Fixed structure load-bearing unit

Abstract

This invention provides a fixed structure support unit, including a base and at least one support unit. The base has an upper surface and a lower surface, at least one through hole and a plurality of connecting holes. The at least one through hole axially penetrates the upper surface and the lower surface. The plurality of connecting holes are located around the outer side of the through hole. Each connecting hole has a mating member. The lower side of the support unit has a plurality of connecting protrusions corresponding to the connecting holes. Each connecting protrusion has a channel corresponding to the mating member. The two ends of the channel have a low recess and a high recess, respectively. The channel extends radially from the low recess to the high recess along a connecting protrusion. The support unit rotates to move the channel relative to the mating member from the low recess to the high recess, so that the plurality of connecting parts are axially inserted into the plurality of connecting holes.

Description

[0001] This case is a divisional application, the parent application of which is Chinese invention patent application with application number 201910060383.4, application date January 22, 2019, and invention title: "Fixed structure of fixed structure bearing unit and heat dissipation assembly". Technical Field

[0002] This invention relates to a fixed structure, and more particularly to a fixed structure for a heat dissipation assembly. Background Technology

[0003] Electronic devices are equipped with a variety of different electronic components, and these different electronic components are responsible for providing different functions for the electronic devices. In particular, the central processing unit or other chips responsible for calculation will generate high temperatures during operation, so additional heat dissipation elements are needed to cool them down and prevent the central processing unit or other chips from burning out.

[0004] Common heat dissipation components include heat sinks, vapor chambers, and heat sink fin assemblies. These components must be in close contact with the chip, central processing unit, or heat source to prevent thermal resistance and conduct heat effectively. Typically, heat dissipation components are secured to the motherboard with screws. The motherboard is then secured by another screw unit on the other side, which engages with a nut component with internal threads on the heat dissipation component. The nut component on the heat dissipation component must be temporarily fixed to it by a nut washer unit to prevent it from falling off. This nut washer unit is made of plastic and has at least two extended protrusions. These extended protrusions pass through pre-drilled through holes in the heat dissipation component for their fixation. The ends of the extended protrusions are then melted and flattened by high-temperature melting to form stop portions, preventing the extended protrusions from being pulled out. This secures the nut washer to the heat dissipation component.

[0005] However, the extended protrusion has problems such as wasted time and complicated processes due to the time required for high-temperature melting and cooling, and the fact that it can be reworked. Therefore, the existing drawbacks are the target of this case. Summary of the Invention

[0006] One object of the present invention is to provide a heat dissipation assembly with a fixed structure that is easy to assemble and disassemble.

[0007] One object of the present invention is to provide a fixing structure for a heat sink assembly in which a nut is fixed to a base and combined with a screw-locking element.

[0008] One object of the present invention is to provide a support unit for a fixed structure that combines a nut fixed to a base with a screw locking element.

[0009] To achieve the above objectives, the present invention provides a fixing structure for a heat dissipation assembly, comprising: a base having an upper surface and a lower surface, at least one through hole and a plurality of connecting holes, the at least one through hole axially penetrating the upper surface and the lower surface, the plurality of connecting holes being located around the outer periphery of the through hole, each connecting hole having a fitting member arranged in a horizontal direction; at least one support unit including a body having an upper side and a lower side, the lower side having a plurality of connecting protrusions corresponding to the connecting holes, each connecting protrusion having a channel corresponding to the fitting member, the two ends of the channel having a lower recess and a higher recess respectively, the channel spirally extending from the lower recess to the higher recess along a radial direction of the connecting protrusion, wherein the support unit rotates to move the channel relative to the fitting member from the lower recess to the higher recess, so that the plurality of connecting parts are axially inserted into the plurality of connecting holes, and the lower side of the support unit abuts against the upper surface of the base.

[0010] The aforementioned through holes are respectively located at the four corners of the base.

[0011] The aforementioned body has a protruding wall on its upper side, which defines a bearing space for bearing a receiving component. The protruding wall has a plurality of limiting elements that cooperate with the receiving component. The body has a connecting hole that passes through the upper and lower sides to connect to the bearing space. The connecting hole allows a connector to pass through and connect to the receiving component.

[0012] The aforementioned connecting holes are arc-shaped, and the shape of the plurality of protrusions of the bearing unit matches the shape of the plurality of connecting holes to be arc-shaped.

[0013] The aforementioned channel has at least one intermediate recess located between the lower recess and the higher recess.

[0014] The aforementioned support unit has a pivot groove and an elastic member. The pivot groove is formed on the outer edge of the body. The elastic member has a pivot portion, an operating portion and a locking portion. The pivot portion is pivotally disposed in the pivot groove. The operating portion extends from one end of the pivot portion and has a free end pivotally connected to the pivot groove. The locking portion extends from the other end of the pivot portion.

[0015] The lower surface of the aforementioned base is attached to a heating element on a main board. The main board has a base frame located outside the heating element and has a plurality of hooks and a connector. Each hook is engaged by the locking part of the elastic element.

[0016] The upper surface of the aforementioned base is provided with a plurality of heat dissipation fins or heat pipes.

[0017] The aforementioned base is made of a solid heat-conducting metal, or a heat spreader or a flat heat pipe, and has a chamber containing a capillary structure and a working fluid.

[0018] A fixed-structure support unit includes: a body comprising: an upper side having a protruding wall defining a support space for supporting a receiving member, and the protruding wall having a plurality of limiting elements cooperating with the receiving member; a lower side having a plurality of engaging protrusions, each engaging protrusion having a channel, the two ends of the channel having a lower recess and a higher recess respectively, the channel extending radially from the lower recess to the higher recess along a radial direction of the engaging protrusion; a connecting hole penetrating the upper and lower sides to connect to the support space, the connecting hole allowing a connector to pass through and connect to the receiving member.

[0019] The aforementioned channel extends spirally or obliquely from the lower recess to the higher recess.

[0020] The aforementioned channel has at least one intermediate recess located between the lower recess and the higher recess.

[0021] The aforementioned body is provided with a pivot groove and an elastic element. The pivot groove is formed on the outer edge of the body. The elastic element has a pivot portion, an operating portion and a locking portion. The pivot portion is pivotally disposed in the pivot groove. The operating portion extends from one end of the pivot portion and has a free end pivotally connected to the pivot groove. The locking portion extends from the other end of the pivot portion.

[0022] Based on the above, the present invention provides a fixing structure that combines a receiving part (nut) with a connecting part (screw element) to fix the receiving part (nut) on the base, and the fixing structure is easy to assemble and disassemble with the heat dissipation assembly.

[0023] The following figures are intended to facilitate a better understanding of the invention. These figures will be described in detail herein and form part of the specific embodiments. The specific embodiments described herein, with reference to the corresponding figures, are used to explain the specific embodiments of the invention and to illustrate the working principle of the invention. Attached Figure Description

[0024] Figure 1 This is a first three-dimensional exploded view of the main body of the present invention;

[0025] Figure 2 This is a second three-dimensional exploded view of the main body of the present invention;

[0026] Figure 3 This is a magnified view of one corner of the base;

[0027] Figure 4 This is a first schematic diagram of the three-dimensional assembly of the main body of the present invention;

[0028] Figure 5 This is a second schematic diagram of the three-dimensional assembly of the main body of the present invention;

[0029] Figure 6This is a three-dimensional sectional view of the main body of the invention;

[0030] Figure 7 This is a cross-sectional schematic diagram of another embodiment of the base of the present invention;

[0031] Figures 8 to 9 These are cross-sectional schematic diagrams of some other embodiments of the present invention;

[0032] Figure 10 This is a front view of the carrier unit of the present invention;

[0033] Figure 11 This is a front view of the carrier unit of the present invention;

[0034] Figure 12 This is a bottom view of the support unit of the present invention;

[0035] Figure 13 This is a schematic diagram of another embodiment of the channel of the bearing unit of the present invention;

[0036] Figure 14 This is a schematic diagram of the continuous operation of the bearing unit and the base of the present invention;

[0037] Figure 15 This is a schematic diagram of the continuous operation of the bearing unit and the base of the present invention.

[0038] Figure 16 This is an exploded view of the present invention mounted on the motherboard;

[0039] Figure 17 This is a first front view schematic diagram of the present invention mounted on the motherboard;

[0040] Figure 18 This is a second front view schematic diagram of the present invention mounted on the motherboard.

[0041] Reference numerals in the attached drawings: Base 10; Chamber 101; Capillary structure 102; Working fluid 103; Upper surface 11; Lower surface 12; Through hole 13; Connecting hole 14; Mating part 141; Heat dissipation fins 15; Heat pipe 16; Heat pipe chamber 161; Supporting unit 20; Body 21; Upper side 211; Protruding wall 2111; Supporting space 2112; Limiting element 2113; Lower side 212; Connecting protrusion Part 213; Channel 2131; Low recess 2132; High recess 2133; Middle recess 2134; Pivot groove 215; Receiving part 22; Receiving hole 221; Flange 222; Connecting hole 24; Main board 30; Heating element 31; Base frame 32; Hook 321; Connector 322; Elastic part 41; Pivot part 411; Operating part 412; Snap-fit ​​part 413; Free end 414. Detailed Implementation

[0042] The above-mentioned objectives of the present invention and its structural and functional characteristics will be described with reference to the preferred embodiments shown in the accompanying drawings.

[0043] The heat dissipation assembly described below includes a substrate, a heat sink or radiator or water-cooled plate or vapor chamber or flat heat pipe and / or fin group or heat pipe (group) connected or disposed thereto. The heat dissipation assembly is used to contact a heat-generating component on a circuit board, such as a CPU or MCU or other heat source, to help the heat-generating component de-heat and maintain the normal operation of the heat-generating component.

[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the present invention includes a base 10 and at least one supporting unit 20. The base 10 has an upper surface 11 and a lower surface 12, at least one through hole 13, and a plurality of connecting holes 14. For example, four through holes 13 are disposed at the four corners of the base 10 and axially penetrate the upper surface 11 and the lower surface 12. At least two connecting holes 14 are provided around the outer periphery of each through hole 13. In one embodiment, the connecting hole 14 is a through hole and axially penetrates the upper and lower surfaces 11 and 12 of the base 10, but is not limited thereto; the connecting hole 14 can also be a blind hole that only penetrates the upper surface 11 of the base 10. A fitting member 141 is provided within the connecting hole 14, and the fitting member 141 is arranged in a horizontal direction, that is, laterally. In one embodiment, both ends of the fitting member 141 are connected to the two opposing inner walls of the connecting hole 14. However, is not limited thereto; the fitting member 141 can also have one end connected to an inner wall of the connecting hole 14, and the other end being a free end.

[0045] Furthermore, the aforementioned base 10 may be made of a solid heat-conducting metal (e.g., gold, silver, copper, aluminum, stainless steel, titanium, commercially pure titanium, or its alloys), and a plurality of heat dissipation fins 15 (e.g., ...) are provided on the upper surface 11 of the base 10. Figure 6 As shown in Figure 1H, the plurality of heat dissipation fins 15 are integrally formed with or separately bonded to the base 10. However, it is not limited to this, and at least one heat pipe 16 is provided on the upper surface 11 of another embodiment of the base 10 (as shown in Figure 1H).

[0046] like Figure 7 and Figure 9 As shown, in some other embodiments, the base 10 is a heat spreader or a flat heat pipe with a chamber 101 containing a capillary structure 102 and a working fluid 103. The upper surface 11 of the base 10 is provided with a plurality of heat dissipation fins 15 or heat pipes 16. The heat pipe 16 has a heat pipe chamber 161 that can be selectively connected to or not connected to the chamber 101 of the base 10.

[0047] like Figure 10 , Figure 11 and Figure 12 And also refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the at least one bearing unit 20 is a nut pad. In this embodiment, four bearing units 20 are respectively corresponding to the through holes 13 at the four corners of the base 10. Each support unit 20 includes a body 21 having an upper side 211 and a lower side 212. The upper side 211 forms a protruding wall 2111, which defines a support space 2112 to support a receiving member 22, such as a nut. The receiving member 22 has a receiving hole 221 through which it passes. The receiving hole 221 has an internal thread, and one end of the receiving member 22 (shown as the bottom end in the figure) forms a flange 222 that protrudes radially. The protruding wall 2111 has a plurality of limiting elements 2113 that cooperate with the receiving member 22. In this embodiment, two opposing limiting elements 2113, such as barbs, are provided on the inner side of the protruding wall 2111. The limiting elements 2113 and the flange 222 of the receiving member 22 form axial displacement interference to prevent the receiving member 22 from being pulled out of the support space 2112 along an axial direction (e.g., upward). The body 21 has a connecting hole 24 that passes through the upper side 211 and the lower side 212 to connect the bearing space 2112. The connecting hole 24 allows a connector (such as a screw or screw post) to pass through and connect to the receiving hole 221 of the receiving member 22.

[0048] The lower side 212 is provided with a plurality of engaging protrusions 213 corresponding to the engaging holes 14. In this embodiment, a pair of engaging protrusions 213 are provided on the lower side 212, each corresponding to one of the two engaging holes 14. The pair of engaging holes 14 surrounding each of the aforementioned through holes 13 are corresponding arc shapes, that is, the concave sides of the two arcs correspond to each other. The shape of the plurality of engaging protrusions 213 is an arc shape corresponding to the shape of the engaging holes 14.

[0049] Furthermore, each engaging protrusion 213 is provided with a channel 2131 to engage with the engaging member 141. The two ends of the channel 2131 are respectively provided with a low recess 2132 and a high recess 2133. The channel 2131 extends spirally or obliquely from the low recess 2132 to the high recess 2133 along a radial direction of the engaging protrusion 213.

[0050] Please continue to refer to this. Figure 14 and Figure 15 As shown, please refer to the following: Figure 4 and Figure 5As shown, when the body 21 of the support unit 20 rotates, the channel 2131 moves relative to the mating member 141 from the lower recess 2132 to the higher recess 2133, so that the plurality of mating protrusions 213 are axially inserted into the plurality of mating holes 14, and the lower side 212 of the support unit 20 abuts against the upper surface 11 of the base 10. If the operation is reversed, and the body 21 of the support unit 20 is rotated in the opposite direction, the channel 2131 moves relative to the mating member 141 from the higher recess 2133 to the lower recess 2132, so that the plurality of mating protrusions 213 are axially disengaged from the plurality of mating holes 14.

[0051] In other implementations, such as Figure 13 As shown, the aforementioned channel 2131 has at least one intermediate recess 2134 located between the lower recess 2132 and the higher recess 2133. When the body 21 of the supporting unit 20 rotates, it causes the channel 2131 to move relative to the mating member 141 from the lower recess 2132 to the intermediate recess 2134, pause temporarily, and then move from the intermediate recess 2134 to the higher recess 2133, forming a two-stage movement, so that the user can grasp the rotation state of the supporting unit 20. In another feasible embodiment, the channel 2131 has several intermediate recesses 2134 located between the lower recess 2132 and the higher recess 2133, so that the channel 2131 relative to the mating member 141 forms a multi-stage movement.

[0052] Re-reference Figure 10 and Figure 11 As shown, please refer to the following: Figures 1 to 3 As shown, the main body 21 of the supporting unit 20 is provided with a pivot groove 215 and an elastic member 41. The pivot groove 215 is formed on the outer edge of the main body 21. The elastic member 41 has a pivot portion 411, an operating portion 412 and a locking portion 413. The pivot portion 411 is pivotally mounted on the pivot groove 215. The operating portion 412 extends from one end of the pivot portion 411 and has a free end 414 pivotally connected to the pivot groove 215. The locking portion 413 extends from the other end of the pivot portion 411. The operating portion 412 is used to adjust the back-and-forth swing of the locking portion 413.

[0053] Please continue to refer to this. Figures 16 to 18As shown, a motherboard (circuit board) 30 has a heating element 31 on it. A base frame 32 is arranged around the outside of the heating element 31. The base frame 32 has a plurality of hooks 321 and a plurality of connectors 322. The plurality of connectors 322 (e.g., screw elements or screw posts) protrude upward and have external threads at their ends. The base 10 of the heat dissipation assembly of the present invention is disposed on the base frame 32 of the motherboard 30, such that each connector 322 is locked into the receiving hole 221 of the receiving part 22 (e.g., nut) of each bearing unit 20, and the external thread of the connector 322 is engaged with the internal thread in the receiving hole 221, so that the lower surface 12 of the base 10 is attached to the heating element 31 of the motherboard 30, and the operating part 412 of the elastic member 41 is adjusted to make the locking part 413 swing and lock the hooks 321 of the base frame 32.

[0054] Based on the above, the present invention provides a fixing structure that combines the receiving part 22 (nut) with the connecting part (screw element) to fix the base 10, and the fixing structure is easy to assemble and disassemble with the heat dissipation assembly.

[0055] The above description is illustrative only and not restrictive of the present invention. Those skilled in the art will understand that many modifications, variations or equivalents can be made without departing from the spirit and scope defined by the claims, and all such modifications, variations or equivalents will fall within the protection scope of the present invention.

Claims

1. A fixed-structure support unit applied to a base, the base having at least one through hole and a plurality of connecting holes located around the outer side of the through hole, characterized in that, include: One entity, comprising: On one upper side, there is a protruding wall that defines a bearing space for bearing a receiving member, and the protruding wall has a plurality of limiting elements that cooperate with the receiving member; On the lower side, there are multiple engaging protrusions corresponding to the engaging holes of the base. Each engaging protrusion is provided with a groove corresponding to a fitting member in the engaging hole. The two ends of the groove are respectively provided with a low recess and a high recess. The groove extends from the low recess to the high recess along a radial direction of the engaging protrusion. The fitting member moves from the low recess to the high recess along the groove so that the engaging protrusion is axially inserted into the engaging hole. The lower side abuts against an upper surface of the base. A through hole extends through the upper and lower sides to connect the bearing space, and a connector passes through the through hole to connect to the receiving part.

2. The fixed structure bearing unit as described in claim 1, characterized in that: The channel extends spirally or obliquely from the lower recess to the higher recess.

3. The fixed structure bearing unit as described in claim 1, characterized in that: The channel is provided with at least one intermediate recess, which is located between the lower recess and the higher recess.

4. The fixed structure bearing unit as described in claim 1, characterized in that: The body has a pivot groove and an elastic member. The pivot groove is formed on the outer edge of the body. The elastic member has a pivot portion, an operating portion and a locking portion. The pivot portion is pivotally disposed in the pivot groove. The operating portion extends from one end of the pivot portion and has a free end pivotally connected to the pivot groove. The locking portion extends from the other end of the pivot portion.

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