WO2017147761A1 - 一种探针连接器单针及探针连接器 - Google Patents
一种探针连接器单针及探针连接器 Download PDFInfo
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- WO2017147761A1 WO2017147761A1 PCT/CN2016/074884 CN2016074884W WO2017147761A1 WO 2017147761 A1 WO2017147761 A1 WO 2017147761A1 CN 2016074884 W CN2016074884 W CN 2016074884W WO 2017147761 A1 WO2017147761 A1 WO 2017147761A1
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- needle
- needle shaft
- shaft
- probe connector
- fixed
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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 field of connectors, and in particular to a probe connector single needle and probe connector.
- FIG. 1a is a schematic structural view of a common probe connector.
- the probe connector includes at least one single needle 10 and a fixing base 20, and the single needle 10 is mounted on the fixing base 20;
- FIG. 1b and FIG. 1c FIG. 1b is an exploded view of the assembly of the probe connector
- FIG. 1c is a cross-sectional view of a single needle 10 including a movable needle shaft 101, a fixed needle tube 103 and an elastic member 102.
- the three basic components are formed by riveting and connecting by a precision instrument.
- the fixed needle tube 103 is formed with a receiving cavity, and is coaxially sleeved on the outer side of the movable needle shaft 101 and the elastic member 102, and the movable needle shaft 101 can be along
- the axial direction of the fixed needle tube 103 moves in the accommodating cavity of the fixed needle tube 103, and the two ends of the elastic member 102 in the axial direction thereof are respectively in contact with the bottom surface of the accommodating cavity of the fixed needle tube 103 and the bottom surface of the movable needle shaft 101, and are compressed.
- the elastic member 102 provides the movable needle shaft 101 with a force along the axis of the movable needle shaft 101 and directed away from the opening direction of the fixed needle tube 103, and the movement of the movable needle shaft 101 in the accommodating cavity of the fixed needle tube 103 Medium, active needle An inner wall of the receiving chamber outer wall 101 of the tube 103 and the fixing needles remain in contact.
- the B end of the fixed needle tube 103 needs to be fixedly mounted on the PCB board 30 of a connected piece to be connected, and the B end of the fixed needle tube 103 is generally fixed by welding. Soldering on the pad of the PCB board, and the other conductive end of the connected member is in contact with the A end of the movable needle shaft 101, and compresses the elastic member 102, for example, when the probe connector is applied to the inside of the mobile phone, the needle 10 is fixed.
- the B end is soldered to the mobile phone main board, and the A end of the movable pin shaft 101 is in contact with the positive and negative electrode conductive contacts on the battery or the gold finger on the antenna; since the movable pin shaft 101 has a certain stroke range, the A end thereof The distance between the end and the B end is adjustable, which allows a certain assembly error in the gap between the two connected parts, and improves the tolerance of the probe connector; the current or data signal is in the fixed needle 103 and the movable needle shaft Between 101, the PCB is electrically connected or signaled to the connected member.
- the probe connector of the prior art structure generally has an opening of the cavity of the fixed needle tube 103 facing the exterior of the electronic product and exposed outside the outer casing of the electronic product during movement of the movable needle shaft 101 relative to the fixed needle tube 103.
- the elastic member 102 When the elastic member 102 is compressed, the gap is formed at the opening of the cavity of the fixed needle tube 103, which is affected by dust and moisture in the external environment, and the dirt is accumulated in the gap between the movable needle shaft 101 and the fixed needle tube 103 after long-term use.
- the movement of the movable needle shaft 101 is stuck, and at the same time, the single-pin resistance is increased or even non-conducting, which reduces the reliability of the use of the probe connector.
- the present application provides a probe connector single needle and a probe connector.
- the single needle of the structure is not easy to accumulate dirt inside thereof, and the needle movement and the single needle resistance increase due to the accumulation of dirt inside the single needle are reduced. The probability of a big problem increases the reliability of the use of the probe connector.
- the present invention provides the following technical solutions:
- a probe connector single needle including a fixed needle shaft, a movable needle tube, and an elastic member, wherein
- the movable needle tube has a needle shaft receiving cavity that is open at one end;
- the fixing needle shaft is provided with a fixing portion and a connecting portion, and the connecting portion extends from the opening of the needle shaft receiving cavity into the needle shaft receiving cavity, so that the movable needle tube and the fixed needle shaft a sliding fit; the fixing portion is configured to be coupled with the connecting hole on the fixing seat;
- the elastic member is coupled to the fixed needle shaft and the movable needle tube to provide the movable needle tube with a force along a direction of the axis of the movable needle tube and away from the fixed needle shaft.
- the bottom surface of the needle shaft receiving cavity is flat and the angle between the axis of the movable needle tube is greater than 0° and less than 90°.
- the movable needle tube is generated under the force of the elastic member because the bottom surface of the needle shaft receiving cavity is flat and the angle between the axis of the movable needle tube is greater than 0° and less than 90°. Tilting can increase the contact area between the movable needle tube and the fixed needle shaft. Therefore, during the single-needle conduction process, the current can be mainly transmitted through the movable needle tube and the fixed needle shaft, thereby reducing the current passing through the elastic member and reducing the current.
- the problem of excessive single-needle resistance and large voltage drop caused by the conduction of the elastic member reduces the occurrence of instantaneous power-off of the electronic product and ensures the stability of the single-pin use.
- an insulating member made of an insulating material is disposed between the elastic member and the bottom surface of the needle shaft receiving cavity.
- the insulator can further reduce the current conducted through the resilient member.
- the fixed needle shaft is provided with an auxiliary accommodating cavity opening toward a bottom surface of the needle shaft accommodating cavity, the auxiliary accommodating cavity and the needle The shaft receiving cavity cooperates to receive the elastic member.
- the length of the elastic member matched with the fixed needle shaft of the structure can exceed the length of the movable needle tube, and the elastic member can obtain stable elastic force and stroke under the condition that the single needle volume is small and the installation space is limited.
- the elastic member is a compression spring.
- the fixing portion is disposed at one end of the fixed needle shaft along the axial direction thereof, and the connecting portion is disposed at the other end of the fixed needle shaft along the axial direction thereof.
- the fixing portion includes forming And an annular boss at the end of the fixed pin shaft, and a connecting post is disposed on an end surface of the annular boss facing away from the connecting portion.
- the fixing portion is disposed at a middle portion of the fixed needle shaft, and the connecting portion is two and respectively located at two ends of the fixed needle shaft along a direction of the axis line thereof.
- the fixing portion includes an annular boss formed on an outer wall of the fixed needle shaft, or a ring formed on an outer wall of the fixed needle shaft Groove.
- a probe connector comprising a fixing base provided with at least one connecting hole, further comprising the first aspect, the first possible implementation, the second possible implementation, and the third Possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, the sixth possible implementation manner, the seventh possible implementation manner, the eighth possible implementation manner, and the ninth possible
- the probe connector has a single needle, and the fixing portion of the fixed needle shaft of the single connector of the probe connector is mounted on the connecting hole of the fixing seat.
- the opening of the needle shaft accommodating cavity on the movable needle tube faces the fixed portion side of the fixed needle shaft, and the needle shaft is fixed during use of the probe connector.
- the fixing portion is fixedly connected with the related device in the electronic product, and the movable needle tube relatively slides relative to the fixed needle shaft, so the opening of the needle shaft receiving cavity of the movable needle tube faces the inner side of the electronic product, and the needle shaft capacity in the existing structure
- the first connector provided by the first aspect is less likely to enter dust and the like in the gap between the movable needle tube and the fixed needle shaft, thereby reducing the amount of dust and the like.
- the probability of accumulating dirt between the movable needle and the fixed needle shaft improves the reliability of the use of the probe connector.
- 1a is a schematic structural view of a conventional probe connector in the prior art
- Figure 1b is a schematic exploded view of the assembly of a conventional probe connector in the prior art
- 1c is a schematic cross-sectional view showing the structure of a single needle of a probe connector which is common in the prior art
- FIG. 2 is a cross-sectional view showing the structure of a single needle of a probe connector according to Embodiment 1 of the present invention
- FIG. 3 is a cross-sectional view showing the structure of another probe connector single needle according to Embodiment 1 of the present invention.
- FIG. 4 is a schematic exploded view showing the assembly of the probe connector according to Embodiment 2 of the present invention.
- Embodiment 1 is a diagrammatic representation of Embodiment 1:
- Embodiment 1 of the present invention provides a probe connector single needle.
- FIG. 2 is a schematic cross-sectional view showing a structure of a probe connector single needle 40 according to a first embodiment of the present invention.
- the probe connector single needle 40 includes a fixed needle shaft 43, a movable needle tube 41 and an elastic member 42, wherein:
- the movable needle tube 41 has a needle shaft receiving cavity 411 which is open at one end;
- the fixing needle shaft 43 is provided with a fixing portion 433 and a connecting portion 431.
- the connecting portion 431 extends from the opening of the needle shaft receiving cavity 411 into the needle shaft receiving cavity 411, so that the movable needle tube 41 and the fixed needle shaft 43 are slidably engaged;
- the portion 433 is configured to be mated with the connecting hole on the fixing base;
- the elastic member 42 is coupled to the fixed needle shaft 43 and the movable needle tube 41 to provide the movable needle tube 41 with a force acting in the direction of the axis of the movable needle tube 41 and away from the fixed needle shaft 43.
- the opening of the needle shaft receiving cavity 411 on the movable needle tube 41 faces the fixing portion 433 side of the fixed needle shaft 43 at the single connector 40 of the probe connector.
- the fixing portion 433 on the fixed needle shaft 43 is fixedly connected with the related device in the electronic product, and the movable needle tube 41 is relatively slid relative to the fixed needle shaft 43, so the opening of the needle shaft accommodating chamber 411 of the movable needle tube 41
- the probe connector single needle 40 provided in the present embodiment is in the movable needle tube 41 and fixed to the inner side of the electronic product, compared with the single connector of the probe connector in the outer structure of the needle shaft accommodating cavity in the prior art.
- the gap between the needle shafts 43 is less likely to enter dust and the like, and the probability of accumulation of dirt between the movable needle tube 41 and the fixed needle shaft 43 is lowered, and the reliability of use of the probe connector is improved.
- the fixed needle shaft 43 and the movable needle tube 41 can be prepared by a turning method using a brass alloy material; and in order to prevent the fixed needle shaft 43 and the movable needle tube 41 from being fixed The surface is oxidized to reduce its electrical conductivity.
- the outer layers of the fixed needle shaft 43 and the movable needle tube 41 are subjected to nickel plating and gold plating treatment, and the gold plating layer is covered with a nickel plating layer, and the nickel plating layer and the gold plating layer are selected according to different use occasions.
- Thickness preferably, the thickness of the nickel plating layer needs to be greater than 60 ⁇ m, and the thickness of the gold plating layer is greater than 4 ⁇ m; at the same time, in order to prevent the connecting portion 431 from coming out of the needle shaft receiving cavity 411, as shown in FIG. 2, the production process is required to pass.
- the riveting process forms a retracted structure at the opening of the pin shaft receiving cavity 411, and the end portion of the connecting portion 431 forms an expanded structure so that the two cooperate to prevent the connecting portion 431 from coming out of the needle receiving cavity 411.
- the bottom surface 412 of the needle shaft accommodating chamber 411 is flat and has an angle of less than or equal to 90 with the axial line of the movable needle tube 41.
- the movable needle tube 41 having the above structure, since the bottom surface 412 is flat and is between the axial line of the movable needle tube 41 When the angle is greater than 0° and less than 90°, the movable needle tube 41 is inclined under the force of the elastic member 42, and the contact area between the movable needle tube 41 and the fixed needle shaft 43 can be increased, and therefore, during the conduction process of the single needle
- the current can be mainly transmitted through the movable needle tube 41 and the fixed needle shaft 43 to reduce the current passing through the elastic member 42, thereby reducing the problem of excessive single-needle resistance and large voltage drop caused by the conductive member 42 being electrically conductive, and reducing the electronic product.
- the probability of occurrence of a momentary power failure ensures the stability of the use of a single needle.
- an insulating member made of an insulating material is disposed between the elastic member 42 and the bottom surface 412 of the needle shaft housing chamber 411.
- the fixed needle shaft 43 is provided with an auxiliary accommodating cavity 432 opening toward the bottom surface 412 of the needle shaft accommodating cavity 411, and the auxiliary accommodating cavity 432 is engaged with the needle shaft accommodating cavity 411.
- the elastic member 42 is housed.
- the elastic member 42 matched with the fixed pin shaft 43 of the above structure may have a length exceeding the length of the movable needle tube 41, and the elastic member 42 can obtain a stable elastic force and stroke in a case where the single needle volume is small and the installation space is limited.
- the resilient member 42 is a compression spring.
- one end of the pressure spring is in contact with the bottom surface 412 of the needle shaft accommodating chamber 411, and the other end is in contact with the fixed needle shaft 43 and is in a compressed energy storage state to provide the movable needle tube 41 along the axial line of the movable needle tube 41 and A force that faces away from the fixed needle shaft 43;
- the pressure spring can be made of a stainless steel material.
- the single needle can include a movable needle tube 41 or two movable needle tubes 41, as follows:
- the single needle includes a movable needle tube 41.
- the fixing portion 433 is disposed at one end of the fixed needle shaft 43 away from the connecting portion 431, and the connecting portion 431 is disposed at the other end of the fixed needle shaft 43.
- the fixing portion 433 includes an annular boss 4331 formed at an end of the fixed needle shaft 43, and a connecting post 4332 is disposed on an end surface of the annular boss 4331 facing away from the connecting portion.
- the connecting post 4332 is used for welding with a PCB or a wire.
- the specific shape may be a cylindrical shape as shown in FIG. 2, and the surface of the cylindrical connecting post 4332 may also be provided with a connecting structure such as a thread according to the connection requirement;
- the connecting post 4332 on the fixed needle shaft 43 can also be used as a bent columnar structure for use in a suitable mounting space.
- the single needle includes two movable needle tubes 41.
- the fixing portion 433 is located at the middle of the fixed needle shaft 43, and the connecting portion 431 is two, and respectively located along the axis line of the fixed needle shaft 43. Both ends of the direction.
- the fixing portion 433 includes an annular boss formed on the outer wall of the fixed needle shaft 43;
- the fixing portion may be an annular groove formed on the outer wall of the fixed needle shaft 13.
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- a second embodiment of the present invention provides a probe connector.
- the probe connector includes:
- a fixing seat 20 provided with a plurality of connecting holes 21;
- the probe connector single needle 40 provided in the first embodiment is further included, and the fixing portion 433 of the fixed needle shaft 43 of each single needle 40 is mounted to the connecting hole 21 of the fixing base 20.
- the fixing base 20 is made of an insulating material, such as a plastic material, and preferably made of high temperature nylon plus 30% glass fiber.
- the opening of the needle shaft accommodating chamber 411 on the movable needle tube 41 of the single needle 40 faces the fixed portion 433 side of the fixed needle shaft 43.
- the fixing portion 433 on the fixed needle shaft 43 is fixedly coupled with the related device in the electronic product, and the movable needle tube 41 is relatively slid with respect to the fixed needle shaft 43, so that the needle shaft of the movable needle tube 41 is accommodated.
- the opening of the cavity 411 faces the inner side of the electronic product, and the single needle 40 of the probe connector provided in the present embodiment is in the movable needle tube as compared with the probe connector of the outer side of the needle shaft receiving cavity in the prior art toward the outer side of the electronic product.
- the gap between the 41 and the fixed needle shaft 43 is less likely to enter dust and the like, and the probability of accumulation of dirt between the movable needle tube 41 and the fixed needle shaft 43 is lowered, and the reliability of use of the probe connector is improved.
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Abstract
一种探针连接器单针及探针连接器，该单针（40）包括固定针轴（43）、活动针管（41）和弹性件（42），活动针管具有一端开口的针轴容置腔（411）；固定针轴上设有固定部（433）和连接部（431），连接部自针轴容置腔的开口伸入针轴容置腔，以使活动针管与固定针轴滑动配合；固定部用于与固定座上的连接孔配合连接；弹性件用于为活动针管提供沿活动针管的轴心线并背离固定针轴方向的作用力。该单针在使用过程中，活动针管上的针轴容置腔的开口朝向电子产品内部一侧，在活动针管与固定针轴之间的缝隙内不易进入灰尘等杂物，降低了在活动针管与固定针轴之间积累污垢的概率，提高了探针连接器的使用可靠性。
Description
本申请涉及连接器领域，特别涉及一种探针连接器单针及探针连接器。
探针连接器的结构参见图1a所示，图1a为常见的探针连接器的结构示意图，探针连接器包括至少一个单针10和固定座20，单针10安装于固定座20上；其装配方式参见图1b和图1c所示，图1b是探针连接器的装配爆炸图、图1c是一个单针10的剖视图，单针10包括活动针轴101、固定针管103和弹性件102，此三个基本部件通过精密仪器铆压连接之后形成，其中，固定针管103内形成有容置腔，且同轴套设于活动针轴101和弹性件102的外侧，活动针轴101可沿固定针管103的轴线方向在固定针管103的容置腔内运动，弹性件102沿其轴线方向的两端分别与固定针管103的容置腔的底面和活动针轴101的底面接触、并处于压缩储能状态，弹性件102为活动针轴101提供沿活动针轴101的轴线并指向背离固定针管103的开口方向的作用力，在活动针轴101在固定针管103的容置腔内运动的过程中，活动针轴101的外壁和固定针管103的容置腔的内壁始终保持接触。
如图1b所示，探针连接器在使用过程中，固定针管103的B端需固定安装于所需连接的一个被连接件的PCB板30上，一般通过焊接方式将固定针管103的B端焊接于PCB板的焊盘上，另一个被连接件的导电端与活动针轴101的A端相接触、并将弹性件102压缩，例如在探针连接器应用于手机内部时，固定针管10的B端焊接于手机主板上，活动针轴101的A端与电池上的正负电极导电触点或天线上的金手指相接触；因活动针轴101具有一定的行程范围，所以其A端与B端之间的距离可调，可允许两个被连接件之间的间隙存在一定的装配误差，提高了探针连接器的容差率；电流或数据信号在固定针管103和活动针轴101之间流通，以将PCB板和被连接件电连接或信号连接。
现有结构的探针连接器在使用过程中，固定针管103的腔体的开口一般朝向电子产品的外部，且外露于电子产品的外壳之外，在活动针轴101相对于固定针管103运动时并压缩弹性件102时，固定针管103的腔体的开口处会露出间隙，受外界环境中的灰尘和水汽影响，长期使用后易在活动针轴101和固定针管103之间的间隙内积累污垢，导致活动针轴101运动卡滞、同时使单针电阻变大甚至产生不导通的问题，降低了探针连接器的使用可靠性。
发明内容
本申请提供了一种探针连接器单针及探针连接器，该结构的单针不易在其内部积累污垢，降低了因单针内部积累污垢而产生针轴运动卡滞和单针电阻增大问题的概率，提高了探针连接器的使用可靠性。
为实现上述目的，本发明提供如下的技术方案：
第一方面，提供一种探针连接器单针，包括固定针轴、活动针管和弹性件，其中，
所述活动针管具有一端开口的针轴容置腔；
所述固定针轴上设有固定部和连接部，所述连接部自所述针轴容置腔的开口伸入所述针轴容置腔，以使所述活动针管与所述固定针轴滑动配合；所述固定部用于与固定座上的连接孔配合连接；
所述弹性件与所述固定针轴以及所述活动针管连接以为所述活动针管提供沿所述活动针管的轴心线并背离所述固定针轴方向的作用力。
结合上述第一方面，在第一种可能的实现方式中，所述针轴容置腔的底面为平面且与所述活动针管的轴心线之间的夹角大于0°且小于90°。
该实现方式中，因所述针轴容置腔的底面为平面且与所述活动针管的轴心线之间的夹角大于0°且小于90°，活动针管在弹性件的作用力下产生倾斜，可增加活动针管和固定针轴之间的接触面积，因此，在该单针导电过程中，可使电流主要通过活动针管和固定针轴传导，减少了弹性件内通过的电流，可降低因弹性件导电而产生的单针电阻过大和电压大幅下降问题，减少了导致电子产品瞬间断电现象的产生，确保单针使用的稳定性。
结合第一种可能的实现方式，在第二种可能的实现方式中，所述弹性件与所述针轴容置腔的底面之间设有由绝缘材料制备的绝缘件。
该实现方式中，绝缘件可进一步减少通过弹性件传导的电流。
结合上述第一方面，在第三种可能的实现方式中，所述固定针轴设有开口朝向所述针轴容置腔的底面的辅助容置腔，所述辅助容置腔与所述针轴容置腔配合以容置所述弹性件。
该实现方式中，与该结构的固定针轴配套的弹性件长度可以超过活动针管的长度，在单针体积较小，安装空间受限的情况下，可使弹性件获得稳定的弹力和行程。
结合上述第一方面，在第四种可能的实现方式中，所述弹性件为压力弹簧。
结合上述第一方面、第一种可能的实现方式、第二种可能的实现方式、第三种可能的实现方式、第四种可能的实现方式，在第五种可能的实现方式中，所述固定部设置于所述固定针轴沿其轴心线方向上的一端，所述连接部设置于所述固定针轴沿其轴心线方向上的另一端。
结合上述第五种可能的实现方式，在第六种可能的实现方式中，所述固定部包括形成
于所述固定针轴端部的环形凸台，所述环形凸台背离所述连接部的端面上设有连接柱。
结合上述第一方面、第一种可能的实现方式、第二种可能的实现方式、第三种可能的实现方式、第四种可能的实现方式，在第七种可能的实现方式中，所述固定部设置于所述固定针轴的中部，所述连接部为两个且分别位于所述固定针轴沿其轴心线方向上的两端。
结合上述第七种可能的实现方式，在第八种可能的实现方式中，所述固定部包括形成于所述固定针轴外壁的环形凸台，或，形成于所述固定针轴外壁的环形凹槽。
第二方面，提供一种探针连接器，包括设有至少一个连接孔的固定座，，还包括如上述第一方面、第一种可能的实现方式、第二种可能的实现方式、第三种可能的实现方式、第四种可能的实现方式、第五种可能的实现方式、第六种可能的实现方式、第七种可能的实现方式、第八种可能的实现方式、第九种可能的实现方式所述的探针连接器单针，所述探针连接器单针的固定针轴的固定部安装于所述固定座的连接孔。
第一方面提供的探针连接器单针中，其活动针管上的针轴容置腔的开口朝向固定针轴的固定部一侧，在该探针连接器的使用过程中，固定针轴上的固定部与电子产品中的相关器件固定连接，活动针管相对于固定针轴进行相对滑动，所以该活动针管的针轴容置腔的开口朝向电子产品内侧，与现有结构中的针轴容置腔的开口朝向电子产品外侧的探针连接器单针相比，第一方面提供的探针连接器单针在活动针管与固定针轴之间的缝隙内不易进入灰尘等杂物，降低了在活动针管与固定针轴之间积累污垢的概率，提高了探针连接器的使用可靠性。
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1a是现有技术中常见的探针连接器的结构示意图；
图1b是现有技术中常见的探针连接器的装配爆炸示意图；
图1c是现有技术中常见的探针连接器单针的结构剖面示意图；
图2为本发明实施例一提供的探针连接器单针的结构剖面示意图；
图3为本发明实施例一提供的另一种探针连接器单针的结构剖面示意图；
图4为本发明实施例二提供的探针连接器的装配爆炸示意图。
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，所描述的实施例仅是本发明一部分实施例，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，都属于本发明保护的范围。
实施例一：
本发明实施例一提供了一种探针连接器单针。
参见图2，图2为本发明实施例一提供的探针连接器单针40的结构剖面示意图，探针连接器单针40包括固定针轴43、活动针管41和弹性件42，其中：
活动针管41具有一端开口的针轴容置腔411；
固定针轴43上设有固定部433和连接部431，连接部431自针轴容置腔411的开口伸入针轴容置腔411，以使活动针管41与固定针轴43滑动配合；固定部433用于与固定座上的连接孔配合连接；
弹性件42与固定针轴43以及活动针管41连接，以为活动针管41提供沿活动针管41的轴心线并背离固定针轴43方向的作用力。
本实施例提供的探针连接器单针40中，其活动针管41上的针轴容置腔411的开口朝向固定针轴43的固定部433一侧，在该探针连接器单针40的使用过程中，固定针轴43上的固定部433与电子产品中的相关器件固定连接，活动针管41相对于固定针轴43进行相对滑动，所以该活动针管41的针轴容置腔411的开口朝向电子产品内侧，与现有结构中的针轴容置腔的开口朝向电子产品外侧的探针连接器单针相比，本实施例提供的探针连接器单针40在活动针管41与固定针轴43之间的缝隙内不易进入灰尘等杂物，降低了在活动针管41与固定针轴43之间积累污垢的概率，提高了探针连接器的使用可靠性。
具体地，在固定针轴43和活动针管41的生产过程中，固定针轴43和活动针管41均可采用黄铜合金材料经车削加工方法制备；且为防止固定针轴43和活动针管41的表面氧化而降低其导电性能，固定针轴43和活动针管41的外层需进行镀镍和镀金处理，且镀金层覆盖镀镍层，镀镍层和镀金层应随不同的使用场合选择相应的厚度，优选地，镀镍层的厚度需大于60μm，镀金的厚度层大于4μm；同时，为防止连接部431从针轴容置腔411内脱出，如图2所示，生产过程中，需通过铆口工艺将针轴容置腔411的开口处形成内缩结构、连接部431的端部形成外扩结构，以使二者配合防止连接部431从针轴容置腔411内脱出。
如图2所示的一种优选方式中，针轴容置腔411的底面412为平面且与活动针管41的轴心线之间的夹角小于等于90°。
采用上述结构的活动针管41中，因底面412为平面且与活动针管41的轴心线之间的
夹角大于0°且小于90°，活动针管41在弹性件42的作用力下产生倾斜，可增加活动针管41和固定针轴43之间的接触面积，因此，在该单针的导电过程中，可使电流主要通过活动针管41和固定针轴43传导，减少了弹性件42内通过的电流，可降低因弹性件42导电而产生的单针电阻过大和电压大幅下降问题，减少了电子产品瞬间断电现象的产生概率，确保单针使用的稳定性。
另一种优选方式中，为进一步减少通过弹性件42传导的电流，弹性件42与针轴容置腔411的底面412之间设有由绝缘材料制备的绝缘件。
如图2所示的一种优选方式中，固定针轴43设有开口朝向针轴容置腔411的底面412的辅助容置腔432，辅助容置腔432与针轴容置腔411配合以容置弹性件42。
与上述结构的固定针轴43配套的弹性件42长度可以超过活动针管41的长度，在单针体积较小，安装空间受限的情况下，可使弹性件42获得稳定的弹力和行程。
如图2所示的一种优选方式中，弹性件42为压力弹簧。
具体地，该压力弹簧的一端与针轴容置腔411的底面412接触，另一端与固定针轴43接触，且处于压缩储能状态，以为活动针管41提供沿活动针管41的轴心线并背离固定针轴43方向的作用力；该压力弹簧可采用不锈钢材料制成。
该单针可包括一个活动针管41或两个活动针管41，具体实现方式如下：
实现方式一，如图2所示，该单针包括一个活动针管41，固定部433设置于固定针轴43背离连接部431的一端，连接部431设置于固定针轴43的另一端。
具体地，如图2所示，固定部433包括形成于固定针轴43端部的环形凸台4331，环形凸台4331背离连接部的端面上设有连接柱4332。
该连接柱4332用于与PCB或导线焊接，具体形状可采用如图2中所示的圆柱状，该圆柱状连接柱4332的表面也可根据连接需求设置螺纹等连接结构；
固定针轴43上的连接柱4332除图2所示的形状外，也可采用折弯的柱状结构，以用于相适应的安装空间内。
实现方式二，如图3所示，该单针包括两个活动针管41，固定部433位于固定针轴43的中部，连接部431为两个，且分别位于固定针轴43沿其轴心线方向上的两端。
具体地，如图3所示，固定部433包括形成于固定针轴43外壁的环形凸台；
此外，该固定部还可为形成于固定针轴13外壁的环形凹槽。
实施例二：
本发明实施例二提供了一种探针连接器，如图4所示，该探针连接器包括：
设有多个连接孔21的固定座20；
还包括实施例一提供的探针连接器单针40，每个单针40的固定针轴43的固定部433安装于固定座20的连接孔21。
具体地，该固定座20采用绝缘材料制成，如采用塑胶材料制成，优选地，可采用高温尼龙加30％玻璃纤维制成。
与实施例一同理，本实施例提供的探针连接器中，其单针40的活动针管41上的针轴容置腔411的开口朝向固定针轴43的固定部433一侧，在该探针连接器的使用过程中，固定针轴43上的固定部433与电子产品中的相关器件固定连接，活动针管41相对于固定针轴43进行相对滑动，所以该活动针管41的针轴容置腔411的开口朝向电子产品内侧，与现有结构中的针轴容置腔的开口朝向电子产品外侧的探针连接器相比，本实施例提供的探针连接器的单针40在活动针管41与固定针轴43之间的缝隙内不易进入灰尘等杂物，降低了在活动针管41与固定针轴43之间积累污垢的概率，提高了探针连接器的使用可靠性。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。
Claims (10)
- 一种探针连接器单针，其特征在于，包括固定针轴、活动针管和弹性件，其中，所述活动针管具有一端开口的针轴容置腔；所述固定针轴上设有固定部和连接部，所述连接部从所述针轴容置腔的开口伸入所述针轴容置腔，以使所述活动针管与所述固定针轴滑动配合；所述固定部用于与固定座上的连接孔配合连接；所述弹性件与所述固定针轴以及所述活动针管连接以为所述活动针管提供沿所述活动针管的轴心线并背离所述固定针轴方向的作用力。
- 根据权利要求1所述的探针连接器单针，其特征在于，所述针轴容置腔的底面为平面且与所述活动针管的轴心线之间的夹角大于0°且小于90°。
- 根据权利要求2所述的探针连接器单针，其特征在于，所述弹性件与所述针轴容置腔的底面之间设有由绝缘材料制备的绝缘件。
- 根据权利要求1所述的探针连接器单针，其特征在于，所述固定针轴设有开口朝向所述针轴容置腔的底面的辅助容置腔，所述辅助容置腔与所述针轴容置腔配合以容置所述弹性件。
- 根据权利要求1所述的探针连接器单针，其特征在于，所述弹性件为压力弹簧。
- 根据权利要求1-5任一项所述的探针连接器单针，其特征在于，所述固定部设置于所述固定针轴沿其轴心线方向上的一端，所述连接部设置于所述固定针轴沿其轴心线方向上的另一端。
- 根据权利要求6所述的探针连接器单针，其特征在于，所述固定部包括形成于所述固定针轴端部的环形凸台，所述环形凸台背离所述连接部的端面上设有连接柱。
- 根据权利要求1-5任一项所述的探针连接器单针，其特征在于，所述固定部设置于所述固定针轴的中部，所述连接部为两个且分别位于所述固定针轴沿其轴心线方向上的两端。
- 根据权利要求8所述的探针连接器单针，其特征在于，所述固定部包括形成于所述固定针轴外壁的环形凸台，或，形成于所述固定针轴外壁的环形凹槽。
- 一种探针连接器，包括设有至少一个连接孔的固定座，其特征在于，还包括如权利要求1-10任一项所述的探针连接器单针，所述探针连接器单针的固定针轴的固定部安装于所述固定座的连接孔。
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| CN110275080B (zh) * | 2019-07-22 | 2024-05-07 | 丰宾电子科技股份有限公司 | 一种铝电解电容钉卷机导针下钉检测设备 |
| CN113555713A (zh) * | 2020-04-23 | 2021-10-26 | 上海莫仕连接器有限公司 | 导电元件及电连接器 |
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