Wire holder assembly

Abstract

The utility model discloses a wire holder assembly, which comprises a conductive terminal and a plastic part, the conductive terminal comprises a first connecting part, a main body part and a second connecting part, the first connecting part and the second connecting part are respectively arranged at two sides of the main body part, and the outer wall of the main body part is provided with a groove which is formed by sinking inwards along the radial direction of the main body part. Connecting teeth are further arranged on the outer wall of the main body part; according to the design, when the plastic part is injection-molded on the outer side of the conductive terminal through an integral molding process, one part of the plastic part is embedded into the groove and the gap between the two adjacent connecting teeth, so that the combination area between the plastic part and the conductive terminal is increased, the conductive terminal and the plastic part can be in sealed connection, and the sealing performance of the conductive terminal is improved. Moreover, the conductive terminals can be limited, and sealing connection can be realized without a metal lining, a plurality of O-shaped sealing rings and fastening nuts, so that a subsequent insertion and assembly step is not needed, the production difficulty is reduced, the production period is shortened, and the production cost is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wiring sockets, and more specifically to a wiring socket assembly. Background Art

[0002] With the development of science and technology and the improvement of living standards, people's demand for electronic products is becoming increasingly strong. Electrical connectors are widely used in power systems, communication networks, financial manufacturing, elevators, industrial automation, medical equipment, office equipment, home appliances, military manufacturing, automotive and other industries. They are mainly used to connect electronic products or signal transmission between components in electronic products.

[0003] Traditional terminal blocks such as Figure 1 As shown, the terminal block generally includes a terminal and a plastic shell wrapped around the terminal. The terminal and the plastic shell are sealed and connected by a metal bushing, a plurality of O-rings and a fastening nut. However, after long-term use, it is found that this assembly method has the following defects and shortcomings:

[0004] a. The terminal block has many sealing assembly parts, which leads to a long assembly cycle;

[0005] b. The plastic shell of the terminal block is difficult to assemble with other parts after injection molding, making assembly difficult;

[0006] c. The O-ring is easily squeezed during assembly, resulting in sealing failure;

[0007] d. Nuts need to be tightened after assembly, which increases assembly costs and tooling equipment. Utility Model Content

[0008] In order to overcome the deficiencies of the prior art, the utility model provides a terminal block assembly, which not only solves the problems of long assembly cycle and great assembly difficulty of the prior terminal blocks, but also improves the sealing and connection stability between the conductive terminals and the plastic parts.

[0009] The technical solution of the utility model is as follows: A wiring socket assembly comprises:

[0010] A conductive terminal, the conductive terminal comprising a first connecting portion, a main body portion and a second connecting portion, the first connecting portion and the second connecting portion are respectively arranged on both sides of the main body portion, the outer wall of the main body portion is provided with a groove formed by being recessed radially inwardly along the main body portion, and the outer wall of the main body portion is also provided with connecting teeth;

[0011] A plastic component is integrally formed on the outer side of the conductive terminal, the plastic component surrounds at least a portion of the outer wall of the main body, and a portion of the plastic component is embedded in the groove and in the gap between two adjacent connecting teeth.

[0012] Furthermore, the cross-sectional shape of the connecting tooth in the vertical direction is one of a rectangle, a triangle and a trapezoid.

[0013] Furthermore, a glue injection groove is provided in the plastic part, the first connection part extends and protrudes outward through the glue injection groove, and a gap for accommodating glue is provided between an outer wall of the first connection part and an inner wall of the glue injection groove.

[0014] Furthermore, an arcuate transition surface is provided at the connection between the first connecting portion and the main body portion, and the plastic part is correspondingly provided with an annular clamping protrusion, the inner wall of the annular clamping protrusion is in contact with the arcuate transition surface, and the annular clamping protrusion protrudes outward along the axial direction of the first connecting portion to form an annular sealing portion, the inner surface of the annular sealing portion is in contact with the first connecting portion, and the outer surface of the annular sealing portion is an inclined surface inclined outward along the radial direction of the annular sealing portion.

[0015] Furthermore, the plastic part includes a plastic body and a mounting portion formed by extending and protruding outward from the plastic body, the plastic body surrounds at least a portion of the conductive terminal, and the mounting portion is provided with a mounting hole that penetrates through the thickness of the mounting portion.

[0016] Furthermore, a metal bushing is arranged in the mounting hole.

[0017] Furthermore, the plastic body and the mounting portion are an integrated structure.

[0018] Furthermore, the first connecting portion, the main body and the second connecting portion are an integrated structure.

[0019] Further, the diameter of the first connecting portion is smaller than the diameter of the main body portion, and the diameter of the first connecting portion is larger than the diameter of the second connecting portion.

[0020] Further, the main body includes a first convex portion and a second convex portion, a gap between the first convex portion and the second convex portion forms the groove, and the connecting tooth is arranged on the first convex portion.

[0021] According to the above scheme, the utility model has the beneficial effect that: a terminal block assembly provided by the embodiment of the utility model includes a conductive terminal and a plastic part, the conductive terminal includes a first connecting part, a main body part and a second connecting part, the first connecting part and the second connecting part are respectively arranged on both sides of the main body part, the outer wall of the main body part is provided with a groove formed by being recessed radially inward along the main body part, and the outer wall of the main body part is also provided with connecting teeth; in this way, when the plastic part is injection molded on the outer side of the conductive terminal through an integrated molding process, the plastic part surrounds at least a part of the outer wall of the main body part, and a part of the plastic part is embedded in the groove and in the gap between two adjacent connecting teeth, thereby increasing the bonding area between the plastic part and the conductive terminal, not only enabling a sealed connection between the conductive terminal and the plastic part, but also enabling the conductive terminal to be limited so that the conductive terminal can be fixed in the plastic part, without the need for a metal bushing, a plurality of O-rings and a fastening nut to achieve a sealed connection, thereby eliminating the need for subsequent insertion and assembly steps, reducing the production difficulty and production cycle, thereby reducing the production cost, and improving the sealing and connection stability between the conductive terminal and the plastic part. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of an existing wiring socket;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the wiring socket in the embodiment of the utility model;

[0025] Figure 3 This is one of the cross-sectional views of the wiring socket in the embodiment of the utility model;

[0026] Figure 4 for Figure 3 A local enlarged schematic diagram;

[0027] Figure 5 It is a schematic diagram of the structure of the conductive terminal in the embodiment of the utility model;

[0028] Figure 6 This is the second cross-sectional view of the wiring socket in the embodiment of the utility model;

[0029] Figure 7 This is the third cross-sectional view of the wiring socket in the embodiment of the utility model.

[0030] In the figure, 1, conductive terminal; 11, first connecting part; 111, arc-shaped transition surface; 12, main body; 121, groove; 122, connecting tooth; 123, first convex part; 124, second convex part; 13, second connecting part; 2, plastic part; 2a, plastic body; 2b, mounting part; 21, glue injection groove; 22, annular clamping protrusion; 221, annular sealing part; 2211, inclined surface; 23, mounting hole; 3, metal bushing; 4, wiring terminal; 5, plastic shell; 6, O-ring; 7, fastening nut. DETAILED DESCRIPTION

[0031] The following detailed description and drawings of the embodiments of the present invention are used to illustrate the principle of the present invention, but cannot be used to limit the scope of the present invention, that is, the present invention is not limited to the embodiments described.

[0032] In order to better understand the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0033] See also Figure 2 and Figure 5 As shown, a terminal block assembly provided by an embodiment of the utility model includes a conductive terminal 1 and a plastic part 2, the conductive terminal 1 includes a first connecting portion 11, a main body 12 and a second connecting portion 13, the first connecting portion 11 and the second connecting portion 13 are respectively arranged on both sides of the main body 12, the outer wall of the main body 12 is provided with a groove 121 formed by radially inward depression along the main body 12, and the outer wall of the main body 12 is also provided with connecting teeth 122; the plastic part 2 is integrally formed on the outer side of the conductive terminal 1, the plastic part 2 surrounds at least a part of the outer wall of the main body 12, and a part of the plastic part 2 is embedded in the groove 121 and in the gap between two adjacent connecting teeth 122. With such a design, when the plastic part 2 is injection molded on the outer side of the conductive terminal 1 through an integrated molding process, the plastic part 2 surrounds at least a portion of the outer wall of the main body 12, and a portion of the plastic part 2 is embedded in the groove 121 and in the gap between two adjacent connecting teeth 122, thereby increasing the bonding area between the plastic part 2 and the conductive terminal 1, which not only enables a sealed connection between the conductive terminal 1 and the plastic part 2, but also enables the conductive terminal 1 to be limited so that the conductive terminal 1 can be fixed in the plastic part 2 without the need for a sealed connection through a metal bushing 3, a plurality of O-rings 6, and a fastening nut 7, thereby eliminating the need for subsequent insertion and assembly steps, reducing the production difficulty and production cycle, thereby reducing the production cost, and improving the sealing and connection stability between the conductive terminal and the plastic part.

[0034] See also Figure 6-7As shown, the cross-sectional shape of the connecting teeth 122 in the vertical direction is one of a rectangle, a triangle and a trapezoid. In the present embodiment, three conductive terminals 1 are provided. In the vertical direction of the conductive terminals 1, the cross-sectional shapes of the connecting teeth 122 of the three conductive terminals 1 are all triangles. In another embodiment, the cross-sectional shapes of the connecting teeth 122 of the three conductive terminals 1 are rectangle, trapezoid and triangle from left to right. Of course, it is worth mentioning that those skilled in the art can select the number of conductive terminals 1 to be provided according to actual needs. Similarly, the shapes of the connecting teeth 122 of the multiple conductive terminals 1 in the same wiring seat can all be rectangles, triangles or trapezoids. The connecting teeth 122 of the multiple conductive terminals 1 in the same wiring seat can also adopt different shapes, such as: at least one of the multiple conductive terminals 1 has a triangular connecting tooth 122, at least one of the multiple conductive terminals 1 has a trapezoidal connecting tooth 122, and at least one of the multiple conductive terminals 1 has a rectangular connecting tooth 122. The specific structure can be as shown in the drawings of the specification. Figure 7 shown.

[0035] See also Figure 3 As shown, a glue injection groove 21 is provided in the plastic part 2, and the first connection part 11 extends outward through the glue injection groove 21, and a gap for accommodating glue is provided between the outer wall of the first connection part 11 and the inner wall of the glue injection groove 21. When the conductive terminal 1 is placed in the mold, and the plastic part 2 is formed on the outer side of the conductive terminal 1 through an integrated molding process, it is only necessary to inject glue into the glue injection groove 21 so that the glue fills the gap between the outer wall of the first connection part 11 and the inner wall of the glue injection groove 21, thereby achieving secondary sealing, further enhancing the sealing performance of the terminal block, and no need to lock the seal through a nut, further reducing the production cost.

[0036] See also Figure 4 As shown, the connection between the first connection part 11 and the main body 12 is provided with an arc-shaped transition surface 111, and the plastic part 2 is correspondingly provided with an annular clamping protrusion 22, the inner wall of the annular clamping protrusion 22 is in contact with the arc-shaped transition surface 111, and the annular clamping protrusion 22 protrudes outward along the axis direction of the first connection part 11 with an annular sealing part 221, the inner surface of the annular sealing part 221 is in contact with the first connection part 11, and the outer surface of the annular sealing part 221 is an inclined surface 2211 inclined outward along the radial direction of the annular sealing part 221. This design expands the bonding area between the plastic part 2 and the conductive terminal 1, not only realizing a sealed connection between the conductive terminal 1 and the plastic part 2, but also limiting the conductive terminal 1, so that the conductive terminal 1 can be fixed in the plastic part 2 without the need for subsequent insertion and assembly, which greatly simplifies the assembly process and improves production efficiency.

[0037] See also Figure 2As shown, the plastic part 2 includes a plastic body 2a and a mounting portion 2b formed by extending and protruding outward from the plastic body 2a, the plastic body 2a surrounds at least a portion of the conductive terminal 1, and the mounting portion 2b is provided with a mounting hole 23 that penetrates the thickness of the mounting portion 2b. In this embodiment, the plastic part 2 is mounted on the panel of the chassis through the mounting hole 23. Specifically, the mounting hole 23 in this embodiment is used to screw in a screw to lock the plastic part 2 on the panel of the chassis through the screw.

[0038] Without taking additional measures, when the screw is directly screwed into the mounting hole 23 for installation, the force-bearing surface of the screw will directly act on the inner wall of the mounting hole 23. Due to various factors such as material strength and screw tightening force, the mounting portion 2b is prone to cracking, thereby affecting the overall structure of the plastic part 2. Based on this, see Figure 6-7 As shown, the mounting hole 23 in this embodiment is provided with a metal bushing 3. By overmolding the metal bushing 3 in the mounting hole 23, the force-bearing surface of the screw no longer directly acts on the inner wall of the mounting hole 23 of the mounting portion 2b, but acts on the stronger and stronger metal bushing 3, which greatly reduces the risk of cracking of the mounting portion 2b due to excessive local force. Secondly, the metal bushing 3 itself has high wear resistance and corrosion resistance, and can maintain good performance even in long-term use or harsh environments, which helps to extend the service life of the connector and reduce the maintenance and replacement costs caused by damage to the mounting hole 23. It is worth mentioning that due to the presence of the metal bushing 3, the screw is easy to screw in during the installation process, reducing the risk of damaging the mounting hole 23 due to improper operation during the installation process.

[0039] Preferably, the plastic body 2a and the mounting portion 2b are an integral structure.

[0040] Preferably, the first connecting portion 11, the main body 12 and the second connecting portion 13 are an integral structure.

[0041] Preferably, the diameter of the first connection portion 11 is smaller than the diameter of the main body portion 12 , and the diameter of the first connection portion 11 is larger than the diameter of the second connection portion 13 .

[0042] Preferably, the main body 12 includes a first convex portion 123 and a second convex portion 124, the gap between the first convex portion 123 and the second convex portion 124 forms a groove 121, and the connecting teeth 122 are arranged on the first convex portion 123. In this embodiment, the groove 121 is annularly arranged on the outer wall of the main body 12, and the conductive terminal 1 can be limited by the cooperation between the groove 121 and the plastic part 2. Such a design will not increase the production cost, but also can enhance the connection firmness between the conductive terminal 1 and the plastic part 2, thereby preventing the conductive terminal 1 from falling off.

[0043] It should be noted that the indicated orientation or position relationship is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the application product is usually placed when used, or is the orientation or position relationship commonly understood by technical personnel in this field, or is the orientation or position relationship in which the application product is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0044] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

[0045] The above is an exemplary description of the utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model patent is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A terminal block assembly, characterized in that: include: A conductive terminal (1), the conductive terminal (1) comprising a first connecting portion (11), a main body portion (12) and a second connecting portion (13), the first connecting portion (11) and the second connecting portion (13) being respectively arranged on both sides of the main body portion (12), the outer wall of the main body portion (12) being provided with a groove (121) which is recessed radially inwardly along the main body portion (12), and the outer wall of the main body portion (12) being further provided with connecting teeth (122); A plastic part (2), the plastic part (2) being integrally formed on the outer side of the conductive terminal (1), the plastic part (2) surrounding at least a portion of the outer wall of the main body (12), and a portion of the plastic part (2) being embedded in the groove (121) and in the gap between two adjacent connecting teeth (122).

2. A terminal block assembly according to claim 1, characterized in that: The cross-sectional shape of the connecting tooth (122) in the vertical direction is one of a rectangle, a triangle and a trapezoid.

3. A terminal block assembly according to claim 1, characterized in that: A glue injection groove (21) is provided in the plastic part (2), the first connecting portion (11) passes through the glue injection groove (21) and extends outwardly, and a gap for accommodating glue is provided between the outer wall of the first connecting portion (11) and the inner wall of the glue injection groove (21).

4. A terminal block assembly according to claim 1, characterized in that: An arcuate transition surface (111) is provided at the connection between the first connecting portion (11) and the main body portion (12), and the plastic part (2) is correspondingly provided with an annular clamping protrusion (22), the inner wall of the annular clamping protrusion (22) is in contact with the arcuate transition surface (111), and the annular clamping protrusion (22) protrudes outward along the axial direction of the first connecting portion (11) to form an annular sealing portion (221), the inner surface of the annular sealing portion (221) is in contact with the first connecting portion (11), and the outer surface of the annular sealing portion (221) is an inclined surface (2211) inclined outward along the radial direction of the annular sealing portion (221).

5. A terminal block assembly according to claim 1, characterized in that: The plastic part (2) comprises a plastic body (2a) and a mounting portion (2b) formed by extending and protruding outward from the plastic body (2a); the plastic body (2a) surrounds at least a portion of the conductive terminal (1); and the mounting portion (2b) is provided with a mounting hole (23) that penetrates the thickness of the mounting portion (2b).

6. A terminal block assembly as claimed in claim 5, characterized in that: A metal bushing (3) is arranged in the mounting hole (23).

7. A terminal block assembly according to claim 5, characterized in that: The plastic body (2a) and the mounting portion (2b) are an integral structure.

8. The terminal block assembly according to claim 1, characterized in that: The first connecting portion (11), the main body (12) and the second connecting portion (13) are an integrated structure.

9. The terminal block assembly according to claim 1, characterized in that: The diameter of the first connecting portion (11) is smaller than the diameter of the main body portion (12), and the diameter of the first connecting portion (11) is larger than the diameter of the second connecting portion (13).

10. The terminal block assembly according to claim 1, characterized in that: The main body (12) comprises a first convex portion (123) and a second convex portion (124); a gap between the first convex portion (123) and the second convex portion (124) forms the groove (121); and the connecting tooth (122) is arranged on the first convex portion (123).

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