WO2015143988A1 - 一种接线端子 - Google Patents

一种接线端子 Download PDF

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Publication number
WO2015143988A1
WO2015143988A1 PCT/CN2015/074002 CN2015074002W WO2015143988A1 WO 2015143988 A1 WO2015143988 A1 WO 2015143988A1 CN 2015074002 W CN2015074002 W CN 2015074002W WO 2015143988 A1 WO2015143988 A1 WO 2015143988A1
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WO
WIPO (PCT)
Prior art keywords
terminal
terminal according
housing
shells
connecting rod
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Application number
PCT/CN2015/074002
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English (en)
French (fr)
Inventor
雷毅
任志昊
李正强
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成都曼德莱斯电联接有限公司
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Publication of WO2015143988A1 publication Critical patent/WO2015143988A1/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
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts

Definitions

  • the invention relates to a low-voltage switch device and an auxiliary device for a control device, in particular to an electrical connection device for wiring a secondary device of a power system.
  • the existing terminal is formed by assembling two left and right housings, and the two housings are generally connected by an interference fit of an inverted cone and an inverted tapered hole or by a snap fastening.
  • the inverted cone fit and the snap fit require a lot of space for the part or housing, and the snap fit requires a more complex mold structure to achieve. Both of these fixed methods are costly.
  • the two elastic legs on the existing terminal are all disposed on the same casing, and the two sides of the fixed buckle are different, so that the shapes of the left and right casings are inconsistent, so it is necessary to make a set of molds for each of the two casings. The production cost is high.
  • the present invention provides a terminal block, wherein the housings are locked by simple interlocking locks, and the structure is simple, the occupied space is small, and the utility model is convenient and applicable.
  • a terminal block comprising two housings that are put together, and the two housings are provided with locking devices that are combined with each other.
  • the locking device is a mortise buckle formed on the two casings and fastened to each other.
  • the terminal of the terminal is provided with a retaining device for defining the terminal insertion position and preventing the terminal from falling.
  • the terminal end is provided with an annular boss which is fastened in the retaining device on the housing.
  • the terminal includes an insulating member and a conductive member, and the annular boss is disposed on the insulating member.
  • the terminal further includes a shield coupled to the housing by a rotating connecting rod.
  • the pivoting link is snapped into a securing slot in the housing.
  • both end faces of the rotating connecting rod are spherical.
  • the fixing groove has two steps, wherein the step end surface of the lower layer is hemispherical, and the step surface of the upper layer is a gradually increasing arc shape.
  • the housing includes a body and a supporting elastic leg, wherein the body is a fully symmetrical structure, and a lower portion thereof is provided with a post or a hole for reinforcing the deformation of the supporting elastic leg.
  • the invention has the advantages that: the terminal block having the above structure, the left and right housings are provided with the mating Taiji buckles, the biting force is strong, and the falling is not easy to fall off, because the structure is simple, the occupied space is small, and the manufacturing process is relatively existing.
  • the terminals are also simpler.
  • the two sides of the ERA buckle have the same shape, and the elastic legs are respectively disposed on the left and right shells, so that the shape of the whole left and right shells are also uniform, so that it is not necessary to prepare different molds for the left and right shells, which simplifies the equipment and reduces the cost.
  • Figure 1 shows the internal structure of the terminal block.
  • FIG. 2 is an enlarged view of the ERA buckle of FIG. 1.
  • Figure 3 is a diagram of the back-off device.
  • Figure 4 is a structural view of the device for retreating.
  • Figure 5 is a structural view of the terminal block with the shield attached.
  • Figure 6 is a structural view of the shield.
  • Fig. 7 is an enlarged view of a portion B in Fig. 5;
  • Figure 8 is a structural view of the terminal.
  • Figure 9 is a diagram of a terminal block of a symmetrical structure.
  • a terminal block includes two housings 1 which are assembled together, and the two housings 1 are provided with interlocking and locking devices, and the locking device is disposed at The two shells 1 are fastened to each other to form a ERA 2 which comprises one or more bosses 21 and one or more grooves 22, and the cross section of the bosses 21 and the grooves 22 It is composed of one or more smooth curves.
  • a ERA 2 which comprises one or more bosses 21 and one or more grooves 22, and the cross section of the bosses 21 and the grooves 22 It is composed of one or more smooth curves.
  • the housing 1 of the terminal is provided with a stop device 4,
  • the terminal 3 is provided with an annular boss 5 which is fastened in a retaining device 4 on the housing 1, the terminal 3 comprising an insulating member 31 and a conductive member 32, the ring
  • the boss 5 is disposed on the insulating member 31, and is adjacent to the conductive member 32.
  • the insertion position of the terminal 3 can be defined and the terminal 3 can be prevented from coming off.
  • the retaining device 4 can be a circular arc, a square, a taper or the like.
  • the terminal further includes a protective cover 7 connected to the housing 1 by rotating the connecting rod 6 , and the rotating connecting rod 6 is fastened to the fixed connecting slot 20 on the housing 1 .
  • the rotating connecting rod 6 adjusts the opening and closing of the protective cover 7 through the fixed connecting groove 20 and prevents the protective cover 7 from falling off; the two end faces 61 of the rotating connecting rod 6 are spherical, and the fixed connecting groove 20 has two layers of different heights.
  • a step in which the lower step end surface 62 is hemispherical, and the upper step surface 63 is a gradually increasing arc shape.
  • the spherical surface at both ends of the rotary connecting rod 6 provided on the shield 7 and the fixed connecting groove 20 provided on the casing 1 are provided.
  • the upper step surface has interference, and does not interfere with the lower step surface of the fixed connection groove 20 provided on the casing 1; the both end faces 61 of the rotary connecting rod 6 provided on the shield 7 are caused to slide on the arc surface of the upper step 63
  • the fixed connecting groove 20 provided on the casing 1 is slightly elastically deformed, and the protective cover 7 is elastically deformed by itself to facilitate the sliding of the connecting rod into the fixed connecting groove 20 provided on the casing 1, due to the fixed connecting groove 20 provided on the casing 1.
  • the steps have high and low , So that rotation of the shield connector 6 provided on the need to 7 prolapse external force is applied, thus automatically prevented protective cover 7 detached from the housing 1.
  • the housing 1 includes a body 11 and a supporting elastic leg 12, wherein the body 11 is a fully symmetrical structure, and a lower portion thereof is provided with a post 13 for reinforcing the deformation of the supporting elastic leg 12 or And the hole 14; the pillar 13 for reinforcing the deformation of the elastic leg 12 serves to strengthen the support by inserting the hole 14; when the two casings 1 are fastened, it is a terminal of a fully symmetrical structure, so only one opening is required Mold manufacturing saves production costs.

Landscapes

  • Casings For Electric Apparatus (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Abstract

一种接线端子，包括拼合在一起的两块壳体（1），两块壳体上设置有相互配合的锁扣装置（2）以及防护装置（7），其中锁扣装置（2）为两块壳体（1）上设置的相互配合的太极扣（2），太极扣（2）两边形状一致，弹性腿（12）分别对称的设置在左右两块壳体（1）上。该接线端子结构和制作工艺简单，制作成本低。

Description

一种接线端子 技术领域
本发明涉及一种低压开关设备和控制设备用辅助电器,尤其是一种用于电力系统二次设备接线用的电气连接装置。
背景技术
现有的接线端子由左右两块壳体拼合而成，两块壳体之间一般使用倒锥和倒锥孔的干涉配合或者使用卡扣扣合的方式连接固定。倒锥配合和卡扣配合需要占据零件或壳体的许多空间，并且卡扣扣合还需更复杂的模具结构来实现。使得这两种固定方式成本都较高。现有的接线端子上的两个弹性腿都设置在同一壳体上，用于连接固定的锁扣两边也不一样，使得左右壳体形状不一致，所以必须为两块壳体各自制作一套模具，生产成本高。
发明内容
针对上述存在的技术问题，本发明提供一种接线端子，其壳体之间利用相互配合的简易锁扣进行锁闭，结构简单，占用空间小，方便适用。
为了解决上述技术问题，本发明采用的技术方案为：一种接线端子，该接线端子包括拼合在一起的两块壳体，这两块壳体上设置有相互配合合成的锁扣装置。
作为一种优选，所述锁扣装置为设置在两壳体上，相互扣紧贴合后形成的太极扣。
作为一种优选，该接线端子的壳体上设置有止退装置,可限定接线端头插入位置及防止接线端头掉落。
作为一种优选，所述接线端头上设置有环形凸台，该环形凸台扣合在壳体上的止退装置中。
作为一种优选，所述接线端头包括绝缘部件和导电部件，所述环形凸台设置在绝缘部件上。
作为一种优选，该接线端子还包括通过转动连接杆与壳体连接的防护罩。
作为一种优选，所述转动连接杆位扣合在壳体上的固定槽中。
作为一种优选，所述转动连接杆的两端面为球面。
作为一种优选，所述固定槽带有两层台阶，其中，低层的台阶端面为半球形，高层的台阶面为逐渐升高的弧形。
作为一种优选，所述壳体包括本体和一支撑弹性腿，其中，本体为全对称结构，其下部设置有用于加强支撑弹性腿变形的柱子或孔。
本发明的有益之处在于：具有上述结构的接线端子，左右壳体上设置有相互配合的太极扣，其咬合力强，不易脱落，因结构简单，其占用空间很小，制作工艺相对现有的接线端子也更为简单。太极扣两边形状一致，弹性腿分别设置在左右两块壳体上，使得整个左右壳体形状也一致，这样就不需要为左右两块壳体准备不同的模具，简化了设备，降低了成本。
附图说明
图1为接线端子的内部结构图。
图2为图1中太极扣的放大图。
图3为止退装置配合图。
图4为止退装置的结构图。
图5为配装好防护罩后接线端子的结构图。
图6为防护罩的结构图。
图7为图5中的B部放大图。
图8为接线端头的结构图。
图9为对称结构的接线端子图。
具体实施方式
下面结合附图，对本发明作详细的说明。
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
如图1和图2所示，一种接线端子，包括拼合在一起的两块壳体1，这两块壳体1上设置有相互配合合成的锁扣装置,所述锁扣装置为设置在两壳体1上，相互扣紧贴合后形成的太极扣2，该太极扣2包含一个或多个凸台21以及一个或多个凹槽22，且凸台21和凹槽22的横截面由一个或多个光滑曲线构成，太极扣2扣合时，其凸台21和凹槽22相互贴合，设置的干涉余量可防止脱扣。
见图3、图4和图8，作为一种优选，该接线端子的壳体1上设置有止退装置4，所 述接线端头3上设置有环形凸台5，该环形凸台5扣合在壳体1上的止退装置4中，所述接线端头3包括绝缘部件31和导电部件32，所述环形凸台5设置在绝缘部件31上，并且靠近导电部件32，可限定接线端头3插入位置以及防止接线端头3脱落，止退装置4可为圆弧型、方形及锥形等。
参见图5至图7，作为本案另一实施例，该接线端子还包括通过转动连接杆6与壳体1连接的防护罩7，转动连接杆6扣合在壳体1上的固定连接槽20中，转动连接杆6通过固定连接槽20对防护罩7进行开闭调节以及防止防护罩7脱落；所述转动连接杆6的两端面61为球面，固定连接槽20带有高低不同的两层台阶，其中，低层的台阶端面62为半球形，高层的台阶面63为逐渐升高的弧形，防护罩7上设置的转动连接杆6两端的球面和壳体1上设置的固定连接槽20的高层台阶面有干涉，和壳体1上设置的固定连接槽20的低层台阶面没有干涉；防护罩7上设置的转动连接杆6的两端面61通过在高层台阶63的弧面上滑动致使壳体1上设置的固定连接槽20轻微弹性变形，及防护罩7自身弹性变形，以便于连接杆滑入壳体1上设置的固定连接槽20，由于壳体1上设置的固定连接槽20的台阶具有高低落差，致使防护罩7上设置的转动连接杆6需在施加外力情况下才能脱出，如此可防止防护罩7从壳体1上自动脱落。
作为上述实施例的改进，如图9，所述壳体1包括本体11和一支撑弹性腿12，其中，本体11为全对称结构，其下部设置有用于加强支撑弹性腿12变形的柱子13或/和孔14；加强支撑弹性腿12变形的柱子13以插入孔14的方式起到加强支撑的目的；当两壳体1扣合后，即为全对称结构的接线端子，因此只需开一个模具制造，节约生产成本。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种接线端子，其特征在于：该接线端子包括拼合在一起的两块壳体，这两块壳体上设置有相互配合合成的锁扣装置。
  2. 如权利要求1所述的接线端子，其特征在于：所述锁扣装置为设置在两壳体上，相互扣紧贴合后形成的太极扣。
  3. 如权利要求1所述的接线端子，其特征在于：该接线端子的壳体上设置有止退装置。
  4. 如权利要求3所述的接线端子，其特征在于：所述接线端头上设置有环形凸台，该环形凸台扣合在壳体上的止退装置中。
  5. 如权利要求4所述的接线端子，其特征在于：所述接线端头包括绝缘部件和导电部件，所述环形凸台设置在绝缘部件上。
  6. 如权利要求1所述的接线端子，其特征在于：该接线端子还包括通过转动连接杆与壳体连接的防护罩。
  7. 如权利要求6所述的接线端子，其特征在于：所述转动连接杆扣合在壳体上的固定槽中。
  8. 如权利要求6或7所述的接线端子，其特征在于：所述转动连接杆的两端面为球面。
  9. 如权利要求7所述的接线端子，其特征在于：所述固定槽带有两层台阶，其中，低层的台阶端面为半球形，高层的台阶面为逐渐升高的弧形。
  10. 如权利要求1所述的接线端子，其特征在于：所述壳体包括本体和一支撑弹性腿，其中，本体为全对称结构，其下部设置有用于加强支撑弹性腿变形的柱子或孔。
PCT/CN2015/074002 2014-03-26 2015-03-11 一种接线端子 WO2015143988A1 (zh)

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CN104022367B (zh) * 2014-03-26 2016-04-13 成都曼德莱斯电联接有限公司 一种接线端子
CN108767665B (zh) * 2018-06-08 2024-04-02 杭州鸿雁电力电气有限公司 一种接线排护罩

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US20090025974A1 (en) * 2007-07-24 2009-01-29 Haijun Chen Shield Box
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CN102709718A (zh) * 2012-05-24 2012-10-03 上海友邦电气(集团)股份有限公司 一种继电耦合型接线端子的改进结构
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