CN113285331A - Method for connecting head of connector with cable and cable connecting structure - Google Patents

Method for connecting head of connector with cable and cable connecting structure Download PDF

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Publication number
CN113285331A
CN113285331A CN202110566552.9A CN202110566552A CN113285331A CN 113285331 A CN113285331 A CN 113285331A CN 202110566552 A CN202110566552 A CN 202110566552A CN 113285331 A CN113285331 A CN 113285331A
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China
Prior art keywords
cable
groove
connector
shell
head
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Pending
Application number
CN202110566552.9A
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Chinese (zh)
Inventor
陈光明
徐辉
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Haigu Technology Suzhou Co Ltd
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Haigu Technology Suzhou Co Ltd
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Publication date
Application filed by Haigu Technology Suzhou Co Ltd filed Critical Haigu Technology Suzhou Co Ltd
Priority to CN202110566552.9A priority Critical patent/CN113285331A/en
Publication of CN113285331A publication Critical patent/CN113285331A/en
Pending legal-status Critical Current

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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
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The invention discloses a method for connecting a connector head and a cable, which comprises the following steps: a groove is formed in the position, connected with the shell, of the outer side of the end of the cable, the end of the cable is stripped to form a connectable part, the head of the connector is connected with the connectable part of the end of the cable, and a groove wall is formed in one side, close to the head of the connector, of the groove; and continuously injecting the connector head and the outer side of the cable end to form an injection molding shell, and forming a transverse bulge filled in the groove on the inner side of the injection molding shell. The connecting method between the connector head and the cable can effectively solve the problem that the tensile property of the connecting part of the cable is poor at present. The invention also discloses a cable connecting structure.

Description

Method for connecting head of connector with cable and cable connecting structure
Technical Field
The invention relates to the technical field of cables, in particular to a connecting method between a connector head and a cable, and further relates to a cable connecting structure.
Background
The connection mode of the connector head and the wire is generally compression joint or welding, in order to protect the connection of the terminal and the wire, injection molding is generally carried out on the outer side of the connection position of the terminal and the wire, and the shell encapsulation formed by injection molding provides waterproof insulation and the function of protecting the connection. One end of the shell is connected with a positioning piece of the connector, and the other end of the shell is connected with the wire harness connector, so that the bonding degree of the shell encapsulation and the positioning piece and the wire plays an important role in the reliability of the connector, the bonding degree is usually detected through a waterproof test and a drawing test, the bonding degree of the shell encapsulation and the connector is usually improved by the positioning piece tail part or a groove, and the wire is usually unqualified in waterproof and not pulled off due to the fact that the surface area of the outer sheath is small and the appearance of the wire is smooth, and the bonding degree of the shell encapsulation and the wire is not high.
In summary, how to effectively solve the problem of poor tensile strength at the cable connection is a problem that needs to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above, a first object of the present invention is to provide a method for connecting a connector header and a cable, which can effectively solve the problem of poor tensile strength at the connection position of the cable, and a second object of the present invention is to provide a cable connection structure.
In order to achieve the first object, the invention provides the following technical scheme:
a method of connecting between a connector head and a cable, comprising the steps of:
a groove is formed in the position, connected with the shell, of the outer side of the end of the cable, the end of the cable is stripped to form a connectable part, the head of the connector is connected with the connectable part of the end of the cable, and a groove wall is formed in one side, close to the head of the connector, of the groove;
and continuously injecting the connector head and the outer side of the cable end to form an injection molding shell, and forming a transverse bulge filled in the groove on the inner side of the injection molding shell.
In the method for connecting the connector head and the cable, the wire is not directly stripped, connected and injected, but before injection molding, a groove is formed in the position of a connecting shell on the outer side of the end of the cable, the groove is provided with a groove wall on one side close to the connector head, then injection molding is carried out, fluid plastic enters the groove and fills the groove to form a transverse protrusion. The acting force in the extending direction of the cable is transmitted through the transverse bulge and the groove wall of the groove close to the connector head. Then make the shell of moulding plastics can with the better transmission pulling force of cable, and then guarantee the position that the cable passes through connector head and connects, form better tensile property. In summary, the connection method between the connector head and the cable can effectively solve the problem that the tensile property of the connection part of the cable is poor at present.
Preferably, a groove is formed in a position where the outer side of the end of the cable is connected with the outer shell, and the end of the cable is stripped to form a connectable portion, specifically:
clamping the wire stripping position of the end part of the cable, and then forming a groove at the position of the outer side of the end part of the cable, which is connected with the shell;
after the grooves are formed, the wire stripping position of the end part of the cable is loosened, and then wire stripping is carried out at the wire stripping position of the end part of the cable to form a connectable part.
Preferably, the groove is formed, and specifically:
an annular groove is arranged.
Preferably, the annular groove is provided with:
the outer side of the cable sheath is provided with a spiral annular groove or a plurality of circumferential annular grooves which are axially arranged in parallel.
Preferably, the cross section of the annular groove is V-shaped or U-shaped.
In order to achieve the second object, the invention further provides a cable connection structure, which includes a cable and a connector connected to a conductor in the cable, wherein a groove is formed on the outer side of the end of the cable, an injection molded shell is continuously injection molded on the outer sides of the connector head and the end of the cable, and a transverse protrusion located in the groove is formed on the inner side of the injection molded shell. Since the above-mentioned connecting method between the connector head and the cable has the above-mentioned technical effects, the cable connecting structure adopting the same connecting method as the connecting method between the connector head and the cable should also have the corresponding technical effects.
Preferably, the groove is an annular groove.
Preferably, the groove is a spiral annular groove or a plurality of circumferential annular grooves arranged in parallel in the axial direction, and the spiral annular groove or the circumferential annular grooves are formed in the outer side of the cable sheath.
Preferably, the cross section of the annular groove is V-shaped or U-shaped.
Preferably, the injection moulded housing forms a cavity on a side of the connector remote from the cable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flow chart of a connection method between a connector header and a cable according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a cable connection structure according to an embodiment of the present invention;
fig. 3 is an assembly diagram of a connector header and a cable according to an embodiment of the invention.
The drawings are numbered as follows:
cable 1, connector head 2, injection molded housing 3, connectable portion 11, groove 12.
Detailed Description
The embodiment of the invention discloses a method for connecting a connector head and a cable, which is used for effectively solving the problems of poor tensile property and poor waterproofness of the connection part of the cable at present.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, fig. 1 is a flowchart illustrating a connection method between a connector header and a cable according to an embodiment of the invention; fig. 2 is a schematic structural diagram of a cable connection structure according to an embodiment of the present invention; fig. 3 is an assembly diagram of a connector header and a cable according to an embodiment of the invention.
In a specific embodiment, the present embodiment provides a connection method between a connector header and a cable for connecting the connector header 2 and the cable 1. Specifically, the method for connecting the connector head 2 and the cable 1 mainly comprises the following steps:
step 100: a groove 12 is arranged at the position of the outer side of the end part of the cable 1 connected with the shell, the end part of the cable is stripped to form a connectable part 11, and the connector head part 2 is connected with the connectable part at the end part of the cable 1, wherein the groove 12 is provided with a groove wall at one side close to the connector head part 2.
The position of the connecting shell outside the end of the cable 1 refers to the position of the outer side of the end of the cable 1, which needs to be contacted with the shell, and mainly refers to the position of the sheath of the cable 1, which needs to be contacted with the injection molding shell 3. The recess 12 is provided in this case so that the injection-molded housing 3 can be wrapped around the recess 12 during injection molding. The position of the connecting shell is a non-stripping position, and the specific position is correspondingly selected according to the required connection length between the injection molding shell 3 and the sheath of the cable 1.
It is also necessary to strip the end of the cable 1 to form a connectable portion 11 for connection to the connector head 2, and to connect the connector head 2 to the connectable portion 11 at the end of the cable 1 after the stripping is completed, wherein the connection is mainly welding, crimping, or the like. The end part of the cable 1 is stripped, and a sheath at the end part of the cable 1 and an insulating layer at the outer part of a conductor are mainly stripped.
It should be noted that, the order of wire stripping, slotting and connecting can be set correspondingly according to the need, for example, the wire stripping can be performed first, then the slotting is performed, and finally the connection between the connector head 2 and the end of the cable 1 is performed; it is even possible to perform the grooving after the connection is completed. The groove 12 is formed, and mainly the groove 12 is formed with a notch facing outwards, and the groove 12 may extend circumferentially or axially, but it should be noted that, when extending axially, the groove 12 should have groove end walls at both ends, that is, the groove 12 should have a groove wall at a side close to the connector head 2 in the extending direction of the cable 1. The purpose of the wire stripping is to strip the outer sheath and the insulating layer on the surface of the conductor at the outer side of the end of the cable 1, wherein the stripping length and different parts have different requirements, so as to be capable of being connected with the connector head 2, but it should be noted that the position where the end of the cable 1 is connected with the shell should not be stripped and is close to the position of the wire stripping.
Step 200: the connector head 2 and the end of the cable 1 are continuously injected outside to form an injection molded housing 3, and a lateral protrusion located in the groove 12 is formed inside the injection molded housing 3.
I.e. after the grooving, stripping and connecting are completed, injection moulding is required to form the injection moulded shell 3 by injection moulding. It should be noted that, when the injection molding of the housing is performed, it is ensured that the injection molding is performed at the groove 12 of the cable end, the connection of the cable 1 and the connector head 2, and the injection molding is performed continuously to form the unified injection molding housing 3. Since the injection-molded housing 3 is injection-molded at the groove 12, a lateral protrusion filling the groove 12 is formed inside the injection-molded housing 3. The transverse projection is now in contact with the groove wall of the groove 12, in particular against the groove wall in the direction of extension of the cable 1, in order to be able to transmit forces in the direction of extension of the cable 1.
In the connection method between the connector head 2 and the cable 1, instead of directly stripping, connecting and injection molding, before injection molding, a groove 12 is formed in the position of the connection shell on the outer side of the end of the cable 1, and a groove wall is formed on one side, close to the connector head 2, of the groove 12, and then injection molding is carried out, so that fluid plastic enters the groove 12 to fill the groove 12 to form a transverse protrusion. The force in the direction of extension of the cable 1 is transmitted via the transverse projection and the groove wall of the groove 12 close to the connector head 2. Then make the shell 3 of moulding plastics can with the better transmission pulling force of cable 1, and then guarantee the position that cable 1 passes through connector head 2 and connect, form better tensile properties. In summary, the connection method between the connector head 2 and the cable 1 can effectively solve the problem that the tensile strength of the connection part of the cable 1 is poor at present.
Further, in consideration of the flexibility of the cable 1, when the groove 12 is formed on the outer side of the cable 1, it is necessary to secure a position where the groove 12 is formed in the cable 1 and maintain a certain strength. This requires clamping and fixing both ends of the position where the groove 12 is formed, and if wire is stripped in advance, the connectable portion 11 is easily clamped, and the connectable portion 11 is easily damaged, that is, if the connectable portion 11 is connected to the connector header 2, the connector header 2 needs to be clamped, and the connector header 2 is also easily damaged. In order to effectively avoid damage to the connectable part 11 or the connector head 2, it is preferred here to perform the grooving 12 before stripping. At this time, the clamping device can clamp two ends of the connecting shell, namely the position of stripping the wires and the other end of the connecting shell, and then the groove 12 is formed at the connecting shell position. Specifically, a groove 12 may be formed in a position where the outer side of the end of the cable 1 is connected to the housing, and the end of the cable 1 is stripped to form a connectable portion 11, specifically: clamping the wire stripping position of the end part of the cable 1, and then arranging a groove 12 at the position of the outer side of the end part of the cable 1, which is connected with a shell; after the groove 12 is formed, the end stripping position of the cable 1 is loosened, and then stripping is carried out at the end stripping position of the cable 1 to form the connectable part 11.
In particular, in order to ensure the connection strength and to better improve the tensile strength, it is preferable that the groove 12 is formed as follows: an annular groove 12 is formed. Specifically, wherein seted up the annular groove, can specifically be: the outer side of the sheath of the cable 1 is provided with a spiral annular groove or a plurality of circumferential annular grooves which are axially arranged in parallel. Correspondingly, the cross-section of the annular groove may be V-shaped or U-shaped, wherein the depth is typically between one third and two thirds of the thickness of the sheath of the cable 1.
Specifically, the connection method between the connector head 2 and the cable 1 includes the steps of:
a cable 1 wound as a coil is selected.
And setting parameters of the wire opening machine according to product requirements, connecting a wire end into the wire opening machine, drawing the cable 1 to a required length, cutting the cable 1 by a blade, and finishing the wire opening procedure.
The middle part and one side head part of the cable 1 are clamped by using a clamp on a V-CUT (slotting) machine, V-CUT blades on two sides are close to the cable 1 and CUT into the outer sheath to a set depth, the blades are driven by a motor to complete spiral circular cutting, one or more spirally extending grooves 12 are formed on the outer sheath of the wire, the grooves can be V-shaped grooves or U-shaped grooves, the length is set, if the shape of the cable 1 is not circular, such as a flat wire, corresponding clamping jigs and cutting tools can be installed, and the slotting process is completed.
The feeder sends the processed wire out of the V-CUT machine, so that the V-CUT machine circularly reciprocates the processes, and the automatic wire opening and V-CUT process is realized.
And entering a wire stripping process, stripping the outer sheath and the insulating layer with the required length at the head of the cable 1 by using a wire stripping machine, wherein the stripped part is the part of the clamp of the previous V-CUT machine for clamping the wire to expose the metal conductor, and the outer sheath part with the groove 12 is positioned at the foremost end.
The cable 1 is connected with the positioning piece after subsequent processes of crimping/welding and the like, and is sent to the last step of injection molding process, namely, in the injection molding machine, molten plastic materials are wrapped and filled outside the outer sheath with the groove 12 and the positioning piece under the action of high pressure, so that the positioning piece and the wire are firmly connected, and the protection is provided for welding and crimping areas.
In the performance test and daily use process, the contact area of the injection molding shell 3 and the outer sheath is increased, and the V-shaped groove structure which is meshed with each other ensures the anti-pulling performance and the waterproof performance of the connector product.
Based on the connection method between the connector head 2 and the cable 1 provided in the above embodiment, the invention further provides a cable connection structure, the cable connection structure includes the cable 1 and the connector head 2 connected with the conductor in the cable 1, a groove 12 is provided on the outer side of the end of the cable 1, an injection molded housing 3 is continuously injection molded on the outer sides of the connector head 2 and the end of the cable 1, and a transverse protrusion located in the groove 12 is formed on the inner side of the injection molded housing 3. As the cable connection structure can be formed by the above connection method, that is, the pulling force in the cable extending direction is transmitted through the groove and the transverse protrusion, please refer to the above embodiment for the beneficial effect of the cable connection structure. The groove may be formed by cutting with a cutter, or may be formed by other methods such as hot-press deformation.
Correspondingly, the groove 12 may be an annular groove. The groove 12 is a spiral annular groove or a plurality of circumferential annular grooves arranged in parallel in the axial direction and formed on the outer side of the sheath of the cable 1. The cross section of the annular groove is V-shaped or U-shaped. In which an injection-molded housing 3 is continuously injection-molded outside the connector head 2 and the end of the cable 1, and a tube is generally formed in the injection-molded housing 3 on the side of the connector head 2 away from the cable 1 for better connection.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A method of connecting a connector header to a cable, comprising the steps of:
a groove is formed in the position, connected with the shell, of the outer side of the end of the cable, the end of the cable is stripped to form a connectable part, the head of the connector is connected with the connectable part of the end of the cable, and a groove wall is formed in one side, close to the head of the connector, of the groove;
and continuously injecting the connector head and the outer side of the cable end to form an injection molding shell, and forming a transverse bulge filled in the groove on the inner side of the injection molding shell.
2. The method of claim 1, wherein the groove is formed at a position of the outer connecting shell at the end of the cable, and the cable is stripped at the end to form a connectable portion, and the method comprises:
clamping the wire stripping position of the end part of the cable, and then forming a groove at the position of the outer side of the end part of the cable, which is connected with the shell;
after the grooves are formed, the wire stripping position of the end part of the cable is loosened, and then wire stripping is carried out at the wire stripping position of the end part of the cable to form a connectable part.
3. A method of connecting a connector head to a cable according to claim 2, wherein the recess is formed by:
an annular groove is arranged.
4. A method of connecting a connector head to a cable as claimed in claim 3, wherein the annular groove is defined by:
the outer side of the cable sheath is provided with a spiral annular groove or a plurality of circumferential annular grooves which are axially arranged in parallel.
5. A method of connection between a connector head and a cable according to claim 4, wherein the annular groove is V-shaped or U-shaped in cross-section.
6. The utility model provides a cable connection structure, including the cable and with the connector that the conductor is connected in the cable, its characterized in that, the cable tip outside has and is provided with the recess the connector head and the continuous injection moulding in cable tip outside has the shell of moulding plastics, just the inboard formation of the shell of moulding plastics is located horizontal arch in the recess.
7. The cable connection structure according to claim 6, wherein the groove is an annular groove.
8. The cable connection structure according to claim 7, wherein the groove is a spiral annular groove or a plurality of circumferential annular grooves arranged in parallel in the axial direction, which are formed on the outer side of the cable sheath.
9. The cable connection structure according to claim 8, wherein the annular groove has a V-shaped or U-shaped cross section.
10. The cable connection structure according to claim 9, wherein the injection-molded housing forms a cavity on a side of the connector away from the cable.
CN202110566552.9A 2021-05-24 2021-05-24 Method for connecting head of connector with cable and cable connecting structure Pending CN113285331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110566552.9A CN113285331A (en) 2021-05-24 2021-05-24 Method for connecting head of connector with cable and cable connecting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110566552.9A CN113285331A (en) 2021-05-24 2021-05-24 Method for connecting head of connector with cable and cable connecting structure

Publications (1)

Publication Number Publication Date
CN113285331A true CN113285331A (en) 2021-08-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110566552.9A Pending CN113285331A (en) 2021-05-24 2021-05-24 Method for connecting head of connector with cable and cable connecting structure

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210182722U (en) * 2019-07-30 2020-03-24 上海华伦仪表电子有限公司 Waterproof dustproof prefabricated cable connector of quick coupling
CN210443726U (en) * 2019-10-11 2020-05-01 东莞市三雨电业有限公司 Tensile data line
CN212277481U (en) * 2020-06-09 2021-01-01 浙江思达电缆有限公司 High-bonding-force coaxial cable assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210182722U (en) * 2019-07-30 2020-03-24 上海华伦仪表电子有限公司 Waterproof dustproof prefabricated cable connector of quick coupling
CN210443726U (en) * 2019-10-11 2020-05-01 东莞市三雨电业有限公司 Tensile data line
CN212277481U (en) * 2020-06-09 2021-01-01 浙江思达电缆有限公司 High-bonding-force coaxial cable assembly

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Application publication date: 20210820