A waterproof terminal connector

Abstract

The utility model relates to terminal connector technical field, and disclose a waterproof terminal connector, include: outer ring plastic shell, bush, plug terminal, inner ring plastic shell and limit board, bush and the inner chamber sliding joint of outer ring plastic shell, inner ring plastic shell and limit board are connected, and inner ring plastic shell is assembled in the inner chamber of bush, and plug terminal is connected in the inner chamber of inner ring plastic shell, and the both sides of the upper end of outer ring plastic shell are all embedded with first clamping elastic plate, and the both sides of the outside of outer ring plastic shell are all assembled with second clamping elastic plate. The waterproof terminal connector, need not connect through bolt and lead to the problem of reduced assembly efficiency, and the problem that the sealing property reduces when easily producing gap during assembly, through the sealing expansion part of additional, through expansion, the gap between outer ring plastic shell and bush is completely closed, avoids the moisture of outside through the gap and enters the inside of device, thereby greatly improves the waterproof performance of device whole.

Description

Technical Field

[0001] This utility model relates to the field of terminal connector technology, specifically a waterproof terminal connector. Background Technology

[0002] Terminal connectors are accessories used to achieve electrical connections. They bridge gaps in a circuit or between isolated circuits, allowing current to flow and enabling the circuit to perform its intended function.

[0003] Existing terminal connectors are typically assembled using bolts, which results in gaps on the outside of the terminal connector housing. Over time, external moisture can enter the terminal connector through these gaps, affecting the internal components and reducing the overall lifespan of the terminal connector. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, this utility model provides a waterproof terminal connector to solve the technical problem that external moisture can enter the interior of the terminal connector through gaps, thereby affecting the internal components of the terminal connector and reducing the overall service life of the terminal connector.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a waterproof terminal connector, comprising: an outer plastic shell, a bushing, a plug terminal, an inner plastic shell, and a limiting plate. The bushing is slidably connected to the inner cavity of the outer plastic shell, and the inner plastic shell is connected to the limiting plate. The inner plastic shell is assembled in the inner cavity of the bushing, and the plug terminal is snapped into the inner cavity of the inner plastic shell. The upper ends of the outer plastic shell are each provided with a first snap-fit ​​spring plate, and the outer sides of the outer plastic shell are each provided with a second snap-fit ​​spring plate. The outer sides of the bushing are provided with a first snap-fit ​​groove, and the top of the bushing is provided with a second snap-fit ​​groove. The outer plastic shell near the bushing is provided with a sealing expansion part, and a valve is provided on the outer side of the sealing expansion part.

[0008] Preferably, the sealing expansion part includes an airbag, the airbag is covered with a rubber sleeve, and the end of the airbag away from the outer plastic shell is the expansion end. The airbag can be restarted through a valve, and the rubber sleeve improves the sealing effect of the sealing expansion part. When the sealing sleeve and the airbag are inflated, they can completely fit into the groove inside the bushing for sealing and fixation.

[0009] Preferably, the bushing has a groove on its outer side that matches the sealing expansion part, and the groove has a T-shaped cross-section, so that the bushing can be quickly connected, fixed and sealed with the outer plastic shell through the sealing expansion part.

[0010] Preferably, the limiting plate has terminals uniformly embedded inside, and a sealing sleeve is fitted at the junction of the terminals and the outer plastic shell. The terminals can electrically connect the device to external wiring.

[0011] Preferably, the inner side of the outer ring plastic shell and the outer side of the bushing are both rounded, and the outer side of the bushing is polished. The rounded corners improve the smoothness and stability of the device during snap-fit.

[0012] Preferably, guide blocks are connected to both sides of the bushing, and guide grooves that fit with the guide blocks are opened on the outside of the outer ring plastic shell. The guide blocks can guide the outer ring plastic shell and the bushing when they are connected, thereby improving the stability of the device when it is engaged.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a waterproof terminal connector with the following features:

[0015] Beneficial effects:

[0016] This waterproof terminal connector, through the addition of a first snap-fit ​​spring plate, a second snap-fit ​​spring plate, a first snap-fit ​​groove, and a second snap-fit ​​groove, quickly snaps together the outer ring plastic shell and the bushing. This eliminates the problems of reduced assembly efficiency and reduced sealing caused by traditional bolt connections, which can easily lead to gaps during assembly. At the same time, the added sealing expansion part completely seals the gap between the outer ring plastic shell and the bushing through expansion, preventing external moisture from entering the device through the gap, thereby significantly improving the overall waterproof performance of the device. Attached Figure Description

[0017] Figure 1 This is an exploded view of the present invention;

[0018] Figure 2 This is a schematic diagram of the assembly of this utility model;

[0019] Figure 3 This is a schematic diagram of the external appearance of the bushing of this utility model;

[0020] Figure 4 This is a schematic diagram of the outer plastic shell of this utility model.

[0021] In the figure: 1. Outer ring plastic shell; 11. First snap-fit ​​spring plate; 12. Second snap-fit ​​spring plate; 13. Sealing expansion part; 2. Bushing; 21. First slot; 22. Second slot; 23. Guide block; 3. Plug terminal; 4. Inner ring plastic shell; 5. Limiting plate; 51. Terminal part. Detailed Implementation

[0022] 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 protection scope of the present utility model.

[0023] This utility model provides a technical solution; please refer to [link / reference]. Figure 1 and Figure 2 A waterproof terminal connector includes: an outer plastic shell 1, a bushing 2, a plug terminal 3, an inner plastic shell 4, and a limiting plate 5. The bushing 2 is slidably connected to the inner cavity of the outer plastic shell 1, and the inner plastic shell 4 is connected to the limiting plate 5. The inner plastic shell 4 is assembled in the inner cavity of the bushing 2, and the plug terminal 3 is snapped into the inner cavity of the inner plastic shell 4. The upper ends of the outer plastic shell 1 are provided with first snap-fit ​​spring plates 11 on both sides, and the outer sides of the outer plastic shell 1 are provided with second snap-fit ​​spring plates 12. The outer sides of the bushing 2 are provided with first snap-fit ​​grooves 21, and the top sides of the bushing 2 are provided with second snap-fit ​​grooves 22. The outer plastic shell 1 is provided with a sealing expansion part 13 near the bushing 2, and a valve is provided on the outer side of the sealing expansion part 13.

[0024] The outer plastic shell 1, bushing 2, plug terminal 3, inner plastic shell 4, and limiting plate 5 are combined to form a common terminal connector in the prior art. The outer plastic shell 1 can be fitted onto the outside of the bushing 2 to form a whole with the bushing 2. The positions of the first snap-fit ​​spring plate 11 and the second snap-fit ​​spring plate 12 are provided with slots to facilitate movement. The first snap-fit ​​spring plate 11 and the second snap-fit ​​spring plate 12 are common elastic metal sheets in the prior art. The sealing expansion part 13 can be inserted into the inside of the bushing 2 to completely seal the outer plastic shell 1. The first snap-fit ​​groove 21 and the second snap-fit ​​groove 22 can cooperate with the insertion and snap-fit ​​of the first snap-fit ​​spring plate 11 and the second snap-fit ​​spring plate 12. The limiting plate 5 and the terminal part 51 can connect the device to the external circuit.

[0025] Please see Figure 3 and Figure 4The sealing expansion part 13 includes an airbag, the airbag is covered with a rubber sleeve, and the end of the airbag away from the outer plastic shell 1 is the expansion end. The airbag can be restarted through the valve, and the rubber sleeve improves the sealing effect of the sealing expansion part 13. When the sealing sleeve and the airbag are inflated, they can completely fit into the groove inside the bushing 2 for sealing and fixation.

[0026] The bushing 2 has a groove on its outside that matches the sealing expansion part 13, and the groove has a T-shaped cross section. The bushing 2 can be quickly connected, fixed and sealed with the outer ring plastic shell 1 through the sealing expansion part 13. The limiting plate 5 has terminal parts 51 evenly embedded inside, and a sealing sleeve is fitted at the junction of the terminal parts 51 and the outer ring plastic shell 1. The terminal parts 51 can electrically connect the device to the external circuit.

[0027] The inner side of the outer ring plastic shell 1 and the outer side of the bushing 2 are both rounded, and the outer side of the bushing 2 is polished. The rounded corners improve the smoothness and stability of the device when it is snapped together. Guide blocks 23 are connected to both sides of the bushing 2. The outer side of the outer ring plastic shell 1 is provided with guide grooves that fit with the guide blocks 23. The guide blocks 23 can guide the outer ring plastic shell 1 and the bushing 2 when they are connected, thereby improving the stability of the device when it is snapped together.

[0028] This solution first connects the outer ring plastic shell 1 to the bushing 2, then snaps the first snap-fit ​​spring plate 11 and the second snap-fit ​​spring plate 12 into the first snap-fit ​​groove 21 and the second snap-fit ​​groove 22. At the same time, the sealing expansion part 13 is inserted into the bushing 2. The external air source is then injected into the sealing expansion part 13 through the air valve to make it expand, thereby sealing and snapping the outer ring plastic shell 1 and the bushing 2, preventing external moisture from entering the device during use and causing damage to the electronic components.

[0029] By adding the first snap-fit ​​plate 11, the second snap-fit ​​plate 12, the first snap-fit ​​groove 21, and the second snap-fit ​​groove 22, the outer ring plastic shell 1 and the bushing 2 are quickly snapped together. This eliminates the need for traditional bolt connections, which reduces assembly efficiency and prevents gaps from forming during assembly, thus reducing sealing performance. At the same time, the added sealing expansion part 13 completely seals the gap between the outer ring plastic shell 1 and the bushing 2 through expansion, preventing external moisture from entering the device through the gap, thereby significantly improving the overall waterproof performance of the device.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof terminal connector, comprising: The device comprises an outer plastic shell, a bushing, a plug terminal, an inner plastic shell, and a limiting plate. The bushing is slidably connected to the inner cavity of the outer plastic shell, and the inner plastic shell is connected to the limiting plate. The inner plastic shell is assembled in the inner cavity of the bushing, and the plug terminal is snapped into the inner cavity of the inner plastic shell. The outer plastic shell has first snap-fit ​​spring plates embedded on both sides of its upper end, and second snap-fit ​​spring plates assembled on both sides of its outer exterior. The bushing has first snap-fit ​​grooves on both sides of its outer exterior, and second snap-fit ​​grooves on both sides of its top. A sealing expansion part is assembled at the end of the outer plastic shell near the bushing, and a valve is assembled on the outer side of the sealing expansion part.

2. A waterproof terminal connector according to claim 1, characterized in that: The sealing expansion part includes an airbag, the outside of which is fitted with a rubber sleeve, and the end of the airbag away from the outer plastic shell is the expansion end.

3. A waterproof terminal connector according to claim 1, characterized in that: The bushing has a groove on its outer side that matches the sealing expansion part, and the groove has a T-shaped cross-section.

4. A waterproof terminal connector according to claim 1, characterized in that: The limiting plate has terminals evenly embedded inside, and a sealing sleeve is fitted at the junction of the terminals and the outer plastic shell.

5. A waterproof terminal connector according to claim 1, characterized in that: The inner side of the outer ring plastic shell and the outer side of the bushing are both rounded, and the outer side of the bushing is polished.

6. A waterproof terminal connector according to claim 1, characterized in that: Guide blocks are connected to both sides of the bushing, and guide grooves that fit the guide blocks are opened on the outside of the outer ring plastic shell.

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