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primary components

A component and primary technology, applied in the field of linear motors, can solve the problems of complex assembly and manufacturing of primary components

Active Publication Date: 2020-10-30
ETEL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the assembly and production of such primary parts is very complicated, since the connections are located at opposite ends of the primary part, and the supply and discharge lines for the coolant must therefore be connected separately

Method used

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Embodiment Construction

[0017] figure 1 with figure 2 The primary part P according to the invention is shown. figure 1 The exploded schematic diagram enables the structure of the primary part P to be recognized very well.

[0018] Three flat coils C are arranged between two cooling plates K made of non-magnetic stainless steel, the coil axis of which is perpendicular to the cooling plate K. The coil C is insulated from the cooling plate K with a material that is resistant to electrical breakdown but has good thermal conductivity, such as a polyimide-film layer. Because the linear motor usually uses three-phase drive, there are three or three coils C in the primary part P. As described above, the respective cooling plates K are respectively composed of two plates K2, K3 which are welded to each other and have channels for the coolant. Boards K2 and K3 can be figure 2 Is recognized in the side view. In this embodiment, two cooling plates K are shown in each case, which have layer coils C arranged betw...

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Abstract

The invention relates to a primary part of an ironless linear motor with a plurality of coils (C) arranged between cooling plates (K), wherein each cooling plate (K) is connected to a cooling plate (K) The connecting piece (A) extending in the region of the edge of the connecting piece is used for supplying coolant. The connecting parts (A) of the cooling plate (K) overlap each other in a direction perpendicular to the cooling plate (K), so that a common connection area ( B), the distribution valve (V) for the coolant can be detachably connected to this common connection area.

Description

Technical field [0001] The present invention relates to a primary part of a linear motor without an iron core or a linear motor having such a primary part. Such linear motors have advantages in some applications that require high-precision positioning, that is, avoiding disturbing cogging torque (Rastmomente) by abandoning the iron core in the primary part. However, in order to be able to generate a large force without an iron core, a coil current as large as possible is required, which can only be achieved with good cooling of the coil. Background technique [0002] Therefore, it is disclosed by US 5,998,889 that the coil part of an iron-core linear motor is arranged between two cooling plates, and the two cooling plates are respectively passed through by the coolant. To this end, each cooling plate is connected to a connection piece extending in the edge region of the cooling plate for supplying coolant. However, the assembly and manufacture of such a primary part is very com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K9/19H02K41/03H02K3/24
CPCH02K3/47H02K41/02H02K9/227H02K5/203H02K9/19H02K9/22
Inventor 若泽·曼努埃尔·费尔南德斯·贡卡尔韦斯瑟尔维亚·什丘凯维奇
Owner ETEL SA
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