CN102454688A - Hinge device and electronic device comprising same - Google Patents
Hinge device and electronic device comprising same Download PDFInfo
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- CN102454688A CN102454688A CN2010105234036A CN201010523403A CN102454688A CN 102454688 A CN102454688 A CN 102454688A CN 2010105234036 A CN2010105234036 A CN 2010105234036A CN 201010523403 A CN201010523403 A CN 201010523403A CN 102454688 A CN102454688 A CN 102454688A
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Abstract
The invention provides a hinge device which is prepared from an alloy by a metal injection molding method and has high strength, is nonmagnetic and has corrosion resistance. The alloy comprises the following components in percentage by weight: 4-32% of Mn, 16-37% of Cr, 0-14% of Ni, 0-4.5% of Si, 0.2-1% of N, 0-0.2% of C, 0-0.5% of S, 0-0.5% of P, 0-1% of Al, 0-5% of Co, 0-4% of Ti, 0-2% of Cu, 0-0.5% of V, 0-5% of W, 0-5% of Mo, 0-1% of B, 0-0.4% of O, 0-2% of Nb, 0-1% of Ta, less than 5% of total additive amount of an adding element, wherein the adding element is selected from at least one of Y, La, Ce, Hf and Zr, and the balance of the alloy of Fe.
Description
Technical field
The present invention is about a kind of pivot device, and the electronic equipment that possesses this pivot device.
Background technique
Existing action electronic device; Like notebook computer, mobile phone or PDA etc., mainly have base and display screen two-part, and between this base and screen, be provided with pivot device; But screen and base that order coincides relatively are folding; And the mode of folding can include sliding type, hinge-lid type according to the design of pivot device or have simultaneously and slide and renovate the merit able one, and the employed pivot device of flip type electronic device that wherein slides consists predominantly of: a pivot member; Its two ends are respectively equipped with chute and pivot part, and pivot member also is hubbed at this pivot part on the body of electronic equipment and is body upset relatively; And a slide plate, this slide plate is fixedly arranged on the screen of electronic equipment, and slide plate slidably is located between two chutes of substrate; By this, when operating electronic devices, after can promoting screen earlier and making its relative body slide onto a predeterminated position, make the screen angle of overturning that it is erected to make things convenient for the user to watch again.
Above-mentioned existing pivot device, its each part respectively by 304,316L or 420L series stainless steel, zinc alloy, or the noncrystalline metal of zirconium base, titanium base processes, however the part of those materials has following problems:
Zinc alloy is because intensity is low, so its made part has under the long-term use, is prone to rub each other with other part and produce wearing and tearing, causes problems such as the loosening or damage of part;
The part of stainless steel commonly used; General direct use stainless steel materials is shaped to the required shape of this part through punch process, yet is subject to original-shape and this processing method for stamping of sheet material; The moulding degrees of freedom of this part is lower; And 304, the stainless intensity of 316L is also not enough to some extent, though and the 420L stainless steel has high tenacity, it has the material behavior of strong magnetic; Its saturation flux density is higher than 200 Gausses; Far above 304, the 316 nonmagnetic stainless steels of saturation flux density about 5～10 Gausses, for avoiding can producing interference phenomenon to the electric signal of electronic component in the electronic equipment, the 420L stainless steel can't be as the material of the nonmagnetic pivot device of need;
The part that recent noncrystalline metal material is made; Though have excellent intensity, hardness number, owing to use casting, so precision is extremely low and surperficial too coarse; Must can reach the desired size of final products through a large amount of precision machining again; Yet because part hardness is too high, shortcomings such as the easy to wear or fracture of the cutter of long processing time, use are arranged when therefore carrying out precision machining, cause the production capacity of this part low and cost of production is too high.
In addition; Existing pivot device structure, for example TW patent announcement M350212 number discloses, for reaching above-mentioned the slide function of upset of the relative body of screen that makes; Be designed with respectively do for oneself independent component and pivot member and slide plate for cooperatively interacting; And this pivot member and slide plate must be locked in respectively on body and the screen with fixed block, so this pivot device part number is many and complex structure, thereby production, the higher shortcoming of assembly cost are arranged.
In sum, existing its material of pivot device, production method and structure still has the leeway of further improvement.
Summary of the invention
Because above-mentioned existing pivot device; The material that its part is selected for use is not enough to some extent on mechanical property; And the shortcoming that structure is very complicated; The present invention develops a kind of alloy and solves it according to this, utilizes the one-body molded integration and making pivot device of this alloy, can make pivot device possess favorable mechanical character, physical property, moldability and its low production cost.
For reaching the foregoing invention purpose; Technological means used in the present invention is to provide a kind of tool high tenacity and corrosion resistance and is non-magnetic pivot device; This pivot device is made via metal ejection formation method (Metal Powder Injection Molding) with a kind of alloy; The composition of this alloy calculates according to weight percentage; Comprise 4% to 32% Mn, 16% to 37% Cr, 0 to 14% Ni, 0 to 4.5% Si, 0.2% to 1% N, 0 to 0.2% C, 0 to 0.5% S, 0 to 0.5% P, 0 to 1% Al, 0 to 5% Co, 0 to 4% Ti, 0 to 2% Cu, 0 to 0.5% V, 0 to 5% W, 0 to 5% Mo, 0 to 1% B, 0 to 0.4% O, 0 to 2% Nb, 0 to 1% Ta; And total addition level is less than 5% interpolation element; This interpolation element be selected from Y, La, Ce, Hf and Zr at least one of them, and the remaining part of alloy is constituted by Fe.
Pivot device of the present invention, the weight percentage of Ni and Cr adds up to and is higher than 12% in its composition, therefore has stainless character; Its yield strength is that tensile strength is higher than 700MPa more than the 350MPa, and elongation percentage is higher than 10%; Hardness is higher than HRB90; And saturation flux density is lower than 10.0 Gausses (nonmagnetic stainless steel scope) (under the test of 5000Oe induction field), and wherein intensity nonmagnetic stainless steel and zinc alloy commonly used is high, and hardness is lower than noncrystalline metallic material; So pivot device of the present invention; Except that the good intensity of nonmagnetic stainless steel, hardness can be provided, can solve zinc alloy part shortcoming easy to wear simultaneously, and nothing but the part processed of crystal metal because of the too high and unmanageable problem of hardness.
The present invention provides a kind of pivot device in addition, and it uses aforementioned alloy, and via one-body molded the processing of metal ejection formation method, this pivot device includes:
One support is longitudinal bodies;
Two swing arms; It is longitudinal bodies and has on one hub side and hub side once; The hub side is run through and is formed with a upper pivot hole on this, and run through and is formed with a lower pivot hole at the place, hub side down, this two swing arm respectively moulding be positioned at said support lengthwise to two ends; And the last hub side of two swing arms the and down hub side is respectively from the outside projection of support, the upper pivot hole between two swing arms and the axle center of lower pivot hole and being respectively is parallel to each other.
The present invention provides an electronic equipment again, and it includes:
One pivot device uses aforementioned alloy, and via one-body molded the processing of metal ejection formation method, it has:
One support is longitudinal bodies;
Two swing arms; It is longitudinal bodies and respectively moulding be positioned at said support lengthwise to two ends; And have on one hub side and a hub side once; The hub side is run through and is formed with a upper pivot hole on this, and run through and is formed with a lower pivot hole at the place, hub side down, and the upper pivot hole between two swing arms and the axle center of lower pivot hole and being respectively is parallel to each other;
One base is concaved with a support room and two lower chambers in order to hub side under ccontaining said support and two swing arms on it, in those upper and lower rooms and be respectively equipped with the pivot that cooperates the upper and lower pivot of swing arm hole;
One screen is concaved with two upper chamber in order to hub side in ccontaining said two swing arms on it, in those upper and lower rooms and be respectively equipped with pivot and cooperate the upper and lower pivot hole that is arranged in swing arm.
From the above; Pivot device of the present invention; It is solid memder thereby simple structure, and owing to use one-body molded the processing of metal ejection formation method, its processing procedure is simple and easy fast; Assembly cost when existing pivot device can significantly reduce production costs and be installed in electronic equipment, and can provide pivot device preferable formative nature.
Description of drawings
Fig. 1 is an electronic equipment that is assembled with pivot device of the present invention, and its screen and base are the stereogram of deployed condition;
Fig. 2 is the exploded view that is assembled with an electronic equipment of pivot device of the present invention;
Fig. 3 is an electronic equipment that is assembled with pivot device of the present invention, and its screen and base are the sectional view of the state of coinciding;
Fig. 4 is an electronic equipment that is assembled with pivot device of the present invention, and its screen and base are the sectional view of deployed condition.
Description of reference numerals: 10-support; The 101-containing space; The 20-swing arm; The last hub side of 21-; The 211-upper pivot hole; Hub side under the 22-; The 221-lower pivot hole; The 222-positioning part; The 30-base; 31-support room; The 32-lower chamber; The 33-pivot; The 34-stop member; The 40-screen; 41-upper chamber; The 42-pivot.
Embodiment
The present invention provides with a kind of alloy via metal ejection formation method (Metal Injection Molding) made tool high tenacity and corrosion resistance and be non-magnetic pivot device; Below with several embodiments the composition of this alloy is described; And the characteristic of this alloy after the moulding of metal ejection formation method; Wherein the processing procedure of this metal ejection formation method is mainly this metal alloy powdered, and is mixed into injection material with multiple high molecular bond (like PP, PW, PE, SA etc.), through ejection formation, degreasing, sintering and after processing; Those processing procedures belong to known techniques, no longer detail in this:
In first embodiment of the invention; It is 9% Mn, 16.5% Cr, 9.5% Ni, 3% Si, 0.35% N that the composition of said alloy calculates according to weight percentage, reaches 0.2% C, 0.2% O, 0.03% S, 0.02% P, 1% Al, 2% Co, 1% Mo, 0.5% Zr, and all the other are constituted by Fe; The alloy of above-mentioned composition is after the moulding of metal ejection formation method; Its yield strength is about 450MPa, and tensile strength is about 720MPa, and elongation percentage is about 45%; Hardness is about HRB90, and saturation flux density is 1.43 Gausses;
In second embodiment of the invention; It is 10.2% Mn, 21% Cr, 1.2% Ni, 2% Si, 0.85% N that the composition of said alloy calculates according to weight percentage, and 0.2% C, 0.1% O, 0.03% S, 0.2% P, 0.3% Al, 0.8% Ti, 0.5% Cu, 2% W, 3% Mo, 0.7% Ta, total addition level be less than 1% Y and Zr, and all the other are constituted by Fe; The alloy of above-mentioned composition is after the moulding of metal ejection formation method; Its yield strength is about 620MPa, and tensile strength is about 790MPa, and elongation percentage is about 25%; Hardness is about HRC25, and saturation flux density is 4.51 Gausses;
In third embodiment of the invention; The composition of said alloy is less than 1% Zr, Y and La according to the Mn of weight percentage calculating 30%, 25% Cr, 3% Ni, 0.9% N, 0.2% C, 2% Ti, 0.5% Cu, 4% W, 5% Mo, 0.5% B, 1% Nb, 0.6% Ta, total addition level; All the other are constituted by Fe, and the alloy of above-mentioned composition is after the moulding of metal ejection formation method, and its yield strength is about 560MPa; Tensile strength is about 750MPa; Elongation percentage is about 38%, and hardness is about HRC22, and magnetic intensity is 2.43 Gausses;
In fourth embodiment of the invention; The composition of said alloy calculates 5% Mn, 30% Cr, 3% Ni, 1.5% Si, 0.4% N according to weight percentage, comprises 0.02% C, 0.05% S, 0.03% P, 0.5% Al, 0.5% V, 4% W, 0.8% Nb, 0.6% Ta, total addition level and is less than 1% La, Ce and Hf, and all the other are constituted by Fe; The alloy of above-mentioned composition is after the moulding of metal ejection formation method; Its yield strength is about 820MPa, and tensile strength is about 1150MPa, and elongation percentage is about 12%; Hardness is about HRC29, and magnetic intensity is 7.43 Gausses;
In fifth embodiment of the invention, the composition of said alloy calculates 32% Mn, 16% Cr, 0.7% N according to weight percentage, comprises 0.01% C, 4% Mo, 0.9% Nb, 1% Ta; All the other are constituted by Fe, and the alloy of above-mentioned composition is after the moulding of metal ejection formation method, and its yield strength is about 600MPa; Tensile strength is about 850MPa; Elongation percentage is about 22%, and hardness is about HRC25, and magnetic intensity is 3.12 Gausses.
In the existing non-magnetic pivot device, its hardness of part of processing with zinc alloy metal is about HRB30, and yield strength is merely 100MPa; And 304 or 316 stainless steel hardness are approximately between HRB55～HRB70; The hardness of the part that it is processed is about HRB55～60, and yield strength is merely about 160MPa, all is prone to abrasion and yielding destruction because of strength deficiency; And be about more than the HRC66 with noncrystalline its hardness of metal part; Thereby have processing difficulties and problem such as time-consuming, and can know pivot device of the present invention by above-mentioned each embodiment; Its hardness zinc alloy is for height and be lower than noncrystalline metal; Therefore can solve outside the zinc alloy part shortcoming easy to wear, also the part processed of crystal metal is because of the too high and unmanageable problem of hardness nothing but, and pivot device material of the present invention can provide 304 or 316 stainless steels good intensity.
In addition; Because pivot device of the present invention is made with the metal ejection formation method, therefore can the moulding complicated shape and mechanism's part of high precision, and in the part manufacture of existing pivot device; With 304 or 316 stainless steel materials through impact briquetting; Perhaps with noncrystalline metal mold moulding, the characteristic of shape mechanism parts is tieed up in the manufacturing 3 that all incomparable metal ejection formation method can be a large amount of and accurate, and the mould liquid metal injection molding of zinc alloy; Its finished product has the problem of strength deficiency, can't be used in the dirivig member of pivot device.
The present invention provides a kind of pivot device in addition; See also illustrated in figures 1 and 2; It has screen 40 in order to be installed in) and base 30) an electronic equipment make this screen 40 according to this) base 30 relatively) upset of sliding; The structure of this pivot device belongs to known techniques, in lifting an example as explanation here, only is not limited thereto the pivot device of kind of kenel.
Said pivot device uses aforementioned alloy, and through one-body molded the processing of metal ejection formation method, it includes:
One support 10 is longitudinal bodies, and in present embodiment, support 10 is a long slab body, in the one of which side and be provided with at least one containing space 101;
Two swing arms 20; It is longitudinal bodies and respectively moulding be positioned at said support 10 lengthwise to two ends, and have on one hub side 21 and hub side 22 once, last hub side 21 and time hub side 22 are respectively from support 10 outside projections; Hub side 21 is run through and is formed with a upper pivot hole 211 on this; And down run through and be formed with a lower pivot hole 2221 at 22 places, hub side, 22 places, this time hub side and be equipped with the axle center of upper pivot hole 211 and lower pivot hole 212 between 222, two swing arms 20 of a positioning part and be respectively and be parallel to each other.
Said electronic equipment; Please cooperate referring to shown in the 3rd and four figure; Its base 30 is adjacent to the rear end of base 30 on the side of screen 40; Be concaved with a support room 31 and two lower chambers 32 in order to ccontaining said support 10 and 20 times hub sides 22 of two swing arms, in each lower chamber 32, be provided with a pivot 33 and a stop member 34 is set in distance, wherein this pivot 33 can cooperate the lower pivot hole 212 that is arranged in said swing arm 20;
The screen 40 of said electronic equipment; It is on a side of base 30; Between base 30 front ends and rear end; Be concaved with two upper chamber 41 in order to hub side 21 in ccontaining two swing arms 20, in each upper chamber 41 and be provided with a pivot 42, this pivot 42 can cooperate the upper pivot hole 211 that is arranged in said swing arm 20.
The last hub side 21 of two swing arms 20 of said pivot device reaches hub side 22 down; Be arranged at respectively in the corresponding upper chamber 41 and lower chamber 32; And said pivot 42,33 is arranged in corresponding upper and lower pivot hole 211,221 respectively; Make this swing arm 20 that relatively screen 40 and base 30 are and can pivot, set containing space 101 and can supply to be provided with other parts or electronic component or the like on the pivot device support 10 respectively;
Multiple referring to shown in the 3rd and four figure, by above-mentioned technological means, when screen 40 and base 30 coincide mutually; Said support 10 is positioned at the support room 31 of base 30, and the upper and lower hub side 21,22 of said two swing arms 20 lays respectively in the corresponding upper and lower room 4132 on base 30 and the screen 40, when desire operation screen 40 slides upset; The application of force promotes the front end of screen 40; So will to drive pivot device be that fulcrum overturns with the following hub side 22 of swing arm 20 to the screen 40 of slippage, and behind the several angle to be flipped, two swing arms 20 will be butted on the limit ancient piece of jade, round, flat and with a hole in its centre of lower chamber 32; And said positioning part 222 is butted on and stop member 34; Make pivot device be the location, the last hub side 21 of swing arm 20 this moment is and erects and screen 40 central positions supports is high, the overturn purpose of screen 40 that so promptly reaching slides.
Pivot device of the present invention; It is because the one-body molded solid memder of processing compared to existing pivot device, is constructed very simple; Has nonmagnetic, anti-corrosion and suitable intensity and hardness; And use the product of metal ejection formation method manufacturing, its dimensional accuracy and surface flatness are splendid, therefore can reduce being spent follow-up accurate cost of processing and man-hour.
Claims (13)
1. pivot device; It is characterized in that; It is made via the metal ejection formation method with a kind of alloy; The composition of this alloy calculates according to weight percentage; Comprise 4% to 32% Mn, 16% to 37% Cr, 0 to 14% Ni, 0 to 4.5% Si, 0.2% to 1% N, 0 to 0.2% C, 0 to 0.5% S, 0 to 0.5% P, 0 to 1% Al, 0 to 5% Co, 0 to 4% Ti, 0 to 2% Cu, 0 to 0.5% V, 0 to 5% W, 0 to 5% Mo, 0 to 1% B, 0 to 0.4% O, 0 to 2% Nb, 0 to 1% Ta; And total addition level is less than 5% interpolation element, this interpolation element be selected from Y, La, Ce, Hf and Zr at least one of them, and the remaining part of alloy is constituted by Fe.
2. pivot device as claimed in claim 1; It is characterized in that; It is 9% Mn, 16.5% Cr, 9.5% Ni, 3% Si, 0.35% N that the composition of said alloy calculates according to weight percentage; Reach 0.2% C, 0.2% O, 0.03% S, 0.02% P, 1% Al, 2% Co, 1% Mo, 0.5% Zr, the remaining part of alloy is constituted by Fe.
3. pivot device as claimed in claim 1; It is characterized in that; It is 10.2% Mn, 21% Cr, 1.2% Ni, 2% Si, 0.85% N that the composition of said alloy calculates according to weight percentage; And 0.2% C, 0.1% O, 0.03% S, 0.2% P, 0.3% Al, 0.8% Ti, 0.5% Cu, 2% W, 3% Mo, 0.7% Ta, total addition level be less than 1% Y and Zr, and the remaining part of alloy is constituted by Fe.
4. pivot device as claimed in claim 1; It is characterized in that; The composition of said alloy is less than 1% Zr, Y and La according to the Mn of weight percentage calculating 30%, 25% Cr, 3% Ni, 0.9% N, 0.2% C, 2% Ti, 0.5% Cu, 4% W, 5% Mo, 0.5% B, 1% Nb, 0.6% Ta, total addition level, and the remaining part of alloy is constituted by Fe.
5. pivot device as claimed in claim 1; It is characterized in that; The composition of said alloy calculates 5% Mn, 30% Cr, 3% Ni, 1.5% Si, 0.4% N according to weight percentage; Comprise 0.02% C, 0.05% S, 0.03% P, 0.5% Al, 0.5% V, 4% W, 0.8% Nb, 0.6% Ta, total addition level and be less than 1% La, Ce and Hf, the remaining part of alloy is constituted by Fe.
6. pivot device as claimed in claim 1; It is characterized in that; The composition of said alloy calculates 32% Mn, 16% Cr, 0.7% N according to weight percentage, comprises 0.01% C, 4% Mo, 0.9% Nb, 1% Ta, and the remaining part of alloy is constituted by Fe.
7. pivot device, it uses like the alloy described in the claim 1 to 6 each, through one-body molded the processing of metal ejection formation method, it is characterized in that, includes:
One support is longitudinal bodies;
Two swing arms; It is longitudinal bodies and respectively moulding be positioned at said support lengthwise to two ends; And have on one hub side and a hub side once; The hub side is run through and is formed with a upper pivot hole on this, and run through and is formed with a lower pivot hole at place, this time hub side, and the upper pivot hole between two swing arms and the axle center of lower pivot hole and being respectively is parallel to each other.
8. pivot device as claimed in claim 7 is characterized in that, a positioning part is equipped with at the place, hub side under the said swing arm.
9. like claim 7 or 8 described pivot devices, it is characterized in that, be concaved with at least one containing space on the said support.
10. electronic equipment is characterized in that it includes:
One pivot device uses like the alloy described in the claim 1 to 6 each, and through one-body molded the processing of metal ejection formation method, it has:
One support is longitudinal bodies;
Two swing arms; It is longitudinal bodies and respectively moulding be positioned at said support lengthwise to two ends; And have on one hub side and a hub side once; The hub side is run through and is formed with a upper pivot hole on this, and run through and is formed with a lower pivot hole at the place, hub side down, and the upper pivot hole between two swing arms and the axle center of lower pivot hole and being respectively is parallel to each other;
One base is concaved with a support room and two lower chambers in order to hub side under ccontaining said support and two swing arms on it, in those upper and lower rooms and be respectively equipped with the pivot that cooperates the upper and lower pivot of swing arm hole;
One screen is concaved with two upper chamber in order to hub side in ccontaining said two swing arms on it, in those upper and lower rooms and be respectively equipped with pivot and cooperate the upper and lower pivot hole that is arranged in swing arm.
11. electronic equipment as claimed in claim 10 is characterized in that:
Being provided with a stop member and said pivot in the lower chamber of said base is at interval;
A positioning part is equipped with at hub side place under the swing arm of said pivot device, and when swing arm relatively during said base pivots, this positioning part can offset with said stop member, or is away from this stop member.
12. like claim 10 or 11 described electronic equipments, it is characterized in that, be concaved with at least one containing space on the said support.
13. a pivot device, made via the metal ejection formation method by a kind of alloy, it includes:
One support is longitudinal bodies;
Two swing arms; It is longitudinal bodies and respectively moulding be positioned at said support lengthwise to two ends; And have on one hub side and a hub side once; The hub side is run through and is formed with a upper pivot hole on this, and run through and is formed with a lower pivot hole at the place, hub side down, and the upper pivot hole between two swing arms and the axle center of lower pivot hole and being respectively is parallel to each other;
The composition of said alloy calculates according to weight percentage; Comprise 4% to 32% Mn, 16% to 37% Cr, 0 to 14% Ni, 0 to 4.5% Si, 0.2% to 1% N, 0 to 0.2% C, 0 to 0.5% S, 0 to 0.5% P, 0 to 1% Al, 0 to 5% Co, 0 to 4% Ti, 0 to 2% Cu, 0 to 0.5% V, 0 to 5% W, 0 to 5% Mo, 0 to 1% B, 0 to 0.4% O, 0 to 2% Nb, 0 to 1% Ta; And total addition level is less than 5% interpolation element; This interpolation element be selected from Y, La, Ce, Hf and Zr at least one of them, and the remaining part of alloy is constituted by Fe.
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| CN2010105234036A CN102454688A (en) | 2010-10-20 | 2010-10-20 | Hinge device and electronic device comprising same |
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| CN2010105234036A CN102454688A (en) | 2010-10-20 | 2010-10-20 | Hinge device and electronic device comprising same |
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| JP2010065840A (en) * | 2008-09-15 | 2010-03-25 | Fujitsu Ltd | Mobile device |
| US20100195944A1 (en) * | 2009-01-30 | 2010-08-05 | Larry John Verbowski | Vehicle suspension module |
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| JP2000273583A (en) * | 1999-03-26 | 2000-10-03 | Toshiba Corp | Iron base alloy having high thermal expansibility and high hardness, spring material using the same and part for cathode-ray tube |
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Application publication date: 20120516 |