WO2018223533A1 - 笔记本电脑用定位转轴 - Google Patents

笔记本电脑用定位转轴 Download PDF

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Publication number
WO2018223533A1
WO2018223533A1 PCT/CN2017/099230 CN2017099230W WO2018223533A1 WO 2018223533 A1 WO2018223533 A1 WO 2018223533A1 CN 2017099230 W CN2017099230 W CN 2017099230W WO 2018223533 A1 WO2018223533 A1 WO 2018223533A1
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WIPO (PCT)
Prior art keywords
annular
annular fin
sleeve
fin
groove
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PCT/CN2017/099230
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English (en)
French (fr)
Inventor
徐金根
郑吉昌
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昆山科森科技股份有限公司
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Application filed by 昆山科森科技股份有限公司 filed Critical 昆山科森科技股份有限公司
Publication of WO2018223533A1 publication Critical patent/WO2018223533A1/zh
Priority to AU2020100007A priority Critical patent/AU2020100007A4/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication

Definitions

  • the present disclosure relates to a hinge structure, for example, to a positioning spindle for a notebook computer.
  • the notebook computer is small, thin, lightweight, and easy to carry around.
  • the notebook computer is mostly covered with a cover type.
  • the notebook computer is designed to include a base composed of a main body and a keyboard, and an upper cover composed of a display screen and a cover body.
  • the upper cover is closed on the base of the notebook computer, and the upper cover must be opened up to an appropriate angle during use to facilitate operation.
  • the rotating shaft of the notebook computer is generally provided with a circular oil guiding groove on the pivot of the rotating shaft, and the rotating shaft is made of zinc alloy material.
  • the design has the following disadvantages: the notebook rotating shaft with the structure has a slow heat dissipation. Local heating will occur, and the lubricating oil in the oil tank will be easily melted. Therefore, the melting point of the lubricating oil in the oil tank is required to be high, and a circular oil guiding groove is arranged on the pivot shaft, which is disadvantageous for lubricating oil storage, so that it is lifted and When the cover of the notebook is closed, oil leakage may occur, and a circular oil guide groove may be formed on the pivot shaft to form a uniform oil film.
  • the present disclosure provides a positioning rotating shaft for a notebook computer.
  • the notebook computer has good stability and uniformity of torque and friction of the positioning shaft. After 20,000 times of turning, the range of torque and friction is controlled within 7%, thereby reducing the range.
  • the attenuation of the torsion improves the service life of the product, and it is also convenient to adjust the number of the loose fin ring and the tight fin ring according to the occasion and the product, and arrange the positional relationship to realize the torsion movement.
  • the state can be adjusted in size, which improves the versatility and use of the product, saves the production cost, and ensures the durability and durability of the polished portion of the polished rod portion and the fin ring inner wall.
  • a positioning shaft for a notebook computer comprising a rotating bracket, a stopper, a shaft core rod, a plurality of first annular fins and a plurality of second annular fins, the rotating bracket comprising a support portion, a first sleeve and a second sleeve, the first sleeve is located at a first end of the first end surface of the rotating bracket, the second sleeve is located at a middle portion of the first end surface of the rotating bracket, and the second end of the first end surface of the rotating bracket is The area between the two sleeve sleeves has a groove, the first side of the shaft core rod is a light rod portion, the second side is a non-light rod portion, and the light rod portion of the shaft core rod is embedded in the first sleeve and the second portion of the support portion In the sleeve, a first portion of the stopper is fitted to an end of the polished rod portion, and a second portion of the stopper is fitted on a groove end of the
  • Both ends of the notched groove of the annular fin are in close contact with the polished rod portion, and a gap portion is formed between the first annular fin and the side surface of the polished rod portion, and the second annular fin is tightly coupled with the polished rod portion.
  • the inner wall of the first annular fin and the second annular fin each have two recessed recesses, and the two recessed recesses are respectively located at two sides of the notch groove, and the gap of the first annular fin Connecting two recessed grooves of the first annular fin, the first annular fin and the second annular fin are alternately arranged; the shaft core rod is located between the light rod portion and the non-light rod portion
  • the area has a raised strip, a baffle is disposed between the first sleeve and the second sleeve and in a region of the bottom of the rotating bracket, the baffle corresponds to the raised strip.
  • the second sleeve is located at a middle of the first end surface of the rotating bracket near a side of the first sleeve.
  • At least two first through holes are formed in the support portion of the rotating bracket.
  • the non-light rod side surface of the shaft core rod is symmetrically disposed with a first planar groove and a second planar groove.
  • At least two second through holes are defined between the first planar groove and the second planar groove.
  • the inner diameter of the first sleeve and the second sleeve is larger than the outer diameter of the polished rod portion of the shaft rod.
  • a second annular fin is disposed between the adjacent first annular fins, and adjacent ones are adjacent to each other.
  • One first annular fin is disposed between the second annular fins.
  • the two recessed grooves and the notch grooves are equally spaced in the circumferential direction.
  • the positioning shaft of the notebook computer provided by the present disclosure has good stability and uniformity of torque and friction. After 20,000 times of turning, the range of torque and friction is controlled within 7%, which can reduce the attenuation of the torque and improve the product.
  • the service life is also convenient to adjust the number of the first annular fins and the second annular fins according to different use occasions and products, and to arrange the positional relationship, thereby realizing the dynamic adjustable size of the torsion, improving the versatility and use of the product.
  • the first annular fin and the second annular fin both have a notch groove, which improves the elasticity of the first annular fin and the second annular fin, which is beneficial to Maintaining the clamping force to the polished rod portion more permanently and constantly;
  • the inner wall of the first annular fin and the second annular fin each have two recessed light rod portions, and the two recessed recesses are respectively located in the notch groove
  • the side is provided for storing lubricating oil, and is also convenient for collecting the lubricating oil of the wall lubricating surface when rotating, ensuring the lubrication continuity and durability of the polished rod portion and the inner wall of the fin ring, and the gap portion of the first annular fin is connected to the first annular fin 2 Depression groove, but also conducive to the uniformity of the lubricant distribution, we can ensure a constant torque and longer product life.
  • FIG. 1 is a schematic structural view of a positioning rotating shaft for a notebook computer according to the embodiment
  • Figure 2 is a schematic exploded view of Figure 1;
  • FIG. 3 is a partial schematic view of a positioning shaft for a notebook computer according to the embodiment.
  • Figure 4 is a partial structural view of Figure 3;
  • Figure 5 is a schematic cross-sectional view showing a loose fin ring and a shaft core rod in the embodiment
  • FIG. 6 is a schematic cross-sectional view of a tight fin ring and a shaft core rod in the present embodiment.
  • a positioning rotating shaft for a notebook computer comprising a rotating bracket 1, a blocking block 2, a shaft core rod 3, a plurality of loose fin rings 4 and a plurality of tight fin rings 5, the rotating bracket 1 comprising a supporting portion 6, first a sleeve 7 and a second sleeve 8, the first sleeve 7 is located at one end of the lower end surface of the rotating bracket 1, the second sleeve 8 is located at a middle portion of the lower end surface of the rotating bracket 1, and the lower end surface of the rotating bracket 1 is located A region between the other end and the second sleeve 8 is provided with a circular groove 9 on one side of which is a polished rod portion 31 and the other side is a non-light rod portion 32.
  • the polished rod of the shaft core rod 3 The portion 31 is embedded in the first sleeve 7 and the second sleeve 8 of the support portion 6, the lower portion of the stopper 2 is fitted to the end of the polished rod portion 31, and the upper portion of the stopper 2 is fitted to the meandering groove of the rotary bracket 1. 9 ends.
  • the loose fin ring 4 is a first annular fin
  • the tight fin ring 5 is a second annular fin
  • the meandering groove 9 is a groove.
  • the lower part and the upper part of the stopper are respectively set on the end of the polished rod portion and the end of the circular groove of the rotating bracket, which can prevent the loose fin ring and the tight fin ring from being loosened in the axial direction.
  • the loose fin ring 4 and the tight fin ring 5 have an outer convex portion 15, and the convex portion 15 is embedded in the meandering groove 9 of the rotating bracket 1, and the loose fin ring 4 and the tight fin ring 5 are both A notch groove 10 is opened.
  • the meandering groove 9 matches the outer convex portion 15. The provision of the notch groove improves the elasticity of the loose fin ring and the tight fin ring, and is advantageous for maintaining the clamping force to the polished rod portion more permanently and constantly.
  • the loose fin ring 4 and the tight fin ring 5 are fitted on the polished rod portion 31 of the shaft core rod 3, and a gap is left between the loose fin ring 4 and the polished rod portion 31, and the notch groove of the loose fin ring 4 is provided.
  • the two ends of the 10 are tightly engaged with the polished rod portion 31, and a gap portion 11 is formed between the loose fin ring 4 and the side surface of the polished rod portion 31.
  • the tight fin ring 5 is tightly coupled with the polished rod portion 31.
  • the inner wall of the ring 4 and the tight fin ring 5 respectively have two recessed recesses 18, and two recessed recesses 18 are respectively located at two sides of the notch slot 10, and the gap portion 11 of the loose fin ring 4 communicates with the fins
  • the two recessed grooves 18 of the ring 4 are alternately arranged with the loose fin ring 4 and the tight fin ring 5.
  • the structural design of the loose fin ring and the tight fin ring set on the polished rod portion of the shaft core rod eliminates the separate opening of the oil groove, and realizes that the storage oil is directly located between the polished rod portion of the shaft core rod and the inner wall of the fin ring, thereby improving
  • the lubricity of the polished rod portion and the inner wall of the fin ring also causes the contact surface to simultaneously and completely infiltrate the oil.
  • the two ends of the notch groove of the loose fin ring are in tight contact with the polished rod portion, and the tight fin ring on both sides of the loose fin ring is tightly coupled with the polished rod portion, and
  • the formation of a closed oil storage cavity reduces the spillage of oil in the sealed oil storage chamber, ensuring lubrication continuity and stability, and prolonging the service life.
  • the shaft core rod 3 is located at an intermediate portion between the light rod portion 31 and the non-light rod portion 32, and has a protruding strip 16 disposed between the first sleeve 7 and the second sleeve 8 and at
  • the baffle 17 corresponds to the raised strip 16 in the area of the bottom of the rotating bracket 1.
  • the baffle is placed in the bottom area of the rotating bracket, which can limit the range of the flip angle of the base and the screen, avoiding hard damage to the notebook circuit, keeping the flip angle in a safe angle range, and prolonging the reliability and service life of the product.
  • the second sleeve 8 is located on the side of the lower end surface of the rotating bracket 1 near the first sleeve 7 side.
  • At least two first through holes 12 are formed in the support portion 6 of the rotating bracket 1 described above.
  • the side surface of the non-light rod portion 32 of the shaft core rod 3 is symmetrically provided with an upper flat groove 131 and a lower flat groove 132.
  • a positioning rotating shaft for a notebook computer comprising a rotating bracket 1, a blocking block 2, a shaft core rod 3, a plurality of loose fin rings 4 and a plurality of tight fin rings 5, the rotating bracket 1 comprising a supporting portion 6, first a sleeve 7 and a second sleeve 8, the first sleeve 7 is located at one end of the lower end surface of the rotating bracket 1, the second sleeve 8 is located at a middle portion of the lower end surface of the rotating bracket 1, and the lower end surface of the rotating bracket 1 is located A region between the other end and the second sleeve 8 is provided with a circular groove 9 on one side of which is a polished rod portion 31 and the other side is a non-light rod portion 32.
  • the polished rod of the shaft core rod 3 The portion 31 is embedded in the first sleeve 7 and the second sleeve 8 of the support portion 6, the lower portion of the stopper 2 is fitted to the end of the polished rod portion 31, and the upper portion of the stopper 2 is fitted to the meandering groove of the rotary bracket 1.
  • the loose fin ring 4 and the tight fin ring 5 have an outer convex portion 15, and the convex portion 15 is embedded in the meandering groove 9 of the rotating bracket 1, the loose fin ring 4 and the tight fin
  • Each of the rings 5 has a notch groove 10, and the loose fin ring 4 and the tight fin ring 5 are fitted on the polished rod portion 31 of the shaft core rod 3, and a gap is left between the loose fin ring 4 and the polished rod portion 31.
  • Loose fin The two ends of the notch groove 10 are in tight contact with the polished rod portion 31, and a gap portion 11 is formed between the loose fin ring 4 and the side surface of the polished rod portion 31.
  • the tight fin ring 5 is tightly coupled with the polished rod portion 31.
  • the inner surface of the loose fin ring 4 and the tight fin ring 5 has two recessed recesses 18, and two recessed recesses 18 are respectively located at two sides of the notch slot 10, and the gap portion of the loose fin ring 4 11 is connected to the two indentation grooves 18 of the loose fin ring 4, the pine fin ring 4 and the tight fin ring 5 are alternately arranged; the shaft core rod 3 is located between the light rod portion 31 and the non-light rod portion 32.
  • the intermediate portion has a raised strip 16 , and a baffle 17 is disposed between the first sleeve 7 and the second sleeve 8 and is rotating In the area of the bottom of the bracket 1, the baffle 17 corresponds to the raised strip 16.
  • At least two second through holes 14 are defined between the upper planar groove 131 and the lower planar groove 132, so that surface contact with the base is achieved, and the fixing strength and stability are higher.
  • the inner diameters of the first sleeve 7 and the second sleeve 8 are larger than the outer diameter of the polished rod portion 31 of the shaft rod 3.
  • a tight fin ring 5 is disposed between the adjacent loose fin rings 4, and a loose fin ring 4 is disposed between the adjacent tight fin rings 5.
  • the two recessed grooves 18 and the notch grooves 10 are equally spaced in the circumferential direction.
  • the positioning shaft of the notebook computer provided by the embodiment has good stability and uniformity of torque and friction. After 20,000 times of turning, the range of torque and friction is controlled within 7%, which reduces the attenuation of the torque and improves the product.
  • the service life is also convenient to adjust the number of loose fin rings and tight fin rings according to different use occasions and products, and to arrange positional relationship, to realize dynamic adjustable size of torsion, and to improve product versatility and various occasions of use. Sex, saving the cost of production.
  • Both the fin fin ring and the inner surface of the tight fin ring have two recessed grooved light rod portions, and two recessed recesses are respectively located on both sides of the notch groove for storing lubricating oil, and also for lubricating the collecting wall lubricating surface when rotating.
  • the oil ensures the lubrication and durability of the polished rod and the inner wall of the fin ring. Moreover, the gap portion of the loose fin ring communicates with the two recessed grooves of the loose fin ring, which also contributes to the uniformity of the distribution of the lubricating oil, thereby ensuring constant torque and prolonging the service life of the product.
  • the positioning shaft of the notebook computer provided by the present disclosure has good stability and uniformity of torque and friction. After 20,000 times of turning, the range of torque and friction is controlled within 7%, thereby reducing the attenuation of the torque and improving the product.
  • the service life is also convenient to adjust the number of loose fin rings and tight fin rings according to different use occasions and products, and to arrange positional relationship, to realize dynamic adjustable size of torsion, and to improve product versatility and various occasions of use.
  • Sexuality saves the cost of production and also ensures the continuity and durability of the lubrication of the polished rod and the inner wall of the fin ring.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

一种笔记本电脑用定位转轴，包括旋转支架（1）、挡块（2）、轴芯杆（3）、多个第一环状鳍片（4）和多个第二环状鳍片（5），其中，旋转支架（1）包括支撑部（6）、第一轴套（7）和第二轴套（8），第一轴套（7）位于旋转支架（1）第一端面的第一端，第二轴套（8）位于旋转支架（1）第一端面的中部，旋转支架（1）第一端面的第二端与第二轴套之间的区域开有一凹槽（9），第一环状鳍片（4）和第二环状鳍片（5）均开有一缺口槽（10），第一环状鳍片（4）和第二环状鳍片（5）套装于轴芯杆（3）的光杆部（31）上且交替排列，第一环状鳍片（4）与光杆部（31）之间留有间隙且第一环状鳍片（4）末端与光杆部（31）紧配合接触，第一环状鳍片（4）和第二环状鳍片（5）内壁均具有2个内陷凹槽（18），2个内陷凹槽（18）分别位于缺口槽（10）的两侧，第一环状鳍片（4）的间隙部连通第一环状鳍片（4）的2个内陷凹槽（18）。这种结构的定位转轴扭力和摩擦力稳定且均匀。

Description

笔记本电脑用定位转轴 技术领域
本公开涉及转轴结构，例如涉及一种笔记本电脑用定位转轴。
背景技术
随着科技的发展，电子产品不断的出现，给人们的生活带来巨大的改变，特别是电脑的使用改变了人们的生活方式，加快了人们的生活节奏。近二十年来，随着材料科学的发展和体积更小的集成芯片出现，电脑已衍变成一种体积小，厚度薄，重量轻且易于随身携带的笔记本电脑。而笔记本电脑均以掀盖式居多，为符合薄、小与重量轻等设计的考虑，笔记本电脑设计成包括主机本体和键盘构成的底座以及显示屏和盖体构成的上盖两部分。而笔记本电脑在不使用或用毕状态时，上盖盖合在笔记本电脑的底座上，在使用时须将上盖向上掀开至适当角度，以便于操作使用。
相关技术中，笔记本电脑转轴一般是在转轴的枢轴上直接设有环形导油凹槽，同时转轴采用锌合金材料，这样的设计存在以下缺点：采用此结构的笔记本电脑转轴，散热较慢，会出现局部发热现象，并导致油槽中的润滑油容易熔化，这样对油槽中的润滑油熔点要求较高，在枢轴上设有环形导油凹槽，不利于润滑油储存，这样在掀起和关闭笔记本电脑上盖时，可能导致漏油情况出现，同时在枢轴上设有环形导油凹槽也不易形成均匀的油膜。
发明内容
本公开提供一种笔记本电脑用定位转轴，该笔记本电脑用定位转轴扭力和摩擦力稳定性和均匀性好，2万次的翻转后，扭力和摩擦力浮动范围控制在7％以内，从而减少了扭力的衰减，提高了产品的使用寿命，也方便根据不用场合和产品，调整松鳍片环和紧鳍片环数目，以及排列位置关系，实现对扭力地动 态可调节大小，提高了产品的通用性和使用场合，节约了生产的成本，也保证光杆部与鳍片环内壁润滑持续性和持久性。
一种笔记本电脑用定位转轴，包括旋转支架、挡块、轴芯杆、多个第一环状鳍片和多个第二环状鳍片，所述旋转支架包括支撑部、第一轴套和第二轴套，所述第一轴套位于旋转支架第一端面的第一端，所述第二轴套位于旋转支架第一端面的中部，所述旋转支架第一端面的第二端与第二轴套之间的区域开有一凹槽，所述轴芯杆的第一侧为光杆部，第二侧为非光杆部，轴芯杆的光杆部嵌入支撑部的第一轴套和第二轴套内，所述挡块的第一部套装于光杆部末端，以及所述挡块的第二部套装于旋转支架的凹槽末端上，所述第一环状鳍片和第二环状鳍片具有一外凸部，此外凸部嵌入旋转支架的凹槽内，所述第一环状鳍片和第二环状鳍片均开有一缺口槽，所述第一环状鳍片和第二环状鳍片套装于轴芯杆的光杆部上，所述第一环状鳍片与光杆部之间留有间隙且第一环状鳍片的缺口槽)的两端与光杆部紧配合接触，第一环状鳍片与光杆部侧表面之间有形成间隙部，所述第二环状鳍片与光杆部紧配合连接，所述第一环状鳍片和第二环状鳍片内壁均具有2个内陷凹槽，2个内陷凹槽分别位于缺口槽的两侧，所述第一环状鳍片的间隙部连通第一环状鳍片的2个内陷凹槽，所述第一环状鳍片和第二环状鳍片交替排列；所述轴芯杆位于光杆部和非光杆部之间的中间区域具有一凸起条，一挡板设置于所述第一轴套和第二轴套之间且在旋转支架底部的区域，挡板与凸起条对应。
可选地，所述第二轴套位于旋转支架第一端面的中部靠近第一轴套一侧。
可选地，所述旋转支架的支撑部上开有至少2个第一通孔。
可选地，所述轴芯杆的非光杆部侧表面对称设置有第一平面槽和第二平面槽。
可选地，所述第一平面槽和第二平面槽之间开有至少2个第二通孔。
可选地，所述第一轴套和第二轴套的内径尺寸大于轴芯杆的光杆部外径尺寸。
可选地，相邻所述第一环状鳍片之间设置有1个第二环状鳍片，相邻的所 述第二环状鳍片之间设置有1个第一环状鳍片。
可选地，所述2个内陷凹槽和缺口槽沿周向等间隔分布。
本公开提供的笔记本电脑用定位转轴，扭力和摩擦力稳定性和均匀性好，2万次的翻转后，扭力和摩擦力浮动范围控制在7％以内，可以减少扭力的衰减，提高了产品的使用寿命，也方便根据不同使用场合和产品，调整第一环状鳍片和第二环状鳍片数目，以及排列位置关系，实现对扭力地动态可调节大小，提高了产品的通用性和使用场合的多样性，节约了生产的成本，第一环状鳍片和第二环状鳍片均开有一缺口槽，提高了第一环状鳍片和第二环状鳍片的弹性，有利于更持久恒定地保持对光杆部的夹持力；第一环状鳍片和第二环状鳍片内壁均具有2个内陷凹槽光杆部，2个内陷凹槽分别位于缺口槽的两侧，供存储润滑油，也便于转动时收集壁润滑表面的润滑油，保证光杆部与鳍片环内壁润滑持续性和持久性，第一环状鳍片的间隙部连通第一环状鳍片的2个内陷凹槽，也有利于润滑油分布的均匀性，可以保证扭力恒定和延长产品使用寿命。
附图说明
附图1为本实施例笔记本电脑用定位转轴结构示意图；
附图2为附图1的分解结构示意图；
附图3为本实施例笔记本电脑用定位转轴的局部示意图；
附图4为附图3的局部结构示意图；
附图5为本实施例中松鳍片环和轴芯杆剖面示意图；
附图6为本实施例中紧鳍片环和轴芯杆剖面示意图。
以上附图中：1、旋转支架；2、挡块；3、轴芯杆；31、光杆部；32、非光杆部；4、松鳍片环；5、紧鳍片环；6、支撑部；7、第一轴套；8、第二轴套；9、鸠形凹槽；10、缺口槽；11、间隙部；12、第一通孔；131、上平面槽；132、下平面槽；14、第二通孔；15、外凸部；16、凸起条；17、挡板；18、内陷凹槽。
具体实施方式
下面结合附图及实施例对本公开的技术方案进行描述。
一种笔记本电脑用定位转轴，包括旋转支架1、挡块2、轴芯杆3、多个松鳍片环4和多个紧鳍片环5，所述旋转支架1包括支撑部6、第一轴套7和第二轴套8，所述第一轴套7位于旋转支架1下端面的一端，所述第二轴套8位于旋转支架1下端面的中部，所述旋转支架1下端面位于其另一端与第二轴套8之间的区域开有一鸠形凹槽9，所述轴芯杆3一侧为光杆部31，另一侧为非光杆部32，此轴芯杆3的光杆部31嵌入支撑部6的第一轴套7和第二轴套8内，所述挡块2的下部套装于光杆部31末端，以及挡块2的上部套装于旋转支架1的鸠形凹槽9末端。其中，松鳍片环4即为第一环状鳍片，紧鳍片环5即为第二环状鳍片，鸠形凹槽9即为凹槽。
其中，挡块的下部和上部分别套装于光杆部末端和旋转支架的鸠形凹槽末端上，可以防止松鳍片环和紧鳍片环沿轴向上松脱。
所述松鳍片环4和紧鳍片环5具有一外凸部15，此外凸部15嵌入旋转支架1的鸠形凹槽9内，所述松鳍片环4和紧鳍片环5均开有一缺口槽10。鸠形凹槽9与外凸部15相匹配。缺口槽的设置，提高了松鳍片环和紧鳍片环的弹性，有利于更持久恒定地保持对光杆部的夹持力。
所述松鳍片环4和紧鳍片环5套装于轴芯杆3的光杆部31上，所述松鳍片环4与光杆部31之间留有间隙且松鳍片环4的缺口槽10的两端与光杆部31紧配合接触，松鳍片环4与光杆部31侧表面之间形成有间隙部11，所述紧鳍片环5与光杆部31紧配合连接，所述松鳍片环4和紧鳍片环5内壁均具有2个内陷凹槽18，2个内陷凹槽18分别位于缺口槽10的两侧，所述松鳍片环4的间隙部11连通松鳍片环4的2个内陷凹槽18，所述松鳍片环4和紧鳍片环5交替排列。上述松鳍片环和紧鳍片环套装于轴芯杆的光杆部的结构设计，省去了单独开设油槽，实现了存储油直接位于轴芯杆的光杆部与鳍片环内壁之间，提高了光杆部与鳍片环内壁润滑性，也使得接触面同时且全部有油浸润。而且，松鳍片环的缺口槽的两端与光杆部紧配合接触且位于松鳍片环两侧的紧鳍片环与光杆部紧配合连接，可以 形成一个密闭的储油腔体，减少了位于此密闭的储油腔体内油的外溢，保证了润滑持续性和稳定性，延长了使用寿命。
所述轴芯杆3位于光杆部31和非光杆部32之间的中间区域具有一凸起条16，一挡板17设置于所述第一轴套7和第二轴套8之间且在旋转支架1底部的区域，挡板17与凸起条16对应。挡板设置在旋转支架的底部区域，可以对底座和屏幕的翻转角度范围进行限定，避免放置对笔记本电脑的线路产生硬损伤，保持翻转在安全角度范围，延长了产品的可靠性和使用寿命。
上述第二轴套8位于旋转支架1下端面的中部靠近第一轴套7一侧。
上述旋转支架1的支撑部6上开有至少2个第一通孔12。
上述轴芯杆3的非光杆部32侧表面对称设置有上平面槽131和下平面槽132。
一种笔记本电脑用定位转轴，包括旋转支架1、挡块2、轴芯杆3、多个松鳍片环4和多个紧鳍片环5，所述旋转支架1包括支撑部6、第一轴套7和第二轴套8，所述第一轴套7位于旋转支架1下端面的一端，所述第二轴套8位于旋转支架1下端面的中部，所述旋转支架1下端面位于其另一端与第二轴套8之间的区域开有一鸠形凹槽9，所述轴芯杆3一侧为光杆部31，另一侧为非光杆部32，此轴芯杆3的光杆部31嵌入支撑部6的第一轴套7和第二轴套8内，所述挡块2的下部套装于光杆部31末端，以及挡块2的上部套装于旋转支架1的鸠形凹槽9末端，所述松鳍片环4和紧鳍片环5具有一外凸部15，此外凸部15嵌入旋转支架1的鸠形凹槽9内，所述松鳍片环4和紧鳍片环5均开有一缺口槽10，所述松鳍片环4和紧鳍片环5套装于轴芯杆3的光杆部31上，所述松鳍片环4与光杆部31之间留有间隙且松鳍片环4的缺口槽10的两端与光杆部31紧配合接触，松鳍片环4与光杆部31侧表面之间形成有间隙部11，所述紧鳍片环5与光杆部31紧配合连接，所述松鳍片环4和紧鳍片环5内壁均具有2个内陷凹槽18，2个内陷凹槽18分别位于缺口槽10的两侧，所述松鳍片环4的间隙部11连通松鳍片环4的2个内陷凹槽18，所述松鳍片环4和紧鳍片环5交替排列；所述轴芯杆3位于光杆部31和非光杆部32之间的中间区域具有一凸起条16，一挡板17设置于所述第一轴套7和第二轴套8之间且在旋转 支架1底部的区域，挡板17与凸起条16对应。
上述上平面槽131和下平面槽132之间开有至少2个第二通孔14，实现了与底座的面接触，固定强度和稳度更高。
上述第一轴套7和第二轴套8的内径尺寸大于轴芯杆3的光杆部31外径尺寸。
相邻所述松鳍片环4之间设置有1个紧鳍片环5，相邻的所述紧鳍片环5之间设置有1个松鳍片环4。
上述2个内陷凹槽18和缺口槽10沿周向等间隔分布。
本实施例提供的笔记本电脑用定位转轴，扭力和摩擦力稳定性和均匀性好，2万次的翻转后，扭力和摩擦力浮动范围控制在7％以内，减少了扭力的衰减，提高了产品的使用寿命，也方便根据不同使用场合和产品，调整松鳍片环和紧鳍片环数目，以及排列位置关系，实现对扭力地动态可调节大小，提高了产品的通用性和使用场合的多样性，节约了生产的成本。松鳍片环和紧鳍片环内壁均具有2个内陷凹槽光杆部，2个内陷凹槽分别位于缺口槽的两侧，供存储润滑油，也便于转动时收集壁润滑表面的润滑油，保证光杆部与鳍片环内壁润滑持续性和持久性。而且，松鳍片环的间隙部连通松鳍片环的2个内陷凹槽，也有利于润滑油分布的均匀性，从而保证扭力恒定和延长产品使用寿命。
工业实用性
本公开提供的笔记本电脑用定位转轴，扭力和摩擦力稳定性和均匀性好，2万次的翻转后，扭力和摩擦力浮动范围控制在7％以内，从而减少了扭力的衰减，提高了产品的使用寿命，也方便根据不同使用场合和产品，调整松鳍片环和紧鳍片环数目，以及排列位置关系，实现对扭力地动态可调节大小，提高了产品的通用性和使用场合的多样性，节约了生产的成本，也保证光杆部与鳍片环内壁润滑持续性和持久性。

Claims (8)

  1. 一种笔记本电脑用定位转轴，包括旋转支架(1)、挡块(2)、轴芯杆(3)、多个第一环状鳍片(4)和多个第二环状鳍片(5)，所述旋转支架(1)包括支撑部(6)、第一轴套(7)和第二轴套(8)，所述第一轴套(7)位于旋转支架(1)第一端面的第一端，所述第二轴套(8)位于旋转支架(1)第一端面的中部，所述旋转支架(1)第一端面的第二端与第二轴套(8)之间的区域开有一凹槽(9)，所述轴芯杆(3)的第一侧为光杆部(31)，第二侧为非光杆部(32)，轴芯杆(3)的光杆部(31)嵌入支撑部(6)的第一轴套(7)和第二轴套(8)内，所述挡块(2)的第一部套装于光杆部(31)末端，以及所述挡块(2)的第二部套装于旋转支架(1)的凹槽(9)末端，所述第一环状鳍片(4)和第二环状鳍片(5)具有一外凸部(15)，外凸部(15)嵌入旋转支架(1)的凹槽(9)内，所述第一环状鳍片(4)和第二环状鳍片(5)均开有一缺口槽(10)，所述第一环状鳍片(4)和第二环状鳍片(5)套装于轴芯杆(3)的光杆部(31)上，所述第一环状鳍片(4)与光杆部(31)之间留有间隙且第一环状鳍片(4)的缺口槽(10)的两端与光杆部(31)紧配合接触，第一环状鳍片(4)与光杆部(31)侧表面之间形成有间隙部(11)，所述第二环状鳍片(5)与光杆部(31)紧配合连接，所述第一环状鳍片(4)和第二环状鳍片(5)内壁均具有2个内陷凹槽(18)，2个内陷凹槽(18)分别位于缺口槽(10)的两侧，所述第一环状鳍片(4)的间隙部(11)连通第一环状鳍片(4)的2个内陷凹槽(18)，所述第一环状鳍片(4)和第二环状鳍片(5)交替排列；所述轴芯杆(3)位于光杆部(31)和非光杆部(32)之间的中间区域具有一凸起条(16)，一挡板(17)设置于所述第一轴套(7)和第二轴套(8)之间且在旋转支架(1)底部的区域，挡板(17)与凸起条(16)对应。
  2. 根据权利要求1所述的笔记本电脑用定位转轴，其中，所述第二轴套(8) 位于旋转支架(1)第一端面的中部靠近第一轴套(7)一侧。
  3. 根据权利要求1所述的笔记本电脑用定位转轴，其中，所述旋转支架(1)的支撑部(6)上开有至少2个第一通孔(12)。
  4. 根据权利要求1所述的笔记本电脑用定位转轴，其中，所述轴芯杆(3)的非光杆部(32)侧表面对称设置有第一平面槽(131)和第二平面槽(132)。
  5. 根据权利要求1所述的笔记本电脑用定位转轴，其中，所述第一平面槽(131)和第二平面槽(132)之间开有至少2个第二通孔(14)。
  6. 根据权利要求1所述的笔记本电脑用定位转轴，其中，所述第一轴套(7)和第二轴套(8)的内径尺寸大于轴芯杆(3)的光杆部(31)外径尺寸。
  7. 根据权利要求1所述的笔记本电脑用定位转轴，其中，相邻所述第一环状鳍片(4)之间设置有1个第二环状鳍片(5)，相邻的所述第二环状鳍片(5)之间设置有1个第一环状鳍片(4)。
  8. 根据权利要求1所述的笔记本电脑用定位转轴，其中，所述2个内陷凹槽(18)和缺口槽(10)沿周向等间隔分布。
PCT/CN2017/099230 2017-06-07 2017-08-28 笔记本电脑用定位转轴 WO2018223533A1 (zh)

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