Fin lock easy access tool

Abstract

The utility model discloses a fin lock easy to take tool relates to electronic assembly tool technical field, including handle body, the front end and tail end of handle body are installed with detachable guide cone head and baffle ring respectively, the inside hollow chamber of handle body is equipped with, and the installation of push rod is worn in the chamber, the one end of push rod is relatively thin cylindrical tail rod 31, the end of tail rod 31 is fixedly installed with top hat, and the front end of push rod is relatively thin cylindrical push head, and the push head is equipped with return spring, and the bottom of guide cone head is installed with pressure head subassembly through screw, the middle of pressure head subassembly and push head coaxial direction are opened and have through -hole, and the end of pressure head subassembly has the working surface of adapting fin lock ear position, solve the technical problem that traditional screwdriver or tweezers removes fin lock inconvenient operation and easy to slip and scratch PCB board.

Description

Technical Field

[0001] This utility model relates to the field of electronic assembly tool technology, specifically to a tool for easily removing heat sink latches. Background Technology

[0002] In the current process of installing and removing heatsinks, they are typically secured to the motherboard using spring clips, metal spring clips, plastic clips, or wire clips. During installation and removal, operators usually use tweezers, screwdrivers, or simply press the clip lugs with their fingers. While these tools are common in daily use, they present numerous inconveniences and potential risks.

[0003] First, existing tools are prone to slipping in confined spaces, causing scratches on the PCB board or surrounding components. This not only increases the difficulty of operation but may also damage the equipment. Furthermore, disassembly typically requires two hands, and it's difficult to align the force direction correctly, resulting in low efficiency and inconsistent application.

[0004] Secondly, the pressing points of existing tools do not match the clip lugs, easily causing localized stress concentration and damaging the plastic fasteners. Furthermore, in some cases where the chassis or heatsink fins obstruct the view, traditional tools cannot reach the clips, further increasing the difficulty of disassembly and assembly. Because these tools have low precision and poor repeatability, it is difficult to achieve consistent process quality on the production line. Therefore, a more precise and convenient tool is urgently needed to solve these problems. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a tool for easily removing heat sink latches.

[0006] The objective of this utility model can be achieved through the following technical solutions: A heat sink latch removal tool includes a handle body. A detachable guide cone and a retaining ring are respectively installed at the front and rear ends of the handle body. The handle body has a hollow cavity inside, and a push rod is installed through the cavity. One end of the push rod is a relatively thin cylindrical tail rod 31, and a top cap is fixedly installed at the end of the tail rod 31. The front end of the push rod is a relatively thin cylindrical push head, and a return spring is fitted around the push head. A pressure head assembly is installed at the bottom end of the guide cone by screws. A through hole is opened in the middle of the pressure head assembly in the same direction as the push head. The end of the pressure head assembly has a working surface adapted to the heat sink latch ear position.

[0007] As a further embodiment of this utility model: the outer surface of the handle body is covered with an anti-slip layer with multiple textures.

[0008] As a further embodiment of this utility model: a travel limit tube is fitted between the pusher and the return spring.

[0009] As a further embodiment of this utility model: the outer surface of the tail rod 31 is provided with an external thread, the inner surface of the retaining ring is provided with an internal thread, the tail rod 31 passes through the retaining ring and the external thread of the tail rod 31 is screwed into the internal thread of the retaining ring.

[0010] As a further embodiment of this utility model: the end of the tail rod 31 is connected to the top cap by a torque limiter, and the torque limiter is set to a torque range of 0.1~0.4Nm.

[0011] As a further embodiment of this utility model: a magnetic adsorption ring is provided on the outer surface of the pressure head assembly for adsorbing detached metal fasteners or nuts.

[0012] The beneficial effects of this utility model are: (1) By setting a guide cone at the front end of the handle, the pressure head assembly can quickly and accurately position itself in the gaps of the heat sink fins, avoiding the problem of slippage and scratching of the PCB board when using traditional screwdrivers or tweezers. The handle body is made of insulating or antistatic material and covered with an anti-slip layer, which not only meets the ESD protection requirements of the production line, but also improves the operator's grip stability. The push rod, in conjunction with the stroke limit tube and return spring, makes the pushing stroke controllable and can automatically reset, ensuring the repeatability of the disassembly and assembly process and the consistency of the process. At the same time, the pressure head assembly can be quickly replaced with a hook-shaped, groove-shaped or spherical structure to adapt to different heat sink clip ear positions.

[0013] (2) By optimizing the linear pressing method of the push rod into a threaded transmission structure driven by a rotating top cap, the thrust output is more uniform, avoiding damage to the motherboard caused by excessive instantaneous force. A torque limiter is set between the tail rod and the top cap, which automatically slips when the axial thrust reaches the preset range, ensuring stable and controlled force and preventing overpressure damage to the clips or PCB. Thus, this utility model realizes one-handed, low-damage, and controllable force disassembly and assembly operations, significantly improving the disassembly and assembly efficiency and safety of the heat sink latches, and is suitable for electronic product production, repair, and rework scenarios. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the structure where the PCB board and the latching lugs lock together. Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a structural schematic diagram of the overall structure of this utility model; In the diagram: 1. Handle body; 11. Anti-slip layer; 12. Retaining ring; 2. Guide cone; 3. Push rod; 31. Tail rod; 32. Top cap; 33. Push head; 34. Stroke limit tube; 35. Return spring; 4. Pressure head assembly; 41. Magnetic adsorption ring; 36. Torque limiter; 100. PCB board; 101. Snap-on ear; Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1 The diagram shows the structure of the PCB board and the locking clip. Operators usually use tweezers, screwdrivers or directly press the locking clip with their fingers and then push it outward, which can easily cause the tool to slip and cause scratches on the PCB board or surrounding components.

[0018] Example 1: Please refer to Figure 2-3 As shown, this utility model is an easy-to-remove tool for heat sink latches, including a handle body 1, with a guide cone 2 at the front end of the handle body 1. The handle body 1 is made of insulating or antistatic material (the surface resistance of the antistatic material is 10 ohms). 6 ~10 9 Ω, meeting the ESD requirements of the production line), and the guide cone 2 is a detachable part. The guide cone 2 is shaped like a tapered frustum or a cone, with a front end diameter of less than 5 mm. The guide cone 2 is used to position and guide in the gap of the heat sink fins; at the same time, the outer surface of the handle body 1 is covered with a multi-textured anti-slip layer 11 to increase the friction during operation and prevent the hand from slipping.

[0019] The handle body 1 has a cylindrical hollow cavity inside, through which a push rod 3 is installed. The middle part of the push rod 3 is a slender cylindrical shape corresponding to the shape and size of the hollow cavity inside the handle body 1, allowing the push rod 3 to slide back and forth within the handle body 1. One end of the push rod 3 is a relatively thin cylindrical tail rod 31, with a top cap 32 fixedly installed at the end of the tail rod 31. A retaining ring 12 is fixedly installed at the tail end of the handle body 1, through which the tail rod 31 passes. The diameter of the inner hole of the retaining ring 12 matches the diameter of the tail rod 31. The retaining ring 12 restricts the movement of the push rod 3 within the handle body 1. The front end of the push rod 3 is a relatively thin cylindrical push head 33, with a travel limit tube 34 fitted onto the outer surface of the push head 33 to limit the movement of the push rod. The maximum pushing stroke of the pusher head 33 is described. The stroke limit tube 34 is fitted with a return spring 35. The bottom horizontal surface of the guide cone head 2 is screwed with a pressure head assembly 4. There are multiple replaceable pressure head assemblies 4. Different pressure head assemblies 4 have working surfaces (which can be hook-shaped, groove-shaped, or spherical) at their ends that are adapted to the heat sink locking lugs. The working surfaces can be coated with nylon or anodized rounded corners to reduce stress. The middle of the pressure head assembly 4 is coaxial with the pusher head 33 and the pusher head 33 can pass through the through hole to push out the buckle when disassembling it. Optionally, a magnetic adsorption ring 41 can be installed at the front end of the handle body 1 or on the outer surface of the pressure head assembly 4 to adsorb detached metal fasteners or nuts.

[0020] Example 2: In the above example, during operation, the operator holds the handle body 1 and presses down on the pressure head assembly 4 aligned with the latch ear position through the guide cone 2, causing the latch ear position to retract. Then, the operator pushes the unlocked latch out of the hole by pressing the top cap 32 with their thumb. However, in some assemblies, the gap between the heatsink latch and the hole is small, and the latch fits too tightly with the hole. In this case, the operator needs to press the top cap 32 with more force to push the latch out. At this time, the pressure is difficult for the operator to control. If the force is too great, it can easily damage the motherboard. Therefore, in this example, the pressure on the top cap is... The method of pushing the push rod 3 is improved by using a rotating cap 32 with a threaded drive structure to complete the pushing action. Specifically, the outer surface of the tail rod 31 at the end of the push rod 3 is set with an external thread structure, while the inner surface of the retaining ring 12 is set with an internal thread structure. The tail rod 31 passes through the inner surface of the retaining ring 12 and engages with the internal thread of the retaining ring 12. This improves the original direct pressing method to a method of rotating the cap 32 to push the push rod 3, resulting in a more uniform force when the push head 33 at the end of the push rod 3 pushes out of the buckle, avoiding instantaneous impact and further reducing the risk of damage to the PCB. Preferably, a torque limiter 36 can be set between the tail rod 31 and the cap 32, with a recommended torque range of 0.1~0.4 N*m. When the axial thrust reaches the set value during the rotation of the cap 32, slippage occurs, thus better preventing overpressure.

[0021] The working principle of this utility model is as follows: During operation, the operator holds the handle body 1 and presses down on the pressure head aligned with the latch ear position through the guide cone head 2, causing the latch ear position to retract inward. Then, by pressing the top cap 32 with the thumb or by rotating the top cap 32, the push head 33 is pushed outward, thereby unlocking the latch ear position. After unlocking, the thumb is released or the pressure head is retracted by rotating the top cap 32 in the opposite direction. The return spring 35 assists in resetting. The entire process can be completed with one hand, avoiding the damage to the PCB caused by the traditional method of unlocking the latch by using a screwdriver or pliers. This tool has the advantages of precise guidance, controllable force, one-handed operation, compatibility, and safety and reliability, and is suitable for the production and repair of electronic products.

[0022] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A fin locker easy access tool characterized by, The device includes a handle body (1), with a detachable guide cone (2) and a retaining ring (12) installed at the front and rear ends of the handle body (1), respectively. The handle body (1) has a hollow cavity inside, and a push rod (3) is installed inside the cavity. One end of the push rod (3) is a relatively thin cylindrical tail rod (31), and a top cap (32) is fixedly installed at the end of the tail rod (31). The front end of the push rod (3) is a relatively thin cylindrical push head (33), and a return spring (35) is fitted on the outside of the push head (33). A pressure head assembly (4) is installed at the bottom end of the guide cone (2) by screws. A through hole is opened in the middle of the pressure head assembly (4) in the same direction as the push head (33). The end of the pressure head assembly (4) has a working surface adapted to the heat sink locking ear position.

2. A heat sink lock catch easy access tool according to claim 1, wherein, The handle body (1) is covered with a non-slip layer (11) with multiple textures.

3. A heat sink lock catch easy access tool according to claim 1, wherein, A travel limit tube (34) is fitted between the pusher (33) and the return spring (35).

4. A heat sink clip easy access tool according to claim 2 or 3, wherein, The tail rod (31) has an external thread on its outer surface and the retaining ring (12) has an internal thread on its inner surface. The tail rod (31) passes through the retaining ring (12) and the external thread of the tail rod (31) is screwed into the internal thread of the retaining ring (12).

5. A heat sink clip easy access tool according to claim 4, wherein, The end of the tail rod (31) is connected to the top cap (32) by a torque limiter (36), which is set to a torque range of 0.1~0.4Nm.

6. A heat sink clip easy access tool according to claim 5, wherein, A magnetic adsorption ring (41) is installed on the outer surface of the pressure head assembly (4) for adsorbing detached metal fasteners or nuts.

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