An interference fit heat sink pin assembly structure

Abstract

This utility model applies to the field of radiator assembly fixtures, providing an interference fit radiator pin assembly structure, including a positioning platform, which is a three-sided positioning structure with an opening; a stamping head, located above the positioning platform, driven to approach the positioning platform to perform stamping work; and a positioning plate, disposed on the stamping head, which engages with the opening during the stamping process to detect whether the radiator unit is placed in the correct position. The stamping process of the stamping head is divided into two stages, and further divided into first and second stages according to the stamping depth. If the positioning plate is not fully engaged with the opening, the second stage of stamping is canceled. Thus, this utility model utilizes the positioning plate to perform the position detection of the radiator unit. If it is not fully engaged with the opening, the second stage of stamping is canceled, and the entire stamping process is not completed at this time, which can promptly stop the stamping head from damaging the radiator unit due to incorrect positioning.

Description

Technical Field

[0001] This utility model relates to the field of heat sink assembly tooling, and in particular to an interference fit heat sink pin assembly structure. Background Technology

[0002] A radiator 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 rate of heat exchange and optimizing the cooling effect. During installation, the radiator is typically fixedly connected to the unit that needs cooling, transferring heat to that unit.

[0003] In electronic heat sinks, they are generally connected to the circuit board that needs to be cooled via pins. The pins have a certain supporting strength and can serve as a temporary positioning effect during installation. At the same time, the pins themselves are made of solder, which can be melted and soldered by an electric soldering iron after being inserted into the corresponding mounting hole.

[0004] Our company has provided a new type of pin-to-heat sink mating structure, which uses a direct mating connection method to effectively solve the problem of traditional glue-fitting being easily affected by temperature. At the same time, in order to facilitate the assembly work, it is also necessary to develop an interference fit heat sink pin assembly structure.

[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 shortcomings, the purpose of this utility model is to provide an interference fit heat sink pin assembly structure, which can: 1. During the pressing process, in order to ensure that the pins are installed in place, the edge of the slot may be damaged to a certain extent. However, by using stamping contacts for squeezing, the damaged area can be reduced.

[0007] 2. Use the positioning plate to detect the position of the heat sink unit. If it is not fully engaged at the opening, cancel the second-stage stamping. At this point, the entire stamping process is not completed, and the stamping head can be stopped in time to prevent damage to the heat sink unit due to incorrect positioning.

[0008] To achieve the above objectives, this utility model provides an interference fit heat sink pin assembly structure, comprising: a positioning platform, which is a three-sided positioning structure with an opening; a stamping head, located above the positioning platform, which is driven to approach the positioning platform to perform stamping work; a positioning plate, disposed on the stamping head, which engages with the opening during the stamping process to detect whether the heat sink unit is placed in place; the stamping process of the stamping head is divided into two stages, and is further divided into a first stage and a second stage according to the stamping depth; if the positioning plate is not fully engaged with the opening, the second stage of stamping is cancelled.

[0009] According to the interference-fit radiator pin assembly structure of this utility model, the end of the stamping head has multiple stamping contacts, and there is a gap between adjacent stamping contacts.

[0010] According to the interference-fit radiator pin assembly structure of this utility model, the stamping contact is a fixed structure; the stamping head includes a punch body, and the stamping contact is fixedly disposed at the end of the punch body.

[0011] According to the interference-fit radiator pin assembly structure of this utility model, the stamping contact is a retractable structure; the stamping head includes an inner core and an outer core that are connected to each other and can move relative to each other, and a stamping contact is provided at the end of the inner core; a positioning plate is provided on the outer core.

[0012] According to the interference-fit radiator pin assembly structure of this utility model, the positioning plate is rotatably mounted on the outer casing.

[0013] According to the interference-fit radiator pin assembly structure of this utility model, the positioning plate rotates due to the relative movement of the inner core and the outer sleeve; the positioning plate is provided with a force-receiving protrusion having an offset distance H from the rotation axis, and the inner core is provided with a pressing force-receiving protrusion to drive the positioning plate to rotate.

[0014] According to the interference-fit radiator pin assembly structure of this utility model, the positioning platform is a "U" shaped structure.

[0015] According to the interference-fit radiator pin assembly structure of this utility model, a torsion spring for rotational reset is provided at the rotation axis of the positioning plate.

[0016] This invention provides an interference fit heat sink pin assembly structure, including a positioning platform and a punching head located above the positioning platform. The positioning platform is a three-sided positioning structure with an opening, which can be formed by three continuous or discontinuous baffles. The punching head is driven to approach the positioning platform to perform the punching operation. The punching head is driven by a driver to move downwards for punching and move upwards to reset. The end of the punching head has multiple punching contacts with gaps between adjacent punching contacts. During operation, the punching contacts mainly press the pins into the slots of the heat sink unit. This is because during the pressing process, ensuring the pins are installed in place can cause some damage to the edge of the slot, while using punching contacts can reduce the damaged area. A positioning plate, mounted on the stamping head, engages with the opening during the stamping process to detect whether the radiator unit is properly positioned. If the radiator unit is properly positioned, it can be completely placed within the positioning space enclosed by the positioning platform and the positioning plate. If the radiator unit is not properly positioned, the positioning plate cannot engage with the opening and will be stuck above the radiator unit, preventing it from falling normally. The stamping process of the stamping head is divided into two stages, and further divided into first and second stages based on the stamping depth. If the positioning plate is not fully engaged with the opening, the second stage of stamping is canceled. At this point, the entire stamping process is not yet complete, and the stamping work that could damage the radiator unit due to incorrect positioning can be stopped in time.

[0017] This application can: 1. During the pressing process, in order to ensure that the pin is installed in place, the edge of the card slot will be damaged to a certain extent. However, by using the stamping contact to squeeze, the damaged area can be reduced.

[0018] 2. Use the positioning plate to detect the position of the heat sink unit. If it is not fully engaged at the opening, cancel the second-stage stamping. At this point, the entire stamping process is not completed, and the stamping head can be stopped in time to prevent damage to the heat sink unit due to incorrect positioning. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the assembly of the pins and the heat sink unit;

[0020] Figure 2 This is a schematic diagram of the pin installation;

[0021] Figure 3 This is a schematic diagram of the structure of this utility model;

[0022] Figure 4 yes Figure 3 Side view;

[0023] Figure 5 yes Figure 4 Internal structure diagram of the stamping head at section A;

[0024] In the diagram, 01-pin, 02-heat sink unit, 1-positioning platform, 2-opening, 3-punch head, 4-positioning plate, 31-punch contact, 32-punch body, 33-inner core, 34-outer jacket, 41-force-bearing protrusion, 42-pressure block. Detailed Implementation

[0025] 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.

[0026] See Figure 1 , Figure 2 , Figure 3 This utility model provides an interference fit heat sink pin assembly structure, which includes a positioning platform 1 and a stamping head 3 located above the positioning platform 1. The positioning platform 1 is a three-sided positioning structure with an opening 2. This structure can be formed by three continuous or discontinuous baffles. For example, in this embodiment, the positioning platform 1 is a continuous "U"-shaped structure. When placing the heat sink unit, it is placed in the space enclosed by the three baffles through the opening 2 of the positioning platform 1, with the side wall just in contact with the side of the heat sink unit 02, thereby achieving the positioning of the heat sink unit.

[0027] The stamping head 3 is driven to approach the positioning table 1 to perform the stamping operation. As shown in the figure, the stamping head 3 is driven by a driver (cylinder, electric cylinder, or hydraulic cylinder) to move downwards for stamping and move upwards to reset. The end of the stamping head 3 has multiple stamping contacts 31, with gaps between adjacent stamping contacts 31. During operation, the stamping contacts 31 mainly press the pin 01 into the slot of the heat sink unit. This is because during the pressing process, ensuring the pin is installed in place would cause some damage to the edge of the slot, while using the stamping contacts 31 can reduce the damaged area.

[0028] See Figure 3 and Figure 4 The positioning plate 4 is set on the stamping head 3 and engages with the opening 2 during the stamping process to detect whether the heat sink unit is placed in place. If the heat sink unit is placed in place, it can be completely placed within the positioning space enclosed by the positioning platform 1 and the positioning plate 4. If the heat sink unit is not placed in place, the positioning plate 4 cannot engage with the opening 2 and will be stuck above the heat sink unit, thus preventing it from falling normally. The stamping process of the stamping head is divided into two stages, and is further divided into one stage and two stages according to the stamping depth. If the positioning plate 4 is not completely engaged with the opening 2, the second stage of stamping is canceled. At this time, the entire stamping process is not completed, and the stamping work of the stamping head 3 at the wrong position of the heat sink unit can be stopped in time.

[0029] In addition, a position sensor can be installed on the movable position of the positioning plate 4. When it cannot be fastened to the opening 2, the position sensor sends a signal to the alarm device.

[0030] Based on the working process of the positioning plate 4 described above, the following two embodiments can be defined according to the driving method.

[0031] In the first embodiment, the stamping contact 31 is a fixed structure; the stamping head 3 includes a punch body 32, and the stamping contact 31 is fixedly disposed at the end of the punch body 32. At this time, the positioning plate 4 is driven by an independent driver to operate, and the specific movement method can be as shown in the figure, where the positioning plate 4 is rotatably mounted on the stamping head 3. Other movement methods can also be used, such as vertical movement. The rotation of the positioning plate 4 can be driven by a micro motor.

[0032] See Figure 4 and Figure 5 In the second embodiment, this application discloses a positioning plate 4 without an independent driving structure. In this embodiment, the stamping contact 31 is a retractable structure; that is, the stamping head 3 includes an inner core 33 and an outer shell 34 that are connected and can move relative to each other. The end of the inner core 33 is provided with a stamping contact 31 and is connected to the output end of the driver; the outer shell 34 is provided with a positioning plate 4. During the stamping operation, the outer shell 34 first contacts the heat sink unit, generally the fins of the heat sink unit. After contact, the outer shell 34 stops moving, but as the driving continues, the inner core 33 continues to move downwards, and the stamping contact 31 performs the stamping operation.

[0033] The positioning plate 4 rotates due to the relative movement of the inner core 33 and the outer sleeve 34. The positioning plate 4 is rotatably mounted on the outer sleeve 34. The positioning plate 4 is provided with a force-receiving protrusion 41 offset by a distance H from the rotation axis. The inner core 33 is provided with a pressing block 42 that presses down on the force-receiving protrusion 41 to drive the positioning plate 4 to rotate. When the outer sleeve 34 is braked, the inner core 33 continues to move under the drive, which synchronously drives the pressing block 42 to press down on the force-receiving protrusion 41, thereby driving the rotation of the positioning plate 4.

[0034] Finally, a torsion spring for rotational reset is provided at the rotation axis of the positioning plate 4. After the positioning plate 4 loses external force, it can be reset by the drive of the torsion spring.

[0035] In summary, this utility model provides an interference fit heat sink pin assembly structure, including a positioning platform and a stamping head located above the positioning platform. The positioning platform is a three-sided positioning structure with an opening, which can be formed by three continuous or discontinuous baffles. The stamping head is driven to approach the positioning platform to perform the stamping operation. The stamping head is driven by a driver to move downwards for stamping and move upwards to reset. The end of the stamping head has multiple stamping contacts with gaps between adjacent stamping contacts. During operation, the stamping contacts mainly press the pins into the slots of the heat sink unit. This is because during the pressing process, ensuring the pins are installed in place can cause some damage to the edge of the slot, while using stamping contacts can reduce the damaged area. A positioning plate, mounted on the stamping head, engages with the opening during the stamping process to detect whether the radiator unit is properly positioned. If the radiator unit is properly positioned, it can be completely placed within the positioning space enclosed by the positioning platform and the positioning plate. If the radiator unit is not properly positioned, the positioning plate cannot engage with the opening and will be stuck above the radiator unit, preventing it from falling normally. The stamping process of the stamping head is divided into two stages, and further divided into first and second stages based on the stamping depth. If the positioning plate is not fully engaged with the opening, the second stage of stamping is canceled. At this point, the entire stamping process is not yet complete, and the stamping work that could damage the radiator unit due to incorrect positioning can be stopped in time.

[0036] This application can: 1. During the pressing process, in order to ensure that the pin is installed in place, the edge of the card slot will be damaged to a certain extent. However, by using the stamping contact to squeeze, the damaged area can be reduced.

[0037] 2. Use the positioning plate to detect the position of the heat sink unit. If it is not fully engaged at the opening, cancel the second-stage stamping. At this point, the entire stamping process is not completed, and the stamping head can be stopped in time to prevent damage to the heat sink unit due to incorrect positioning.

[0038] 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. An interference heat sink pin assembly structure, characterized by, Comprising: A positioning table, which is a three-sided positioning structure with an opening; A stamping head, located above the positioning table, which is driven to approach the positioning table to perform stamping work; A positioning plate, arranged on the stamping head, which is buckled at the opening during the stamping process to detect whether the radiator unit is placed in place; the stamping process of the stamping head is divided into two segments, and is divided into a first segment and a second segment according to the stamping depth. If the positioning plate is not fully buckled at the opening, the second segment stamping is cancelled.

2. The interference heat spreader pin assembly structure of claim 1, wherein, The end of the stamping head has multiple stamping contacts, and there are gaps between adjacent stamping contacts.

3. The interference heat spreader pin assembly structure of claim 2, wherein, The stamping contact is a fixed structure; The stamping head includes a punch body, and the stamping contacts are fixedly arranged at the end of the punch body.

4. The interference heat spreader pin assembly structure of claim 2, wherein, The stamping contact is a retractable structure; The stamping head includes an inner core and an outer sleeve that are sleeved and can move relatively. The stamping contacts are arranged at the end of the inner core; the positioning plate is arranged on the outer sleeve.

5. The interference heat spreader pin assembly structure of claim 4, wherein, The positioning plate is rotatably installed on the outer sleeve.

6. The interference heat spreader pin assembly structure of claim 5, wherein, The positioning plate rotates due to the relative movement of the inner core and the outer sleeve; There is a force-receiving protrusion with an offset distance H from the rotation axis on the positioning plate, and a pressing block for driving the positioning plate to rotate by pressing the force-receiving protrusion is arranged on the inner core.

7. The interference heat spreader pin assembly structure of claim 1, wherein, The positioning table is a "U" shaped structure.

8. The interference heat spreader pin assembly structure of any one of claims 1-7, wherein, A torsion spring for rotational reset is arranged at the rotation axis of the positioning plate.

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