A fin retractable radiator

Abstract

The present invention relates to the field of radiator technology, and in particular to a fin-retractable radiator, comprising a base, a heat-absorbing copper sheet, fixed fins, and an air-cooling portion arranged on the left side of the upper end of the base, wherein a through slot is provided in the middle of the base, the heat-absorbing copper sheet is installed below the through slot, and a C-shaped copper tube in contact with the heat-absorbing copper sheet is installed above the through slot. In the present invention, by improving the original radiator structure, a C-shaped copper tube, a movable fin, a fixed sheet, a heat-absorbing strip, a retractable part, and a limit buckle cover are provided on the radiator, and the contact area between the fin and the air can be dynamically adjusted according to the actual working temperature of the radiator, and the thermal balance between the heat output of the chip and the heat dissipation of the radiator can be dynamically maintained, thereby reducing the problem of processing speed drop and heat loss aging caused by continuous heat storage during chip operation, thereby effectively improving the heat dissipation effect and efficiency of the radiator.

Description

Technical Field

[0001] The present invention relates to the technical field of radiators, and in particular to a fin-retractable radiator. Background Art

[0002] A radiator is a device or instrument that transfers heat generated by machinery or other equipment during operation to avoid affecting its normal operation. Common radiators can be divided into various types based on the heat dissipation method, including air cooling, heat pipe cooling, liquid cooling, semiconductor cooling, and compressor cooling.

[0003] At present, most of the fins of the heat sinks on the market are fixed in one piece between the base and the heat-absorbing copper plate. It is difficult to dynamically adjust the contact area between the fins and the air according to the actual working temperature of the heat sink. When the chip temperature is higher than the normal range and works continuously, it will lead to a decrease in chip processing efficiency and even thermal damage and aging problems. In view of this, it is particularly important to design and manufacture a heat sink that can dynamically adjust the contact area between the fins and the air according to the actual working temperature. Summary of the Invention

[0004] The purpose of the present invention is to propose a fin-retractable heat sink in order to solve the problem that most existing heat sink fins are of an integrated structure and it is difficult to dynamically adjust the contact area between the fins and the air according to the actual working temperature of the heat sink.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A fin-retractable radiator comprises a base, a heat-absorbing copper sheet, a fixed fin, and an air-cooling portion arranged on the left side of the upper end of the base. A through slot is opened in the middle of the base, the heat-absorbing copper sheet is installed below the through slot, a C-shaped copper tube in contact with the heat-absorbing copper sheet is installed above the through slot, the fixed fin is installed between the base and the upper end of the C-shaped copper tube, a movable fin is movably installed at the right end of the fixed fin, and a retractable portion for adjusting the lateral spacing between the fixed fin and the movable fin is provided between the C-shaped copper tube and the movable fin.

[0007] As a further description of the above technical solution:

[0008] The telescopic portion includes a heat-absorbing strip fixed above the two vertical ends of the C-shaped copper tube, a second vertical block fixed to the left side of the upper end of the heat-absorbing strip, a fixing plate fixed to the right side of the upper end of the movable fin, a first vertical block fixed to the right side of the lower end of the fixing plate, and a telescopic member installed horizontally between the first vertical block and the second vertical block.

[0009] As a further description of the above technical solution:

[0010] The front and rear sides of the upper end of the base are fixedly connected with a limiting buckle cover in the shape of an inverted L-shaped structure and fitted with the upper end surface of the fixing plate.

[0011] As a further description of the above technical solution:

[0012] The heat absorbing strip and the second vertical block are made of pure silver, copper alloy or aluminum alloy.

[0013] As a further description of the above technical solution:

[0014] The telescopic member is made of an aluminum alloy material in a spring shape.

[0015] As a further description of the above technical solution:

[0016] The telescopic member is made of a wave-shaped aluminum alloy material.

[0017] As a further description of the above technical solution:

[0018] The telescopic member is made of an aluminum alloy material in a cylindrical or cylindrical shape.

[0019] As a further description of the above technical solution:

[0020] The air cooling part comprises an air shell installed on the left side of the upper end of the base, a fan installed inside the air shell, and a power line installed on the fan and extending through the fan to the outside of the air shell.

[0021] As a further description of the above technical solution:

[0022] The right end of the wind shell is open and faces the fixed fins. An insulating cover sheet is pasted between the right end of the wind shell and the gap between the fixed fins.

[0023] As a further description of the above technical solution:

[0024] Three spring screws distributed in a triangle are installed on the base through threaded engagement.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0026] In the present invention, the original radiator structure is improved, and a C-shaped copper tube, movable fins, fixed plates, heat-absorbing strips, telescopic parts and limit buckle covers are arranged on the radiator. The problem of the chip can be absorbed by the heat-absorbing copper plate and conducted upward to the C-shaped copper tube and the fixed fins respectively. At the same time, the fixed fins will indirectly conduct the heat to the movable fins. The heat-absorbing strips on the C-shaped copper tube can efficiently conduct the heat to the telescopic parts. When the telescopic parts are heated, they can expand and move outward, thereby driving the movable fins to move laterally on the right side of the fixed fins, thereby increasing the contact area between the fins and the air as a whole. This structure can dynamically adjust the contact area between the fins and the air according to the actual working temperature of the radiator, and can dynamically maintain the thermal balance between the heat output of the chip and the heat dissipation of the radiator, reducing the continuous heat storage when the chip is working, resulting in a decrease in processing speed and the occurrence of heat loss and aging problems, thereby effectively improving the heat dissipation effect and efficiency of the radiator. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic structural diagram of a retractable fin heat sink proposed by the present invention;

[0028] Figure 2 This is a schematic structural diagram of the first embodiment of the telescopic member of the present invention;

[0029] Figure 3 Schematic diagram of the structure of the second embodiment of the telescopic member in the present invention;

[0030] Figure 4 Schematic diagram of the structure of the third embodiment of the telescopic member in the present invention;

[0031] Figure 5 It is a three-dimensional explosion schematic diagram of the present invention;

[0032] Figure 6 for Figure 5 A three-dimensional forward-looking schematic diagram of .

[0033] Legend:

[0034] 1. Base; 101. Through slot; 102. Spring screw; 2. Heat-absorbing copper sheet; 3. C-shaped copper tube; 4. Fixed fin; 5. Moving fin; 501. Fixed sheet; 502. First vertical block; 6. Heat-absorbing strip; 601. Second vertical block; 7. Fan housing; 8. Fan; 801. Power cord; 9. Limit buckle cover; 10. Insulation cover; 11. Telescopic piece. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] See also Figure 1-6 The present invention provides a technical solution: a fin retractable radiator, comprising a base 1, a heat-absorbing copper sheet 2, a fixed fin 4 and an air-cooling part arranged on the left side of the upper end of the base 1. Three spring screws 102 distributed in a triangle are installed on the base 1 through threaded engagement. A through slot 101 is opened in the middle of the base 1. The heat-absorbing copper sheet 2 is installed below the through slot 101. A C-shaped copper tube 3 that fits the heat-absorbing copper sheet 2 is installed above the through slot 101. The fixed fin 4 is installed between the base 1 and the upper end of the C-shaped copper tube 3. A movable fin 5 is movably installed at the right end of the fixed fin 4. A retractable part for adjusting the lateral spacing between the fixed fin 4 and the movable fin 5 is provided between the C-shaped copper tube 3 and the movable fin 5.

[0037] The telescopic portion includes a heat absorbing strip 6 fixed above the two vertical ends of the C-shaped copper tube 3, a second vertical block 601 fixed to the left side of the upper end of the heat absorbing strip 6, a fixing plate 501 fixed to the right side of the upper end of the movable fin 5, a first vertical block 502 fixed to the right side of the lower end of the fixing plate 501, and a telescopic member 11 installed horizontally between the first vertical block 502 and the second vertical block 601.

[0038] The front and rear sides of the upper end of the base 1 are fixedly connected with a limit buckle cover 9 in the shape of an inverted L-shaped structure and fitted with the upper end surface of the fixed plate 501. The setting of the limit buckle cover 9, on the one hand, can limit the movable fin 5 and the fixed plate 501 along the Y axis and the Z axis between the base 1 and the fixed fin 4, thereby improving the stability of the telescopic movement of the movable fin 5 in the X-axis direction between the base 1 and the fixed fin 4. On the other hand, the telescopic part 11 can be wrapped between the base 1, the heat-absorbing copper sheet 2, the fixed fin 4 and the movable fin 5, thereby improving the effect of the telescopic adjustment of the telescopic part 11 due to heat.

[0039] The heat absorbing strip 6 and the second vertical block 601 are made of pure silver, copper alloy or aluminum alloy. Preferably, red copper is used to make the heat absorbing strip 6 and the second vertical block 601 because its material cost is between that of pure silver and aluminum alloy, and its thermal conductivity is also between that of pure silver and aluminum alloy, so it has the highest cost-effectiveness in the actual production process.

[0040] Specifically, Figure 2 As shown in FIG. 1 , a first embodiment of the telescopic member 11 is shown. The telescopic member 11 is made of an aluminum alloy material in a spring shape.

[0041] Specifically, such as Figure 3 FIG. 1 shows a second embodiment of the telescopic member 11 . The telescopic member 11 is made of a corrugated aluminum alloy material.

[0042] Specifically, such as Figure 4 FIG. 1 shows a third embodiment of the telescopic member 11 . The telescopic member 11 is made of an aluminum alloy material in a cylindrical or cylindrical shape.

[0043] The telescopic parts 11 of the above three shapes are made of aluminum alloy materials with a good thermal expansion coefficient, so the telescopic parts 11 can have obvious telescopic deformation after being heated. Among the telescopic parts 11 of the above three structures, the telescopic effect of the wavy telescopic part 11 is better than the spring-shaped telescopic part 11. At the same time, the telescopic effect of the spring-shaped telescopic part 11 is better than the cylindrical or cylindrical telescopic part 11. When actually designing, producing and manufacturing this type of radiator structure, one of the above three shapes of telescopic parts 11 can be selected as the telescopic driving parts of the fixed fins 4 and the movable fins 5 according to the actual layout of the radiator and the size and distribution between the fixed fins 4 and the movable fins 5, so as to realize zero-power consumption telescopic adjustment operation of the heat sink fins.

[0044] Specifically, such as Figure 1-6 As shown, the air cooling part includes an air casing 7 installed on the left side of the upper end of the base 1, a fan 8 installed on the inside of the air casing 7, and a power cord 801 installed on the fan 8 and extending to the outside of the air casing 7. The setting of the power cord 801 facilitates the connection operation between the fan 8 and the external circuit. The right end of the air casing 7 is open and faces the fixed fins 4. An insulating cover 10 is pasted between the right end of the air casing 7 and the gap between the fixed fins 4. The connecting gap between the air casing 7 and the fixed fins 4 can be sealed, so that the external cold air can all enter the air casing 7 through the cavity formed by the fixed fins 4 and the movable fins 5.

[0045] Working principle: When in use, after applying thermal grease on the heat-absorbing copper sheet 2, the heat-absorbing copper sheet 2 can be attached to the top of the chip, and the base 1 can be fixed on the PCB through the spring screw 102. Finally, the power cord 801 is installed on the power port of the PCB to complete the installation of the radiator. During daily use, the heat-absorbing copper sheet 2 can efficiently absorb the heat generated by the chip and transfer it upward evenly to the C-shaped copper tube 3, fixed fins 4 and movable fins 5 of the base 1. The heat-absorbing strip 6 on the C-shaped copper tube 3 can efficiently absorb heat and conduct it to the telescopic part 11 between the first vertical block 502 and the second vertical block 601. Since the telescopic part 11 is made of aluminum alloy material with a high thermal expansion coefficient, it can expand outward after being heated, thereby increasing the first vertical block 5 02 and the horizontal spacing between the second vertical block 601. At this time, the movable fin 5 can move laterally on the right side of the fixed fin 4 under the joint action of the telescopic part 11 and the limit buckle cover 9, thereby increasing the direct contact area between the fin and the air as a whole. Therefore, when the fan 8 is working, the air can be sucked into the wind shell 7 through the cavity between the fixed fin 4 and the movable fin 5. The hot air after sufficient heat absorption can be discharged through the wind shell 7 under the action of air flow. The higher the temperature, the better the expansion effect of the telescopic part 11. When the telescopic part 11 returns to room temperature, the telescopic part 11 will also be reset to its initial state. Therefore, the spacing between the fixed fin 4 and the movable fin 5 can be adjusted according to the actual working temperature, thereby dynamically adjusting the area of ​​the heat dissipation fins to adapt to work at different temperatures.

[0046] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A fin retractable heat sink comprising a base (1), a heat-absorbing copper sheet (2), fixed fins (4) and an air-cooling portion arranged on the left side of the upper end of the base (1), characterized in that: A through slot (101) is provided in the middle of the base (1), the heat-absorbing copper sheet (2) is installed below the through slot (101), a C-shaped copper tube (3) in contact with the heat-absorbing copper sheet (2) is installed above the through slot (101), the fixed fin (4) is installed between the base (1) and the upper end of the C-shaped copper tube (3), a movable fin (5) is movably installed at the right end of the fixed fin (4), and a telescopic portion for adjusting the horizontal spacing between the fixed fin (4) and the movable fin (5) is provided between the C-shaped copper tube (3) and the movable fin (5); The telescopic portion comprises a heat absorbing strip (6) fixed above the two vertical ends of the C-shaped copper tube (3), a second vertical block (601) fixed to the left side of the upper end of the heat absorbing strip (6), a fixing plate (501) fixed to the right side of the upper end of the movable fin (5), a first vertical block (502) fixed to the right side of the lower end of the fixing plate (501), and a telescopic member (11) installed transversely between the first vertical block (502) and the second vertical block (601); The front and rear sides of the upper end of the base (1) are fixedly connected with a limit buckle cover (9) in the shape of an inverted L-shaped structure and in contact with the upper end surface of the fixing plate (501); The air cooling unit comprises an air housing (7) mounted on the left side of the upper end of the base (1), a fan (8) mounted on the inner side of the air housing (7), and a power line (801) mounted on the fan (8) and extending through the air housing (7) to the outside.

2. The retractable fin heat sink according to claim 1, characterized in that: The heat absorbing strip (6) and the second vertical block (601) are made of pure silver, copper alloy or aluminum alloy.

3. The retractable fin heat sink according to claim 1, characterized in that: The telescopic member (11) is made of an aluminum alloy material in a spring shape.

4. The retractable fin heat sink according to claim 1 or 3, characterized in that: The telescopic member (11) is made of an aluminum alloy material having a wavy shape.

5. The retractable fin heat sink according to claim 1 or 3, characterized in that: The telescopic member (11) is made of an aluminum alloy material in a cylindrical shape.

6. The retractable fin heat sink according to claim 1, characterized in that: The right end of the wind shell (7) is open and faces the fixed fin (4), and an insulating cover sheet (10) is pasted between the right end of the wind shell (7) and the gap between the fixed fin (4).

7. The retractable fin heat sink according to claim 1, characterized in that: Three spring screws (102) distributed in a triangular shape are mounted on the base (1) through threaded engagement.

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