Heavy-load connector
By using the two -layer plastic protection structure in the heavy load connector, the problem of reduced waterproof performance of heavy loaders in existing technologies in existing technologies has been solved, and waterproof and mechanical properties are significantly improved.
Patent Information
- Application Number
- CN202420896755.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-28
AI Technical Summary
After long-term use of existing heavy-duty connectors in high and low temperature environments, their waterproof performance is reduced, resulting in unstable signal transmission.
Using the first and second plastic body of injection molding, the first plastic is filled between the main body of the connector and the shell. Essence
Through the protection of two layers of plastic, the waterproof performance and mechanical structural performance of the heavy load connector are significantly improved, and the cable's anti -bending ability and the waterproof performance of the wiring beam are enhanced.
Smart Images
Figure CN222422506U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of connectors, in particular to a heavy-load connector. Background Art
[0002] At present, heavy-duty connectors on cranes are used in various working conditions, such as high temperature, low temperature, rain and vibration, so heavy-duty connectors are waterproofed. The existing waterproof structure is: at the tail end of the heavy-duty connector, a heat shrink tube is first used to wrap the shell and the cable coming out of the shell, and then another heat shrink tube is wrapped outside the heat shrink tube to form a double layer of protection. However, in actual use, the waterproof performance is reduced after repeated use in high and low temperature environments, and the signal transmission is unstable. Utility Model Content
[0003] The utility model provides a heavy-duty connector, which is used to solve the problem that the waterproof performance of the heavy-duty connector protected by a double-layer heat shrink tube is reduced after long-term use.
[0004] The utility model provides a heavy-duty connector, comprising a shell and a connector body fixed in the shell, wherein a first plastic body formed by injection is filled between the shell and the connector body, the first plastic body extends to the outside of a cable, the outside of the first plastic body is wrapped with a second plastic body formed by injection, the front end of the second plastic body is clamped with the outside of the shell, and the rear end of the second plastic body is wrapped on the cable.
[0005] Preferably, the second plastic body is snap-connected with the first plastic body.
[0006] Preferably, the housing is provided with a first slot, and the second plastic body is provided with a first protrusion matched with the first slot.
[0007] Preferably, the housing is provided with a second slot, and the second plastic body is provided with a second protrusion matched with the second slot.
[0008] Preferably, a third slot is provided on the first plastic body near the housing, and a third protrusion matched with the third slot is provided on the second plastic body.
[0009] Preferably, the first plastic body is provided with a fourth slot, and the second plastic body is provided with a fourth protrusion matched with the fourth slot.
[0010] Preferably, the first plastic body is provided with a fifth slot, and the second plastic body is provided with a fifth protrusion matched with the fifth slot.
[0011] Preferably, the cable core in the cable is connected to the terminal in the connector body, the first plastic body wraps the cable core, and the fourth slot is arranged on the outside of the cable core.
[0012] Preferably, the groove depth of the fourth groove is greater than the groove depth of the third groove and the groove depth of the fifth groove.
[0013] Preferably, the diameter of the middle and rear sections of the first plastic body gradually decreases toward the direction of the cable, and the diameter of the middle and rear sections of the second plastic body gradually decreases toward the direction of the cable.
[0014] Compared with the prior art, the utility model casts the first plastic body through the injection molding process. After molding, the connector body, the first plastic body, the shell and the cable are integrated into one body, and the first plastic body is used to seal the gap between the shell and the connector body. The second plastic body is cast through the injection molding process. After molding, the first plastic body, the second plastic body, the cable and the shell are integrated into one body. Two layers of plastic bodies are provided on the outside of the cable, and two layers of plastic bodies are also provided at the connection between the cable and the connector body. The shell is embedded between the two layers of plastic bodies. This arrangement can improve the mechanical structure performance, enhance the cable's anti-bending ability and the harness's waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, 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 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.
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 It is a cross-sectional schematic diagram of the utility model;
[0018] Figure 3 for Figure 2 A magnified schematic diagram of the structure in the middle.
[0019] Reference numerals:
[0020] 1. Shell, 2. Connector body, 21. Terminal, 3. First plastic body, 4. Cable, 41. Cable core, 5. Second plastic body, 51. First protrusion, 52. Second protrusion, 53. Third protrusion, 54. Fourth protrusion, 55. Fifth protrusion, 56. Groove, 6. Sixth protrusion. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] Refer to the attached Figure 2 and attached Figure 3 The utility model provides a heavy-duty connector, comprising a housing 1 and a connector body 2 fixed in the housing 1, a first plastic body 3 formed by injection molding is filled between the housing 1 and the connector body 2, the first plastic body 3 extends to the outside of the cable 4, the outside of the first plastic body 3 is wrapped with a second plastic body 5 formed by injection molding, the front end of the second plastic body 5 is snap-fitted with the outside of the housing 1, and the rear end of the second plastic body 5 is wrapped on the cable 4. After the connector body 2 is installed in the housing 1, the first plastic body 3 is cast by injection molding, and after molding, the connector body 2, the first plastic body 3, the housing 1 and the cable 4 are integrated, and the first plastic body 3 is used to seal the gap between the housing 1 and the connector body 2. The second plastic body 5 is cast by the injection molding process. After molding, the first plastic body 3, the second plastic body 5, the cable 4 and the shell 1 are integrated into a whole. Two layers of plastic bodies are provided on the outside of the cable 4, and two layers of plastic bodies are also provided at the connection between the cable 4 and the connector body 2. The shell 1 is embedded between the two layers of plastic bodies. This arrangement can improve the mechanical structure performance, enhance the cable's anti-bending ability and the harness's waterproof performance.
[0023] As another embodiment of the present invention, the second plastic body 5 is snap-fitted with the first plastic body 3 . This arrangement helps to make the second plastic body 5 and the first plastic body 3 more firmly connected.
[0024] An implementation method of the second plastic body 5 being connected to the housing 1 is as follows: a first slot is provided on the housing 1 , and a first protrusion 51 matching with the first slot is provided on the second plastic body 5 .
[0025] Furthermore, the housing 1 is provided with a second slot, and the second plastic body 5 is provided with a second protrusion 52 that matches the second slot, which facilitates a more secure connection between the second plastic body 5 and the housing 1. Specifically, in the area where the housing 1 contacts the second plastic body 5, the diameter of the rear end of the housing 1 is greater than the diameter of other parts.
[0026] An implementation method of the second plastic body 5 being connected to the first plastic body 3 is as follows: the first plastic body 3 is provided with a third slot near the housing 1 , and the second plastic body 5 is provided with a third protrusion 53 that matches the third slot.
[0027] Furthermore, the first plastic body 3 is provided with a fourth slot, and the second plastic body 5 is provided with a fourth protrusion 54 that matches the fourth slot. This arrangement is conducive to making the second plastic body 5 and the first plastic body 3 more firmly connected.
[0028] Furthermore, the first plastic body 3 is provided with a fifth slot, and the second plastic body 5 is provided with a fifth protrusion 55 that matches the fifth slot, which is conducive to making the second plastic body 5 more firmly connected to the first plastic body 3. Specifically, the depth of the fourth slot is greater than the depth of the third slot and the depth of the fifth slot.
[0029] As another embodiment of the present utility model: the cable core 41 in the cable 4 is connected to the terminal 21 in the connector body 2, the first plastic body 3 wraps the cable core 41, the fourth slot is arranged on the outside of the cable core 41, and the fifth slot is arranged on the outside of the cable 4.
[0030] Specifically, the diameter of the middle and rear sections of the first plastic body 3 gradually decreases toward the cable 4 , and the diameter of the middle and rear sections of the second plastic body 5 gradually decreases toward the cable 4 .
[0031] As another embodiment of the present invention: Figure 1 The outer side of the housing 1 is provided with a sixth protrusion 6, and the sixth protrusion 6 is an integrally formed structure with the housing 1. The rear end of the second plastic body 5 is provided with a plurality of grooves 56.
[0032] Compared with the existing heavy-duty connector, the length of the housing 1 of the present invention is shorter.
[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A heavy-duty connector, characterized in that: It includes a shell and a connector body fixed in the shell, the shell and the connector body are filled with a first plastic body formed by injection, the first plastic body extends to the outside of the cable, the outside of the first plastic body is wrapped with a second plastic body formed by injection, the front end of the second plastic body is snap-connected to the outside of the shell, and the rear end of the second plastic body is wrapped around the cable.
2. The heavy-duty connector according to claim 1, characterized in that: The second plastic body is clamped with the first plastic body.
3. The heavy-duty connector according to claim 2, characterized in that: The shell is provided with a first slot, and the second plastic body is provided with a first protrusion matched with the first slot.
4. The heavy-duty connector according to claim 3, characterized in that: The shell is provided with a second slot, and the second plastic body is provided with a second protrusion matched with the second slot.
5. The heavy-duty connector according to claim 4, characterized in that: The first plastic body is provided with a third slot near the housing, and the second plastic body is provided with a third protrusion matched with the third slot.
6. The heavy-duty connector according to claim 5, characterized in that: The first plastic body is provided with a fourth slot, and the second plastic body is provided with a fourth protrusion matched with the fourth slot.
7. The heavy-duty connector according to claim 6, characterized in that: The first plastic body is provided with a fifth slot, and the second plastic body is provided with a fifth protrusion matched with the fifth slot.
8. The heavy-duty connector according to claim 7, characterized in that: The cable core in the cable is connected to the terminal in the connector body, the first plastic body wraps the cable core, and the fourth slot is arranged on the outside of the cable core.
9. The heavy-duty connector according to claim 8, characterized in that: The groove depth of the fourth groove is greater than the groove depth of the third groove and the groove depth of the fifth groove.
10. The heavy-duty connector according to claim 1, characterized in that: The diameter of the middle and rear sections of the first plastic body gradually decreases toward the cable direction, and the diameter of the middle and rear sections of the second plastic body gradually decreases toward the cable direction.