Flat tube heat exchanger assembly clamping fixture

Abstract

The utility model discloses a clamping fixture for a flat tube heat exchanger assembly, which comprises a heat exchanger assembly main body, a #-shaped frame body consisting of two transverse long sheets extending left and right and two longitudinal long sheets extending front and back, and vertical extending parts extending downwards formed at the left and right ends of the two transverse long sheets, the heat exchanger assembly body is located between the two vertical extending parts on the left side and the two vertical extending parts on the right side and clamped between the vertical extending parts on the left side and the vertical extending parts on the right side. The heat exchanger assembly is simple in structure and convenient to manufacture, an assembled heat exchanger assembly body can be directly clamped and fixed without being bound through a steel wire rope, the heat exchanger assembly can be directly placed in a brazing furnace for brazing, the heat exchanger assembly can be separated from the heat exchanger assembly body after brazing is completed, mounting and dismounting are convenient, repeated use can be achieved, and waste is reduced.

Description

Technical Field:

[0001] The utility model relates to the technical field of heat exchanger processing equipment, and more specifically to a clamping fixture for a flat tube heat exchanger assembly. Background Art:

[0002] The existing flat tube heat exchanger generally consists of flat tubes coiled in an S shape and a plurality of heat dissipation fins;

[0003] The heat dissipation fins are inserted into the slots of the flat tubes coiled in an S shape. The flat tube heat exchanger is rectangular. After inserting the heat dissipation fins into the flat tubes coiled in an S shape, fixing plates are placed on the left and right sides, and the heat dissipation fins are clamped between the fixing plates and the left and right sides of the flat tubes to complete the assembly. However, at this time, the components in the assembled product are not fixed to each other. Subsequently, welding fixation is required. The existing welding method is to bind and fix the assembled product with a steel wire rope, and then place it in a brazing furnace for brazing fixation. During this process, binding and fixing with a steel wire rope is very troublesome and requires manual operation for binding. Moreover, after brazing is completed, the steel wire rope needs to be disassembled, and the disassembly is also very troublesome. Moreover, the disassembled steel wire rope cannot be reused and can only be recycled as waste, resulting in waste. Summary of the Utility Model:

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a clamping fixture for a flat tube heat exchanger assembly, which has a simple structure and is convenient to manufacture. It can directly clamp and fix the main body of the assembled heat exchanger assembly without using a steel wire rope for binding. It can be directly placed in a brazing furnace for brazing. After completion, it can be separated from the main body of the heat exchanger assembly. Its installation and disassembly are convenient, and it can be reused, reducing waste.

[0005] The solution for the utility model to solve the above technical problems is:

[0006] A clamping fixture for a flat tube heat exchanger assembly includes a main body of the heat exchanger assembly, a well-shaped frame body composed of two horizontally extending transverse long strips and two vertically extending longitudinal long strips. Vertical extension parts extending downward are formed at the left and right ends of the two transverse long strips. The main body of the heat exchanger assembly is located between the two vertical extension parts on the left side and the two vertical extension parts on the right side and is clamped between the vertical extension parts on the left side and the vertical extension parts on the right side.

[0007] First slots extending downward are formed at the left and right parts of the top surface of the transverse long strip, and second slots extending downward are formed at the front and rear parts of the bottom surface of the two longitudinal long strips. The first slots and the corresponding second slots are vertically aligned. The part below the first slot is inserted into the corresponding second slot and is clamped between the front and rear inner side walls of the corresponding second slot. The part above the second slot is inserted into the corresponding first slot and is clamped between the left and right inner side walls of the corresponding first slot.

[0008] When the main body of the heat exchanger assembly is engaged with the cross-shaped frame body, it is only necessary to place the main body of the heat exchanger assembly between the two vertically extending portions on the left side and the two vertically extending portions on the right side and clamp it between the vertically extending portion on the left side and the vertically extending portion on the right side.

[0009] A positioning sleeve is clamped at the lower part of the vertically extending portion;

[0010] A side connecting plate extending forward and backward is fixed between the positioning sleeves on the two vertically extending portions on the left side or the two vertically extending portions on the right side;

[0011] An adjustable pressing piece is installed on the side connecting plate, and the pressing piece presses against the left side wall of the left mounting plate or the right side wall of the right mounting plate of the main body of the heat exchanger assembly.

[0012] Adjusting screw connection through holes are formed in the front and rear parts of the middle part of the side connecting plate. The screw part of the adjusting bolt is screwed into the corresponding adjusting screw connection through hole. The inner end of the screw part of the adjusting bolt extends out of the inner side wall of the corresponding side connecting plate and is movably connected with the pressing piece. A locking nut is screwed on the screw part of the adjusting bolt, and the locking nut presses against the wall surface of the corresponding side connecting plate.

[0013] When the width of the main body of the heat exchanger assembly is much smaller than the distance between the left and right vertically extending portions of the cross-shaped frame body, it is necessary to install components such as positioning sleeves. By pressing the pressing piece against the left side wall of the left mounting plate or the right side wall of the right mounting plate of the main body of the heat exchanger assembly, clamping and fixing are realized.

[0014] The prominent effect of the present utility model is:

[0015] Compared with the prior art, it has a simple structure and is convenient to manufacture. It can directly clamp and fix the assembled main body of the heat exchanger assembly without using wire ropes for binding. It can be directly placed into a brazing furnace for brazing. After completion, it can be separated from the main body of the heat exchanger assembly. Its installation and disassembly are convenient, and it can be reused, reducing waste. Description of the drawings:

[0016] Figure 1 is a partial structural schematic diagram of the present utility model;

[0017] Figure 2 is Figure 1 the exploded schematic diagram of

[0018] Figure 3 is a partial side view of the present utility model with a side connecting plate and other components installed to clamp the main body of the heat exchanger assembly;

[0019] Figure 4 is Figure 3 the partial top view of

[0020] Figure 5 is Figure 4 a partially enlarged view of Specific implementation manner:

[0021] For the embodiment, see Figures 1 to 2 As shown, a clamping fixture for a flat tube heat exchanger assembly includes a main body 100 of the heat exchanger assembly. The main body 100 of the heat exchanger assembly includes a flat tube main part coiled in an S shape to form a rectangular shape. In all the longitudinal parts extending forward and backward of the flat tube main part, slots are formed between adjacent two longitudinal parts. The heat dissipation fins are inserted into the corresponding slots and clamped between the adjacent two longitudinal parts. And at the outer side walls on the left and right sides of the flat tube main part, two fixing plates are provided, and the heat dissipation fins are clamped between the two fixing plates and the outer side walls on the left and right sides of the flat tube main part;

[0022] The above structure is the assembled main body 100 of the heat exchanger assembly. At this time, all its components are detachable and not completely fixed. Therefore, subsequently, it is necessary to ensure that all components are firmly clamped to facilitate subsequent brazing fixation.

[0023] In this embodiment, the fixture is a cross-shaped frame body composed of two horizontally extending long strips 10 and two vertically extending long strips 20 extending forward and backward. At the left and right ends of the two horizontally extending long strips 10, vertically extending parts 11 extending downward are formed. The main body 100 of the heat exchanger assembly is located between the two vertically extending parts 11 on the left side and the two vertically extending parts 11 on the right side and is clamped between the vertically extending parts 11 on the left side and the vertically extending parts 11 on the right side (since its flat tube main part is coiled in an S shape, there is a certain elasticity between its adjacent two longitudinal parts. Therefore, the main body 100 of the heat exchanger assembly can be clamped between the two vertically extending parts 11 on the left side and the two vertically extending parts 11 on the right side), realizing clamping and fixation. It does not need to be tied with steel wires or the like, and the installation effect is good. After subsequent brazing, only tools such as hammers are needed to gently tap the cross-shaped frame body to detach and separate it from the welded main body 100 of the heat exchanger assembly. Subsequently, the cross-shaped frame body can be reused, and the use effect is good, reducing waste.

[0024] This fixture is suitable for clamping and installing the main body 100 of the heat exchanger assembly where the distance between the two vertically extending parts 11 on the left side and the two vertically extending parts 11 on the right side is slightly smaller than the width of the main body 100 of the heat exchanger assembly.

[0025] Furthermore, first slots 12 extending downward are formed at the left and right parts of the top surface of the horizontal long sheet 10, and second slots 21 are formed at the front and rear parts of the bottom surface of the two vertical long sheets 20. The first slots 12 and the corresponding second slots 21 are vertically aligned. The lower part of the first slot 12 is inserted into the corresponding second slot 21 and clamped between the front and rear inner side walls of the corresponding second slot 21. The upper part of the second slot 21 is inserted into the corresponding first slot 12 and clamped between the left and right inner side walls of the corresponding first slot 12.

[0026] The two vertical long sheets 20 and the two horizontal long sheets 10 are fixed by welding.

[0027] The bottom surfaces of the two vertical long sheets 20 and the two horizontal long sheets 10 are flush.

[0028] The top surfaces of the two vertical long sheets 20 and the two horizontal long sheets 10 are flush.

[0029] When the width of the main body 100 of the heat exchanger assembly to be installed is much smaller than the distance between the vertical extension part 11 on the left side and the two vertical extension parts 11 on the right side, an auxiliary structure needs to be installed, such as Figures 3 to 5 As shown, this auxiliary structure includes a positioning sleeve 30, and the positioning sleeve 30 is clamped at the lower part of each vertical extension part 11 (when not needed, the positioning sleeve 30 can be directly removed from the corresponding vertical extension part 11);

[0030] A side connection plate 31 extending front and rear is fixed between the positioning sleeves 30 on the two vertical extension parts 11 on the left side or the two vertical extension parts 11 on the right side;

[0031] An adjustable pressing piece 32 is installed on the side connection plate 31, and the pressing piece 32 presses against the left side wall of the left mounting plate or the right side wall of the right mounting plate of the main body 100 of the heat exchanger assembly.

[0032] Adjusting screw connection through holes are formed at the front and rear parts of the middle part of the side connection plate 31. The screw part of the adjusting bolt 33 is screwed into the corresponding adjusting screw connection through hole. The inner end of the screw part of the adjusting bolt 33 extends out of the inner side wall of the corresponding side connection plate 31 and is movably connected with the pressing piece 32. A locking nut 34 is screwed on the screw part of the adjusting bolt 33, and the locking nut 34 presses against the wall surface of the corresponding side connection plate 31.

[0033] During installation, the main body 100 of the heat exchanger assembly is placed between the two side connection plates 31. Then, loosen the lock nut 34 and rotate the adjusting bolt 33 so that the pressing piece 32 presses against the left side wall of the left mounting plate or the right side wall of the right mounting plate of the main body 100 of the heat exchanger assembly, thereby realizing the clamping and fixing of the main body 100 of the heat exchanger assembly. Then, rotate the lock nut 34 so that the corresponding end face of the lock nut 34 presses against the wall surface of the corresponding side connection plate 31, preventing the adjusting bolt 33 from rotating. After subsequent brazing, only need to loosen the lock nut 34 and the adjusting bolt 33 to disassemble and separate them from the brazed main body 100 of the heat exchanger assembly, and they can be reused, with good use effect and reduced waste.

[0034] Finally, the above embodiments are only used to illustrate the present invention, rather than limiting the present invention. Those of ordinary skill in the relevant technical field can still make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention, and the patent protection scope of the present invention shall be defined by the claims.

Claims

1. A flat tube heat exchanger assembly clamping fixture, comprising a heat exchanger assembly body (100), characterized in that: Two horizontal long pieces (10) extending left and right and two longitudinal long pieces (20) extending front and back form a cross-shaped frame, and the left and right ends of the two horizontal long pieces (10) are both formed with vertical extension parts (11) extending downward, and the heat exchanger component body (100) is located between the two vertical extension parts (11) on the left and the two vertical extension parts (11) on the right, and is clamped between the vertical extension parts (11) on the left and the vertical extension parts (11) on the right.

2. The flat tube heat exchanger assembly clamp according to claim 1, characterized in that: The left and right parts of the top surface of the transverse long piece (10) are both formed with a first slot (12) extending downward, and the front and rear parts of the bottom surfaces of the two longitudinal long pieces (20) are both formed with a second slot (21), the first slot (12) and the corresponding second slot (21) are aligned up and down, the lower part of the first slot (12) is inserted into the corresponding second slot (21) and clamped between the front and rear inner side walls of the corresponding second slot (21), and the upper part of the second slot (21) is inserted into the corresponding first slot (12) and clamped between the left and right inner side walls of the corresponding first slot (12).

3. The flat tube heat exchanger assembly clamp according to claim 2, characterized in that: The two longitudinal long pieces (20) and the two transverse long pieces (10) are welded and fixed.

4. The flat tube heat exchanger assembly clamp according to claim 2, characterized in that: The bottom surfaces of the two longitudinal long pieces (20) and the two transverse long pieces (10) are flush with each other.

5. The flat tube heat exchanger assembly clamp according to claim 1, characterized in that: The top surfaces of the two longitudinal long pieces (20) and the two transverse long pieces (10) are flush with each other.

6. The flat tube heat exchanger assembly clamp according to claim 1, characterized in that: A positioning sleeve (30) is clamped at the lower part of the vertical extension portion (11); A side connecting plate (31) extending forward and backward is fixed between the positioning sleeves (30) on the two vertical extensions (11) on the left or the two vertical extensions (11) on the right; An adjustable pressing plate (32) is installed on the side connecting plate (31), and the pressing plate (32) is pressed against the left side wall of the left mounting plate or the right side wall of the right mounting plate of the heat exchanger assembly body (100).

7. The flat tube heat exchanger assembly clamp according to claim 6, characterized in that: The front and rear parts of the middle part of the side connecting plate (31) are both formed with adjustment screw through holes, and the screw rod portion of the adjustment bolt (33) is screwed into the corresponding adjustment screw through hole, the inner end of the screw rod portion of the adjustment bolt (33) extends out of the inner wall of the corresponding side connecting plate (31) and is movably connected with a clamping plate (32), and a locking nut (34) is screwed on the screw rod portion of the adjustment bolt (33), and the locking nut (34) is pressed against the wall surface of the corresponding side connecting plate (31).

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