Glue overflow prevention structure and connector
By using a removable semi-circular ring-shaped overflow plug in the connector, combined with the mating connection of the positioning post and positioning hole, the problem of overflow during connector injection molding is solved, achieving low cost, high sealing performance, and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN REUNION ELECTRONICS CO LTD
- Filing Date
- 2025-01-02
- Publication Date
- 2026-04-17
AI Technical Summary
Existing connectors are prone to glue overflow during injection molding, which affects performance and increases costs. Traditional potting sealing methods are inefficient.
The gap between the outer cover and the electrical cable is sealed by assembling an overflow plug. The overflow plug consists of two detachable semi-circular rings that are connected by a positioning post and a positioning hole, and the tapered structure prevents overflow.
It achieves low cost, high sealing performance, simple and quick assembly, reduces production costs, improves production efficiency, and avoids overflow during injection molding.
Smart Images

Figure CN224138387U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connectors, specifically to an anti-overflow adhesive structure and connector. Background Technology
[0002] Connectors are used to transmit current or signals. A connector generally includes a cable, a plug, a housing, and a shell. The plug is connected to one end of the cable. The housing is wrapped around the cable and connected to the plug to improve structural stability. The shell is wrapped around the cable and plug to protect the connector.
[0003] The outer shell is generally made by injection molding. However, there is a gap between the outer shell and the cable. During injection molding, glue overflow is easy to occur, which affects the performance of the connector. At present, the problem is solved by injection molding and sealing the tail of the connector with glue. However, this method has high glue filling cost, low efficiency and long production turnaround time. Utility Model Content
[0004] To overcome the shortcomings of the existing technology, this utility model provides an anti-overflow adhesive structure and connector, which uses an assembled overflow plug to seal the gap between the outer cover and the wire and cable. The assembly is simple, the cost is low, the sealing performance is good, and production does not require waiting.
[0005] On the one hand, the technical solution adopted by this utility model to solve its technical problem is:
[0006] An anti-overflow adhesive structure includes an electrical cable, an outer cover, and an overflow plug. The overflow plug is disposed between the outer cover and the electrical cable. The overflow plug has a ring-shaped structure and is composed of two detachably connected semi-circular rings.
[0007] As a further improvement to the above technical solution, the two semicircular rings are detachably connected by a snap-fit structure.
[0008] As a further improvement to the above technical solution, the snap-fit structure includes a positioning post disposed on one of the semicircular rings and a positioning hole disposed on the other semicircular ring, wherein the positioning post and the positioning hole are inserted into each other.
[0009] As a further improvement to the above technical solution, the overflow plug includes a straight circular hole arranged along its axis and a conical outer inclined surface arranged on its outer wall. The outer cover has a conical inner inclined surface on the side near the power cable. The inner inclined surface and the power cable form a receiving space for placing the overflow plug. The outer inclined surface of the overflow plug fits into the inner inclined surface of the outer cover, and the straight circular hole of the overflow plug fits into the power cable.
[0010] As a further improvement to the above technical solution, the inner inclined surface is provided at the tail of the outer cover.
[0011] As a further improvement to the above technical solution, the overflow plug extends outside the receiving space.
[0012] On the other hand, the technical solution also provided by this utility model is:
[0013] A connector includes a plug, a housing, and an anti-overflow adhesive structure, wherein the plug is connected to the electrical cable, and the housing is wrapped around the outer cover and the outer periphery of the electrical cable.
[0014] As a further improvement to the above technical solution, the outer shell is an injection-molded outer shell.
[0015] The beneficial effects of this utility model are: the gap between the outer cover and the wire and cable is sealed by assembling an overflow plug, which is low in cost and has good sealing performance. The overflow plug is composed of two detachably connected semi-circular rings, which are assembled by inserting positioning pins and positioning holes respectively set on the two semi-circular rings. The assembly is simple and fast, and production does not require waiting. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] Figure 1 This is an assembly diagram of an anti-overflow adhesive structure according to an embodiment of this utility model;
[0018] Figure 2 yes Figure 1 A schematic diagram showing the concealed overflow plug;
[0019] Figure 3 This is a schematic diagram of the overflow plug in an anti-overflow adhesive structure according to an embodiment of this utility model;
[0020] Figure 4 This is a cross-sectional view of an anti-overflow adhesive structure according to an embodiment of this utility model;
[0021] Figure 5 This is a cross-sectional view of the overflow plug and outer cover according to an embodiment of the present utility model;
[0022] Figure 6 This is a cross-sectional view of a connector according to an embodiment of the present utility model.
[0023] Reference numerals: 1. Overflow plug; 101. First semicircular ring; 102. Second semicircular ring; 11. Positioning hole; 12. Positioning post; 13. Straight round hole; 14. Outer bevel; 2. Outer cover; 21. Inner bevel; 3. Electrical cable; 4. Outer shell; 5. Plug. Detailed Implementation
[0024] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / connections involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. For example, fixed connections / fixed installations can use screw connections, bolt connections, pin connections, key connections, adhesive connections, mortise and tenon connections, welding, riveting, etc., as needed. For detachable connections, screw connections, bolt connections, threaded connections, snap-fit connections, mortise and tenon connections, Velcro connections, etc., can be used as needed. The various technical features in this utility model can be combined interactively without contradicting each other.
[0025] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an anti-overflow adhesive structure, including a power cable 3, an outer cover 2, and an overflow plug 1. The overflow plug 1 is disposed between the outer cover 2 and the power cable 3, and the overflow plug 1 has a ring-shaped structure. (Refer to...) Figure 3 The overflow plug 1 consists of two detachably connected semi-circular rings, which are detachably connected by a snap-fit structure.
[0026] It is understandable that this utility model uses the method of assembling the overflow plug 1 to seal the gap between the outer cover 2 and the power cable 3, which is low in cost, has good sealing performance, and the overflow plug 1 is composed of two detachably connected semi-circular rings, which is convenient for assembly and improves production efficiency.
[0027] Furthermore, the snap-fit structure includes a positioning post 12 disposed on one of the semicircular rings and a positioning hole 11 disposed on the other semicircular ring. The positioning post 12 is inserted into the positioning hole 11. For ease of understanding, the two semicircular rings are respectively named the first semicircular ring 101 and the second semicircular ring 102. Specifically, the first semicircular ring 101 has a positioning post 12 and a positioning hole 11 disposed at both ends, and the second semicircular ring 102 also has a positioning post 12 and a positioning hole 11 disposed at both ends. By aligning and positioning the positioning post 12 with the positioning hole 11, the positioning post 12 of the first semicircular ring 101 is inserted into the positioning hole 11 of the second semicircular ring 102, and at the same time, the positioning post 12 of the second semicircular ring 102 is inserted into the positioning hole 11 of the first semicircular ring 101, thereby realizing the assembly of the overflow plug 1. The assembly is simple and quick, and the overflow plug 1 has a stable and reliable structure after assembly.
[0028] In this embodiment, refer to Figure 4 and Figure 5 The overflow plug 1 includes a straight circular hole 13 arranged along its axis and a conical outer inclined surface 14 arranged on its outer wall. The outer cover 2 is provided with a conical inner inclined surface 21 on the side near the power cable 3. The inner inclined surface 21 and the power cable 3 form a receiving space for placing the overflow plug 1. The outer inclined surface 14 of the overflow plug 1 is in close contact with the inner inclined surface 21 of the outer cover 2. The straight circular hole 13 of the overflow plug 1 is in close contact with the power cable 3. This tapered structure can prevent overflow of glue during injection molding by pressing it tighter.
[0029] Furthermore, the inner inclined surface 21 is provided at the tail of the outer cover 2, which facilitates the processing of the inner inclined surface 21.
[0030] Furthermore, the overflow plug 1 extends outside the receiving space, that is, the side length of the outer inclined surface 14 of the overflow plug 1 is greater than the side length of the inner inclined surface 21 of the outer cover 2, so as to facilitate the installation of the overflow plug 1.
[0031] An embodiment of this utility model also provides a connector, including a plug 5, a housing 4, and an anti-overflow adhesive structure. The plug 5 is connected to the cable 3, and the housing 4 is wrapped around the outer cover 2 and the outer periphery of the cable 3. The housing 4 is an injection-molded housing 4. It is understood that the anti-overflow adhesive structure can prevent overflow of adhesive during injection molding in connector production, reducing production costs, eliminating turnaround time, and improving production efficiency.
[0032] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. An anti-sag structure comprising an electrical cable and an outer cover, characterized by: It also includes an overflow plug, which is disposed between the outer cover and the power cable. The overflow plug has a ring-shaped structure and is composed of two detachably connected semi-circular rings. The two semi-circular rings are detachably connected by a snap-fit structure, which includes a positioning post disposed on one of the semi-circular rings and a positioning hole disposed on the other semi-circular ring. The positioning post and the positioning hole are inserted into each other.
2. The anti-bleed structure of claim 1, wherein: The overflow plug includes a straight circular hole along its axis and a conical outer inclined surface on its outer wall. The outer cover has a conical inner inclined surface on the side near the power cable. The inner inclined surface and the power cable form a receiving space for placing the overflow plug. The outer inclined surface of the overflow plug fits into the inner inclined surface of the outer cover, and the straight circular hole of the overflow plug fits into the power cable.
3. The anti-bleed structure of claim 2, wherein: The inner inclined surface is located at the tail of the outer cover.
4. The anti-bleed structure of claim 3, wherein: The overflow plug extends outside the receiving space.
5. A connector characterized by: It includes a plug, a housing, and an anti-overflow adhesive structure as described in any one of claims 1-4, wherein the plug is connected to the cable and the housing is wrapped around the outer cover and the outer periphery of the cable.
6. A connector according to claim 5, wherein: The outer shell is an injection-molded shell.