Bimetal composite radiator and installation method thereof

Abstract

The invention relates to the technical field of radiators, and provides a bimetallic composite radiator and an installation method thereof.The bimetallic composite radiator comprises a base and a shell installed on the top of the base; limiting structures are installed at the corners of the shell correspondingly, copper pipe pieces are arranged on the two sides of the bottom end of the shell correspondingly, a cooling fan is installed in the middle of the shell, and a filter screen is arranged on the top of the cooling fan. By arranging a limiting structure and fixing an elastic piece at the bottom of a limiting piece, a limiting column is directly inserted, a clamping groove slides downwards to be rapidly extruded and clamped with the elastic piece, installation can be achieved through pressing, on the contrary, a twisting block is rotated to 90 degrees, the clamping groove is separated from the elastic piece, disassembly can be achieved through half-circle rotation, and therefore the effect that the radiator is convenient to disassemble and install is achieved; the radiator can be quickly disassembled and checked, the maintenance difficulty is reduced, the radiator has the damping effect through cooperation of components such as springs at the connecting positions, vibration transmission is reduced, and the possibility of fatigue cracks or fractures caused by long-term vibration is reduced.

Description

Technical Field

[0001] This invention relates to the field of radiator technology, and in particular to a bimetallic composite radiator and its installation method. Background Technology

[0002] Bimetallic composite radiators are heat dissipation devices that combine the advantages of two metal materials. Common types include copper-aluminum composite radiators and steel-aluminum composite radiators. Copper-aluminum composite radiators are made of copper and aluminum, typically with copper tubes inside and aluminum heat dissipation fins on the outside. Copper has excellent thermal conductivity, enabling it to quickly transfer heat from the heat source; aluminum is known for its lightweight and corrosion resistance, and its heat dissipation fins can increase the heat dissipation area and improve heat dissipation efficiency.

[0003] To address this, patent CN211174316U discloses a bimetallic composite radiator, comprising a copper base and a heat dissipation mechanism. Support columns are provided on both sides of the upper surface of the copper base. A fixing ring is provided at the upper end of each support column. A connecting rod is provided on the inner wall of the fixing ring. A mounting plate is provided at the other end of the connecting rod. The heat dissipation mechanism is located on the upper surface of the mounting plate and consists of a small motor, a connecting shaft, a first fixing frame, several first aluminum plates, and several second aluminum plates. The small motor is located on the upper surface of the mounting plate, and the output end of the small motor is connected to the connecting shaft on the lower surface of the mounting plate. The upper and lower ends of the connecting shaft are movably mounted on the mounting plate and the copper base, respectively. This invention has a simple structure and reasonable design. The small motor provides a rapid rotational force, increasing the airflow rate and effectively increasing the contact area with the air, thus improving the heat dissipation effect.

[0004] The heat sinks described above use a small motor to provide rapid rotational force, which improves heat dissipation. However, when installing the heat sinks, bolts are used for fixing. If there is a problem with the internal components of the heat sink, it is necessary to disassemble and reinstall them for a long time, which may damage the surface of the connected electronic equipment, increase maintenance costs, and reduce maintenance efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a bimetallic composite radiator and its installation method to solve the problem of inconvenient disassembly and assembly of existing bimetallic composite radiators.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a bimetallic composite radiator and its installation method, comprising a base and a shell mounted on top thereof; a limiting structure is installed at each corner of the shell, copper tubes are provided on both sides of the bottom end of the shell, a cooling fan is installed in the middle of the shell, and a filter screen is provided on the top of the cooling fan; the limiting structure includes a connecting block installed at the corner of the shell, a cavity is installed on the top of the connecting block, a torsion block is fixed at the top of the cavity, a spring is sleeved on the top of the connecting block, and telescopic rods are installed on both sides of the bottom end of the cavity.

[0007] Preferably, fixing plates are welded to both sides of the base, and limiting plates are provided at the corners of the base. The base is fixed to the electronic device by the fixing plates, and then the heat sink is disassembled and assembled from the base. This prevents direct contact between the heat sink and the electronic device during disassembly and maintenance, thus avoiding wear on the surface of the electronic device.

[0008] Preferably, a piston is mounted on the top of the connecting block, and small holes are provided on both sides of the piston. A limit post is fixed to the bottom of the connecting block. The cooperation between the piston and the small holes allows hydraulic oil to flow through the small holes, generating resistance, which causes the spring to slowly compress and reset when absorbing vibration, thus achieving a vibration reduction effect.

[0009] Preferably, the bottom of the limiting post is provided with a slot on both sides, and the bottom of the limiting piece on the outer side of the slot is provided with an elastic piece, and the elastic piece and the slot form an engaging structure.

[0010] Preferably, the top of the outer casing is provided with heat dissipation fins, and connecting plates are welded to the corners of the outer casing. The cavity is installed at the bottom of the connecting plates. The heat dissipation fins dissipate the conducted heat into the surrounding environment through air convection and radiation, thereby achieving the effect of heat dissipation.

[0011] Preferably, sliders are fixed at the corners of the filter screen, and grooves are provided on the inner wall of the outer shell of the sliders.

[0012] Preferably, a slide rail is provided on one side of the slide groove, and the slide rail and the slider form a sliding structure.

[0013] Preferably, the bottom of the outer shell of the copper tube is provided with a dovetail groove, the outer surface of the copper tube is provided with a buffer layer, and the copper tubes are symmetrically distributed about the center line of the outer shell.

[0014] Preferably, the connection between the copper tube sheet and the dovetail groove is wavy, and the buffer layer is made of copper alloy.

[0015] A method for installing a bimetallic composite heat sink includes the following steps:

[0016] S1. Fixed bracket: Use bolts to pass through the fixing plate and rotate to lock it, so as to firmly fix the base to the electronic equipment;

[0017] S2. Install the heat sink: Place the outer shell in the groove of the base, press down so that the limiting post aligns with the limiting piece and passes through the elastic piece. The pointed end of the limiting post lifts up the elastic piece and unfolds it. When the slot moves down to the bottom of the elastic piece, the rebound force of the elastic piece instantly locks the slot in place and fixes it. The bottom of the outer shell contacts the heat dissipation area of ​​the electronic device.

[0018] S3. Radiator operation: When the equipment is working, the cooling fan starts to accelerate air circulation and enhance the heat dissipation effect. The copper tubes at the bottom of the casing quickly absorb heat and transfer it to the casing. The casing then distributes the heat to the heat dissipation fins on the entire surface, and dissipates it into the surrounding environment through air convection and radiation.

[0019] Compared with the prior art, the beneficial effects of this utility model are: when the bimetallic composite radiator fails, it can be quickly disassembled for inspection and maintenance, simplifying the operation. At the connection point, the radiator has a shock absorption effect through the cooperation of components such as springs and pistons, reducing the possibility of fatigue cracks or fractures. At the same time, a buffer layer with a wave shape is designed at the interface between the copper tube and the base, which can disperse the concentration of thermal stress and reduce deformation caused by thermal expansion differences.

[0020] By setting a limiting structure, an elastic piece is fixed at the bottom of the limiting piece. When assembling the outer shell and the base, the elastic piece is pushed open by directly inserting the limiting post, and the slot slides down and quickly squeezes and engages with the elastic piece, so that it can be installed by pressing. Conversely, rotating the twisting block to 90° makes the slot rotate to the inside away from the elastic piece, pushing the elastic piece open, so that it can be disassembled by rotating half a turn. This makes the heat sink easy to disassemble and install, allowing for quick disassembly and inspection, reducing maintenance difficulty, and avoiding wear on the surface of electronic equipment when disassembling and assembling with the base, thus reducing maintenance costs.

[0021] Furthermore, the cavity is filled with hydraulic oil. During the heat dissipation process, the spring can absorb the vibration generated by the operation of electronic equipment and cooling fan. A piston is set on the top of the connecting block. When the spring is compressed, the piston moves upward at the same time. Through the resistance of the flow between the hydraulic oil and the small hole, the spring slowly rebounds, thereby achieving the effect of shock absorption of the radiator, reducing vibration transmission, and reducing the possibility of fatigue cracks or fractures caused by long-term vibration.

[0022] By incorporating a buffer layer, the interface between the copper tube and the base is designed in a wavy shape. This wavy interface facilitates the uniform transfer of heat, reduces thermal resistance, and improves heat dissipation efficiency. Furthermore, the wavy design can disperse stress concentration and reduce fatigue damage caused by long-term use or temperature changes. At the same time, a buffer layer made of copper alloy is provided at the interface between the copper tube and the base. As an elastic material, copper alloy can act as a buffer between the two metals, absorbing and dispersing thermal stress caused by the difference in thermal expansion coefficients. Moreover, its elastic properties better adapt to temperature changes and mechanical vibrations, maintaining stable performance.

[0023] Furthermore, the copper tube and the dovetail groove are connected by a dovetail groove interlocking method, which achieves mechanical interlocking between the two metals through shape matching. This effectively resists shearing and peeling forces, prevents relative movement between metal layers, and helps improve the fatigue resistance and service life of the radiator. Attached Figure Description

[0024] Figure 1 This is a top-view three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below;

[0026] Figure 3 This is a top-view three-dimensional structural diagram of the shell of the present invention in a disassembled state;

[0027] Figure 4 This is a three-dimensional structural diagram of the shell of the present invention viewed from below in a disassembled state;

[0028] Figure 5 This is a three-dimensional structural diagram of the base of the present invention;

[0029] Figure 6 This is a three-dimensional structural diagram of the spring in its split state according to the present invention;

[0030] Figure 7 This is a three-dimensional structural diagram of the cavity in the open state of the present invention;

[0031] Figure 8 For the present invention Figure 2 A magnified three-dimensional structural diagram of a portion of point A in the middle;

[0032] Figure 9 For the present invention Figure 3 A magnified three-dimensional structural diagram of a portion of point B in the middle.

[0033] The following are the annotations in the figure: 1. Base; 11. Fixing plate; 12. Limiting plate; 2. Limiting structure; 21. Connecting block; 211. Limiting post; 212. Piston; 213. Small hole; 214. Slot; 22. Elastic plate; 23. Torsion block; 24. Cavity; 25. Telescopic rod; 26. Spring; 3. Outer shell; 31. Heat dissipation fins; 32. Connecting plate; 4. Filter screen; 41. Slide groove; 42. Slide rail; 43. Slider; 5. Cooling fan; 6. Copper tube; 61. Dovetail groove; 62. Buffer layer. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1-9 The present invention provides a bimetallic composite heat sink and its installation method, including a base 1 and a shell 3 installed on its top; a limiting structure 2 is installed at each corner of the shell 3, and a cooling fan 5 is installed in the middle of the shell 3; the limiting structure 2 includes a connecting block 21 installed at the corner of the shell 3, a cavity 24 is installed at the top of the connecting block 21, and a torsion block 23 is fixed at the top of the cavity 24; a limiting post 211 is fixed at the bottom of the connecting block 21, and slots 214 are provided on both sides of the bottom of the limiting post 211; and elastic pieces 22 are installed at the bottom of the limiting pieces 12 on the outer side of the slots 214, forming an engaging structure between the elastic pieces 22 and the slots 214; fixing pieces 11 are welded on both sides of the base 1, and limiting pieces 12 are provided at each corner of the base 1; connecting pieces 32 are welded at each corner of the shell 3, and the cavity 24 is installed at the bottom of the connecting piece 32.

[0036] Reference Figures 4-8As shown, when installing the radiator, align the limiting posts 211 at the corners of the outer shell 3 with the limiting plates 12 respectively, press down so that the limiting posts 211 pass through the limiting plates 12 and enter the elastic plates 22. The pointed ends of the limiting posts 211 lift up the elastic plates 22 and open them. When the slots 214 at the bottom of the limiting posts 211 move down to the bottom of the elastic plates 22, the rebound force of the elastic plates 22 instantly engages with the slots 214 and clamps them in place. Conversely, when disassembly is required, simply rotate the torsion block 23 to 90° to rotate the limiting posts 211 connected to it, so that the slots 214 move away from the inner side of the elastic plates 22. Under the rotational force of the limiting posts 211, the elastic plates 22 are pushed open. Then, simply lift the outer shell 3 upwards to disassemble it, which facilitates disassembly and installation. Due to the special shape design of the slots 214, when the elastic plates 22 clamp it, the limiting posts 211 cannot rotate without the action of external force, which enhances the firmness of the fixation.

[0037] A spring 26 is fitted on the top of the connecting block 21, and telescopic rods 25 are installed on both sides of the bottom end of the cavity 24. A piston 212 is installed on the top of the connecting block 21, and small holes 213 are provided on both sides of the piston 212.

[0038] Reference Figure 6 and Figure 7 As shown, when the radiator is working, the electronic equipment and the cooling fan 5 will generate movement vibrations during operation. These vibrations are transmitted to the connection between the limiting plate 12 and the connecting plate 32, which puts pressure on the spring 26. At the same time, it drives the piston 212 at the top of the connecting block 21 to move upward inside the cavity 24. The cavity 24 is filled with hydraulic oil. When the piston 212 moves, the oil at the top flows from the small hole 213 to the bottom. When the spring 26 rebounds, the oil at the bottom returns to the top from the small hole 213. Since the small hole 213 has a small diameter, the piston 212 slowly resets due to resistance, thereby achieving the effect of shock absorption, reducing vibration transmission, and extending the service life of the radiator. In addition, the telescopic rod 25 can realize the distance compensation between the connecting block 21 and the cavity 24, and at the same time, it can prevent axial rotation between them, ensuring that the torsion block 23 can drive the limiting post 211 to rotate when it rotates.

[0039] Copper tubes 6 are provided on both sides of the bottom of the outer shell 3, heat dissipation fins 31 are provided on the top of the outer shell 3, dovetail grooves 61 are provided on the bottom of the outer shell 3 outside the copper tubes 6, and buffer layers 62 are provided on the outside of the copper tubes 6. The copper tubes 6 are symmetrically distributed about the center line of the outer shell 3, and the connection between the copper tubes 6 and the dovetail grooves 61 is wavy. The material of the buffer layer 62 is copper alloy.

[0040] Reference Figure 4 and Figure 9As shown, when the heat sink is working, the copper tube 6 quickly absorbs the heat generated by the electronic device and transfers it to the housing 3. The housing 3 then distributes the heat to the heat dissipation fins 31 on the entire surface, and dissipates it to the surrounding environment through air convection and radiation. The interface where the copper tube 6 and the dovetail groove 61 are joined is designed to be wavy to increase the contact area, disperse stress concentration, and reduce deformation caused by thermal expansion differences. A buffer layer 62 is provided between the two metals. The material of the buffer layer 62 is copper alloy. Copper alloy is an elastic material that serves as a buffer layer to absorb thermal expansion differences and reduce interface stress. The dovetail groove 61 and the copper tube 6 are set to be an interlocking dovetail groove shape, which enhances the bonding strength through physical interlocking.

[0041] A filter screen 4 is provided on the top of the cooling fan 5. A slider 43 is fixed at each corner of the filter screen 4. A groove 41 is provided on the inner wall of the outer shell 3 of the slider 43. A slide rail 42 is provided on one side of the groove 41. A sliding structure is formed between the slide rail 42 and the slider 43.

[0042] Reference Figure 4 and Figure 5 As shown, when disassembling and installing the filter screen 4, first align the sliders 43 at the four corners of the filter screen 4 with the slide grooves 41, press them down to the bottom of the slide grooves 41, then rotate and slide along the slide rails 42 to the innermost side, rotate 45° away from the slide grooves 41, so that the sliders 43 and the slide rails 42 are locked together. When the cooling fan 5 is in use, the filter screen 4 can effectively prevent dust from entering. At the same time, when disassembling, flip the filter screen 4 so that the sliders 43 slide along the slide rails 42 to the slide grooves 41, and then lift it up to remove the filter screen 4, which is convenient for cleaning and simplifies the operation.

[0043] A method for installing a bimetallic composite heat sink includes the following steps:

[0044] S1. Fixing bracket: Use bolts to pass through the fixing plate 11 and rotate to lock it, so as to firmly fix the base 1 to the electronic equipment;

[0045] S2. Install the heat sink: Place the outer shell 3 in the groove of the base 1 and press down so that the limiting post 211 aligns with the limiting piece 12 and passes through the elastic piece 22. The pointed end of the limiting post 211 lifts up the elastic piece 22 and unfolds. When the slot 214 moves down to the bottom of the elastic piece 22, the rebound force of the elastic piece 22 instantly engages and clamps the slot 214, and the bottom of the outer shell 3 contacts the heat dissipation area of ​​the electronic device.

[0046] S3. Heat sink operation: When the equipment is working, the cooling fan 5 is activated to accelerate air circulation and enhance the heat dissipation effect. The copper tube fins 6 at the bottom of the outer casing 3 quickly absorb heat and transfer it to the outer casing 3. The outer casing 3 then disperses the heat to the heat dissipation fins 31 on the entire surface, and dissipates it into the surrounding environment through air convection and radiation.

[0047] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bimetallic composite heat sink, comprising a base (1) and a shell (3) mounted on top of the base (1); characterized in that: limiting structures (2) are mounted at the corners of the shell (3), copper pipe pieces (6) are arranged on both sides of the bottom end of the shell (3), and a heat dissipation fan (5) is mounted at the middle position of the shell (3), and a filter screen (4) is arranged on top of the heat dissipation fan (5); the limiting structure (2) comprises a connecting block (21) mounted at the corner of the shell (3), a cavity (24) is mounted on top of the connecting block (21), a torsion block (23) is fixed at the top end of the cavity (24), a spring (26) is sleeved on top of the connecting block (21), and telescopic rods (25) are mounted on both sides of the bottom end of the cavity (24).

2. The bimetallic composite heat spreader of claim 1, wherein: fixed pieces (11) are welded on both sides of the base (1), and limiting pieces (12) are arranged at the corners of the base (1).

3. The bimetallic composite heat spreader of claim 1, wherein: a piston (212) is mounted on top of the connecting block (21), small holes (213) are arranged on both sides of the piston (212), and a limiting column (211) is fixed at the bottom of the connecting block (21).

4. The bimetallic composite heat spreader of claim 2, wherein: card slots (214) are arranged on both sides of the bottom of the limiting column (211), elastic pieces (22) are mounted at the bottom of the limiting pieces (12) outside the card slots (214), and a clamping structure is formed between the elastic pieces (22) and the card slots (214).

5. The bimetallic composite heat spreader of claim 1, wherein: heat dissipation fins (31) are arranged on top of the shell (3), connecting pieces (32) are welded at the corners of the shell (3), and the cavity (24) is mounted at the bottom of the connecting piece (32).

6. The bimetallic composite heat spreader of claim 1, wherein: sliding blocks (43) are fixed at the corners of the filter screen (4), and sliding grooves (41) are arranged on the inner walls of the shell (3) outside the sliding blocks (43).

7. The bimetallic composite heat spreader of claim 6, wherein: sliding rails (42) are arranged on one side of the sliding grooves (41), and a sliding structure is formed between the sliding rails (42) and the sliding blocks (43).

8. The bimetallic composite heat spreader of claim 1, wherein: dovetail grooves (61) are arranged at the bottom end of the shell (3) outside the copper pipe pieces (6), buffer layers (62) are arranged outside the copper pipe pieces (6), and the copper pipe pieces (6) are symmetrically distributed about the center line of the shell (3).

9. The bimetallic composite heat spreader of claim 8, wherein: the connection between the copper pipe pieces (6) and the dovetail grooves (61) is in a wave shape, and the material of the buffer layer (62) is copper alloy.

10. A mounting method using the bimetallic composite heat sink of claim 9, comprising the following steps, characterized by: S1. Fixing the support: rotate and lock the base (1) and the electronic device firmly by screwing through the fixed pieces (11); S2. Installing the heat sink: place the shell (3) in the groove of the base (1), press down so that the limiting column (211) aligns with the limiting piece (12) and passes through the elastic piece (22), the sharp angle at the bottom end of the limiting column (211) lifts and unfolds the elastic piece (22), when the card slot (214) moves down to the bottom of the elastic piece (22), the elastic force of the elastic piece (22) instantly clamps and fixes the card slot (214), and the bottom of the shell (3) contacts the heat dissipation area of the electronic device; S3. Heat sink operation: When the equipment is working, the cooling fan (5) is started to accelerate air circulation and enhance the heat dissipation effect. The copper tube fins (6) at the bottom of the outer shell (3) quickly absorb heat and transfer it to the outer shell (3). The outer shell (3) then disperses the heat to the heat dissipation fins (31) on the entire surface and dissipates it to the surrounding environment through air convection and radiation.

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