Waterproof plug of controller
By adding a sealing groove and a fixing groove to the side wall of the plug body, combined with the locking structure and guide groove, the sealing stability problem of the controller waterproof plug is solved, achieving a more stable sealing effect and plug anti-reverse function.
Patent Information
- Application Number
- CN202520084387.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Existing controllers have poor waterproof sealing stability, making it difficult to effectively prevent moisture from entering.
A sealing groove and a fixing groove are added to the side wall of the plug body. The sealing element is sleeved in the sealing groove and the fixing element is snapped into the fixing groove. After the terminal is inserted, a locking structure is formed, and a guide groove is provided on one side of the contact section to prevent reverse insertion.
It improves the sealing effect of the plug, prevents moisture from entering, and uses guide grooves to prevent reverse insertion and damage to the terminals.
Smart Images
Figure CN223744003U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to connector manufacturing technology, specifically to a waterproof plug for a controller. Background Technology
[0002] A controller is a conductor device that bridges two conductors in a circuit, allowing current or a signal to flow from one conductor to the other. It is widely used in various electrical circuits to connect or disconnect current or signals. This connection can be temporary and easily plugged in and out, or it can be a permanent junction between electrical equipment or wires. Existing controllers use a waterproof seal that plugs punctures, which has poor sealing stability. Utility Model Content
[0003] The purpose of this invention is to provide a waterproof plug for a controller with stable sealing performance.
[0004] The technical solution of this utility model is: a waterproof plug for controllers, used to fix terminals in a pin holder, with a waterproof plug at the bottom of the pin holder, including a plug body, a clip, a seal, and a waterproof plug sleeve; the waterproof plug sleeve is fitted around the lead wire of the terminal, and the seal is located between the plug body and the pin holder.
[0005] A further technical solution is provided in which the plug body is provided with a guide section, an installation section and a contact section from top to bottom. The guide section is used for inserting the waterproof plug sleeve. The outer wall of the guide section is provided with a clip plate for fixing with the needle seat hook. The installation section is provided with a sealing groove and a fixing groove from top to bottom. The sealing element is sleeved in the sealing groove and the outer wall of the sealing element is tightly attached to the inner wall of the needle seat. The clip is engaged in the fixing groove. A guide groove is provided on one side of the contact section.
[0006] A further technical solution involves a U-shaped card with multiple limiting blocks on the inner wall of the card to limit the terminals. The limiting blocks protrude inward, and the sidewalls of the limiting blocks at the ends of the card form abutment hooks.
[0007] A further technical solution is that the gap between one side of the fixed slot and the needle seat is greater than the thickness of the card, and an abutment groove is provided on the other side wall for inserting the abutment barb.
[0008] The beneficial effects of this utility model are:
[0009] 1. This utility model adds a sealing groove and a fixing groove to the side wall of the plug body. The sealing element is sleeved in the sealing groove and the fixing element is engaged in the fixing groove. After the terminal is inserted into the plug body, the fixing element is pushed until the abutting hook is inserted into the abutting groove to form a locking structure, which limits the terminal in the plug body. The position of the sealing structure is changed from the top to the side, thereby improving the overall sealing effect.
[0010] 2. In this utility model, a guide groove is provided on one side of the contact section of the plug body. The guide groove serves as a foolproof position, which can quickly identify whether it is inserted in reverse. When used to mate with the pin socket, the guide groove contacts the pin socket before the wiring terminal, which can prevent damage to the wiring terminal when the plug body is inserted into the pin socket in the wrong direction. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model.
[0012] Figure 2 for Figure 1 Structural breakdown diagram,
[0013] The components include: 1. Plug body, 11. Guide section, 12. Clamping plate, 13. Installation section, 14. Sealing groove, 15. Fixing groove, 16. Abutment groove, 17. Contact section, 18. Guide groove, 2. Clamping piece, 21. Limiting block, 22. Abutment barb, 3. Sealing piece, 4. Waterproof plug, 5. Terminal. Detailed Implementation
[0014] The present invention will be further illustrated and understood below through non-limiting embodiments.
[0015] like Figure 1-2 As shown, this utility model provides a waterproof plug for a controller with stable sealing effect, used to fix terminal 5 in the needle seat. The bottom of the needle seat is provided with a waterproof plug. The plug includes a plug body 1, a clip 2, a sealing element 3, and a waterproof plug 4. The waterproof plug 4 is sleeved on the outer ring of the lead wire of terminal 5, and the sealing element 3 is disposed between the plug body 1 and the needle seat.
[0016] The plug body 1 is provided with a guide section 11, an installation section 13, and a contact section 17 from top to bottom. The guide section 11 is used for inserting the waterproof plug 4. The outer wall of the guide section 11 is provided with a retaining plate 12 for fixing with the needle seat hook. The installation section 13 is provided with a sealing groove 14 and a fixing groove 15 from top to bottom. The sealing element 3 is sleeved in the sealing groove 14, and the outer wall of the sealing element 3 is tightly attached to the inner wall of the needle seat. The retaining element 2 is engaged in the fixing groove 15. A guide groove 18 is provided on one side of the contact section 17.
[0017] The clip 2 is U-shaped, and multiple limiting blocks 21 for limiting the terminals 5 are provided on the inner wall of the clip 2. The limiting blocks 21 protrude inward, and the side wall of the limiting block 21 at the end of the clip 2 forms an abutting hook 22. The gap between one side of the fixing groove 15 and the pin seat is greater than the thickness of the clip 2, and the other side wall is provided with an abutting groove 16 for the abutting hook 22 to be inserted.
[0018] During installation, first assemble the sealing element 3 onto the plug body 1, and then assemble the locking element 2 onto the plug body 1. At this time, the abutting hook 22 is not inserted into the abutting groove 16, only forming a pre-locking structure. Insert the terminal 5 with the waterproof plug 4 pressed in from the tail of the plug body 1. After insertion, push the locking element 2 until the abutting hook 22 is inserted into the abutting groove 16 to form a locking structure, thereby limiting the terminal 5 inside the plug body 1.
[0019] This invention is used to ensure that, when the connector body 1 is inserted into the pin socket, the guide groove 18 located on the contact section 17 contacts the pin socket before the terminal 5, thus preventing damage to the terminal 5 when the connector body 1 is inserted into the pin socket in the wrong direction. The guide groove 18 also serves as a foolproof position, allowing for quick identification of whether the connector is inserted incorrectly.
[0020] Compared to the existing technology where the sealing structure is located at the top of the connection, in this utility model, the sealing structure between the plug body 1 and the pin seat is located in the sealing groove 14 on the side of the plug body. That is, the position of the sealing structure is changed from the top to the side, and its sealing effect is more stable.
[0021] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A waterproof plug for a controller, used to fix terminals inside a pin holder, wherein a waterproof plug is provided at the bottom of the pin holder, characterized in that: The plug comprises a plug seat body, a clamping piece, a sealing piece and a waterproof plug sleeve; the waterproof plug sleeve is sleeved on the outer circle of the lead wire of the terminal, the sealing piece is arranged between the plug seat body and the needle seat, the plug seat body is sequentially provided with a guide section, a mounting section and a contact section from top to bottom, the mounting section is sequentially provided with a sealing groove and a fixed clamping groove from top to bottom, the sealing piece is sleeved in the sealing groove, the outer wall of the sealing piece is tightly combined on the inner wall of the needle seat, and the clamping piece is clamped in the fixed clamping groove.
2. The controller waterproof plug of claim 1, wherein: The guide section is used for placing the waterproof plug sleeve, and a clamping plate for fixing the needle seat is arranged on the outer wall of the guide section; one side of the contact section is provided with a guide groove.
3. The controller waterproof plug of claim 1, wherein: The clamping piece is arranged in a U shape, a plurality of limiting blocks for limiting the terminal are arranged on the inner wall of the clamping piece, the limiting blocks are arranged in a protruding manner inwardly, and the side wall of the limiting block of the end portion of the clamping piece forms an abutting hook.
4. The controller waterproof plug of claim 3, wherein: The gap between one side of the fixed clamping groove and the needle seat is greater than the thickness of the clamping piece, and the other side wall is provided with an abutting groove for placing the abutting hook.