WO2018090777A1 - 一种笼式双曲线弹簧结构及插座 - Google Patents

一种笼式双曲线弹簧结构及插座 Download PDF

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WO2018090777A1
WO2018090777A1 PCT/CN2017/106657 CN2017106657W WO2018090777A1 WO 2018090777 A1 WO2018090777 A1 WO 2018090777A1 CN 2017106657 W CN2017106657 W CN 2017106657W WO 2018090777 A1 WO2018090777 A1 WO 2018090777A1
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Prior art keywords
spring
hyperbolic
cage
spring structure
oblique
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PCT/CN2017/106657
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English (en)
French (fr)
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冯纪兵
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Individual
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Priority to EP17872751.7A priority Critical patent/EP3544123B1/en
Priority to JP2019525855A priority patent/JP6986768B2/ja
Publication of WO2018090777A1 publication Critical patent/WO2018090777A1/zh
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/025—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant characterised by having a particular shape
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/045—Canted-coil springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/187—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/58—Contacts spaced along longitudinal axis of engagement
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/12—Attachments or mountings
    • F16F1/128—Attachments or mountings with motion-limiting means, e.g. with a full-length guide element or ball joint connections; with protective outer cover
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2224/00—Materials; Material properties
    • F16F2224/02—Materials; Material properties solids
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2226/00—Manufacturing; Treatments
    • F16F2226/04—Assembly or fixing methods; methods to form or fashion parts
    • F16F2226/048—Welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2101/00—One pole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Definitions

  • the present invention relates to the field of socket technology, and in particular, to a cage hyperbolic spring structure and a socket.
  • the product has higher requirements on the jack, for example, a lower insertion force to meet people's daily frequent charging and unplugging requirements; lower Contact resistance to reduce the temperature rise caused by large currents.
  • the existing electrical connector contacts have a single-leaf double-curved double-spring spring jack, and the single-leaf rotary hyperboloid wire spring jack is uniformly enveloped by a set of elastic wires arranged in a single-leaf double-curved structure.
  • the surface of the pin inserted therein belongs to a multi-wire envelope contact, and the jack contact member adopting the wire spring structure is composed of an inner sleeve, a jacket, a rear sleeve and an elastic metal wire, and the inner sleeve is coaxially mounted.
  • the socket method has large contact resistance and poor tensile strength.
  • the front and rear sleeves are easily detached from the pressure point by the tensile force, resulting in connection failures and accidents.
  • the structure is complicated, the number of combined parts is large, and the volume cannot be further reduced, which is not conducive to miniaturization. Intensive development; 3, complex processing technology, high precision requirements, resulting in low product qualification rate, cost increase; 4, elastic wire in the limited space can not be very thick, making each wire difficult to withstand the impact of large current 5, the use of elastic wire in the process of broken wire can not be avoided; 6, the insertion force is large, because the copper wire is fixed at the two ends of the thin-walled tube, can not move to cause a large insertion force.
  • Embodiments of the present invention provide a cage type hyperbolic spring structure and a socket to ensure high current
  • the stable contact under the condition improves the service life of the product, and the structure is simple, which is advantageous for miniaturization.
  • a cage hyperbolic spring structure for use in a jack terminal, the cage hyperbolic spring structure comprising a plurality of copper hyperbolic columnar oblique springs and a machined body, the plurality of copper
  • the hyperbolic curved oblique spring is wound into a closed cylindrical annular structure by laser spot welding, the machined body is a circular tubular shape, and the cylindrical annular structure is inserted into the machined body and closely attached to the machine The body is machined, and the machined body end is provided with a pressing structure for pressing the cylindrical ring structure and the machined body.
  • the cylindrical annular structure is internally inserted with a thin-walled copper sheet for supporting the hyperbolic columnar oblique spring, and the thin-walled copper sheet may have a thickness of 0.2-10 mm.
  • the spring lines at the cylindrical ends of the hyperbolic columnar oblique spring form an angle of 0 to 90 degrees in the radial direction.
  • the inner-circle spring of the hyperbolic column-shaped oblique spring and the outer ring spring are at an angle of 0 to 20 degrees with the axial direction.
  • the hyperbolic cylindrical oblique spring has an inner ring spring, and the outer ring spring is parallel to the axial direction.
  • the middle and outer ring springs of the hyperbolic columnar oblique spring are parallel to the axial direction, and the inner ring spring has an angle of 0 to 20 degrees with the axial direction.
  • each of the spring copper wires of the hyperbolic columnar oblique spring has a diameter of 0.05 to 10 mm.
  • the pressing structure is a beveled riveting or an elastic C-ring.
  • the machined body has a wall thickness of 0.5-5 mm.
  • a socket including at least one jack, the jack being equipped with a cage hyperbolic spring structure, the cage hyperbolic spring structure being as described in any of the first aspects Cage hyperbolic spring structure.
  • the deformation caused by the radial compression of the male terminal when inserted into the insertion hole comes from the combined action of the elastic deformation in the radial direction and the normal direction, the positive pressure of the male and female terminals during the insertion process is ensured. It can ensure stable contact under high current conditions, and each copper wire can be elastically deformed instead of plastically deformed during compression, which improves the service life of the product and thus prolongs The time when the spring is declining.
  • the hyperbolic spring has a diameter smaller than the diameter of the both end portions due to the inclination thereof, and forms an envelope structure when the male terminal is inserted, thereby forming a large amount on each copper wire. The contact point allows the structure to pass very large currents without high contact impedance.
  • the hyperbolic spring structures can overlap each other during the compression process, so that the space for elastic deformation of the spring can be reduced, thereby ensuring a small volume.
  • FIG. 1 is a schematic view showing an embodiment of a hyperbolic columnar oblique spring in an embodiment of the present invention
  • FIG. 2 is a schematic view showing another embodiment of a hyperbolic columnar oblique spring in an embodiment of the present invention
  • FIG. 3 is a schematic view showing an embodiment of a cylindrical annular structure formed by a hyperbolic columnar oblique spring in an embodiment of the present invention
  • FIG. 4 is a schematic view showing another embodiment of a cylindrical ring structure formed by a hyperbolic columnar oblique spring in an embodiment of the present invention
  • FIG. 5 is a schematic view showing another embodiment of a cylindrical ring structure formed by a hyperbolic columnar oblique spring in an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a structural embodiment of a machined body according to an embodiment of the present invention.
  • Fig. 7 is a schematic view showing a structural embodiment of an elastic C-ring in the embodiment of the present invention.
  • a cage hyperbolic spring structure which is applied to a jack terminal as shown in FIG. 1 and FIG. 2, and the cage hyperbolic spring structure includes a plurality of copper hyperbolic columnar oblique springs.
  • the hyperbola in the hyperbolic columnar oblique spring refers to the inner and outer two-layer curve
  • the column shape refers to the shape of the column after the shape
  • the oblique shape refers to the diameter direction
  • each straight line segment has a certain clip with the radial direction.
  • the angle is shown in Figure 3-5.
  • the cylindrical annular structure is internally inserted with a thin-walled copper sheet for supporting the hyperbolic columnar oblique spring, and the thin-walled copper sheet may have a thickness of 0.2-10 mm.
  • the spring lines at the cylindrical ends of the hyperbolic columnar oblique spring form an angle of 0 to 90 degrees in the radial direction.
  • the inner ring spring and the outer ring spring of the hyperbolic column-shaped oblique spring are at an angle of 0 to 20 degrees with the axial direction.
  • the inner-circle spring and the outer ring spring of the hyperbolic column-shaped oblique spring are both parallel to the axial direction.
  • the outer ring spring of the hyperbolic columnar oblique spring is parallel to the axial direction, and the inner ring spring has an angle of 0-20 degrees with the axial direction.
  • the hyperbolic columnar oblique spring has a radial shape of “U”.
  • each of the copper wires in the hyperbolic columnar oblique spring has a diameter of 0.05 to 10 mm.
  • the pressing structure 3 is an oblique riveting shrinkage, as shown in FIG. 2 , the pressing structure 3 is an elastic C ring for pressing the cylindrical ring structure.
  • the machined body as shown in FIG. 7, is a structural schematic diagram of an elastic C-ring.
  • the invention adopts a copper wire as a raw material (diameter 0.05-10 mm) to form two springs of a hyperbolic oblique spring and a hyperbolic straight spring as follows by a spring machine, and then is annularly wound into a closed method by using an assembly method or a laser spot welding method. Cylindrical ring structure.
  • the assembly method is to insert the thin copper wires at both ends into a common machined body, and then rive the joints together to form a closed circle.
  • the spot welding method is to melt and sinter the copper wire by using the current generated by the positive and negative electrodes on the copper wires at both ends. together.
  • a thin-walled copper piece may be inserted inside the spring as a sheath to support the annular spring.
  • each copper wire undergoes elastic deformation rather than plastic deformation during compression, which improves the service life of the product and never prolongs the time of spring decay.
  • the insertion force can maintain a stable positive pressure in a small amount, thereby achieving a very small insertion force, which is almost zero, and can be called "zero.” Insertion force" program.
  • the deformation caused by radial compression comes from the combination of "radial U-shaped deformation” and elastic deformation in the normal direction, so it ensures the positive pressure of the male and female terminals during the insertion process, which can ensure its high current. Stable contact in the case. Other advantages are similar to a hyperbolic oblique spring.
  • a socket is further provided, the socket includes at least one jack, as shown in FIG. 4, the jack is equipped with a cage hyperbolic spring structure, and the cage hyperbolic spring structure is as The cage hyperbolic spring structure of any of the first aspects.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)

Abstract

一种笼式双曲线弹簧结构及插座，其中，笼式双曲线弹簧结构应用于插孔端子中，该笼式双曲线弹簧包括多个铜质双曲线柱状斜形弹簧通过激光点焊环形卷绕成封闭的圆柱型环形结构，以及机加工本体，该圆柱型环形弹簧结构插入机加工本体中，然后在薄壁管端部通过斜形铆接缩口确保圆柱形斜形簧在公母端子的插拔中不脱落，同时也可以采用装配的方法装入一弹性C环在薄壁管端部起到压紧。本发明实施例中，保证了公母端子在对插过程中的正压力，可以确保其在超大电流情况下的稳定接触，每根铜丝在压缩的过程中产生弹性变形而非塑性变形，提高了产品的使用寿命，从而延长了弹簧衰退的时间。同时双曲线弹簧结构在压缩的过程中可以相互重叠，从而可以减少弹簧的弹性变形的空间，从而可以确保较小的体积。

Description

一种笼式双曲线弹簧结构及插座
本申请要求于2016年11月16日提交中国专利局、申请号为201611021731.X、发明名称为“一种笼式双曲线弹簧结构及插座”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及插座技术领域，特别涉及一种笼式双曲线弹簧结构及插座。
背景技术
当前，随着电动汽车行业的发展，由于需要使用较大的电流，产品对插孔有着更高的要求，例如，较低的插拔力以满足人们日常频繁的充电插拔需求；较低的接触电阻，以减低大电流引发的温升问题等。
目前已有的电连接器接触件有单叶回转双曲面线簧插孔，单叶回转双曲面线簧插孔是利用一组排列成单叶回转双曲面结构的弹性金属丝均匀地包络在插入其内的插针表面上，属于多线包络接触，采用这种线簧结构的插孔接触件由内套、外套、后套、弹性金属丝四部分组成，其内套管内同轴装有排列成单叶回转双曲面的一组弹性金属丝，装在内套管中的金属丝的两端伸出端口外，并在内套管外圆柱面向回弯曲，弯曲部由前套和后套的内圆柱面与内套管外圆柱面夹紧，前套、后套两部分经压接连成一体形成外套。
针对线簧插孔主要存在以下不足：
1、套接方法接触电阻大、耐拉力差，前后套极容易受拉力从压点脱离，造成衔接故障和事故；2、结构复杂，组合零件较多，体积无法进一步缩小，不利于向小型化、密集化发展；3、加工工艺复杂，精度要求高，导致产品合格率低，成本提高；4、弹性金属丝在限定的空间内不可能很粗，使得每根丝难以承受较大电流的冲击；5、使用过程中弹性金属丝的断丝现象无法避免；6、插拔力大，由于其铜丝固定在薄壁管两端，不可以移动导致较大的插拔力。
发明内容
本发明实施例提供了一种笼式双曲线弹簧结构及插座，确保在大电流 情况下的稳定接触，提高了产品的使用寿命，结构简单，利于小型化生产。
第一方面，提供一种笼式双曲线弹簧结构，应用于插孔端子中，所述笼式双曲线弹簧结构包括多个铜质双曲线柱状斜形弹簧以及机加工本体，所述多个铜质双曲线柱状斜形弹簧通过激光点焊环形卷绕成封闭的圆柱型环形结构，所述机加工本体为圆管状，所述圆柱型环形结构插入所述机加工本体中并紧贴所述机加工本体，所述机加工本体端部设有用于压紧所述圆柱型环形结构和所述机加工本体的压紧结构。
可选的，所述圆柱型环形结构内部插入有以支撑起所述双曲线柱状斜形弹簧的薄壁铜片，所述薄壁铜片的厚度可以为0.2-10mm。
可选的，所述双曲线柱状斜形弹簧的柱状两端的弹簧线在径向上所成的夹角为0～90度。
可选的，所述双曲线柱状斜形弹簧中内圈弹簧，外圈弹簧的均与轴向成0～20度夹角。
可选的，所述双曲线柱状斜形弹簧中内圈弹簧，外圈弹簧均与轴向平行。
可选的，所述双曲线柱状斜形弹簧中外圈弹簧与轴向平行，内圈弹簧与轴向有0～20度的夹角。
可选的，所述双曲线柱状斜形弹簧中每根弹簧铜丝的直径为0.05～10mm。
可选的，所述压紧结构为斜形铆接缩口或者弹性C环。
可选的，所述机加工本体壁厚为0.5-5mm。
第二方面，提供一种插座，所述插座包括至少一个插孔，所述插孔中装配有笼式双曲线弹簧结构，所述笼式双曲线弹簧结构为如第一方面中任一所述的笼式双曲线弹簧结构。
从以上技术方案可以看出，本发明实施例具有以下优点：
本发明实施例中由于公端子在插入插孔中时径向压缩产生的形变来自于径向与法向方向的弹性变形的综合作用，所以保证了公母端子在对插过程中的正压力，可以确保其在大电流情况下的稳定接触，每根铜丝在压缩的过程中产生弹性变形而非塑性变形，提高了产品的使用寿命，从而延长 了弹簧衰退的时间。在公母端子的配合过程中，双曲线弹簧由于其倾斜的原因导致轴向中间部分的直径小于两端部分的直径，当公端子插入时形成包络结构，从而在每根铜丝上形成大量的接触点，这样可以让该结构可以通过超大电流的同时不会有高的接触阻抗。同时双曲线弹簧结构在压缩的过程中可以相互重叠，从而可以减少弹簧的弹性变形的空间，从而可以确保较小的体积。
附图说明
图1是本发明实施例中双曲线柱状斜形弹簧的一个实施例示意图；
图2是本发明实施例中双曲线柱状斜形弹簧的另一个实施例示意图；
图3是本发明实施例中双曲线柱状斜形弹簧环绕形成的圆柱型环形结构的一个实施例示意图；
图4是本发明实施例中双曲线柱状斜形弹簧环绕形成的圆柱型环形结构的另一个实施例示意图；
图5是本发明实施例中双曲线柱状斜形弹簧环绕形成的圆柱型环形结构的另一个实施例示意图；
图6为本发明实施例中机加工本体的一个结构实施例示意图；
图7是本发明实施例中弹性C环的一个结构实施例示意图。
具体实施方式
为了使本技术领域的人员更好地理解本发明方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
本发明实施例中提供一种笼式双曲线弹簧结构，如图1、图2所示，应用于插孔端子中，所述笼式双曲线弹簧结构包括多个铜质双曲线柱状斜形弹簧通过激光点焊环形卷绕成封闭的圆柱型环形结构1，以及机加工本体2，所述圆柱型环形结构插入所述机加工本体中并紧贴所述机加工本体2，所述机加工本体2端部设有用于压紧所述圆柱型环形结构和所述机加工本体2的压紧结构3，如图6所示为机加工本体2的一个结构实施例示意 图。
其中，双曲线柱状斜形弹簧中的双曲线是指内外两层曲线，柱状是指成型后的形状呈柱形，斜形是指沿直径方向，每一根直线段与径向呈一定的夹角，如图3-图5所示。
可选的，所述圆柱型环形结构内部插入有以支撑起所述双曲线柱状斜形弹簧的薄壁铜片，所述薄壁铜片的厚度可以为0.2-10mm。
可选的，所述双曲线柱状斜形弹簧的柱状两端的弹簧线在径向上所成的夹角为0～90度。
可选的，如图3所示，所述双曲线柱状斜形弹簧中内圈弹簧，外圈弹簧的均与轴向成0～20度夹角。
可选的，如图4所示，所述双曲线柱状斜形弹簧中内圈弹簧，外圈弹簧均与轴向平行。
可选的，如图5所示，所述双曲线柱状斜形弹簧中外圈弹簧与轴向平行，内圈弹簧与轴向有0～20度的夹角。
可选的，所述双曲线柱状斜形弹簧的径向呈“U”型。
可选的，所述双曲线柱状斜形弹簧中每根铜丝的直径为0.05～10mm。
可选的，如图1所示，所述压紧结构3为斜形铆接缩口，如图2所示，所述压紧结构3为弹性C环，用于压紧所述圆柱型环形结构和所述机加工本体，如图7所示为弹性C环的结构示意图。
本发明采用铜丝作为原材料(直径0.05-10mm)通过弹簧机成型形成如下双曲线斜形簧与双曲线直形簧两种弹簧，然后使用装配的方法或者激光点焊的方法环形卷绕成封闭的圆柱型环形结构。装配方法是将两端的细铜丝分别插入共同的机加工本体中，然后铆接在一起形成封闭的圆，点焊的方法是将两端的铜丝采用正负电极产生的电流使铜丝熔化烧结在一起。在形成环形闭环的过程中，根据弹簧丝直径的大小，如果铜丝过细，可以在其弹簧内部插入薄壁铜片作为陈套以支撑起环形弹簧。
本发明实施例中双曲线斜形簧的优点如下：
第一，由于其采用的是斜形结构，其公母端子在插入的时候形成了完美的缠绕结构，使单一的铜丝可以完整地贴附在公端子的表面上，同时密 集的铜丝同时包附，其密集的线接触方法大大提升了其通电能力；同时在由于其双曲线特性，其既保证了公端子在插入时与弹簧的稳定接触，同时也保证了弹簧在装配到机加工端子中的时候稳定的接触。
第二，每根铜丝与径向间的夹角，使每根铜丝在压缩的过程中产生弹性变形而非塑性变形，提高了产品的使用寿命，从未延长了弹簧衰退的时间。
第三，由于接触区域产用的是弹性形变，其插入力可以在很少的情况小依然保持稳定的正压力，从而实现了非常小的插入力，近乎于“零”，固可称“零插入力”方案。
第四，由于每根丝形成的平面与径向之间的夹角，从而可以确保弹簧在压缩的过程中可以相互重叠，从而可以减少弹簧的弹性变形的空间，从而可以确保较小的体积。
而采用双曲线直行簧的结构优点如下：
其径向压缩产生的形变来自于“径向的U型变形”与法向方向的弹性变形的综合作用，所以其保证了公母端子在对插过程中的正压力，可以确保其在大电流情况下的稳定接触。其它优点类似于双曲线斜形簧。
本发明实施例中还提供一种插座，所述插座包括至少一个插孔，如图4所示，所述插孔中装配有笼式双曲线弹簧结构，所述笼式双曲线弹簧结构为如第一方面中任一所述的笼式双曲线弹簧结构。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
以上所述，以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (9)

  1. 一种笼式双曲线弹簧结构，其特征在于，应用于插孔端子中，所述笼式双曲线弹簧结构包括多个铜质双曲线柱状斜形弹簧以及机加工本体，所述多个铜质双曲线柱状斜形弹簧通过激光点焊环形卷绕成封闭的圆柱型环形结构，所述机加工本体为圆管状，所述圆柱型环形结构插入所述机加工本体中并紧贴所述机加工本体，所述机加工本体端部设有用于压紧所述圆柱型环形结构和所述机加工本体的压紧结构。
  2. 根据权利要求1所述的弹簧结构，其特征在于，所述双曲线柱状斜形弹簧的柱状两端的弹簧线在径向上所成的夹角为0～90度。
  3. 根据权利要求2所述的弹簧结构，其特征在于，所述双曲线柱状斜形弹簧中内圈弹簧，外圈弹簧均与轴向成0～20度夹角。
  4. 根据权利要求2所述的弹簧结构，其特征在于，所述双曲线柱状斜形弹簧中内圈弹簧，外圈弹簧均与轴向平行。
  5. 根据权利要求2所述的弹簧结构，其特征在于，所述双曲线柱状斜形弹簧中外圈弹簧与轴向平行，内圈弹簧与轴向有0～20度的夹角。
  6. 根据权利要求1所述的弹簧结构，其特征在于，所述双曲线柱状斜形弹簧中每根弹簧铜丝的直径为0.05～10mm。
  7. 根据权利要求1所述的弹簧结构，其特征在于，所述压紧结构为斜形铆接缩口或者弹性C环。
  8. 根据权利要求1所述的弹簧结构，其特征在于，所述机加工本体壁厚为0.5-5mm。
  9. 一种插座，其特征在于，所述插座包括至少一个插孔，所述插孔中装配有笼式双曲线弹簧结构，所述笼式双曲线弹簧结构为如权利要求1至8中任一所述的笼式双曲线弹簧结构。
PCT/CN2017/106657 2016-11-16 2017-10-18 一种笼式双曲线弹簧结构及插座 Ceased WO2018090777A1 (zh)

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