A heat sink assembly positioning structure
By using a locator and a movable locating paddle in combination during the radiator assembly process, the positioning problem in the radiator assembly process is solved, achieving precise positioning and protecting the integrity of the radiator unit.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIFANG XINLONGSHENG ELECTRONIC RADIATOR CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-05-26
AI Technical Summary
Existing technologies make it difficult to achieve precise positioning during radiator assembly, leading to assembly errors and damage to radiator units.
The locator's mating part is inserted into the positioning hole, and combined with the movable positioning tab, the circumferential and smooth positioning of the heat sink unit is achieved. The driver is used to drive the locator to move along the positioning hole to achieve precise positioning.
This achieves precise positioning of the heat sink unit, avoiding assembly errors and rigid impacts, and protecting the integrity of the heat sink unit.
Smart Images

Figure CN224274860U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of radiator assembly tooling, and in particular to a radiator assembly positioning 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 offers a novel pin-heatsink mating structure, which utilizes a direct mating assembly method, as shown in the figure. The pins are installed in the slot via plug-in connection. During assembly, the heatsink needs to be moved to a predetermined position and then await pin insertion. To ensure the heatsink is accurately positioned at the predetermined location, a heatsink assembly and positioning structure needs to be developed.
[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 heat sink assembly positioning structure, which can: 1. Position the heat sink unit during pin installation by inserting the mating part of the positioner into the positioning hole;
[0007] 2. The positioning lever adopts a movable structure, which can not only position the radiator unit circumferentially, but also achieve a "smooth" positioning effect.
[0008] To achieve the above objectives, this utility model provides a heat sink assembly and positioning structure, including at least one heat sink unit that moves along a guide rail, wherein the heat sink unit is provided with a positioning hole; a positioner including a mating part; when the positioner is in the working state, it drives the mating part to be inserted into the positioning hole; after the heat sink unit moves to the assembly position, the positioner enters the working state; after the pins are assembled, the positioner enters the non-working state.
[0009] According to the radiator assembly and positioning structure of this utility model, the end of the mating part is a protrusion with an arc-shaped transition outer wall; the hole wall of the positioning hole is also an arc-shaped transition structure.
[0010] According to the radiator assembly and positioning structure of this utility model, the positioning hole is located in the middle of the radiator unit.
[0011] According to the radiator assembly positioning structure of this utility model, the positioner is driven by an actuator and moves along the opening direction of the positioning hole to approach or move away from the radiator unit.
[0012] According to the radiator assembly positioning structure of this utility model, the positioner is driven by a driver to move up and down in the vertical direction.
[0013] According to the radiator assembly and positioning structure of this utility model, a positioning tab is provided on one side of the mating part. After the positioning device enters the working state, the positioning tab is inserted into the gap of the radiator unit fins.
[0014] According to the radiator assembly positioning structure of this utility model, the positioning paddle is rotatably mounted on the positioner, and its initial state is at a predetermined angle A with the extension direction of the mating part; as the external force on the positioning paddle increases, the predetermined angle A increases accordingly.
[0015] According to the radiator assembly and positioning structure of this utility model, a reset component for angle reset is installed at the rotatable connection of the positioning paddle.
[0016] This utility model provides a heat sink assembly positioning structure, including one or more heat sink units and a positioner for positioning the heat sink units. The one or more heat sink units move along a guide rail, and the movement is achieved by a cylinder pushing the side of the heat sink unit to a designated assembly position. The heat sink unit is provided with a positioning hole. The positioner includes a mating part; when the positioner is in the working state, it drives the mating part to insert into the positioning hole. To further optimize the positioning effect of the heat sink unit after the mating part and the positioning hole are engaged, the position of the positioning hole is defined. The positioning hole is located in the middle of the heat sink unit to achieve uniform force distribution on the heat sink unit. The positioner is driven by a driver and moves along the opening direction of the positioning hole to move closer to or further away from the heat sink unit. This utility model can: 1. Position the heat sink unit during pin installation by inserting the mating part of the positioner into the positioning hole;
[0017] 2. The positioning lever adopts a movable structure, which can not only position the radiator unit circumferentially, but also achieve a "smooth" positioning effect. Attached Figure Description
[0018] Figure 1 This is a schematic diagram showing the connection between the heat sink unit and the pins;
[0019] Figure 2 This is a schematic diagram of the structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the positioner of this utility model;
[0021] Figure 4 This is a schematic diagram of the operation of the positioner of this utility model.
[0022] In the diagram, 00-guide rail, 01-pin, 1-heat sink unit, 2-positioning hole, 3-positioner, 31-fitting part, 32-positioning lever. Detailed Implementation
[0023] 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.
[0024] See Figure 1 , Figure 2 This utility model provides a radiator assembly positioning structure, which includes one or more radiator units 1 and a positioner 3 for positioning the radiator units 1. The one or more radiator units 1 move along the guide rail 00 direction, and the movement is achieved by the side of the radiator unit 1 being pushed by a cylinder to reach the designated assembly position.
[0025] The radiator unit 1 is provided with a positioning hole 2. The shape of the positioning hole can be set as needed, such as a square hole or a round hole. In this embodiment, a round hole structure is selected for easy insertion.
[0026] The positioner 3 includes a mating part 31. When the positioner 3 is in operation, the mating part 31 is driven to insert into the positioning hole 2. To further optimize the positioning effect of the radiator unit 1 after the mating part 31 and the positioning hole 2 are engaged, the position of the positioning hole 2 is defined. The positioning hole 2 is located in the middle of the radiator unit 1 to achieve uniform force distribution on the radiator unit 1. The positioner 3 is driven by a driver (usually a cylinder or telescopic motor) to move along the opening direction of the positioning hole 2 to move closer to or further away from the radiator unit 1. Specifically, in the figure, the positioner 3 is driven by a driver to move vertically up and down. Of course, it is not limited to the above-mentioned direction of movement and can also move in other directions as needed.
[0027] After the heat sink unit 1 is moved to the assembly position, the positioner 3 enters the working state. At this time, the mating part 31 is inserted into the positioning hole 2 for limiting. Subsequently, the pin assembly work is carried out. The pin is driven to be inserted into the heat sink unit 1 by an insertion device (not shown in the figure). At this time, because the heat sink unit 1 is limited, it is easily affected by the external force caused by the pin insertion work and its position changes, which may cause assembly errors. After the pin 01 is assembled, the positioner 3 enters the non-working state. At this time, the mating part 31 is disengaged from the positioning hole 2.
[0028] Based on the above embodiments, the end of the mating part 31 is a protrusion with an arc-shaped transition outer wall; the hole wall of the positioning hole 2 is also an arc-shaped transition structure. Through the above structure, when the heat sink unit 1 reaches the designated position, if there is a slight deviation between the positioning hole 2 and the mating part 31, the mating part 31 will achieve fine-tuning matching during the insertion process, driving the heat sink unit 1 to perform position fine-tuning, achieving precise positioning, and avoiding rigid impact due to small errors, which could further damage the heat sink unit 1.
[0029] See Figure 1 , Figure 2 and Figure 3 In another embodiment, this embodiment is an optimization based on the above embodiment. A positioning paddle 32 is provided on one side of the mating part 31. After the positioner 3 enters the working state, the positioning paddle 32 is inserted into the gap between the fins of the heat sink unit 1. Since both the positioning hole 2 and the mating part 31 adopt a circumferential structure, circumferential positioning is lacking. However, when the positioning paddle 32 is inserted into the gap between the fins of the heat sink unit 1, circumferential positioning of the heat sink unit 1 can be achieved, preventing it from rotating around the axis of the positioning hole 2. Meanwhile, the positioning paddle 32 adopts a movable structure, which can achieve a "smoothing" effect. Initially, the area of the positioning paddle 32 inserted into the gap between the fins of the radiator unit 1 is small. As the external force increases (the locator 3 descends), the positioning paddle 32, rotatably mounted on the locator 3, initially forms a predetermined angle A with the extension direction of the mating part 31. As the external force on the positioning paddle 32 increases, the predetermined angle A increases accordingly, and the area of the positioning paddle 32 inserted also increases. During this increase, the positioning paddle 32 can drive the radiator unit 1 to make minor angle adjustments, avoiding rigid impacts that could damage the radiator unit 1. Furthermore, a reset component (such as a torsion spring) is installed at the rotatable connection of the positioning paddle 32 to reset the angle.
[0030] In summary, this utility model provides a heat sink assembly positioning structure, including one or more heat sink units and a positioner for positioning the heat sink units. The one or more heat sink units move along a guide rail, and their movement is achieved by a cylinder pushing the side of the heat sink unit to a designated assembly position. The heat sink unit is provided with a positioning hole. The positioner includes a mating part; when the positioner is in operation, it drives the mating part to insert into the positioning hole. To further optimize the positioning effect of the heat sink unit after the mating part engages with the positioning hole, the position of the positioning hole is defined; the positioning hole is located in the middle of the heat sink unit to achieve uniform force distribution on the heat sink unit. The positioner is driven by a driver and moves along the opening direction of the positioning hole to move closer to or further away from the heat sink unit. This utility model can: 1. Position the heat sink unit during pin installation by inserting the mating part of the positioner into the positioning hole;
[0031] 2. The positioning lever adopts a movable structure, which can not only position the radiator unit circumferentially, but also achieve a "smooth" positioning effect.
[0032] 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 radiator assembly and positioning structure, characterized in that, include: At least one heat sink unit moves along the guide rail direction, and the heat sink unit is provided with positioning holes; The positioner includes a mating part; when the positioner is in the working state, it drives the mating part to be inserted into the positioning hole. After the heat sink unit is moved to the assembly position, the positioner enters the working state; after the pin assembly is completed, the positioner enters the non-working state.
2. The radiator assembly and positioning structure according to claim 1, characterized in that, The end of the mating part is a protrusion with an arc-shaped transition outer wall; the hole wall of the positioning hole is also an arc-shaped transition structure.
3. The radiator assembly and positioning structure according to claim 1, characterized in that, The positioning hole is located in the middle of the heat sink unit.
4. The radiator assembly and positioning structure according to claim 1, characterized in that, The positioner is driven by a driver and moves along the opening direction of the positioning hole to move closer to or further away from the heat sink unit.
5. The radiator assembly and positioning structure according to claim 4, characterized in that, The positioner is driven by a driver to move up and down in the vertical direction.
6. The radiator assembly and positioning structure according to any one of claims 1 to 4, characterized in that, A positioning tab is provided on one side of the mating part. After the positioner enters the working state, the positioning tab is inserted into the gap of the radiator unit fins.
7. The radiator assembly positioning structure according to claim 6, characterized in that, The positioning paddle is rotatably mounted on the positioner, and its initial state is at a predetermined angle A with the extension direction of the mating part; As the external force on the positioning lever increases, the predetermined included angle A also increases.
8. The radiator assembly and positioning structure according to claim 7, characterized in that, The rotatable connection of the positioning lever is equipped with a reset component for angle reset.