CN209822988U - High-reliability electric connector tail accessory - Google Patents
High-reliability electric connector tail accessory Download PDFInfo
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- CN209822988U CN209822988U CN201921113344.8U CN201921113344U CN209822988U CN 209822988 U CN209822988 U CN 209822988U CN 201921113344 U CN201921113344 U CN 201921113344U CN 209822988 U CN209822988 U CN 209822988U
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- wire
- sealing body
- electrical connector
- sleeve
- conical rubber
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Abstract
The application belongs to the technical field of connector design and relates to a tail accessory of a high-reliability electric connector. The tail accessory comprises a wire sealing body pressing ring, a screw cap, a metal gasket, a conical rubber pad, an inner bushing and a plug. In the nut center through hole, the metal gasket is arranged between the wire sealing body pressing ring and the conical rubber gasket and used for limiting the contact of the wire sealing body of the electric connector and the conical rubber gasket, a wire storage space of a wire is formed between the wire sealing body pressing ring and the conical rubber gasket, the wire is sent into the electric connector through a wire hole in the conical rubber gasket and a middle hole of the metal ring, the conical rubber gasket is tightly pressed by the axial force of the inner bushing after the plug is screwed down, and the wire is fixed. This application passes through the interference design to compress tightly fixed wire, satisfied the wire and deposited the line and the needs of damping function.
Description
Technical Field
The application belongs to the technical field of connector design, and particularly relates to a tail accessory of a high-reliability electric connector.
Background
Electrical connectors (including tail fittings) are the basic elements of electrical connections (e.g., cables) that require retention and protection of the wiring harness by the tail fittings. In the design, how to realize the functions of wire storage and vibration damping in a limited space is considered, and the reliability of connection and the convenience in the maintenance process are improved.
The existing tail accessory structure fixes the wire in a glue pouring mode, and the functions of wire storage and vibration reduction are achieved. It needs great physical space to guarantee the function, and this easily appears interfering, is unfavorable for the maintenance in the use.
In the technical aspect, in order to realize the functions of wire storage and vibration reduction, the conventional tail accessory structure must be ensured by a certain space length, otherwise, the requirements of wire storage and glue filling cannot be met technically; in the aspect of cost, the existing tail accessory structure is long in space length and high in economic cost. In the process of maintenance and use (assembly and decomposition), the stripping of the wiring harness and the electric connector can be carried out only by carrying out sol treatment, so that the maintenance cost is high; in terms of efficiency: the existing tail accessory structure is difficult to operate in an interior field, long in period, not convenient enough, not suitable for narrow areas (such as aviation equipment) and low in efficiency due to the fact that sol and curing after glue pouring are carried out in the maintenance and use (assembly and decomposition) process.
SUMMERY OF THE UTILITY MODEL
To solve the above problems, the present application provides a highly reliable electrical connector tail accessory, comprising:
the nut comprises a through hole which axially penetrates through the nut, the through hole part at the front end is provided with a first inner diameter, the through hole part at the rear end is provided with a second inner diameter, the second inner diameter is larger than the first inner diameter, so that a step surface is formed, and the through hole part at the front end is used for being matched and connected with an electric connector and accommodating a wire sealing body of the electric connector;
the metal gasket is pressed from the rear end of the screw cap to be attached to the step surface;
the conical rubber pad is provided with a central through hole for inserting a lead, the conical rubber pad comprises a main body, the main body is pressed into the metal washer from the rear end of the screw cap to be attached to the metal washer, and a conical body is further arranged on one side of the conical rubber pad, which is far away from the metal washer;
the inner bushing is sleeved on the conical body of the conical rubber pad and can radially extrude the conical body so that the conical rubber pad can fix the lead;
and the plug is arranged in the through hole part of the screw cap at the rear end and is used for extruding the metal gasket, the conical rubber pad and the inner bushing into the screw cap.
Preferably, the wire sealing device further comprises a wire sealing body pressing ring which is sleeved outside the wire sealing body of the electric connector, the end of the wire sealing body pressing ring abuts against the metal gasket, the axial length of the wire sealing body pressing ring is greater than that of the wire sealing body of the electric connector, and when the wire sealing body pressing ring is sleeved on the wire sealing body of the electric connector, a wire storage space is formed between the end of the wire sealing body of the electric connector and the metal gasket.
Preferably, the inner bushing comprises a first sleeve and a first annular crimping piece located at the end of the first sleeve, the first sleeve is sleeved outside a conical body of the conical rubber pad, and the first annular crimping piece is used for being attached to a main body of the conical rubber pad.
Preferably, still include the outer bush, the outer bush includes the second sleeve and is located the second annular crimping piece of second sleeve tip, the second sleeve cup joints outside the first sleeve of interior bush, the second annular crimping piece is used for laminating the first annular crimping piece of interior bush.
Preferably, a metal shielding hose is disposed between the first sleeve of the inner bushing and the second sleeve of the outer bushing.
Preferably, the through hole portion of the nut at the rear end has an internal thread, and the plug is fixed inside the nut by an adapted external thread.
The key points and the protection points of the application are as follows:
1. the tail accessory structure formed by the screw cap, the metal washer and the conical rubber pad realizes the fixation of the lead, and achieves the purposes of wire storage and vibration reduction;
2. the interference design is adopted, a fixed point (vibration reduction point) of the wire is formed through the conical rubber pad and the metal washer, and the requirements of installation, use and maintenance are met in a narrow space.
The application has the advantages and beneficial effects as follows:
1. the high-reliability tail accessory structure fixes the lead by pressing the generated force through the interference design of the structure, and simultaneously meets the requirements of lead storage and vibration reduction functions.
2. The space required by the tail accessory, the wire storage structure and the vibration reduction structure with the new structure is shortened by 71 percent, the length is reduced, and the interference problem caused by the limitation of the space is avoided. Meanwhile, the economic cost is reduced. The new structure does not need sol and solidification, the maintenance cost is reduced, and the maintenance efficiency is improved.
Drawings
Fig. 1 is an exploded view of the attachment structure of the tail of the high-reliability electrical connector of the present application.
Fig. 2 is a sectional view of the tail attachment structure in the embodiment of fig. 1 of the present application.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application, and should not be construed as limiting the present application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application. Embodiments of the present application will be described in detail below with reference to the drawings.
The problem of the highly reliable afterbody annex structure in this application is solved in limited space, makes the tail attach the annex and satisfy following requirement:
the technical aspect is as follows: the tail accessory structure is shortened, so that the requirement of the aircraft engine on space limitation is met while the tail accessory structure has the functions of wire storage and vibration reduction, and the interference with other parts is avoided.
In the aspect of cost: after the tail accessory is shortened, the space length is reduced, and the cost is reduced. The novel wire storage and vibration reduction structure does not need sol and solidification, and the maintenance cost is reduced.
In the aspect of efficiency: the novel wire storage and vibration reduction structure can be directly replaced in an external field, is short in period, convenient to maintain and capable of being installed in a narrow space, and improves efficiency.
The present application provides a tail accessory of a highly reliable electrical connector, as shown in fig. 1 and 2, which mainly includes:
the nut 3 comprises a through hole which axially penetrates through, the through hole part at the front end is provided with a first inner diameter, the through hole part at the rear end is provided with a second inner diameter, the second inner diameter is larger than the first inner diameter, so that a step surface is formed, and the through hole part at the front end is used for being matched and connected with the electric connector 1 and accommodating a wire sealing body of the electric connector 1;
the metal gasket 4 is pressed from the rear end of the screw cap to be attached to the step surface;
the conical rubber pad 5 is provided with a central through hole for inserting a lead 9, the conical rubber pad comprises a main body, the main body is pressed into the metal washer from the rear end of the screw cap to be attached to the metal washer, and a conical body is further arranged on one side, away from the metal washer, of the conical rubber pad 5;
the inner bushing 6 is sleeved on the conical body of the conical rubber pad 5 and can radially extrude the conical body so that the conical rubber pad fixes the lead 9;
and the plug 8 is arranged in the through hole part of the nut 3 at the rear end and is used for extruding the metal gasket 4, the conical rubber pad 5 and the inner lining 6 into the nut 3.
In some optional embodiments, the wire sealing body pressing ring further comprises a wire sealing body pressing ring 2 sleeved outside the wire sealing body of the electrical connector 1, and an end of the wire sealing body pressing ring abuts against the metal gasket 4, an axial length of the wire sealing body pressing ring 2 is greater than an axial length of the wire sealing body of the electrical connector 1, and when the wire sealing body pressing ring 2 is sleeved on the wire sealing body of the electrical connector 1, a wire storage space is formed between the end of the wire sealing body of the electrical connector 1 and the metal gasket 4.
In some alternative embodiments, the inner bushing 6 comprises a first sleeve sleeved outside the cone of the tapered rubber pad 5 and a first annular crimping piece at the end of the first sleeve for fitting against the body of the tapered rubber pad 5.
In some optional embodiments, further comprising an outer bushing 7, wherein the outer bushing 7 comprises a second sleeve and a second annular crimping piece at an end of the second sleeve, the second sleeve is sleeved outside the first sleeve of the inner bushing 6, and the second annular crimping piece is used for fitting the first annular crimping piece of the inner bushing 6.
In some alternative embodiments, a metal shielding hose is arranged between the first sleeve of the inner bushing 6 and the second sleeve of the outer bushing 7, so as to protect the wires/wire harnesses.
In some alternative embodiments, the through hole portion of the nut 3 at the rear end has an internal thread, and the plug 8 is fixed inside the nut 3 by means of a matching external thread.
In the groove of this application elongated nut 3, between wire body clamping ring 2, conical rubber pad 5 were arranged in to metal packing ring 4 for the wire body and the conical rubber pad 5 contact of restriction electric connector 1 form the line space of depositing of wire 9 between the two simultaneously. The wire 9 is sent into the electric connector 1 through the wire hole in the tapered rubber pad 5 and the middle hole of the metal ring 4, the tapered rubber pad 5 is pressed by the axial force of the inner bushing 6 and the outer bushing 7 after the plug 8 is screwed down, the wire 9 is evenly stressed in the circumferential direction and fixed, and a highly reliable tail accessory structure is formed.
The vibration reduction and wire storage functions are realized by fixing the wire by the force generated by pressing through the interference design of the conical rubber pad, and buffering the vibration to achieve the purpose of vibration reduction. After the wire is fed into the electric connector, the wire is equivalently fixed at two ends. In the assembled structure, the wire is stored between the conical rubber pad and the wire sealing body of the electric connector. The length of the nut is shortened, the requirement of the aircraft engine on space limitation is met, and interference with other parts is avoided.
The tail accessory is low in cost, convenient to maintain and high in efficiency, and the main space of the tail accessory occupies a part, namely a nut is shortened, so that the manufacturing cost of the tail accessory is reduced. The metal washer and the conical rubber pad do not need to be subjected to sol and solidification, and the maintenance cost is reduced. Compared with the repair by returning to the factory, the replacement can be directly carried out in the external field, the period is short, and the maintenance is convenient. Meanwhile, the maintenance can be carried out in a narrow space, and the maintenance efficiency is improved.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
1. A highly reliable electrical connector tail attachment comprising:
the nut (3) comprises a through hole which axially penetrates through, the through hole part at the front end is provided with a first inner diameter, the through hole part at the rear end is provided with a second inner diameter, the second inner diameter is larger than the first inner diameter, so that a step surface is formed, and the through hole part at the front end is used for being matched and connected with the electric connector (1) and accommodating a wire sealing body of the electric connector (1);
the metal gasket (4) is pressed from the rear end of the screw cap to be attached to the step surface;
the conical rubber pad (5) is provided with a central through hole for inserting a wire (9), the conical rubber pad comprises a main body, the main body is pressed into the metal washer from the rear end of the screw cap until the main body is attached to the metal washer, and a conical body is further arranged on one side, away from the metal washer, of the conical rubber pad (5);
the inner bushing (6) is sleeved on the conical body of the conical rubber gasket (5) and can radially extrude the conical body so that the conical rubber gasket fixes the lead (9);
and the plug (8) is arranged in the through hole part of the nut (3) positioned at the rear end and is used for extruding the metal gasket (4), the conical rubber gasket (5) and the inner bushing (6) into the nut (3).
2. The high-reliability electrical connector tail accessory according to claim 1, further comprising a wire-sealing body pressing ring (2) sleeved outside the wire-sealing body of the electrical connector (1) and having an end abutting against the metal gasket (4), wherein an axial length of the wire-sealing body pressing ring (2) is greater than an axial length of the wire-sealing body of the electrical connector (1), and when the wire-sealing body pressing ring (2) is sleeved on the wire-sealing body of the electrical connector (1), a wire storage space is formed between the end of the wire-sealing body of the electrical connector (1) and the metal gasket (4).
3. The high reliability electrical connector tail accessory of claim 1, wherein the inner bushing (6) comprises a first sleeve sleeved outside the tapered rubber pad (5) and a first annular crimping piece at the end of the first sleeve for fitting the tapered rubber pad (5) main body.
4. The high reliability electrical connector tail attachment of claim 3, further comprising an outer bushing (7), wherein the outer bushing (7) comprises a second sleeve and a second annular crimping piece at an end of the second sleeve, the second sleeve is sleeved outside the first sleeve of the inner bushing (6), and the second annular crimping piece is used for fitting the first annular crimping piece of the inner bushing (6).
5. The high reliability electrical connector tail attachment of claim 4, wherein a metal shielding hose is provided between the first sleeve of the inner bushing (6) and the second sleeve of the outer bushing (7).
6. The high reliability electrical connector tail attachment of claim 1, wherein the through hole portion of the nut (3) at the rear end has an internal thread, and the plug (8) is fixed inside the nut (3) by a matching external thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921113344.8U CN209822988U (en) | 2019-07-16 | 2019-07-16 | High-reliability electric connector tail accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921113344.8U CN209822988U (en) | 2019-07-16 | 2019-07-16 | High-reliability electric connector tail accessory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209822988U true CN209822988U (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921113344.8U Active CN209822988U (en) | 2019-07-16 | 2019-07-16 | High-reliability electric connector tail accessory |
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| Country | Link |
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| CN (1) | CN209822988U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113571958A (en) * | 2021-09-23 | 2021-10-29 | 四川华丰科技股份有限公司 | Connector tail accessory |
-
2019
- 2019-07-16 CN CN201921113344.8U patent/CN209822988U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113571958A (en) * | 2021-09-23 | 2021-10-29 | 四川华丰科技股份有限公司 | Connector tail accessory |
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