JP3133001U - Heat sink latch - Google Patents

Abstract

Disclosed is a heat sink engaging tool such as a semiconductor device which is small and light and prevents deformation.
A frame 10, an operation member 20, and a hooking member 30 are provided. The frame is installed on a heat sink 40 on a device 50 mounted on a substrate 60, and has a sliding surface with an arcuate side surface of the operation member 20. Provided protrusion 12 is provided. The operation member 20 includes a main body and a handle 22, operates the handle to rotate the main body on the sliding surface, and moves the engagement member 30 up and down. The engaging member is composed of first and second elastic bodies 32a and 32b which are curved left and right first elastic rods 321a and 321b, curved portions 322a and 322b, and second elastic rods 323a and 323b folded back at the curved portions. As a result, the elastic modulus can be reduced and the space can be reduced.
[Selection] Figure 1

Description

  The present invention relates to a hook for a heat sink.

Sliding holes are respectively provided on opposite sides of the heat dissipating member of the well-known “heat dissipating member engaging device structure” as described in the following Taiwanese patent documents, and the engaging devices are respectively installed. The hooking tool includes a hooking plate, an operating rod, and a handle. Among them, the latch plate is constituted by a plate body, and is installed slidably in the slide hole of the heat radiating member at the uppermost stage. An elastic portion is provided in the middle of the plate body, and a hooking hole is provided in the bottom portion of the plate body to engage with the engagement hooks of the heat radiating member support base.
The operation rod includes an interlocking plate portion, and the interlocking plate portion is decentered from the central axis at the uppermost portion of the latching plate, and the outer edge of the interlocking plate portion is installed across the uppermost end plate surface of the heat dissipation member. Rotate the hook to raise the latch. The hooking plate and the bottom of the heat dissipating member are securely fastened on the device via the elastic force to the engagement hook of the heat dissipating member support. The operating rod includes an interlocking plate portion, is inserted into the shaft hole, is installed with the shaft hole being shifted to the interlocking plate portion side, and is pivotally mounted on the uppermost stage of the hooking plate with a pivot pin. The handle extends outward from the edge of the interlocking plate portion. Moreover, the elastic part of the middle stage of the above-described hooking plate has a goose neck shape, a “<” shape, an “S” shape, or other similar shapes.
Taiwan Utility Model Registration No. 0922205232 “Heat Dissipation Member Structure” Japanese translation of PCT publication No. 2002-516031 Japanese Patent No. 2563182

  The problem to be solved is that in order to make effective use of the limited space of onboard equipment such as personal computers, it is necessary to reduce the occupied volume and reduce the weight. In view of the problem that the heat sink mounting structure for heat dissipation and cooling is large and is subject to problems such as being easily deformed due to the application of force, it is to make these simple, lightweight, and compact.

The present invention includes a frame, an operation member, and a hooking member. Among them, the frame is installed on the upper surface of the heat sink, and the protrusion is provided. The protrusion includes a sliding surface with respect to the operation member. The operating member includes a main body having a sliding surface in contact with the sliding surface and a handle, and operates the handle to move the main body relative to the sliding surface. The engaging member includes an interlocking body, is inserted into the slit of the protruding portion and pivoted with respect to the main body, and can be moved up and down by a handle operation.
This interlocking body is provided with a symmetric first elastic body and a second elastic body extending in the vertical direction opposite to the lower side of the interlocking body. The leaf spring structure is formed by extending the second elastic body to the left and right and folding back at the bent portion, thereby exhibiting the spring characteristics of the bent portion on a curved surface with a gentle curvature and without deformation.

    The latching device of the heat sink of the present invention is compact and reliably exhibits a fastening force without being deformed as a structure in which the heat sink is fastened by a member having a resilient force.

  In order to improve the drawbacks of the above-mentioned known engaging devices, the present invention reduces the size so that it can be accommodated in a narrow space, and is sufficient for the heat sink without relying on the elastic force of the frame of the hooking device itself. Adopting a structure that exhibits a strong fastening force and does not cause deformation.

For this reason, the latching tool of the heat sink of this invention comprises a frame, an operation member, and a latching member. Among them, the frame is installed on the upper surface of the heat sink, and projecting portions having sliding surfaces that rotate in contact with the arcuate side surface of the operation member are provided on both sides. The operation member includes a main body and a handle connected to the main body. The main body is placed on the sliding surface described above, and the main body is rotated on the sliding surface by operating the handle. The engaging member includes an interlocking body, the interlocking body is inserted into the slit formed in the above-described protruding portion and protrudes upward, and is pivotally provided by a pivot that penetrates the operation member main body. Symmetrically, the first elastic body and the second elastic body are formed by extending in the horizontal direction, and the first and second elastic bodies are connected to the front end of the hooked pulling body, and the board on which the engaging pulling body and the heat sink are mounted. The heat sink is fastened and fixed by engaging with the upper engagement hook.
The first and second elastic bodies have a curved elastic structure that is extended to the left and right, and by applying a fastening force to the heat sink by its elastic force, the degree of bending of the elastic structure is moderated and damage as a spring member is caused. The occupied volume was reduced as a form along the side surface of the heat sink.
The above objectives and their structural and functional characteristics will be described below in the embodiments shown in the figures.

  As shown in FIGS. 1 and 2, the heat sink hook provided by the present invention includes a frame 10, an operation member 20, and a hook member 30. Among them, the frame 10 is in the form of a frame body that encloses a space, and hooks 11 are provided at corresponding positions on two opposite sides of the frame, and are installed by engaging a blower fan (not shown). Further, projecting portions 12 are respectively provided on the outer sides of the two opposite sides of the frame 10, and the projecting portions have upper surfaces as sliding surfaces 121 with the operation member, and the projecting portions 12 are provided on both sides of the sliding surfaces 121. Insertion slits 122 and 123 penetrating vertically are provided.

  In this embodiment, the operation member 20 includes two sets, and includes a main body 21 and a handle 22 connected to the main body 21. The main body 21 is installed on the sliding surface 121, and the handle 22 is operated to rotate the main body. Slid and rotate on the sliding surface 121.

  As shown in the figure, the main body 21 is a circular ring-shaped body, provided with guide grooves 211 penetrating the main body 21, and between the first end 212 and the second end 213 at both ends of the guide groove 211 from the first end 212. The main body 21 is eccentric in the radial direction, extends through the curved portion 214, and communicates with the second end 213.

  The above configuration does not limit the present invention, and the main body 21 may be an eccentric ring-shaped body. Further, the sliding surface 121 is an arc surface recessed inward, and the main body 21 rotates stably on the sliding surface 121 in surface contact with the main body 21.

  In the present embodiment, the above-described engaging member 30 is composed of two sets. The first elastic body 32a and the second elastic body 32b are symmetrically extended at the opposite positions below the interlocking body 31 by extending the interlocking body 31 in the longitudinal direction. Is provided. A hooking and pulling portion 33 is connected to the tips of the first and second elastic bodies 32a and 32b. The interlocking body 31 is composed of two opposing parallel plates in the figure, and the end provided with the pivot hole 311 is inserted into the insertion slits 122 and 123 of the projecting portion 12 of the frame to The operation member 20 moves the interlocking body 31 up and down by installing the pivot 70 in the pivot hole 311 and the guide groove 211 by installing the pivot 70 relative to both sides. Alternatively, for example, the main body 21 may be an eccentric ring or a circular ring, the interlocking body 31 may be pivoted at an eccentric position of the main body 21 (not shown), and the interlocking body 31 may be moved up and down.

The first and second elastic bodies 32a and 32b are folded back at the first elastic rods 321a and 321b, the bending portions 322a and 322b, respectively, which are coupled to the interlocking body 31, and the bending portions, as shown in FIG. Elastic ridges 323a and 323b are formed, and open or squeeze through the curved portion to have elasticity.
The distal ends of the second elastic rods 323a and 323b extend downward and serve as hook connection legs 324a and 324b having hook holes 3241a and 3241b.

  Convex portions 331 and 332 are provided at locations corresponding to the hook holes 3241a and 3241b at the left and right ends of the upper end of the engaging traction member 33, respectively, and an engaging hole 333 is provided at the lower stage of the engaging traction member 33, By inserting 332 into hook holes 3241a and 3241b of the first and second elastic bodies 32a and 32b below the engaging member, the first and second elastic bodies 32a and 32b are connected to the left and right sides of the engaging traction portion 33. The present invention is not limited to the above examples, and the first and second elastic bodies 32a and 32b may be shaped to be curved relative to each other, for example, U-shape or C-shape opposed to each other. Further, the second elastic bodies 32 a and 32 b may be integrally formed with the hooking and pulling body 33.

  As shown in FIGS. 3 and 4, in the present invention, the heat sink 40 is installed firmly on the surface of the heat generating unit 50. The heat sink 40 is made of a metal material having good thermal conductivity such as aluminum or copper, and a plurality of heat sinks 40 are manufactured. Provide fins to increase heat dissipation area. The type and shape of the heat sink 40 are not limited to those shown in the figure, and may be various types such as aluminum extrusion, press molding and die forging, and may further be provided with a heat conducting tube. Protrusions 41 are provided on opposite sides of the heat sink 40 and are installed on the heat generating unit 50. The bottom surface of the heat sink 40 and the uppermost surface of the heat generating unit 50 are in close contact with each other. Helps to dissipate heat from the heat generating unit 50

  The aforementioned heat generating unit is, for example, a CPU and is installed on the circuit board 60. A fitting base 61 is provided on the circuit board 60, the fitting base 61 is formed so as to surround the heat generating unit 50, and engaging hooks 62 and 63 are provided on two opposite sides of the fitting base 61, respectively. The engagement hooks 62 and 63 are engaged with the engagement holes 333 of the engagement pulling body 33 of the engagement member 30.

The heat sink 40 is installed on the heat generating unit 50 installed on the fitting base, the frame 10 is placed on the upper side of the heat sink 40, and both the hooking members 30 are arranged in the concave tank 411 between the protruding portions 41 on both sides of the heat sink 40.
Subsequently, the lower edge side of the frame 10 is placed on the protruding portion 41, the engaging member 30 is pulled down to press the heat sink 40, and the engaging holes 333 of the engaging traction body 33 are engaged with the engaging hooks 62 and 63 facing each other. Then, the heat sink 40 is securely fastened on the heat generating unit 50.

FIG. 5 shows an instruction diagram in a state in which the engaging member 30 is fastened. In this state, the first and second elastic bodies 32a of the engaging member 30 are received in response to the interlocking body 31 being pulled upward. 32b, the first elastic rods 321a and 321b and the second elastic rods 323a and 323b are opened by extending vertically through the curved portions 322a and 322b (shown by dotted lines in FIG. 7). Further, as shown in FIG. 6, when the force with which the engaging member 30 is pulled upward is loosened, the first elastic rods 321a and 321b and the second elastic rods 323a and 323b are elastically recovered through the curved portions 322a and 322b, respectively ( As shown in the solid line in FIG. 7, the elastic bodies 32a and 32b are restored to the original state.
In this way, by operating the handle 22 of the operating member 20 and moving the engaging member up and down under the action of the elastic force by the first and second elastic bodies 32a and 32b, the fastening force of the engaging member 30 is The heat sink is fastened or loosened and can be removed.
The action of these elastic forces is adjusted by the magnitude of the bending degree R angle of the bending portions of the first and second elastic bodies 32a and 32b of the engaging member, and the first and second elastic bodies 32a and 32b are left and right. Symmetrically balanced with each other and exerts traction force. For this reason, R can be made larger and the elastic coefficient can be made smaller, and since it is arranged along the side surface of the heat sink, its occupied area (space) can be made smaller.

As described above, the latching device for the heat sink of the present invention exhibits excellent operational effects due to the novel configuration.
The examples cited in the above description are only preferred embodiments of the present invention, and all changes in the method, shape, structure and apparatus of the present invention are within the scope of the present invention.

It is a three-dimensional disassembly instruction diagram of the hook of the present invention. It is a three-dimensional assembly instruction diagram of the hook of the present invention. FIG. 3 is a three-dimensional disassembly instruction diagram of the latching tool, the heat sink, and the heat generating unit assembly of the present invention. It is a three-dimensional assembly instruction diagram of the latching tool of the present invention, a heat sink and a heat generating unit assembly. It is a front indication figure which engaged the engagement hook with the engagement tool of the present invention. It is the front direction figure which loosened the engagement hook from the latching tool of this invention. It is an operation | movement instruction | indication figure which tightens or loosens the 1st, 2nd elastic body of the latching tool of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Frame 11 Hook 12 Protruding part 121 Sliding surface 122 Insertion slit 123 Insertion slit 20 Operation member 21 Main body 211 Guide groove 212 First end 213 Second end 214 Bending part 22 Handle 30 Engaging member 31 Interlocking body 311 Pivoting hole 32a First One elastic body 32b Second elastic body 321a First elastic rod 321b First elastic rod 322a Curved portion 322b Curved portion 323a Second elastic rod 323b Second elastic rod 324a Rod connection leg 324b Rod connection leg 3241a Hook hole 3241b Hook hole 33 Engagement Traction body 331 Convex part 332 Convex part 333 Engagement hole 40 Heat sink 41 Protrusion part 50 Heat generating unit 60 Circuit board 61 Fitting base 62 Engaging hook 70 Axis

Claims (13)

It consists of a frame, an operation member, and a hooking member.
The frame is disposed on the upper surface side of the heat sink, provided with a protruding portion on the outer side of the two opposite sides, and provided with a sliding surface in contact with the arcuate outer peripheral surface of the operation member on the upper surface of the protruding portion
The operation member includes a main body and a handle connected to the main body, the main body is disposed in contact with the above-described sliding surface, and the handle is rotated on the sliding surface by the rotation operation,
The engaging member includes an interlocking body that is inserted into the slit of the protruding portion and pivotally attached to the operating member,
The interlocking body is extended vertically and is extended relative to the left and right, and the first elastic body and the second elastic body that apply elastic force in the vertical direction are provided horizontally, and a heat sink is mounted at the tip. Connected to an engagement puller that engages a hook on the substrate,
A heat sink latch characterized by the above.   2. The heat sink engagement according to claim 1, wherein the sliding surface is formed with insertion slits on both sides thereof so that the upper portion of the interlocking body is inserted and protruded, and engaging members are arranged opposite to both sides of the main body. Ingredients.   The engagement member for the heat sink according to claim 1, wherein the interlocking member of the engaging member is pivotally arranged at a position eccentric from an arc center of the operation member main body.   4. The heat sink engagement device according to claim 1, wherein the operation member main body is an eccentric ring-shaped body.   4. The heat sink engagement device according to claim 1, wherein the operation member main body is a circular ring-shaped body.   The operation member main body has a circular ring shape and is provided with guide grooves penetrating the main body, and first and second ends at both ends of the guide groove extend from the first end in a radial direction of the main body. The heat sink according to claim 1, wherein the heat sink is connected to the end, the curved portion mediates between the first end and the second end, and the interlocking member is pivotally provided by a pivot that is guided through the guide groove. Hooks.   The hooking tool for a heat sink according to claim 1, wherein the hooking puller and the first and second elastic bodies are integrally molded.   The first and second elastic bodies are extended to provide a hook connection leg, the hook connection leg is provided with a hook hole, and convex portions that engage with the hook hole are provided on the left and right sides of the hooking tow body. The heat sink hook according to claim 1, wherein the heat sink hook is provided and connected.   The hooking device for a heat sink according to claim 1 or 8, wherein the first and second elastic bodies have a curved spring structure. The first and second elastic bodies each form a spring structure including a first elastic hook connected from the interlocking body, a bent portion, and a second elastic hook that is folded back and extended at the bent portion. The hook of the heat sink according to claim 1. The first and second elastic bodies each form a spring structure including a first elastic hook connected from the interlocking body, a bent portion, and a second elastic hook extending back and extending at the bent portion,
9. The heat sink latching device according to claim 8, wherein the tip of the hook connection leg is formed by extending the tip thereof downward.   The heat sink is characterized in that a convex portion and a concave tank therebetween are provided on opposite sides of the heat sink, the lower surface of the frame frame on the heat sink is applied to the upper side of the convex portion, and the engaging member is disposed in the concave tank. The hook of the heat sink according to claim 1.   The hooking device for a heat sink according to claim 1, wherein the sliding surface has a circular arc shape recessed inward.

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