Feedthrough component

Abstract

A feedthrough component, the feedthrough component comprising: a sealing member (2) including a body portion (24) having a sealing member orifice (245); at least one elongated member (4) extending through the sealing member orifice (245); and a feedthrough member (6) including a body portion (64) having a feedthrough orifice (645) extending through the body portion (64), the feedthrough member (6) being adapted to be attached to a wall (8) having a through-hole such that the feedthrough orifice (645) and the through-hole together provide a passage through the wall (8). The feedthrough member (6) is adapted to receive the sealing member (2) in the feedthrough orifice (645) in an operating position in which the feedthrough member (6) is rotatable relative to the sealing member (2) and the gap between the outer surface of the sealing member and the surface of the feedthrough orifice (645) is less than or equal to 250 microns.

Description

Technical Field

[0001] The present invention relates to a feedthrough component. Background Art

[0002] Known fireproof feedthrough components include a cable hermetically sealed to a sealing member adapted to be screwed to a wall by resin. The hermetic seal between the cable and the sealing member is adapted to prevent the spread of flames from one side of the wall to the other side of the wall.

[0003] One of the problems associated with the above feedthrough component is that when the sealing member is screwed onto or off the wall, the cable rotates with the sealing member. In the case where the wall is an enclosing wall of a motor housing, there may not be enough space inside the motor housing for the cable to rotate, and it is difficult to install and replace the feedthrough component. Summary of the Invention

[0004] The object of the present invention is to provide a feedthrough component to solve the above problems. The object of the present invention is achieved by the feedthrough component described below.

[0005] The present invention is based on the concept of providing a feedthrough component having a sealing member and a feedthrough member, wherein at least one elongated member such as a cable is sealed to the sealing member in an immovable manner, and the feedthrough member is adapted to receive the sealing member such that there is only a small gap between the sealing member and the feedthrough member, and the feedthrough member can rotate relative to the sealing member. The feedthrough member is adapted to be attached to a wall.

[0006] The advantage of the feedthrough component of the present invention is that the feedthrough component can be quickly installed onto and mounted relative to a wall without the need to rotate the at least one elongated member relative to the wall. Brief Description of the Drawings

[0007] Hereinafter, the present invention will be described in more detail with reference to the drawings by means of preferred embodiments, in which:[[]]END]]

[0008] Figure 1 A feedthrough component according to an embodiment of the present invention is shown;

[0009] Figure 2 Shows Figure 1 a side view of the feedthrough component;

[0010] Figure 3 Shows a cross-section of the feedthrough component attached to a wall Figure 2 ;

[0011] Figure 4 Shows Figure 1 the sealing member and a plurality of elongated members of the feedthrough component;

[0012] Figure 5 ShowsFigure 1 The feedthrough member of the feedthrough component;

[0013] Figure 6 shows Figure 1 the retaining member of the feedthrough component;

[0014] Figure 7 shows Figure 1 the first spacer of the feedthrough component; and

[0015] Figure 8 shows Figure 1 the second spacer of the feedthrough component. Detailed Description

[0016] Figure 1 is an axonometric projection of a feedthrough component that includes a sealing member, a plurality of elongate members 4, a feedthrough member 6, and a retaining system. The feedthrough component is a fireproof feedthrough component. Figure 2 shows Figure 1 a side view of the feedthrough component, and Figure 3 shows Figure 2 a cross-section of the feedthrough component attached to a wall 8.

[0017] Figure 4 shows a sealing member 2 having a plurality of elongate members 4. The sealing member 2 includes a body portion 24 that has a sealing member orifice 245 extending therethrough in the axial direction of the body portion 24, and the axial direction is Figure 3 the vertical direction in

[0018] The plurality of elongate members 4 extend through the sealing member orifice 245 and are sealed to the surface of the sealing member orifice 245. The elongate members 4 are cables each including a conductor surrounded by an insulator. In an alternative embodiment, at least one elongate member includes a pneumatic hose or some other flexible member.

[0019] Figure 5 shows the feedthrough member 6 as a separate component separated from the rest of the feedthrough component. The feedthrough member 6 includes a body portion 64 that is provided with an external thread 63, a feedthrough orifice 645 extending through the body portion 64 in the axial direction of the body portion 64, and a locking ring groove 648. The locking ring groove 648 is formed on the surface of the feedthrough orifice 645 and is adapted to receive an internal locking ring. The feedthrough member 6 is made of a metallic material.

[0020] In Figure 2 and Figure 3 the axial direction of the body portion 64 is the vertical direction. In Figure 1 , Figure 2 and Figure 3In [reference], the axial direction of the body portion 64 of the feedthrough member 6 is aligned with the axial direction of the body portion 24 of the sealing member 2.

[0021] In Figure 3 In [reference], the feedthrough member 6 is attached to a wall 8 having a through-hole such that the feedthrough hole opening 645 and the through-hole together provide a passage through the wall 8. The external thread 63 of the feedthrough member 6 mates with an internal thread 853 in the through-hole provided in the wall 8 for attaching the feedthrough member 6 to the wall 8. The feedthrough hole opening 645 and the through-hole in the wall 8 are coaxial with each other.

[0022] In an alternative embodiment, the body portion of the feedthrough member is provided with a flange having at least one screw hole, wherein the feedthrough member is adapted to be attached to a wall having a through-hole, and at least one screw extends through at least one screw hole and mates with at least one corresponding internal thread provided in the wall.

[0023] In Figure 1 、 Figure 2 and Figure 3 In [reference], the sealing member 2 is received in an operating position in the feedthrough hole opening 645 of the feedthrough member 6. In this operating position, the feedthrough member 6 can rotate relative to the sealing member 2, and the radial clearance between the outer surface of the sealing member 2 and the surface of the feedthrough hole opening 645 is 50 micrometers. In an alternative embodiment, the radial clearance is less than or equal to 250 micrometers. In another alternative embodiment, the radial clearance is less than or equal to 100 micrometers.

[0024] The outer surface of the sealing member 2 is a cylindrical surface, and the surface of the sealing member orifice 245 is a cylindrical surface. In an alternative embodiment, the outer surface of the sealing member is frustoconical, and the surface of the sealing member orifice is frustoconical. In another alternative embodiment, the outer surface of the sealing member has a rotationally symmetric form, and the surface of the sealing member orifice has a rotationally symmetric form matching the form of the outer surface of the sealing member.

[0025] The holding system is adapted to hold the sealing member 2 in the operating position by preventing axial movement between the sealing member 2 and the feedthrough member 6. The holding system includes a holding member 17 and a holding protrusion 67.

[0026] The holding member 17 is adapted to cooperate with the feedthrough member 6 to prevent axial movement between the sealing member 2 and the feedthrough member 6 in a first axial direction. Figure 6 It is shown that the holding member 17 is an internal locking ring. In Figure 3 In [reference], the holding member 17 is received in the locking ring groove 648.

[0027] The retaining protrusion 67 is provided on the surface of the feed-through hole 645 to prevent axial movement of the sealing member 2 relative to the feed-through member 6 in a second axial direction opposite to the first axial direction. The retaining protrusion 67 protrudes inwardly from the surface of the feed-through hole 645. Figure 3 The locking ring groove 648 and the retaining protrusion 67 are shown positioned axially apart from each other in the body portion 64 of the feed-through member 6.

[0028] The elongated member 4 is hermetically sealed to the surface of the sealing member orifice 245 by a sealing system that includes the Figure 3 filler material 13 shown. In an embodiment, the filler material 13 includes a resin. In another embodiment, the filler material 13 includes an adhesive. In some embodiments, an airtight seal between at least one elongated member and the surface of the sealing member orifice is not required. Here, an airtight seal between at least one elongated member and the surface of the sealing member orifice means preventing gas from passing through the sealing member orifice.

[0029] The elongated member 4 is integrated with the sealing member 2 by the filler material 13. The elongated member 4 cannot move relative to the body portion 24 of the sealing member.

[0030] In addition to the filler material 13, the sealing system includes a first spacer 11 and a second spacer 12 that hold the elongated member 4 at a distance from the surface of the sealing member orifice 245. The first spacer 11 and the second spacer 12 are positioned axially apart from each other in the axial direction of the body portion 24 of the sealing member 2 such that the filler material 13 is located between the first spacer 11 and the second spacer 12 in the axial direction of the body portion 24 of the sealing member 2.

[0031] The first spacer 11 includes a single first spacer orifice 115 through which a plurality of elongated members 4 extend. The second spacer 12 includes a plurality of second spacer orifices 125 such that each of the plurality of elongated members 4 extends through a corresponding second spacer orifice 125. During the manufacturing process, the filler material 13 is injected between the plurality of elongated members 4 through the first spacer orifice 115, and the second spacer 12 prevents the filler material 13 from escaping from the opposite end of the sealing member 2.

[0032] The first spacer 11 and the second spacer 12 are integrated with the sealing member 2 by the filler material 13. Thus, the body portion 24 of the sealing member, the first spacer 11, the second spacer 12, the filler material 13, and the plurality of elongated members 4 form an assembly whose parts cannot move relative to each other.

[0033] The first spacer 11 and the second spacer 12 are made of rubber. In an alternative embodiment, the first spacer and the second spacer are made of another electrically insulating material.

[0034] It will be apparent to those skilled in the art that the concept of the present invention can be implemented in various ways. The present invention and its embodiments are not limited to the above examples, but can vary within the scope of the claims.

Claims

1. A feedthrough component, comprising: A sealing member (2), the sealing member (2) including a body portion (24), the body portion (24) having a sealing member orifice (245) extending axially through the body portion (24); At least one elongated member (4), the at least one elongated member (4) extending through the sealing member orifice (245) and sealed to the surface of the sealing member orifice (245); Characterized in that the feedthrough component includes a feedthrough member (6), the feedthrough member (6) including a body portion (64), the body portion (64) of the feedthrough member having a feedthrough orifice (645) extending axially through the body portion (64), the feedthrough member (6) being adapted to be attached to a wall (8) having a through-hole such that the feedthrough orifice (645) and the through-hole together provide a passage through the wall (8), and the feedthrough member (6) being adapted to receive the sealing member (2) in the feedthrough orifice (645) to an operating position: in the operating position, the feedthrough member (6) is capable of rotating relative to the sealing member (2), and the gap between the outer surface of the sealing member (2) and the surface of the feedthrough orifice (645) is less than or equal to 250 micrometers, Wherein the feedthrough component includes a retention system, the retention system being adapted to hold the sealing member (2) in the operating position by preventing axial movement between the sealing member (2) and the feedthrough member (6), Wherein the retention system includes a retention member (17) and a retention protrusion (67), the retention member (17) being adapted to cooperate with the feedthrough member (6) to prevent axial movement between the sealing member (2) and the feedthrough member (6) in a first axial direction, the retention protrusion (67) being provided on the surface of the feedthrough orifice (645) to prevent axial movement between the sealing member (2) and the feedthrough member (6) in a second axial direction opposite to the first axial direction, and Wherein the retention member (17) is a locking ring.

2. The feedthrough component according to claim 1, wherein The feedthrough member (6) is provided with an external thread (63), the external thread (63) being adapted to cooperate with an internal thread (853) provided in the through-hole of the wall (8) for attaching the feedthrough member (6) to the wall (8).

3. The feedthrough component according to claim 1 or 2, characterized in that The at least one elongated member (4) is sealed to the surface of the sealing member orifice (245) by a sealing system, the sealing system including a filling material (13).

4. The feedthrough component according to claim 3, characterized in that, The filling material (13) is a resin or an adhesive.

5. The feedthrough component according to claim 3, wherein, The sealing system includes a first spacer (11) and a second spacer (12) that hold the at least one elongated member (4) at a distance from the surface of the orifice (245) of the sealing member, and the first spacer (11) and the second spacer (12) are positioned a distance apart from each other in the axial direction of the body portion (24) of the sealing member (2).

6. The feedthrough component according to claim 5, characterized in that, The filling material (13) is located between the first spacer (11) and the second spacer (12) in the axial direction of the body portion (24) of the sealing member (2).

7. The feedthrough component according to claim 6, characterized in that, The at least one elongated member (4) includes a plurality of elongated members (4), and the first spacer (11) includes a single first spacer orifice (115) through which the plurality of elongated members (4) extend, and the second spacer (12) includes a plurality of second spacer orifices (125) such that each of the plurality of elongated members (4) extends through a corresponding second spacer orifice (125).

8. The feedthrough component according to claim 5, characterized in that, The first spacer (11) and the second spacer (12) are made of rubber.

9. The feedthrough component according to claim 3, characterized in that, The sealing system hermetically seals the at least one elongated member (4) to the surface of the orifice (245) of the sealing member.

10. The feedthrough component according to claim 1 or 2, characterized in that, The sealing member (2) is made of a metallic material, and the feedthrough member (6) is made of a metallic material.

11. The feedthrough component according to claim 1 or 2, characterized in that, The at least one elongated member (4) is a flexible member.

12. The feedthrough component according to claim 11, wherein, The at least one elongated member (4) is a cable.

13. The feedthrough component according to claim 1 or 2, characterized in that, The gap between the outer surface of the sealing member (2) and the surface of the feedthrough orifice (645) is less than or equal to 100 micrometers.

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