CN101715282B - Fixing member - Google Patents

Abstract

A fixing component is used for fixing a radiator on a circuit board in a machine shell, and the radiator is attached to a heating component of the circuit board. The fixing component comprises a fixed seat arranged on the circuit board and a fixed holding piece pivoted on the side plate of the shell, when the fixed holding piece rotates towards the direction of the fixed seat, the group buckling part of the fixed holding piece is buckled with the buckling piece of the fixed seat, so that the radiator is attached to the heating component and is fixedly arranged on the circuit board.

Description

Fixed member

technical field

The invention relates to a fixing component, in particular to a fixing component for installing a radiator on a circuit board.

Background technique

With the increasing processing speed of today's computer computing systems, the operating capabilities of electronic components in computer devices, such as central processing units (Central Processing Unit, CPU) are constantly improving. When the computer device is under full load, the heat source generated by the electronic components also increases. If the heat source is not dissipated in time, it may cause a crisis of paralysis of the computer device. Therefore, how to solve the heat dissipation problem becomes an important issue. topic.

The current way to solve the heat dissipation problem of electronic components, such as taking the central processing unit as an example, usually installs a heat sink on the central processing unit for heat dissipation, and uses a fixing device to tightly press the heat sink on the central processing unit and fix it To prevent the radiator from slipping or loosening from the heat source, so as to effectively dissipate heat. Commonly used fixing devices use buckles or screw locks to fix the heat sink on the CPU. For example, in the form of a fastener, a fixing seat is set on the periphery of the central processing unit, and then the heat sink is attached to the heating surface of the central processing unit, and then the heat sink is applied by fastening the fastener and the fixing seat. The compressive action makes the heat sink be pressed and closely attached to the heating surface of the central processing unit, so that the heat sink is stably fixed on the fixing seat to achieve a better heat dissipation effect.

However, during the fastening process of the buckle and the fixing seat, the force applied by the buckle to the heat sink is uneven, so that the buckle cannot be in close contact with the CPU, thereby affecting the heat dissipation effect. What's more, due to improper application of force by the user, it is very easy to cause damage to the heat sink, circuit board or central processing unit.

In the screw locking method, a plurality of openings are provided on the heat sink, and screw holes corresponding to the openings are set on the circuit board provided with the central processing unit. When the heat sink is attached to the central processing unit The radiator is locked to the screw hole of the circuit board by a screw covered with a spring, so that the radiator is closely attached to the central processing unit. Although this method can effectively fix the heat sink on the central processing unit, it also has the problem of uneven application of force. At the same time, if the screws are locked too much, the circuit board is likely to break.

Therefore, in the prior art, due to uneven or improper force application, the heat sink cannot be effectively attached to the CPU, or the heat sink, the CPU and the circuit board are damaged. In addition, since components such as fasteners and screws are small components separated from the radiator and circuit board, it is very easy to lose them due to careless operation (such as dropping the ground) during the process of installing or disassembling the radiator. And then let the user produce unnecessary trouble when assembling.

Contents of the invention

In view of the above problems, the present invention provides a fixing member to improve the problem of damage to the central processing unit or the circuit board caused by uneven or improper force application during the operation process of the heat sink being fixed on the circuit board, as well as fixing The components of the structure are too complicated, and the components are easily lost due to careless operation.

The invention discloses a fixing component, which is used to install the heat sink on the circuit board in the casing, and at the same time make the heat sink and the heat-generating components on the circuit board adhere to each other. In addition to the circuit board, the casing also has a side board.

The fixing component of the present invention includes a fixing seat and a holder. The fixing seat is arranged on the circuit board and accommodates the heating component, and the fixing seat has a buckle on the other side of the side plate of the casing. The holder has a set of buckles corresponding to the buckle and two symmetrical elastic arms adjacent to two sides of the buckle. The elastic arms are pivotally arranged on the side of the side plate opposite to the fixing seat. When the heat sink is attached to the heating component, the elastic arm pivots toward the direction of the fixing seat, and is fastened to the buckle part of the fixing seat with the buckle part, and the elastic arm presses against the heat sink and fixes the heat sink to the circuit board on, so that the heat sink fits tightly and smoothly on the heating component.

In the fixing member disclosed in the present invention, when in use, the holder is pivoted towards the direction of the fixing seat, and the buckle section of the holder is used to fasten the buckle of the fixing seat, and the elastic arm firmly presses the radiator on the The fixing seat is fixed on the circuit board and closely fits with the heating element. This fixing method of the heat sink effectively averages the force applied to the heat sink, and at the same time avoids damage to circuit boards and other related components due to improper force application. And there is no need to use additional fixing buckles, and there is no need to use screw locking for fixing. Therefore, the fixing member of the present invention simplifies the complicated fixing methods in the prior art, and makes the operation more convenient for users .

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

Fig. 1 is a three-dimensional exploded schematic view of the first embodiment of the present invention;

Fig. 2 is a partial schematic view of the fixing seat of the first embodiment of the present invention;

Fig. 3 is a three-dimensional combined schematic view of the first embodiment of the present invention;

Fig. 4 is a partial schematic diagram of the fixing seat of the first embodiment of the present invention;

Fig. 5 is a three-dimensional exploded schematic view of the second embodiment of the present invention;

FIG. 6 is a partial schematic diagram of a fixing seat according to a second embodiment of the present invention;

FIG. 7 is a schematic perspective view of a second embodiment of the present invention; and

FIG. 8 is a partial schematic view of the fixing base of the second embodiment of the present invention.

Among them, reference signs

10 radiator

20 circuit board

30 Heating components

40 Chassis

41 Side panels

411 shaft hole

50 Fixed seat

501 through hole

51 Fasteners

510 hook

511 vertical segment

512 arc segment

513 Guide surface

514 Fastening part

520 Baffle

521 limit part

60 Holder

61 Buckle part

611 Fastening section

612 release segment

613 abutment section

62 elastic arm

621 Pivot section

622 Elastic segment

623 Compression section

Detailed ways

Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:

The fixing member of the present invention is used in electronic devices such as computers and video games, and is used to fix the radiator on the circuit board in the casing of the electronic device, so that the radiator can be closely attached to the heating element on the circuit board , so that the high-temperature heat generated by the heating components when the computer is running can be quickly released by the radiator, so as to avoid damage to the heating components due to overheating. The heating component refers to the central processing unit (CPU) or chip (chip), which is an electronic component that emits high-temperature heat when the computer is running. The above is just an example and is not limited thereto.

1 and 2 are three-dimensional schematic views of the first embodiment of the present invention. The fixing member disclosed in the first embodiment of the present invention is used to fix the radiator 10 on the circuit board 20 in the case 40 of the electronic device, and the case 40 of the electronic device has a plurality of shaft holes. 411 side panels 41 .

The fixing component of the present invention includes a fixing base 50 and a holder 60 . The fixing base 50 is a base with a through hole 501 in the center, and is fixed on the periphery of the heating element 30 of the circuit board 20 , so that the heating element 30 is housed in the fixing base 50 and exposed outside the through hole 501 . The fixing base 50 has a buckle 51 on the other side of the side plate 41 of the casing 40. The buckle 51 includes two hooks 510 and a baffle 520. The two hooks 510 are respectively arranged on the baffle 520. two opposite sides, and the hook 510 also has a vertical segment 511 and an arc segment 512, one end of the vertical segment 511 is connected to the fixed seat 50, and the other end is extended to form an arc segment 512, and the arc segment 512 A guiding surface 513 and a fastening portion 514 are formed on the outer surface and the inner surface respectively.

Please continue to refer to FIG. 1 and FIG. 2, the material of the holder 60 is selected from elastic metal materials, such as iron metal or copper metal, the holder 60 has a buckle portion 61 corresponding to the buckle 51, and adjacent to There are two elastic arms 62 on both sides of the buckle portion 61 , and the elastic arms 62 are connected to two ends of the buckle portion 61 in a symmetrical manner. Wherein, the buckle unit 61 also has two fastening sections 611 and a release section 612, the two ends of the release section 612 are respectively connected to the two fastening sections 611, and the elastic arm 62 has a pivot section 621, an elastic section 622 and One presses against the segment 623 . One end of the pivotal section 621 is pivotally installed in the shaft hole 411 of the side plate 41 of the casing 40, and the other end is connected with the elastic section 622. An end of the abutting section 623 not connected to the elastic section 622 is connected to the fastening section 611 of the buckle portion 61 , so that the holding member 60 forms a U-shaped structure. Therefore, when the pivoting section 621 pivots relative to the side plate 41 , it can drive the elastic section 622 , the pressing section 623 and the buckle part 61 to swing back and forth relative to the circuit board 20 inside the casing 40 .

Referring to Fig. 1, Fig. 3 and Fig. 4, according to the fixing member of the first embodiment of the present invention, the heat sink 10 is placed on the heating component 30 of the circuit board 20 during operation, and is attached to the heating component 30. Closed, the holder 60 pivots relative to the side plate 41, so that the elastic arm 62 and the buckle portion 61 move toward the fixing seat 50, when the elastic section 622 of the elastic arm 62 abuts against the side plate 41, and presses against the section When 623 is in contact with the radiator 10, a downward force is applied to the release section 612 of the buckle part 61 toward the fixing seat 50, so as to overcome the elastic force of the material itself of the elastic arm 62, so that the pressing section 623 of the elastic arm 62 The heat sink 10 is pressed on the heating component 30 and closely attached to the heating component 30 . Since the two elastic arms 62 of the holder 60 are arranged symmetrically to each other, the pressing sections 623 of the two elastic arms 62 are pressed against the radiator 10 at the same time, so that the pressing force acting on the radiator 10 can achieve an even force effect. .

When the pressing section 623 of the elastic arm 62 is pressed against the radiator 10 , the buckle portion 61 of the holder 60 abuts against the buckle 51 of the fixing seat 50 , and the buckle portion 61 is guided by the guide surface 513 of the hook 510 guide and slide into the buckle part 514 of the arc segment 512, so that the buckle part 61 is subjected to the reaction force formed by the pressing section 623 to resist the pressing force, and is held against the buckle part 514. Therefore, heat dissipation The device 10 is pressed against the fixing seat 50 by the elastic arm 62 of the holder 60, and is firmly fixed on the circuit board 20 by the buckle part 61 being supported by the fastening part 514 of the fixing seat 50, and is closely attached to the heating element. Component 30.

According to the fixing member disclosed in the present invention, the number of elastic arms in the holding part can be determined according to the type of radiator to be assembled, for example, the radiator fins are located on both sides of the radiator, For the type with a groove, a single elastic arm can be used to pivot on the side plate, and the pressing section of the elastic arm can fit in the groove, so that the heat sink can be pressed on the fixing seat.

Please refer to FIG. 5 and FIG. 6 which are schematic perspective views of the second embodiment of the present invention. The structure of the second embodiment of the present invention is substantially the same as that of the first embodiment, so only the differences between the two will be described below. The fixing member of the second embodiment of the present invention includes a fixing seat 50 and a holder 60, and the buckle 51 arranged on the fixing seat 50 has two hooks 510 and a baffle 520, and the two hooks 510 are respectively arranged on the baffle. Two opposite sides of the plate 520 and the baffle 520 have a limiting portion 521 . As shown in FIG. The holder 60 has a buckle portion 61 corresponding to the buckle 51 , and two elastic arms 62 adjacent to two sides of the buckle portion 61 , and the elastic arms 62 are symmetrically connected to two ends of the buckle portion 61 . Wherein, the buckle part 61 also has two fastening sections 611 and a resting section 613. Make the holder 60 form a U-shaped structure.

As shown in Figures 6 and 8, during operation, the heat sink 10 is placed and attached to the heating element 30 on the circuit board 20, and the holding member 60 arranged on the side plate 41 of the casing 40 is rotated to make the buckle part 61 moves towards the direction of the fixed seat 50, and leans against the hook 510 of the buckle 51 with the fastening section 611. At this time, a downward force is applied to the pressing section 623 of the elastic arm 62 toward the fixed seat 50, so that the assembly The fastening section 611 of the buckle part 61 is affected by the guide surface 513 of the hook 510, and is guided to slide into the fastening part 514 of the circular arc section 512, and at the same time, the abutment section 613 of the buckle part 61 is supported on the The limiting portion 521 of the baffle 520 makes the buckle portion 61 of the holder 60 be locked to the buckle 51 of the fixing base 50 . At the same time, the pressing section 623 of the elastic arm 62 presses the heat sink 10 on the heating element 30, and the elastic arm 62 forms a reaction force against the downward pressure applied towards the fixing seat 50, so that the fastening of the buckle part 61 The segment 611 and the abutting segment 613 are supported by the fastening portion 514 of the buckle 51 and the limiting portion 521 of the baffle 520 respectively.

Therefore, the heat sink 10 is tightly attached to the heating component 30 by being pressed by the elastic arm 62, and the buckle part 61 of the holder 60 is locked to the buckle part 51 of the fixing seat 50, so that the heat sink 10 is fixed. on the circuit board 20. And because the two elastic arms 62 provided on the holder 60 are arranged symmetrically to each other, the pressing sections 623 of the two elastic arms 62 are pressed against the radiator 10 at the same time, so that the pressing force applied to the radiator 10 is uniform. Distributed on the heat sink 10 to avoid damage to the circuit board 20 due to improper or uneven application of force during operation.

The fixing member disclosed in the present invention only needs to rotate the holder pivotally arranged on the side plate of the casing during operation, and press the heat sink on the heating component with the elastic arm of the holder, and the buckle part of the holder and the fixed The fastening parts of the seat are snapped together, so that the heat sink is fixed on the circuit board and closely attached to the heating component. Therefore, the fixing member of the present invention does not need to use additional fasteners (such as screws, fixing bolts and other components) to install and fix the radiator on the circuit board, and the components of the fasteners will not be produced during the operation. , the problem that it is easy to lose due to careless operation. At the same time, due to the use of two symmetrical elastic arms to suppress the radiator, when the radiator is fixed, the applied force on the radiator is averaged, which can effectively reduce the risk of damage to the circuit board and heating components caused by improper force application .

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (6)

1. A fixing member for mounting a heat sink on a circuit board, and making the heat sink and a heat generating component on the circuit board adhere to each other, the circuit board is arranged in a casing, and There is a side plate in the casing, and the side plate has a shaft hole. It is characterized in that the fixing member includes: A fixing seat is arranged on the circuit board and accommodates the heating element, and the fixing seat has a buckle on the other side of the side plate; and A retainer has a set of buckles corresponding to the buckle and at least one elastic arm, one end of the elastic arm is connected to the set of buckles, and the other end is pivotally arranged in the shaft hole of the side plate, and when the set of buckles When the portion is fastened to the buckle, the elastic arm is pressed against the heat sink, so that the heat sink is fixed on the circuit board and attached to the heating element. 2. The fixing member according to claim 1, wherein the elastic arm has a pivoting section, an elastic section and a pressing section in sequence, and the side plate has a shaft hole, and the pivoting section pivots It is arranged in the shaft hole and is connected with the pressing section by the elastic section, and the pressing section is used for pressing against the heat sink. 3. The fixing member according to claim 1, characterized in that, the buckle has at least one hook and a baffle, the hook is arranged on one side of the baffle, and the buckle part has at least one The fastening section is used for fastening the hook. 4. The fixing member according to claim 3, characterized in that, the hook also has a vertical section and an arc section, one end of the vertical section is connected to the fixing seat, and the arc section extends from the vertical section The other end of the straight section is extended, and the outer surface of the arc section forms a guiding surface, and the inner surface of the arc section forms a fastening part. 5 . The fixing member according to claim 3 , wherein the baffle plate has a position limiting portion, and the buckle section also has an abutment section, and the abutment section buckles the hook on the fastening section , hold on the limiting part. 6. The fixing member according to claim 1, wherein the holder has two elastic arms, the two elastic arms are symmetrically arranged on both sides of the buckle part, and one end of each elastic arm is connected The other end of the button group is pivotally arranged on the side plate.

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