Waterproof connecting wire plug-in locking structure and manufacturing method thereof

Abstract

The present invention discloses a waterproof connecting wire plug-in locking structure and a manufacturing method thereof. The waterproof connecting wire plug-in locking structure includes a male connecting wire and a female connecting wire; the male body has an insertion cavity, and the front end of the male body is provided with an introduction groove and a locking groove; the front end of the female body has a plug-in column that is plugged into and rotated with the insertion cavity, and the outer side surface of the plug-in column is convexly provided with a raised buckle point that cooperates with the introduction groove and the locking groove, and the raised buckle point slides into the locking groove along the introduction groove, and a waterproof ring is provided on the plug-in column outer cover. By providing a raised buckle point on the female connecting wire and providing a corresponding introduction groove and locking groove on the male connecting wire, the male body and the female body can be locked together after the plug-in connection to prevent loosening and falling off due to interference from external forces; at the same time, by forming a waterproof ring on the outer peripheral side of the female body and closely matching with the inner wall of the insertion cavity, the product has a waterproof function, and the waterproof level can reach IPX‑7, avoiding safety hazards.

Description

Technical Field

[0001] The invention relates to the technology of floor heating field, and in particular to a waterproof connecting wire plug-in locking structure and a manufacturing method thereof. Background Art

[0002] Floor heating is the abbreviation of floor radiation heating. It uses the entire floor as a radiator, and evenly heats the entire floor through the heat medium in the floor radiation layer. The floor heats the room by radiation and convection, achieving the purpose of comfortable heating. In floor heating equipment, connecting wires are required to connect various lines. The male and female heads of conventional floor heating connecting wires have no locking function after being plugged in and connected. They are easily loosened and fall off due to external forces, affecting their use. In addition, conventional floor heating connecting wires have no waterproof function, and are prone to short circuits due to water leakage, posing a safety hazard. Therefore, it is necessary to design a new solution to solve the above problems. Summary of the invention

[0003] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a waterproof connecting wire plug-in locking structure and a manufacturing method thereof, which can effectively solve the problems that the existing floor heating connecting wires have no plug-in locking function and are easy to loosen, and have no waterproof function and pose a safety hazard.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A waterproof connecting wire plug-in locking structure, comprising a male connecting wire and a female connecting wire;

[0006] The male connecting line includes a male connector, a male wire and a male wire outer mold; the male connector includes a male body and a male terminal, the front end of the male body has an insertion cavity with an opening facing forward, and the front end side of the male body is provided with an introduction groove and a locking groove, the introduction groove and the locking groove are both connected to the insertion cavity, the introduction groove penetrates to the front end surface of the male body and extends parallel to the axial direction of the insertion cavity, the locking groove is located at the rear side of the introduction groove and is connected to the introduction groove, and the locking groove extends around the axial direction of the insertion cavity; the male terminal is fixed in the male body, the front end of the male terminal has a male contact portion, and the male contact portion is located at the center of the insertion cavity; the male wire is welded and connected to the rear end of the male terminal; the male wire outer mold is inlaid and fixed with the rear end of the male connector and the front end of the male wire;

[0007] The female connecting line includes a female connector, a female wire and a female wire outer mold; the female connector includes a female body and a female terminal, the front end of the female body has a plug-in column that is plugged into and rotatably matched with the insertion cavity, the plug-in column has a receiving hole that opens forward, the outer side surface of the plug-in column is convexly provided with a protruding buckle point that matches with the introduction groove and the locking groove, the protruding buckle point slides into the locking groove along the introduction groove, and the outer peripheral side surface of the plug-in column is sleeved with a waterproof ring, the waterproof ring is located on the front side of the protruding buckle point, and the waterproof ring is tightly matched with the inner wall of the insertion cavity; the female terminal is fixed in the female body, the front end of the female terminal has a female contact part, the female contact part is located in the receiving hole and is plugged and connected with the male contact part; the female wire is welded and connected with the rear end of the female terminal; the female wire outer mold is inlaid and fixed with the rear end of the female connector and the front end of the female wire.

[0008] As a preferred solution, the male body is cylindrical, and the male wire outer mold is also cylindrical; the female body is cylindrical, and the female wire outer mold is also cylindrical; the opening edge of the insertion cavity is formed with a chamfered structure.

[0009] As a preferred solution, a stop convex point is convexly provided on the inner wall of the locking groove near the rear end side of the introduction groove, and the stop convex point is locked with the raised buckle point to limit the position.

[0010] As a preferred solution, the waterproof ring adopts a double-peak structure and is made of silicone material.

[0011] As a preferred solution, an annular groove is concavely formed on the peripheral side surface of the plug-in column, and the waterproof ring is directly formed and fixed in the annular groove and protrudes out of the annular groove.

[0012] As a preferred embodiment, the rear end of the male body is provided with a first annular groove and a first notch, and the first annular groove and the first notch are both buried in the outer mold of the male wire; the rear end of the female body is provided with a second annular groove and a second notch, and the second annular groove and the second notch are both buried in the outer mold of the female wire.

[0013] As a preferred embodiment, the rear end of the male terminal has a first notch groove, and the front end conductor of the male wire is embedded in the first notch groove and fixed by soldering; the rear end of the female terminal has a second notch groove, and the front end conductor of the female wire is embedded in the second notch groove and fixed by soldering.

[0014] As a preferred solution, the male body and the male terminal are fixed together by insert molding, and the female body and the female terminal are fixed together by insert molding.

[0015] As a preferred embodiment, the male body, male wire outer mold, female body and female wire outer mold are made of the same material, the outer surface of the male wire outer mold is convexly provided with a first anti-slip pattern, and the outer surface of the female wire outer mold is convexly provided with a second anti-slip pattern.

[0016] A method for manufacturing a waterproof connecting wire plug-in locking structure comprises the following steps:

[0017] (1) The male terminal is fixed on the male body to form a male connector, and the female terminal is fixed on the female body to form a female connector;

[0018] (2) Take the male and female wires, and peel the front ends of the male and female wires to expose the front conductors;

[0019] (3) The front end conductors of the male wire and the female wire are respectively welded and fixed to the rear ends of the male terminal and the female terminal and are conductively connected;

[0020] (4) placing the connected male wire and male connector into one injection mold to form a male wire outer mold, and placing the connected female wire and female connector into another injection mold to form a female wire outer mold;

[0021] (5) Insert the male connector and the female connector together and rotate them to lock them.

[0022] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0023] By providing a raised buckle point on the female connecting line and corresponding guide grooves and locking grooves on the male connecting line, the male body and the female body can be locked together after plugging and connecting to prevent loosening and falling off due to external interference; at the same time, by integrally forming a waterproof ring on the outer peripheral side of the female body and closely matching with the inner wall of the insertion cavity, the product has a waterproof function with a waterproof grade of up to IPX-7 to avoid safety hazards; and a male wire outer mold is injection molded at the connection between the male terminal and the male wire, and a female seat wire outer mold is injection molded at the connection between the female terminal and the female wire, so that the product has a better waterproof effect.

[0024] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention in an unlocked state of insertion;

[0026] Figure 2 It is a schematic diagram of the plug-in locking state of a preferred embodiment of the present invention;

[0027] Figure 3 It is a cross-sectional view of the plug-in locking state of a preferred embodiment of the present invention;

[0028] Figure 4 is a schematic diagram of a male connector according to a preferred embodiment of the present invention;

[0029] Figure 5 It is a schematic diagram of welding a male connector and a male wire according to a preferred embodiment of the present invention;

[0030] Figure 6 It is a schematic diagram of the assembly of the male connector and the male wire outer mold of the preferred embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the male connector cable assembly completion state of a preferred embodiment of the present invention;

[0032] Figure 8 is a schematic diagram of a female connector according to a preferred embodiment of the present invention;

[0033] Fig. 9 It is a schematic diagram of welding a female connector and a female wire according to a preferred embodiment of the present invention;

[0034] Fig.10 It is a schematic diagram of the assembly of the female connector and the female wire outer mold of a preferred embodiment of the present invention;

[0035] Fig.11 It is a schematic diagram of the female connector cable assembly completion state of a preferred embodiment of the present invention.

[0036] Description of the accompanying drawings:

[0037] 10. Male connector 101. Insertion cavity

[0038] 102. Import slot 103. Locking slot

[0039] 104, first notch groove 105, first annular groove

[0040] 106, first notch 107, stop convex point

[0041] 108. Chamfer structure 11. Male connector

[0042] 111. Male body 112. Male terminal

[0043] 1121, male contact part 12, male wire

[0044] 13. Male cable outer mold 131. First anti-slip pattern

[0045] 20. Female connector cable 201. Connector column

[0046] 202, receiving hole 203, raised buckle point

[0047] 204, annular groove 205, second notch groove

[0048] 206, second annular groove 207, second notch

[0049] 21. Female connector 211. Female body

[0050] 212, female terminal 2121, female contact part

[0051] 22. Female wire 23. Female wire outer mold

[0052] 231. Second anti-slip pattern 24. Waterproof ring. DETAILED DESCRIPTION

[0053] Please refer to Figures 1 to 11 As shown, it shows the specific structure of a preferred embodiment of the waterproof connecting wire plug-in locking structure of the present invention, including a male connecting wire 10 and a female connecting wire 20.

[0054] The male connecting cable 10 includes a male connector 11 , a male wire 12 , and a male wire outer mold 13 .

[0055] The male connector 11 includes a male body 111 and a male terminal 112; the male body is a cylindrical body 111, and the front end of the male body 111 has an insertion cavity 101 with an opening facing forward, and the opening edge of the insertion cavity 101 is formed with a chamfered structure 108 to prevent damage to the waterproof ring 24 during insertion, and the front side of the male body 111 is provided with an introduction groove 102 and a locking groove 103, and the introduction groove 102 and the locking groove 103 are both connected to the insertion cavity 101, and the introduction groove 102 penetrates the insertion cavity 101. It passes through the front end face of the male body 111 and extends parallel to the axial direction of the insertion cavity 101. The locking groove 103 is located on the rear side of the introduction groove 102 and connected to the introduction groove 102. The locking groove 103 extends around the axial direction of the insertion cavity 101. The male terminal 112 is fixed in the male body 111. The male body 111 and the male terminal 112 are inlay-molded and fixed together. The front end of the male terminal 112 has a male contact portion 1121, and the male contact portion 1121 is located at the center of the insertion cavity 101.

[0056] The male wire 12 is welded to the rear end of the male terminal 112; the rear end of the male terminal 112 has a first notch groove 104, and the front end conductor of the male wire 12 is embedded in the first notch groove 104 and fixed by soldering, making welding more convenient and the connection strength higher.

[0057] The male wire outer mold 13 is cylindrical, and the outer surface of the male wire outer mold 13 is convexly provided with a first anti-slip pattern 131; the male wire outer mold 13 is inlaid and fixed with the rear end of the male connector 11 and the front end of the male wire 12; the rear end of the aforementioned male body 111 is provided with a first annular groove 105 and a first notch 106, and the first annular groove 105 and the first notch 106 are both buried in the male wire outer mold 13, so that the connection between the male wire outer mold 13 and the male body 111 is more stable and prevents the male wire outer mold 13 and the male body 111 from rotating relative to each other.

[0058] The female connecting cable 20 includes a female connector 21 , a female wire 22 , and a female wire outer mold 23 .

[0059] The female connector 21 includes a female body 211 and a female terminal 212; the female body 211 is cylindrical, and the front end of the female body 211 has a plug-in column 201 that is plugged into and rotated with the insertion cavity 101, and the plug-in column 201 has a receiving hole 202 with an opening facing forward, and the outer side surface of the plug-in column 201 is convexly provided with a protruding buckle point 203 that cooperates with the introduction groove 102 and the locking groove 103, and the protruding buckle point 203 slides into the locking groove 103 along the introduction groove 102; the inner wall of the aforementioned locking groove 103 is convexly provided with a stop convex point near the rear end side of the introduction groove 102 107, the stop protrusion 107 is locked with the protruding buckle point 203 for limiting; and a waterproof ring 24 is sleeved on the outer peripheral side of the plug-in column 201, and the waterproof ring 24 is located on the front side of the protruding buckle point 203, and the waterproof ring 24 is tightly matched with the inner wall of the insertion cavity 101; the female terminal 212 is fixed in the female body 211, and the female body 211 and the female terminal 212 are inlaid and fixed together; the front end of the female terminal 212 has a female contact portion 2121, and the female contact portion 2121 is located in the accommodating hole 202 and is plugged and connected with the male contact portion 1121. In this embodiment, the peripheral side surface of the plug-in column 201 is concavely provided with an annular groove 204, and the waterproof ring 24 is directly formed and fixed in the annular groove 204 and protrudes out of the annular groove 204, so as to be better tightly connected with the plug-in column 201 to avoid falling off; the waterproof ring 24 adopts a double-peak structure, and the waterproof ring 24 is made of silicone, so that the waterproof ring 24 is in closer contact with the inner wall of the insertion cavity 101, thereby achieving a better waterproof effect.

[0060] The female wire 22 is welded to the rear end of the female terminal 212; the rear end of the female terminal 212 has a second notch groove 205, and the front end conductor of the female wire 22 is embedded in the second notch groove 205 and fixed by soldering, making welding more convenient and the connection strength higher.

[0061] The female wire outer mold 23 is cylindrical, and the outer surface of the female wire outer mold 23 is convexly provided with a second anti-slip pattern 231; the female wire outer mold 23 is inlaid and fixed with the rear end of the female connector 21 and the front end of the female wire 22; the rear end of the female body 211 is provided with a second annular groove 206 and a second notch 207, and the second annular groove 206 and the second notch 207 are both buried in the female wire outer mold 23, so that the connection between the female wire outer mold 23 and the female body 211 is more stable and prevents the female wire outer mold 23 and the female body 211 from rotating relative to each other.

[0062] Among them, the male body 111, the male wire outer mold 13, the female body 211 and the female wire outer mold 23 are made of the same material, so that the connection between the male body 111 and the male wire outer mold 13 is tighter, and the connection between the female body 211 and the female wire outer mold is tighter, achieving a better waterproof effect.

[0063] The present invention also discloses a method for manufacturing a waterproof connecting wire plug-in locking structure, comprising the following steps:

[0064] (1) The male terminal 112 is fixed to the male body 111 to form the male connector 11 , and the female terminal 212 is fixed to the female body 211 to form the female connector 21 .

[0065] (2) Take the male wire 12 and the female wire 22, and peel the front ends of the male wire 12 and the female wire 22 to expose the front end conductors.

[0066] (3) The front end conductors of the male wire 12 and the female wire 22 are respectively welded and fixed to the rear ends of the male terminal 112 and the female terminal 212 to form a conductive connection.

[0067] (4) The connected male wire 12 and male connector 11 are placed in an injection mold to form a male wire outer mold 13, and the connected female wire 22 and female connector 21 are placed in another injection mold to form a female wire outer mold 23.

[0068] (5) Insert the male connector 11 and the female connector 21 together and rotate them to lock them. Specifically, align the raised buckle point 203 on the female body 211 with the guide groove 102 on the male body 111, and insert the male connecting wire 10 and the female connecting wire 20 together so that the raised buckle point 203 enters the guide groove 103; after being inserted into place, the male contact part 1121 of the male terminal 112 is connected with the female contact part 2121 of the female terminal 212, and then rotate the male body 111 / female body 211 so that the raised buckle point 203 enters the locking groove 103, and the stop convex point 107 abuts against the raised buckle point 203 to complete the locking.

[0069] When unlocking, the male body 111 / female body 211 is rotated in the opposite direction to make the raised buckle point 203 leave the locking groove 103, and then the male body 111 and the female body 211 are pulled apart to both ends to make the raised buckle point 203 leave the guide groove 102 to release the lock.

[0070] The design emphasis of the present invention is:

[0071] By providing a raised buckle point on the female connecting line and corresponding guide grooves and locking grooves on the male connecting line, the male body and the female body can be locked together after plugging and connecting to prevent loosening and falling off due to external interference; at the same time, by integrally forming a waterproof ring on the outer peripheral side of the female body and closely matching with the inner wall of the insertion cavity, the product has a waterproof function with a waterproof grade of up to IPX-7 to avoid safety hazards; and a male wire outer mold is injection molded at the connection between the male terminal and the male wire, and a female seat wire outer mold is injection molded at the connection between the female terminal and the female wire, so that the product has a better waterproof effect.

[0072] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A waterproof connecting wire plug-in locking structure, characterized in that: Including male and female connecting wires; The male connecting line includes a male connector, a male wire and a male wire outer mold; the male connector includes a male body and a male terminal, the front end of the male body has an insertion cavity with an opening facing forward, and the front end side of the male body is provided with an introduction groove and a locking groove, the introduction groove and the locking groove are both connected to the insertion cavity, the introduction groove penetrates to the front end surface of the male body and extends parallel to the axial direction of the insertion cavity, the locking groove is located at the rear side of the introduction groove and is connected to the introduction groove, and the locking groove extends around the axial direction of the insertion cavity; the male terminal is fixed in the male body, the front end of the male terminal has a male contact portion, and the male contact portion is located at the center of the insertion cavity; the male wire is welded and connected to the rear end of the male terminal; the male wire outer mold is inlaid and fixed with the rear end of the male connector and the front end of the male wire; The female connecting line includes a female connector, a female wire and a female wire outer mold; the female connector includes a female body and a female terminal, the front end of the female body has a plug-in column that is plugged into and rotatably matched with the insertion cavity, the plug-in column has a receiving hole with an opening facing forward, the outer side surface of the plug-in column is convexly provided with a raised buckle point that matches the introduction groove and the locking groove, the raised buckle point slides into the locking groove along the introduction groove, and the outer peripheral side surface of the plug-in column is sleeved with a waterproof ring, the waterproof ring is located in front of the raised buckle point, and the waterproof ring is tightly attached to the inner wall of the insertion cavity. Matching; the female terminal is fixed in the female body, and the front end of the female terminal has a female contact part, which is located in the accommodating hole and plugged with the male contact part; the female wire is welded and connected with the rear end of the female terminal; the female wire outer mold is inlaid and fixed with the rear end of the female connector and the front end of the female wire; the inner wall of the locking groove is convexly provided with a stop convex point on the side near the rear end of the introduction groove, and the stop convex point is buckled with the convex buckle point to limit the position; the waterproof ring adopts a double wave peak structure, and the waterproof ring is made of silicone material.

2. The waterproof connecting wire plug-in locking structure according to claim 1, characterized in that: The male body is cylindrical, and the male wire outer mold is also cylindrical; the female body is cylindrical, and the female wire outer mold is also cylindrical; the opening edge of the insertion cavity is formed with a chamfered structure.

3. The waterproof connecting wire plug-in locking structure according to claim 1, characterized in that: An annular groove is concavely formed on the peripheral side surface of the plug-in column, and the waterproof ring is directly formed and fixed in the annular groove and protrudes out of the annular groove.

4. The waterproof connecting wire plug-in locking structure according to claim 1, characterized in that: The rear end of the male body is provided with a first annular groove and a first notch, and the first annular groove and the first notch are both buried in the male wire outer mold; the rear end of the female body is provided with a second annular groove and a second notch, and the second annular groove and the second notch are both buried in the female wire outer mold.

5. The waterproof connecting wire plug-in locking structure according to claim 1, characterized in that: The rear end of the male terminal has a first notch groove, and the front end conductor of the male wire is embedded in the first notch groove and fixed by soldering; the rear end of the female terminal has a second notch groove, and the front end conductor of the female wire is embedded in the second notch groove and fixed by soldering.

6. The waterproof connecting wire plug-in locking structure according to claim 1, characterized in that: The male body and the male terminal are fixed together by insert molding, and the female body and the female terminal are fixed together by insert molding.

7. The waterproof connecting wire plug-in locking structure according to claim 1, characterized in that: The male body, male wire outer mold, female body and female wire outer mold are made of the same material. The outer surface of the male wire outer mold is convexly provided with a first anti-slip pattern, and the outer surface of the female wire outer mold is convexly provided with a second anti-slip pattern.

8. A method for manufacturing the waterproof connecting wire pair locking structure according to any one of claims 1 to 7, characterized in that: The following steps are included: (1) fixing the male terminal to the male body to form a male connector, and fixing the female terminal to the female body to form a female connector; (2) Take the male wire and the female wire, and peel the front ends of the male wire and the female wire to expose the front conductor; (3) The front end conductors of the male wire and the female wire are respectively welded and fixed to the rear end of the male terminal and the rear end of the female terminal and are conductively connected; (4) placing the connected male wire and male connector into an injection mold to form a male wire outer mold, and placing the connected female wire and female connector into another injection mold to form a female wire outer mold; (5) Insert the male connector and the female connector together and rotate them to lock them.

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