CPU (Central Processing Unit) radiator with radiating fan at top

Abstract

The CPU radiator comprises a heat dissipation assembly, a first fan assembly, a second fan assembly and a heat pipe assembly, the heat dissipation assembly is of a tower-shaped structure formed by stacking a plurality of heat dissipation fins, a first clamping groove is vertically formed in the top wall of the heat dissipation assembly, and a second clamping groove is formed in the top wall of the heat dissipation assembly. Second clamping grooves distributed in the height direction of the heat dissipation assembly are formed in the two opposite side walls of the heat dissipation assembly, the first fan assembly is provided with clamping hooks matched with the first clamping grooves, the clamping hooks stretch into the first clamping grooves and then are clamped to the wall faces of the heat dissipation fins, and a guide flow channel is formed between the second fan assembly and the heat dissipation assembly. The second fan assemblies are installed in the first clamping grooves through elastic frames, and the two sets of second fan assemblies are oppositely arranged. When heat dissipation is needed, the first fan assembly conveys fluid upwards, and the two second fan assemblies convey the fluid to the same direction.

Description

Technical Field

[0001] This utility model relates to the field of computer heat sinks, and in particular to a CPU heat sink with a cooling fan on top. Background Technology

[0002] Heat sinks, also known as heat dissipation fins, are classified as "passive heat dissipation components" in the field of electronic engineering design. They are made of a lightweight, easily processed metal with good thermal conductivity, attached to the heat-generating surface, and dissipate heat through a composite heat exchange mode.

[0003] However, as the operating frequency of heat-generating components increases, the requirements for heat exchange efficiency also become more stringent. Current practices typically involve mounting fans directly on the heatsink fins to improve cooling efficiency. However, installing existing fans is cumbersome, impacting installation efficiency and increasing costs (e.g., requiring special drilling into the heatsink fins).

[0004] For example, Chinese patent CN202421117429.4 requires a special mounting bracket to install the fan, which necessitates drilling holes in the heat sink fins.

[0005] Of course, there is also the Chinese patent CN202421108700.8, which uses special grooves on the heat sink fins to accommodate multiple fans. Therefore, the corresponding heat sink fins also need to be customized, which increases the production cost. Utility Model Content

[0006] The main purpose of this invention is to propose a CPU cooler with a top-mounted cooling fan. It aims to set up a simple bracket to achieve stable fan installation. At the same time, it has a simple structure, low cost, and can be used with existing fans, thereby effectively improving market competitiveness.

[0007] To achieve the above objectives, this utility model proposes a CPU cooler with a top-mounted cooling fan, comprising:

[0008] The heat dissipation assembly consists of multiple heat dissipation fins stacked in a tower-like structure, and the top wall of the heat dissipation assembly has a vertically arranged first slot.

[0009] The heat dissipation assembly has second slots distributed along its height on its opposite side walls;

[0010] A first fan assembly is provided with a hook that cooperates with a first slot. The hook extends into the first slot and engages with the wall of the heat dissipation fins.

[0011] The second fan assembly has a guide channel between the second fan assembly and the heat dissipation assembly. The second fan assembly is mounted in the first slot by a flexible bracket. The second fan assembly has two sets arranged opposite to each other.

[0012] A heat pipe assembly, comprising a heat-absorbing section and heat-dissipating sections extending upward from both ends of the heat-absorbing section, the heat-dissipating sections extending into a heat dissipation assembly.

[0013] The heat-absorbing section is in contact with the heat-dissipating copper sheet, and the bottom wall of the heat-dissipating copper sheet and the bottom wall of the heat-absorbing section are in contact with the heating element.

[0014] When heat dissipation is required, the first fan assembly delivers fluid upwards. When the liquid (water after vacuuming) inside the heat pipe turns into water vapor and reaches the top, the first fan assembly located at the top can make the liquefaction efficiency of the heat pipe higher. Finally, it flows back to the bottom, repeating the cycle to improve heat dissipation performance.

[0015] The dual second fan assembly directs the fluid in the same direction, enabling uniform heat dissipation from the heat pipe.

[0016] Furthermore, the installation of the first and second fan assemblies is relatively simple.

[0017] This effectively improves the heat exchange efficiency of the heat pipe assembly;

[0018] The second slot serves as both an installation structure and an effective installation efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0020] Figure 2 For the purpose of this utility model explosion Figure 1 ;

[0021] Figure 3 For the purpose of this utility model explosion Figure 2 ;

[0022] Figure 4 This is a cross-sectional view of the present utility model. Figure 1 ;

[0023] Figure 5 This is a cross-sectional view of the present utility model. Figure 2 ;

[0024] Figure 6 This is a schematic diagram showing the connection between the fan and the flexible bracket.

[0025] 1 represents the heat dissipation component, 10 represents the heat dissipation fins, 11 represents the first card slot, and 12 represents the second card slot.

[0026] 2 is the first fan assembly, 20 is the latch, 201 is the vertical rod, 202 is the hook, and 21 is the housing.

[0027] 3 is the second fan assembly.

[0028] 4 represents the heat pipe assembly, 41 represents the heat absorption section, 411 represents the flat surface, 412 represents the curved surface, and 42 represents the heat dissipation section.

[0029] 5 is the guide flow channel.

[0030] 6 is the flexible frame, 61 is the first hook, 62 is the second hook, 63 is the wrench part, 64 is the flexible support rod, and 7 is the heat pipe.

[0031] 8 is a positioning hole. Detailed Implementation

[0032] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0033] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0034] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0035] like Figures 1 to 6 As shown, a CPU cooler with a top-mounted cooling fan includes;

[0036] The heat dissipation assembly 1 is composed of multiple heat dissipation fins 10 stacked in a tower-like structure. The top wall of the heat dissipation assembly 1 is provided with a vertically arranged first slot 11.

[0037] The heat dissipation assembly 1 has second slots 12 distributed along its height direction on its opposite side walls;

[0038] The first fan assembly 2 is provided with a hook 20 that cooperates with the first slot 11. The hook 20 extends into the first slot 11 and is engaged with the wall surface of the heat dissipation fin 10.

[0039] The second fan assembly 3 is provided with a guide channel 5 between the second fan assembly 3 and the heat dissipation assembly 1 (which can further increase the fluid flow rate in the horizontal direction of the heat dissipation fins, reduce turbulence, and facilitate installation). The second fan assembly 3 is installed in the first slot 11 by the elastic bracket 6. The second fan assembly 3 is provided in two sets and is arranged opposite to each other.

[0040] The heat pipe assembly 4 includes a heat absorption section 41 and heat dissipation sections 42 extending upward from both ends of the heat absorption section 41. The heat dissipation sections 42 extend into the heat dissipation assembly 1.

[0041] The heat-absorbing section 41 is in contact with the heat-dissipating copper sheet, and the bottom wall of the heat-dissipating copper sheet and the bottom wall of the heat-absorbing section 41 are in contact with the heating element.

[0042] In the actual design, the flexible bracket 6 facilitates the installation of the second fan assembly 3.

[0043] When heat dissipation is required, the first fan assembly delivers fluid upwards. When the liquid (water after vacuuming) inside the heat pipe turns into water vapor and reaches the top, the first fan assembly located at the top can make the liquefaction efficiency of the heat pipe higher. Finally, it flows back to the bottom, repeating the cycle to improve heat dissipation performance.

[0044] The dual second fan assembly directs the fluid in the same direction, enabling uniform heat dissipation from the heat pipe.

[0045] Furthermore, the installation of the first and second fan assemblies is relatively simple.

[0046] This effectively improves the heat exchange efficiency of the heat pipe assembly;

[0047] The second slot serves as both an installation structure and an effective installation efficiency.

[0048] Of course, in specific embodiments, the first fan assembly can be replaced with a semiconductor heat sink to improve the conversion efficiency of liquefaction at the top of the heat pipe.

[0049] Specifically, the heat dissipation fins 10 are provided with a set of inclined second slots 12 on opposite sides, and the second slots 12 are distributed along the height direction of the heat dissipation fins 10.

[0050] The elastic frame 6 includes two spaced-apart first hooks 61 and second hooks 62 extending inward from the two first hooks 61. The second hooks 62 are hooked into the second slot 12.

[0051] The second fan assembly is provided with a positioning hole, and the first hook 61 extends into the positioning hole, thereby realizing the installation and removal of the fan;

[0052] Its structure is simple and stable. It achieves the clamping and fixing of the fan to the heat dissipation fins 10 through two sets of relatively set elastic clamps.

[0053] In this embodiment of the utility model, the first hook 61 is provided with a protruding and bent wrench 63 in the middle. Therefore, when disassembly is required, pressure is applied to the wrench 63 of the two elastic frames 6 so that the second hook 62 can be disengaged from the hook groove.

[0054] Specifically, an inclined and bent elastic support rod 64 is provided between the first hook 61 and the second hook 62, wherein the elastic support rod 64 can provide a predetermined deformation pressure during use, thereby realizing the installation and fixation between the fan and the heat sink fins 10.

[0055] In this embodiment of the utility model, the heat pipe is provided with an internal circulation channel, which includes a heat dissipation channel located in the heat absorption section 41 and a condensation channel located in the heat dissipation section 42. The fluid circulates from the heat dissipation channel, the condensation channel and the heat dissipation channel.

[0056] Heat pipes are an existing technology that achieves gas-liquid exchange of fluids through a sintered structure.

[0057] In the evaporation section of the heat pipe, the working fluid inside the core evaporates upon heating, carrying away heat—the latent heat of vaporization of the working fluid. The vapor flows from the central channel to the condensation section of the heat pipe, condensing into liquid and releasing latent heat. Under capillary action, the liquid flows back to the evaporation section. This completes a closed loop, transferring a large amount of heat from the heating section to the heat dissipation section 42. When the heating section is below and the cooling section is above, with the heat pipe placed vertically, the return of the working fluid is sufficient due to gravity, eliminating the need for a capillary-structured core. This type of heat pipe without a porous core is called a thermosiphon. Thermosiphons have a simple structure and are widely used in engineering.

[0058] Specifically, the hook 20 includes a vertical rod 201 and a hook portion 202 extending horizontally from the vertical rod 201.

[0059] The hook portion includes a horizontal surface on the upper wall and an inclined surface on the lower wall. The inclined surface is used to facilitate the hook portion to extend into the vertically set first slot 11, and the horizontal surface is used to abut against the lower wall of the heat dissipation fins 10, thereby realizing the installation of the hook 20.

[0060] The heat dissipation fins 10 are stacked, so the hooks 20 can be stably attached and installed.

[0061] In this embodiment of the utility model, the first fan assembly 2 includes a housing 21 that is the same size as the upper wall of the heat dissipation assembly 1 and a first fan disposed on the top wall of the housing 21, which effectively avoids uneven heat dissipation caused by the small contact area of ​​the top wall of the heat pipe and improves the heat dissipation stability of the heat pipe; direct air cooling is adopted.

[0062] Specifically, the bottom wall of the heat-absorbing section 41 is a plane 411, and the peripheral wall of the heat-absorbing section 41 away from the plane 411 is an arc-shaped surface 412. The arc-shaped surface 412 fits into the inner wall of the positioning groove, thereby increasing the contact area with the heating element.

[0063] In this embodiment of the invention, the two second fan assemblies 3 have the same airflow direction, thereby achieving a single fluid direction.

[0064] Specifically, the housing 21 is also provided with a decorative shell, which is equipped with a lighting device. The heat dissipation assembly 1 is surrounded by the first fan assembly 2 and two second fan assemblies 3, thereby improving the aesthetics of the heat dissipation unit and enhancing product recognition.

[0065] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A CPU cooler with a top-mounted cooling fan, characterized in that, include; The heat dissipation assembly consists of multiple heat dissipation fins stacked in a tower-like structure, and the top wall of the heat dissipation assembly has a vertically arranged first slot. The heat dissipation assembly has second slots distributed along its height on its opposite side walls; A first fan assembly is provided with a hook that cooperates with a first slot. The hook extends into the first slot and engages with the wall of the heat dissipation fins. The second fan assembly has a guide channel between the second fan assembly and the heat dissipation assembly. The second fan assembly is mounted in the first slot by a flexible bracket. The second fan assembly has two sets arranged opposite to each other. A heat pipe assembly, comprising a heat-absorbing section and heat-dissipating sections extending upward from both ends of the heat-absorbing section, the heat-dissipating sections extending into a heat dissipation assembly. The heat-absorbing section is in contact with the heat-dissipating copper sheet, and the bottom wall of the heat-dissipating copper sheet and the bottom wall of the heat-absorbing section are in contact with the heating element. When heat dissipation is required, the first fan assembly delivers fluid upwards, and the dual second fan assemblies deliver the fluid in the same direction.

2. The CPU cooler with a top-mounted cooling fan as described in claim 1, characterized in that: The heat dissipation fins are provided with a set of inclined second slots on opposite sides, and the second slots are distributed along the height direction of the heat dissipation fins. The elastic frame includes two spaced-apart first hooks and a second hook extending inward from the two first hooks, the second hooks being hooked into a second slot. The second fan assembly has a positioning hole, and the first hook extends into the positioning hole.

3. The CPU cooler with a top-mounted cooling fan as described in claim 2, characterized in that: The first hook has a protruding and bent wrench part in the middle.

4. The CPU cooler with a top-mounted cooling fan as described in claim 2, characterized in that: An inclined and bent elastic support rod is provided between the first hook and the second hook.

5. The CPU cooler with a top-mounted cooling fan as described in claim 2, characterized in that: The heat pipe is provided with an internal circulation channel, which includes a heat dissipation channel located in the heat absorption section and a condensation channel located in the heat dissipation section. Fluid circulates from the heat dissipation channel, the condensation channel and back to the heat dissipation channel.

6. The CPU cooler with a top-mounted cooling fan as described in claim 2, characterized in that: The hook includes a vertical rod and a hook portion extending horizontally from the vertical rod. The hook portion includes a horizontal surface on the upper wall and an inclined surface on the lower wall.

7. The CPU cooler with a top-mounted cooling fan as described in claim 1, characterized in that: The first fan assembly includes a housing that is the same size as the upper wall of the heat dissipation assembly and a first fan disposed on the top wall of the housing.

8. The CPU cooler with a top-mounted cooling fan as described in claim 1, characterized in that: The bottom wall of the heat-absorbing section is a plane, and the peripheral wall of the heat-absorbing section away from the plane is an arc-shaped surface, which fits into the inner wall of the positioning groove.

9. The CPU cooler with a top-mounted cooling fan as described in claim 1, characterized in that: The two second fan components have the same airflow direction.

10. The CPU cooler with a top-mounted cooling fan as described in claim 7, characterized in that: The housing also includes a decorative shell, which is equipped with a lighting device.

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