Connector

Abstract

The utility model discloses a connector, which has a first direction and a second direction which intersect with each other, and comprises a shell which is provided with a matching cavity penetrating along the first direction; the terminal assembly comprises a cable and a shielding shell, the shielding shell is fixedly arranged outside the cable in a covering mode, and the shielding shell is provided with a limiting part; the first locking piece is elastically arranged on the inner wall of the matching cavity, and the first locking piece is in buckling fit with the limiting part to limit displacement of the terminal assembly in the first direction; the second locking piece is arranged on the shell, a limiting groove hole is formed in the second locking piece, and the limiting groove hole is attached to the outer wall of the cable in a surrounding mode. In the scheme, the first locking piece limits movement of the terminal assembly in the first direction, the second locking piece forms the limiting groove hole to make contact with the cable part in an attached mode and limits jumping of the cable part in the second direction, and the first locking piece and the second locking piece focus on limiting and fixing of the terminal assembly in the axial direction and the radial direction respectively. The connection reliability and stability of the terminal assembly and the housing are ensured, and the use performance of the connector is ensured.

Description

Technical Field

[0001] This application relates to the technical field of connectors, and more particularly to a connector. Background Technology

[0002] Connectors, as crucial connecting components between the control and execution ends, play a vital role in transmitting current and signals. Therefore, the stability and reliability of connectors are extremely important.

[0003] Connectors generally consist of a housing and terminals, with the terminals fixed inside the housing. During assembly and use, the male and female connector terminals conduct electricity to transmit current and signals. Currently, terminals are typically secured within the housing using clips; however, this method primarily focuses on preventing axial displacement of the terminals, offering insufficient stability for the cable portion within the terminals. This allows the cable to easily move radially, affecting the connector's reliability and connection performance. Utility Model Content

[0004] This application provides a connector that can reliably and stably fix terminal assemblies, ensuring the connector's connection performance.

[0005] A connector having intersecting first and second directions, comprising:

[0006] The outer casing has a mating cavity extending along a first direction;

[0007] Terminal assembly, including cable and shielding housing, the shielding housing is fixedly installed on the outside of the cable, and the shielding housing is provided with a limiting part;

[0008] The first locking member is elastically disposed on the inner wall of the mating cavity, and the first locking member is engaged with the limiting part to limit the displacement of the terminal assembly along the first direction;

[0009] The second locking element is disposed on the housing and has a limiting slot that surrounds the outer wall of the cable.

[0010] One of the above technical solutions has the following advantages or beneficial effects: During the connector manufacturing process, after the terminal assembly is inserted into the mating cavity, the first locking member engages with the limiting part on the shielding shell to restrict the movement of the terminal assembly along the first direction. The second locking member forms a limiting slot and contacts the cable part to limit the movement of the cable part along the second direction. The first locking member and the second locking member focus on limiting and fixing the terminal assembly axially and radially, respectively, thereby ensuring the reliability and stability of the connection between the terminal assembly and the shell, and ensuring the performance of the connector. Attached Figure Description

[0011] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0012] Figure 1 This is an overall structural diagram of the connector provided in the embodiments of this application;

[0013] Figure 2 This is an exploded structural diagram of the connector provided in an embodiment of this application;

[0014] Figure 3 This is a structural diagram provided in an embodiment of this application to illustrate the outer casing;

[0015] Figure 4 This is a structural diagram of a terminal assembly provided in an embodiment of this application;

[0016] Figure 5 This is a cross-sectional view provided in an embodiment of this application, illustrating the snap-fit ​​engagement between the first locking member and the terminal assembly;

[0017] Figure 6 This is a structural diagram provided in an embodiment of this application to illustrate the second locking member;

[0018] Figure 7 This is another perspective provided by the embodiments of this application to show the structure of the second locking member;

[0019] Figure 8 This is a structural diagram provided in an embodiment of this application to illustrate the third locking member;

[0020] Figure 9 This is a cross-sectional view provided in an embodiment of this application to illustrate the snap-fit ​​engagement between the third locking member and the terminal assembly.

[0021] Reference numerals: 1. Outer shell; 10. Mating cavity; 11. Anti-fooling groove; 12. Opening; 13. Positioning groove; 14. Clearance groove; 15. Through groove; 16. Fixing protrusion; 17. Protruding ridge; 18. First protrusion;

[0022] 2. Terminal assembly; 21. Cable; 22. Shielding shell; 221. Front section; 222. Middle section; 223. Rear section; 20. Limiting part;

[0023] 3. First locking element;

[0024] 4. Second locking element; 40. Limiting slot; 41. Main body; 42. Fixing part; 420. Fixing slot; 43. Extension part; 44. Anti-foolproof rib;

[0025] 5. Third locking element; 51. Body part; 510. Holding groove; 52. Snap-fit ​​part; 521. Second protrusion; 53. Fitting part; 54. Positioning rib;

[0026] X, first direction; Z, second direction; Y, third direction. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Furthermore, the character " / " in this document, unless otherwise specified, generally indicates that the preceding and following related objects have an "or" relationship.

[0029] The following is in conjunction with the appendix Figure 1-9 This application will be further described below.

[0030] Reference Figure 1 and Figure 2 The connector provided in this application has intersecting first direction X, second direction Z, and third direction Y. In one example, the first direction X, second direction Z, and third direction Y form a spatial rectangular coordinate system.

[0031] The connector includes a housing 1, a terminal assembly 2, a first locking member 3, a second locking member 4, and a third locking member 5. The terminal assembly 2 is inserted into the housing 1 along a first direction X. The terminal assembly 2 has an axial direction parallel to the first direction X and a radial direction perpendicular to the first direction X. The first locking member 3 and the second locking member 4 are used to fix the terminal assembly 2 within the housing 1, providing axial limiting constraint on the terminal assembly 2. Specifically, the terminal assembly 2 includes a cable 21 and a shielding shell 22 fixedly covering the cable 21. The shielding shell 22 has a limiting portion 20. The first locking member 3 engages with the limiting portion 20 to restrict the movement of the terminal assembly 2 along the first direction X. The second locking member 4 provides limiting by forming a limiting slot 40 and partially contacting the cable 21. The third locking member 5 supports and limits the terminal assembly 2, providing radial limiting constraint on the terminal assembly 2.

[0032] To achieve the above technical solution, during the connector manufacturing process, when the terminal assembly 2 is inserted into the mating cavity 10, the first locking member 3 engages with the limiting part 20 on the shielding shell 22 to restrict the movement of the terminal assembly 2 along the first direction X. The second locking member 4 forms a limiting slot 40 and partially contacts the cable 21 to limit the movement of the cable 21 along the second direction Z. The first locking member 3 and the second locking member 4 respectively focus on limiting and fixing the terminal assembly 2 in the axial and radial directions, thereby ensuring the reliability and stability of the connection between the terminal assembly 2 and the shell 1, and ensuring the performance of the connector.

[0033] Reference Figure 2 and Figure 3 For the outer casing 1, the outer casing 1 is generally square and has mating cavities 10 extending along a first direction X. In one example, the mating cavities 10 are arranged in two rows along a second direction Z, and each row has three mating cavities 10 arranged along a third direction Y. The three mating cavities 10 in the same row are spaced apart, while the two mating cavities 10 along the second direction Z are interconnected.

[0034] Reference Figure 2 and Figure 4 For terminal assembly 2, terminal assembly 2 includes cable 21 and shielding shell 22. Shielding shell 22 is fixedly covered outside cable 21 and covers the outside of the end of cable 21 that is inserted into mating cavity 10. Limiting part 20 is provided on shielding shell 22. Specifically, shielding shell 22 includes a front section 221, a middle section 222 and a rear section 223 arranged sequentially along the first direction X. The outer diameter of the middle section 222 is smaller than the outer diameter of the front section 221 and the outer diameter of the rear section 223. This causes the outer wall of the middle section 222 to form a recessed area compared to the front section 221 and the rear section 223. It can be understood that the recessed area between the outer wall of the middle section 222 and the front section 221 or the rear section 223 forms the limiting part 20 in this solution.

[0035] Reference Figure 1 and Figure 5 Regarding the first locking member 3, the first locking member 3 is elastically disposed on the inner wall of the mating cavity 10. The first locking member 3 engages with the limiting part 20 to limit the displacement of the terminal assembly 2 along the first direction X. Specifically, the outer shell 1 has through slots 15 at both ends in the third direction Y. The first locking member 3 is configured as an elastic body elastically connected in the through slots 15. The first locking member 3 can deform from the connection position, thereby deforming around the connection position in the third direction Y.

[0036] The working principle of the first locking element 3 can be referred to... Figure 5The operator or machine holds the terminal assembly 2 and inserts it into the mating cavity 10 along the first direction X. The shielding shell 22 enters the mating cavity 10 along the first direction X. Then, as the terminal assembly 2 is inserted, the shielding shell 22 contacts the first locking member 3 and presses the first locking member 3 in a direction away from the center of the terminal assembly 2, causing the first locking member 3 to deform outward along the third direction Y until the shielding shell 22 completely passes over the first locking member 3. Then, the first locking member 3 restores its deformation and resets, and engages with the limiting part 20. When the terminal assembly 2 slides along the first direction X, the first locking member 3 and the shielding shell 22 abut against each other, thereby restricting the displacement of the terminal assembly 2.

[0037] The same principle applies to the formation of the first locking member 3 inside the outer casing 1. It can be understood that partitions are spaced along a third direction Y inside the outer casing 1, with the aforementioned through slots 15 and correspondingly, the first locking members 3. In some examples, not only the first locking member 3 but also a third locking member 5 engages with the limiting part 20, which will be described later.

[0038] The following section will focus on a detailed description of the second locking element 4.

[0039] Reference Figure 1 , Figure 6 and Figure 7 The second locking member 4 is disposed at the tail end of the housing 1, that is, at the end where the terminal assembly 2 is inserted. As one of the optional embodiments of this solution, the second locking member 4 includes a main body 41 and a fixing part 42. A limiting slot 40 is formed on the main body 41, and the fixing part 42 is snap-fitted to the housing 1.

[0040] Specifically, the limiting slots 40 respectively since Figure 6 The top and bottom surfaces of the main body 41 are recessed, so the limiting slot 40 is an open slot. This can accommodate the fixing constraints of different cables 21 within a certain size deviation range. When there is an error in the installation size of the cable 21, the open limiting slot 40 can also be well adapted and facilitate the operator to inspect and maintain the cable 21.

[0041] In one example, two fixing parts 42 are provided, each integrally disposed at one end of the main body 41 in the third direction Y. The fixing parts 42 extend along the first direction X, forming a C-shaped structure with the main body 41. The fixing parts 42 are provided with fixing slots 420, corresponding to the reference. Figure 3 Fixing protrusions 16 are provided on the outer walls of both ends of the outer casing 1 in the third direction Y. The fixing slots 420 on the fixing part 42 engage with the fixing protrusions 16 to fix the second locking member 4 to the tail end of the outer casing 1. To facilitate the insertion of the fixing part 42, in Figure 3The upper and lower parts of the fixed protrusion 16 are provided with a protruding ridge 17. The two protruding ridges 17 restrict the groove for the insertion of the fixing part 42, thereby limiting and constraining the fixing part 42 and facilitating the installation of the second locking member 4.

[0042] Reference Figure 1 and Figure 7 As one optional embodiment of this solution, the second locking member 4 further includes an extension 43, which is disposed on the side of the main body 41 near the outer shell 1 and surrounds and fits the outer wall of the shielding shell 22. In this embodiment, since the outer diameter of the shielding shell 22 is larger than the outer diameter of the cable 21, the inner diameter of the extension 43 is larger than the inner diameter of the limiting slot 40 to fit the shielding shell 22. To achieve the above technical solution, the limiting slot 40 on the main body 41 provides limiting constraint on the cable 21, and the extension 43 provides limiting constraint on the shielding shell 22, thereby ensuring the overall fixing effect of the second locking member 4 on the terminal assembly 2, especially providing relatively stable fixing to the part of the terminal assembly 2 exposed outside the mating cavity 10, reducing the radial runout of the terminal assembly 2, and ensuring the reliability of the connection between the terminal assembly 2 and the outer shell 1.

[0043] Reference Figure 2 , Figure 3 and Figure 7 As one optional embodiment of this solution, the second locking member 4 further includes a foolproof rib 44. The foolproof rib 44 is disposed on the side of the main body 41 facing the outer shell 1, and the outer shell 1 is provided with a foolproof groove 11 on the side facing the second locking member 4. The foolproof rib 44 is inserted into the foolproof groove 11. By implementing the above technical solution, when operators or machines install the second locking member 4, the cooperation between the foolproof rib 44 and the foolproof groove 11 enables a more convenient and accurate installation process. It is understood that operators or machines rely on the cooperation between the foolproof rib 44 and the foolproof groove 11 as a reliable and stable judgment basis, thereby avoiding incorrect insertion by operators or machines and facilitating a high-efficiency production process. Furthermore, the insertion and cooperation between the foolproof rib 44 and the foolproof groove 11 provides a certain limiting force, thereby improving the stability of the connection between the second locking member 4 and the outer shell 1.

[0044] Reference Figure 2 , Figure 8 and Figure 9 As one of the optional embodiments of this solution, it also includes a third locking member 5. The housing 1 is provided with an opening 12 that extends along the second direction Z and communicates with the mating cavity 10. The opening 12 is located at the end of the housing 1 away from the second locking member 4. The third locking member 5 is snapped onto the housing 1 along the second direction Z to further limit the terminal assembly 2.

[0045] Specifically, the third locking member 5 includes a body portion 51 and a latching portion 52. The body portion 51 extends along a third direction Y, and the latching portion 52 is integrally disposed on both ends of the body portion 51 in the third direction Y. The latching portion 52 extends along a second direction Z, and the body portion 51 and the latching portion 52 form a C-shaped structure. The outer walls of the outer casing 1 on both sides in the third direction Y are provided with first protrusions 18, and the latching portion 52 on the side facing the outer casing 1 is provided with a second protrusion 521. The first protrusions 18 and the second protrusions 521 engage to fix the third locking member 5 to the outer casing 1. To improve the stability of the connection between the third locking member 5 and the outer casing 1, two independent second protrusions 521 and first protrusions 18 are provided.

[0046] The third locking member 5 also includes a fitting portion 53, which is disposed on the side of the body portion 51 facing the opening 12. The fitting portion 53 passes through the opening 12 and surrounds and fits against the outer wall of the shielding shell 22. To achieve the above technical solution, the second locking member 4 provides better limiting constraint on the portion of the terminal assembly 2 exposed in the mating cavity 10, while the fitting portion 53 further provides circumferential constraint force on the position of the shielding shell 22 away from the second locking member 4. The cooperation between the third locking member 5 and the second locking member 4 provides a more stable constraint on the terminal assembly 2, reduces the radial runout of each part of the terminal assembly 2, improves the stability of the connection between the terminal assembly 2 and the shell 1, and ensures the connection performance of the connector.

[0047] As one optional embodiment of this solution, the third locking member 5 further includes a positioning rib 54, which is disposed in the fitting portion 53. A positioning groove 13 is provided on the outer shell 1, and the positioning rib 54 is inserted into the positioning groove 13 along the second direction Z. By implementing the above technical solution, during the installation of the third locking member 5, the positioning rib 54 and the positioning groove 13 can provide accurate judgment criteria. For example, the machine can identify the positioning rib 54 to determine the installation orientation of the third locking member 5, avoiding misalignment or contact during installation and ensuring smooth installation of the third locking member 5.

[0048] As one optional embodiment of this solution, the main body 51 is provided with a holding groove 510, which is located on one side of the main body 51 along the third direction Y. The holding groove 510 is recessed along the first direction X, and the outer shell 1 is provided with a relief groove 14 communicating with the opening 12. To achieve the above technical solution, the design of the holding groove 510 facilitates the removal and placement of the third locking member 5. With the design of the relief groove 14, when it is necessary to disassemble the third locking member 5, a machine or tool can be inserted into the holding groove 510 along the relief groove 14, thereby making it easier to remove and facilitating the maintenance of the connector.

[0049] Back Figure 4As one optional embodiment of this solution, in the third direction Y, the fitting portion 53 abuts against the first locking member 3. To achieve the above technical solution, after the terminal assembly 2 is inserted into the mating cavity 10, the elastic deformation of the first locking member 3 achieves a snap-fit ​​engagement with the limiting portion 20. However, the elastic deformation is not stable and reliable enough. When the third locking member 5 is inserted and installed, because the fitting portion 53 abuts against the first locking member 3, the side of the first locking member 3 away from the terminal assembly 2 is supported by the fitting portion 53. This further ensures the stability of the first locking member 3, thereby providing a more reliable and stable limiting constraint for the terminal assembly 2, ensuring the stability of the connection between the terminal assembly 2 and the housing 1. Furthermore, the fitting portion 53 protrudes in the third direction Y, thus forming a snap-fit ​​engagement with the limiting portion 20. This, in turn, better limits the terminal assembly 2 in cooperation with the first locking member 3.

[0050] The above description is only a partial implementation of the embodiments of this application and is not intended to limit the application in any way. The protection scope of the embodiments of this application is not limited thereto. Any simple modifications, equivalent changes and alterations that can be easily conceived by those skilled in the art within the technical scope disclosed in the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A connector characterized by comprising: Having a first direction (X) and a second direction (Z) intersecting, comprising: a housing (1) having a mating cavity (10) through along the first direction (X); a terminal assembly (2) comprising a cable (21) and a shielding shell (22) fixedly covering the outside of the cable (21), the shielding shell (22) being provided with a limiting portion (20); a first locking member (3) elastically arranged on the inner wall of the mating cavity (10), the first locking member (3) being snap-fitted with the limiting portion (20) to limit the displacement of the terminal assembly (2) along the first direction (X); a second locking member (4) arranged on the housing (1), the second locking member (4) being provided with a limiting slot hole (40) surrounding the outer wall of the cable (21).

2. The connector of claim 1, wherein, The second locking member (4) comprises a main body portion (41) and a fixed portion (42), the limiting slot hole (40) being formed on the main body portion (41), and the fixed portion (42) being snap-connected with the housing (1).

3. The connector of claim 2, wherein, The second locking member (4) further comprises an extension portion (43) arranged on the main body portion (41) close to the housing (1), the extension portion (43) surrounding the outer wall of the shielding shell (22).

4. The connector of claim 2, wherein, The second locking member (4) further comprises a fool-proof protrusion (44) arranged on the main body portion (41) towards the housing (1), the housing (1) being provided with a fool-proof groove (11) on the side facing the second locking member (4), and the fool-proof protrusion (44) being inserted into the fool-proof groove (11).

5. The connector of claim 1 or 3, wherein A third locking member (5) is further included, the housing (1) being provided with an opening (12) through along the second direction (Z) and communicating with the mating cavity (10), the opening (12) being arranged at the end of the housing (1) away from the second locking member (4); The third locking member (5) is snap-connected with the housing (1) along the second direction (Z), the third locking member (5) comprising an embedding portion (53) passing through the opening (12) and surrounding the outer wall of the shielding shell (22).

6. The connector of claim 5, wherein, The third locking member (5) further comprises a main body portion (51) and a clamping portion (52), the embedding portion (53) being arranged on the main body portion (51) towards the opening (12), and the clamping portion (52) being arranged at both ends of the main body portion (51) and snap-connected with the housing (1).

7. The connector of claim 5, wherein The third locking member (5) further comprises a positioning protrusion (54) arranged on the embedding portion (53), the housing (1) being provided with a positioning groove (13), and the positioning protrusion (54) being inserted into the positioning groove (13) along the second direction (Z).

8. The connector of claim 6, wherein, A third direction (Y) is further included, the first direction (X), the second direction (Z) and the third direction (Y) intersecting with each other, the counter-coupling cavity (10) being provided with two rows along the second direction (Z), and each row of the counter-coupling cavity (10) being provided with three along the third direction (Y).

9. The connector of claim 8, wherein, In the third direction (Y), the fitting part (53) is in abutment with the first locking part (3).

10. The connector of claim 8, wherein, The body part (51) is provided with a holding groove (510) arranged on one side of the body part (51) along the third direction (Y), and the holding groove (510) is recessed along the first direction (X). The shell (1) is provided with an avoiding groove (14) in communication with the opening (12).

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