WO2012016420A1 - 一种漆包线接线端子 - Google Patents

一种漆包线接线端子 Download PDF

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Publication number
WO2012016420A1
WO2012016420A1 PCT/CN2011/000853 CN2011000853W WO2012016420A1 WO 2012016420 A1 WO2012016420 A1 WO 2012016420A1 CN 2011000853 W CN2011000853 W CN 2011000853W WO 2012016420 A1 WO2012016420 A1 WO 2012016420A1
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WO
WIPO (PCT)
Prior art keywords
enameled wire
row
conductive
insulating plate
welding
Prior art date
Application number
PCT/CN2011/000853
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English (en)
French (fr)
Inventor
马雷克
Original Assignee
特富特科技(深圳)有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 特富特科技(深圳)有限公司 filed Critical 特富特科技(深圳)有限公司
Priority to PL11814004T priority Critical patent/PL2602871T3/pl
Priority to EP11814004.5A priority patent/EP2602871B1/en
Priority to US13/814,622 priority patent/US8951077B2/en
Publication of WO2012016420A1 publication Critical patent/WO2012016420A1/zh

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02Soldered or welded connections
    • H01R4/029Welded connections
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member

Definitions

  • the present invention relates to a wire connection terminal, and more particularly to a terminal structure for an enameled wire connection.
  • the winding heads of the respective windings are often connected to the external wires by means of terminal pressing.
  • welding shields such as soldering and soldering. Since there are still gaps in the way of pressing the terminals, electrical corrosion cannot be avoided during operation, and the increase in impedance and the looseness of the terminals cannot be completely avoided. Coupled with the long-term impact of high-frequency vibration, the joint is easy to loose, resulting in increased impedance, running heat, increased energy consumption and other adverse effects.
  • the invention solves the problem that the enameled wire lead-out wiring in the prior art is not strong in impedance, and proposes an enameled wire terminal which has a low impedance and a low impedance.
  • the technical proposal of the present invention is to design an enameled wire terminal, which comprises: an insulating plate, a pair of conductive rows respectively fixed at two ends of the insulating plate; and one end of the conductive row is provided for welding external wires.
  • the wire welding hole, the other end of the conductive row is provided with at least one enameled wire welding hole for welding the enameled wire.
  • the conductive row is horizontally mounted; the insulating plate is disposed as a recessed step at a position in contact with the conductive row, and the shape of the recessed step conforms to the conductive row.
  • the conductive row is provided with a screw through hole at a position corresponding to the recessed step, and the fixing screw is fixed to the insulating plate through the screw through hole. A screw fastening rubber is applied between the fixing screw and the insulating plate.
  • the conductive row is installed sideways; the insulating plate is provided with a concave step at a position in contact with the conductive row, and the shape of the concave step conforms to the conductive row.
  • the conductive row is provided with a screw at a position corresponding to the recessed step , . , , , ⁇ L m . ⁇ 3 , . Hole, ⁇ ⁇
  • the screw through hole will be electrically conductively fixed on the insulating plate.
  • the fixing screw ⁇ insulating plate ⁇ 1 has a thread fastening glue.
  • the above-mentioned conductive row can be made of copper or aluminum, or a copper-aluminum transition can be used.
  • a copper-aluminum transition row is used, the end of the connection hole near the external cable is made of copper, and the end of the hole adjacent to the enameled wire is made of aluminum.
  • the present invention has a significantly lower impedance than the prior art.
  • the tensile strength of the general solder joint is greater than 2000N.
  • the solder joints isolate the air and maintain good electrical performance and stability after long-term operation. It is especially suitable for high-power, high-frequency multi-conductor electrical devices (such as multi-winding reactors) that operate in high-frequency inverters. ), can work for a long time in the case of high-frequency vibration without loosening to maintain the integrity of the terminal, the terminal structure connection is stable and reliable, avoiding the possibility of short-circuiting caused by direct contact between the two ends of the winding.
  • Figure 1 is a perspective view of a first embodiment of the present invention
  • Figure 3 is a front elevational view of the first embodiment of the present invention.
  • FIG. 4 is an external view of an insulating plate in a first embodiment of the present invention.
  • Figure 5 is a plan view of a first embodiment of the present invention.
  • Figure 6 is a perspective view of a second embodiment of the present invention.
  • Figure ⁇ is a front view of a second embodiment of the present invention.
  • Figure 8 is a side view of a second embodiment of the present invention.
  • Figure 9 is a plan view of a second embodiment of the present invention. detailed description
  • an enameled wire terminal of the present invention includes: an insulating plate 2, a pair of conductive rows 1 respectively fixed at two ends of the insulating plate; and a conductive wire 1a for welding the external wires at one end of the conductive row, conductive The other end of the row is provided with at least one enameled wire elastic hole 4a for welding the enameled wire 4. Only one enameled wire 4 is welded into the enameled wire welding hole 4a, and the number of enameled wire welding holes corresponds to the number of enameled wires to be welded.
  • the wire welding hole l a and the enameled wire welding hole 4a are clearly shown in Fig. 2.
  • Both of the holes are through holes of the conductive row, and the enameled wire 4 is inserted from the bottom to the enameled wire welding hole 4a, and then welded firmly.
  • the insulating plate 2 can be fixed to the outer casing of the fixed enameled wire.
  • the conductive row 1 is horizontally mounted with two conductive rows parallel to each other.
  • the insulating plate 2 is provided with a recessed step 5 at a position in contact with the conductive row 1, and the shape of the recessed step corresponds to the conductive row.
  • the conductive row 1 is provided with a screw through hole 3a at a position corresponding to the recessed step 5, and the fixing screw 3 passes through the screw through hole to fix the conductive row 1 on the insulating plate 2.
  • the arrangement is to define the relative position of the insulating plate 2 and the conductive row 1.
  • the small and medium-sized terminals can be fixed by a fixing screw 3, and the large terminal is fixed.
  • the number of fixing screws 3 is increased correspondingly, depending on the size of the conductive strips.
  • Figure 3 and Figure 5 show the comparison J and the view, which can be seen from the figure, the row 1 and the recess are provided with screw through holes 3a, and the fixing screws 3 pass through the screw through holes to fix the conductive row 1 on the insulating plate 2.
  • the conductive row 1 is bilaterally symmetrical, and a fixing screw 3 is attached to a place in contact with the insulating plate 2, and on the outside of the fixing screw 3, an enameled wire welding hole 4a and an enameled wire 4 are provided.
  • the conductive row 1 is mounted sideways; the two conductive rows are parallel to each other.
  • the insulating plate 2 is provided with a recessed step 5 at a position in contact with the conductive row 1, and the shape of the recessed step coincides with the conductive row.
  • the conductive row 1 is provided with a screw through hole 3a at a position corresponding to the recessed step 5, and the fixing screw 3 passes through the screw through hole to fix the conductive row 1 to the insulating plate 2.
  • the arrangement is such that the relative positions of the insulating plate 2 and the conductive row 1 are defined.
  • FIGS 7, 8, and 9 are a front view, a side view, and a top view, respectively, of the second embodiment.
  • the main difference between the second embodiment and the first embodiment is that the conductive row 1 is changed from horizontal mounting to side mounting.
  • the fixing screw 3 is fixed to the both ends of the insulating plate 2 by the vertical direction, and the enameled wire 4 is welded and fixed from the bottom to the upper through the enameled wire welding hole 4a.
  • the fixing screw 3 fixes the conductive row 1 at both ends of the insulating plate 2 from the horizontal direction, and the enamel wire 4 is welded and fixed by the outer side to the inner side by the ii enameled wire welding hole 4a. .
  • the fixing screw 3 and the insulating plate 2 are coated with a thread fastening glue.
  • Thread fastening glue is used 150.
  • C thread glue is fixed, the two terminals and the insulating sheet are fixed as a whole, can not be easily displaced and deformed, and can withstand high frequency vibration for a long time without loosening, and avoid the possibility of short circuit caused by direct contact of the insulating board 2. .
  • the conductive row 1 is made of copper; when the winding coil is made of aluminum and the external wire is copper, it is conductive when considering the factors such as current and heat.
  • Row 1 can also use aluminum row, or copper row can be used to weld copper row and aluminum wire through copper-aluminum solder wire; when the winding wire is made of aluminum, and the outer wire is copper, the conductive row 1 is copper-aluminum transition.
  • the row is made of copper at one end close to the external cable wiring hole la, and is made of aluminum at one end near the enameled wire welding hole 4a.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Description

一种漆包线接线端子 技术领域
本发明涉及导线连接端子, 尤其涉及一种用于漆包线连接的端子结构 背景技术
大功率电抗器、 电感、 电机等设备中带有漆包线制成的绕组。 在现有技术中, 各绕组 的出线头往往通过端子压制的方式与外部导线进行连接。在大电流, 大功率的工作环境下, 对多条漆包线进行压制与焊接时, 由于端子内部为密封, 所以往往会出现虚焊, 漏焊等焊 接盾量问题。 由于压制端子的方式依然存在空隙, 在运行过程中无法避免发生电气腐蚀, 阻抗增大和端子的松动无法完全避免。 再加上长期受高频振动的影响, 接头易松脱, 造成 阻抗加大, 运行发热, 能耗上升等等不利影响。
现在许多公司为降低成本, 往往使用铝线代替铜线, 线圏绕组使用铝材,而外引线使 用铜材, 这样就带来了新的问题。 由于铝线焊接的难度较大, 焊接时容易氧化, 采用传统 的端子压制焊接的方式, 往往出现焊接质量差, 阻抗较大的现象, 这种现象在多股铝导线 (〉4股)尤为明显。铜和铝是两种不同的金属,将它们简单连接在一起会发生电化学反应。 时间稍长, 连接处接触电阻会增大、 发热, 造成电路时通时断, 电压忽高忽低, 甚至引起 火灾。 通常的解决方案为: 通过钢铝焊锡丝, 将多股铜芯电缆与铝线焊接连接起来, 这样 的处理依然会存在阻抗较高的情况, 而且铜铝直接接触并暴露在空气中, 会存在电化腐蚀 的风险。 发明内容
本发明是要解决现有技术中漆包线引出接线不牢靠阻抗较大的问题, 提出一种接线牢 靠阻抗低的漆包线接线端子。
为解决上述技术问题, 本发明提出的技术方案是设计一种漆包线接线端子, 其包括: 绝缘板、 分别固定在绝缘板两端的一对导电排; 所述导电排一端设有用以焊接外部导线的 导线焊接孔, 导电排另一端设有至少一个用以焊接漆包线的漆包线焊接孔。
所述漆包线悍接孔内只焊接一根漆包线, 漆包线焊接孔的数量与需要焊接的漆包线的 根数相互对应。
在一个实施例中, 所述导电排水平安装; 所述绝缘板在与导电排接触的地方设为凹陷 台阶, 该凹陷台阶的形状与导电排相符。 所述导电排在与凹陷台阶对应的地方设有螺丝通 孔, 固定螺丝穿过螺丝通孔将导电排固定在绝缘板上。 所述固定螺丝与绝缘板之间涂有螺 紋紧固胶。
在另一个实施例中, 所述导电排侧立安装; 所述绝缘板在与导电排接触的地方设为凹 陷台阶, 该凹陷台阶的形状与导电排相符。 所述导电排在与凹陷台阶对应的地方设有螺丝 , . ,, , ^ L m . Χ3, . 孔, 疋^ 牙 螺丝通孔将导电排固疋 绝缘板上。 所述固疋螺丝 ^絕緣板^ 1 有 螺紋紧固胶。
针对不同使用场所, 上述导电排可以采用铜排也可以采用铝排, 还可以采用铜铝过渡 排。 在采用铜铝过渡排时, 其在靠近外接电缆线线连接孔的一端为铜材, 其在靠近漆包线 焊接孔的一端为铝材。
与现有技术相比, 本发明具有明显的低阻抗。 根据焊锡丝供应商提供的焊锡丝物理特 性, 一般焊接点的抗拉强度大于 2000N。 而且焊点隔离空气, 能够在长期运行后依然保持 良好的电气性能与稳定性, 尤其适合使用在高频逆变器等工作在大功率, 高频率的多导线 的电气器件 (例如多绕组电抗器) , 能长期工作在高频震动的情况下不松脱保持端子的一 体性, 端子结构连接稳固可靠, 避免了端子变形导致绕组两端直接接触而发生短路的可能 性。 附图说明
下面结合附图和实施例对本发明作出详细的说明, 其中:
图 1为本发明第一实施例的立体外观图;
图 2为本发明第一实施例中单个导电排的外观图;
图 3为本发明第一实施例的正视图;
图 4为本发明第一实施例中绝缘板的外观图;
图 5为本发明第一实施例的俯视图;
图 6为本发明第二实施例的立体外观图;
图 Ί为本发明第二实施例的正视图;
图 8为本发明第二实施例的侧视图;
图 9为本发明第二实施例的俯视图。 具体实施方式
参看图 1 , 本发明公开的漆包线接线端子, 其包括: 绝缘板 2、 分别固定在绝缘板两 端的一对导电排 1 ; 所述导电排一端设有用以焊接外部导线的导线焊接孔 l a , 导电排另一 端设有至少一个用以焊接漆包线 4的漆包线彈接孔 4a。 所述漆包线焊接孔 4a内只焊接一 根漆包线 4 , 漆包线焊接孔的数量与需要焊接的漆包线的根数相互对应。 图 2中清晰地展 示了导线焊接孔 l a和漆包线焊接孔 4a。 这两种孔皆为导电排上钻的通孔, 漆包线 4由下 往上插在漆包线焊接孔 4a 中, 然后焊接牢固。 绝缘板 2可与固定漆包线的外壳固定在一 起。
' 在图 1至图 5示出的第一实施例中, 所述导电排 1水平安装 两块导电排相互平行。 所述绝缘板 2在与导电排 1接触的地方设为凹陷台阶 5 ,该凹陷台阶的形状与导电排相符。 所述导电排 1在与凹陷台阶 5对应的地方设有螺丝通孔 3a , 固定螺丝 3穿过螺丝通孔将导 电排 1固定在绝缘板 2上。 参看图 4示出的第一实施例绝缘板的外观图, 如此设置是为了 限定绝缘板 2与导电排 1的相对位置, 中小型端子依靠一个固定螺丝 3就能把两者固定牢 靠, 大型端子相应增加固定螺丝 3的数量, 这取决于导电排的大小。 图 3、 图 5分别为较 J 和 视图, 从图 能 出, 所述 排 1 与凹陷 设 有螺丝通孔 3a , 固定螺丝 3穿过螺丝通孔将导电排 1固定在绝缘板 2上。 导电排 1是左右 对称的, 在与绝缘板 2接触的地方安装固定螺丝 3, 在固定螺丝 3的外侧, 是漆包线焊接 孔 4a和漆包线 4。
在图 6至图 9示出的第二实施例中, 所述导电排 1侧立安装; 两块导电排相互平行。 所述绝缘板 2在与导电排 1接触的地方设为凹陷台阶 5 ,该凹陷台阶的形状与导电排相符。 所述导电排 1在与凹陷台阶 5对应的地方设有螺丝通孔 3a , 固定螺丝 3穿过螺丝通孔将导 电排 1固定在绝缘板 2上。 参看图 6示出的第二实施例绝缘板的外观图, 如此设置是为了 限定绝缘板 2与导电排 1的相对位置, 中小型端子依靠一个固定螺丝 3就能把两者固定牢 靠, 大型端子相应增加固定螺丝 3的数量, 这取决于导电排的大小。 图 7、 8、 9、 分别为 第二实施例正视图、 侧视图和俯视图。 从图中可以看出, 第二实施例与第一实施例的主要 区别在于, 导电排 1由水平安装改为侧立安装。 第一实施例中, 固定螺丝 3由铅垂方向将 导电排 1 固定在绝缘板 2两端, 漆包线 4由下而上穿过漆包线焊接孔 4a进行焊接固定。 第二实施例中, 固定螺丝 3由水平方向将导电排 1固定在绝缘板 2两端, 漆包线 4由外侧 向内侧穿 ii漆包线焊接孔 4 a进行焊接固定。 .
上述实施例中, 固定螺丝 3与绝缘板 2之间涂有螺纹紧固胶。 螺紋紧固胶使用 150。C 螺紋胶固定, 两端子和绝缘板材被固定为一个整体, 无法轻易移位变形, 并且能长期经受 高频振动不松脱, 避免了绝缘板 2直接接触而发生短路的可能性。 .
绝缘板 2采用相对介电常数 4. 25左右的 FR4板材, 经测试两导电排 1之间的电容为 取 S=50隱 2 , d=l ; C = ^= ' ' ^ ' ^ 当端子两端电压为 800V时, 频率为 20kHz , 端子间 电容的充电电流仅仅为 10- 5A。 具有优秀的绝缘性能, 而当电感经过整体真空含浸以后, 绝缘性能更佳。
针对不同的应用场所, 当绕组线圈和外部导线都是铜材时, 导电排 1采用铜排; 当绕 组线圈为铝材和外部导线为铜材时, 在综合考虑电流和发热等因素时, 导电排 1亦可使用 采用铝排, 也可使用铜排通过铜铝焊锡丝将铜排与铝线焊接; 当绕组线圏为铝材, 而外部 导线为时铜材, 导电排 1 为铜铝过渡排, 其在靠近外部电缆接线孔 la的一端为铜材, 其 在靠近漆包线焊接孔 4a 的一端为铝材。 如此避免了铝线直接焊接在铜板上, 也避免了铜 铝焊接带来的电化腐蚀。 铜铝排焊接时釆用磨砂焊接工艺, 根据供应商提供的资料以及我 公司实际测量, 使两个导体接触面阻抗 达到 μΩ的效果。
以上实施例仅为举例说明, 非起限制作用。 任何未脱离本发明精神与范畴, 而对其进 行的等效修改或变更, 均应包含于本申请的权利要求范围之中。

Claims

权 利 要 求 书
1、 一种漆包线接线端子, 其特征在于包括: 绝缘板(2)、 分别固定在绝缘板两端的 一对导电排( 1 ); 所述导电排一端设有用以焊接外部导线的导线焊接孔( la), 导电排另一 端设有至少一个用以焊接漆包线 ( 4 ) 的漆包线焊接孔( 4a )。
2、 如权利要求 1 所述的漆包线接线端子, 其特征在于: 所述漆包线焊接孔(4a) 内 只焊接一根漆包线 ( 4 ) , 漆包线焊接孔的数量与需要焊接的漆包线的根数相互对应。
3、 如权利要求 2所述的漆包线接线端子, 其特征在于: 所述导电排( 1 )水平安装; 所述绝缘板 (2)在与导电排( 1 )接触的地方设为凹陷台阶(5), 该凹陷台阶的形状与导 电排相符。
4、 如权利要求 2所述的漆包线接线端子, 其特征在于: 所述导电排( 1 )侧立安装; 所述绝缘板 (2)在与导电排( 1 )接触的地方设为凹陷台阶(5), 该凹陷台阶的形状与导 电排相符。
5、 如权利要求 3所述的漆包线接线端子, 其特征在于: 所述导电排( 1 )在与凹陷台 阶( 5 )对应的地方设有螺丝通孔( 3a), 固定螺丝 ( 3 ) 穿过螺丝通孔将导电排( 1 ) 固定 在绝缘板(2)上。 所述固定螺丝 (3) 与绝缘板 (2)之间涂有螺纹紧固胶。
6、 如权利要求 4所述的漆包线接线端子, 其特征在于: 所述导电排( 1 )在与凹陷台 阶(5)对应的地方设有螺丝通孔(3a), 固定螺丝 (3) 穿过螺丝通孔将导电排(1 ) 固定 在绝缘板(2)上。 所述固定螺丝 (3) 与绝缘板 (2)之间涂有螺纹紧固胶。
7、 如权利要求 1至 6任一项所述的漆包线接线端子, 其特征在于: 所述导电排(1 ) 为铜排或铝排。
8、 如权利要求 1至 6任一项所述的漆包线接线端子, 其特征在于: 所述导电排(1 ) 为铜铝过渡排;其在靠近外部电缆接线孔( la)的一端为铜材,其在靠近漆包线焊接孔(4a) 的一端为铝材。
PCT/CN2011/000853 2010-08-06 2011-05-16 一种漆包线接线端子 WO2012016420A1 (zh)

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