CN113206394A - Preparing a crimp barrel for crimping - Google Patents
Preparing a crimp barrel for crimping Download PDFInfo
- Publication number
- CN113206394A CN113206394A CN202110108438.1A CN202110108438A CN113206394A CN 113206394 A CN113206394 A CN 113206394A CN 202110108438 A CN202110108438 A CN 202110108438A CN 113206394 A CN113206394 A CN 113206394A
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- China
- Prior art keywords
- crimp
- crimping
- curvature
- barrel
- base
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
- H01R4/203—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve having an uneven wire-receiving surface to improve the contact
- H01R4/206—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve having an uneven wire-receiving surface to improve the contact with transversal grooves or threads
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
- H01R4/203—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve having an uneven wire-receiving surface to improve the contact
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
- H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
- H01R9/0518—Connection to outer conductor by crimping or by crimping ferrule
Landscapes
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The invention relates to a crimp barrel (1) intended for crimping. The crimp barrel (1) according to the invention comprises a crimp base (6), the crimp base (6) being arranged between two crimp wings (4) and being provided with a support region (8) for an electrical conductor (3), wherein the support region (8) has a first curvature (10). Furthermore, respective regions (12) having a second curvature (14) are arranged on both sides of the support region (8) in the circumferential direction U, wherein at least the support region (8) is curved, wherein the curvature diameter of the second curvature (14) is smaller than the curvature diameter of the first curvature (10). It is further provided that the stiffness, in particular the bending stiffness, in the support region (8) or even in the entire crimp base (6) is less than the stiffness, in particular the bending stiffness, in the respective crimp wings (4).
Description
Technical Field
The present invention relates to a crimping barrel which is intended to be crimped in order to crimp an electrical conductor of a predetermined diameter.
Background
A crimp sleeve of the type described above is crimped onto the braided wire of the electrical conductor, for example as a support sleeve. The crimp barrel is matched in size or geometry to the diameter of the electrical conductor. For an electrical conductor having a predetermined diameter, a crimp barrel provided for this diameter can thus be used to crimp the electrical conductor. The crimp barrel may serve there as a support for an electrical contact which may be crimped around the crimp barrel to terminate an electrical conductor. It is important that the individual strands or the shield wires of the electrical conductor do not protrude radially from the crimp barrel or sink into the crimp seam. This problem leads to scrap in the production of crimped conductors. In order to prevent the cable or the shielding wire from becoming jammed or protruding, a special crimping tool can be used, which is provided, for example, with a spring assembly for pressing the electrical conductor onto the support region of the crimping barrel during crimping. However, such crimping tools are very specific and not always available at the point of use.
It is therefore an object of the present invention to produce a crimping barrel which is prepared for crimping and which reduces the risk of incorrect production during crimping.
Disclosure of Invention
According to the invention, this object is achieved by a crimping barrel which is prepared for crimping in order to crimp an electrical conductor of a predetermined diameter, wherein the crimping barrel comprises a crimping base which is arranged between two crimping wings and is provided with a support region for the electrical conductor having a first curvature. According to a further feature of the invention, regions of a second curvature are provided on both sides of the support region, the second curvature having a smaller curvature diameter than the first curvature. It is further provided that the crimp base has a lower stiffness than the crimp wings, in particular a bending stiffness.
In this context, preparing the crimp barrel for crimping describes an initial state of the crimp barrel in which the crimp barrel has not yet been deformed to crimp onto the electrical conductor.
According to the solution of the invention, the geometry of the crimp barrel is optimized before the deformation, so that the crimp base is deformed first during crimping, so that the curvature diameter of the first curvature is adapted to the curvature diameter of the second curvature. In a final step, the crimping wings press the electrical conductor against the support area before the crimping wings are bent. Regardless of the crimping tool, it is possible in this way to ensure that the electrical conductor is pressed against the support region during the crimping process, in particular before the crimping wings bend, so that the individual strands or the shielding wires are prevented from becoming trapped in the crimping gap between the two crimping wings. Since the crimping barrel for crimping is adapted to a predetermined diameter or a predetermined diameter range, a particularly optimized crimping barrel can be provided for different electrical conductors.
In the following, further developments are given which can be combined with one another independently as required and which are advantageous per se.
For example, the support regions may be spaced apart from each region on both sides with the second curvature. The crimp base may extend in a circumferential direction beyond a support region, the support region being curved along the circumference and having a first curvature. The crimp base may preferably have an end-to-end curvature in the circumferential direction such that the crimp base forms a depression. Thus, even if initially incorrectly positioned, the electrical conductors can be automatically aligned in the circumferential direction by sliding along the inner wall of the crimp base in the support area.
The crimp barrel may preferably be curved in the circumferential direction and receive the electrical conductor in the axial direction. For this purpose, at least the support region can have a convexly curved support region. The crimping wings can be arranged on both sides of the crimping base in the circumferential direction, wherein the regions with the second curvature can preferably be sections of the respective crimping wings which adjoin the crimping base.
To ensure the best possible fit of the electrical conductor in the crimp barrel, the curvature diameter of the first curvature may be greater than the predetermined diameter of the electrical conductor. A secant between both ends of the crimp base arranged opposite to each other in the circumferential direction may preferably be larger than a predetermined diameter. This ensures that the electrical conductor is pressed against the support region without being subjected to the resistance of the crimping base.
The support region may extend in the axial direction to the separating web. The separating web can be used, for example, for better handling of the crimping barrel and resting on the crimping tool. During crimping, the separating web can be removed from the rest of the crimp barrel, for example, by cutting it off or punching it off.
To further optimize the geometry of the crimp barrel, the diameter of curvature of the second curvature may substantially correspond to the predetermined diameter. Thus, during crimping, the respective regions can be pressed against the outer surface of the electrical conductor without being deformed.
According to a further advantageous embodiment, the region with the second curvature may exhibit a greater stiffness than the support region, in particular the crimping base and the crimping wings. If these regions form part of the crimp wings, each region may exhibit greater stiffness than the remainder of each crimp wing. This ensures that the area is not significantly deformed during crimping. First, the crimp base is bent until the area is flush with the outer surface of the electrical conductor, and the curvature diameter of the crimp base substantially corresponds to the predetermined diameter. In a final step, the wings are bent to engage the crimp barrel around the electrical conductor.
For example, greater rigidity can be produced because at least these regions have at least one corrugation, that is to say depressions or elevations introduced perpendicularly to the surface. The at least one corrugation may be shaped as a radially protruding stiffening rib, for example on a convexly curved inner surface of the region. Preferably, two reinforcing ribs may be provided spaced apart from each other in the axial direction.
Since these reinforcing ribs are pressed against the electrical conductor in the crimped state, the electrical conductor can additionally be axially fixed by the reinforcing ribs. The axial fixation can be further improved if the corrugations are as sharp as possible.
The corrugation, which may in particular be embossed, may be realized in various ways.
If the foothold of the electrical conductor is to be reinforced further in the axial direction, the at least one corrugation may extend in the circumferential direction, preferably end to end, from one area to another area on the crimping base and/or the support area. Although this may increase the stiffness of the crimp base, this may be compensated for by different measures. For example, the material thickness of the crimp wings may be adjusted such that the stiffness of the crimp base is still less than the stiffness of the crimp wings and/or regions.
According to another advantageous embodiment, the stiffness of the crimp base may be reduced by a recess in the crimp base. The recess may preferably extend from one end of the crimp base in the circumferential direction toward the opposite end.
The recess may be configured to be elongated in a circumferential direction and to have a uniform depth in a radial direction transverse to the circumferential direction. The recess may pass through the crimp barrel in a radial direction, forming a window framed by the remainder of the crimp base. Due to the recess, the rigidity of the crimping base can be greatly reduced without difficulty, so that the increase in rigidity caused by the corrugation can be balanced.
The recess may be arranged between two corrugations in the axial direction. The recess may preferably have a central axis extending in the circumferential direction and at the same time form an axis of symmetry of the crimp barrel. It can then be ensured that the crimp barrel is deformed uniformly in the axial direction during the crimping process.
According to a further advantageous embodiment, the crimping wings or the remaining part of the crimping wings can extend substantially straight from the respective region to the free end. The remaining portions of the or each crimping wing in the initial state prior to crimping may preferably extend at an angle inclined away from each other such that the net width between the oppositely disposed crimping wings widens towards the free end. This prevents individual strands or shields from sticking to the crimp wings when inserting the electrical conductors into the crimp barrel. This can be achieved, for example, in that the region with the second curvature extends at an angle of at most approximately 90 °.
In order to be able to fix the crimp barrel in the crimped state, the crimp wings can have form-fitting elements which are complementary to one another. The form-fitting elements can preferably be arranged at the respective free ends and by form-fitting prevent the crimp barrel from opening, since the crimp wings move in the opposite circumferential direction.
The complementary form-fitting elements may be formed, for example, by interengaging tabs. For example, at one free end, two tabs may be arranged spaced apart from each other in the axial direction, and the shoulders project from each other in the axial direction. Two complementary tabs, which may be interposed between the tabs at a first free end, may be integrally formed at the other free end, and each have shoulders that project from each other in the axial direction. The shoulder of the tab and the shoulder of the complementary tab may then form a form fit in the circumferential direction.
The crimp assembly may include an electrical conductor having a predetermined diameter and a crimp barrel according to one of the foregoing configurations. At least prior to crimping, the crimp base may include a support region having a curvature with a diameter greater than the predetermined diameter. The region having the second curvature may preferably have a diameter of curvature substantially corresponding to the predetermined diameter. Thus, during crimping, these regions may abut against the outer surface of the electrical conductor, while the crimping base (particularly the support region) is bent around the electrical conductor.
In a final step of the crimping process, the remaining part of the crimping wings or of the individual crimping wings can press the electrical conductor against the support region and likewise against the outer surface of the electrical conductor during crimping, respectively, before the crimping wings are bent.
Preferably, the electrical conductor has a cross-sectional geometry in a cross-section transverse to the axial direction, which cross-sectional geometry is almost identical before and after crimping. The crimp may be, for example, an O-crimp, an overlap crimp, or a wrap crimp. Thus, the crimp barrel may serve as a support barrel and be configured in such a way as not to enter the conductor or its insulator.
Hereinafter, the present invention will be described in more detail using embodiments with reference to the accompanying drawings. In the figures, elements that correspond to one another in terms of structure and/or function are provided with the same reference numerals.
The combination of features shown and described in the various embodiments is for illustration purposes only. From the above explanation, features of the embodiments may be omitted if the technical effect of the embodiments is not important in a particular application. Conversely, according to the above description, another feature may be added to an embodiment if a technical effect of the embodiment is advantageous or necessary for a specific application.
Drawings
FIG. 1 shows a schematic perspective view of an exemplary embodiment of a crimp barrel according to the present disclosure;
FIG. 2 shows a schematic front view of the crimp barrel prior to crimping;
FIG. 3 shows a schematic front view of the crimp barrel of FIG. 2 during crimping; and
fig. 4 shows a schematic perspective view of the crimp barrel of fig. 1 in a closed state.
Detailed Description
An exemplary embodiment of a crimp barrel 1 for crimping according to the invention is explained in more detail below with reference to fig. 1 to 4.
The crimp barrel 1 may be configured as a shielded crimp and may serve as a support barrel 2. Thus, the crimp barrel 1 may be crimped to the electrical conductor 3, for example, as a wrap-around crimp, an overlap crimp or an O-crimp. The support sleeve 2 can serve as a support for further crimp connections in the crimping region, for example for terminating the electrical conductors 3. The crimp assembly 52 may include an electrical conductor 3 and a crimp barrel 1 according to the present invention.
The crimp barrel 1 according to the invention comprises a crimp base 6, which crimp base 6 is arranged between two crimp wings 4 and is provided with a support region 8 for the electrical conductor 3, wherein the support region 8 has a first curvature 10. Furthermore, regions 12 having a second curvature 14 are arranged on both sides of the support region 8 in the circumferential direction U, wherein at least the support region 8 is curved, wherein the curvature diameter of the second curvature 14 is smaller than the curvature diameter of the first curvature 10. It is further provided that the stiffness, in particular the bending stiffness, in the support region 8 or even in the entire crimp base 6 is less than in the respective crimp wings 4.
Due to the optimized geometry of the crimp barrel 1 according to the invention, the first deformation can occur at the support region, in particular at the crimp base 6. In the process, the crimping base 6 is bent around the electrical conductor 3, while the crimping wings 4 press the electrical conductor against the support area 8. The individual strands or the shielding wires of the electrical conductor can then be prevented from being clamped in the crimp joint between the two crimp wings 4 or even projecting in the radial direction during crimping. Thus, even without special crimping tools, the risk of incorrect production during crimping can be reduced.
The crimp barrel 1 may preferably be integrally formed as a unitary component, for example, by a stamping and bending process.
The regions 12 may each be spaced apart from the support region 8 in the circumferential direction U. The crimping base 6 can extend away on the support region 8 on both sides of the circumferential direction U and preferably adjoin the respective region 12 on both sides of the circumferential direction U. The regions 12 may preferably represent sections 16 of the respective crimping wings 4, wherein the regions 12 adjoin the crimping base 6 and the remaining portions 18 of the respective crimping wings 4 extend from the respective regions 12 to the free end 20, in particular in a straight line.
The crimping base 6 may be continuously curved in the circumferential direction U having the first curvature 10 from an end 22 adjacent to the region 12 to an end 22 adjacent to the oppositely disposed region 12. Thus, the recess 24 is formed with a convexly curved inner surface, through which recess 24 the electrical conductor 3 automatically slides to the support area 8 located at the extreme.
If the crimp base 6 has an end-to-end curvature in the circumferential direction U, the crimp base 6 can be accurately distinguished from the region 12 by a change in curvature.
The crimp barrel 1 can be curved in a convex manner in the transverse direction Q and extends in a straight manner in an axial direction a perpendicular to the transverse direction Q. Thus, the crimp barrel 1 forms a slot 26 into which the electrical conductor can be inserted in the axial direction a.
As shown in fig. 2, the cut line 31 extending from one end 22 of the crimp base to the other end 22 of the crimp base may preferably be longer than the predetermined diameter 30 of the electrical conductor 3. It is thereby ensured that the electrical conductor 3 can be inserted into the crimp barrel 1 without problems before crimping and can be pressed against the support region 8. The curvature diameter of the first curvature 10 may preferably be larger than the predetermined diameter 30.
As shown in fig. 1, the crimp base 6, in particular the support region 8, may extend in an axial direction a transverse to the circumferential direction U to the separating web 28. The separating webs 26 can be used, for example, for better handling of the crimp barrel 1 and can be removed during the crimping process, for example, by punching or cutting off, so that after the crimping process, at most one root is still arranged on the crimped crimp barrel 1.
To avoid deformation of the region 12 during crimping, the region 12 may exhibit greater stiffness, particularly bending stiffness, than the crimp base 6 and the crimp wings 4. In the embodiment shown in fig. 1, the region 12 is a portion of each crimp wing 4. In the present embodiment, the regions 12 may exhibit a greater stiffness, in particular a bending stiffness, than the respective remaining portion 18, i.e. the respective free end 20 of the respective crimp wings 4.
As can be seen from fig. 1 and 4, the stiffness, in particular the bending stiffness, of the region 12 can be increased by means of corrugations 34 in the form of embossed stiffening ribs 36.
In the illustrated embodiment, the reinforcing ribs 36 may be embossed in a radially outwardly facing jacket surface 38 of the crimp barrel 1, thereby creating depressions on the jacket surface 38, and the reinforcing ribs 36 project radially inwardly on the inner surface of the crimp barrel 1, particularly in the region 12. A plurality of reinforcing ribs 36 may also be provided. For example, in the embodiment shown there are two reinforcing ribs 36 which are spaced apart parallel to one another in the axial direction a and extend in the circumferential direction U, wherein the reinforcing ribs 36 extend end to end via the crimp base 6 from one end of the region 12 adjoining the remainder 18 to the other end of the region 12 opposite.
Although this also increases the stiffness of the crimp base 6, the reinforcing ribs 36 may be used to axially secure the electrical conductors 3, particularly if they are sharp. In order to further reduce the stiffness of the crimp base 6, according to an exemplary embodiment, a recess 40 is provided extending in the circumferential direction U between the two ends 22 of the crimp base 6. Of course, the recess can also be provided independently of the reinforcing ribs 36 on the crimp base 6.
The recess 40 may preferably be arranged axially centrally between the two reinforcing ribs 36, such that a central axis 42 of the recess 40 extending in the circumferential direction U is arranged in a symmetry plane transverse to the axial direction a. This can prevent the bending behavior of the crimp barrel 1 from being different in the axial direction a, with the result that uneven crimping occurs in the axial direction a.
The recess 40 may be configured, for example, as a depression or, as seen in the drawing, as a window 44 penetrating the crimp base 6 in the radial direction.
The crimping wings 4 or the remaining portions 18 of the respective crimping wings 4, respectively, may extend substantially straight away from the respective areas 12. The angle over which the regions 12 extend is preferably at most about 90 deg., so that the crimping wings 4 are inclined away from each other. Thus, the net width between the crimping wings 4 may widen in the direction towards the free end 20. This prevents individual strands and/or shield wires of the conductor from becoming entangled on the crimp wings 4 or being deflected by the crimp wings 4 when the electrical conductor 3 is inserted prior to crimping.
The crimping wings 4 may be provided with outwardly facing inclined surfaces 48 on a side thereof facing away from the oppositely disposed crimping wings 4, wherein the inclined surfaces 48 are configured to slide along mating surfaces of the crimping tool. When sliding, a force can be exerted on the crimp wings 4 in a first step, wherein the bending moment generated by this force exceeds the bending stiffness in the crimp base 6. This results in a plastic deformation of the crimp barrel 1 at the crimp base 6, wherein the crimp base 6 bends around the electrical conductor 3. As shown in fig. 3, the crimping wings 6 therein press the electrical conductor 3 against the support area 8 without deformation.
The crimping wings 4 can then be bent around the electrical conductor 3 in a second step of the crimping process, so that the crimping barrel 1 engages around the electrical conductor 3. For locking the crimp barrel 1, the crimp wings 4 may comprise form-fitting elements 50 which are complementary to one another at their respective free ends 20.
The mutually complementary form-fitting elements 50 can be configured as tabs 51 which engage behind one another, so that the crimp wings 4 can be prevented by form-fitting from opening away from one another in the circumferential direction U.
Reference numerals
1 crimping bobbin
2 supporting bobbin
3 electric conductor
4 crimping wing
6 crimping base
8 support area
10 first curvature
14 second curvature
16 sections
18 remainder of the
20 free end
22 crimping the ends of the base
24 depressions
26 groove
28 separating web
30 predetermined diameter
32 outer surface
34 wave
36 reinforcing rib
38 jacket surface
40 recess
42 central axis
44 window
48 inclined surface
50 form-fitting element
51 protruding piece
52 crimping assembly
Axial direction A
Q transverse direction
In the U circumferential direction
Claims (15)
1. A crimp barrel (1) prepared for crimping to crimp an electrical conductor (3) of a predetermined diameter (30), wherein the crimp barrel (1) comprises a crimp base (6) which is arranged between two crimp wings (4) and is provided with a support region (8) having a first curvature (10) for the electrical conductor (3), wherein respective regions (12) having a second curvature (14) are arranged on both sides of the support region (8), wherein the curvature diameter of the second curvature (14) is smaller than the curvature diameter of the first curvature (10), and wherein the stiffness of the crimp base (6) is smaller than the stiffness of the crimp wings (4).
2. The crimp barrel (1) ready for crimping as claimed in claim 1, wherein the regions (12) with the second curvature are respective sections (16) of the respective crimp wings (4) which respectively adjoin the crimp base (6).
3. The crimp barrel (1) ready for crimping according to claim 1 or 2, wherein the crimp base (6) is bent end to end and has the first curvature (10).
4. The crimp barrel (1) ready for crimping as claimed in one of claims 1 to 3, wherein the region (12) has a greater stiffness than the crimp base (6) and the rest (18) of the respective crimp wing (4).
5. The crimp barrel (1) prepared for crimping according to one of claims 1 to 4, wherein at least the region (12) is provided with at least one corrugation (34).
6. Crimp barrel (1) ready for crimping according to claim 5, wherein the at least one corrugation (34) is embossed.
7. The crimp barrel (1) ready for crimping according to claim 5 or 6, wherein the at least one corrugation (34) extends end to end from one region (12) to the other region (12) via the crimp base (6).
8. The crimp barrel (1) ready for crimping according to one of claims 1 to 7, wherein the crimp base (6) is provided with at least one recess (40).
9. The crimp barrel (1) ready for crimping according to one of claims 1 to 8, wherein the at least one recess (40) penetrates the crimp base (6).
10. Crimp barrel (1) ready for crimping according to claim 8 or 9, wherein the at least one recess (40) extends between the ends (22) of the crimp base (6) adjoining the respective area (12).
11. Crimp barrel (1) ready for crimping according to one of claims 1 to 10, wherein the crimping wings (4) extend in a linear manner to a free end (20).
12. The crimp barrel (1) ready for crimping as claimed in one of claims 1 to 11, wherein the crimping wings (4) are provided with form-fitting elements (50) complementary to one another in order to prevent the crimp barrel (1) from opening in the crimped state by form-fitting.
13. Crimp barrel (1) ready for crimping according to one of claims 1 to 12, wherein the mutually complementary form-fitting elements (50) are shaped as tabs (51) which are adapted to engage behind one another.
14. Crimp assembly (52) comprising an electrical conductor (3) having a predetermined diameter (30) and a crimp barrel (1) prepared for crimping according to one of claims 1 to 13, wherein the curvature diameter of the first curvature (10) is larger than the predetermined diameter (30) at least before crimping, and wherein the curvature diameter of the second curvature (10) corresponds to the predetermined diameter (30) at least before crimping.
15. The crimping assembly (52) as claimed in claim 14, wherein the cross-sectional geometry of the electrical conductor (3) is substantially the same before and after crimping.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020201137.0A DE102020201137A1 (en) | 2020-01-30 | 2020-01-30 | Crimp barrel prepared for crimping |
| DE102020201137.0 | 2020-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113206394A true CN113206394A (en) | 2021-08-03 |
Family
ID=74418289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110108438.1A Pending CN113206394A (en) | 2020-01-30 | 2021-01-27 | Preparing a crimp barrel for crimping |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3859895B1 (en) |
| CN (1) | CN113206394A (en) |
| DE (1) | DE102020201137A1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2555709C2 (en) | 1975-12-11 | 1986-05-15 | Grote & Hartmann Gmbh & Co Kg, 5600 Wuppertal | Conductor claw on electrical crimp connectors as well as method and device for their shaping |
| DE102015201635A1 (en) | 2015-01-30 | 2016-08-04 | Te Connectivity Germany Gmbh | Contact element and assembly arrangement with selbigem |
| DE102017217476A1 (en) * | 2017-09-29 | 2019-04-04 | Te Connectivity Germany Gmbh | Support sleeve for an electric cable |
-
2020
- 2020-01-30 DE DE102020201137.0A patent/DE102020201137A1/en active Pending
-
2021
- 2021-01-27 CN CN202110108438.1A patent/CN113206394A/en active Pending
- 2021-01-29 EP EP21154322.8A patent/EP3859895B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP3859895A1 (en) | 2021-08-04 |
| EP3859895B1 (en) | 2023-07-26 |
| DE102020201137A1 (en) | 2021-08-05 |
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