Insulating shell assembly and electrical connector

Abstract

The utility model discloses an insulating shell subassembly and electric connector relates to electric connector field, wherein, insulating shell subassembly includes: insulating inner frame, sets up first mounting hole, first mounting hole is set through insulating inner frame, and bottom cover is connected with insulating inner frame, and bottom cover still is used for covering one end of first mounting hole, and first connecting nut is connected with insulating inner frame through injection molding and is located in first mounting hole, and first connecting nut is used for fixed mounting connection copper bar. The utility model discloses technical scheme to propose insulating shell subassembly can carry out effective positioning to first connecting nut, avoids appearing and goes bad, and then reduces the scrap rate, improves production efficiency, and reduces cost.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to an insulating shell assembly and an electrical connector. Background Technology

[0002] With the rapid development of electronic equipment, communication facilities, and the automotive industry, the demand for electrical connectors, as key electronic components, is increasing daily, and their performance requirements are constantly rising. Among these, the insulating shell assemblies of electrical connectors are mostly formed using injection molding. To facilitate subsequent assembly and structural fixation, the industry commonly employs a method of directly embedding metal nuts (or other inserts) during the injection molding process of the insulating shell assembly to achieve the connection function or enhance local mechanical strength.

[0003] However, during injection molding, the nut needs to be pre-placed in the mold cavity and then encapsulated by the molten plastic after mold closing. But the nut is small and lightweight, and the mold cavity structure is complex, making precise positioning of the nut within the mold extremely difficult. It is prone to shifting, tilting, or even falling off during injection molding due to molten material impact or mold vibration. This results in a significant deviation in the relative position between the nut and the insulating shell assembly after molding, and the thread axis does not coincide with the design direction, leading to a high scrap rate for the insulating shell assembly and high production costs. Utility Model Content

[0004] The main purpose of this utility model is to provide an insulating shell assembly, which aims to solve the problem that the current insulating shell assembly is prone to defects such as nut misalignment during the production and molding process, resulting in high production costs.

[0005] To achieve the above objectives, this utility model proposes an insulating shell assembly, comprising: An insulating inner frame is provided with a first mounting hole, which penetrates the insulating inner frame. A bottom cover, connected to the insulating inner frame, and the bottom cover also serves to seal one end of the first mounting hole; and The first connecting nut is connected to the insulating inner frame by injection molding and is disposed in the first mounting hole. The first connecting nut is used to fix and install the connecting copper busbar.

[0006] In one embodiment, the insulating inner frame is provided with a first connecting portion, and the bottom cover is provided with a second connecting portion, wherein the first connecting portion and the second connecting portion are adapted to be connected.

[0007] In one embodiment, one of the first connecting portion and the second connecting portion is configured as a plug-in, and the other is configured as a socket, wherein the plug-in and the socket are interference-fitted.

[0008] In one embodiment, the bottom cover includes a main body and side parts, with side parts connected to both sides of the main body and the two side parts arranged opposite to each other. The insulating inner frame is provided with a clearance opening, and the side parts are used to block the clearance opening.

[0009] In one embodiment, the insulating shell assembly further includes a plurality of partitions, which are arranged to form a plurality of insertion channels, and the partitions are disposed on the insulating inner frame or the bottom cover.

[0010] In one embodiment, when the partition is disposed on the bottom cover, the partition is connected to a horizontal plate, which separates the plurality of insertion channels to form multiple layers.

[0011] In one embodiment, the insulating shell assembly further includes a second connecting nut, and the insulating inner frame has a second mounting hole through it. The second connecting nut is injection molded to the insulating inner frame and is disposed in the second mounting hole.

[0012] In one embodiment, both the first connecting nut and the second connecting nut are through-hole nuts.

[0013] In one embodiment, the outer peripheral walls of both the first connecting nut and the second connecting nut are provided with grooves, and the insulating inner frame is provided with a limiting protrusion that extends into the groove.

[0014] This utility model also proposes an electrical connector, which includes an insulating shell assembly as described above.

[0015] This utility model's technical solution employs a split design where the insulating shell assembly consists of a split inner insulating frame and a bottom cover. A first mounting hole is drilled through the inner insulating frame. This allows the portion of the mold used to position the first connecting nut during injection molding to extend into the mold from both ends of the first mounting hole to secure it. Furthermore, both ends of the first connecting nut can be positioned using the mold, preventing misalignment and reducing scrap rates, thus improving production efficiency and lowering costs. Additionally, sealing the first mounting hole with the bottom cover maintains excellent insulation between the internal wiring and the metal casing. Moreover, the split insulating shell simplifies the mold design for the inner insulating frame and extends the mold's lifespan. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of an embodiment of the insulating shell assembly provided by this utility model; Figure 2 A cross-sectional structural schematic diagram of an embodiment of the insulating shell assembly provided by this utility model; Figure 3 A schematic diagram of another embodiment of the insulating shell assembly provided by this utility model; Figure 4 This is a cross-sectional structural schematic diagram of another embodiment of the insulating shell assembly provided by this utility model.

[0018] Explanation of icon numbers: 100. Insulating inner frame; 110. First mounting hole; 120. Second mounting hole; 130. Insertion hole; 140. Clearance opening; 150. Limiting protrusion; 200. Bottom cover; 210. Insert; 220. Main body; 230. Side; 300. First connecting nut; 400. Partition; 410. Horizontal plate; 500, Plug-in Channel; 600. Second connecting nut; 700, Groove.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] In existing technologies, during the injection molding of insulating shell components, the nut needs to be pre-placed in the mold cavity and then encapsulated by the molten plastic after mold closing. However, the nut is small and lightweight, and the mold cavity structure is complex, making precise positioning of the nut in the mold extremely difficult. It is prone to displacement, tilting, or even falling off during injection molding due to molten material impact or mold vibration. This results in a large deviation in the relative position between the nut and the insulating shell component after molding, and the thread axis does not coincide with the design direction, leading to a high scrap rate and high production costs for the insulating shell components.

[0024] This utility model proposes an insulating shell assembly.

[0025] Please see Figures 1 to 4 In one embodiment of this utility model, the insulating shell assembly includes: an insulating inner frame 100, a bottom cover 200, and a first connecting nut 300. The insulating inner frame 100 has a first mounting hole 110 that penetrates through the insulating inner frame 100. The bottom cover 200 is connected to the insulating inner frame 100 and is also used to cover one end of the first mounting hole 110. The first connecting nut 300 is connected to the insulating inner frame 100 by injection molding and is disposed in the first mounting hole 110. The first connecting nut 300 is used to fix and connect the copper busbar.

[0026] It should be noted that the insulating shell assembly is used to install on connectors with metal shells to ensure that the internal circuitry does not conduct electricity with the metal shell; otherwise, there may be risks of electric shock, leakage, or fire. The first connecting nut 300 is used to securely install the connecting copper busbar, which enables electrical connection, such as to electrical terminals or other components.

[0027] Compared to the integrated structure of the insulating shell in existing technologies, this embodiment adopts a split structure for the insulating shell. Specifically, the insulating components of the insulating shell assembly that provide insulation are the insulating inner frame 100 and the bottom cover 200. Thus, the insulating shell assembly adopts a split structure with the insulating inner frame 100 and the bottom cover 200 connected, and both are injection molded separately, simplifying the mold. Furthermore, in the specific implementation process, the insulating inner frame 100 has a through hole 110. It can be understood that the first mounting hole 110 is a through hole, with both ends communicating with the outside. The insulating inner frame 100 can be of any shape, as long as it meets the design requirements. The first mounting hole 110 is used to install the first connecting nut 300. The first connecting nut 300 and the first mounting hole 110 are arranged in a one-to-one correspondence and are coaxially arranged to ensure the installation accuracy of the first connecting nut 300. In addition, multiple sets of first connecting nuts 300 and first mounting holes 110 can be provided, depending on the actual connection terminal pin design.

[0028] The first connecting nut 300 is used to fix the connecting copper busbar. Specifically, the connecting copper busbar is located on the side of the insulating inner frame 100 opposite to the bottom cover 200. The connecting copper busbar and corresponding terminal pins are fixed at the first connecting bolt by screws or other connectors to achieve circuit conduction. The bottom cover 200 is compatible with the insulating inner frame 100 and is used to cover the first mounting hole 110 to ensure good insulation of the insulating shell and prevent leakage. The first connecting nut 300 is a copper nut to ensure current transmission efficiency. The bottom cover 200 and the insulating inner frame 100 can be directly fixed and snapped together or connected by connectors, etc., which is not limited in this embodiment, as long as it can ensure that the bottom cover 200 will not fall off automatically.

[0029] This utility model's technical solution employs a split design where the insulating shell assembly consists of an insulating inner frame 100 and a bottom cover 200 connected together. A first mounting hole 110 is formed through the insulating inner frame 100. This allows the portion of the mold used to position the first connecting nut 300 during injection molding to extend into the mold from both ends of the first mounting hole 110 to secure it. Furthermore, both ends of the first connecting nut 300 can be positioned using the mold, preventing misalignment and reducing scrap rates, thus improving production efficiency and lowering costs. Additionally, the bottom cover 200 seals the first mounting hole 110, maintaining excellent insulation between the internal wiring and the metal casing. Moreover, the split insulating shell simplifies the mold design for the insulating inner frame 100 and extends the mold's lifespan.

[0030] In one embodiment, the insulating inner frame 100 is provided with a first connecting portion, and the bottom cover 200 is provided with a second connecting portion, and the first connecting portion and the second connecting portion are adapted to be connected.

[0031] In the specific implementation process, the insulating inner frame 100 and the bottom cover 200 are fixed by the adaptation connection of the first connecting part and the second connecting part. The first connecting part and the second connecting part can be the adaptation plug-in, adaptation snap-in or locking fixation and other connection methods and corresponding structures. In this embodiment, no limitation is made. As long as the insulation effect is not affected, the insulating inner frame 100 and the bottom cover 200 can be fixedly connected.

[0032] In one embodiment, one of the first connecting portion and the second connecting portion is configured as a plug 210, and the other is configured as a socket 130, with the plug 210 and the socket 130 being interference fit.

[0033] In the specific implementation process, the bottom cover 200 covers the insulating inner frame 100. A plug-in 210 protrudes from the side of the bottom cover 200 facing the insulating inner frame 100. An insertion hole 130 is provided on the side of the insulating inner frame 100 facing the bottom cover 200 to accommodate the plug-in 210. The plug-in 210 is interference-fitted into the insertion hole 130 to fix the bottom cover 200 to the insulating inner frame 100. Multiple sets of plug-ins 210 and insertion holes 130 are provided and arranged at intervals along the direction of the first mounting hole 110.

[0034] In one embodiment, the bottom cover 200 includes a main body 220 and a side part 230. The side part 230 is connected to both sides of the main body 220 and the two side parts 230 are arranged opposite to each other. The insulating inner frame 100 is provided with a clearance opening 140, and the side part 230 is used to block the clearance opening 140.

[0035] In this embodiment, the main body 220 is used to cover the first mounting hole 110, and the side portion 230 extends toward the insulating inner frame 100 and connects to the insulating inner frame 100. The first connecting portion is provided on the main body 220. Specifically, the side wall of the insulating inner frame 100 has a clearance opening 140, the side portion 230 is located at the clearance opening 140, and is connected to the insulating inner frame 100.

[0036] The insulating housing assembly also includes multiple partitions 400, which are arranged to form multiple insertion channels 500. The partitions 400 are located in the insulating inner frame 100 or the bottom cover 200. It should be noted that the insertion channels 500 are used to accommodate terminal pins or connecting wires, etc. The terminal pins extend from the insertion channels 500 to the first mounting hole 110 and are fixed to the first connecting nut 300 by connecting screws.

[0037] refer to Figure 1 and Figure 2 As shown, in one embodiment, when the partition 400 is disposed on the insulating inner frame 100, specifically, the partition 400 is connected to the insulating inner frame 100, and multiple partitions 400 are provided, forming an insertion channel 500 between two partitions 400. The main body 220 also covers the insertion channel 500 to ensure good insulation effect. (Reference) Figure 3 and Figure 4 As shown, in another embodiment, the partition 400 is disposed on the bottom cover 200. Specifically, the partition 400 is connected to the main body 220. In this case, the side portion 230 and the partition 400 form an insertion channel 500, which is disposed on the bottom cover 200. Further, when the partition 400 is disposed on the bottom cover 200, the partition 400 is connected to a horizontal plate 410, which divides the multiple insertion channels 500 into multiple layers to accommodate multi-terminal pins.

[0038] In one embodiment, the insulating shell assembly further includes a second connecting nut 600, and the insulating inner frame 100 has a second mounting hole 120 through it. The second connecting nut 600 is injection molded to the insulating inner frame 100 and is disposed in the second mounting hole 120.

[0039] The second connecting nut 600 is used to install connecting copper busbars or other components, see reference. Figure 1 and Figure 2 As shown, one end of the second mounting hole 120 is connected to the outside through the insertion channel 500, which also enables the positioning of the second connecting nut 600. (Refer to...) Figure 3 and Figure 4 As shown, after the bottom cover 200 is removed, the second mounting hole 120 is directly connected to the external connection, which facilitates the positioning of the second connecting nut 600.

[0040] In practice, both the first connecting nut 300 and the second connecting nut 600 are through-hole nuts. Compared with blind-hole nuts in the prior art, this reduces the nut length, improves machinability, and lowers costs.

[0041] In order to improve the connection strength between the first connecting nut 300 and the second connecting nut 600 and the insulating inner frame 100 respectively, in one embodiment, the outer peripheral walls of the first connecting nut 300 and the second connecting nut 600 are provided with grooves 700, and the insulating inner frame 100 is provided with limiting protrusions 150, which extend into the grooves 700 to increase the connection contact surface between the two and improve the connection strength.

[0042] This utility model also proposes an electrical connector, which includes an insulating shell assembly. The specific structure of the insulating shell assembly is as described in the above embodiments. Since this electrical connector adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The insulating shell assembly is used to connect to a connector with a metal outer shell to ensure that the internal circuitry cannot conduct electricity with the metal outer shell, thus avoiding risks such as electric shock, leakage, and fire.

[0043] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the inventive concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. An insulating shell assembly, characterized in that, include: An insulating inner frame has a first mounting hole that penetrates through the insulating inner frame; the insulating inner frame also has a first connecting portion. A bottom cover, connected to the insulating inner frame, and also used to seal one end of the first mounting hole; the bottom cover includes a main body and side parts, with side parts connected to both sides of the main body, and the two side parts are arranged opposite to each other; the insulating inner frame has a clearance opening, and the side parts are used to block the clearance opening; the bottom cover has a second connecting part, and the first connecting part and the second connecting part are adapted to be connected; one of the first connecting part and the second connecting part is configured as a plug-in, and the other is configured as a socket, with the plug-in and the socket having an interference fit; and The first connecting nut is connected to the insulating inner frame by injection molding and is disposed in the first mounting hole. The first connecting nut is used to fix and install the connecting copper busbar. Multiple partitions are arranged to form multiple insertion channels, and the partitions are located in the insulating inner frame or the bottom cover; The second connecting nut has a second mounting hole through the insulating inner frame. The second connecting nut is injection molded to the insulating inner frame and is disposed in the second mounting hole. Both the first connecting nut and the second connecting nut are through-hole nuts. The outer peripheral walls of both the first connecting nut and the second connecting nut are provided with grooves. The insulating inner frame is provided with a limiting protrusion that extends into the groove.

2. The insulating shell assembly as claimed in claim 1, characterized in that, When the partition is located on the bottom cover, the partition is connected to a horizontal plate, which separates the multiple insertion channels to form multiple layers.

3. An electrical connector, characterized in that, The electrical connector includes an insulating shell assembly as described in any one of claims 1-2.

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