipe, and the protrusion is clamped in the groove; or, the welding flux sheet is provided with a groove, and the collecting pipe is provided with a bulge matched with the groove; or the solder sheet is provided with an L-shaped hook structure, the collecting pipe is provided with an inverted L-shaped hook structure, and the L-shaped hook structure on the solder sheet and the inverted L-shaped hook structure on the collecting pipe 10 are mutually hooked and fixed, and the like.

As an alternative, the edge of the second jack 61 of the solder sheet 60 is provided with a flanging, the flanging is inserted into the first jack 15 on the collecting pipe 10, namely the positioning piece is the flanging of the second jack, the fitting piece is the first jack, the existing structure of the solder sheet 60 and the collecting pipe 10 is reasonably utilized, more structures are avoided being processed, and the processing is simple and convenient.

The second receptacle 61 may be flanged and inserted into the first receptacle 15.

Optionally, the header 10 and the solder sheet 60 are punched together. It can also be understood that, after the solder sheet 60 is placed at the bottom of the collecting pipe 10, the stamping device is used to punch holes on the solder sheet 71 and the collecting pipe 10 at the same time, in the punching process, the edge of the second insertion hole 61 is naturally flanged into the first insertion hole 15 on the collecting pipe 10, and the positioning of the solder sheet and the collecting pipe is completed in the punching process, so that the processing of the collecting assembly is simple and efficient.

Among them, 7-series aluminum material can be used for the solder sheet 60.

The thickness of the solder sheet 60 can be set according to specific requirements, and optionally, the thickness of the solder sheet 60 is 0.1mm to 0.2mm, for example: 0.1mm, 0.12mm, 0.14mm, 0.16mm, 0.18mm, 0.2mm, or the like.

As shown in fig. 1, in addition to the above embodiment, in the width direction of the solder sheet 60, flanges are provided on both sides of the solder sheet 60 in a direction approaching the sidewall of the header 10, and the flanges on both sides of the solder sheet 60 abut against the sidewall of the header 10. In this embodiment, flanges are provided on both sides of the solder sheet 60 in the width direction to wrap the sidewall of the header 10, so that the solder sheet 60 and the header 10 are more attached to each other.

As shown in fig. 1 and 2, the assembly further includes a flow guide tube 20 disposed on the header 10; the collecting main 10 includes two at least manifolds 11 that set up side by side, and two at least manifolds 11 integrated into one piece set up, two at least manifolds 11 all communicate with honeycomb duct 20.

In the in-process of adopting the mass flow subassembly production radiator that this embodiment provided, the mass flow subassembly is two, one gets into the mass flow subassembly as the medium, another is as medium discharge mass flow subassembly, correspondingly, set up multirow heat exchange tube, a row of heat exchange tube corresponds a manifold 11, every row of heat exchange tube all includes a plurality of heat exchange tubes, a plurality of heat exchange tubes set up along the length direction interval of manifold 11, be equipped with the mounting groove that is used for inserting the heat exchange tube on the manifold 11, the one end of heat exchange tube is inserted in the mounting groove of the manifold 11 that the medium got into the mass flow subassembly, the other end of heat exchange tube is inserted in the mounting groove. The guide pipe 20 of the medium entering the collecting assembly is an inlet guide pipe, and the guide pipe 20 of the medium discharging the collecting assembly is an outlet guide pipe. The medium enters the radiator through the inlet flow guide pipe, exchanges heat through the heat exchange pipe, and finally flows out of the radiator through the medium outlet.

In the assembling process of the radiator, the two ends of the heat exchange tube are respectively inserted into the manifold 11 in the medium inlet collecting assembly and the manifold 11 in the medium outlet collecting assembly, the guide tube 20 in the collecting assembly is placed at the designated position of the collecting tube 10, after all parts of the radiator are assembled as required, the radiator is integrally brazed without connecting and fixing at least two manifolds 11, the guide tube 20 is not matched with a connecting block, the assembling process of the collecting assembly is simplified, the assembling process of the radiator is simplified, the assembling efficiency of the radiator can be improved, and the production efficiency of the radiator can be improved. And at least two manifolds 11 are integrally formed, so that the impact on the collecting main 10 and the pressure of the medium in the flowing process of the medium can be resisted, and the strength is high.

The number of the manifolds 11 can be two, three, four or five, etc.; the integral formation of the manifold 10 may be achieved by casting, extrusion or bending.

The shape of the cross section of the manifold 11 may be arranged in a circle, a triangle, a pentagon, an ellipse, etc., or the shape of the cross section of the manifold may be a combination of a U-shape and a semicircle, etc.

As an alternative, as shown in fig. 3, the number of the manifolds 11 is two, and the cross section of the manifolds 11 is arranged in a square shape; the inner side plate of one of the manifolds 11 is arranged adjacent to the inner side plate 16 of the other of the manifolds 11, the outer side plate 17 of the manifold is arranged opposite to the inner side plate 16, and a bottom plate 18 is connected between the inner side plate 16 and the outer side plate 17; a fillet is arranged between the inner side plate 16 and the bottom plate 18.

In this embodiment, the cross section of the manifold 11 is square, so that the manifold 11 can be conveniently bent and formed, and one side of one plate is bent four times to form the manifold 11. The interior plate with be equipped with the fillet between the bottom plate, then form similar triangular's groove in the bottom of two manifolds, conveniently set up the first jack that is used for inserting the heat exchange tube on manifold 11, reduce the punching press power degree that needs, make things convenient for the punching press pore-forming.

The chamfer 14 may be a rounded corner or a chamfered corner.

As shown in fig. 4, on the basis of the above embodiment, further, a rounded corner is provided between the outer side plate 17 and the bottom plate 18, and the width of the bottom plate 18 is smaller than the width of the heat exchange tube 70. In this embodiment, the width of the bottom plate 18 is smaller than the width of the heat exchange tube, and the heat exchange tube intersects with the rounded corner of the air manifold, so that the intersection of the straight line segment of the bottom plate and the heat exchange tube is avoided, and the concentrated stress is reduced.

In addition to the above embodiment, the header 10 further includes the top plate 12, the top plate 12 covers the top portions of the two manifolds 11, and the longitudinal direction of the top plate 12 coincides with the longitudinal direction of the manifolds 11.

In this embodiment, the top portions of the two manifolds 11 (the side of the manifolds 11 far away from the heat exchange core body) are further provided with a top plate 12, and the top plate 12 can improve the strength of the collecting pipe 10, so that the collecting assembly can be applied to an environment with high pressure. In this case, the manifold 10 may be integrally formed by bending, that is, bending both sides of a plate to form the manifold 11 of the manifold 10, and the middle portion of the plate forms the top plate 12 of the manifold 10. Other processes may of course be used.

The collecting pipes 10 are arranged side by side, and two adjacent collecting pipes are communicated with each other, that is, the arrangement of even rows of heat exchange pipes can be realized.

On the basis of the above embodiments, further, the communication between at least two manifolds 11 and the flow guide tube 20 can be realized in various forms, such as: the plurality of manifolds 11 are communicated with each other, and one of the plurality of manifolds 11 is communicated with the flow guide pipe 20, so that the plurality of manifolds 11 are communicated with the flow guide pipe 20.

As an alternative, at least two manifolds 11 are respectively communicated with the draft tube 20, facilitating the processing.

The flow guide tube 20 is disposed on the collecting main 10 in various ways, for example, one end of the flow guide tube 20 passes through one manifold 11 and extends into the other manifold 11, and two through holes are disposed on the flow guide tube 20 and correspond to the two manifolds 11 respectively.

As an alternative, as shown in fig. 3, 5, 6 and 7, the tops of at least two manifolds 11 are provided with notches 13, and the flow guide pipe 20 is clamped in the notches 13; the lateral wall of the draft tube 20 is provided with at least two openings 21, and the at least two openings 21 and the at least two gaps 13 are arranged in a one-to-one correspondence manner.

In this embodiment, set up breach 13 on the manifold 11, this breach 13 has also formed the draw-in groove that can fix a position honeycomb duct 20, is equipped with a plurality of openings 21 on the honeycomb duct 20, and an opening 21 corresponds a breach 13, when assembling the radiator, according to breach 13 and opening 21's corresponding relation, with honeycomb duct 20 card in every breach 13 can, convenient and fast can further improve the assembly efficiency of mass flow subassembly to further improve the assembly efficiency of radiator.

When the header 10 includes the top plate 12, it is needless to say that the top plate 12 is provided with a notch so as to allow the draft tube 20 to be engaged therewith.

It should be noted that one end of the flow guide tube 20 can be used as a medium inlet or a medium outlet, and the other end of the flow guide tube 20 is closed, for example, by a plug 40.

The arc formed at the opening 21 of the flow guide tube 20 is matched with the arc formed at the position of the outlet of the manifold 11, so that the flow guide tube 20 and the manifold 11 are connected, fixed and sealed through welding after being assembled.

The length direction of the duct 20 and the length direction of the manifold 11 may be set at an acute angle.

Alternatively, as shown in fig. 1, the length direction of the manifold 11 is arranged perpendicular to the length direction of the draft tube 20. In this embodiment, the length direction of the manifold 11 is perpendicular to the length direction of the flow guide tube 20, so that the notch 13 is formed on the manifold 11, and the opening 21 is formed on the flow guide tube 20.

As shown in fig. 2 and 3, the manifold assembly further includes a mounting block 30, the mounting block 30 being disposed on the manifold 10. In this embodiment, the mounting seat 30 is disposed on the collecting main 10, so that the connection between the heat sink and other components and the installation of the heat sink are facilitated.

The structure of the mounting seat 30 may be various, for example: as shown in fig. 3, the mounting block 30 includes a base plate and a pin body fixed to the base plate, and the base plate is fixed to the outer wall of the manifold 10.

In this embodiment, the mounting seat 30 may include a bottom plate and a pin fixed on the bottom plate, the bottom plate is fixed on the outer wall of the header pipe 10, and at this time, the bottom plate of the mounting seat 30 may also be welded to the header pipe 10 during the integral brazing process of the heat sink, which facilitates assembly and connection.

For another example: as shown in fig. 3, the mounting seat 30 is elongated, the mounting seat 30 intersects with the manifolds 11, one end of the mounting seat 30 penetrates at least one manifold 11, and the other end of the mounting seat 30 is located outside the header 10.

In this embodiment, one end of the mounting seat 30 penetrates through at least one manifold 11, and the other end of the mounting seat 30 is located outside the header 10, that is, at least a part of the mounting seat 30 is located inside the header 10, so that not only can the mounting function of the radiator be realized, but also the strength of the header 10 can be improved.

Wherein one end of the mounting seat 30 may be disposed through one manifold 11, may be disposed through one manifold 11 and extend into the other manifold 11, and may be disposed through both manifolds 11.

The mounting seat 30 may be disposed in a plate shape or a column shape.

As shown in fig. 2 and 3, in addition to the above-mentioned embodiment, the current collecting assembly further includes caps 50, and the caps 50 are clamped at both ends of the manifold 11.

In this embodiment, the connection between the blocking cover 50 and the manifold 11 is realized through clamping, so that the two ends of the manifold 11 are blocked, the assembly is convenient, and the assembly efficiency is further improved.

Specifically, the blanking cover 50 includes a base plate and a blanking block disposed on the base plate, a positioning protrusion is disposed on the blanking block, a clamping groove is disposed on the inner wall of the manifold 11, and the positioning protrusion is clamped in the clamping groove.

As shown in fig. 8, the present invention provides a heat sink, which includes the above current collecting assembly and a plurality of heat exchanging pipes 70, wherein the plurality of heat exchanging pipes 70 are arranged in one-to-one correspondence with the plurality of first insertion holes 15, and the ends of the heat exchanging pipes 70 sequentially pass through the second insertion holes 61 and the first insertion holes 15 to be inserted into the current collecting pipe 10.

In the embodiment, two current collecting assemblies are adopted, wherein one current collecting assembly is arranged at one end of the heat exchange tube, and the other current collecting assembly is arranged at the other end of the heat exchange tube; in the assembling process, the end of the heat exchange tube 70 sequentially passes through the second insertion hole 61 and the first insertion hole 15 and then is inserted into the header pipe 10, then the assembled radiator is placed into the brazing furnace, the solder sheets 60 are melted to weld the header pipe 10 and the heat exchange tube 70, the radiator provided by the embodiment avoids the header pipe from being made of composite materials, and the production cost is low.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Furthermore, those skilled in the art will appreciate that while some of the embodiments described above include some features included in other embodiments, rather than others, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments. For example, any of the claimed embodiments may be used in any combination. Additionally, the information disclosed in this background section is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Claims

1. A current collecting module comprising a solder tab and a current collecting tube; along the length direction of the collecting pipe, a plurality of first jacks are arranged on the collecting pipe at intervals, along the length direction of the solder sheet, a plurality of second jacks are arranged on the solder sheet at intervals, and the first jacks and the second jacks are arranged in a one-to-one opposite mode; the first jack and the second jack are used for enabling the end part of the heat exchange tube to be inserted into the collector tube.

2. The current collecting assembly as claimed in claim 1, wherein the solder sheet is provided with a positioning member, the current collecting pipe is provided with a fitting member, and the positioning member is connected with the fitting member.

3. A current collecting assembly according to claim 2, wherein the collecting header and the solder sheet are punched together.

4. The current collecting assembly of claim 1, wherein the solder sheet has a thickness of 0.1mm to 0.2 mm.

5. The current collecting assembly as claimed in claim 1, wherein in the width direction of the solder sheet, two sides of the solder sheet are provided with flanges towards the side wall of the current collecting pipe, and the flanges at two sides of the solder sheet abut against the side wall of the current collecting pipe.

6. The current collecting assembly according to any one of claims 1-5, further comprising a flow guide tube disposed on the header; the collecting pipe comprises at least two manifolds arranged side by side, the collecting pipe is integrally formed, and the manifolds are communicated with the flow guide pipe.

7. The current collecting assembly of claim 6, wherein the number of manifolds is two, the cross-section of the manifolds being arranged in a square; the inner side plate of one manifold is arranged adjacent to the inner side plate of the other manifold, the outer side plate of the manifold is arranged opposite to the inner side plate, and a bottom plate is connected between the inner side plate and the outer side plate; and a fillet is arranged between the inner side plate and the bottom plate.

8. The current collecting assembly of claim 7, wherein rounded corners are provided between the outer plates and the base plate, the base plate having a width less than the width of the heat exchange tubes.

9. The current collecting assembly as recited in claim 6, wherein the header further includes a top plate overlying the tops of the two manifolds, the length of the top plate being aligned with the length of the manifolds;

and/or the tops of at least two manifolds are provided with notches, and the flow guide pipe is clamped in the notches; at least two openings are arranged on the side wall of the draft tube, and the openings are in one-to-one correspondence with the notches.

10. A heat radiating pipe comprising the header assembly according to any one of claims 1 to 9 and a plurality of heat exchanging pipes disposed in one-to-one correspondence with the first insertion holes, the ends of the heat exchanging pipes passing through the second insertion holes and the first insertion holes in sequence to be inserted into the header pipe.