A diagonal pin assembly structure for a heat sink

By using an anti-tilting baffle structure during the heat sink assembly process, the installation accuracy problem caused by the pin insertion position tilting is solved, achieving accurate pin installation and reducing the risk of damage.

CN224273621UActive Publication Date: 2026-05-26WEIFANG XINLONGSHENG ELECTRONIC RADIATOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIFANG XINLONGSHENG ELECTRONIC RADIATOR CO LTD
Filing Date
2025-06-20
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

During heat sink assembly, if the pin insertion position is too close to the edge, it may cause the pin to lift up, affecting installation accuracy and potentially damaging the pin.

Method used

The anti-tilting baffle structure, through the cooperation of movable limiting fixtures and punches, limits the height of the heat sink unit in the working state to prevent it from tilting and ensure the pin installation accuracy.

Benefits of technology

It effectively prevents the heat sink unit from being lifted by the force of the punch, improves the pin installation accuracy, and reduces the risk of pin damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model applies to the field of heat sink assembly and provides a diagonal pin assembly structure for heat sinks, including: a limiting fixture, which includes a three-sided positioning structure formed by at least one baffle and an opening for inserting a heat sink unit; a punch, driven by a driver to move closer to or away from the limiting fixture to press the pins to connect to the heat sink unit; and an anti-tilting baffle, movably disposed on one of the baffles, which, in the working state, partially acts on a predetermined position of the heat sink unit and abuts against the upper wall there; the predetermined position is the side of the diagonally connected axis without pin mounting holes and away from the punching end. Thus, this utility model uses the anti-tilting baffle to limit the height of the heat sink. When the heat sink unit is pressed by the force of the punch, the opposite end will be subjected to a reaction force and tilt upwards. This change in state will affect the accuracy of the pin installation.
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Description

Technical Field

[0001] This utility model relates to the field of heat sink assembly, and in particular to a diagonal pin assembly structure for a heat sink. Background Technology

[0002] A heat sink is a device used to dissipate heat. Its working principle involves using its finned structure to increase the contact area with the air, thereby improving the heat exchange rate and optimizing the cooling effect. During installation, a heat sink is typically fixedly connected to the unit that needs cooling, transferring heat to that unit. In electronic heat sinks, they are generally connected to the circuit board that needs cooling via pins. These pins provide a certain degree of support and can serve as temporary positioning during installation. Furthermore, the pins themselves are made of solder, which can be melted and soldered using a soldering iron after being inserted into the corresponding mounting holes.

[0003] Our company provides a new pin-to-heat sink mating structure, which utilizes a direct mating assembly method, such as... Figure 1 and Figure 2 As shown, mounting holes are provided at the diagonal positions of the square heat sink. During installation, the pins are manually pressed and inserted into the mounting holes using the punch.

[0004] However, during the assembly process, because the insertion position of the pin is close to the edge, the force applied when the pin is pressed can easily cause the opposite end of the pin to lift up, which in turn changes the state of the heat sink unit, affecting the pin installation accuracy, or even causing the pin to be damaged because the mounting hole and the pin cannot be matched.

[0005] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] To address the aforementioned deficiencies, the purpose of this utility model is to provide a diagonal pin assembly structure for a heat sink, which can: 1. Limit the height of the heat sink by using an anti-tilting baffle. When the heat sink unit is pressed by the force of the punch, the opposite end will be subjected to a reaction force and tilt upwards. The heat sink unit will be affected by the above-mentioned change in state, thereby affecting the accuracy of pin installation.

[0007] 2. Setting the anti-tilting baffle as a movable structure can reduce its impact on the installation of the radiator unit when in operation.

[0008] To achieve the above objectives, this utility model provides a diagonal pin assembly structure for a heat sink, comprising: a limiting fixture, which includes a three-sided positioning structure formed by at least one baffle and an opening for inserting a heat sink unit; a punch, driven by a driver to approach or move away from the limiting fixture to press the pins to connect to the heat sink unit; and an anti-tilting baffle, movably disposed on one of the baffles, which, in the working state, partially acts on a predetermined position of the heat sink unit and abuts against the upper wall thereon; the predetermined position is the side of the diagonally connected axis without pin mounting holes and away from the punching end.

[0009] According to the diagonal pin assembly structure of the heat sink of this utility model, the anti-tilting baffle is disposed on the baffle near the opening.

[0010] According to the diagonal pin assembly structure of the heat sink of this utility model, the anti-tilting baffle switches between working and non-working states by moving or rotating; when in the non-working state, the anti-tilting baffle is disengaged from the positioning area where the baffle is located.

[0011] According to the diagonal pin assembly structure of the heat sink of this utility model, the anti-tilting baffle is hinged to one of the baffles near the opening.

[0012] According to the diagonal pin assembly structure of the heat sink of this utility model, the rotating connection of the anti-tilting baffle is equipped with an elastic support member that maintains the working state when it is not subjected to external force.

[0013] According to the diagonal pin assembly structure of the heat sink of this utility model, a rack structure is provided on the side wall of the anti-tilting baffle and a slider is slidably installed thereon; when the anti-tilting baffle is hinged on the slider, a gear adapted to mesh with the rack structure is installed on its rotating shaft.

[0014] According to the diagonal pin assembly structure of the heat sink of this utility model, the slider is provided with an opening limiting baffle, which partially covers the opening position; as the slider slides, the opening limiting baffle increases or decreases the positioning area where the baffle is located.

[0015] According to the diagonal pin assembly structure of the heat sink of this utility model, the punch moves in the vertical direction to realize the stamping operation.

[0016] This invention provides a diagonal pin assembly structure for a heat sink, including a positioning fixture for limiting the position of a heat sink unit and a punch for pressing the pins into the positioning fixture. The positioning fixture includes a three-sided positioning structure formed by at least one baffle and an opening for inserting the heat sink unit. When placing the heat sink unit, it can be positioned within the positioning area limited by the three-sided positioning structure via the opening or above. The punch, driven by a driver, moves closer to or away from the positioning fixture to press the pins to connect to the heat sink unit. Therefore, this application does not specifically limit the pressing direction. Since the heat sink unit placed on the positioning fixture is in a horizontal state, the punch moves vertically to achieve the pressing operation. The punch has a placement space for the pins; before pressing, the pins are placed in this space by hand or by other output structures. An anti-tilting baffle is movably disposed on one of the baffles. In operation, the anti-tilting baffle partially acts on a predetermined position of the heat sink unit and abuts against the upper wall at that location, thus limiting its height. When the heat sink unit is pressed by a punch, the opposite end experiences a reaction force and tilts upwards. This change in state affects the accuracy of pin installation. This application can: 1. Limit the height of the heat sink's movement using an anti-tilting baffle. When the heat sink unit is pressed by a punch, the opposite end experiences a reaction force and tilts upwards. This change in state affects the accuracy of pin installation.

[0017] 2. Setting the anti-tilting baffle as a movable structure can reduce its impact on the installation of the radiator unit when in operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the pin installation on the heat sink unit;

[0019] Figure 2 yes Figure 1 A side view diagram;

[0020] Figure 3 This is a schematic diagram of the structure of this utility model;

[0021] Figure 4 This is another schematic diagram of the present invention;

[0022] Figure 5 yes Figure 4 Structural diagram of the inside of the middle slider;

[0023] In the diagram, 01-pin, 02-heat sink unit, 1-limiting fixture, 2-punch, 11-opening, 12-baffle, 3-anti-tilting baffle, 4-elastic support, 5-rack structure, 6-slider, 7-gear, 8-opening limiting baffle. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0025] See Figure 1 , Figure 2 and Figure 3 This invention provides a diagonal pin assembly structure for a heat sink. The structure includes a positioning fixture 1 for limiting the position of the heat sink unit and a punch 2 for pressing the pins into the positioning fixture 1. The positioning fixture 1 includes a three-sided positioning structure formed by at least one baffle 12 and an opening 11 for inserting the heat sink unit. If the structure is formed by a single baffle 12, it forms a U-shaped structure; if it is formed by multiple baffles 12, baffles 12 can be provided in multiple directions. When placing the heat sink unit, it can be placed within the positioning area limited by the three-sided positioning structure through the opening 11 or above it.

[0026] The punch 2 is driven by the driver to move closer to or away from the limiting fixture 1 to press the pin 01 to connect to the heat sink unit 02. Therefore, this application does not impose specific restrictions on the punching direction. For example, as shown in the figure, since the heat sink unit placed on the limiting fixture 1 is in a horizontal state, the punch 2 moves in the vertical direction to realize the punching operation. The punch 2 has a placement space for placing the pin 01. Before the punching operation, the pin 01 is placed in the placement space by hand or by other output structures.

[0027] An anti-tilting baffle 3 is movably mounted on one of the baffles 12. In operation, the anti-tilting baffle 3 partially acts on a predetermined position of the heat sink unit 02 and abuts against the upper wall at that location, thus limiting its height. When the heat sink unit is pressed by the punch, the opposite end will experience a reaction force and tilt upwards. This change in state will affect the accuracy of the pin installation. The predetermined position is the side opposite the pin mounting hole on the defined axis X, away from the punching end, i.e., region S. In other words, the end or part of the anti-tilting baffle 3 acts on region S.

[0028] In order to shorten the length of the anti-tilting baffle 3 and improve its own support strength, the anti-tilting baffle 3 is installed on the baffle 12 near the opening 11, because the baffle 3 at this position is closer to the area S.

[0029] Meanwhile, to reduce the impact of the anti-tilting baffle 3 on the installation of the radiator unit, this application sets the anti-tilting baffle 3 as a movable structure. The anti-tilting baffle 3 switches between a working state and a non-working state by moving or rotating. When in the non-working state, the anti-tilting baffle 3 is detached from the positioning area of ​​the baffle 12, facilitating the placement of the radiator unit. Specifically, in this embodiment, the anti-tilting baffle 3 is hinged to one of the baffles 12 near the opening 11, that is, the anti-tilting baffle 3 switches between a working state and a non-working state by rotating horizontally. Preferably, the anti-tilting baffle 3 is directly installed at the opposite end of the radiator unit's stamping position.

[0030] Based on the above-mentioned driving method for the horizontal rotation of the anti-tilting baffle 3, the following two embodiments are disclosed in this application;

[0031] In the first embodiment, the working state switching of the anti-tilting baffle 3 is achieved by hand-operated drive, that is, by hand-operated toggling the anti-tilting baffle 3 to enter the non-working state. The rotating connection of the anti-tilting baffle 3 is equipped with an elastic support 4 that maintains the working state when it is not subjected to external force. The elastic support 4 can be a reset torsion spring. After the hand-operated driving force is lost, the elastic support 4 uses its own elasticity to drive the anti-tilting baffle 3 to reset to the working state.

[0032] See Figure 3 , Figure 4 and Figure 5 In the second embodiment, a rack structure 5 is provided on the side wall of the baffle 12 on which the anti-tilting baffle 3 is installed, and a slider 6 is slidably mounted thereon. When the anti-tilting baffle 3 is hinged to the slider 6, a gear 7 adapted to mesh with the rack structure 5 is installed on its rotating shaft. During the rotation of the anti-tilting baffle 3, the slider 6 is moved by hand. During the movement, the rack structure 5 and the gear 7 mesh and drive each other. The rotation of the gear drives the anti-tilting baffle 3 to rotate, thereby achieving the switching of states. At the same time, an opening limiting baffle 8 is provided on the slider 6, which partially covers the opening 11. As the slider 6 slides, the opening limiting baffle 8 increases or decreases the positioning area where the baffle 12 is located. The positioning area increases to facilitate the placement of the heat sink unit, while the positioning area decreases to achieve the positioning of the heat sink unit.

[0033] Meanwhile, in order to optimize the positioning effect of the opening limiting baffle 8, the slider 6 and the baffle 12 can also be connected by an elastic support 4 (here the elastic support 4 can be a straight spring).

[0034] In summary, this utility model provides a diagonal pin assembly structure for a heat sink, including a positioning fixture for limiting the position of a heat sink unit and a punch for pressing the pins into the positioning fixture. The positioning fixture includes a three-sided positioning structure formed by at least one baffle and an opening for inserting the heat sink unit. When placing the heat sink unit, it can be placed within the positioning area limited by the three-sided positioning structure through the opening or above. The punch is driven by a driver to move closer to or away from the positioning fixture to press the pins to connect to the heat sink unit. Therefore, this application does not impose specific restrictions on the pressing direction. Since the heat sink unit placed on the positioning fixture is in a horizontal state, the punch moves vertically to achieve the pressing operation. The punch has a placement space for placing the pins. Before the pressing operation, the pins are placed in this placement space by hand or by other output structures. An anti-tilting baffle is movably disposed on one of the baffles. In operation, the anti-tilting baffle partially acts on a predetermined position of the heat sink unit and abuts against the upper wall at that location, thus limiting its height. When the heat sink unit is pressed by a punch, the opposite end experiences a reaction force and tilts upwards. This change in state affects the accuracy of pin installation. This application can: 1. Limit the height of the heat sink's movement using an anti-tilting baffle. When the heat sink unit is pressed by a punch, the opposite end experiences a reaction force and tilts upwards. This change in state affects the accuracy of pin installation.

[0035] 2. Setting the anti-tilting baffle as a movable structure can reduce its impact on the installation of the radiator unit when in operation.

[0036] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A heat sink diagonal pin assembly structure, characterized by, include: A limiting fixture, comprising a three-sided positioning structure formed by at least one baffle and an opening for inserting a heat sink unit; The punch, driven by the driver, moves closer to or away from the limit fixture to press the pins connected to the heat sink unit. An anti-tilting baffle is movably disposed on one of the baffles. In the working state, the anti-tilting baffle partially acts on a predetermined position of the heat sink unit and abuts against the upper wall there. The predetermined position is the side away from the stamping end, which is the side of the predetermined axis connected diagonally without the pin mounting hole.

2. The heat spreader-diagonal lead package assembly of claim 1, wherein, The anti-tilting baffle is located on the baffle near the opening.

3. The heat spreader-diagonal lead package structure of claim 1 or 2, wherein The anti-tilting baffle switches between working and non-working states by moving or rotating; when in the non-working state, the anti-tilting baffle is removed from the positioning area where the baffle is located.

4. The heat spreader-diagonal lead package structure of claim 3, wherein, The anti-tilting baffle is hinged to one of the baffles near the opening.

5. The heat spreader-diagonal lead package assembly of claim 4 wherein, The anti-tilting baffle is equipped with an elastic support at its rotating connection point to maintain its working state when it is not subjected to external force.

6. The heat spreader-diagonal lead package structure of claim 3, wherein, The side wall of the anti-tilting baffle is provided with a rack structure and a slider is slidably installed thereon. The anti-tilting baffle is hinged onto the slider, and a gear adapted to mesh with the rack structure is installed on its rotating shaft.

7. The heat spreader-diagonal lead package assembly of claim 6 wherein, The slider is provided with an opening limiting baffle, which partially covers the opening position; as the slider slides, the opening limiting baffle increases or decreases the positioning area where the baffle is located.

8. The heat spreader-diagonal lead package structure of claim 1, wherein, The punch moves vertically to perform the stamping operation.