CN211820364U

CN211820364U - Double-shaft heat dissipation hinge

Info

Publication number: CN211820364U
Application number: CN202020203899.8U
Authority: CN
Inventors: 张瑞鸿; 张信忠; 林诗尧
Original assignee: Jarllytec Co Ltd
Current assignee: Jarllytec Co Ltd
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-10-30
Anticipated expiration: 2030-02-24

Abstract

The double-shaft heat dissipation hinge of the utility model comprises a heat conducting fin, wherein two ends of the heat conducting fin are respectively coupled with a first plate body and a second plate body of an electronic device, a first rotating shaft at one end of the first plate body is parallel to a second rotating shaft at one end of the second plate body and is connected in a way of reverse rotation, so that the second plate body covers or unfolds relative to the first plate body; one end of a first clamping rod is coupled with the first rotating shaft in a relatively rotating mode, and the first clamping rod comprises two first semicircular rod bodies which are oppositely clamped so as to enable the heat conducting fins to penetrate through to clamp the limiting heat conducting fins; one end of a second clamping rod is coupled with the second rotating shaft in a relatively rotating mode, and the second clamping rod comprises two second semicircular rod bodies which are oppositely clamped, so that the heat conducting fins penetrate through the second semicircular rod bodies to clamp the limiting heat conducting fins.

Description

Double-shaft heat dissipation hinge

Technical Field

The present invention relates to a dual-axis heat dissipation hinge, and more particularly to a dual-axis heat dissipation hinge installed on a foldable electronic device.

Background

General folding electronic devices, for example: notebook computers, tablet computers or mobile phones, etc. are mainly connected with a first board body and a second board body of an electronic device respectively through a single-shaft hinge or a double-shaft hinge. The first plate body can be an upper cover for installing the display screen, the second plate body can be a base for installing components, batteries and a keyboard, and the first plate body can be covered relative to the second plate body or can be turned to 360 degrees from 0 degree.

The various foldable electronic devices described above mainly use a CPU as the main body of operation, and the operation of the CPU dissipates power at a centralized location, which may cause an overheating condition. Generally, when the temperature of the CPU reaches a certain value, the CPU operates at a lower clock speed to reduce power consumption, thereby reducing power consumption. However, as the clock speed of the CPU decreases, the processing speed also decreases, which results in slow response and reduced performance of the system.

Therefore, in order to maintain the CPU operating efficiently at high power consumption, U.S. patent publication No. US10401926B1, for example, shows a heat sink structure having a graphite heat sink 178, the graphite heat sink 178 spanning first and second rotationally coupled housing portions (12,14), the heat sink 178 being thermally coupled to each housing portion (12,14) such that the transfer of thermal energy through the heat sink 178 averages the system temperature at a given thermal state. The length of the graphite heat sink 178 can be adjusted when the foldable electronic device is folded or unfolded by a tensioning mechanism associated with the hinge 18, wherein the tensioning mechanism mainly comprises a first tensioning assembly 180 and a second tensioning assembly 180, each of the first tensioning assembly 180 and the second tensioning assembly 180 comprises a first parallel tensioning rod 184 and a second parallel tensioning rod 184, the first parallel tensioning rod 184 and the second parallel tensioning rod 184 define a slot 182, and the graphite heat sink 178 is inserted into the slot 182; and the tension assembly 180 is snapped into place on the hinge 18, the graphite heat sink 178 is then thermally coupled to the housing portions 12 and 14 in a fixed position, such as by an adhesive.

However, the graphite heat sink disclosed in the above-mentioned US10401926B1 mainly adjusts the length of the graphite heat sink through a tensioning mechanism, and each tensioning assembly is composed of two parallel round rods, so that the overall size of the graphite heat sink is increased due to the structural design thereof, which is not only disadvantageous to the overall design of the electronic device, but also not suitable for the market demand that the overall size tends to be light and thin. In view of the above, the inventor has experienced many years and has continuously researched and developed improvements, and thus provides a structure different from the prior art, and improves the disadvantages of the prior art structure, which leads to the creation of the present invention.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a biaxial heat dissipation hinge, the straining device action of the preceding case can be simplified to the whole bulky and unfavorable for the problem of global design of the preceding case of solution, with effectively reduce whole thickness in order to do benefit to the design, and reduce the produced influence of other spare part sizes, reach whole light in volume, thin market demand in order to promote the sale.

In order to achieve the above object of the present invention, the dual-axis heat dissipation hinge comprises a heat conducting fin, a first clamping rod and a second clamping rod. One end of the heat conducting strip is coupled with a first plate body of an electronic device, the other end of the heat conducting strip is coupled with a second plate body of the electronic device, one end of the first plate body is provided with a first rotating shaft, one end of the second plate body is provided with a second rotating shaft, the second rotating shaft is parallel to the first rotating shaft, and the second rotating shaft is connected with the first rotating shaft in a reverse rotating mode, so that the second plate body is covered or unfolded relative to the first plate body; one end of the first clamping rod is coupled with the first rotating shaft in a relatively rotating mode, and the first clamping rod comprises two first semicircular rod bodies which are oppositely clamped and used for the heat conducting fins to penetrate so as to clamp the limiting heat conducting fins; and one end of the second clamping rod is coupled with the second rotating shaft in a relatively rotating mode, and the second clamping rod comprises two second semicircular rod bodies which are oppositely clamped, so that the heat conducting fins penetrate to clamp the limiting heat conducting fins.

When implementing, the utility model discloses still include the first flat board of two relative clampings, two first flat boards of two first semicircle rod body clampings, and the conducting strip passes between two first flat boards in order to carry spacing conducting strip.

When the first semicircular rod body is implemented, the first semicircular rod body is provided with a first plane, the first plane is provided with a first limiting part, and the plate surface of the first flat plate is provided with a first stopping part for stopping the first limiting part.

When the first blocking portion is implemented, the first blocking portion comprises two first arc-shaped convex blocks, and the two first arc-shaped convex blocks extend outwards from two sides of the surface of the first flat plate at an angle.

When implementing, the utility model discloses still include the second flat board of two relative pinches, two second semicircle body of rod pinches two second flat boards, and the conducting strip passes between two second flat boards in order to carry spacing conducting strip.

When the second semi-circular rod is implemented, the second semi-circular rod body is provided with a second plane, a second limiting part is arranged on the second plane, and a second stopping part is arranged on the surface of the second flat plate and used for stopping the second limiting part.

When the second stop portion is implemented, the second stop portion comprises two second arc-shaped convex blocks, and the two second arc-shaped convex blocks extend outwards from two sides of the surface of the second flat plate at an angle.

When in use, the utility model also comprises a first bearing, a second bearing and a connecting piece, wherein the first bearing is sleeved with a first shaft lever with a smaller diameter at one end of the first clamping rod, and one end of the first rotating shaft is provided with a first shaft hole for being coupled with the first shaft lever at one end of the first clamping rod; the second bearing is sleeved on a second shaft rod with one end of the second clamping rod and smaller in diameter, and one end of the second rotating shaft is provided with a second shaft hole for being in shaft connection with the second shaft rod at one end of the second clamping rod; the two halves of the connecting piece are respectively provided with a first positioning groove and a second positioning groove for respectively positioning the first bearing and the second bearing.

In practice, the other end of the first rotating shaft is provided with a first through hole, and the middle section of the first rotating shaft is provided with a first upper cutting groove and a first lower cutting groove which are mutually staggered, and the first upper cutting groove is communicated with the first through hole so as to lead the electric wire to pass through.

In practice, the other end of the second rotating shaft is provided with a second through hole and a second upper cutting groove and a second lower cutting groove which are mutually staggered in the middle section, and the second upper cutting groove is communicated with the second through hole so as to lead the electric wire to pass through.

When the device is used, a first gear is fixed at the other end of the first rotating shaft in a shaft connection mode, a second gear is fixed at the other end of the second rotating shaft in a shaft connection mode, and the first gear is meshed with the second gear, so that the first rotating shaft and the second rotating shaft rotate reversely.

When in use, the utility model also comprises at least one torsion sheet and a cap, wherein, both ends of the at least one torsion sheet are respectively provided with a C-shaped clamping part for respectively clamping and positioning the other end of the first rotating shaft and the other end of the second rotating shaft; the cap is sleeved and covered with the first gear, the second gear and the at least one torsion piece.

In order to facilitate a deeper understanding of the present invention, it will be described in detail later.

Drawings

Fig. 1 is a schematic perspective view of a preferred embodiment of the present invention;

FIG. 2 is an exploded view of a portion of the components of the preferred embodiment of the present invention;

FIG. 3 is an exploded view of the gear-driven hollow shaft assembly according to the preferred embodiment of the present invention;

FIG. 4 is an exploded view of a portion of the components of the preferred embodiment of the present invention;

fig. 5 is a schematic perspective view of the first plate and the second plate of the preferred embodiment of the present invention in a closed state;

fig. 6 is a cross-sectional view of the first plate and the second plate of the preferred embodiment of the present invention in a closed state;

fig. 7 is a schematic view of a usage state when the first plate body and the second plate body of the preferred embodiment of the present invention are turned over to 45 degrees;

fig. 8 is a schematic view of a usage state when the first plate body and the second plate body of the preferred embodiment of the present invention are turned over to 90 degrees;

fig. 9 is a schematic view of a usage state of the first plate and the second plate of the present invention in a preferred embodiment of the present invention being turned over to 135 degrees.

Description of the reference numerals

Double-shaft heat dissipation hinge 1 heat conducting fin 2

First clamping rod 3 first

semicircular rod body

31, 31'

First plane 311,311 'first stopper portions 32, 32'

First shaft 33 first bearing 4

The first positioning slot 411 of the connecting member 41

Second positioning groove 412 second bearing 42

First stopper 51,51 'of first flat plate 5, 5'

First arc protrusion 511,511' and second clamping bar 6

Second semicircular rod body 61,61 'second plane 611,611'

Second shaft 63 of second position-limiting

part

62,62

Second plate 7,7 'second stopper 71, 71'

Second arc convex block 711, 711' gear synchronous type hollow shaft group 8

First shaft hole 811 of first rotating shaft 81

First upper cutting groove 812 and first lower cutting groove 813

First through hole 814 and second shaft 82

Second shaft hole 821 second upper cutting groove 822

Second undercut groove 823 second through hole 824

First gear 83 second gear 84

Torsion piece 85C has

clamp portions

851, 851'

First plate 91 of cap 86

A second plate 92.

Detailed Description

Referring to fig. 1 to 4, a first clamping bar 3 and a second clamping bar 6 of the dual-axis heat dissipation hinge 1 of the present invention are respectively coupled to a first rotating shaft 81 and a second rotating shaft 82 in a relatively rotatable manner, the first rotating shaft 81 is connected to one end of a first plate 91 of an electronic device, the second rotating shaft 82 is connected to one end of a second plate 92 of the electronic device, wherein the first plate 91 is installed on a base having components, batteries, and a keyboard, and the second plate 92 is installed on a cover where a display screen is located, but not limited thereto, the cover and the base can be a touch display screen, and the second rotating shaft 82 is parallel to the first rotating shaft 81, and the second rotating shaft 82 is connected to the first rotating shaft 81 in a counter-rotatable manner, so as to cover or unfold the second plate 92 relative to the first plate 91.

The utility model discloses double-shaft heat dissipation hinge 1's preferred embodiment includes a conducting strip 2, a first clamping bar 3, a first bearing 4, a connecting piece 41, two first boards 5,5 ', a second clamping bar 6, a second bearing 42, two second boards 7,7 ' and a gear with the hollow shaft group 8 of dynamic formula. The heat conducting sheet 2 is a continuous sheet of one or more layers of graphene, and can effectively transfer heat energy in a plane; the two end surfaces of the heat conducting strip 2 are respectively bonded with the adhesive, and are respectively coupled to the surfaces of the first plate 91 and the second plate 92, so as to enhance the heat conductivity of the heat source inside the first plate 91 and the second plate 92, and to transfer heat energy and dissipate heat.

The first clamping bar 3 comprises two first

semicircular bar bodies

31,31 ', each first

semicircular bar body

31,31 ' is provided with a first plane 311,311 ', two side edges of each first plane 311,311 ' form a fillet, and the two fillet edges are combined to form a first limiting part 32,32 '; the two first

semi-circular rods

31, 31' are approximately circular rod-shaped after being clamped, and a first shaft 33 with a smaller diameter is formed at one end of the first clamping rod 3, the first bearing 4 is sleeved outside the first shaft 33, and the first bearing 4 is fixed in the first positioning groove 411 of one of the two halves of the connecting piece 41. The two first flat plates 5,5 ' are oppositely clamped between the two first planes 311,311 ' of the two first

semicircular rods

31,31 ' and clamped to limit the heat conducting strip 2 after the heat conducting strip 2 passes through; the first blocking portion 51,51 'is disposed on the first plate 5, 5', and the first blocking portion 51,51 'includes two first arc protrusions 511,511', and the two first arc protrusions 511,511 'extend outward from two sides of the first plate 5, 5' at an angle, so that the two first arc protrusions 511,511 'block outside the rounded edges of the first

semicircular rods

31, 31', respectively, to block and prevent the two first plates 5,5 'from sliding relative to the two first

semicircular rods

31, 31'.

The second clamping bar 6 comprises two second semicircular bar bodies 61,61 ', wherein any one of the second semicircular bar bodies 61,61 ' is provided with a second plane 611,611 ', two side edges of the second plane 611,611 ' form a fillet respectively, and the two fillet edges are combined to form a second limiting part 62,62 '; the two second semicircular rods 61, 61' are formed into a circular rod shape after being clamped, a second shaft 63 with a smaller diameter is formed at one end of the second clamping rod 6, the second bearing 42 is sleeved outside the second shaft 63, and the second bearing 42 is fixed in the second positioning groove 412 of the other half of the two halves of the connecting member 41. The two second plates 7,7 ' are oppositely clamped between the two second planes 611,611 ' of the two second semicircular rod bodies 61,61 ', and are clamped to limit the heat conducting strip 2 after the heat conducting strip 2 passes through; the second stopping portion 71,71 'is disposed on the plate surface of any one of the second plates 7, 7', and the second stopping portion 71,71 'includes two second arc protrusions 711, 711', and the two second arc protrusions 711,711 'are respectively formed by two sides of the plate surface of the second plate 7, 7' extending outward at an angle, so that the two second arc protrusions 711,711 'are respectively blocked outside the rounded edges of the two sides of the second semicircular rod bodies 61, 61', to stop and prevent the two second plates 7,7 'from sliding relative to the two second semicircular rod bodies 61, 61'.

The gear-driven hollow shaft assembly 8 includes a first shaft 81, a second shaft 82, a first gear 83, a second gear 84, at least one torque plate 85 and a cap 86, wherein one end of the first shaft 81 has a first shaft hole 811 for coupling with the first shaft 33 at one end of the first clamping bar 3; the middle section of the first rotating shaft 81 has a first upper cutting groove 812 and a first lower cutting groove 813 which are staggered with each other, and one end of the first plate 91 is locked at the first lower cutting groove 813; one axial end of the first upper cutting groove 812 is adjacent to a first through hole 814 formed at the other end of the first rotating shaft 81, so that the first upper cutting groove 812 communicates with the first through hole 814, and the electric wire can pass through the first upper cutting groove 812, pass through the first through hole 814 and be positioned in the cap 86 at the other end of the first rotating shaft 81.

One end of the second shaft 82 has a second shaft hole 821 for coupling with the second shaft 63 at one end of the second clamping bar 6; the middle section of the second shaft 82 has a second upper slot 822 and a second lower slot 823 which are staggered with each other, and one end of the second plate 92 is locked to the second lower slot 823; one axial end of the second upper slot 822 is adjacent to a second through hole 824 at the other end of the second shaft 82, so that the second upper slot 822 is communicated with the second through hole 824, and the wire can pass through the second upper slot 822, pass through the second through hole 824 and be positioned in the cap 86 at the other end of the second shaft 82, and the wire is bent in the cap 86 to be turned to pass through the first through hole 814 and the second through hole 824.

The other end of the first rotating shaft 81 is fixed with a first gear 83 in a shaft coupling manner, the other end of the second rotating shaft 82 is fixed with a second gear 84 in a shaft coupling manner, the first gear 83 is meshed with the second gear 84, and the first plate body 91 and the second plate body 92 can be relatively covered or unfolded through the meshing reverse rotation of the first gear 83 and the second gear 84. And both ends of at least one torsion bar 85 are respectively provided with a C-shaped clamping part 851,851 ', and two C-shaped

clamping parts

851, 851' respectively clamp and position the other end of the first rotating shaft 81 and the other end of the second rotating shaft 82; a preset torque value can be achieved by clamping and positioning the first rotating shaft 81 and the second rotating shaft 82 through two ends of at least one torsion sheet 85, so that the second plate 92 can be freely stopped or positioned at a preset angle position when rotating relative to the first plate 91; the cap 86 is sleeved on and covers the first gear 83, the second gear 84 and the at least one torsion piece 85 to achieve the protection and limiting effects.

Therefore, as shown in fig. 5 and 6, when the first plate 91 and the second plate 92 are in a closed state, two end planes of the heat conducting strip 2 are respectively coupled to the plate surfaces of the first plate 91 and the second plate 92, and the middle section of the heat conducting strip 2 firstly passes through the two first flat plates 5,5 'in the first clamping bar 3 to be limited between the two first flat plates 5, 5', and then sequentially passes through the two second flat plates 7,7 'in the second clamping bar 6 to be limited between the two second flat plates 7, 7'. As shown in fig. 2, 4, and 7 to 9, when the second plate 92 is unfolded relative to the first plate 91, since the outer portion of the first shaft 33 is sleeved with the first bearing 4, the outer portion of the second shaft 63 is sleeved with the second bearing 42, and the two halves of the connecting member 41 respectively position the first shaft 33 and the second bearing 42, the first clamping bar 3 and the second clamping bar 6 can be automatically rotated and aligned as a gyroscope or a level; since the two first plates 5,5 'and the two second plates 7, 7' respectively limit the heat conducting strip 2, sufficient friction force can be generated, and the heat conducting strip 2 can form effective tension force.

Therefore, the utility model has the advantages of it is following:

1. the utility model discloses a two clamping bars comprise two semicircle body of rod respectively to replace prior art and be two sets of tensioning assembly that constitute with four parallel round bars, consequently, can effectively reduce radial dimension, make to be favorable to the design in order to reduce whole volume, and reach the market demand of whole volume slimming.

2. The utility model discloses an other end of first pivot and second pivot all has the through-hole to have two mutually staggered grooving respectively in respective middle zone section, and separately the grooving communicates with through-hole separately each other, consequently, can make the electric wire pass respectively in order to save the equipment space, and let the equipment operation more efficient.

3. Compared with the prior art, the utility model adds the arrangement of the ball bearing, and can lead the two clamping rods to be capable of automatically guiding as a gyroscope or a level meter in the process of relatively expanding or covering the two plate bodies, thereby reducing the probability of the heat conducting strip being damaged due to the concave folding; and still be equipped with two flat boards between two semicircle body of rod of every clamping bar with the centre gripping conducting strip, then can prevent that the conducting strip from sliding wantonly at the rotation in-process of two plate bodys, and can effectively reach the effect of tensioning.

Although the present invention has been described with reference to the preferred embodiments for achieving the above objects, it should be understood by those skilled in the art that the present invention is not limited to the disclosed embodiments, but rather, the present invention is applicable to any other variations or modifications within the spirit of the present invention.

Claims

1. A dual-axis heat dissipation hinge, comprising:

one end of the heat conducting sheet is coupled with a first plate body of an electronic device, the other end of the heat conducting sheet is coupled with a second plate body of the electronic device, one end of the first plate body is provided with a first rotating shaft, one end of the second plate body is provided with a second rotating shaft, the second rotating shaft is parallel to the first rotating shaft, and the second rotating shaft is connected with the first rotating shaft in a reverse rotating mode so as to cover or unfold the second plate body relative to the first plate body;

one end of the first clamping rod is coupled with the first rotating shaft in a relatively rotating mode, and the first clamping rod comprises two relatively clamped first semicircular rod bodies for the heat conducting strip to pass through so as to clamp and limit the heat conducting strip; and

and one end of the second clamping rod is coupled with the second rotating shaft in a relatively rotating mode, and the second clamping rod comprises two second semicircular rod bodies which are oppositely clamped, so that the heat conducting strip passes through to clamp and limit the heat conducting strip.

2. The dual-axis heat dissipation hinge of claim 1, further comprising two opposing first plates, wherein the two first semicircular rods clamp the two first plates, and the heat conductive fin passes between the two first plates to clamp and limit the heat conductive fin.

3. The dual-axis heat dissipation hinge of claim 2, wherein the first semicircular rod has a first plane, the first plane has a first position-limiting portion thereon, and the first flat plate has a first stop portion on the plate surface thereof for stopping the first position-limiting portion.

4. The dual-axis heat dissipation hinge of claim 3, wherein the first stop portion comprises two first arc protrusions, and the two first arc protrusions extend outward from two sides of the first plate at an angle.

5. The dual-axis heat dissipation hinge of claim 2, further comprising two opposing second plates, wherein the two second semicircular rods clamp the two second plates, and the heat conducting strip passes through between the two second plates to clamp and limit the heat conducting strip.

6. The dual-axis heat dissipation hinge of claim 5, wherein the second semi-circular rod has a second plane, the second plane has a second position-limiting portion, and the second plate has a second stop portion for stopping the second position-limiting portion.

7. The dual-axis heat dissipation hinge of claim 6, wherein the second stop portion comprises two second arc protrusions, and the two second arc protrusions extend outward from two sides of the second plate at an angle.

8. The dual-shaft heat dissipation hinge of claim 1, further comprising a first bearing, a second bearing, and a connecting member, wherein the first bearing is sleeved on a first shaft rod with a smaller diameter at one end of the first clamping rod, and one end of the first rotating shaft has a first shaft hole for being coupled to the first shaft rod at one end of the first clamping rod; the second bearing is sleeved on a second shaft rod with one end of the second clamping rod and smaller in diameter, and one end of the second rotating shaft is provided with a second shaft hole for being in shaft connection with the second shaft rod at one end of the second clamping rod; the two halves of the connecting piece are respectively provided with a first positioning groove and a second positioning groove for respectively positioning the first bearing and the second bearing.

9. The dual-axis heat dissipation hinge of claim 1, wherein the other end of the first shaft has a first through hole and has a first upper slot and a first lower slot in the middle section, the first upper slot and the first lower slot being staggered with each other, the first upper slot communicating with the first through hole for passing the electric wire therethrough.

10. The dual-axis heat dissipation hinge as claimed in claim 9, wherein the second shaft has a second through hole at the other end thereof and a second upper slot and a second lower slot which are staggered with each other at a middle section thereof, the second upper slot communicating with the second through hole for passing the electric wire therethrough.

11. The dual-shaft heat dissipation hinge of claim 1, wherein a first gear is fixed to the other end of the first shaft, a second gear is fixed to the other end of the second shaft, and the first gear engages with the second gear, so that the first shaft and the second shaft rotate in opposite directions.

12. The dual-shaft heat dissipation hinge according to claim 11, further comprising at least one torsion piece and a cap, wherein the at least one torsion piece has C-shaped clamping portions at two ends thereof for clamping and positioning the other end of the first shaft and the other end of the second shaft; the cap is sleeved and covered on the first gear, the second gear and the at least one torsion piece.