Lightweight anti-loose electric connector

Abstract

The invention provides a lightweight anti-loose electric connector, and belongs to the technical field of connectors, the lightweight anti-loose electric connector specifically comprises a shell, an insulator assembly, a contact element, a coupling nut and a spring claw, the insulator assembly is arranged in the shell, the contact element is fixed in the insulator assembly, the contact element is fixed in the shell through the insulator assembly, and the coupling nut is fixed in the shell through the spring claw. The connecting nut is arranged on the outer side of the shell in a sleeving mode, ratchets are arranged on the outer circumference of the shell, the spring claw is located between the connecting nut and the ratchets of the shell, the spring claw is fixedly connected with the inner wall of the connecting nut, and an anti-loosening structure is formed through matching of the spring claw and the ratchets. According to the processing scheme, the problem that a traditional electric connector is prone to loosening is solved, and the anti-loosening electric connector has the advantages of being small in size, light in weight and high in anti-loosening reliability.

Description

Technical Field

[0001] This application relates to the field of connector technology, and in particular to a lightweight anti-loosening electrical connector. Background Technology

[0002] Electrical connectors are widely used in various aircraft, including those used in aviation and aerospace. To meet the requirements of weight reduction and high-reliability connections in aircraft, small, lightweight electrical connectors with high anti-loosening reliability are highly sought after. Conventional anti-loosening electrical connectors have many large anti-loosening structural parts, making miniaturization difficult and unable to meet increasingly stringent weight reduction requirements. Furthermore, shielding electrical connectors after wiring requires the installation of tail accessories, further increasing the product's weight. Summary of the Invention

[0003] In view of this, embodiments of this application provide a lightweight anti-loosening electrical connector, which at least partially solves the problem of difficulty in designing small and lightweight anti-loosening electrical connectors in the prior art. This electrical connector features small size, light weight, and high reliability in preventing loosening, meeting the needs of use in confined spaces and for weight reduction.

[0004] This application provides a lightweight anti-loosening electrical connector, including a housing, an insulator assembly, a contact, a connecting nut, and a spring claw. The insulator assembly is disposed inside the housing, and the contact is fixed inside the insulator assembly. The insulator assembly fixes the contact inside the housing. The connecting nut is sleeved on the outside of the housing. The outer circumference of the housing is provided with ratchet teeth. The spring claw is located between the connecting nut and the ratchet teeth of the housing. The spring claw is fixedly connected to the inner wall of the connecting nut. The anti-loosening structure is formed by the cooperation of the spring claw and the ratchet teeth.

[0005] According to a specific implementation of the present application, the spring claw is configured as a trapezoidal strip structure without a bottom edge and not closed. The middle area of ​​the straight sides of the spring claw is provided with inwardly protruding bulges, and the bulges of the straight sides of the two sides simultaneously engage with the ratchet teeth of the housing.

[0006] According to one specific implementation of this application, the top edge of the spring claw is set to be arc-shaped, and the arc-shaped top edge fits against the inner wall of the connecting nut.

[0007] According to a specific implementation of this application, the cross-section of the convex hull parallel to the straight edge direction is triangular, the cross-section of the convex hull perpendicular to the straight edge direction is trapezoidal, and the bottom of the convex hull is connected to the plane of the straight edge.

[0008] According to one specific implementation of the embodiments of this application, the vertex corner of the triangular structure is provided with a transition rounded corner.

[0009] According to a specific implementation of this application, the outer surface of the tail of the housing is provided with multiple groove structures in the axial direction of the housing and in the direction parallel to the axial direction of the housing.

[0010] According to a specific implementation of an embodiment of this application, a retaining ring is provided on the outside of the housing. The retaining ring is located at the tail end of the connecting nut and restricts the axial movement of the connecting nut by means of the retaining ring.

[0011] According to one specific implementation of this application, multiple spring claws are symmetrically installed along the circumference center of the inner side of the connecting nut.

[0012] According to one specific implementation of an embodiment of this application, the spring claw is formed by stamping an elastic stainless steel strip.

[0013] Beneficial effects: The lightweight anti-loosening electrical connector in this embodiment is a plug end, capable of connecting to a corresponding socket. The spring claw installed on the connecting nut is elastic, and its engagement with the ratchet structure on the circumference of the housing forms an anti-loosening structure. When the connecting nut rotates relative to the housing, the anti-loosening structure increases the resistance during rotation, achieving good anti-loosening effect and small size. Furthermore, the tail end of the housing integrates a structure that can be treated with a shielding braided layer, eliminating the need for additional tail accessories. This electrical connector features small size, light weight, and high reliability in preventing loosening. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural diagram of a lightweight anti-loosening electrical connector according to an embodiment of the present invention; Figure 2 This is a schematic diagram of a spring claw structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of a convex hull structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of a shell structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of an anti-loosening mechanism according to an embodiment of the present invention.

[0016] In the diagram: 1. Insulator assembly, 2. Housing, 3. Snap ring, 4. Rivet, 5. Spring claw, 6. Connecting nut, 7. Contact element, 8. Protrusion, 9. Ratchet, 10. Rivet joint. Detailed Implementation

[0017] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0018] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0020] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0021] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0022] This application provides a lightweight anti-loosening electrical connector, as described below. Figure 1 straight Figure 5 Provide a detailed description.

[0023] In one embodiment, refer to Figure 1 , Figure 2 and Figure 5The lightweight anti-loosening electrical connector includes a housing 2, an insulator assembly 1, a contact 7, a connecting nut 6, and a spring claw 5. The insulator assembly 1 is disposed inside the housing 2, and the contact 7 is fixed inside the insulator assembly 1. The contact 7 is fixed inside the housing 2 by the insulator assembly 1. The connecting nut 6 is sleeved on the outside of the housing 2. The outer circumference of the housing 2 is provided with ratchet teeth 9. The spring claw 5 is located between the connecting nut 6 and the ratchet teeth 9 of the housing 2. The spring claw 5 is fixedly connected to the inner wall of the connecting nut 6. The anti-loosening structure is formed by the cooperation of the spring claw 5 and the ratchet teeth 9.

[0024] This lightweight anti-loosening electrical connector has a plug end and can be connected to a corresponding socket. The spring claw 5 installed on the connecting nut 6 is elastic. The spring claw 5 cooperates with the ratchet tooth 9 structure on the circumference of the housing 2 to form an anti-loosening structure. When the connecting nut 6 rotates relative to the housing 2, the anti-loosening structure can increase the resistance during the rotation process to achieve anti-loosening. It has a good anti-loosening effect and small size.

[0025] Furthermore, the spring claw 5 is configured as a trapezoidal strip structure without a bottom edge and not closed. The middle area of ​​the straight sides of the spring claw 5 is provided with protrusions 8 that bulge inward. The protrusions 8 on both straight sides simultaneously engage with the ratchet 9 of the housing 2.

[0026] Specifically, the spring claw 5 and the connecting nut 6 are provided with through holes. The rivet 4 passes through the through holes of both, fixing the spring claw 5 to the connecting nut 6 by riveting. The convex 8 structure cooperates with the ratchet 9 structure on the circumference of the housing 2. When the connecting nut 6 rotates relative to the housing 2, the "convex 8-ratchet 9" structure can increase the resistance during rotation to prevent loosening. This electrical connector effectively reduces the number of parts through optimized structural design. The housing 2 is made of lightweight, high-strength materials, further reducing the overall weight. At the same time, its anti-loosening structure is cleverly designed, avoiding excessive space occupation by traditional anti-loosening structures while ensuring the reliability of anti-loosening, allowing the electrical connector to adapt to narrow installation spaces.

[0027] Furthermore, the top edge of the spring claw 5 is designed to be arc-shaped, and the arc-shaped top edge fits snugly against the inner wall of the connecting nut 6. This design makes the contact between the spring claw 5 and the inner wall of the connecting nut 6 tighter and more stable, effectively dispersing the contact stress between the two and avoiding structural damage caused by local stress concentration. At the same time, it provides a good positioning basis for the fixation of the spring claw 5 within the connecting nut 6, ensuring that the spring claw 5 will not shift or wobble during operation, thereby ensuring the stability and reliability of the anti-loosening structure.

[0028] Furthermore, refer to Figure 3The cross-section of the convex hull 8 parallel to the straight edge is triangular, and the cross-section of the convex hull 8 perpendicular to the straight edge is trapezoidal. The bottom of the convex hull 8 is connected to the plane of the straight edge, ensuring the strength of the connection between the convex hull 8 and the strip structure. As shown in the figure, the top of the convex hull 8 forms a certain angle α. This cross-sectional design allows the convex hull 8 to provide strong biting force through the pointed part of the triangular structure when meshing with the ratchet 9, ensuring an anti-loosening effect. At the same time, the smooth side of the trapezoidal structure allows for a smooth transition during relative rotation, reducing impact and wear during meshing.

[0029] Preferably, the apex of the triangular structure is provided with a transition fillet. The transition fillet can effectively avoid stress concentration. When the protrusion 8 engages or disengages with the ratchet 9, the fillet structure can make the contact process smoother, reduce wear on the ratchet 9 and the protrusion 8 itself, extend the service life of the anti-loosening structure, and at the same time reduce the risk of the protrusion 8 breaking under impact or vibration, further improving the stability and durability of the anti-loosening structure.

[0030] In one embodiment, the outer surface of the tail end of the housing 2 has multiple groove structures in the axial direction along the housing 2 and in the direction parallel to the axial direction of the housing 2, which can be used for mounting and fixing with the metal shielding layer of the wire harness. This design eliminates the need for additional tail accessories, and the fixing of the shielding braided layer can be completed through the groove structure of the housing 2 itself, simplifying the assembly process, further reducing the product weight, and meeting the stringent requirements of lightweight and miniaturized electrical connectors in the aerospace and other fields.

[0031] Furthermore, a retaining ring 3 is provided on the outside of the housing 2. The retaining ring 3 is located at the tail end of the connecting nut 6 and restricts the axial movement of the connecting nut 6 by means of the retaining ring 3.

[0032] Furthermore, multiple spring claws 5 are symmetrically installed along the circumference center of the inner side of the connecting nut 6. This symmetrical distribution ensures that the force exerted by the spring claws 5 on the housing 2 is more uniform, preventing eccentricity or tilting between the connecting nut 6 and the housing 2 due to uneven force distribution, thus guaranteeing the consistency of the anti-loosening effect of the anti-loosening structure in all directions. Simultaneously, the multiple spring claws 5 also improve the overall load-bearing capacity and reliability of the anti-loosening structure. Even if one spring claw 5 suffers minor damage or failure, the others can still continue to perform their anti-loosening function, effectively reducing the impact of a single point of failure on the entire anti-loosening system and ensuring that the electrical connector maintains stable anti-loosening performance during long-term use.

[0033] Furthermore, the spring claw 5 is formed by stamping from elastic stainless steel strip. The elastic stainless steel strip possesses excellent elasticity and strength, ensuring that the spring claw 5 maintains stable elastic performance during long-term use, thereby guaranteeing the reliability of the anti-loosening structure. The stamping process not only enables mass production of the spring claw 5, improving production efficiency, but also ensures the consistency and precision of product dimensions, making the performance parameters of each spring claw 5 essentially the same, which is beneficial to the overall stability of the anti-loosening structure. In addition, stainless steel material also has excellent corrosion resistance and wear resistance, enabling it to adapt to various complex working environments and extending the service life of the electrical connector.

[0034] Reference Figure 5 The anti-loosening principle of the lightweight anti-loosening electrical connector of this application is as follows: After the spring claw 5 is installed and fixed on the connecting nut 6, it forms a simple beam structure with one end fixed and the other end movable. It is a metal elastic part. When the connecting nut 6 rotates, the deformation force and friction generated by the spring claw 5 protrusion 8 passing over the ratchet 9 form a resistance torque, thereby realizing the anti-loosening function.

[0035] The lightweight anti-loosening electrical connector provided by this invention has a simple anti-loosening structure and fewer parts. The anti-loosening mechanism can be designed in a small size, thereby achieving a lightweight design of the electrical connector. In addition, the multiple groove structures designed on the outer surface of the tail of the housing 2 can be used for installation and fixation with the metal shielding layer of the wire harness, reducing the use of tail accessories and further achieving the weight reduction effect.

[0036] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A lightweight anti-loosening electrical connector, characterized by, The utility model relates to a kind of anti-loosening structure of contactor, including shell (2), insulator assembly (1), contact (7), connecting nut (6) and spring claw (5), insulator assembly (1) is set in shell (2) inside, contact (7) is fixed in insulator assembly (1), contact (7) is fixed by insulator assembly (1) in shell (2) inside, connecting nut (6) is sleeved on the outside of shell (2), the outer circumference of shell (2) is equipped with ratchet (9), spring claw (5) is located between connecting nut (6) and the ratchet (9) of shell (2), spring claw (5) is fixedly connected with the inner wall of connecting nut (6), and anti-loosening structure is formed by the cooperation of spring claw (5) and ratchet (9).

2. The lightweight anti-loosening electrical connector of claim 1, wherein Spring claw (5) is set to trapezoidal strip structure without bottom edge not closed, and the middle region of two sides straight edge of spring claw (5) is equipped with the bulge (8) that projects to inboard side, and the bulge (8) of two sides straight edge is engaged with the ratchet (9) of shell (2) simultaneously.

3. The lightweight anti-loosening electrical connector of claim 2, wherein, The top edge of spring claw (5) is set to circular arc, and the top edge of circular arc is attached to the inner wall of connecting nut (6).

4. The lightweight anti-loosening electrical connector of claim 2, wherein, The cross section of bulge (8) parallel to straight edge direction is triangle structure, and the cross section of bulge (8) perpendicular to straight edge direction is trapezoidal structure, and the bottom of bulge (8) is connected with the plane of straight edge.

5. The lightweight anti-loosening electrical connector of claim 4, wherein, The top angle of triangle structure is equipped with transition round angle.

6. The lightweight anti-loose electrical connector of claim 1, wherein, The outer surface of shell (2) tail portion is equipped with multiple recess structures in the axial direction of shell (2) and parallel to the axial direction of shell (2).

7. The lightweight anti-loose electrical connector of claim 1, wherein The outside of shell (2) is equipped with snap spring (3), and snap spring (3) is located in the tail end of connecting nut (6), and the axial movement of connecting nut (6) is limited by snap spring (3).

8. The lightweight anti-loose electrical connector according to any one of claims 1-7, wherein, Spring claw (5) is centrally symmetrically installed multiple along the circumferential center of the inside of connecting nut (6).

9. The lightweight anti-loose electrical connector according to any one of claims 1-7, wherein, Spring claw (5) is formed by stamping with elastic stainless steel strip.

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