TWI447558B - Portable computer and heat dissipating hinge thereof - Google Patents

Description

Portable computer and its heat conduction hub

The present invention relates to an electronic device, and more particularly to a heat transfer hub for a portable computer.

A conventional portable computer generally includes two main parts, a main body and a display panel, and the main body and the display panel are coupled by a pivot, and the display panel is pivotable relative to the main body by a pivot. When the portable computer is running, the heat generated by the heat-generating electronic components in the host is much larger than the heat generated by the heat-generating electronic components in the display panel. The industry generally uses only the space of the host to dissipate heat from the internal heat-generating electronic components. With the advancement of electronic technology, the computing speed of the portable computer is getting faster and faster, and the heat generated in the host is also getting larger and larger, and only the space of the host is used for heat dissipation, which cannot effectively solve the heat dissipation problem of the portable computer.

In view of this, it is necessary to provide a portable computer with a better heat dissipation effect and a heat transfer hub thereof.

A heat-conducting hub includes a body, an upper cover, a first heat pipe and a second heat pipe. The upper cover is disposed on the top of the body, and the first receiving portion and the second receiving portion are respectively disposed on the body, and the first receiving portion and the second receiving portion are respectively opened The first receiving slot and the second receiving slot, the first receiving slot of the main body and the upper cover form an accommodating space, and the evaporation section of the first heat pipe receives The condensing section of the second heat pipe is received in the second receiving groove.

A portable computer includes a host, a display panel, a heat conducting hinge and a pivot, and is pivotally connected between the host and the display panel, and the heat conducting hinge is connected between the host and the display panel, and the display panel can be pivoted and thermally simultaneously The hub is rotated relative to the main body. The heat conducting hub comprises a body, an upper cover, a first heat pipe and a second heat pipe. The upper cover is disposed on the top of the body, and the first receiving portion and the second receiving portion are respectively disposed on the body, the first receiving portion and the second portion The accommodating portion defines a first receiving slot and a second receiving slot. The first receiving slot of the main body and the upper cover form an accommodating space. The evaporating section of the first heat pipe is received in the accommodating space and can be rotated relative to the body. The condensation section of the heat pipe is received in the second receiving groove, and the evaporation section of the second heat pipe is thermally connected to the heat-generating electronic component in the main body, and the condensation section of the first heat pipe is disposed on the display panel, and the heat of the heat-generating electronic component in the host body is The two heat pipes are transferred to the heat transfer hub, and then transferred from the heat transfer hinge to the display panel through the first heat pipe.

Compared with the prior art, the heat conducting hub of the present invention can transfer the heat generated by the heat-generating electronic chip in the host to the display panel, and simultaneously dissipate heat from the heat-generating electronic chip by using the space of the host and the display panel, and can also serve as an auxiliary pivot. The shaft acts, together with the pivot, causes the main unit to rotate relative to the display panel.

1‧‧‧Host

2‧‧‧ display panel

3‧‧‧ pivot

4‧‧‧ Thermal junction

10‧‧‧ portable computer

11‧‧‧Heat-conducting hub

12‧‧‧ pivot seat

31‧‧‧ shaft

32‧‧‧Installation Department

33‧‧‧Second mounting hole

34‧‧‧ screws

41‧‧‧Ontology

43‧‧‧上盖

44‧‧‧First heat pipe

45‧‧‧First support ring

46‧‧‧second support ring

47‧‧‧Seal

48‧‧‧ cushion

49‧‧‧second heat pipe

50‧‧‧floor

111‧‧‧ Reception trough

112‧‧‧ receiving holes

113‧‧‧ bottom

114‧‧‧First mounting hole

121‧‧‧ receiving holes

411‧‧‧First Housing Department

413‧‧‧First storage trough

414‧‧‧ Second Housing Department

415‧‧‧Second holding trough

416‧‧‧ bottom

417‧‧‧ top

420‧‧‧Positioning column

421‧‧‧ bottom

422‧‧‧First mounting plate

423‧‧‧Second installation board

424‧‧‧4th mounting hole

426‧‧‧ Third mounting hole

431‧‧‧ vault

432‧‧‧Flange

433‧‧‧Positioning holes

434‧‧‧ inner wall

436‧‧‧ accommodating space

439‧‧‧5th mounting hole

443‧‧‧Free end

451‧‧‧through hole

452‧‧‧ Ring groove

481‧‧‧Positioning holes

489‧‧‧6th mounting hole

501‧‧‧ upper surface

502‧‧‧ lower surface

412, 435 ‧ ‧ steps

441, 492‧‧Evaporation section

442, 491‧‧ ‧ Condensation section

1 is a schematic view showing the assembly of a portable computer according to a preferred embodiment of the present invention.

Figure 2 is a partially enlarged schematic view of II of Figure 1.

3 is a schematic view showing the explosion of the host and the heat conducting hinge and the pivot in FIG.

4 is a schematic view showing the assembly of the heat conducting hub and the heat generating electronic component of FIG.

FIG. 5 is a schematic view showing the explosion of the heat conduction hub of FIG. 1. FIG.

FIG. 6 is a schematic perspective view of the body of FIG. 5 after being turned 180 degrees.

Figure 7 is a perspective view of the upper cover of Figure 5 after being turned 180 degrees.

As shown in FIG. 1 , FIG. 2 and FIG. 3 , the portable computer 10 includes a main body 1 , a display panel 2 , a pivot 3 , and a heat transfer hinge 4 , and heat generating electronic components (not shown) are disposed in the main body 1 . The two ends of the rear side of the main body 1 are respectively formed to form a pivot seat 12 and a heat transfer hinge seat 11. The pivot seat 12 is used for mounting the pivot shaft 3. The heat transfer hinge seat 11 defines a receiving slot 111 for mounting the heat conduction hub 4, and the heat conduction hub A first mounting hole 114 is defined in the top surface of the seat 11. The first mounting hole 114 is used to fix the heat conducting hinge 4 to the heat conducting hinge base 11. The main body 1 and the display panel 2 are connected by a pivot 3 and a heat conducting hinge 4, Moreover, the display panel 2 can be rotated relative to the main body 1 by the pivot 3 and the heat transfer hinge 4 at the same time. The pivoting seat 12 defines a receiving hole 121. The pivoting shaft 3 includes a rotating shaft 31 and a plate-shaped mounting portion 32. The mounting portion 32 is formed from one end of the rotating shaft 31, and the rotating shaft 31 is received in the receiving portion of the pivoting seat 12. The hole 121 is rotatable relative to the pivot seat 12, and the mounting portion 32 is provided with three second mounting holes 33. The three screws 34 respectively pass through the second mounting holes 33 of the mounting portion 32 and fix the pivot 3 to the display panel. 2 on.

Referring to FIG. 4, FIG. 5 and FIG. 6, the heat conduction hub 4 includes a body 41, an upper cover 43, a bottom plate 50, a first heat pipe 44 and a second heat pipe 49. The body 41 is made of a highly thermally conductive material, and the body 41 is The first accommodating portion 411 and the second accommodating portion 414 are disposed. The first accommodating portion 411 is located at the top 417 of the main body 41. The second accommodating portion 414 is located at the bottom 421 of the main body 41. The first receiving portion 411 defines a semicircular first receiving slot. 413, the second receiving portion 414 defines a second rectangular receiving slot 415, the aperture of the first receiving slot 413 is larger than the aperture of the middle portion thereof, and the two ends of the first receiving slot 413 intersect with the intermediate portion respectively A step 412 is formed, and a lubricant is disposed in a middle portion of the first receiving groove 413. The central portion of the top portion 417 of the main body 41 protrudes horizontally outwardly from the two sides of the first receiving groove 413 to form two flanges 425. A third mounting hole 426 is defined in each of the flanges 425. A positioning post 420 is respectively disposed in the center of the upper direction. A first mounting plate 422 and a second mounting plate 423 are formed on one side of the main body 41, and a fourth mounting hole 424 is defined in the first mounting plate 422 and the second mounting plate 423, respectively. Screws 34 (please refer to FIG. 4 together) cooperate to secure the body 41 to the main assembly 1.

Referring to FIG. 7 together, the upper cover 43 is in the shape of an arch bridge, and includes a semicircular dome 431 and two flanges 432. The flange 432 is horizontally extended from both sides of the dome 431, and the center of each flange 432 The extension width of the portion is greater than the extension width of the two ends, and a fifth mounting hole 439 is defined in each of the flanges 432. A positioning hole 433 is defined in the center of each flange 432, and the positioning hole 433 and the body 41 are respectively The positioning post 420 is matched. The central portion of the inner wall surface 434 of the upper cover 43 has a smaller aperture than the two ends. The two ends of the inner wall surface 434 of the dome 431 form a step 435, and the aperture of the middle portion of the dome 431 is The aperture of the middle portion of the receiving slot 413 is equivalent, and the apertures at both ends of the dome 431 are equivalent to the apertures at both ends of the first receiving slot 413. The upper cover 43 is disposed above the main body 41 and the flange 432 is flatly attached to the top portion 417 of the main body 41. The inner wall surface 434 of the upper cover 43 and the first receiving groove 413 of the main body 41 form a round pin-shaped receiving space 436 (please Referring to FIG. 4), the apertures at both ends of the accommodating space 436 are larger than the apertures of the central portion thereof.

One end of the first heat pipe 44 is an evaporation section 441, and the evaporation section 441 is a circular tube. The first support ring 45 and the second support ring 46 made of a copper material are interposed between the two ends of the evaporation section 441 of the first heat pipe 44. . The first support ring 45 has a cylindrical shape, and the outer diameter of the first support ring 45 is equivalent to the aperture at both ends of the accommodating space 436, and a through hole 451 is defined in the center thereof. The diameter of the 451 is the same as the diameter of the evaporation section 441 of the first heat pipe 44. The evaporation section 441 of the first heat pipe 44 is disposed in the through hole 451. A ring groove 452 is formed on the outer circumference of the first support ring 45. The 452 is used to seal the lubricant in the first receiving groove 413. The second support ring 46 has the same structure as the first support ring 45. The first support ring 45 and the second support ring 46 are welded and fixed to the evaporation section 441 of the first heat pipe 44 by the respective through holes 451, so that the first receiving groove The lubricant in 413 is sealed between the first support ring 45 and the second support ring 46. The evaporation section 441 of the first heat pipe 44 has a diameter corresponding to the central portion of the accommodating space 436. The evaporation section 441 is accommodated in the accommodating space 436 together with the first support ring 45 and the second support ring 46, and the evaporation section 441 is accommodated. The central portion of the accommodating space 436 is in contact with the body 41, and the evaporating portion 441 is rotatable relative to the body 41. The first support ring 45 and the second support ring 46 are received at both ends of the accommodating space 436.

The other end of the first heat pipe 44 is a condensation section 442 which is fixed to the display panel 2. A sealing member 47 made of a rubber material is disposed on one side of the free end 443 of the evaporation section 441 of the first heat pipe 44 in the accommodating space 436. The sealing member 47 is received in the accommodating space 436 and seals the accommodating space. 436 is adjacent one side of the free end 443 of the evaporation section 441 of the first heat pipe 44 to prevent lubricant leakage. Further, a cushion 48 is disposed between the first heat pipe 44 and the upper cover 43. The cushion pad 48 is provided with two positioning holes 481 matched with the positioning post 420, and a sixth mounting hole 489 is respectively disposed at four corners.

The second heat pipe 49 is a flat heat pipe, and one end thereof is a condensation section 491. The condensation section 491 passes through the main body 1 and passes through the receiving hole 112 of the heat conducting hinge seat 11 and is received in the second receiving groove of the heat conducting hinge 4 . In 415, the other end of the second heat pipe 49 is an evaporation section 492 which is mounted by a mounting plate 13 to be thermally connected to the heat-generating electronic component disposed in the main body 1. The bottom plate 50 is embedded in the second receiving groove 415, and the lower surface of the bottom plate 50 The 502 is flatly attached to the bottom surface 113 of the receiving groove 111 of the heat conducting hinge base 11, and the upper surface 501 of the bottom plate 50 abuts against the condensation section 491 of the second heat pipe 49.

The body 41 of the heat-conducting hub 4 is received in the receiving slot 111 of the heat-conducting hinge base 11. The flange 425 of the body 41 abuts against the top surface of the heat-conducting hinge seat 11, and the cushion 48 and the upper cover 43 are sequentially disposed on the body 41. The screw 34 (please refer to FIG. 4 together) sequentially passes through the fifth mounting hole 439 of the upper cover 43, the sixth mounting hole 489 of the cushion 48, the third mounting hole 426 of the body 41, and the first mounting hole of the heat transfer hinge 11 114, thereby fixing the upper cover 43 together with the body 41 to the main body 1, and generating a pressing force to the evaporation section 441 of the first heat pipe 44 and the condensation section 491 of the second heat pipe 49, so that the evaporation section 441 of the first heat pipe 44 is The body 41 is in good contact, and the condensation section 491 of the second heat pipe 49 is closely attached to the bottom surface 416 of the second receiving portion 414. Further, the second heat pipe 49 is welded to the bottom surface 416 of the second receiving portion 414 to strengthen the thermal contact between the second heat pipe 49 and the body 41. The cushion 48 is made of rubber or a smooth non-metallic material to buffer the force on the evaporation section 441 of the first heat pipe 44, reduce damage to the evaporation section 441 of the first heat pipe 44, and prolong its service life.

The heat generated by the heat-generating electronic components in the main body 1 is finally transferred to the display panel 2 through the second heat pipe 49, the body 41 and the first heat pipe 44, so that the heat generated by the heat-generating electronic components simultaneously utilizes the host 1 and the display panel 2 The space of the components is dissipated, and the heat dissipation efficiency is greatly improved as compared with the space dissipation using only the host 1 space. In addition, the heat-conducting hinge 4 functions as the auxiliary pivot 3, and the rotation of the first heat pipe 44 of the heat-conducting hinge 4 relative to the body 41 can assist the pivot 3 to realize the rotation of the display panel 2 relative to the main body 1, due to the heat-transfer hub 4 and the pivot The shaft 3 is symmetrically disposed at both ends of the rear side of the main body 1. When the display panel 2 is rotated relative to the main body 1, the pivot 3 and the heat transfer joint 4 are uniformly applied with respect to each other, with respect to only the pivot 3 or the heat transfer joint 4 as a rotating component. This extends the pivot 3 and the guide The service life of the thermal hub 4. Further, the first support ring 45 and the second support ring 46 are sleeved on the first heat pipe 44, and the first support ring 45 and the second support ring 46 are subjected to most of the load generated during the rotation, and the first heat pipe is relieved. The wear of the 44, the lubricant disposed in the accommodating space 436 further reduces the friction between the first heat pipe 44 and the body 41, prolonging its service life. The ring groove 452 and the sealing member 47 function to seal the lubricant in the accommodating space 436 to prevent the lubricant from leaking.

34‧‧‧ screws

41‧‧‧Ontology

44‧‧‧First heat pipe

49‧‧‧second heat pipe

422‧‧‧First mounting plate

423‧‧‧Second installation board

424‧‧‧4th mounting hole

436‧‧‧ accommodating space

Claims (9)

A heat-conducting hub includes a body, an upper cover, a first heat pipe and a second heat pipe. The upper cover is disposed on the top of the body, and the first receiving portion and the second receiving portion are respectively disposed on the body, and the first receiving portion and the second receiving portion are respectively opened The first receiving slot and the second receiving slot, the first receiving slot of the main body and the upper cover form an accommodating space, and the evaporation section of the first heat pipe is received in the accommodating space, and the two ends of the evaporation section of the first heat pipe are respectively Fixing a first support ring and a second support ring, wherein the first receiving groove is provided with a lubricant, and the lubricant is sealed between the first support ring and the second support ring, the first support ring and the second support The ring can rotate relative to the body along the evaporation section of the first heat pipe, and the condensation section of the second heat pipe is received in the second receiving groove. The heat-conducting hub according to the first aspect of the invention, wherein the first support ring and the second support ring are respectively sleeved on both ends of the evaporation section of the first heat pipe, and the apertures at both ends of the accommodation space are The first support ring and the second support ring are received at two ends of the accommodating space. The heat-conducting hub according to the first aspect of the invention, further comprising a sealing member, the sealing member being received in the accommodating space and sealing the accommodating space adjacent to one side of the free end of the evaporation section of the first heat pipe, Prevent lubricant leakage. The heat-transfer hub of claim 1, wherein a ring groove is formed on the outer circumference of the first support ring and the second support ring, and the ring groove is used for sealing the lubricant in the first receiving groove. The heat transfer hub of claim 1, further comprising a cushion located between the upper cover and the evaporation section of the first heat pipe. The heat conducting hub according to the first aspect of the invention, wherein the first receiving portion and the second receiving portion are respectively located at the top and the bottom of the body. The heat-conducting hub according to claim 1, wherein the utility model further comprises a bottom plate and a second heat The tube is flat, and the bottom plate is embedded in the second receiving groove and abuts against the second heat pipe. A portable computer, comprising a main body, a display panel and a pivot, pivotally connected between the main body and the display panel, the improvement being: further comprising the heat conduction according to any one of claims 1 to 7. a hub, a heat conducting hub is connected between the host and the display panel, and the display panel can be rotated relative to the main body by the pivot and the heat conducting hinge, and the evaporation section of the second heat pipe is thermally connected with the heat generating electronic component in the main body, and the condensation section of the first heat pipe The heat is generated on the display panel, and the heat of the heat-generating electronic component in the main body is transmitted to the heat-conducting hinge through the second heat pipe, and then transmitted from the heat-conducting hinge to the display panel through the first heat pipe. The portable computer of claim 8, wherein the two ends of the rear side of the main body form a pivot seat and a heat transfer hinge seat respectively, and the pivot and the heat transfer hinge are respectively mounted on the pivot seat and the heat transfer hinge seat. on.