CN217336227U - Fastener, heat dissipation module and electronic equipment - Google Patents
Fastener, heat dissipation module and electronic equipment Download PDFInfo
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- CN217336227U CN217336227U CN202123348781.8U CN202123348781U CN217336227U CN 217336227 U CN217336227 U CN 217336227U CN 202123348781 U CN202123348781 U CN 202123348781U CN 217336227 U CN217336227 U CN 217336227U
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- generating module
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- 239000004417 polycarbonate Substances 0.000 claims description 8
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 7
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- 229920000515 polycarbonate Polymers 0.000 claims description 7
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 6
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- 229920001483 poly(ethyl methacrylate) polymer Polymers 0.000 claims description 3
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- 230000009286 beneficial effect Effects 0.000 description 2
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- 230000020169 heat generation Effects 0.000 description 2
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The embodiment of the present disclosure provides a fastener, a heat dissipation module and an electronic device, wherein, the fastener includes: a rod body and an insulation limiting part; the rod body comprises a first part and a second part connected with the first part; the insulation limiting part is sleeved on the second part.
Description
Technical Field
The present disclosure relates to the field of electronic devices, and in particular, to a fastener, a heat dissipation module, and an electronic device.
Background
In current electronic devices, a heat sink is mounted on a device that generally generates heat severely, and the heat sink is generally fixed on a surface of a Printed Circuit Board (PCB) or the like by screws. In the related art, the PCB is often contacted by forming a positioning step on a stud of a screw, so that the PCB device is prevented from being crushed by a radiator.
SUMMERY OF THE UTILITY MODEL
The embodiment of the disclosure provides a fastener, a heat dissipation module and an electronic device.
A first aspect of embodiments of the present disclosure provides a fastener, including: a rod body and an insulation limiting part;
the rod body comprises a first part and a second part connected with the first part;
the insulation limiting piece is sleeved on the second part.
Based on the scheme, the second part comprises a first section and a second section, the first section is close to the first part, and the second section is far away from the first part;
the insulation limiting part is sleeved on the first section; and the second section is provided with threads.
Based on the scheme, knurling is pressed on the outer surface of the first section.
Based on the above scheme, the material of insulating locating part includes:
insulating plastic;
and/or the presence of a gas in the gas,
and (4) insulating cloth.
Based on the scheme, the insulating plastic at least comprises one of the following components: nylon PA, polycarbonate PC, poly-acrylonitrile-butadiene-styrene ABS, poly ethyl methacrylate PMMA, polypropylene plastic PP.
Based on the above scheme, the insulating cloth includes: nylon cloth.
Based on the above scheme, the fastener still includes: an elastic member; the elastic component is sleeved on the first part.
Based on the scheme, the first diameter of the first part is larger than the second diameter of the second part.
Based on the above scheme, the insulating locating part is sleeved on the second part through interference fit, gluing or threaded fit.
Based on the scheme, the fastener is used for connecting the heat dissipation plate and the heat generating module; the first part is used for being assembled in a heat dissipation plate, and the second part is used for being fixedly connected with the heat generating module.
Based on the above scheme, the upper surface of insulating locating part with first part butt joint, the lower surface of insulating locating part is used for with generate heat module butt joint.
A second aspect of the embodiments of the present disclosure provides a heat dissipation module, including: a heat sink and one or more of the fasteners described above;
the fastener is used for connecting the heat dissipation plate and the heat generating module.
Based on the scheme, the heat dissipation plate is provided with a mounting position;
a first portion of the fastener fits in the mounting location and a second portion of the fastener is for fixed connection with the heat generating module group; the insulating locating part of fastener, be used for with heat production module contact.
Based on the above scheme, the fastener still includes: an elastic member;
the elastic member is fitted in the mounting position together with the first part.
A third aspect of the embodiments of the present disclosure provides an electronic device, including: a heat generating module and one or more heat dissipating modules of the foregoing technical solutions;
and the fastener in the heat dissipation module is used for connecting the heat generating module and the heat dissipation plate in the heat dissipation module.
Based on the scheme, the heat generating module is provided with a mounting hole;
the second part of the fastener is fixedly connected with the heat generating module through the mounting hole.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
in the technical scheme provided in the embodiment of the present disclosure, the fastener includes: a rod body and an insulation limiting part; the rod body comprises a first part and a second part connected with the first part; the insulation limiting part is sleeved on the second part. So, through establishing insulating locating part at the second part cover, can treat radiating heat production modules such as radiating PCB at the fastener connection, through insulating locating part and heat production module contact location, restrain the radiating heat production module of treating of metal step face direct contact between first portion and the second part of fastener, also need not to set up the pad on heat production module, can not cause the usable area on the heat production module to be wasted.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic illustration of a fastener shown in accordance with an exemplary embodiment;
FIG. 2 is a schematic structural view of a fastener shown in accordance with an exemplary embodiment;
FIG. 3 is a schematic structural view of a fastener shown in accordance with an exemplary embodiment;
FIG. 4 is a schematic diagram illustrating a heat dissipation module according to an exemplary embodiment;
FIG. 5 is a schematic diagram of an electronic device shown in accordance with an exemplary embodiment;
FIG. 6 is a schematic diagram of a spring screw shown in accordance with an exemplary embodiment.
Description of the reference numerals
1. A fastener; 2. a heat dissipation plate; 3. a heat generating module;
11. a rod body; 12. an insulating limit member; 13. an elastic member; 111. a first portion; 112. a second portion;
1121. a first stage; 1122. and a second section.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of devices consistent with certain aspects of the present disclosure, as detailed in the appended claims.
As shown in fig. 1, the disclosed embodiment provides a fastener 1, including: a rod body 11 and an insulation limiting piece 12;
the shaft 11 comprises a first portion 111 and a second portion 112 connected to the first portion 111;
the insulation limiting member 12 is sleeved on the second portion 112.
In the disclosed embodiment, the fastener 1 may be a device for fixing one or more objects by connection, for example, may be a screw, a bolt, a rivet, or the like.
The two ends of the rod body 11 of the fastener 1 can be respectively used for being connected with an object to realize the relative fixation of the two objects. For example, the fastener can be connected with a heat dissipation plate and a heat generating module respectively, for example, the heat generating module can be a PCB or a chip, etc., thereby realizing the fixed connection of the heat dissipation module and the heat generating module.
In one embodiment, the outer diameters of the first portion 111 and the second portion 112 of the rod 11 may be the same or different, for example, the outer diameter of the first portion 111 may be larger than the outer diameter of the second portion 112, and accordingly, the upper surface of the insulation limiting member 12 sleeved on the second portion 112 may be in snap-fit connection with a step surface formed between the first portion 111 and the second portion 112, so that when the lower surface of the insulation limiting member 12 is abutted against the heat generating module, the function of positioning and limiting may be achieved.
In another embodiment, the first portion 111 may be used to fit into a heat sink, and the portion of the second portion 112 not covered by the insulation retainer 12 may be used to fit into a heat generating module. The diameters of the first portion 111 and the second portion 112 may also be the same, and at this time, the insulating position-limiting member 12 may be clamped between the heat dissipation module and the heat generating module to achieve the function of positioning and limiting.
In one embodiment, the insulation limiting member 12 has an insulation property, and the material made includes an insulation material or at least the surface is covered with an insulation material, such as a plastic material and/or a cloth material.
In another embodiment, the material of the insulation limiting member 12 is a material with a stiffness coefficient greater than a preset value, or a material with an elasticity coefficient lower than a preset value, so as to better achieve the limiting function between the heat dissipation plate and the heat generating module, and reduce the deformation of the insulation limiting member 12 under the pressure of the heat dissipation plate.
In another embodiment, the material of the insulation limiting member 12 is a material with a thermal conductivity lower than a predetermined value, so as to reduce the thermal conductivity of the insulation limiting member 12 and prolong the life of the insulation limiting member 12.
In another embodiment, the insulation limiting member 12 may be a sleeve-shaped device, and the width of the inner diameter of the insulation limiting member 12 may be determined according to the outer diameter of the second portion 112. For example, the inner diameter of the insulation limiting member 12 may be larger than the outer diameter of the second portion 112, and the difference is smaller than a predetermined value, so as to ensure that the insulation limiting member 12 can be sleeved on the second portion 2 without falling off.
In another embodiment, the insulation stopper 12 may be in a cylindrical shape having the same area on the upper surface and the lower surface, or in a truncated cone shape having the different area on the upper surface and the lower surface. For example, when the lower surface is used to contact the heat generating module, the area of the lower surface may be larger than the area of the upper surface, thereby further reducing the stress on the heat generating module.
In another embodiment, the inner diameter width of the insulation limiting member 12 may be equal to or smaller than the diameter of the second portion 112, and the material of the insulation limiting member 12 is required to be an elastic material, such as nylon cloth, so that the insulation limiting member 12 can be sleeved on the second portion 112 in an interference fit manner and is not easy to fall off.
In the related art, the lever body 11 is generally formed in a step shape, and is positioned on the PCB by a step surface formed on the lever body 11. Because of the strength problem of the PCB, the size of the step cannot be too small, and the too small step surface will crush the surface of the PCB, so the outer diameter of the rod 11 is generally larger, usually larger than 6 mm. Moreover, since the step surface of the rod 11 is made of metal, it is easy to remove the green oil from the contact portion with the PCB by friction, and therefore, it is necessary to form a land having a diameter larger than the outer diameter of the rod 11 on the PCB. The layout of the PCB of the electronic product is increasingly compact, and the position of the bonding pad leads to a large amount of area waste.
So, locate the second part of the body of rod through insulating locating part cover to when heat production modules such as through 1 fixed connection PCB of fastener, can realize fixing a position limit function through the insulating locating part of non-metallic material replaces the step face of the body of rod. Therefore, the safety of the self electrical function of the PCB can be ensured, the damage of the metal step surface to the surfaces of the PCB and the like can be inhibited, no additional bonding pad is needed, and the utilization rate of the available area on the PCB can be greatly improved.
In some embodiments, the second portion 112 includes a first section 1121 and a second section 1122, the first section 1121 being proximate to the first portion 111, and the second section 1122 being distal to the first portion 111;
the insulation limiting member 12 is sleeved on the first segment 1121; the second section 1122 is provided with threads.
In the embodiment of the disclosure, as shown in fig. 2, a portion of the second portion 112 for sleeving the insulation limiting member 12 is a first section 1121, and a portion for assembling in the heat generating module is a second section 1122. The distance between the first segment 1121 and the first portion 111 is smaller than the distance between the second segment 1122 and the first portion 111. For example, the distance between the end of the first segment 1121 remote from the first portion 111 and the center of the first portion 111 is smaller than the distance between the end of the second segment 1122 near the first portion 111 and the center of the first portion 111.
In one embodiment, the length of the first segment 1121 can be greater than or equal to the length of the insulation limit piece 12. Here, the length of a certain portion of the rod body 11 is a length in a radial direction of the rod body 11, and the length of the insulation limiting member 12 is a length in an axial direction of the insulation limiting member 12.
In another embodiment, the length of the second segment 1122 may be greater than the length of the first segment 1121 in order to enhance the connection stability of the fastening member 1, and/or the length of the first segment 1121 or the length of the insulation limiting member 12 may be greater than a predetermined threshold value in order to enhance the limiting function of the insulation limiting member 12.
In one embodiment, the threads provided on the second section 1122 can be male threads on the second section 1122, and accordingly, the outer diameter of the second section 1122 having male threads can be slightly larger than the outer diameter of the first section 1121; alternatively, the second section 1122 may be grooved threads, and accordingly, the outer diameter of the second section 1122 having grooved threads may be equal to the outer diameter of the first section 1121.
Thus, the insulation limiting member 12 is disposed on a section of the second portion 112 close to the first portion 111, so that when the fastener 1 fastens the heat dissipation plate and the heat generating module, the insulation limiting member 12 can be located in the middle of the fastener 1, that is, between the heat dissipation plate and the heat generating module, thereby achieving the positioning and limiting function.
In some embodiments, the outer surface of the first section 1121 is knurled.
Here, by pressing knurling on the outer surface of the first segment 1121, the friction between the outer surface of the first segment 1121 and the inner surface of the insulation limiting member 12 is increased, thereby further reducing the risk of the insulation limiting member 12 falling off.
In an embodiment, knurling or protrusions or the like matched with the knurling on the outer surface of the first segment 1121 may be further provided on the inner surface of the insulation limiting member 12 for contacting with the first segment 1121, so as to further reduce the risk of the insulation limiting member 12 falling off.
In some embodiments, the insulating stoppers 12 are made of:
insulating plastic;
and/or the presence of a gas in the gas,
and (4) insulating cloth.
In the embodiment of the present disclosure, the insulating plastic may include various insulating plastic materials, such as: nylon (Polyamide, PA), Polycarbonate (PC), poly-Acrylonitrile Butadiene Styrene (ABS), polymethyl methacrylate (PMMA), Polypropylene Plastic (PP).
In one embodiment, the insulating cloth may be at least one of nylon cloth, oxford cloth, or other similar insulating cloth.
So, based on insulating locating part 12's material selection, can fully reduce the damage to heat production modules such as PCB to when fixing a position spacingly based on insulating locating part 12, still can lay the copper sheet and walk the line on the PCB, need not to set up corresponding pad on PCB, and then can save the usable floor area that the pad occupied.
In some embodiments, the insulating plastic comprises at least one of: nylon PA, polycarbonate PC, poly-acrylonitrile-butadiene-styrene ABS, poly ethyl methacrylate PMMA, polypropylene plastic PP.
In some embodiments, the fastener 1 further comprises: an elastic member 13; the elastic member 13 is sleeved on the first portion 111.
In the embodiment of the present disclosure, as shown in fig. 3, the elastic member 13 may be a spring, a leaf spring, a bellows, or other elements having an elastic function. The elastic component 13 is sleeved on the first portion 111 and used for being assembled in the heat dissipation plate together with the first portion 111 and used for forming a spring screw together with the rod body 11 and the insulation limiting piece 12, contact force of the heat dissipation plate on a heat generation module is controlled through the expansion amount of the elastic component 13, and damage to the heat generation module is reduced.
In one embodiment, the natural length of the elastic member 13 without external force may be less than or equal to the length of the first portion 111, thereby facilitating the assembly with the first portion 111 in the heat dissipation plate.
In another embodiment, if the weight of the heat dissipation plate is larger or the pressure resistance of the heat generating module such as PCB is lower, the natural length of the elastic member 13 without external force may be larger than the length of the first portion 111, so that the contact force of the heat dissipation plate to the heat generating module can be better reduced after the heat dissipation plate is assembled in the heat dissipation plate.
In some embodiments, the first diameter of the first portion 111 is greater than the second diameter of the second portion 112.
Here, the first diameter may be an outer diameter of the first portion 111, and the second diameter may be an outer diameter of the second portion 112. If the second portion 112 is further provided with a thread, the second diameter may be the outer diameter of the second portion 112, or may be the outer diameter of the second portion rod body except for the thread.
In one embodiment, the first diameter may be larger than the inner diameter of the insulation limiting member 12, so as to inhibit the insulation limiting member 12 from being displaced to the outer surface of the first portion 111 in a stressed state.
Thus, when the first diameter is larger than the second diameter, the insulation limiting member 12 can be better clamped on the step surface between the first portion 111 and the second portion 112, so that the insulation limiting member 12 can better realize the positioning and limiting functions during fastening connection.
In some embodiments, the insulation limiting member 12 is sleeved on the second portion 112 by interference fit, gluing or thread fit.
Here, when the interference fit sleeving manner is adopted, the inner diameter of the insulation limiting member 12 is smaller than the second diameter of the second portion 112, or the difference between the inner diameter and the second diameter is smaller than a certain threshold.
In one embodiment, when gluing is used, the inner diameter of the insulation limiting member 12 may be equal to or smaller than the second diameter of the second portion 112, thereby further increasing the friction between the insulation limiting member 12 and the second portion 112.
In another embodiment, when the screw-fit manner is adopted, the inner surface of the insulation limiting member 12 may be provided with a first screw thread, and a portion of the outer surface of the second portion 112, which is in contact with the insulation limiting member 12, may be provided with a second screw thread, where the first screw thread and the second screw thread are mutually matched screw threads.
In some embodiments, the fastener 1 is used for connecting a heat dissipation plate with a heat generating module; the first portion 111 is configured to be mounted in a heat dissipation plate, and the second portion 112 is configured to be fixedly connected to the heat generating module.
In the embodiment of the present disclosure, the first portion 111 may be fitted in a mounting position or a mounting hole of the heat dissipation plate, and if the fastening member 1 further includes the elastic member 13, the elastic member 13 and the first portion 111 may be fitted together in the heat dissipation plate.
In one embodiment, the second portion 112 may be fixedly connected to the heat generating module by threads on the second section 1122. accordingly, the heat generating module may be provided with mounting holes in which threads matching the threads on the second section 1122 may be provided for fixedly mounting the fastener 1.
In another embodiment, the insulation limiting member 12 sleeved on the first section 1121 of the second portion 112 may be located between the heat dissipation plate and the heat generating module, for example, the outer diameter of the insulation limiting member 12 may be larger than the diameter of the mounting location on the heat dissipation plate and larger than the diameter of the mounting hole on the heat generating module.
In some embodiments, the upper surface of the insulation limiting member 12 is abutted with the first portion 111, and the lower surface of the insulation limiting member 2 is used for abutting with the heat generating module.
In the embodiment of the present disclosure, the upper surface of the insulation limiting member 12 may abut against a step surface formed between the first portion 111 and the second portion 112, for example, the outer diameter of the upper surface of the insulation limiting member 12 may be greater than or equal to the outer diameter of the step surface, and the inner diameter of the upper surface is equal to or smaller than the outer diameter of the step surface.
In one embodiment, the contact surface of the top surface of the insulation limiting member 12, which is abutted against the first portion 111, may be inside the heat sink or between the heat sink and the heat generating module.
In another embodiment, the fastening member 1 is fastened to the second surface of the heat generating module through the first surface of the heat dissipating plate, and the lower surface of the insulating limiting member 12 can contact the second surface of the heat generating module, so that the limiting function between the fastening member 1 and the heat generating module is realized.
Therefore, the faults of displacement, falling and the like when the insulation limiting part 12 realizes the positioning limiting function can be better reduced.
As shown in fig. 4, an embodiment of the present disclosure provides a heat dissipation module, including: a heat sink 2 and one or more of the fasteners 1 described above;
the fastener 1 is used for connecting the heat dissipation plate 2 and the heat generating module.
In the embodiment of the present disclosure, one end of the fastener 1 in the heat dissipation module is connected to the heat dissipation plate 2, and the other end is used for connecting to the heat generating module. The heat dissipation plate 2 may further include: a heat dissipation mesh surface, a refrigeration device and the like.
In one embodiment, the heat generating module may include a board facing the heat dissipation plate 2, and traces, components, and the like disposed on the board, and the heat dissipation plate 2 is used for dissipating heat generated by the board. The thickness of the deck may be less than or equal to the length of the second portion 112 of the fastener 1, or the thickness of the deck may be less than or equal to the length of the second section 1122, so that the fastener 1 can be better fitted to the deck.
In one embodiment, the heat dissipation plate 2 in the heat dissipation module may be connected with one or more fasteners 1 for increasing the stability of the assembly of the heat dissipation module.
In another embodiment, the heat dissipation module can be used to connect to one or more heat generating modules and dissipate heat generated by the one or more heat generating modules.
In another embodiment, when a plurality of fastening members 1 are connected to the heat dissipation plate 2, the distance between the fastening members 1 may be determined according to the voltage resistance of the fastening members 1, the voltage resistance of the heat generating module, and the like, wherein the voltage resistance of the fastening members 1 may be determined according to the area of the upper surface or the lower surface of the insulation stoppers 12 in the fastening members 1.
In yet another embodiment, the fastener 1 may be particularly useful for connecting with a heat generating module by means of a threaded fit, riveting, welding, or the like. Illustratively, fastener 1 engages the heat-generating module through threads provided on second portion 112 of shank 11
In some embodiments, the heat dissipation plate 2 has mounting locations thereon;
the first part 111 of the fastener 1 is assembled in the installation position, and the second part 112 of the fastener 1 is used for fixedly connecting with the heat-generating module; the insulation limiting part 12 of the fastener 1 is used for contacting with the heat generating module.
In the disclosed embodiment, the mounting position may be a cavity-type mounting position for partially or completely fitting the first portion 111 therein, wherein the mounting position is used for installing the opening of the first portion 111 of the fastener 1, and the diameter of the opening may be slightly larger than the diameter of the first portion 111. Thus, after the fastener 1 is installed in the installation position, the inner surface of the opening of the installation position can be tightly attached to the outer surface of the first part 111, and the stability of the fastener 1 is better improved.
In one embodiment, if the upper surface of the insulation limiting member 12 is close to the heat dissipation plate 2 and the lower surface is close to the heat generating module, the diameter of the upper surface of the insulation limiting member 12 may be equal to or larger than the diameter of the first portion 111, and/or the diameter of the opening of the mounting position may be equal to or smaller than the diameter of the upper surface of the insulation limiting member 12. Thus, the function of limiting the space between the heat dissipation plate 2 and the heat generating module by the insulation limiting member 12 can be improved.
In some embodiments, the fastener 1 further comprises: an elastic member 13;
the elastic part 13 is fitted in the mounting position together with the first part 111.
In the embodiment of the present disclosure, when the elastic member 13 is assembled with the first portion 111 in the mounting position, it is possible to achieve the effect of reducing the pressure of the heat dissipation plate 2 on the heat generating module by the amount of expansion and contraction of the elastic member 13, and further optimize the applicability of the heat dissipation module.
In one embodiment, when the elastic member 13 is a spring, the natural length of the elastic member without external force may be equal to or slightly greater than the length of the cavity of the mounting location, so as to be more beneficial to reducing the pressure of the heat dissipation plate 2 on the heat generating module.
As shown in fig. 5, an embodiment of the present disclosure provides an electronic device, including: a heat generating module 3 and one or more heat dissipation modules according to the above technical solutions;
and the fastener 1 in the heat dissipation module is used for connecting the heat generating module 3 and the heat dissipation plate 2 in the heat dissipation module.
In the embodiment of the present disclosure, the heat generating module 3 may be a module in which a chip and a circuit board wait for heat dissipation, for example, may be a printed circuit board PCB.
In some embodiments, the heat generating module 3 has a mounting hole;
the second portion 112 of the fastening member 1 is fixedly coupled to the heat generating module 3 through the mounting hole.
Here, the size of the mounting hole may be matched with the diameter of the second portion 112, and the second portion 112 penetrates or is embedded into the heat generating module 3 through the mounting hole for forming a fixed connection with the heat generating module 3.
In one embodiment, the mounting hole is used on the inner surface contacting with the second portion 112, and may be provided with a second thread matching with the first thread on the outer surface of the second portion 112, so as to realize the fixed connection of the second portion 112 with the heat generating module 3 through the mounting hole in a rotation-fit manner.
One specific example is provided below in connection with any of the embodiments described above:
as shown in fig. 6, an embodiment of the present disclosure provides a spring screw applied to a PCB board without avoiding wires under a positioning step, which mainly includes a threaded rod, a spring, and a nylon sleeve, wherein the nylon sleeve is crimped on a lower portion of the threaded rod through interference fit, and then the spring is assembled, and the positioning and the limiting of the spring screw are realized through a lower portion of the nylon sleeve.
Knurling is pressed at the position where the screw rod is matched with the nylon sleeve, so that the nylon sleeve is prevented from falling off due to external force. The heat sink is rotationally mounted on the circuit board through the spring screw of the embodiment of the disclosure, and the heat sink is in direct contact with the circuit board. The spring screw is in contact with the PCB through the lower part of the nylon sleeve to realize positioning and limiting of the spring screw, and the magnitude of the force of the radiator pressed on the chip can be controlled by controlling the compression amount of the spring.
In addition, the nylon sleeve is pressed on the polished rod of the screw rod through interference fit. Alternatively, nylon sleeves may be glued together, or nylon sleeves may be screwed together with threads in the holes.
The nylon sleeve is not limited to the material of the sleeve, and other plastic sleeves, such as PC, ABS, PMMA, PP, PA, etc., can be used.
The embodiment of the present disclosure provides a spring screw applied under a positioning step on a PCB board without avoiding a wire: the screw rod of the spring screw is in a step shape, a nylon sleeve is arranged below the step surface of the thick rod, the outer diameter of the nylon sleeve is consistent with that of the thick rod of the screw, and the inner diameter of the nylon sleeve is slightly smaller than that of the threaded part. The upper part of the screw rod with the thread part is not processed with threads, only the lower part is processed with threads, and the nylon sleeve is pressed into the unthreaded polished rod through interference fit and is positioned through the step surface of the screw.
Therefore, the installation positioning surface of the spring screw is changed into one surface of the nylon sleeve, corresponding welding pads are not required to be arranged on the PCB, the nylon sleeve can be used for wiring and arranging copper sheets in the contact area on the PCB, only devices are forbidden to be arranged, and the problem of tense layout of the PCB is greatly relieved.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (16)
1. A fastener, characterized in that the fastener comprises: a rod body and an insulation limiting part;
the rod body comprises a first part and a second part connected with the first part;
the insulation limiting piece is sleeved on the second part; the insulating locating part is used for being clamped between two devices which are fixedly connected through the fastener.
2. The fastener of claim 1, wherein the second portion includes a first section proximate the first portion and a second section distal from the first portion;
the insulation limiting piece is sleeved on the first section; and the second section is provided with threads.
3. The fastener of claim 2, wherein the outer surface of the first section is knurled.
4. The fastener of claim 1, wherein the insulation retainer is made of a material comprising:
insulating plastic;
and/or the presence of a gas in the gas,
and (4) insulating cloth.
5. Fastener according to claim 4, characterized in that the insulating plastic is nylon PA, polycarbonate PC, poly-acrylonitrile-butadiene-styrene ABS, polyethyl methacrylate PMMA or polypropylene plastic PP.
6. The fastener of claim 4, wherein the insulating cloth material comprises: nylon cloth.
7. The fastener of claim 1, further comprising: an elastic member; the elastic component is sleeved on the first part.
8. The fastener of claim 1, wherein a first diameter of the first portion is greater than a second diameter of the second portion.
9. The fastener of claim 1, wherein the insulator stop is sleeved on the second portion by interference fit, gluing, or threading.
10. The fastener of claim 1, wherein the fastener is used to connect a heat sink to a heat generating module; the first part is used for being assembled in a heat dissipation plate, and the second part is used for being fixedly connected with the heat generating module.
11. The fastener of claim 10, wherein an upper surface of the insulator stop abuts the first portion and a lower surface of the insulator stop is configured to abut the heat-generating module.
12. The utility model provides a heat dissipation module which characterized in that, heat dissipation module includes: a heat sink and a fastener as claimed in any one of claims 1 to 11;
the fastener is used for connecting the heat dissipation plate and the heat generating module.
13. The heat dissipation module of claim 12, wherein the heat dissipation plate has mounting locations thereon;
a first part of the fastener is assembled in the installation position, and a second part of the fastener is used for being fixedly connected with the heat generating module; the insulating locating part of fastener, be used for with heat production module contact.
14. The heat dissipation module of claim 13, wherein the fastener further comprises: an elastic member;
the elastic member is fitted in the mounting position together with the first part.
15. An electronic device, characterized in that the device comprises: a heat generating module and the heat dissipation module of any of claims 12-14;
and the fastener in the heat dissipation module is used for connecting the heat generating module and the heat dissipation plate in the heat dissipation module.
16. The apparatus of claim 15, wherein the heat generating module has a mounting hole;
the second part of the fastener is fixedly connected with the heat generating module through the mounting hole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123348781.8U CN217336227U (en) | 2021-12-28 | 2021-12-28 | Fastener, heat dissipation module and electronic equipment |
| PCT/CN2022/131151 WO2023124569A1 (en) | 2021-12-28 | 2022-11-10 | Fastener, heat dissipation module and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123348781.8U CN217336227U (en) | 2021-12-28 | 2021-12-28 | Fastener, heat dissipation module and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217336227U true CN217336227U (en) | 2022-08-30 |
Family
ID=82992272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123348781.8U Active CN217336227U (en) | 2021-12-28 | 2021-12-28 | Fastener, heat dissipation module and electronic equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN217336227U (en) |
| WO (1) | WO2023124569A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023124569A1 (en) * | 2021-12-28 | 2023-07-06 | 北京比特大陆科技有限公司 | Fastener, heat dissipation module and electronic device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7283368B2 (en) * | 2005-10-21 | 2007-10-16 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipating assembly |
| CN102573376B (en) * | 2012-02-27 | 2015-01-21 | 华为技术有限公司 | Insulation structure used for fixing electronic element, electronic element and component |
| CN103687416B (en) * | 2012-08-31 | 2016-05-11 | 富瑞精密组件（昆山）有限公司 | Heat abstractor |
| CN211017061U (en) * | 2019-11-06 | 2020-07-14 | 西安诺瓦星云科技股份有限公司 | Heat dissipation device and heat dissipation assembly |
| CN217336227U (en) * | 2021-12-28 | 2022-08-30 | 北京比特大陆科技有限公司 | Fastener, heat dissipation module and electronic equipment |
-
2021
- 2021-12-28 CN CN202123348781.8U patent/CN217336227U/en active Active
-
2022
- 2022-11-10 WO PCT/CN2022/131151 patent/WO2023124569A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023124569A1 (en) * | 2021-12-28 | 2023-07-06 | 北京比特大陆科技有限公司 | Fastener, heat dissipation module and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023124569A1 (en) | 2023-07-06 |
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