Electronic device with magnetic attraction positioning function

Abstract

The invention discloses an electronic device with a magnetic attraction positioning function. The electronic device comprises a circuit board and a radiator, the circuit board comprises at least one magnetic positioning column. The radiator comprises a radiating body and at least one magnetic attraction piece. The heat dissipation body comprises a first end part, the at least one magnetic attraction piece is arranged at the first end part, the at least one magnetic attraction piece comprises at least one notch, and when the magnetic attraction piece is close to the magnetic attraction positioning column, the magnetic attraction piece and the magnetic attraction positioning column are attracted by magnetic force, so that the magnetic attraction positioning column is automatically aligned and extends into the notch.

Description

Technical Field

[0001] The present invention relates to an electronic device, and more particularly to an electronic device with magnetic positioning that can be quickly aligned. Background Art

[0002] At present, most of the heat sinks provided on the main board are fixed by screwing. Such a fixing method requires manual alignment, which is quite inconvenient in assembly. Summary of the Invention

[0003] An object of the present invention is to provide an electronic device with magnetic positioning, which can be quickly aligned.

[0004] An electronic device with magnetic positioning according to the present invention includes a circuit board and a heat sink. The circuit board includes at least one magnetic positioning post. The heat sink includes a heat dissipation body and at least one magnetic member. The heat dissipation body includes a first end portion, and at least one magnetic member is disposed on the first end portion. The at least one magnetic member includes at least one notch. When the at least one magnetic member approaches the at least one magnetic positioning post, the at least one magnetic member and the at least one magnetic positioning post are attracted by magnetic force, so that the at least one magnetic positioning post is automatically aligned and extends into the at least one notch.

[0005] In an embodiment of the present invention, the above magnetic member and the magnetic positioning post are a combination of a magnet and a metal member, or the magnetic member and the magnetic positioning post are a combination of two magnets.

[0006] In an embodiment of the present invention, each of the above magnetic positioning posts includes a base, a neck, and an expanded portion connected in sequence. The base contacts the circuit board, and the expanded portion is tapered in a direction away from the circuit board.

[0007] In an embodiment of the present invention, each of the above magnetic members includes an inclined top surface facing away from the circuit board, and the inclined top surface faces a conical surface of the expanded portion.

[0008] In an embodiment of the present invention, each of the above magnetic members includes a notch bottom surface, and the angle between the inclined top surface and the notch bottom surface is between 98 degrees and 120 degrees.

[0009] In an embodiment of the present invention, the above notch is recessed from one side surface of the magnetic member. Each magnetic member includes a notch bottom surface away from the side surface, and the thickness of the notch bottom surface is greater than the length of the neck.

[0010] In an embodiment of the present invention, when the heat sink is fixed to the circuit board, each magnetic member is located on the corresponding base, and each magnetic member abuts against a conical surface of the corresponding expanded portion.

[0011] In an embodiment of the present invention, at least one of the magnetic attraction positioning posts is a plurality of magnetic attraction positioning posts, at least one of the magnetic attraction members is a plurality of magnetic attraction members, at least one of the notches includes a plurality of notches, and each magnetic attraction member includes one of these notches.

[0012] In an embodiment of the present invention, at least one of the magnetic attraction positioning posts is a plurality of magnetic attraction positioning posts, at least one of the magnetic attraction members is a magnetic attraction member, at least one of the notches includes a plurality of notches, and the magnetic attraction member includes these notches.

[0013] In an embodiment of the present invention, the electronic device with magnetic attraction positioning further includes a buckle member movably disposed on the circuit board, wherein the heat dissipation body includes a second end portion opposite to the first end portion, and the buckle member is engaged with the second end portion.

[0014] Based on the above, when the magnetic attraction member of the radiator of the electronic device with magnetic attraction positioning of the present invention approaches the magnetic attraction positioning post of the circuit board, the magnetic attraction member of the radiator is attracted by the magnetic force of the magnetic attraction positioning post of the circuit board, and will automatically approach the magnetic attraction positioning post of the circuit board, so that the magnetic attraction positioning post of the circuit board is automatically aligned and extends into the notch of the magnetic attraction member of the radiator, so as to quickly align the radiator to the circuit board. Therefore, the assembly of the radiator of the electronic device with magnetic attraction positioning of the present invention is quite convenient. Description of the Drawings

[0015] Figure 1 is a schematic diagram of a radiator of an electronic device with magnetic attraction positioning according to an embodiment of the present invention before being assembled to a circuit board.

[0016] Figure 2 is Figure 1 a schematic diagram of the first end portion of the radiator.

[0017] Figure 3A is Figure 2 a schematic diagram of the reverse side.

[0018] Figure 3B is Figure 3A an exploded schematic diagram.

[0019] Figure 4 is a schematic diagram of the reverse side of the first end portion of a radiator of an electronic device with magnetic attraction positioning according to another embodiment of the present invention.

[0020] Figure 5 is Figure 1 a schematic diagram of the magnetic attraction positioning post of the circuit board extending into the notch of the radiator.

[0021] Figure 6 is Figure 1 a schematic diagram of the radiator of the electronic device with magnetic attraction positioning assembled to the circuit board.

[0022] Figure 7 It is a schematic cross-sectional view of the radiator in the lifted state.

[0023] Figure 8 It is Figure 6 a schematic cross-sectional view of

[0024] Figures 9 to 10 It is Figure 1 a partial enlarged schematic view of the buckle of the electronic device with magnetic attraction positioning being engaged with the second end of the radiator.

[0025] The reference numerals are as follows:

[0026] θ: included angle

[0027] T: thickness

[0028] L: length

[0029] 100: electronic device with magnetic attraction positioning

[0030] 110: circuit board

[0031] 120: magnetic attraction positioning post

[0032] 122: base

[0033] 124: neck

[0034] 126: expanded part

[0035] 128: conical surface

[0036] 130: radiator

[0037] 132: heat dissipation body

[0038] 134: first end

[0039] 136: second end

[0040] 140: magnetic attraction part

[0041] 142: side surface

[0042] 144: notch

[0043] 146: inclined top surface

[0044] 148: notch bottom surface

[0045] 150: buckle Detailed implementation manners

[0046] Figure 1 It is a schematic view of a radiator of an electronic device with magnetic attraction positioning according to an embodiment of the present invention before being assembled to a circuit board. Please refer to Figure 1, the electronic device 100 with magnetic attraction positioning in this embodiment includes a circuit board 110 and a heat sink 130. The circuit board 110 is, for example, a main board or an expansion card, and the type of the circuit board 110 is not limited thereto. The circuit board 110 includes at least one magnetic attraction positioning post 120 for positioning the heat sink 130. The heat sink 130 can dissipate heat for an expansion card (not shown) disposed on the circuit board 110.

[0047] Figure 2 Is Figure 1 A schematic diagram of the first end of the heat sink. Figure 3A Is Figure 2 A schematic diagram of the reverse side. Figure 3B Is Figure 3A An exploded schematic diagram. Please refer to Figure 2 , Figure 3A , Figure 3B , in this embodiment, the heat sink 130 includes a heat dissipation body 132 and at least one magnetic attraction member 140 ( Figure 3B ). The heat dissipation body 132 includes a first end 134, and at least one magnetic attraction member 140 is disposed on the first end 134. At least one magnetic attraction member 140 includes at least one notch 144.

[0048] In this embodiment, the number of the magnetic attraction positioning posts 120, the magnetic attraction members 140, and the notches 144 is multiple. Each magnetic attraction member 140 includes one of these notches 144. The notch 144 is recessed from one side surface 142 of this magnetic attraction member 140. That is to say, in this embodiment, the number of the magnetic attraction members 140 corresponds to the number of the notches 144.

[0049] Specifically, as Figure 3B shown, the number of the magnetic attraction positioning posts 120, the magnetic attraction members 140, and the notches 144 is taken as two by way of example, but is not limited thereto.

[0050] Figure 4 Is a schematic diagram of the reverse side of the first end of a heat sink of an electronic device with magnetic attraction positioning according to another embodiment of the present invention. Please refer to Figure 4 , in this embodiment, the number of the magnetic attraction members 140 is less than the number of the notches 144. Specifically, the number of the magnetic attraction members 140 is one, and the number of the notches 144 is two. These two notches 144 are formed on this magnetic attraction member 140. Of course, the quantity relationship among the magnetic attraction positioning posts 120, the magnetic attraction members 140, and the notches 144 is not limited by the drawings.

[0051] Figure 5 Is Figure 1 A schematic diagram of the magnetic attraction positioning post of the circuit board extending into the notch of the heat sink. Please refer to Figure 5, in this embodiment, the magnetic member 140 and the magnetic positioning post 120 are a combination of a magnet and a metal member, or the magnetic member 140 and the magnetic positioning post 120 are a combination of two magnets with opposite magnetic polarities. Therefore, the magnetic member 140 and the magnetic positioning post 120 will be attracted to each other by the magnetic force and approach each other.

[0052] When the magnetic member 140 approaches the magnetic positioning post 120, the magnetic member 140 and the magnetic positioning post 120 are attracted by the magnetic force, causing the magnetic positioning post 120 to automatically align and extend into the notch 144. Therefore, the radiator 130 of this embodiment can easily complete the alignment.

[0053] Figure 6 is Figure 1 a schematic diagram of assembling the radiator of the electronic device with magnetic positioning to the circuit board. Please refer to Figure 6 , in this embodiment, the heat dissipation body 132 includes a second end portion 136 relative to the first end portion 134. After the first end portion 134 of the heat dissipation body 132 completes the alignment with the magnetic positioning post 120, the user only needs to press down and fix the second end portion 136 to complete the assembly.

[0054] Figure 7 is a cross-sectional schematic diagram of the state where the radiator is lifted. Figure 8 is Figure 6 a cross-sectional schematic diagram of. Please refer to Figure 7 and Figure 8 , in this embodiment, the magnetic positioning post 120 includes a base 122, a neck 124, and a flared portion 126 connected in sequence. The base 122 contacts the circuit board 110, and the flared portion 126 is tapered in a direction away from the circuit board 110.

[0055] As Figure 8 shown, the magnetic member 140 includes a notch bottom surface 148 (perpendicular in Figure 8 ) away from the side surface 142. The thickness T of the notch bottom surface 148 is greater than the length L of the neck 124. Therefore, when the radiator 130 is fixed to the circuit board 110, the magnetic member 140 is located on the corresponding base 122, and the magnetic member 140 abuts against a conical surface 128 of the flared portion 126 of the magnetic positioning post 120. Such a design can fix the magnetic member 140 in the up and down direction to prevent loosening.

[0056] In addition, the magnetic member 140 includes an inclined top surface 146 facing away from the circuit board 110, and the inclined top surface 146 is connected to the notch bottom surface 148. The junction of the inclined top surface 146 and the notch bottom surface 148 abuts against the conical surface 128 of the flared portion 126 of the magnetic positioning post 120. As Figure 8 shown, the inclined top surface 146 faces the conical surface 128 of the flared portion 126.

[0057] When the heat sink 130 is to be removed from the circuit board 110, the design of the inclined top surface 146 of the magnetic member 140 can make the angle θ between the bottom surface 148 of the notch and the inclined top surface 146 an obtuse angle. Such a design enables the heat sink 130 to move away from the magnetic positioning post 120 (such as Figure 7 in the right rear) slightly during the lifting process, so as to prevent the magnetic member 140 from interfering with the base 122 during the flipping process, and thus make it easier for the heat sink 130 to flip and be lifted smoothly.

[0058] In addition, the design that the thickness T of the bottom surface 148 of the notch is greater than the length L of the neck 124 enables the magnetic member 140 to be more easily guided and retracted along the conical surface 128 of the expanding portion 126 when the heat sink 130 is to be lifted, which helps to lift it smoothly.

[0059] In this embodiment, the angle θ between the bottom surface 148 of the notch and the inclined top surface 146 is between 98 degrees and 120 degrees, for example, 100 degrees, so that the heat sink 130 can be lifted smoothly, and a sufficient flipping angle can be provided, reducing the probability of the magnetic member 140 being interfered by the conical surface 128 of the expanding portion 126.

[0060] Figures 9 to 10 Yes Figure 1 Partial enlarged schematic view of the buckle of the electronic device with magnetic positioning being engaged with the second end of the heat sink. Please refer to Figures 9 to 10 , in this embodiment, the electronic device 100 with magnetic positioning further includes a buckle 150, which is movably arranged on the circuit board 110. The buckle 150 is engaged with the second end 136 of the heat dissipation body 132. In this embodiment, the buckle 150 can fix the second end 136 to the circuit board 110 by rotation.

[0061] In one embodiment, there may be components such as a torsion spring (not shown) inside the buckle 150, so that the buckle 150 is normally maintained in the engaged position ( Figure 10 ). When the second end 136 of the heat dissipation body 132 is to be fixed, first manually rotate the buckle 150 to Figure 9 position, and then release the buckle 150. The buckle 150 can automatically return to Figure 10 position to fix the second end 136 of the heat dissipation body 132.

[0062] The heat sink 130 of this embodiment can be easily aligned with the magnetic positioning post 120 of the circuit board 110 through the magnetic member 140. And as long as the second end 136 of the heat sink 130 is pressed down, it can be fixed by the buckle 150, without the need for screw fixation, and the assembly is quite convenient and fast.

[0063] In summary, when the magnetic component of the radiator of the electronic device with magnetic attraction positioning according to the present invention approaches the magnetic attraction positioning post of the circuit board, the magnetic component of the radiator is attracted by the magnetic force of the magnetic attraction positioning post of the circuit board and will automatically approach the magnetic attraction positioning post of the circuit board. Furthermore, the magnetic attraction positioning post of the circuit board will automatically align and extend into the notch of the magnetic component of the radiator, so that the radiator can be quickly aligned to the circuit board. Therefore, the radiator of the electronic device with magnetic attraction positioning according to the present invention is quite convenient in assembly.

Claims

1. An electronic device with magnetic attraction positioning, characterized in that, it includes: a circuit board including at least one magnetic attraction positioning post; and a radiator including a heat dissipation body and at least one magnetic attraction member, wherein the heat dissipation body includes a first end portion, the at least one magnetic attraction member is disposed on the first end portion, the at least one magnetic attraction member includes at least one notch, when the at least one magnetic attraction member approaches the at least one magnetic attraction positioning post, the at least one magnetic attraction member and the at least one magnetic attraction positioning post are attracted by magnetic force, so that the at least one magnetic attraction positioning post automatically aligns and extends into the at least one notch.

2. The electronic device with magnetic attraction positioning according to claim 1, characterized in that, the magnetic attraction member and the magnetic attraction positioning post are a combination of a magnet and a metal member, or the magnetic attraction member and the magnetic attraction positioning post are a combination of two magnets.

3. The electronic device with magnetic attraction positioning according to claim 1, characterized in that, each of the magnetic attraction positioning posts includes a base, a neck and an expanding portion connected in sequence, the base contacts the circuit board, and the expanding portion is in a gradually expanding shape along the direction away from the circuit board.

4. The electronic device with magnetic attraction positioning according to claim 3, characterized in that, the notch is recessed from one side surface of the magnetic attraction member, each of the magnetic attraction members includes a notch bottom surface away from the side surface, and the thickness of the notch bottom surface is greater than the length of the neck.

5. The electronic device with magnetic attraction positioning according to claim 3, characterized in that, when the radiator is fixed to the circuit board, each of the magnetic attraction members is located on the corresponding base, and each of the magnetic attraction members abuts against a conical surface of the corresponding expanding portion.

6. The electronic device with magnetic attraction positioning according to claim 3, characterized in that, each of the magnetic attraction members includes an inclined top surface facing away from the circuit board, and the inclined top surface faces a conical surface of the expanding portion.

7. The electronic device with magnetic attraction positioning according to claim 6, characterized in that, each of the magnetic attraction members includes a notch bottom surface, and the included angle between the inclined top surface and the notch bottom surface is between 98 degrees and 120 degrees.

8. The electronic device with magnetic attraction positioning according to claim 1, characterized in that, the at least one magnetic attraction positioning post is a plurality of magnetic attraction positioning posts, the at least one magnetic attraction member is a plurality of magnetic attraction members, the at least one notch includes a plurality of notches, and each of the magnetic attraction members includes one of the plurality of notches.

9. The electronic device with magnetic attraction positioning according to claim 1, characterized in that, the at least one magnetic attraction positioning post is a plurality of magnetic attraction positioning posts, the at least one magnetic attraction member is a magnetic attraction member, the at least one notch includes a plurality of notches, and the magnetic attraction member includes the plurality of notches.

10. The electronic device with magnetic attraction positioning according to claim 1, characterized in that, it further includes a buckle member movably disposed on the circuit board, wherein the heat dissipation body includes a second end portion opposite to the first end portion, and the buckle member is engaged with the second end portion.

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