Backflow type heat dissipation block

Abstract

The utility model relates to the technical field of heat dissipation blocks, in particular to a backflow type heat dissipation block which comprises a heat dissipation pipe and two assembly frames, the inner wall of each assembly frame is fixedly connected with a plurality of heat dissipation fins, the heat dissipation pipe is located between the two assembly frames, and the heat dissipation fins are all attached to the heat dissipation pipe. Compared with the prior art, the radiator has the advantages that the radiating pipe and the radiating fins are detached, gaps among the radiating fins can be cleaned conveniently, the radiating pipe can be detached and replaced independently, the whole radiating block does not need to be replaced, unnecessary waste cannot be caused, and after the radiating pipe is detached, the radiating fins can be replaced independently, so that the radiating efficiency is greatly improved. When the heat dissipation fins are assembled, a new heat dissipation pipe can be assembled between the two assembling frames, the pressing rods are placed in the grooves, then the first splicing frame and the second splicing frame are connected to the two ends of the heat dissipation pipe in a sleeving mode, and the heat dissipation fins and the heat dissipation pipe can be assembled through bolts until the positioning pins move into the positioning grooves, so that rapid disassembly and assembly between the heat dissipation fins and the heat dissipation pipe can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation blocks, in particular to a reflux heat dissipation block. Background Art

[0002] The reflux heat sink is a commonly used radiator in automobiles. The automobile radiator consists of three parts: the water inlet chamber, the water outlet chamber and the radiator core. The coolant flows in the radiator core, and the air passes outside the radiator. The hot coolant cools down due to the heat dissipation to the air, and the cold air heats up due to the heat dissipated by the coolant.

[0003] For example, a reflux heat sink with publication number CN205503254U is provided with a primary heat sink layer and a secondary heat sink layer. Through the setting of the double-layer heat sink layer, gradient cooling can be formed. At the same time, according to the different positions of the liquid pipe and the design of the liquid flow speed, the slow flow rate at the bend is perfectly utilized for rapid cooling. A cassette is provided on the side, which can be easily fixed and also convenient for disassembly and replacement.

[0004] The above-mentioned reflux heat sink still has the following shortcomings in actual use: the above-mentioned heat sink adopts a prismatic heat sink welded on the outer wall of the heat pipe. Although it can significantly increase the surface area of ​​the heat pipe, scale and impurities will accumulate inside the heat pipe after long-term use, which will lead to blockage of the heat pipe. If cleaning cannot solve the problem, the heat pipe needs to be replaced. During replacement, since the heat pipe is welded together with the prismatic heat sink, it needs to be replaced as a whole, which will cause unnecessary waste. Therefore, a reflux heat sink is needed to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0006] Therefore, one purpose of the present invention is to provide a reflux heat sink to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0007] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a reflux heat sink, including a heat sink and two assembly frames, the inner wall of each assembly frame is fixedly connected with a plurality of heat sink fins, the heat sink is located between the two assembly frames, and the plurality of heat sink fins are fitted with the heat sink, and a first splicing frame and a second splicing frame are respectively provided at both ends of the heat sink, the first splicing frame and the second splicing frame are symmetrically distributed on both sides of the assembly frame, the first splicing frame and the second splicing frame are fixedly connected to the assembly frame by bolts, and the sides of the first splicing frame and the second splicing frame are slidably connected with positioning pins, a pressure rod is fixedly connected between the two positioning pins, and the pressure rod is fitted with the heat sink fins.

[0008] Preferably, any of the above schemes is that the sides of the first splicing frame and the second splicing frame are both provided with connecting holes, the sides of the assembly frame are fixedly connected with connecting rods, and the diameters of the connecting rods and the connecting holes are equal.

[0009] Preferably, any of the above schemes is that positioning grooves are provided on the sides of the first splicing frame and the second splicing frame, and the positioning pins are slidably connected to the first splicing frame and the second splicing frame through the positioning grooves.

[0010] Preferably, any of the above schemes is provided with an avoidance groove on the side of the first splicing frame, and the two ports of the heat dissipation pipe are slidably connected to the first splicing frame through the avoidance groove.

[0011] Preferably, any of the above schemes has grooves formed on the top surfaces of a plurality of the heat dissipation fins, and the pressure rod is slidably connected to the heat dissipation fins via the grooves.

[0012] Preferably, any of the above schemes is that a through hole is formed through the side of the assembly frame, a plurality of the through holes are arranged in a linear array on the side of the assembly frame, and a plurality of the through holes are arranged alternately with a plurality of heat sink fins.

[0013] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0014] When it is necessary to replace the heat pipe, the connecting bolts between the assembly frame and the first splicing frame and the second splicing frame can be removed, and the first splicing frame and the second splicing frame can be pulled outward until the two are separated from the heat pipe, and the lock of the pressure rod and the assembly frame can be released. The two assembly frames can then be removed, and the heat pipe and the heat fins can be separated, which is not only convenient for cleaning the gaps between the heat fins, but also allows the heat pipe to be disassembled and replaced separately. There is no need to replace the heat sink as a whole, which can prevent unnecessary waste. After the heat pipe is disassembled, a new heat pipe can be assembled between the two assembly frames, and the pressure rod is placed inside the groove, and the first splicing frame and the second splicing frame are then sleeved on both ends of the heat pipe until the locating pin moves into the locating groove and then assembled with bolts, thereby realizing quick disassembly and assembly between the heat fins and the heat pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the assembly of the utility model;

[0016] Figure 2 It is a schematic diagram of the exploded view structure of the assembly of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the second splicing frame of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the assembly frame of the utility model.

[0019] In the figure: 1-heat dissipation pipe, 2-assembly frame, 3-heat dissipation fin, 4-first splicing frame, 5-second splicing frame, 6-positioning pin, 7-pressure rod, 8-connecting hole, 9-connecting rod, 10-positioning groove, 11-avoidance groove, 12-groove, 13-through hole. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings, but the protection scope of the utility model is not limited to the following.

[0021] like Figures 1 to 4 As shown, a reflux heat sink comprises a heat dissipation tube 1 and two assembly frames 2, the inner wall of each assembly frame 2 is fixedly connected with a plurality of heat dissipation fins 3, the heat dissipation tube 1 is located between the two assembly frames 2, the plurality of heat dissipation fins 3 are all fitted with the heat dissipation tube 1, a first splicing frame 4 and a second splicing frame 5 are respectively provided at both ends of the heat dissipation tube 1, the first splicing frame 4 and the second splicing frame 5 are symmetrically distributed on both sides of the assembly frame 2, the first splicing frame 4 and the second splicing frame 5 are fixedly connected with the assembly frame 2 by bolts, the sides of the first splicing frame 4 and the second splicing frame 5 are slidably connected with positioning pins 6, a pressure rod 7 is fixedly connected between the two positioning pins 6, and the pressure rod 7 is fitted with the heat dissipation fins 3.

[0022] As an optional technical solution of the present utility model, connecting holes 8 are provided on the sides of the first splicing frame 4 and the second splicing frame 5, and a connecting rod 9 is fixedly connected to the side of the assembly frame 2. The diameter of the connecting rod 9 is equal to that of the connecting hole 8. The assembly frame 2 is connected to the first splicing frame 4 and the second splicing frame 5 through the connecting rod 9, so that the assembly frame 2 can be installed more firmly.

[0023] As an optional technical solution of the utility model, positioning grooves 10 are provided on the sides of the first splicing frame 4 and the second splicing frame 5, and the positioning pins 6 are slidably connected to the first splicing frame 4 and the second splicing frame 5 through the positioning grooves 10. The heat dissipation fins 3 can be limited by the pressure rod 7, which can ensure that the heat dissipation fins 3 are close to the outer surface of the heat dissipation tube 1, thereby ensuring the thermal conductivity of the heat dissipation fins 3.

[0024] As an optional technical solution of the present invention, a avoidance groove 11 is opened on the side of the first splicing frame 4, and the two ports of the heat dissipation pipe 1 are slidingly connected to the first splicing frame 4 through the avoidance groove 11. The setting of the avoidance groove 11 can facilitate the assembly of the heat dissipation pipe 1 and the first splicing frame 4.

[0025] As an optional technical solution of the utility model, a plurality of heat sink fins 3 are provided with grooves 12 on their top surfaces, and the pressure rod 7 is slidably connected to the heat sink fin 3 via the grooves 12. The setting of the grooves 12 can limit the pressure rod 7 and prevent the pressure rod 7 from sliding.

[0026] As an optional technical solution of the utility model, a through hole 13 is opened through the side of the assembly frame 2, and a plurality of through holes 13 are linearly arrayed on the side of the assembly frame 2. The plurality of through holes 13 and the plurality of heat sink fins 3 are staggered. The arrangement of the through holes 13 can increase the ventilation performance of the heat sink, thereby improving its heat dissipation.

[0027] A reflux heat sink, the working principle is as follows:

[0028] 1): When the heat pipe 1 needs to be replaced, the connecting bolts between the assembly frame 2 and the first splicing frame 4 and the second splicing frame 5 can be removed, and then the first splicing frame 4 and the second splicing frame 5 can be pulled outward until the two are separated from the heat pipe 1, and the lock on the pressure rod 7 and the assembly frame 2 can be released.

[0029] 2): The two assembly frames 2 are removed, and the heat dissipation tube 1 and the heat dissipation fins 3 can be separated, which is not only convenient for cleaning the gaps between the heat dissipation fins 3, but also allows the heat dissipation tube 1 to be disassembled and replaced separately.

[0030] 3): After the heat pipe 1 is disassembled, a new heat pipe 1 can be assembled between the two assembly frames 2, and the pressure rod 7 can be placed inside the groove 12. Then, the first splicing frame 4 and the second splicing frame 5 are sleeved on both ends of the heat pipe 1 until the positioning pin 6 moves into the positioning groove 10 and then assembled with bolts.

[0031] When the heat dissipation pipe 1 needs to be replaced, the connecting bolts between the assembly frame 2 and the first splicing frame 4 and the second splicing frame 5 can be removed, and the first splicing frame 4 and the second splicing frame 5 can be pulled outward until the two are separated from the heat dissipation pipe 1, and the locking of the pressure rod 7 and the assembly frame 2 can be released. The two assembly frames 2 can be removed, and the heat dissipation pipe 1 and the heat dissipation fin 3 can be separated, which is not only convenient for cleaning the gap between the heat dissipation fins 3, but also the heat dissipation pipe 1 can be disassembled and replaced separately, and there is no need to replace the heat dissipation block as a whole, which can prevent unnecessary waste. After the heat dissipation pipe 1 is disassembled, a new heat dissipation pipe 1 can be assembled between the two assembly frames 2, and the pressure rod 7 is placed in the groove 12, and the first splicing frame 4 and the second splicing frame 5 are then sleeved on the two ends of the heat dissipation pipe 1 until the locating pin 6 moves into the locating groove 10 and then can be assembled with bolts, so as to realize quick disassembly and assembly between the heat dissipation fin 3 and the heat dissipation pipe 1.

Claims

1. A reflux heat sink, characterized in that: The invention comprises a heat dissipation tube (1) and two assembly frames (2), the inner wall of each assembly frame (2) being fixedly connected with a plurality of heat dissipation fins (3), the heat dissipation tube (1) being located between the two assembly frames (2), the plurality of heat dissipation fins (3) being in close contact with the heat dissipation tube (1), a first splicing frame (4) and a second splicing frame (5) being respectively arranged at two ends of the heat dissipation tube (1), the first splicing frame (4) and the second splicing frame (5) being symmetrically distributed on both sides of the assembly frame (2), the first splicing frame (4) and the second splicing frame (5) being fixedly connected with the assembly frame (2) by bolts, the side surfaces of the first splicing frame (4) and the second splicing frame (5) being slidably connected with positioning pins (6), a pressure rod (7) being fixedly connected between the two positioning pins (6), and the pressure rod (7) being in close contact with the heat dissipation fins (3).

2. The reflux heat sink according to claim 1, characterized in that: The sides of the first splicing frame (4) and the second splicing frame (5) are both provided with connecting holes (8), and the side of the assembly frame (2) is fixedly connected with a connecting rod (9), and the diameter of the connecting rod (9) is equal to that of the connecting hole (8).

3. The reflux heat sink according to claim 2, characterized in that: Positioning grooves (10) are provided on the sides of the first splicing frame (4) and the second splicing frame (5), and the positioning pins (6) are slidably connected to the first splicing frame (4) and the second splicing frame (5) through the positioning grooves (10).

4. The reflux heat sink according to claim 3, characterized in that: A side surface of the first splicing frame (4) is provided with an avoidance groove (11), and the two ports of the heat dissipation pipe (1) are slidably connected to the first splicing frame (4) via the avoidance groove (11).

5. The reflux heat sink according to claim 4, characterized in that: A plurality of the heat dissipation fins (3) are provided with grooves (12) on their top surfaces, and the pressure rod (7) is slidably connected to the heat dissipation fins (3) via the grooves (12).

6. The reflux heat sink according to claim 5, characterized in that: A through hole (13) is provided through the side of the assembly frame (2); a plurality of the through holes (13) are arranged in a linear array on the side of the assembly frame (2); and the plurality of the through holes (13) and the plurality of heat dissipation fins (3) are arranged in an alternating manner.

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