Crimped connector and crimping method for a crimp assembly with retaining shoulder

The crimping assembly, consisting of an anvil bushing and a compression sleeve, solves the problems of electrical contact and mechanical stability of shielded cables under the influence of induced current and mechanical forces during high-voltage power transmission, achieving reliable electrical contact and high mechanical stability.

CN112825399BActive Publication Date: 2025-12-30TE CONNECTIVITY GERMANY GMBH
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Patent Information

Application Number
CN202011299255.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2019-11-21
Filing Date
2020-11-19
Publication Date
2025-12-30
Estimated Expiration
2040-11-19

AI Technical Summary

Technical Problem

In the prior art, the conductive components of shielded cables are difficult to maintain reliable electrical contact and mechanical stability under the influence of induced current and external mechanical forces during high-voltage power transmission.

Method used

The crimping assembly consists of an anvil bushing and a compression sleeve. The anvil bushing has a retaining shoulder to support the conductive component, and the compression sleeve makes electrical contact with it and crimps it in the axial direction to form a reliable electrical contact, while providing mechanical support through the retaining shoulder.

Benefits of technology

It improves the mechanical stability of conductive components under external pulling force and vibration, while ensuring the reliability of electrical contact and effectively transferring induced current.

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Abstract

It is an object of the present invention to provide a crimp assembly, preferably for a cable, which allows a reliable electrical contact between the crimp assembly and a conductive part of the cable while improving the mechanical stability at the contact area. This object is achieved by providing a crimp assembly comprising an anvil bushing and a compression sleeve. The anvil bushing has at least one retaining shoulder at its outer peripheral surface for supporting at least a portion of the conductive part and the compression sleeve has an inner diameter which is larger than the outer diameter of the retaining shoulder. The compression sleeve can be crimped over the retaining shoulder of the anvil bushing so as to press the conductive part against the retaining shoulder. Thus, a reliable electrical contact is established. Furthermore, the retaining shoulder can mechanically support at least one of the conductive part and the compression sleeve to improve the resistance against external mechanical influences. The object is also achieved by a crimp connection and a crimping method using said crimp assembly.
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Description

Technical Field

[0001] This invention relates to a crimping assembly, and more particularly to a crimping assembly for use in electrical contact with conductive parts of cables, such as shields or shielding components of shielded cables. Background Technology

[0002] In electrical engineering, cables used to conduct current or signals are often surrounded by conductive shielding devices. Depending on the application, shielding devices can be used to suppress electromagnetic radiation generated within the cable, thereby protecting nearby electrically sensitive components (e.g., control electronics or electronic measuring equipment). Shielding devices can also protect the cable itself from electromagnetic interference that could negatively affect signals transmitted through it.

[0003] In shielded cables transmitting high-voltage electricity, especially with AC voltages up to 1000V, the induced current in the shielding devices surrounding the cable can reach 30% of the main current. To maintain the cable's functionality, these induced currents need to be removed from the shielding devices. Furthermore, shielded cables may be subjected to external mechanical influences, which also pose a risk of impairing their function.

[0004] Technical problems to be solved

[0005] The object of the present invention is to provide a method for reliably making electrical contact with a conductive component of a cable (e.g., a shielding device of a shielded cable), wherein high mechanical stability is provided in the contact area, which can withstand external pull-out forces and vibrations. Summary of the Invention

[0006] The present invention is achieved by providing a crimping assembly for a conductive component of an electrical contact cable, characterized in that the crimping assembly includes an anvil bushing and a compression sleeve, wherein the anvil bushing has at least one retaining shoulder that extends circumferentially on the peripheral surface of the anvil bushing to support at least a portion of the conductive component, and wherein the compression sleeve has an inner diameter that is larger than the outer diameter of the retaining shoulder.

[0007] Such a crimping assembly can make electrical contact with a conductive component to transfer or release induced current in the conductive component, for example, when alternating current flows through a cable. Furthermore, the compression sleeve can be at least partially fitted onto the anvil bushing, particularly onto the retaining shoulder, which is located on the outer peripheral surface of the anvil bushing facing the compression sleeve. In this assembly, the compression sleeve can be crimped, and the conductive component can be pressed, preferably directly, against the retaining shoulder to establish a reliable electrical contact. The conductive component can be any conductive portion of the cable, preferably comprising multiple strands, such as a braided shield or a conductor comprising several wires.

[0008] Additionally, the retaining shoulder can be configured to mechanically support at least one of the conductive component and the compression sleeve. Therefore, when a pull-out force is applied to the conductive component in the axial direction of the cable, a reaction force is generated at the retaining shoulder, which has at least an axial force component and resists the pull-out force. Thus, this inventive crimping assembly improves resistance to external mechanical influences compared to crimping assemblies with an anvil bushing without a shoulder.

[0009] More specifically, the anvil bushing can be a machined, cold-formed, or deep-drawn part made of a conductive material. In particular, the anvil bushing can be formed as a hollow cylinder, including a flanged portion at one end and a crimped portion at the opposite end.

[0010] At the flange portion, a radial flange having an outer diameter larger than the outer diameter of the retaining shoulder can project radially outward. The radial flange can serve as a device for securing the anvil bushing, for example, by securing it within a housing or enclosure surrounding the crimping assembly. The radial flange can also provide a device for electrically connecting the anvil bushing to said housing or enclosure. In the crimping portion, the at least one retaining shoulder can be formed on the outer peripheral surface of the anvil bushing.

[0011] The conductive component can be, for example, the shielding of a shielded cable, such as a shielding braid made of metal wire. The shielding braid can be at least partially widened in the fitting direction and fitted over the retaining shoulder of the anvil bushing. The remainder of the shielded cable can be inserted through the anvil bushing.

[0012] The compression sleeve can be a thin-walled cylinder with a constant inner diameter made of conductive material. The compression sleeve can also be coaxially positioned relative to the anvil bushing. Preferably, the anvil bushing and the compression sleeve are configured to partially overlap at the retaining shoulder of the anvil bushing, and the shielding braid is clamped between them together during crimping.

[0013] The solution described above can be further improved by adding one or more of the following optional features. Therefore, each of these optional features is advantageous on its own and can be combined independently with any other optional feature.

[0014] According to the first embodiment, the compression sleeve can be adapted to receive the anvil bushing to form an annular gap of constant width at at least one axial position. The advantage of the annular gap is that it forms a defined space that can receive conductive components.

[0015] In another embodiment, the anvil bushing is more rigid than the compression sleeve, at least in the radial direction. This ensures that the anvil bushing retainer functions to mechanically support the conductive component without deformation, whereas the compression sleeve can deform to create compression on the conductive component, thus improving the electrical contact between the anvil bushing and the conductive component.

[0016] In another embodiment, the outer diameter of the at least one retaining shoulder may be larger than the outer diameter of at least one end portion of the anvil bushing. Alternatively, the outer diameter of the at least one retaining shoulder may be smaller than the outer diameter of the at least one end portion of the anvil bushing. Furthermore, a stepped or gradual transition may connect the retaining shoulder to the end portion. This embodiment represents a simple design for the at least one retaining shoulder. Additionally, the transition between different diameters results in an increase in the outer surface area of ​​the anvil bushing, leading to a larger contact area between the anvil bushing and the conductive component. Therefore, electrical contact is further improved.

[0017] If more than one retaining shoulder is formed on the anvil bushing, the outer diameter of the retaining shoulder can be larger than the outer diameter of the portion between subsequent retaining shoulders.

[0018] According to another embodiment, the at least one retaining shoulder may be formed by at least one radially outwardly projecting peripheral portion, preferably a raised peripheral portion, which extends continuously or discontinuously along the circumference of the anvil bushing. In a cross-section of the radial plane, the at least one peripheral portion may have one of the following: a circular, semi-circular, square, trapezoidal, or prismatic profile.

[0019] In this embodiment, the retaining shoulder has at least two variations in the outer diameter of the anvil bushing, thereby allowing bidirectional fixation of the conductive component and / or the compression sleeve abutting against the retaining shoulder. In other words, the retaining shoulder can receive external forces applied to the conductive component and / or the compression sleeve, oriented in or against the fitting direction. This further improves the mechanical stability at the contact area.

[0020] Alternatively, the at least one retaining shoulder is formed by at least one radially inwardly recessed groove that extends continuously or discontinuously along the circumference of the anvil bushing. In a cross-section of the radial plane, the at least one groove may have one of the following profiles: circular, semi-circular, square, trapezoidal, or prismatic. This embodiment requires less material while providing bidirectional fixation of the conductive components and / or compression sleeve.

[0021] Embodiments with continuously extending retaining shoulders are advantageous for turning anvil bushings because the at least one retaining shoulder extends along the entire circumferential surface of the anvil bushing and is therefore rotationally symmetrical.

[0022] In embodiments with discontinuously extending retaining shoulders, the at least one retaining shoulder may extend discontinuously along at least a portion of the outer peripheral surface of the anvil bushing, preferably forming a symmetrical pattern along the circumferential direction of the anvil bushing. Therefore, external forces oriented in the circumferential direction of the anvil bushing can also be received by the retaining shoulder. Since rotational symmetry is not required, this embodiment is advantageous for cold-formed or deep-drawn anvil bushings.

[0023] According to yet another embodiment, a plurality of retaining shoulders may be formed on the anvil bushing. The respective retaining shoulders may be spaced apart from each other, for example, by offsetting each other in the axial direction of the anvil bushing. Providing a plurality of retaining shoulders on the anvil bushing also increases the total surface area available for electrical contact.

[0024] Furthermore, in the case of discontinuous retaining shoulders, each retaining shoulder can be offset relative to each other at a predetermined angle in the circumferential direction. This embodiment is preferred because it distributes the mechanical load applied to each retaining shoulder across the circumference of the anvil bushing.

[0025] The above problems are further solved by a crimping connector including a crimping assembly according to the invention, wherein a compression sleeve is compressed around an anvil bushing, and wherein at least one conductive part of the shielded cable is sandwiched between the anvil bushing and the compression sleeve.

[0026] This solution is advantageous because the anvil bushing is in electrical contact with at least one conductive component, and the compression sleeve further improves the electrical contact by pressing, preferably directly pressing, the at least one conductive component against the anvil bushing due to the deformation of the compression sleeve.

[0027] According to another embodiment of the crimp connector, the anvil bushing and the compression sleeve can be coaxially aligned along a common central axis and in at least one cross-section of the crimp connector perpendicular to the central axis, and the anvil bushing can be in uniform contact with the at least one conductive component along the entire circumference of the anvil bushing. This embodiment is particularly preferred for applications where the at least one conductive component is a conductive braid of a shielded cable. The shielding braid covering the outer peripheral surface of the anvil bushing along the entire circumference in at least one cross-section creates gapless 360° shielding of the shielded cable along the entire length of the crimp connector.

[0028] Preferably, the anvil bushing makes uniform contact with the at least one conductive element along the entire circumference of the anvil bushing in each cross-section of the crimping assembly, wherein the at least one conductive element is sandwiched between the anvil bushing and the compression sleeve. This ensures that the entire available contact surface area is used to make electrical contact between the anvil bushing and the at least one conductive element.

[0029] Optionally, at least some portions of the surface structure of the shoulder and / or conductive component are at least partially pressed against the outer surface of the compression sleeve. More specifically, the compression sleeve contracts uniformly in the radial direction, i.e., perpendicular to the central axis, and visually presents the shape of the anvil bushing and the at least one conductive component. This embodiment is particularly preferred for applications where the at least one conductive component is, for example, the shielding braid of a shielded cable, because the compression sleeve can trace the pattern of the shielding braid. This can serve as a visual indicator of a successfully crimped compression sleeve during the manufacture of crimped connectors.

[0030] In another embodiment of the crimped connector, the compression sleeve is deformed around the anvil bushing by non-contact crimping, preferably explosive crimping or crimping using electromagnetic pulse technology (EMPT crimping). EMPT crimping allows for uniform deformation of the compression sleeve, resulting in a uniformly crimped compression sleeve without corners or rough edges. Therefore, tension spikes within the material of the compression sleeve can be prevented or at least mitigated.

[0031] In embodiments of the crimped connector, the compression sleeve is compressed via EMPT crimping. The anvil bushing and the compression sleeve can be made of the same material or a pair of different materials. Specifically, the anvil bushing can be made of a conductive material, provided that the combination of material strength and thickness prevents the anvil bushing from deforming due to EMPT crimping. The compression sleeve can be made of any conductive material, provided that the combination of material strength, ductility, and thickness allows the compression sleeve to undergo plastic deformation via EMPT crimping.

[0032] Alternatively, the compression sleeve of the crimped connector can be mechanically crimped, for example by hexagonal crimping. This embodiment is advantageous for crimped connectors that require crimping in confined spaces or in situ (e.g., outside of a manufacturing facility) because crimping tools used for mechanical crimping can typically be operated in a space-saving and portable manner.

[0033] Optionally, at least one corrugated fitting portion may be formed between the compression sleeve and the retaining shoulder. More specifically, the at least one corrugated fitting portion may have a shape and position complementary to the at least one retaining shoulder. Thus, a form-fit connection can be established between the anvil bushing, the conductive component, and the compression sleeve. In the case of mechanically crimped connections, the crimping tool for mechanical crimping may include a crimping die whose internal profile is formed to complement the external volume of the anvil bushing.

[0034] The above problems are also solved by a crimping method comprising the steps of: providing a crimping assembly and a cable having a conductive component; arranging the conductive component between a retaining shoulder and a compression sleeve of the crimping assembly, the retaining shoulder extending circumferentially on the outer surface of the anvil bushing of the crimping assembly; and compressing the compression sleeve in a radially inward direction, thereby clamping the conductive component at least between the retaining shoulder and the compression sleeve. This crimping method is advantageous because it represents a method of manufacturing a crimped connector according to the invention, as described above, with reliable electrical contact and high mechanical stability.

[0035] In the following description, embodiments of the invention are illustrated with reference to the accompanying drawings. The illustrated and described embodiments are for illustrative purposes only. The combinations of features shown in the embodiments may be varied based on the foregoing description. For example, if the technical effect associated with a feature is beneficial to a particular application, a feature not shown in the embodiments but described above may be added. Conversely, if the technical effect associated with a feature is not required in a particular application, the feature shown as part of the embodiments as described above may be omitted.

[0036] In the accompanying drawings, elements that correspond to each other in function and / or structure have been provided with the same reference numerals. Attached Figure Description

[0037] The invention will now be described by way of example with reference to the accompanying drawings, in which:

[0038] Figure 1 A schematic perspective view of a crimping assembly according to one possible embodiment of the present disclosure is shown;

[0039] Figure 2 It shows according to Figure 1 A schematic side view of the crimping assembly of the embodiment shown;

[0040] Figure 3 It shows according to Figure 2 A schematic cross-sectional view of the crimping assembly of the embodiment shown;

[0041] Figure 4 A schematic diagram of a cross-sectional view of a crimping assembly and a shielded cable according to another possible embodiment of the present disclosure is shown;

[0042] Figure 5 A schematic cross-sectional view of a crimped connector and a housing according to one possible embodiment of the present disclosure is shown;

[0043] Figure 6 A schematic side view of a crimp connector according to another possible embodiment of the present disclosure is shown; and

[0044] Figure 7A schematic cross-sectional view of a crimp connector according to yet another possible embodiment of the present disclosure is shown. Detailed Implementation

[0045] First, refer to Figures 1 to 4 The exemplary embodiments shown illustrate the structure of the crimping assembly 1 according to the present invention. Below, Figures 5 to 7 This is used to illustrate the structure of the crimp connector 2 according to the present invention.

[0046] Figure 1 A perspective view of a crimping assembly 1 according to a possible embodiment of the present disclosure is shown. The crimping assembly 1 includes an anvil bushing 4 and a compression sleeve 6.

[0047] The anvil bushing 4 can be formed as a hollow cylinder 8 with a through opening 10 extending along the axis of rotation of the hollow cylinder 8. In the illustrated embodiment, the anvil bushing 4 includes a flange portion 12 at one end 16, an end portion 11 at the opposite end 18, and a crimping portion 14 between the flange portion 12 and the end portion 11.

[0048] At flange portion 12, radial flange 20 can protrude radially outward. For example, in... Figure 5 As can be seen, the radial flange 20 can serve as a support to hold the anvil bushing 4 between the two halves 22a, 22b surrounding the housing 24 of the crimping assembly 1. The radial flange 20 may include a circumferential groove 26 for inserting a helical spring (not shown) to establish an electrical connection between the anvil bushing 4 and the housing 24.

[0049] In the crimping portion 14, at least one retaining shoulder 28 may be formed on the outer peripheral surface 30 of the anvil bushing 4. The at least one retaining shoulder 28 of the illustrated exemplary embodiment may be formed by at least one radially outwardly projecting protrusion 32 extending continuously along the circumference of the anvil bushing 4. More specifically, the at least one retaining shoulder 28 may be at least a raised peripheral portion 34 extending continuously along the circumference of the anvil bushing 4.

[0050] Alternatively, the at least one retaining shoulder 28 may extend discontinuously along the circumference of the anvil bushing 4. More specifically, the at least one retaining shoulder 28 may extend intermittently along at least a portion of the outer peripheral surface 30 of the anvil bushing 4, for example, in the shape of a symmetrically arranged dome-shaped head (not shown).

[0051] In another alternative embodiment, the retaining shoulder 28 may be formed by at least one radially inward recessed groove (not shown) that extends continuously or discontinuously along the circumference of the anvil bushing 4.

[0052] exist Figure 3 In the cross-sectional view, the at least one retaining shoulder 28, which takes the form of the at least one raised peripheral portion 34, is shown as having a circular outline. Alternatively, the at least one retaining shoulder 28 may have one of a semi-circular, square, trapezoidal, or prismatic outline.

[0053] Optionally, such as Figure 2 , 3 As shown in Figure 4, the spacer portion 36 may be integrally formed between the crimp portion 14 and the flange portion 12 of the anvil bushing 4. The spacer portion 36 may include a step 38, wherein at least one end face 40 of the step 38 may serve as an end stop abutting the compression sleeve 6.

[0054] like Figure 3 As shown, the compression sleeve 6 can be a thin-walled cylinder 42 with a constant inner diameter ID, 44, and the inner diameter ID, 44 of the compression sleeve 6 is greater than the outer diameter OD, 46 of the retaining shoulder 28. In the exemplary embodiment shown, the outer diameter OD, 46 of the retaining shoulder 28 is greater than the outer diameter OD, 47 of the end portion 11.

[0055] As from Figure 4 and Figure 5 As can be seen, the compression sleeve 6 can be coaxially arranged relative to the anvil bushing 4. More specifically, the compression sleeve 6 and the anvil bushing 4 can be aligned along a common central axis 48. Preferably, the compression sleeve 6 can be fitted onto the anvil bushing 4, at least to position 50, where the compression sleeve 6 partially overlaps with the crimping portion 14 of the anvil bushing 4. At position 50, the retaining shoulder 28 of the anvil bushing 4 preferably faces the direction of the inner surface 52 of the compression sleeve 6.

[0056] The inner diameter ID, 44 of the compression sleeve 6 is preferably configured such that the inner surface 52 of the compression sleeve 6 is at least spaced apart from the conductive part 54 of the shielded cable 56 when the conductive part 54 is in contact with or at least fitted onto the outer peripheral surface 30 of the anvil bushing 4, and the compression sleeve 6 is in position 50. In particular, the compression sleeve 6 may be adapted to receive the anvil bushing 4, forming a constant-width annular gap 53 in at least one axial position. This is in Figure 4 This is further illustrated in the text.

[0057] In the exemplary embodiment shown, the conductive component 54 may be the cable shield 58 of the shielded cable 56. More specifically, the shielded cable 56 may include a main conductor 60 extending along the axial direction 62 of the shielded cable 56, a first inner cable insulation layer 64 surrounding the main conductor 60, a shielding braid 66 acting as the cable shield 58 and surrounding the first inner cable insulation layer 64, and a second outer cable insulation layer 65 surrounding the shielding braid 66.

[0058] The shielding braid 66 may be at least partially widened in the fitting direction 68 and fitted onto the crimped portion 14 of the anvil bushing 4. Preferably, the widened portion 70 of the shielding braid 66 may at least fit onto the retaining shoulder 28 of the anvil bushing 4. The main body 60 and the first inner cable insulation layer 64 may be inserted through the conductive opening 10 of the anvil bushing 4. The second outer cable insulation layer 65 may terminate or be cut at the widened portion 70 of the shielding braid 66.

[0059] Figure 4 A crimping assembly 1 is shown, which is prepared to deform to form a crimped connector 2 according to the invention. More specifically, the compression sleeve 6 can be compressed around the anvil bushing 4 by non-contact crimping, preferably by electromagnetic pulse technology (EMPT crimping). Alternatively, the compression sleeve 6 can be compressed around the anvil bushing 4 by mechanical crimping, such as hexagonal crimping.

[0060] Figure 5 A cross-sectional view of an exemplary embodiment of a crimp connector 2 including a crimp assembly 1 according to the invention is shown. As shown, a compression sleeve 6 is compressed around an anvil bushing 4, and a shielding braid 66 is sandwiched between the anvil bushing 4 and the compression sleeve 6. Thus, the anvil bushing 4 is electrically contacted with the shielding braid 66 of the shielded cable 56. In addition, due to the formed form-fit portion 72, the retaining shoulder 28 mechanically supports the shielding braid 66 and the compression sleeve 6.

[0061] As from Figure 6 As can be seen in the side view of the crimp connector 2, at least a portion of the surface structure 74 of the retaining shoulder 28 is pressed against the outer surface 76 of the compression sleeve 6. For this purpose, the anvil bushing 4 is constructed to be more robust than the compression sleeve 6, at least in the radial direction 78. More specifically, the compression sleeve 6 contracts uniformly in the radial direction 78 and visually presents the shape of the undeformed anvil bushing 4. In embodiments where the compression sleeve is deformed by EMPT crimping or high-precision mechanical crimping, the surface 74 of the shielding braid 66 may also be pressed against the outer surface 76 of the compression sleeve 6.

[0062] Figure 7 A cross-sectional view of the crimped connector 2 perpendicular to the central axis 48 is shown. As shown, the anvil bushing 4 can make uniform contact with the shielding braid 66 along the entire circumference of the anvil bushing 4.

[0063] Next, refer to Figures 1 to 7 A crimping method according to the present invention is described. The crimping method includes providing, as... Figures 1 to 3The steps of crimping assembly 1 and cable shown are described, wherein the cable has a conductive component 54, which is preferably a shielded cable 56 with a shielded braid 66. The conductive component 54 is arranged between a retaining shoulder 28 and a compression sleeve 6, the retaining shoulder 28 extending circumferentially on the outer surface, preferably the outer peripheral surface 30, of the anvil bushing 4. More specifically, the conductive component 54 is arranged between the retaining shoulder 28 and the inner surface 52 of the compression sleeve 6. When the conductive component 54 is a shielded braid 66, the shielded braid 66 can be at least partially widened and fitted over the retaining shoulder 28 of the anvil bushing 4, as shown... Figure 4 As shown. Then, the compression sleeve 6 is compressed in the radially inward direction 78. Therefore, the conductive member 54 is at least sandwiched between the retaining shoulder 28 and the compression sleeve 6. The resulting crimped connector 2 is in Figures 5 to 7 As shown in the image.

Claims

1. A crimp assembly (1) for electrically contacting a conductive part (54) of an electrical cable, wherein the crimp assembly (1) comprises an anvil bushing (4) and a compression sleeve (6), wherein the anvil bushing (4) has at least one retaining shoulder (28) extending circumferentially from an outer peripheral surface of the anvil bushing (4) to support at least a portion of the conductive part (54), and wherein the compression sleeve (6) has a constant inner diameter (ID, 44) that is larger than an outer diameter (OD, 46) of the retaining shoulder (28), wherein the compression sleeve (6) is made of an electrically conductive material, and the anvil bushing (4) is more rigid than the compression sleeve (6) at least in a radial direction (78).

2. The crimp assembly (1) of claim 1, wherein the compression sleeve (6) is adapted to receive the anvil bushing (4) to form a constant width annular gap (53) at at least one axial position.

3. The crimp assembly (1) of claim 1, wherein an outer diameter (OD, 46) of the at least one retaining shoulder (28) is larger than an outer diameter (od, 47) of at least one end portion (11) of the anvil bushing (4).

4. The crimp assembly (1) of claim 1, wherein the at least one retaining shoulder (28) is formed by a radially outwardly protruding rim (34) that extends continuously or discontinuously along a circumference of the anvil bushing (4).

5. The crimp assembly (1) of claim 1, wherein the at least one retaining shoulder (28) is formed by a radially inwardly recessed groove that extends continuously or discontinuously along a circumference of the anvil bushing (4).

6. The crimp assembly (1) of claim 1, wherein a plurality of retaining shoulders (28) are formed on the anvil bushing (4).

7. The crimp assembly (1) of claim 6, wherein the retaining shoulders (28) are discontinuous in a circumferential direction and mutually offset relative to each other in the circumferential direction at a predetermined angle.

8. The crimp assembly (1) of claim 1, wherein the crimp assembly is for electrically contacting a cable shield (58) of an electrical cable.

9. A crimp connection (2) comprising the crimp assembly (1) of claim 1, wherein the compression sleeve (6) is compressed around the anvil bushing (4), and wherein at least one conductive part (54) of a shielded electrical cable (56) is clamped between the anvil bushing (4) and the compression sleeve (6).

10. The crimp connection (2) of claim 9, wherein the anvil bushing (4) and the compression sleeve (6) are coaxially aligned along a common central axis (48) and in at least one cross-section of the crimp connection (2) perpendicular to the central axis (48), the anvil bushing (4) being in uniform contact with the conductive part (54) along an entire periphery of the anvil bushing (4).

11. The crimp connection (2) of claim 10, wherein at least some portions of the retention shoulder (28) and / or the structure of the electrically conductive component (54) are at least partially pressed onto an outer surface (76) of the compression sleeve (6).

12. The crimp connection (2) of claim 11, wherein the compression sleeve (6) is compressed around the anvil bushing (4) by non-contact crimping.

13. The crimp connection (2) of claim 9, wherein the compression sleeve (6) is compressed around the anvil bushing (4) by mechanical crimping.

14. The crimp connection (2) of claim 9, wherein at least one form-fit portion (72) is formed between the compression sleeve (6) and the at least one retention shoulder (28).

15. A crimping method comprising the steps of: Providing a crimp assembly (1) according to any one of claims 1 to 8 and a cable having an electrically conductive component (54); arranging the electrically conductive component (54) between a retention shoulder (28) and a compression sleeve (6), the retention shoulder extending circumferentially on an outer surface of an anvil bushing (4); compressing the compression sleeve (6) in a radially inward direction (78), thereby clamping the electrically conductive component (54) at least between the retention shoulder (28) and the compression sleeve (6).

15. The crimp connection (2) of claim 14, wherein the at least one form-fit portion (72) is formed by a circumferential groove (74) in the compression sleeve (6) and a circumferential ridge (70) on the retention shoulder (28).

16. The crimp connection (2) of claim 14, wherein the at least one form-fit portion (72) is formed by a circumferential ridge (70) in the compression sleeve (6) and a circumferential groove (74) on the retention shoulder (28).

17. The crimp connection (2) of claim 14, wherein the at least one form-fit portion (72) is formed by a circumferential groove (74) in the compression sleeve (6) and a circumferential groove (74) on the retention shoulder (28).

18. The crimp connection (2) of claim 14, wherein the at least one form-fit portion (72) is formed by a circumferential ridge (70) in the compression sleeve (6) and a circumferential ridge (70) on the retention shoulder (28).

Citation Information

Patent Citations

  • Shielded wire connectors

    US2904619A