An assembly tool for locking an FPGA and a heat sink

Abstract

The utility model relates to an assembly tool for locking FPGA and radiator, and relates to the technical field of electronic device assembly, the mounting frame is fixed on the back side of base respectively, two connecting rods are fixed on the left and right side walls of pressing plate respectively, the both ends of limiting rod are fixed on base and the mounting frame of left side respectively and are movably inserted in the connecting rod of left side, the upper and lower ends of screw rod are respectively screwed and are inserted in the top of mounting frame of right side and base in bearing and are screwed in the connecting rod of right side through screw thread, the upper end of screw rod is fixed in the sleeve of no. One gear, and the lower side of it is engaged with no. Two gear, the driving mechanism is located on base, and the driving mechanism is connected with no. Three pivot, the pressing plate displacement is driven, improves the lifting efficiency of pressing plate, ensures that pressing plate drops even pressure, avoids radiator and FPGA chip and is damaged because of too violent stress, ensures that the installation position of radiator and FPGA chip is aligned, avoids deviation.

Description

Technical Field

[0001] This utility model relates to the field of electronic device assembly technology, specifically to an assembly fixture for locking an FPGA and a heat sink. Background Technology

[0002] In existing technologies, the assembly of FPGA chips and heat sinks typically employs a direct pressing method, where pressure is applied directly to fix the heat sink to the FPGA chip using a pressure plate. However, this method has significant drawbacks: due to the lack of precise guidance and force control during the pressing process, misalignment or displacement between the heat sink and the FPGA chip can easily occur, affecting heat dissipation and even damaging the chip. Furthermore, excessive force during direct pressing can cause structural damage to the FPGA chip or heat sink, reducing product reliability and lifespan. Therefore, a fixture for locking the FPGA to the heat sink is proposed. Utility Model Content

[0003] The purpose of this utility model is to address the defects and deficiencies of the existing technology by providing an assembly fixture for locking FPGA and heat sink, which significantly improves the efficiency of the pressure plate tilting and rising, prevents the pressure plate from shifting due to accidental loosening during the pressing process, and improves the lifting efficiency of the pressure plate; ensures uniform pressure when the pressure plate descends, avoids damage to the heat sink and FPGA chip due to excessive force, and ensures that the installation positions of the heat sink and FPGA chip are aligned to avoid misalignment.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a base, a chip mounting base, a heat sink mounting base, and a pressure plate; the chip mounting base is provided on the base, and the heat sink mounting base is fixed on the base and located above the chip mounting base; a pressure plate is provided above the heat sink mounting base; four guide holes are provided on the pressure plate; and two handles are provided on the base. It also includes: two mounting brackets, each fixed to the rear side of the base; two connecting rods fixed to the left and right side walls of the pressure plate; two ends of a limiting rod fixed to the base and the left mounting bracket, respectively, and movably inserted into the left connecting rod; the upper and lower ends of a screw are screwed through bearings and pass through the upper part of the right mounting bracket and the base, respectively, and are threaded into the right connecting rod; a first gear, which is sleeved and fixed to the upper end of the screw, and a second gear meshes below it; a first rotating shaft is inserted and fixed in the middle of the second gear, and the rear end of the first rotating shaft is connected to the right mounting bracket through a bearing and a plate; the second rotating shaft is located to the right of the first rotating shaft, and support rods are screwed to the front and rear of the second rotating shaft through bearings, and the support rods are fixed to the base; the second rotating shaft is connected to the first rotating shaft through a belt drive wheel assembly; the third rotating shaft is connected to the second rotating shaft through a bevel gear pair; and a drive mechanism located on the base and connected to the third rotating shaft.

[0005] Preferably, the drive mechanism comprises: a housing fixed to a base; several third gears, each meshing with the others within the housing, the diameters of which increase from back to front; the third gears are screwed onto the inner wall of the housing via shafts and bearings; a fourth rotating shaft connected to the rearmost third gear, passing through the housing and then screwed onto the third shaft via a bevel gear pair; and a fifth rotating shaft connected to the frontmost third gear, which, after passing through the left side wall of the housing, is fixed with a hand-operated mechanism.

[0006] Preferably, several ball grooves are provided on the right side wall of the hand-tightening device. A limiting ball is embedded in the ball groove at the frontmost side. A tube is fixed on the limiting ball. A rod is movably sleeved on the other end of the tube. The rod is fixed on the outer shell. A spring is sleeved on the rod. The two ends of the spring are fixed to the tube and the outer shell, respectively.

[0007] Preferably, the guide tube is embedded in the guide hole of the pressure plate; the upper end of the guide tube is provided with a flared mouth.

[0008] Preferably, several identification layers are respectively disposed inside the guide holes on the pressure plate, and the numbers on the identification layers are arranged in sequence; Preferably, the rubber pad is fixed to the bottom of the pressure plate, and the guide tube is movably inserted inside the rubber pad.

[0009] Compared with the prior art, the beneficial effects of this utility model are: 1. Equipped with a drive mechanism, it significantly improves the efficiency of the pressure plate tilting and rising, prevents the pressure plate from shifting due to accidental loosening during the pressing process, and improves the lifting efficiency of the pressure plate; 2. Ensure that the pressure plate is applied evenly when it descends to avoid damage to the heat sink and FPGA chip due to excessive force. Ensure that the installation positions of the heat sink and FPGA chip are aligned to avoid misalignment. Attached Figure Description

[0010] Figure 1 This is the southwest isometric view of this utility model.

[0011] Figure 2 yes Figure 1 Enlarged view of part A in the image.

[0012] Figure 3 This is a schematic diagram of the structure of the pressure plate when it is raised in this utility model.

[0013] Figure 4 This is a cross-sectional view of the outer shell of this utility model.

[0014] Figure 5 yes Figure 4 Enlarged view of part B in the image.

[0015] Figure 6 This is a schematic diagram of the guide tube in this utility model.

[0016] Explanation of reference numerals in the attached diagram: Base 1, Chip mounting base 2, Heat sink mounting base 3, Pressure plate 4, Guide hole 5, Handle 6, Mounting bracket 7, Connecting rod 8, Limiting rod 9, Screw 10, Gear No. 1 11, Gear No. 2 12, Shaft No. 1 13, Shaft No. 2 14, Support rod 15, Shaft No. 3 16, Drive mechanism 17, Housing 17-1, Gear No. 3 17-2, Shaft No. 4 17-3, Shaft No. 5 17-4, Hand tightening 17-5, Ball groove 17-6, Limiting ball 17-7, Insertion tube 17-8, Insertion rod 17-9, Spring 17-10, Guide tube 18, Identification layer 19, Rubber pad 20. Detailed Implementation

[0017] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] The specific implementation method adopts the following technical solution: Please see Figure 1-6 This embodiment includes a base 1, a chip mounting base 2, a heat sink mounting base 3, a pressure plate 4, and a handle 6; the base 1 is provided with a chip mounting base 2, the chip mounting base 2 is provided with a heat sink mounting base 3, and the heat sink mounting base 3 is fixed on the base 1; the pressure plate 4 is provided above the heat sink mounting base 3; the pressure plate 4 has four guide holes 5; the base 1 is provided with two handles 6 on the left and right sides. It also includes: Mounting bracket 7, there are two mounting brackets 7, and they are respectively fixed on the rear side of the base 1; There are two connecting rods 8, which are fixed on the left and right side walls of the pressure plate 4 respectively. The limiting rod 9 is movably inserted into the connecting rod 8 on the left side, and the two ends of the limiting rod 9 are respectively fixed on the base 1 and the mounting bracket 7 on the left side; The screw 10 is threaded into the connecting rod 8 on the right side, and the lower end of the screw 10 is threaded into the base 1 through a bearing; the upper end of the screw 10 is threaded through the mounting bracket 7 on the right side through a bearing. Gear 11 is sleeved and fixed on the upper end of screw 10; Gear 12 meshes below gear 11, and shaft 13 is inserted and fixed in the middle of gear 12. The rear end of shaft 13 is connected to the mounting bracket 7 on the right side through bearing and plate. The second rotating shaft 14 is located to the right of the first rotating shaft 13. The front and rear of the second rotating shaft 14 are connected to the support rod 15 by bearings, and the support rod 15 is fixed on the base 1. The second rotating shaft 14 is connected to the first rotating shaft 13 through a belt drive wheel assembly. The third rotating shaft 16 is connected to the second rotating shaft 14 via a bevel gear pair; Drive mechanism 17, which is mounted on base 1 and connected to the third rotating shaft 16; drive mechanism 17 includes: The outer casing 17-1 is fixed on the base 1; There are several No. 3 gears 17-2, which are meshed with each other and are located inside the outer casing 17-1. The diameter of the No. 3 gears 17-2 increases from back to front. The No. 3 gears 17-2 are screwed onto the inner wall of the outer casing 17-1 through shafts and bearings. The fourth rotating shaft 17-3 is connected to the third gear 17-2 on the last side. After passing through the outer shell 17-1, the fourth rotating shaft 17-3 is screwed to the third rotating shaft 16 through a bevel gear pair. The fifth rotating shaft 17-4 is connected to the foremost third gear 17-2. After the fifth rotating shaft 17-4 moves through the left side wall of the outer shell 17-1, a hand-tightening device 17-5 is fixed thereon. Several ball grooves 17-6 are opened on the right side wall of the hand-tightening device 17-5. A limiting ball 17-7 is embedded in the foremost ball groove 17-6. An insertion tube 17-8 is fixed on the limiting ball 17-7. An insertion rod 17-9 is movably sleeved on the other end of the insertion tube 17-8. The insertion rod 17-9 is fixed on the outer shell 17-1. A spring 17-10 is sleeved on the insertion rod 17-9. The two ends of the spring 17-10 are fixed to the insertion tube 17-8 and the outer shell 17-1, respectively. The guide tube 18 is embedded in the guide hole 5 on the pressure plate 4; the upper end of the guide tube 18 is provided with a flared mouth. The number of identification layers 19 is several, and they are respectively located inside the guide holes 5 on the pressure plate 4, and the numbers of the identification layers 19 are arranged in sequence. The rubber pad 20 is fixed to the bottom of the pressure plate 4 by adhesive, and the guide tube 18 is movably inserted inside the rubber pad 20.

[0019] When using this utility model, turning the hand-crank 17-5 causes the fifth rotating shaft 17-4 to rotate, which in turn drives several third gears 17-2 to transmit rotation. The diameters of the third gears 17-2 are arranged from back to front in an increasing order, so that a slight turn of the hand-crank 17-5 can drive the last third gear 17-2 to rotate several times, causing the fourth rotating shaft 17-3, the third rotating shaft 16, the second rotating shaft 14, and the first rotating shaft 13 to transmit rotation, which in turn drives the second gear 12 and the first gear 11 to rotate, causing the screw 10 to rotate. Under the action of the limiting rod 9, This causes the pressure plate 4 to tilt and rise, facilitating the placement of the FPGA chip in the chip mounting bracket 2 and then the heat sink in the heat sink mounting bracket 3. Turning the hand-tightening 17-5 back causes the pressure plate 4 to descend and press the rubber pad 20 onto the heat sink for fixation, preventing damage to the heat sink and FPGA chip caused by excessive force when the pressure plate 4 is pressed onto the heat sink. Under the action of the spring 17-10, the limiting ball 17-7 is embedded in the ball groove 17-6 and locked by the hand-tightening 17-5. The mounting bolts are guided and installed through the guide tube 18.

[0020] Compared with the prior art, the beneficial effects of this utility model are: 1. Through the diameter gradient design of No. 5 rotating shaft 17-4 and No. 3 gear 17-2, a slight turn of the hand-twisting 17-5 can drive the No. 3 gear 17-2 on the last side to rotate quickly, which significantly improves the efficiency of the pressure plate 4 tilting and rising, and improves the lifting efficiency of the pressure plate 4. 2. By utilizing the linkage structure of screw 10, limit rod 9 and pressure plate 4, it is ensured that pressure plate 4 is applied evenly when it descends, and the pressure is buffered by rubber pad 20 to prevent the heat sink and FPGA chip from being damaged due to excessive force. 3. A locking mechanism using spring 17-10 and limit ball 17-7 is used, and hand-tightening 17-5 is used to fix it to prevent displacement of pressure plate 4 due to accidental loosening during the pressing process; 4. The guide tube 18 is designed to precisely guide the mounting bolts, ensuring that the heat sink and the FPGA chip are aligned and preventing misalignment.

[0021] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An assembly fixture for locking an FPGA and a heat sink, comprising a base (1), a chip mounting base (2), a heat sink mounting base (3), and a pressure plate (4); the base (1) is provided with the chip mounting base (2), and the heat sink mounting base (3) is fixed on the base (1) and positioned above the chip mounting base (2); the pressure plate (4) is provided above the heat sink mounting base (3); the pressure plate (4) has four guide holes (5); the base (1) has two handles (6) on the left and right sides; characterized in that, It also includes: a mounting bracket (7), of which there are two, and each is fixed on the rear side of the base (1); two connecting rods (8) are fixed on the left and right side walls of the pressure plate (4); the two ends of the limiting rod (9) are fixed on the base (1) and the mounting bracket (7) on the left side and are movably inserted into the connecting rod (8) on the left side; the upper and lower ends of the screw (10) are screwed through the bearings and pass through the upper part of the mounting bracket (7) on the right side and the base (1) respectively, and are screwed into the connecting rod (8) on the right side by threads. Gear No. 1 (11) is sleeved and fixed on the upper end of screw (10), and gear No. 2 (12) meshes below it; a shaft No. 1 (13) is inserted and fixed in the middle of gear No. 2 (12), and the rear end of shaft No. 1 (13) is connected to the mounting bracket (7) on the right side through bearings and plates; shaft No. 2 (14) is located on the right side of shaft No. 1 (13), and support rods (15) are screwed to the front and rear of shaft No. 2 (14) through bearings, and support rods (15) are fixed on the base (1); shaft No. 2 (14) is connected to shaft No. 1 (13) through belt drive wheel assembly; shaft No. 3 (16) is connected to shaft No. 2 (14) through bevel gear pair; drive mechanism (17) is located on the base (1), and drive mechanism (17) is connected to shaft No. 3 (16).

2. The assembly fixture for locking an FPGA and a heat sink according to claim 1, characterized in that: The drive mechanism (17) includes: a housing (17-1) fixed on a base (1); a third gear (17-2) consisting of several gears that mesh with each other inside the housing (17-1), with the diameter of the gears increasing from back to front; the gears (17-2) being screwed onto the inner wall of the housing (17-1) via shafts and bearings; and a fourth rotating shaft (17-3) connected to the third gear (17-2) on the rearmost side. After passing through the housing (17-1), the fourth rotating shaft (17-3) is screwed onto the third rotating shaft (16) via a bevel gear pair. The No. 5 rotating shaft (17-4) is connected to the No. 3 gear (17-2) at the front. After the No. 5 rotating shaft (17-4) moves through the left side wall of the outer shell (17-1), it is fixed with a hand screw (17-5).

3. The assembly fixture for locking an FPGA and a heat sink according to claim 2, characterized in that: Several ball grooves (17-6) are provided on the right side wall of the hand-tightening (17-5). The ball groove (17-6) at the frontmost side is fitted with a limiting ball (17-7). A tube (17-8) is fixed on the limiting ball (17-7). A rod (17-9) is movably sleeved on the other end of the tube (17-8). The rod (17-9) is fixed on the outer shell (17-1). A spring (17-10) is sleeved on the rod (17-9). The two ends of the spring (17-10) are fixed to the tube (17-8) and the outer shell (17-1) respectively.

4. The assembly fixture for locking an FPGA and a heat sink according to claim 1, characterized in that: The guide tube (18) is embedded in the guide hole (5) on the pressure plate (4); the upper end of the guide tube (18) is provided with a flared mouth.

5. The assembly fixture for locking an FPGA and a heat sink according to claim 1, characterized in that: Several identification layers (19) are respectively located inside the guide holes (5) on the pressure plate (4), and the numbers of the identification layers (19) are arranged in sequence.

6. The assembly fixture for locking an FPGA and a heat sink according to claim 4, characterized in that: The rubber pad (20) is fixed to the bottom of the pressure plate (4), and the guide tube (18) is movably inserted inside the rubber pad (20).

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