EP3520187A1

EP3520187A1 - Cable holding device

Info

Publication number: EP3520187A1
Application number: EP17777568.1A
Authority: EP
Inventors: Sven Krause; Dat-Minh Trinh; Sebastian Sieg; Michael NOLTING
Original assignee: Phoenix Contact GmbH and Co KG
Current assignee: Phoenix Contact GmbH and Co KG
Priority date: 2016-09-29
Filing date: 2017-09-28
Publication date: 2019-08-07
Also published as: WO2018060377A1; CN109792138A; US20190305533A1; LU93242B1

Abstract

The invention relates to a cable holding device (100) for mounting a cable (108) to a housing or to a wall opening, having a first holding element (101), comprising a first opening (103), and a second holding element (105), comprising a second opening (107), wherein the first holding element (101) and the second holding element (105) are designed so as to be arrestable in a holding position, and the first opening (103) and the second opening (107) are arranged aligned to each other in the holding position, wherein the first holding element (101) and the second holding element (105) are designed such that the first holding element (101) and the second holding element (105) can be transitioned to the holding position by a translational movement.

Description

CABLE HOLDING DEVICE

The invention relates to a cable holding device for mounting a cable to a housing or a wall bushing. Such cable retainers or cable glands are in the state of

Technique used to attach cables to the housing of electrical devices while providing a strain relief. Most are such

Cable holding devices screwed down to fix a cable. From the document DE 10 2008 049 258 B4 a cable feedthrough of a housing of an electrical or electro-optical device is known. The grommet comprises an opening disposed in the housing, through which a cable is passed, wherein the opening is surrounded by a circumferential seat on the housing, which in turn is surrounded by a lamella, with a space around the lamellar ring, the outside of a wall is limited, with a

Inserted into the intermediate space press-fit and pressed with a lateral surface with the wall. The press-in sleeve has an inner wall section, the inner diameter of which tapers, with which the lamellae of the lamellar rim are bent inward in the radial direction by the introduction into the intermediate space in the axial direction. An Elastomertülle is plugged onto the cable, which rests against the seat, surrounded by the lamellar ring and is compressed by the radially inwardly bent blades in the radial direction and fixes the cable.

A disadvantage of the prior art is that the compression of the press blades to fix a cable through a union nut, which must be screwed and tightened with a defined torque. This brings one

relatively high assembly costs.

It is the object of the present invention to overcome the disadvantages of the prior art and to provide an improved concept of a cable holding device for attaching a cable to a housing of an electrical device.

This object is achieved by the subject matter having the features according to the independent ones Claims solved. Advantageous embodiments of the invention are the subject of the figures, the description and the dependent claims.

According to one aspect of the invention, the object is achieved by a cable holding device for mounting a cable to a housing or a wall bushing with a first holding element comprising a first feedthrough, and a second feedthrough

Holding element comprising a second implementation solved. The first holding member and the second holding member are formed lockable in a holding position and the first passage and the second passage are arranged in alignment with each other in the holding position, wherein the first holding member and the second holding member are formed with a translational movement in the holding position. As a result, for example, the technical advantage is achieved that the mounting of a cable to a housing can be realized very easily and without increased installation effort. It is not necessary to use additional tools, as neither a

Union nut still a certain torque must be achieved. The

Holding position can be achieved with a simple translational pressure, for example with a finger pressure. In this case, only the first holding element and the second holding element are fixed to each other for subsequent assembly steps, whereby the first holding element and the second holding element together are handled in one piece. In order to lock the first holding element and the second holding element in a particularly simple and reliable manner in the holding position, the cable holding device has latching means in order to fix the first holding element and the second holding element in the holding position. According to a preferred embodiment, the locking means has a resilient

Latching arm on. As a result, for example, the technical advantage is achieved that the first holding element and the second holding element are very easy lockable. The latching arms may additionally comprise pawls that can engage in corresponding projections. The locking connection could not be done in this case by simple

To be pulled out nondestructively.

In order to further simplify mounting of the cable holding device and to simplify the manufacturing process for the cable holding device, the first is Holding element and the second holding element formed together as a one-piece integral component. This reduces the number of components to be assembled and

Incorrect assembly can thus be prevented.

In an advantageous embodiment, the first holding element and the second holding element are each formed as a one-piece integral component.

According to a particularly preferred embodiment, the second retaining element comprises retaining lugs, which are arranged adjacent to the second passage. The retaining louvers are arranged in this case in a circumferential direction about the second passage. Thus, there is a possibility by the retaining slats to fix a cable disposed within the second bushing. The fixing can be effected by deformation of the retaining lamellae, wherein the arrangement of the retaining lamellae in a circumferential direction around the second implementation cause a homogeneous introduction of force.

In order to provide a particularly sustainable and cable-saving strain relief, the cable holding device comprises a sealant.

In a particularly preferred embodiment, the sealing means is arranged on an inner side of the retaining lamellae. As a result, for example, the technical advantage is achieved that the sealing means can be arranged particularly precisely on the retaining louvers. Thus, a further assembly step is saved and it can be prevented errors with respect to the arrangement of the sealant. In order to transfer the cable holding device into a final assembly position in a particularly simple manner and without increased assembly costs, the first holding element and the second holding element are adapted to be transferred from the holding position into a final assembly position by a further translatory movement. As a result, for example, the technical advantage is achieved that no further assembly tools or complex measures must be taken to achieve the final assembly state. Here, simply by an additional pressure movement, for example by a finger pressure translatorisch the final assembly position can be achieved. In order to additionally simplify the transfer to the final assembly position, the latching means of the cable holding device is designed to fix the first holding element and the second holding element in the final assembly position. This can be achieved for example by additional projections, which correspond to the resilient locking arms and the arranged pawls. Thus, a simple locking means can be used both for locking in the holding position and for fixing in the final assembly position.

In a particularly preferred embodiment, the first holding element is designed to radially deform in the final assembly position, the holding lamellae of the second holding member to reduce a cross section of the second passage. As a result, for example, the technical advantage is achieved that the retaining lamella are pressed onto the sealant, whereby a disposed within the second implementation cable undergoes strain relief. To protect the cable retention device in the final assembly position, includes

Cable holding device, a cover member which is formed on the cable holding device in the final assembly position attachable.

In a particularly preferred embodiment, the cover element has a

Holding means, which is designed for strain relief for a cable disposed within the cable holding device cable. As a result, for example, the technical advantage can be achieved that the strain relief of a cable is additionally improved. This can be realized in particular with a fork-shaped holding means. In order to additionally reduce assembly costs and to prevent the loss of individual components of the cable holding device, the cover element has a loss protection, which connects the cover element with the first holding element or with the second holding element. In this case, the cover element and the first holding element or the second holding element can be integrally formed as an integral component.

According to a further aspect of the invention, the object is achieved by a

Cable holding system with a cable holding device and a housing solved. Again, the mounting of a cable to the housing is very simple and without increased Installation work feasible. Neither additional tools nor an additional union nut are necessary.

According to a particularly preferred embodiment, the second holding element and the housing is integrally formed as an integral component. As a result, for example, the technical advantage is achieved that the entire cable holding system can be provided with fewer parts and reduced manufacturing costs.

Further embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Show it:

1A is a schematic representation of a cable holding device of the prior art,

1 B is a schematic representation of a cable holding device of the prior art in longitudinal section,

1 C is a further schematic representation of a cable holding device of the prior art in longitudinal section,

2A is a perspective view of a first holding element,

2B is another perspective view of a first holding element,

2C shows a still further illustration of a first holding element,

3A a representation of a second holding element, FIG. 3B a further illustration of a second holding element, FIG.

4A is an illustration of a cable holding device with cable, 4B is a schematic representation of a cable holding device,

4C is a further schematic representation of a cable holding device,

5 shows a still further illustration of a cable holding device,

6A shows a still further perspective view of a cable holding device,

6B is a schematic representation of a cover element, Fig. 6C is a further schematic representation of a cable holding device in

Longitudinal section

6D is a still further schematic illustration of a cable holding device in FIG

Longitudinal section

7A is a further schematic representation of a cable holding device with

Cover element, and

Fig. 7B is a still further schematic representation of a cable holding device with cover element.

FIG. 1A shows a schematic illustration of a cable holding device of the prior art. The cable holding device for mounting a cable 108 comprises a first holding element 101 and a second holding element 105. The first holding element 101 and the second holding element 105 can be converted into a final assembly state by the two holding elements being screwed together. The second holding element 105 comprises a plurality of holding lamellae 1 1 1 which are deformed by the screwing of the first holding element 101. The deformed retaining slats 1 1 1 act radially on a sealing means 1 13 and thus realize a strain relief for the cable 108. Such cable retainers or cable glands are in the state of

Technique usually used to attach cable 108 to the housing of electrical devices while providing a strain relief. FIG. 1B shows a schematic representation of a cable holding device of the prior art in longitudinal section. The cable 108 extends within the first holding member 101 through the sealing means 1 through 13 into the second holding member 105. The retaining slats 1 1 1 are arranged opposite the inner cable spaced, whereby the sealing means 1 13 by axial displacement under the

Retaining slats 1 1 1 can be inserted into a space.

FIG. 1 C shows a further schematic representation of a cable holding device of the prior art in longitudinal section. The first retaining element 101 is in a state screwed onto the second retaining element 105, whereby the cable 108 is fixed and the strain relief is provided. By the action of a

Projection 106 on the retaining slats 1 1 1, a force is applied to the cable 108 via the sealing means 1 13.

2A shows a perspective view of a first holding element 101. The first holding element 101 has a cuboid base body and is designed to be locked in a holding position by a translatory movement with a second holding element 105 (not shown). The first holding element 101 has latching means 109 in the form of two latching arms which each comprise a pawl on an end of each latching arm facing away from the base body. By the latching arms, it is possible, the first holding member 101 and the second holding member 105 in the

Hold position to fix. The locking connection can thus not be solved by simply pulling out non-destructive. In addition, the first holding element 101 comprises a first feedthrough 103 through which a cable 108 (not shown) is provided.

can be passed. Here, a longitudinal axis of an inserted through the first passage 103 cable 108 and the translational direction of the

Movement for locking the first holding member 101 with the second holding member 105 identical. By a conical portion within the first passage 103, a projection 106 is formed, which can cooperate with retaining slats 1 1 1 (not shown) of the second holding member 105.

FIG. 2B shows a further perspective illustration of the first holding element 101 with the first feedthrough 103 and latching means 109 arranged laterally on the main body of the first holding element 101. FIG. 2C shows a still further illustration of a first holding element 101 in a plan view.

FIG. 3A shows an illustration of a second holding element 105. The second

Retaining element 105 comprises retaining slats 1 1 1, which adjacent to a second

Implement 107 are arranged. The retaining louvers 1 1 1 are arranged in a circumferential direction about the second passage 107. Immediately adjacent to the retaining slats 1 1 1, there are a plurality of alignment means 1 12, which allow a precise arrangement of the first holding member 101 to the second holding member 105. In addition, the second holding element 105 has openings 16, in order to fasten the second holding element 105, for example, to a housing wall.

FIG. 3B shows a further illustration of the second holding element 105 in a plan view. The second holding element 105 has the alignment means 1 12, the retaining lamella 1 1 1 and the second passage 107. In addition, the second holding element 105 comprises a sealing means 1 13, which is arranged on an inner side of the retaining slats 1 1 1. The sealing means 1 13 is formed as a cylindrical body and is frontally inserted into the retaining lamella 1 1 1. 4A shows an illustration of a cable holding device 100 with inserted cable 108. The cable holding device 100 for mounting the cable 108 to a

Housing 201 comprises the first holding element 101 with the first passage 103 and the second holding element 105 with the second passage 107. The first holding element 101 and the second holding element 105 are already transferred to the holding position. The first passage 103 and the second passage 107 are aligned with each other and a cable 108 is passed through both passages. By the alignment means 1 12 on the second holding element 105 in conjunction with the locking means 109 of the first holding member 101, the first holding member 101 and the second holding member 105 were transferred with a translational movement in the holding position.

FIG. 4B shows a schematic illustration of a cable holding device 100. The cable holding device 100 from FIG. 4A and the cable holding device 100 from FIG. 4B are arranged in the identical holding position. In this holding position it is possible the handle entire cable holding device 100 for further assembly steps as a one-piece component, wherein a displacement of the cable 108 is possible. This is due to the fact that the retaining lamellae 1 1 1 of the second holding member 105 in the

Hold position are not deformed yet. Thus, no force is exerted on the sealing means 13 and on the cable 108, whereby the cable 108 is displaceable.

4C shows a further schematic representation of a cable holding device 100. The cable holding device 100 is in a final assembly position in which the inner cable 108 is fixed and a strain relief is realized. The first holding element 101 and the second holding element 105 were transferred from the holding position to a final assembly position with a further translatory movement. It is essential here that the further translatory movement to achieve the final assembly position in the same direction, in which already the translational movement to lock the first holding member 101 and the second holding member 105 was carried out in the holding position. The latching means 109 of the first holding element 101 is configured to fix the first holding element 101 and the second holding element 105 also in the final assembly position. The arranged on the locking arms pawls engage in the final assembly position in deeper additional projections, which correspond to the pawls. Thus, with a locking means 109, both the locking in the holding position and the fixing in the final assembly position can be realized. A projection 106 of the first holding element 101 is formed in the final assembly position to act on the retaining lamella 1 1 1 of the second holding member 103 to deform them radially. By this deformation, the cross section of the second passage 107 is reduced and realized via the sealing means 1 13 a strain relief.

FIG. 5 shows a still further illustration of the cable holding device 100. In addition, the cable holding device 100 comprises a cover element 1 15. The cover element 15 serves as a protective housing, which can be applied to the cable holding device 100 in the final assembly position. The lid member 1 15 has on an inner side a fork-shaped holding means 1 17. The fork-shaped holding means 1 17 is clamped laterally on a portion of the cable 108 during application of the lid member 1 15 on the cable holding device 100. By clamping an additional strain relief is realized. 6A shows a still further perspective view of a cable holding device 100. The cover element 1 15 is applied to the cable holding device 100 and the fork-shaped holding means 1 17 is clamped onto the cable 108, whereby the holding means 1 17 causes the additional strain relief.

FIG. 6B shows a schematic representation of a cover element 15, including the fork-shaped holding means 11.

FIG. 6C shows a further schematic representation of a cable holding device 100 in longitudinal section. The cable retainer 100 is in the final assembly position and a cable 108 is fixed in the cable retainer 100. The lid member 1 15 with the fork-shaped holding means 1 17 is not yet applied to the cable holding device 100. FIG. 6D shows a still further schematic representation of a

Cable holding device 100 in longitudinal section. The cable holding device 100 is in the final assembly position, a cable 108 is fixed in the cable holding device 100 and the lid member 1 15 with the fork-shaped holding means 1 17 is on the

Cable holding device 100 applied. This condition describes one

completed mounting state of the cable holding device 100th

FIG. 7A shows a further schematic illustration of a cable holding device 100 with cover element 1 15. The cover element 15 also encloses the first holding element 101, wherein a cutout 18 for the cable 108 is provided.

FIG. 7B shows a still further schematic representation of a

Cable holding device 100 with cover element 1 15 including the recess 1 18.

All of the features explained and shown in connection with individual embodiments of the invention may be provided in different combinations in the article according to the invention in order to simultaneously realize their advantageous effects. LIST OF REFERENCE NUMBERS

100 cable holding device

101 First holding element

103 First implementation

105 Second holding element

106 advantage

107 Second implementation

108 cables

109 locking means

111 retaining slats

112 alignment means

113 sealant

115 cover element

116 opening

117 holding means

118 recess

200 cable holding system

201 housing

Claims

1 . Cable holding device (100) for mounting a cable (108) to a housing or a wall duct, comprising:

a first holding element (101) comprising a first passage (103), and a second holding element (105) comprising a second passage (107), wherein the first holding element (101) and the second holding element (105) in one

Holding position are formed lockable and the first passage (103) and the second passage (107) are arranged in alignment with each other in the holding position, characterized in that the first holding element (101) and the second holding element (105) with a translational movement in the holding position are designed to be transferable.

2. Cable holding device (100) according to claim 1, characterized in that the cable holding device (100) has at least one latching means (109) for fixing the first holding element (101) and the second holding element (105) in the holding position.

3. Cable holding device (100) according to claim 2, characterized in that the latching means (109) has a resilient latching arm.

4. Cable holding device (100) according to any one of the preceding claims, characterized in that the first holding element (101) and the second holding element (105) are each formed as a one-piece integral component.

5. Cable holding device (100) according to any one of the preceding claims, characterized in that the second holding element (105) retaining lamellae (1 1 1), which are arranged adjacent to the second passage (107).

6. cable holding device (100) according to claim 5, characterized in that the retaining slats (1 1 1) are arranged in a circumferential direction about the second passage (107).

7. cable holding device (100) according to any one of the preceding claims, characterized in that the cable holding device (100) comprises a sealing means (1 13).

8. Cable holding device (100) according to claim 7, characterized in that the sealing means (1 13) on an inner side of the retaining lamellae (1 1 1) is arranged.

9. cable holding device (100) according to any one of the preceding claims, characterized in that the first holding element (101) and the second holding element (105) with a further translational movement of the holding position in a

Final assembly position are formed convertible.

10. Cable holding device (100) according to any one of the preceding claims, characterized in that the latching means (109) of the cable holding device (100) is adapted to fix the first holding element (101) and the second holding element (105) in the final assembly position.

1 1. Cable holding device (100) according to one of the preceding claims, characterized in that the first holding element (101) is designed to be in the

Final assembly position to deform the retaining lamellae (1 1 1) of the second holding member (103) radially to reduce a cross section of the second passage (107).

12. Cable holding device (100) according to any one of the preceding claims, characterized in that the cable holding device (100) comprises a cover element (1 15) which is formed on the cable holding device (100) applied in the final assembly position.

13. Cable holding device (100) according to claim 12, characterized in that the cover element (1 15) has a holding means (1 17), which is designed for strain relief for a within the cable holding device (100) arranged cable (108).

14. Cable retention system (200), with:

a cable holding device (100) according to any one of claims 1 to 13 and a

Housing (201).

15. Cable holding system (200) according to claim 14, characterized in that the second holding element (105) and the housing (201) is integrally formed as an integral component.