CN217563980U

CN217563980U - Fastening device for electronic equipment, heat dissipation device and electronic equipment assembly

Info

Publication number: CN217563980U
Application number: CN202220936365.5U
Authority: CN
Inventors: 陈振业; 谈良; 吴家乐
Original assignee: Harman International Industries Inc
Current assignee: Harman International Industries Inc
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-10-11
Anticipated expiration: 2032-04-21

Abstract

A buckle device, a heat sink and an electronic device assembly for an electronic device are disclosed. The buckle device includes: a snap insert having a base and a plurality of engagement arms, each engagement arm having an arm body and an engagement arm protrusion; a snap receiver having a receiving hole and a hole engaging portion extending inwardly from an inner wall of the receiving hole, the snap device having an engaging position and a disengaging position, the engaging arm protrusion further including a first inclined surface on the first side and a second inclined surface on the second side, wherein in the engaging position, the first inclined surface of the engaging arm protrusion of each engaging arm engages with the hole engaging portion of the snap receiver. The heat sink includes a heat sink housing and a heat sink cover, and a snap device by which the heat sink cover is detachably connected to the heat sink housing. The electronic equipment assembly comprises electronic equipment and a heat dissipation device, wherein the heat dissipation device is connected with the electronic equipment and used for dissipating heat of the electronic equipment.

Description

Fastening device for electronic equipment, heat dissipation device and electronic equipment assembly

Technical Field

The utility model relates to a buckle device for electronic equipment, including this buckle device's heat abstractor to and electronic equipment subassembly including this heat abstractor.

Background

Many electronic devices, such as power amplifiers and the like, often require a heat sink comprising a fan and heat dissipating fins for dissipating heat. Such heat sinks typically include a cover that is connected to the heat sink housing by screws, conventional snap connections, or the like to define a heat dissipation channel with the heat sink housing.

Both screw connections and conventional snap connections have their advantages and disadvantages. For example, screw connections have the advantage that: screw connection is firm, the noise is little, can dismantle, and the shortcoming then lies in: the screw cost is high, and the assembly and disassembly time of the screw connection is long. The advantages of conventional snap connections are: the vibration noise is little, need not the screw, and is with low costs, and the shortcoming then lies in: difficult or impossible to disassemble non-destructively.

Therefore, there is a need for a connection device for an electronic device or a heat sink for an electronic device that has at least some of the following advantages: convenient disassembly, low cost and reliable connection.

SUMMERY OF THE UTILITY MODEL

The present invention aims to overcome at least some of the above problems in the prior art.

According to an aspect of the utility model, a buckle device for electronic equipment is provided, include: a snap insert having a base and a plurality of engagement arms extending from the base in a longitudinal direction of the snap insert, each engagement arm having an arm body and an engagement arm protrusion protruding outward from the arm body near a distal end of the arm body; a snap receiver having a receiving hole and a hole engaging portion extending inwardly from an inner wall of the receiving hole, wherein the snap device has an engaged position in which the snap insert is engaged with the snap receiver and a disengaged position in which the snap insert is disengaged from the snap receiver, wherein the engaging arm protrusion includes a first side proximate to the base portion and a second side distal from the base portion, the engaging arm protrusion further includes a first inclined surface on the first side and a second inclined surface on the second side, wherein in the engaged position the plurality of engaging arms of the snap insert are at least partially received within the receiving hole of the snap receiver and the first inclined surface of the engaging arm protrusion of each engaging arm engages with the hole engaging portion of the snap receiver.

According to one or more embodiments of the present invention, the snap insert has a longitudinal axis passing through a center of the snap insert and extending in a longitudinal direction of the snap insert, the first inclined surface having a linear shape in a section through the longitudinal axis.

According to one or more embodiments of the present invention, in a cross section through the longitudinal axis, the second inclined surface has a linear shape.

According to one or more embodiments of the present invention, in a cross-section through the longitudinal axis, the angle of the first inclined surface with respect to the longitudinal axis is 30-60 degrees and/or the angle of the second inclined surface with respect to the longitudinal axis is 30-60 degrees.

According to one or more embodiments of the present invention, in a cross-section through the longitudinal axis, the angle of the first inclined surface with respect to the longitudinal axis is 40-50 degrees and/or the angle of the second inclined surface with respect to the longitudinal axis is 40-50 degrees.

According to one or more embodiments of the present invention, the engagement arm protrusion further comprises a protrusion top between the first inclined surface and the second inclined surface, the engagement arm protrusion further comprises a first transition surface between the first inclined surface and the outer surface of the arm body, a second transition surface between the first inclined surface and the protrusion top, a third transition surface between the protrusion top and the second inclined surface, the first transition surface, the second transition surface and/or the third transition surface being a smooth curved surface.

According to one or more embodiments of the present invention, in the engaged position, the plurality of engagement arms are elastically deformed inward, and the base portion of the snap insert abuts the snap receiver.

According to one or more embodiments of the present invention, the receiving hole of the snap receiver is a circular hole, the hole engaging portion is an annular protrusion extending inwardly from an inner wall of the receiving hole, and the plurality of engaging arms of the snap insert are two engaging arms, three engaging arms, or four engaging arms equally spaced apart in a circumferential direction around the longitudinal axis.

According to another aspect of the present invention, a heat dissipation device for an electronic device is provided, the heat dissipation device including a heat dissipation device housing and a heat dissipation device cover, the heat dissipation device further including a plurality of fastening devices for the electronic device, the heat dissipation device cover being detachably connected to the heat dissipation device housing through the fastening devices.

According to one or more embodiments of the present invention, the snap insert of the snap device is a plastic piece integrally formed with the heat sink cover, and the snap receiver of the snap device is integrally formed with the heat sink housing.

According to another aspect of the utility model, an electronic equipment subassembly is provided, its characterized in that includes electronic equipment and heat abstractor, heat abstractor with electronic equipment links to each other, is used for right electronic equipment dispels the heat.

According to one or more embodiments of the present invention, the electronic device is a power amplifier.

Drawings

Fig. 1A and 1B show exploded views of an electronic device assembly in accordance with one or more embodiments of the present invention;

fig. 2 shows an exploded view of a heat sink in accordance with one or more embodiments of the present invention;

fig. 3 is a view of a buckle device according to one or more embodiments of the present disclosure, wherein the buckle device is in a disengaged position;

fig. 4A is a front view of a buckle device according to one or more embodiments of the present invention, wherein the buckle device is in an engaged position;

FIG. 4B is a cross-sectional view of the snap device shown in FIG. 4A taken along the longitudinal axis x;

FIG. 4C is an enlarged view of the dashed circle portion of FIG. 4B;

fig. 5A is a view of a buckle device according to the present invention, showing the maximum allowable tolerance of the buckle device;

fig. 5B is a view of the snap device of the comparative embodiment, showing the maximum allowable tolerance of the snap device of the comparative embodiment.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Unless defined otherwise, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The utility model provides a buckle device for electronic equipment, it includes buckle plug-in components and buckle receiving piece. In the engaged position of the snap means, the snap insert engages with the hole engaging portion on the snap receiver by means of the first inclined surface on the engaging arm protrusion thereof. Since the first inclined surface engaging with the hole engaging portion on the snap receiver is inclined, the snap insert is not locked in the snap receiver but can be pulled out from the snap receiver under a certain pulling force. Thus, in addition to the advantages of conventional snap devices (e.g., no screws required, low cost), the snap device of the present invention can also be conveniently disassembled. In addition, the snap according to the invention also has the advantage of allowing large tolerances, since the first inclined surface engaging with the hole engaging portion on the snap receiving part is inclined. This further reduces the production costs of the snap means. The above-mentioned advantages of the buckle device of the present invention are particularly advantageous when used in a heat sink for an electronic device for connecting a heat sink cover to a heat sink housing.

Fig. 1A and 1B show exploded views of an electronic device assembly 10 in accordance with one or more embodiments of the present invention. The electronic device assembly 10 includes an electronic device 12 and a heat sink 20 mounted on the electronic device 12 for dissipating heat from the electronic device 12. The heat sink 20 includes a heat sink housing 22, a plurality of heat dissipating fins 24 integrally formed with the heat sink housing 22 and extending from the heat sink housing 22. The heat sink 20 also includes a fan (not shown) and a heat sink cover 28. The heat sink cover 28 is connected to the heat sink housing 22 by a snap fit 100 for defining a heat sink channel of the heat sink 20. Heat dissipating fins 24 are disposed within the heat dissipating channels. The fan of the heat sink 20 pushes cooling air through the heat dissipation channel to cool the heat dissipation fins 24 in the heat dissipation channel, thereby cooling the electronic device 10. Fig. 2 shows an exploded view of a heat sink 20 according to one or more embodiments of the present invention.

Fig. 3 is a view of buckle device 100 according to one or more embodiments of the present disclosure, where buckle device 100 is in a disengaged position. Fig. 4A is a front view of a buckle device 100 according to one or more embodiments of the present invention, wherein the buckle device 100 is in an engaged position; fig. 4B is a cross-sectional view of the snap device 100 shown in fig. 4A, taken along the longitudinal axis x through the engagement arm 120 of the snap insert 110 of the snap device 100; fig. 4C is an enlarged view of a dotted circle portion of fig. 4B. As shown in fig. 4A and 4B, the buckle device 100 has a longitudinal axis x. The longitudinal axis x runs through the center of the buckle device 100 and extends in the longitudinal direction of the buckle device 100. In the illustrated embodiment, the receiving hole of the snap receiver 160 is a circular hole, and then the longitudinal axis x of the snap device 100 passes through the center of the receiving hole of the snap receiver 160. The longitudinal axis x may also be referred to as a longitudinal axis of the snap insert 110 and/or a longitudinal axis of the snap receiver 160 of the snap device 100. Herein, the longitudinal direction of the snap device 100, the snap insert 110 and the snap receiver 160 is the direction along the longitudinal axis x. "radially outward" or "outwardly" is a direction relative to the longitudinal axis x, i.e., a direction substantially perpendicular to and away from the longitudinal axis x. "radially inwardly" or "inwardly" refers to a direction relative to the longitudinal axis x, i.e., a direction substantially perpendicular to and toward the longitudinal axis x.

As shown, the snap device 100 includes a snap insert 110 and a snap receiver 160. The snap insert 110 has a base 112 and two engagement arms 120 extending downward from the base 112 in the longitudinal direction of the snap insert. Each engagement arm 120 has an arm body 122 and an engagement arm protrusion 140 extending radially outward from the arm body 122 at or near the distal end of the arm body 122. As shown in fig. 4B and 4C, the engagement arm protrusion 140 has a protrusion top 146, and a first inclined surface 142 on a first side of the engagement arm protrusion 140, and a second inclined surface 152 on a second side of the engagement arm protrusion 140. The first side of the engagement arm protrusion 140 is the side proximate to the base 112 of the snap insert 110 and the second side is the side distal to the base 112 of the snap insert 110. According to some embodiments of the present invention, in the cross-sectional views shown in fig. 4B and 4C, the first inclined surface 142 and/or the second inclined surface 152 have a straight line shape. The first inclined surface 142 forms an inclination angle a1 with the longitudinal direction of the snap insert 110 (i.e. the direction of the longitudinal axis x) and the second inclined surface 152 forms an inclination angle a2 with the longitudinal direction of the snap insert 110 (i.e. the direction of the longitudinal axis x). In some embodiments according to the invention, the angle of the inclination angle a1 and/or the inclination angle a2 is 30-60 degrees. In further embodiments according to the present invention, the angle of the inclination angle a1 and/or the inclination angle a2 is about 45 degrees, such as 40-50 degrees.

Snap insert 110 further includes a first transition surface between first sloped surface 142 and outer surface 124 of arm body 122, a second transition surface between first sloped surface 142 and protrusion top 146, a third transition surface between protrusion top 146 and second sloped surface 152, and a fourth transition surface between second sloped surface 152 and distal end 156 of engagement arm protrusion 140. In some embodiments according to the invention, the first transition surface, the second transition surface, the third transition surface and the fourth transition surface are all smooth curved surfaces. According to further embodiments of the present invention, in the cross-sectional views shown in fig. 4B and 4C, the first transition surface, the second transition surface, the third transition surface, and the fourth transition surface are curved. In other embodiments according to the present invention, the radii of curvature R1, R2, R3, and R4 of the arcs of the first, second, third, and fourth transition surfaces are about 1mm, 0.8mm, and 0.8mm, respectively.

The snap receiver 160 has a receiver body 162, the receiver body 162 defining a receiving hole 164 for receiving the engagement arm 120 of the snap insert 110. The snap receiver 160 also includes a hole interface 170. The bore engaging portion 170 is in the form of an annular protrusion extending radially inward from an inner wall of the receiving bore 164. The hole interface 170 has a hole interface first surface 172 adjacent the orifice of the receiving hole 164, a hole interface third surface 176 facing away from the orifice of the receiving hole 164, and a hole interface second surface 174 extending between the hole interface first surface 172 and the hole interface third surface 176. According to other embodiments of the present invention, in the cross-sectional views shown in fig. 4B and 4C, the bore engaging portion first surface 172 is oblique to the longitudinal axis x, the bore engaging portion second surface 174 is substantially parallel to the longitudinal axis x, and the bore engaging portion third surface 176 is substantially perpendicular to the longitudinal axis x.

The snap receiver 160 further includes a fifth transition surface between the hole engaging portion first surface 172 and the hole engaging portion second surface 174, and a sixth transition surface between the hole engaging portion second surface 174 and the hole engaging portion third surface 176. In some embodiments according to the invention, the fifth transition surface and the sixth transition surface are smooth curved surfaces. According to further embodiments of the present invention, in the cross-sectional views shown in fig. 4B and 4C, the fifth transition surface and the sixth transition surface are curved. In still other embodiments according to the invention, the radii of curvature R5 and R6 of the arcs of the fifth and sixth transition surfaces are about 1mm and 0.3mm, respectively.

The operation of the buckle device 100 is described below.

During engagement of the snap device 100, the snap insert 110 is inserted into the receiving hole 164 of the snap receiver 160 under the action of external force. At this time, the second inclined surface 152 of the engagement arm protrusion 140 of the snap insert 110 or the third transition surface or the fourth transition surface adjacent to the second inclined surface 152 abuts against the hole engagement portion first surface 172 of the receiving hole 164 of the snap receiver 160 and generates an interaction force. Under the interaction force, the engagement arm portion 120 of the snap insert 110 is elastically deformed radially inward so that the engagement arm protrusion portion 140 of the snap insert 110 can pass over the snap receiver 160. After the engagement arm protrusion 140 of the snap insert 110 passes over the hole engagement portion second surface 174 of the receiving hole 164 of the snap receiver 160, the engagement arm 120 of the snap insert 110 springs back radially outward such that the first inclined surface 142 of the engagement arm protrusion 140 of the snap insert 110 abuts the hole engagement portion 170 of the snap receiver 160. After the snap insert 110 is inserted to the bottom, i.e., in the engaged position of the snap device 100, the base 112 of the snap insert 110 abuts the upper end of the snap receiver 160 while the first inclined surface 142 of the engagement arm protrusion 140 of the snap insert 110 abuts the hole engagement portion 170 of the snap receiver 160, thereby securing the snap insert 110 to the snap receiver 160.

During the disassembly of the snap device 100, the snap insert 110 is pulled out of the receiving hole 164 of the snap receiver 160 by an external force. At this time, since the first inclined surface 142 of the engagement arm protrusion 140 of the snap insert 110 is inclined with respect to the longitudinal axis x, as clearly shown in fig. 4B and 4C, the force of the hole engagement portion 170 of the snap insert 160 acting on the first inclined surface 142 of the engagement arm protrusion 140 causes the engagement arm 120 of the snap insert 110 to be elastically deformed in the radially inward direction, so that the engagement arm protrusion 140 of the snap insert 110 passes over the hole engagement portion 170 of the snap insert 160 to reach above the hole engagement portion 170 of the snap insert 160, and the snap insert 110 is disengaged from the snap insert 160.

That is, since the first inclined surface 142 of the engagement arm protrusion 140 of the snap insert 110 is inclined with respect to the longitudinal axis x, the snap insert 110 is not locked in the snap receiver 160. In contrast, due to the interaction of the first inclined surface 142 with the hole engaging portion 170 of the snap receiver 160, the engaging arm portion 120 of the snap insert 110 is elastically deformed in the radially inward direction under a certain pulling force, so that the snap insert 110 is pulled out from the snap receiver 160. Therefore, the fastening device 100 of the present invention can be conveniently disassembled. For example, in the utility model discloses a buckle device is used for in the embodiment of being connected between heat abstractor's cover and the heat abstractor casing, when operating personnel need carry out the deashing to heat abstractor or other maintenance operations, through exerting certain pulling force, can conveniently dismantle heat abstractor's cover from the heat abstractor casing to with heat abstractor's cover re-buckle connection to the heat abstractor casing after deashing or other maintenance operations. This easy-to-mount/dismount feature is very advantageous for the heat sink. Further, the smooth transition surfaces on the engagement arm protrusion 140 of the snap insert 110 of the snap device 100 and the smooth transition surfaces on the bore engagement portion 170 of the snap receiver 160 can make the assembly and disassembly of the snap device 100 easier and smoother.

The inventors of the present invention also investigated the relationship between the inclination angles of the first and second

inclined surfaces

142 and 152 of the engagement arm protrusion 140 of the snap insert 110 and the disassembly and assembly force required for disassembly and assembly of the snap device 100 through experiments and numerical simulation (performed by Ansys software), see the following table. As can be seen from the table contents, as the inclination angle a1 of the first inclined surface 142 of the engagement arm protrusion 140 increases from 30 ° by 60 °, the force required to mount the snap insert 110 of the snap device 100 to the snap receiver 160 of the snap device increases from about 25N by about 89N. As the angle of inclination a2 of the second inclined surface 152 of the engagement arm protrusion 140 increases from 30 ° to 60 °, the force required to detach the snap insert 110 of the snap device 100 from the snap receiver 160 of the snap device increases from about 30N to about 110N. Therefore, the latch according to the present invention can change the inclination angles of the first and second

inclined surfaces

142 and 152 of the engaging arm protrusion 140 as needed, thereby making the latch more suitable for the intended application scenario.

Angle of inclination a1	Force required for installation	Angle of inclination a2	Force required for disassembly
				30°	About 25N	30°	About 30N
45°	About 42N	45°	About 55N
				60°	About 89N	60°	About 110N

Fig. 5A is a view of a buckle device 100 according to the present invention, showing the maximum allowable tolerance of the buckle device. As shown in fig. 5A, the dashed lines in fig. 5A represent the maximum allowable tolerance of the respective portions of the engagement arms of the snap insert 110. Since the first inclined surface 142 of the engagement arm protrusion 140 of the snap insert 110 is inclined, the maximum allowable tolerance of the engagement arm protrusion of the snap insert 110 in the longitudinal direction is T1.

Fig. 5B is a view of the snap device of the comparative embodiment, showing the maximum allowable tolerance of the snap device of the comparative embodiment. As shown in fig. 5B, the snap device of the comparative embodiment includes a snap insert 210 and a snap receiver 260. The snap insert 110 has an engagement arm 220 with a radially outwardly extending engagement arm protrusion 240 near the distal end of the engagement arm 220. The comparative embodiment of fig. 5 differs from the embodiment of fig. 5A mainly in that the first surface 242 (corresponding to the first inclined surface 142 in fig. 5A) of the engagement arm protrusion 240 is substantially perpendicular to the longitudinal axis of the snap means. As shown in fig. 5B, the maximum allowable tolerance of the engaging arm protrusion of the snap insert 210 in the longitudinal direction is T2.

As can be seen in fig. 5A and 5B, the maximum allowable tolerance T1 of the engagement arm protrusion of the snap insert 110 is significantly greater than the maximum allowable tolerance T2 of the engagement arm protrusion of the snap insert 210. In some embodiments, the maximum allowable tolerance T1 of the engagement arm protrusion of the snap insert 110 is 0.8mm, while the maximum allowable tolerance T2 of the engagement arm protrusion of the snap insert 210 is only 0.2mm. Therefore, the buckle device according to the present invention also has the advantage of large tolerance.

In the embodiment shown, the snap insert 110 has two engagement arms 120. In other embodiments according to the present invention, the snap insert 110 may have any suitable number of engagement arm portions 120, such as three or four engagement arms. In some other embodiments according to the invention, the engagement arms of the snap insert are equally circumferentially spaced.

In the embodiment shown, the receiving hole of the snap receiver is a circular hole. In some other embodiments according to the invention, the receiving hole of the snap receiver may be a hole of other shape, such as an elliptical hole, a square hole, a rectangular hole, etc. The engagement arms of the snap insert now also have a corresponding shape. In some embodiments as shown, the bore engaging portion is an annular protrusion extending inwardly from an inner wall of the receiving bore. In other embodiments, the aperture engagement portion may be a plurality of separate protrusions extending inwardly from an inner wall of the receiving aperture.

In the embodiments shown in fig. 1A-1B and fig. 2, the fastening device is used for a heat dissipation device of a power amplifier. In other embodiments according to the present invention, a heat sink comprising the snap device may be used for any suitable electronic device. In a further embodiment according to the invention, the snap means may be used for any suitable electronic device, for example for connecting a cover of an electronic device to a housing of the electronic device.

The utility model discloses can realize following mode:

item 1: a snap fitting for an electronic device, comprising:

a snap insert having a base and a plurality of engagement arms extending from the base in a longitudinal direction of the snap insert, each engagement arm having an arm body and an engagement arm protrusion protruding outward from the arm body near a distal end of the arm body;

a snap receiver having a receiving hole and a hole engaging portion extending inwardly from an inner wall of the receiving hole,

wherein the snap device has an engaged position in which the snap insert is engaged with the snap receiver and a disengaged position in which the snap insert is disengaged from the snap receiver,

wherein the engagement arm protrusion includes a first side proximate to the base and a second side distal from the base, the engagement arm protrusion further including a first sloped surface on the first side and a second sloped surface on the second side,

wherein in the engaged position, the plurality of engagement arms of the snap insert are at least partially received within the receiving bore of the snap receiver, and the first inclined surface of the engagement arm projection of each engagement arm is engaged with the bore engagement of the snap receiver.

Item 2: the snap device for an electronic device of item 1, the snap insert having a longitudinal axis extending through a center of the snap insert and in a longitudinal direction of the snap insert, the first inclined surface having a linear shape in a cross section through the longitudinal axis.

Item 3: the buckle device for an electronic apparatus according to any one of items 1 to 2, wherein the second inclined surface has a linear shape in a cross section passing through the longitudinal axis.

Item 4: the snap device for an electronic apparatus according to any one of items 1 to 3, characterized in that in a cross section through the longitudinal axis, the angle of the first inclined surface with respect to the longitudinal axis is 30 to 60 degrees and/or the angle of the second inclined surface with respect to the longitudinal axis is 30 to 60 degrees.

Item 5: the buckle device for an electronic device according to any one of items 1 to 4, wherein an angle of the first inclined surface with respect to the longitudinal axis is 40 to 50 degrees and/or an angle of the second inclined surface with respect to the longitudinal axis is 40 to 50 degrees in a cross section through the longitudinal axis.

Item 6: the buckle device for an electronic apparatus according to any one of items 1 to 5, wherein the engaging arm protrusion further includes a protrusion top portion between the first inclined surface and the second inclined surface, the engaging arm protrusion further includes a first transition surface between the first inclined surface and an outer surface of the arm body, a second transition surface between the first inclined surface and the protrusion top portion, and a third transition surface between the protrusion top portion and the second inclined surface, and the first transition surface, the second transition surface, and/or the third transition surface is a smoothly curved surface.

Item 7: the snap device for an electronic apparatus according to any of items 1 to 6, wherein in the engaged position, the plurality of engagement arms are elastically deformed inward, and the base portion of the snap insert abuts the snap receiver.

Item 8: the buckle device for an electronic apparatus according to any one of items 1 to 7, wherein the receiving hole of the buckle receiver is a circular hole, the hole engaging portion is an annular protrusion extending inward from an inner wall of the receiving hole, and the plurality of engaging arms of the buckle insert are two engaging arms, three engaging arms, or four engaging arms equally spaced in a circumferential direction around the longitudinal axis.

Item 9: a heat sink for an electronic device, the heat sink comprising a heat sink housing and a heat sink cover, the heat sink further comprising a plurality of snap devices for an electronic device as recited in any of items 1-8, the heat sink cover being removably attached to the heat sink housing by the snap devices.

Item 10: the heat sink of claim 9, wherein the snap insert of the snap device is a plastic piece integrally formed with the heat sink cover and the snap receiver of the snap device is integrally formed with the heat sink housing.

Item 11: an electronic device assembly comprising an electronic device and a heat sink according to any of items 9-10, the heat sink being coupled to the electronic device for dissipating heat from the electronic device.

Item 12: the electronic device assembly of item 11, wherein the electronic device is a power amplifier.

The above description is only for the purpose of illustrating exemplary embodiments of the principles of the present invention, and is not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also within the scope of the invention.

Claims

1. A buckle device for an electronic device, comprising:

wherein in the engaged position, the plurality of engagement arms of the snap insert are at least partially received within the receiving aperture of the snap receiver and the first inclined surface of the engagement arm projection of each engagement arm is engaged with the aperture engagement portion of the snap receiver.

2. The clip device according to claim 1, wherein said clip insert has a longitudinal axis passing through a center of said clip insert and extending in a longitudinal direction of said clip insert, and said first inclined surface has a linear shape in a cross section passing through said longitudinal axis.

3. The buckle device for an electronic device according to claim 2, wherein the second inclined surface has a linear shape in a cross section passing through the longitudinal axis.

4. The buckle device for an electronic device according to claim 3, wherein an angle of the first inclined surface with respect to the longitudinal axis is 30-60 degrees and/or an angle of the second inclined surface with respect to the longitudinal axis is 30-60 degrees in a cross section through the longitudinal axis.

5. The buckle device for an electronic device according to claim 3, wherein an angle of the first inclined surface with respect to the longitudinal axis is 40-50 degrees and/or an angle of the second inclined surface with respect to the longitudinal axis is 40-50 degrees in a cross section through the longitudinal axis.

6. The buckle device for an electronic apparatus according to any one of claims 1 to 5, wherein the engaging arm protrusion further comprises a protrusion top portion between the first inclined surface and the second inclined surface, the engaging arm protrusion further comprises a first transition surface between the first inclined surface and an outer surface of the arm body, a second transition surface between the first inclined surface and the protrusion top portion, a third transition surface between the protrusion top portion and the second inclined surface, and the first transition surface, the second transition surface, and/or the third transition surface is a smoothly curved surface.

7. The snap device for an electronic apparatus according to any one of claims 1 to 5, wherein in the engaged position, the plurality of engagement arms are elastically deformed inward, and the base portion of the snap insert abuts the snap receiver.

8. The buckle device for an electronic apparatus according to any one of claims 2 to 5, wherein the receiving hole of the buckle receiver is a circular hole, the hole engaging portion is an annular protrusion extending inward from an inner wall of the receiving hole, and the plurality of engaging arms of the buckle insert are two engaging arms, three engaging arms, or four engaging arms equally spaced in a circumferential direction around the longitudinal axis.

9. A heat sink for an electronic device, wherein the heat sink comprises a heat sink housing and a heat sink cover, the heat sink further comprising a plurality of the snap devices for an electronic device of any of claims 1-8, the heat sink cover being removably attached to the heat sink housing by the snap devices.

10. The heat sink of claim 9, wherein said snap insert of said snap device is a plastic piece integrally formed with said heat sink cover, and said snap receiver of said snap device is integrally formed with said heat sink housing.

11. An electronic device assembly comprising an electronic device and a heat dissipation device as claimed in any of claims 9-10, the heat dissipation device being connected to the electronic device for dissipating heat from the electronic device.

12. The electronic device assembly of claim 11, wherein the electronic device is a power amplifier.