Method of manufacturing transformer windings embedded in casting resin
    1.
    发明授权
    Method of manufacturing transformer windings embedded in casting resin 失效
    制造嵌入铸塑树脂的变压器绕组的方法

    公开(公告)号:US4540536A

    公开(公告)日:1985-09-10

    申请号:US531778

    申请日:1983-09-13

    IPC分类号: H01F41/12 B29C6/02

    CPC分类号: H01F41/127

    摘要: Method of manufacturing a transformer winding embedded in casting resin by winding coils respectively by themselves and independently of one another for disposition thereof in tandem in axial direction of the winding includes placing the wound coils in a substantially annular casting mold having an inner and an outer jacket, with respective impregnated corrugated mats of insulating material as spacers disposed between the inner jacket and the coils as well as between the coils and the outer jacket, the inner and the outer jackets being fixed between mold end walls at respective ends of the casting mold; and disposing the casting mold containing the wound coils in an evacuated chamber and pouring casting resin into the casting mold through an axially parallel slot formed in the outer jacket thereof. Additionally included are spreading the inner jacket in radial direction so as to permanently deform the inner spacer to a dimension at which the radial extent of the inner spacer is reduced, the inner jacket being formed with axially parallel edges at ends thereof overlapping in circumferential direction and slidable on one another during the deformation so as to spread the inner jacket in radial direction; fixing the coils of the winding on the inner spacer against movement in axial direction; and surrounding respective edges at the ends of the inner and the outer jackets with an elastic layer at the inner face of the respective mold end walls.

    摘要翻译: 通过缠绕线圈分别缠绕在铸造树脂中的变压器绕组本身彼此独立地制造以在绕组的轴向方向串联布置的方法包括将卷绕的线圈放置在具有内部和外部套管的大致环形的铸模中 ,其中绝缘材料的各自浸渍的波纹垫作为设置在内护套和线圈之间以及线圈和外护套之间的间隔件,内外套和夹套固定在铸模的相应端的模端壁之间; 将含有卷绕的线圈的铸模设置在抽真空室中,并且通过形成在其外套中的轴向平行的槽将铸塑树脂浇注到铸模中。 另外包括的是将内护套沿径向方向扩展,以便将内间隔件永久地变形到内间隔件的径向范围减小的尺寸,内护套的端部在圆周方向上重叠形成有轴向平行的边缘, 在变形期间彼此可滑动,以便沿径向方向扩展内护套; 将所述绕组的线圈固定在所述内隔板上,以防止轴向移动; 并且在相应的模具端壁的内表面处具有在内套和外套的端部处的具有弹性层的相应边缘。

    Process for producing a cast resin coil
    4.
    发明授权
    Process for producing a cast resin coil 失效
    铸造树脂线圈的制造方法

    公开(公告)号:US5588201A

    公开(公告)日:1996-12-31

    申请号:US122424

    申请日:1993-09-21

    IPC分类号: C07C37/72 H01F7/06 H01F41/12

    摘要: For the production of a cast resin coil consisting of a plurality of axially superimposed flat coils, it is proposed that the corresponding flat coils be first of all produced by winding a first inner partial winding and a second outer partial winding with the interposition of individual spacer members by which sector-shaped intervening spaces are formed. The individual flat coils are then placed together axially and oriented so that their intervening spaces coincide, thus forming axial cooling channels. Moldings are inserted into each of said channels. This is followed by the encapsulation of the assembled flat coils. After the curing of the casting resin, the moldings are removed from the cooling channels. A cast resin coil produced in this manner has an impregnable layer of material, preferably in the region of the cooling channels by which the wall thickness of the cooling channels is predetermined in relation to the corresponding strip conductors.

    摘要翻译: PCT No.PCT / EP91 / 00552 Sec。 371日期:1993年9月21日 102(e)日期1993年9月21日PCT 1991年3月21日PCT公布。 第WO92 / 16955号公报 日期1992年10月1日为了生产由多个轴向叠置的扁平线圈组成的铸塑树脂线圈,建议相应的扁平线圈首先通过将第一内部部分绕组和第二外部部分绕组卷绕 插入形成扇形中间空间的各个间隔件。 然后将单个扁平线圈轴向放置在一起并使其中间空间重合,从而形成轴向冷却通道。 木条插入每个所述通道中。 之后是组装的扁平线圈的封装。 浇铸树脂固化后,将模具从冷却通道中取出。 以这种方式制造的铸塑树脂线圈具有可浸渍的材料层,优选地在冷却通道的区域中,冷却通道的壁厚相对于相应的带状导体预定。

    Coil for high-voltage transformer
    5.
    发明授权
    Coil for high-voltage transformer 失效
    线圈用于高压变压器

    公开(公告)号:US5598137A

    公开(公告)日:1997-01-28

    申请号:US295762

    申请日:1994-09-26

    IPC分类号: H01F27/28

    摘要: In order to achieve improved mechanical properties for a coil (1), it is proposed to structure a first electroconductive winding (3) of the coil (1) as a coil former. This coil has a first connecting element (15), to which a second connecting element (17) is attached via an insulating part (25). The two connecting elements (15, 17) form the connections for the coil (1). In this way, a self-supporting coil structure is achieved. The coil (1) is particularly intended as an undervoltage winding with a low number of windings for cast resin transformers.

    摘要翻译: PCT No.PCT / DE92 / 00189 Sec。 371日期:1994年9月26日 102(e)1994年9月26日PCT 1991年3月5日PCT公布。 出版物WO93 / 日期1993年9月16日为了实现线圈(1)的改进的机械性能,提出将线圈(1)的第一导电绕组(3)构造为线圈架。 该线圈具有第一连接元件(15),第二连接元件(17)经由绝缘部件(25)附接到第一连接元件。 两个连接元件(15,17)形成线圈(1)的连接。 以这种方式实现了自支撑线圈结构。 线圈(1)特别用作铸造树脂变压器的具有低数量绕组的欠压绕组。