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Immersion motor

An inlet and cable technology, applied in the field of submersible pumps and submersible motors, can solve the problems of loss of sealing effect, no longer functional reliability of submersible motors, limiting the sealing effect of cable openings, etc., and achieve the effect of strong sealing effect

Active Publication Date: 2011-09-28
GRUNDFOS MANAGEMENT AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in submersible motors with such a cable opening, impurities such as particles or dirt can easily enter the seal, especially when installing the cables of the submersible motor housing.
This can limit the sealing effect of the cable opening or even lead to a complete loss of the sealing effect, so that the reliable function of the submersible motor can no longer be ensured

Method used

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Examples

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Embodiment Construction

[0035] figure 1 The illustrated submersible pump 1 has a submersible motor 2 and is arranged together with the submersible motor 2 in a common housing 3 . The housing 3 thus simultaneously forms the housing 3 of the submersible pump 1 and the housing 3 of the submersible electric motor 2 . Such as figure 2 As shown, a waterproof cable opening is provided on the wall 4 of the housing 3 , which includes an entry 5 in the wall 4 and a sealing collar 6 .

[0036] Figure 2 to Figure 8 The sealing collar 6 shown in FIG. 2 comprises a substantially rotationally symmetrical sealing collar housing 10 . A channel 20 extends along the longitudinal axis 15 of the sealing collar housing 10 , which channel 20 has an annular cross section in each axial section. A cable 25 is guided through the channel 20 , which cable 25 passes through the wall 4 of the submersible pump housing 3 into the interior of the submersible pump 1 by means of the sealing collar 6 .

[0037] In order to fix th...

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Abstract

The invention relates to an immersion motor having a housing (3) and comprising a wall (4) having a watertight cable penetration (5, 6; 5, 6') comprising an inlet (5) in the wall (4) for a cable (25) and a sealing collar (6; 6') that can be released from the inlet (5) having a penetration (20) for the cable (25). The sealing collar (6; 6') thereby comprises a first seal (45; 45') disposed on the penetration (20) and a means for applying force (75, 85, 90) to the first seal (45; 45'), which is designed for permanently applying force to the first seal (45; 45') radially in the penetration (20). The cable penetration (5, 6; 5, 6') comprises means for releasably attaching (35, 40) the sealing collar (6; 6') to the inlet (5), wherein at least one second seal (120, 125) is provided between the sealing collar (6; 6') and the inlet (5).

Description

technical field [0001] The invention relates to a submerged motor (Tauchmotor) and a submersible pump with the submerged motor. Background technique [0002] Submersible motors are usually fully submerged in a liquid, such as water, when operating. Such submersible motors are typical components of submersible pumps or submersible pump assemblies and are arranged together with the submersible pump in a common submersible pump housing. Typically, the submersible motor is supplied with electrical energy via electrical lines. For the power supply, cables need to be led in a watertight manner into the submersible motor or submersible pump housing. [0003] A watertight cable opening for supplying submersible motors is known, for example, from DE 42 13 306 C1. However, in submersible motors having such cable openings, impurities such as particles or dirt can easily enter the seal, especially when installing the cables of the submersible motor housing. This can limit the sealin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G3/22
CPCH02K5/132H02G3/22
Inventor 瑟伦・迪布尔
Owner GRUNDFOS MANAGEMENT AS
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