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WO2024011607A1 - 连接器和弹性接触件 - Google Patents

连接器和弹性接触件 Download PDF

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Publication number
WO2024011607A1
WO2024011607A1 PCT/CN2022/106056 CN2022106056W WO2024011607A1 WO 2024011607 A1 WO2024011607 A1 WO 2024011607A1 CN 2022106056 W CN2022106056 W CN 2022106056W WO 2024011607 A1 WO2024011607 A1 WO 2024011607A1
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WO
WIPO (PCT)
Prior art keywords
contact
elastic
elastic contact
section
contact part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/106056
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English (en)
French (fr)
Inventor
冯罡
伍长鸣
漆一宏
范峻
朱宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuhai Linke Technology Co Ltd
Original Assignee
Zhuhai Linke Technology Co Ltd
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Filing date
Publication date
Application filed by Zhuhai Linke Technology Co Ltd filed Critical Zhuhai Linke Technology Co Ltd
Priority to PCT/CN2022/106056 priority Critical patent/WO2024011607A1/zh
Publication of WO2024011607A1 publication Critical patent/WO2024011607A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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

Definitions

  • the present application relates to the technical field of connectors, and in particular to a connector and an elastic contact piece.
  • Connectors can be used to connect different electronic components to achieve signal transmission between connected electronic components.
  • the performance of the connector will have a vital impact on the quality of signal transmission and even affect the integrity of signal transmission.
  • an elastic contact piece including: a wiring segment and an elastic contact segment.
  • the first end of the elastic contact segment is connected to the second end of the wiring segment.
  • the elastic contact segment It has a first contact part, a second contact part for contacting with the conductive contact point, and a third contact part.
  • the second contact part is located between the first contact part and the first contact part in the extension direction of the elastic contact section.
  • the elastic contact section is curved so that the first contact part and the third contact part are always in contact or the first contact part and the third contact part are separated by a predetermined distance and are in a When the second contact part is in contact with the conductive contact, the first contact part is in contact with the third contact part.
  • the first contact part is in contact with the third contact part when the second contact part is in contact with the conductive contact, so that the second contact part can form a conductive relationship with the wiring segment from two paths at the same time. , thereby achieving the purpose of improving the characteristic impedance of the elastic contact.
  • the elastic contact piece is integrally made of elastic metal sheets.
  • the contact surface of at least one of the first contact portion, the second contact portion and the third contact portion is a curved surface.
  • the elastic contact segment is connected by multiple arc segments, and the radius of each arc segment is 0.1 mm-6 mm.
  • the second end of the elastic contact segment is bent toward the inside of the elastic contact segment or toward the outside of the elastic contact segment.
  • the elastic contact segment includes an outwardly protruding arc segment and a meandering segment connected to the arc segment, and at least a part of the meandering segment is opposite to the arc segment.
  • the elastic contact section is formed by an elastic metal sheet with a rectangular cross-section, the thickness of the elastic metal sheet is 0.06mm-0.12mm, and the width of the elastic metal sheet is 0.25mm. -0.5mm.
  • the overall height of the elastic contact section is 2mm-5mm, and the overall width of the elastic contact section is 1.2mm-2.4mm.
  • the first contact part is slidable relative to the third contact part.
  • the elastic contact piece according to the embodiment of the present application further includes a connecting sleeve, which is sleeved on the first contact part and the third contact part to constrain the first contact part and the third contact part. .
  • the connecting sleeve is C-shaped or O-shaped.
  • the elastic contact segment is generally circular or elliptical.
  • the embodiment of the present application further provides a connector, including:
  • a housing having a receiving cavity
  • An insulating member, the insulating member is fixed in the containing cavity;
  • the elastic contact piece is at least partially disposed in the accommodation cavity, and the wiring segment is fixed in the accommodation cavity and wrapped by the insulating member.
  • some of the elastic contact members are signal conductors, and some of the elastic contact members are ground conductors.
  • Figure 1 is an exploded schematic diagram of a connector and a circuit board in an embodiment of the present application
  • Figure 2 is a three-dimensional schematic diagram of a connector in an embodiment of the present application.
  • Figure 3 is a schematic cross-sectional view of a connector in an embodiment of the present application.
  • Figure 4 is a three-dimensional schematic view of an elastic contact member in an embodiment of the present application.
  • Figure 5 is a side view of an elastic contact member in an embodiment of the present application.
  • Figure 6 is a side view of an elastic contact member in an embodiment of the present application.
  • Figure 7 is a characteristic impedance curve diagram of an open-shaped (J-shaped) elastic contact segment and a closed-shaped (O-shaped) elastic contact segment 22 in an embodiment of the present application;
  • Figure 8 is a gain/loss curve diagram of the open-shaped (J-shaped) elastic contact section and the closed-shaped (O-shaped) elastic contact section 22 in the range of 0 to 20 GHz in an embodiment of the present application;
  • Figure 9 is a gain/loss curve diagram of the open-shaped (J-shaped) elastic contact section and the closed-shaped (O-shaped) elastic contact section 22 in the range of 0 to 60 GHz in an embodiment of the present application;
  • Figure 10 is a side view of an elastic contact member in an embodiment of the present application.
  • 20-elastic contact piece 21-wiring section; 22-elastic contact section; 221-first contact part; 222-second contact part; 223-third contact part; 23-connecting sleeve; 2201-arc section; 2202 -Zigzag section;
  • Signal integrity design mainly focuses on: at each position of the transmission path, the shape and relative position of the metal conductors in the cross-section and the surrounding media properties.
  • the ideal design requirement is that the characteristic impedance of all positions in the transmission path is equal to one with the signal source. Or the matching resistance value at the load end, such as 50 ohms, 85 ohms or 100 ohms. This minimizes the reflection loss of the entire transmission channel.
  • the transmission path consists of only one twinax coaxial cable
  • the characteristic impedance value can be calculated based on the geometric size information and material properties of its cross-section. For example, the diameter of the inner conductor, the spacing between the two inner conductors, the distance from the inner conductor to the outer shield, and the material properties between the conductors. Adjusting these parameters can change the characteristic impedance of the twin-core coaxial cable.
  • the geometric information in the cross-section at different locations is inconsistent, and parameters such as conductor shape and dielectric materials need to be adjusted separately to make the characteristic impedance consistent at each location in the link.
  • this embodiment provides an elastic contact 20, which is characterized in that it includes: a wiring section 21 and an elastic contact section 22.
  • the first end of the elastic contact section 22 is in contact with the second end of the wiring section 21.
  • the elastic contact section has a first contact section 221, a second contact section 222 for contacting the conductive contact 2, and a third contact section 223.
  • the second contact section 222 is located at the first contact section in the extension direction of the elastic contact section 22.
  • the elastic contact section 22 is curved so that the first contact portion 221 and the third contact portion 223 are always in contact or the first contact portion 221 and the third contact portion 223 are separated by a predetermined distance and are in a curved shape.
  • the first contact part 221 is in contact with the third contact part 223. That is to say, when the second contact part 222 is in contact with the conductive contact 2 or not, there may be two contact states between the first contact part 221 and the third contact part 223. One is whether the second contact part 222 is in contact with the conductive contact 2 or not. When the conductive contact 2 is in contact or not in contact, the first contact part 221 and the third contact part 223 always remain in contact. The other is when the second contact part 222 is not in contact with the conductive contact 2 , the first contact part 221 and the third contact part 223 are in contact with each other. The third contact part 223 is also not in contact with each other. When the second contact part 222 is in contact with the conductive contact 2 , the first contact part 221 is in contact with the third contact part 223 .
  • the second contact part 222 can form a conductive relationship with the wiring segment 21 from two paths at the same time, which can It is understood that the elastic contact section 22 has two cross-sections, thereby achieving the purpose of improving the characteristic impedance of the elastic contact piece 20 .
  • the elastic contact piece 20 can be roughly divided into two parts, namely the wiring section 21 and the elastic contact section 22.
  • the shapes of the conductors in the cross sections of the two parts can be different, but both parts need to meet the characteristic impedance requirement of 85 ohms.
  • the wiring section 21 is completely wrapped by plastic in the connector.
  • the elastic contact section 22 is bending and deforming and cannot be fixed with plastic.
  • the elastic contact section 22 is mainly surrounded by air medium, which requires that the area of the signal conductor in the cross section is larger than The connection section 21 is larger, and the spacing between the signal conductors is smaller than that of the connection section 21 in order to achieve the same impedance.
  • the cross-sectional shape of the elastic contact segment 22 Due to processing accuracy limitations and requirements for the insulation distance between conductors, the cross-sectional shape of the elastic contact segment 22 has a very small range of adjustment. It is difficult to achieve the characteristic impedance requirement of 85 ohms using a J- or C-shaped spring leaf. If the elastic contact piece 20 of the above embodiment is used, then there are two conductor cross-sections in the elastic contact section 22, and the two cross-sectional areas together are much larger than the cross-sectional area of the open-shaped spring leaf, making this The characteristic impedance of the area becomes smaller, which better meets the needs of impedance matching.
  • curve 40 is the characteristic impedance of the open-shaped (J-shaped) elastic contact segment
  • curve 41 is the characteristic impedance of the closed-shaped (O-shaped) elastic contact segment 22 .
  • the dotted line is the impedance control target of 85 ohms.
  • the characteristic impedance of the O-shaped elastic contact segment 22 is about 25 ohms smaller than that of the J-shaped one. This helps reduce reflection losses in signal transmission.
  • O-shaped elastic contact segment 22 is easy to form resonance.
  • the frequency of resonance is related to the size of the O-shape. The smaller the size, the higher the resonance frequency.
  • curve 60 is the gain/loss curve of the open-shaped (J-shaped) elastic contact section
  • curve 61 is the gain/loss curve of the closed-shaped (O-shaped) elastic contact section 22 .
  • the unit of the curve is dB. If the value is positive, it means there is gain from input to output. If the value is negative, it means there is lossy attenuation from the input to the output. Usually the loss of the elastic contact section increases with the increase of frequency.
  • Curve 61 has a large resonance around 50+ GHz.
  • FIG. 8 is a partial enlargement of Figure 9 in the range of 0 to 20 GHz.
  • Curve 50 is the gain/loss curve of the open-shaped (J-shaped) elastic contact section, and curve 51 is the gain of the closed-shaped (O-shaped) elastic contact section 22 /loss curve.
  • the impedance matching of the O-shaped spring piece is better than that of the J-shaped spring piece, it can be seen that its loss is less than the loss of the J-shaped spring piece in the range of 0 to 20 GHz. At 20GHz, the loss of the J-shaped spring leaf is about 0.6dB, while the loss of the O-shaped spring leaf is less than 0.2dB.
  • the elastic contact piece is integrally made of an elastic metal sheet, thereby improving the consistency of the product, and the material of the elastic contact piece may be copper.
  • the contact surface of at least one of the first contact part 221, the second contact part 222 and the third contact part 223 is a curved surface.
  • the contact surface of the first contact part 221 and the third contact part 223 is a curved surface, they can slide relatively smoothly.
  • the contact surface of the second contact part 222 is a curved surface, the second contact part 222 can better interact with the curved surface.
  • Conductive contact 2 contacts.
  • the conductive contact 2 is formed on the circuit board 3.
  • the circuit board 3 is provided with a socket shell 4 and a conductive contact 2 located inside the socket shell 4.
  • the elastic contact 20 of the connector passes through the conductive contact. 2.
  • the elastic contact realizes the electrical connection with the circuit board 3.
  • the elastic contact segment 22 is connected by multiple arc segments, and the radius of each arc segment is 0.1mm-6mm.
  • the elastic contact section 22 consists of four arc-shaped sections, the radii of which are R1, R2, R3, and R4 respectively. Among them, R1 has the smallest value and R3 has the largest value.
  • the elastic contact segment 22 may also include a straight segment and an arc segment, that is to say, some positions may be designed as straight segments.
  • the second end (ie, the end) of the elastic contact segment 22 is bent toward the inside of the elastic contact segment 22 or toward the outside of the elastic contact segment 22 .
  • the second end of the elastic contact section 22 is bent toward the inside of the elastic contact section 22.
  • the second end of the elastic contact section 22 is bent towards the outside of the elastic contact section 22.
  • the elastic contact section 22 includes an outwardly protruding arc section 2201 and a meandering section 2202 connected to the arc section 2201. At least a part of the meandering section 2202 is opposite to the arc section 2201. .
  • the second contact portion 222 is located at the bottom end of the arc segment 2201.
  • the meandering section 2202 has a plurality of arcs, the meandering section 2202 can be wavy as a whole, the arc section 2201 has one arc, and the meandering section 2202 is located on a concave side of the arc section 2201.
  • Designing the elastic contact segment 22 to include an outwardly protruding arc segment 2201 and a meandering segment 2202 connected to the arc segment 2201 can further improve impedance matching.
  • the elastic contact section 22 is formed of an elastic metal sheet with a rectangular cross-section, the thickness of the elastic metal sheet is 0.06mm-0.12mm, and the width a of the elastic metal sheet is 0.25mm-0.5mm.
  • the thickness of the elastic metal piece is 0.08mm, and the width of the elastic metal piece is 0.3mm.
  • Those skilled in the art can select the thickness and width of the elastic metal sheet according to the performance requirements of different connectors.
  • the overall height H of the elastic contact section 22 is 2mm-5mm, and the overall width W of the elastic contact section 22 is 1.2mm-2.4mm.
  • the height H here refers to the distance from the top to the bottom of the elastic contact section 22
  • the overall width here refers to the distance from the leftmost end to the rightmost end of the elastic contact section 22 .
  • the first contact portion 221 is slidable relative to the third contact portion 223 .
  • the elastic contact piece 20 is elastically deformed, so that the first contact portion 221 is relatively opposite to the third contact portion 222.
  • the position of the contact part 223 changes. If the first contact part 221 is always in contact with the third contact part 223, then when the second contact part 222 is in elastic contact with the conductive contact 2, the first contact part 221 is in contact with the third contact part 223.
  • the first contact part 221 Sliding a certain distance, if the first contact part 221 is separated from the third contact part 223 by a predetermined distance, when the second contact part 222 comes into contact with the conductive contact 2 , the first contact part 221 gradually approaches the third contact part 223 until it contacts the third contact part 223 .
  • the three contact parts 223 are in contact, and after contact, they can slide relative to the third contact part 223 for a certain distance.
  • the elastic contact member 20 further includes a connecting sleeve 23 .
  • the connecting sleeve 23 is sleeved on the first contact part 221 and the third contact part 223 to constrain the first contact part 221 and the third contact part. 223, so that the first contact part 221 and the third contact part 223 move relatively within a predetermined range, preventing the first contact part 221 and the third contact part 223 from being separated, and effectively ensuring that the second contact part 222 is in contact with the conductive contact 2 Then the first contact part 221 can stably contact the third contact part 223.
  • the connecting sleeve 23 is C-shaped or O-shaped.
  • the connecting sleeve 23 may be an insulating part or a non-insulating part.
  • resilient contact segment 22 is generally circular or elliptical.
  • the connector mainly includes: a housing 10, an insulating member 30, and the elastic contact member 20 of any of the above embodiments.
  • the housing 10 has a receiving cavity, and the insulating member 30 Fixed in the accommodating cavity, the elastic contact piece 20 is at least partially disposed in the accommodating cavity, the wiring section 21 is fixed in the accommodating cavity and wrapped by the insulating member 30 .
  • first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
  • connection In this application, unless otherwise clearly stated and limited, the terms “installation”, “connection”, “connection”, “fixing” and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated; it can be mechanically connected, electrically connected or communicable with each other; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction between two elements, Unless otherwise expressly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
  • a first feature being “on” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. touch.
  • the terms “above”, “above” and “above” the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature.
  • "Below”, “below” and “beneath” the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.
  • the terms “one embodiment,” “some embodiments,” “example,” “specific examples,” or “some examples” or the like mean that a specific feature, structure, material, or structure is described in connection with the embodiment or example. Features are included in at least one embodiment or example of the application. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification unless they are inconsistent with each other.

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  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

本申请公开了一种弹性接触件和连接器，弹性接触件包括：接线段和弹性接触段，弹性接触段的第一端与接线段的第二端相接，弹性接触段具有第一接触部、用于与导电触点接触的第二接触部以及第三接触部，第二接触部在弹性接触段的延伸方向上位于第一接触部和第三接触部之间，弹性接触段为弯曲状以便第一接触部与第三接触部始终接触或第一接触部与第三接触部间隔预定距离且在第二接触部与导电触点接触时第一接触部与第三接触部接触。本申请实施例的弹性接触件由于在第二接触部与导电触点接触时第一接触部与第三接触部接触，因此使得第二接触部可以从两条路径同时与接线段形成导通关系，从而起到改善弹性接触件的特性阻抗的目的。

Description

连接器和弹性接触件 技术领域
本申请涉及连接器技术领域，尤其涉及一种连接器和弹性接触件。
背景技术
连接器可用于连接不同的电子元件，以实现所连接的电子元件之间的信号传输，连接器的性能会对信号传输的质量有至关重要的影响，甚至影响信号传输的完整性。
相关技术中的连接器，由于接触件的结构缺陷而导致难以实现稳定地信号传输，因此，需要改进接触件的结构，以实现稳定地信号传输。
申请内容
本申请旨在至少在一定程度上解决相关技术中的技术问题之一。为此，本申请的实施例提出一种弹性接触件，包括：接线段和弹性接触段，所述弹性接触段的第一端与所述接线段的第二端相接，所述弹性接触段具有第一接触部、用于与导电触点接触的第二接触部以及第三接触部，所述第二接触部在所述弹性接触段的延伸方向上位于所述第一接触部和所述第三接触部之间，所述弹性接触段为弯曲状以便所述第一接触部与所述第三接触部始终接触或所述第一接触部与所述第三接触部间隔预定距离且在所述第二接触部与所述导电触点接触时所述第一接触部与所述第三接触部接触。
本申请实施例的弹性接触件由于在第二接触部与导电触点接触时第一接触部与第三接触部接触，因此使得第二接触部可以从两条路径同时与接线段形成导通关系，从而起到改善弹性接触件的特性阻抗的目的。
根据本申请实施例的弹性接触件，所述弹性接触件由弹性金属片一体制成。
可选地，所述第一接触部、所述第二接触部和所述第三接触部中的至少一者的接触面为曲面。
根据本申请实施例的弹性接触件，所述弹性接触段由多个弧形段连接而成，每个所述弧形段的半径为0.1mm-6mm。
根据本申请实施例的弹性接触件，所述弹性接触段的第二端向所述弹性接触段内侧弯折或向所述弹性接触段外侧弯折。
根据本申请实施例的弹性接触件，所述弹性接触段包括向外凸出的圆弧段和与所述圆 弧段连接的曲折段，所述曲折段的至少一部分与所述圆弧段相对。
根据本申请实施例的弹性接触件，所述弹性接触段由横截面为矩形的弹性金属片形成，所述弹性金属片的厚度为0.06mm-0.12mm，所述弹性金属片的宽度为0.25mm-0.5mm。
根据本申请实施例的弹性接触件，所述弹性接触段的整体高度为2mm-5mm，所述弹性接触段的整体宽度为1.2mm-2.4mm。
根据本申请实施例的弹性接触件，所述第一接触部相对所述第三接触部可滑动。
根据本申请实施例的弹性接触件，还包括连接套，所述连接套套设于所述第一接触部和所述第三接触部，以约束所述第一接触部和所述第三接触部。
根据本申请实施例的弹性接触件，所述连接套呈C形或O形。
根据本申请实施例的弹性接触件，所述弹性接触段为大体圆形或椭圆形。
本申请实施例进一步提供一种连接器，包括：
外壳，所述外壳具有容纳腔；
绝缘件，所述绝缘件固定于所述容纳腔内；和
本申请实施例的弹性接触件，所述弹性接触件至少部分地设置于所述容纳腔内，所述接线段固定于所述容纳腔内，并被所述绝缘件包裹。
可选地，所述弹性接触件的数量为多个，部分所述弹性接触件为信号导体，部分所述弹性接触件为接地导体。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本申请的实施例，并与说明书一起用于解释本申请的原理。
图1是本申请一实施例中连接器与电路板的爆炸示意图；
图2是本申请一实施例中连接器的立体示意图；
图3是本申请一实施例中连接器的剖面示意图；
图4是本申请一实施例中弹性接触件的立体示意图；
图5是本申请一实施例中弹性接触件的侧视图；
图6是本申请一实施例中弹性接触件的侧视图；
图7是本申请一实施例中开放形状(J形)的弹性接触段和闭合形状(O形)的弹性接触段22的特性阻抗曲线图；
图8是本申请一实施例中开放形状(J形)的弹性接触段和闭合形状(O形)的弹性接触段22在0～20GHz范围内的增益/损耗曲线图；
图9是本申请一实施例中开放形状(J形)的弹性接触段和闭合形状(O形)的弹性接触段22在0～60GHz范围内的增益/损耗曲线图；
图10是本申请一实施例中弹性接触件的侧视图。
附图标记：
1-电缆线；2-导电触点；3-电路板；4-插座壳；
10-外壳；
20-弹性接触件；21-接线段；22-弹性接触段；221-第一接触部；222-第二接触部；223-第三接触部；23-连接套；2201-圆弧段；2202-曲折段；
30-绝缘件。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出。下面通过参考附图描述的实施例是示例性的，旨在用于解释本申请，而不能理解为对本申请的限制。
信号完整性设计主要关注：在传输路径的各个位置，横截面内的金属导体的形状、相对位置以及周围的介质属性，理想设计的要求是传输路径中所有位置的特性阻抗都等于一个与信号源或者负载端匹配的阻值，比如50欧姆、85欧姆或100欧姆等。这样使得整个传输通道的反射损耗最小化。
例如传输路径仅由一根双芯同轴电缆(twinax)构成，那么只要根据它的横截面上的几何尺寸信息和材料特性，就可以计算出特性阻抗值。例如，内导体的直径、两内导体的间距、内导体到外屏蔽的距离、以及导体之间的材料属性，调整这些参数就可以改变双芯同轴电缆的特性阻抗。
在实际的信号链路中，不同位置横截面中的几何信息是不一致的，需要分别调整各处的导体形状、介质材料等参数使链路中各个位置的特性阻抗达到一致。
参阅图4-图6，本实施方式提供一种弹性接触件20，其特征在于，包括：接线段21和弹性接触段22，弹性接触段22的第一端与接线段21的第二端相接，弹性接触段具有第一接触部221、用于与导电触点2接触的第二接触部222以及第三接触部223，第二接触部222在弹性接触段22的延伸方向上位于第一接触部221和第三接触部223之间，弹性接触段22为弯曲状以便第一接触部221与第三接触部223始终接触或第一接触部221与第三接触部223间隔预定距离且在第二接触部222与导电触点2接触时第一接触部221与第三接触部223接触。也就是说，在第二接触部222与导电触点2接触和不接触时，第一接触部221与第三接触部223的接触状态可以有两种，一种是无论第二接触部222与导电触点2接触和不接触，第一接触部221与第三接触部223始终保持接触状态，另一种是在第二接触部222与导电触点2不接触时，第一接触部221与第三接触部223也不接触，第二接触 部222与导电触点2接触时，第一接触部221与第三接触部223接触。
当第一接触部221与第三接触部223接触时，可以理解为弹性接触段22形成闭合状态；当第一接触部221与第三接触部223不接触时，可以理解为弹性接触段22形成开放形状。
由于在第二接触部222与导电触点2接触时第一接触部221与第三接触部223接触，因此使得第二接触部222可以从两条路径同时与接线段21形成导通关系，可以理解为弹性接触段22有两个横截面，从而起到改善弹性接触件20的特性阻抗的目的。
示例地，弹性接触件20可大致分成两部分，分别是接线段21和弹性接触段22，两部分的横截面上导体的形状可以不同，但都需要满足85欧姆的特性阻抗要求。接线段21在连接器中被塑胶完全包裹，弹性接触段22在发生弯曲形变，不能用塑胶固定，弹性接触段22周围主要是空气介质，这就要求在横截面上，信号导体的面积要比接线段21大，信号导体的间距要比接线段21小，才能达到与之相同的阻抗。
由于加工精度限制以及导体之间绝缘距离的要求，弹性接触段22的截面形状能调整的范围很小，使用J或C形状的弹簧片，很难达到85欧姆的特性阻抗要求。而如果使用上述实施例的弹性接触件20，那么在弹性接触段22，存在两段导体横截面，两个截面积加在一起，比开放形状的弹簧片的截面积大了许多，使得这一区域的特性阻抗变小，更好地满足阻抗匹配的需要。
如图7所示的仿真结果中，曲线40为开放形状(J形)的弹性接触段的特性阻抗，曲线41为闭合形状(O形)的弹性接触段22的特性阻抗。虚线为阻抗控制的目标85欧姆。O形的弹性接触段22的特性阻抗比J形的小25欧姆左右。这有利于减少信号传输中的反射损耗。
O形状的弹性接触段22的一个缺点是容易形成谐振，谐振的频率和O形的大小有关，尺寸越小谐振频率越高。如图9所示的仿真结果中，曲线60为是开放形状(J形)的弹性接触段的增益/损耗曲线，曲线61为闭合形状(O形)的弹性接触段22的增益/损耗曲线。曲线的单位是dB。如果数值为正数，表示输入到输出具有增益。如果数值为负数，则表示输入到输出具有损耗衰减。通常弹性接触段的损耗会随着频率的升高而增加。曲线61在50多GHz左右有一个较大的谐振。这是由于O形状这种结构所导致的。目前SFF-1016规格的连接器的信号频带在30GHz以下，O形状的弹性接触段22的谐振频率在40GHz以上，所以O形状的弹性接触段22的设计对当前产品是没有问题的。图8是图9在0～20GHz范围内的局部放大，曲线50是开放形状(J形)的弹性接触段的增益/损耗曲线，曲线51为闭合形状(O形)的弹性接触段22的增益/损耗曲线。因为O形状弹片阻抗匹配优于J形状的弹簧片，所以可以看到其损耗在0～20GHz范围内少于J形状弹簧片的损耗。在20GHz，J形状弹簧片的损耗大约0.6dB，而O形状弹簧片的损耗不到0.2dB。
在一些实施例中，弹性接触件由弹性金属片一体制成，由此可以提高产品的一致性，弹性接触件的材料可以是铜材质。
示例地，第一接触部221、第二接触部222和第三接触部223中的至少一者的接触面为曲面。当第一接触部221和第三接触部223的接触面为曲面时，两者可以相对平滑的滑动，当第二接触部222的接触面为曲面时，第二接触部222能够更好的与导电触点2接触。
在一些实施例中，导电触点2形成于电路板3上，电路板3上设置有插座壳4和位于插座壳4内侧的导电触点2，连接器的弹性接触件20通过与导电触点2弹性接触实现与电路板3的电性连接。
参阅图5，弹性接触段22由多个弧形段连接而成，每个弧形段的半径为0.1mm-6mm。图5中，弹性接触段22由4个弧形段，其半径分别是R1、R2、R3、R4，其中，R1的值最小，R3的值最大。弹性接触段22也可以包括直线段和弧形段，也就是说部分位置可以设计成直线段。
在一些实施例中，弹性接触段22的第二端(即末端)向弹性接触段22内侧弯折或向弹性接触段22外侧弯折。如图5和图6所示，弹性接触段22的第二端向弹性接触段22内侧弯折，如图10所示，弹性接触段22的第二端向弹性接触段22外侧弯折。
在一些实施例中，如图10所示，弹性接触段22包括向外凸出的圆弧段2201和与圆弧段2201连接的曲折段2202，曲折段2202的至少一部分与圆弧段2201相对。其中，第二接触部222位于圆弧段2201的底端。
具体地，曲折段2202具有多个圆弧，曲折段2202整体可以呈波浪状，圆弧段2201具有一个圆弧，曲折段2202位于圆弧段2201凹陷的一侧。
将弹性接触段22设计为包括向外凸出的圆弧段2201和与圆弧段2201连接的曲折段2202，可进一步改善阻抗匹配。
在一些实施例中，参阅图4，弹性接触段22由横截面为矩形的弹性金属片形成，弹性金属片的厚度为0.06mm-0.12mm，弹性金属片的宽度a为0.25mm-0.5mm。
示例地，弹性金属片的厚度0.08mm，弹性金属片的宽度为0.3mm。本领域技术人员可以根据不同的连接器的性能需求选择弹性金属片的厚度和宽度。
参阅图5，弹性接触段22的整体高度H为2mm-5mm，弹性接触段22的整体宽度W为1.2mm-2.4mm。这里的高度H是指弹性接触段22的最顶端到最底端的距离，这里的整体宽度是指弹性接触段22最左端到最右端的距离。
在一些实施例中，第一接触部221相对第三接触部223可滑动。当第二接触部222与导电触点2弹性接触的时候，由于导电触点2对第二接触部222形成支撑，因此使得弹性接触件20发生弹性变形，从而使得第一接触部221相对第三接触部223的位置发生改变， 若第一接触部221相对第三接触部223始终接触，则第二接触部222与导电触点2弹性接触的时，第一接触部221相对第三接触部223滑动一定距离，若第一接触部221相对第三接触部223间隔预定距离，则在第二接触部222与导电触点2接触时第一接触部221逐渐靠近第三接触部223，直至与第三接触部223接触，接触以后还可以相对第三接触部223滑动一定距离。
在一些实施例中，参阅图6，弹性接触件20还包括连接套23，连接套23套设于第一接触部221和第三接触部223，以约束第一接触部221和第三接触部223，使得第一接触部221和第三接触部223在预定的范围内相对活动，避免第一接触部221和第三接触部223分离，有效保证了第二接触部222与导电触点2接触时第一接触部221能够稳定的与第三接触部223接触。
在一些实施例中，连接套23呈C形或O形。连接套23可以是绝缘件，也可以是非绝缘件。
在一些实施例中，弹性接触段22为大体圆形或椭圆形。
本实施方式还提一种连接器，参阅图1-图3，连接器主要包括：外壳10，绝缘件30，和上述任一实施例的弹性接触件20，外壳10具有容纳腔，绝缘件30固定于容纳腔内，弹性接触件20至少部分地设置于容纳腔内，接线段21固定于容纳腔内，并被绝缘件30包裹。
在一些实施例中，弹性接触件20的数量为多个，部分弹性接触件20为信号导体，部分弹性接触件20为接地导体。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。 对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本申请中，术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (14)

  1. 一种弹性接触件(20)，其特征在于，包括：接线段(21)和弹性接触段(22)，所述弹性接触段(22)的第一端与所述接线段(21)的第二端相接，所述弹性接触段具有第一接触部(221)、用于与导电触点(2)接触的第二接触部(222)以及第三接触部(223)，所述第二接触部(222)在所述弹性接触段(22)的延伸方向上位于所述第一接触部(221)和所述第三接触部(223)之间，所述弹性接触段(22)为弯曲状以便所述第一接触部(221)与所述第三接触部(223)始终接触或所述第一接触部(221)与所述第三接触部(223)间隔预定距离且在所述第二接触部(222)与所述导电触点(2)接触时所述第一接触部(221)与所述第三接触部(223)接触。
  2. 根据权利要求1所述的弹性接触件(20)，其特征在于，所述弹性接触件由弹性金属片一体制成。
  3. 根据权利要求1或2任一项所述的弹性接触件(20)，其特征在于，所述第一接触部(221)、所述第二接触部(222)和所述第三接触部(223)中的至少一者的接触面为曲面。
  4. 根据权利要求1-3任一项所述的弹性接触件(20)，其特征在于，所述弹性接触段(22)由多个弧形段连接而成，每个所述弧形段的半径为0.1mm-6mm。
  5. 根据权利要求1-4任一项所述的弹性接触件，其特征在于，所述弹性接触段(22)的第二端向所述弹性接触段(22)内侧弯折或向所述弹性接触段(22)外侧弯折。
  6. 根据权利要求1-5任一项所述的弹性接触件(20)，其特征在于，所述弹性接触段(22)包括向外凸出的圆弧段(2201)和与所述圆弧段(2201)连接的曲折段(2202)，所述曲折段(2202)的至少一部分与所述圆弧段(2201)相对。
  7. 根据权利要求1-6任一项所述的弹性接触件(20)，其特征在于，所述弹性接触段(22)由横截面为矩形的弹性金属片形成，所述弹性金属片的厚度为0.06mm-0.12mm，所述弹性金属片的宽度为0.25mm-0.5mm。
  8. 根据权利要求1-7任一项所述的弹性接触件(20)，其特征在于，所述弹性接触段(22)的整体高度为2mm-5mm，所述弹性接触段(22)的整体宽度为1.2mm-2.4mm。
  9. 根据权利要求1-8任一项所述的弹性接触件(20)，其特征在于，所述第一接触部(221)相对所述第三接触部(223)可滑动。
  10. 根据权利要求9所述的弹性接触件(20)，其特征在于，还包括连接套(23)，所述连接套(23)套设于所述第一接触部(221)和所述第三接触部(223)，以约束所述第一 接触部(221)和所述第三接触部(223)。
  11. 根据权利要求10所述的弹性接触件(20)，其特征在于，所述连接套(23)呈C形或O形。
  12. 根据权利要求1-11任一项所述的弹性接触件(20)，其特征在于，所述弹性接触段(22)为大体圆形或椭圆形。
  13. 一种连接器，其特征在于，包括：
    外壳(10)，所述外壳(10)具有容纳腔；
    绝缘件(30)，所述绝缘件(30)固定于所述容纳腔内；和
    如权利要求1-12任一项所述的弹性接触件(20)，所述弹性接触件(20)至少部分地设置于所述容纳腔内，所述接线段(21)固定于所述容纳腔内，并被所述绝缘件(30)包裹。
  14. 根据权利要求13所述的连接器，其特征在于，所述弹性接触件(20)的数量为多个，部分所述弹性接触件(20)为信号导体，部分所述弹性接触件(20)为接地导体。
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