Quick connection type connection cable

Abstract

The utility model provides a quick-connection type connecting cable. The quick-connection type connecting cable comprises a cable body and a connector, and the cable body is electrically connected with a connecting terminal arranged in the connector. The quick-connection type connecting cable further comprises a screw joint, a plug insulating rubber shell and a sealing assembly. The screw joint is movably sleeved on the cable body, and the screw joint is provided with an internal threaded hole. The plug insulating rubber shell wraps the joint of the connector and the cable body, an external thread part is formed at the end, close to the screw joint, of the plug insulating rubber shell, and the screw joint is located at the external thread part and is in screw joint with the plug insulating rubber shell. The sealing assembly comprises an elastic sealing ring and a clamping jaw ring, the elastic sealing ring is located in the inner threaded hole of the threaded connector and movably arranged on the cable body in a sleeving mode, the clamping jaw ring movably sleeves the elastic sealing ring, and the clamping end of the clamping jaw ring movably abuts against the outer wall of the elastic sealing ring and the outer wall of the cable body.

Description

Technical Field

[0001] The present disclosure relates to the technical field of wiring cables, and in particular to a quick-connect cable. Background Art

[0002] The micro-inverter connecting cable is mainly an electrical connecting line that transmits the AC power output by the micro-inverter to the mains. For example, Chinese patent document CN106099588 A discloses a solar male connector connecting line, including a solar photovoltaic cable, a heat shrink tube, a cable terminal and a male connector, wherein the heat shrink tube is installed at one end of the solar photovoltaic cable, the heat shrink tube is connected to the cable terminal, and the male connector is connected to the other end of the solar photovoltaic cable where the heat shrink tube is installed. The male connector can be divided into a first male connector and a second male connector, wherein the front section of the first male connector is provided with a clamping tooth for clamping with the female connector, the rear section of the first male connector is provided with an external thread, and the front section of the second male connector is provided with an internal thread used in conjunction with the external thread.

[0003] However, the above-mentioned solar male connector cable still has the following problems: there is a large fitting gap between the second male connector sleeve and the solar photovoltaic cable, which easily causes water vapor to penetrate from the fitting gap into the connector connection, thereby greatly reducing the overall sealing effect of the connector cable, and further causing a safety hazard of leakage and electric shock. Utility Model Content

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a quick-connect cable with better sealing performance.

[0005] The purpose of this disclosure is achieved through the following technical solutions:

[0006] A quick-connect cable includes a cable body and a connector, wherein the cable body is electrically connected to a connection terminal disposed in the connector. The quick-connect cable also includes:

[0007] A screw joint, which is movably sleeved on the cable body and has an internal threaded hole;

[0008] A plug insulating rubber shell, the plug insulating rubber shell covers the connection between the connector and the cable body, the end of the plug insulating rubber shell adjacent to the screw joint is formed with an external threaded portion, the screw joint is located at the external threaded portion and is screwed to the plug insulating rubber shell;

[0009] A sealing assembly, the sealing assembly comprising an elastic sealing ring and a claw ring, the elastic sealing ring is located in the internal threaded hole of the screw joint and is movably sleeved on the cable body, the claw ring is movably sleeved on the elastic sealing ring, and the clamping ends of the claw ring are movably abutted against the outer wall of the elastic sealing ring and the outer wall of the cable body respectively.

[0010] In one embodiment, the elastic sealing ring includes an integrally formed sealing ring big end and a sealing ring small end, the sealing ring big end abuts against the inner wall of the plug insulating rubber shell adjacent to the external threaded portion, and the sealing ring small end is arranged toward the internal threaded hole of the screw joint.

[0011] In one of the embodiments, the claw ring is formed with a plurality of claw branches and a fixing portion, the plurality of claw branches are arranged around one end surface of the fixing portion, and the other end surface of the fixing portion abuts against the large end of the sealing ring.

[0012] In one of the embodiments, the connector is snap-connected to the end of the plug insulating plastic shell facing away from the external threaded portion.

[0013] In one embodiment, a waterproof boss is provided on the connector away from the external threaded portion, and a sealing ring groove is provided on the waterproof boss;

[0014] The quick-connect cable also includes a waterproof rubber ring, which is located in the sealing ring groove and sleeved with the waterproof boss. The plug-in end of the connector is exposed at the waterproof boss away from the external threaded portion.

[0015] In one embodiment, the waterproof boss includes an integrally formed boss big end and boss small end, the sealing ring groove is arranged around the outer circumference of the boss big end, and the plug-in end of the connector is exposed on the end face of the boss small end facing away from the boss big end.

[0016] In one of the embodiments, a hook piece is formed on the connector portion facing away from the external thread portion, and the hook piece is disposed adjacent to the waterproof boss.

[0017] In one embodiment, there are two hook members, and the two hook members are symmetrically arranged on both sides of the waterproof boss.

[0018] In one embodiment, the outer peripheral wall of the screw joint is formed with a rotation grip portion;

[0019] The outer peripheral wall of the plug insulating plastic shell is formed with a first anti-slip gripping portion and a second anti-slip gripping portion, and the first anti-slip gripping portion and the second anti-slip gripping portion are symmetrically arranged.

[0020] Compared with the prior art, the present invention has at least the following advantages:

[0021] By adding an elastic sealing ring to the internal thread hole of the screw joint, and making the elastic sealing ring movably sleeved on the cable body, and then by movably sleeved on the elastic sealing ring, when the screw joint is screwed and tightened step by step through the internal thread hole and the external thread of the plug insulating rubber shell, the plug insulating rubber shell in the tightening area will be contracted and squeezed, thereby forcing the clamping end of the clamping claw ring to abut against the outer wall of the elastic sealing ring and the outer wall of the cable body respectively. That is, the elastic sealing ring is contracted and clamped by the clamping end of the clamping claw ring so that it fits tightly with the outer wall of the cable body, effectively preventing water vapor from penetrating into the electrical connection between the connector and the cable body from the gap where the screw joint is movably sleeved on the cable body, thereby causing a safety hazard of electric shock caused by leakage, so that the sealing performance of the quick-connect cable can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A physical picture of a quick-connect cable according to an embodiment;

[0024] Figure 2 It is a structural schematic diagram of a quick-connect cable according to another embodiment;

[0025] Figure 3 for Figure 2 Schematic diagram of the structure of the quick-connect cable. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] The present disclosure provides a quick-connect cable, comprising a cable body and a connector, wherein the cable body is electrically connected to a connection terminal provided in the connector. The quick-connect cable further comprises:

[0030] A screw joint, which is movably sleeved on the cable body and has an internal threaded hole;

[0031] A plug insulating rubber shell, the plug insulating rubber shell covers the connection between the connector and the cable body, the end of the plug insulating rubber shell adjacent to the screw joint is formed with an external threaded portion, the screw joint is located at the external threaded portion and is screwed to the plug insulating rubber shell;

[0032] A sealing assembly, the sealing assembly comprising an elastic sealing ring and a claw ring, the elastic sealing ring is located in the internal threaded hole of the screw joint and is movably sleeved on the cable body, the claw ring is movably sleeved on the elastic sealing ring, and the clamping ends of the claw ring are movably abutted against the outer wall of the elastic sealing ring and the outer wall of the cable body respectively.

[0033] See also Figures 1 to 3 In order to better understand the quick-connect cable 10 of the present disclosure, the quick-connect cable 10 is further explained below:

[0034] A quick-connect cable 10 of one embodiment includes a cable body 100 and a connector 200, wherein the cable body 100 is electrically connected to a connection terminal 210 provided in the connector 200. The quick-connect cable 10 also includes a screw joint 300, a plug insulating rubber shell 400, and a sealing assembly 500. The screw joint 300 is movably sleeved on the cable body 100, and the screw joint 300 is provided with an internal threaded hole 301. The plug insulating rubber shell 400 is covered at the connection between the connector 200 and the cable body 100, and an external threaded portion 410 is formed at the end of the plug insulating rubber shell 400 adjacent to the screw joint 300, and the screw joint 300 is located at the external threaded portion 410 and is screwed to the plug insulating rubber shell 400. The sealing assembly 500 includes an elastic sealing ring 510 and a claw ring 520. The elastic sealing ring 510 is located in the internal threaded hole 301 of the screw joint 300 and is movably mounted on the cable body 100. The claw ring 520 is movably mounted on the elastic sealing ring 510. The clamping ends of the claw ring 520 are movably abutted against the outer wall of the elastic sealing ring 510 and the outer wall of the cable body 100, respectively.

[0035] In this embodiment, by adding an elastic sealing ring 510 to the internal thread hole 301 of the screw joint 300, and making the elastic sealing ring 510 movably sleeved on the cable body 100, and then by movably sleeved on the elastic sealing ring 510, when the screw joint 300 is screwed and tightened step by step with the external thread of the plug insulating rubber shell 400 through the internal thread hole 301, the plug insulating rubber shell 400 in the tightening area will be contracted and squeezed, thereby forcing the clamping end of the clamping claw ring 520 to respectively abut against the outer wall of the elastic sealing ring 510 and the outer wall of the cable body 100. That is, the elastic sealing ring 510 is contracted and clamped by the clamping end of the clamping claw ring 520 so that it is tightly fitted with the outer wall of the cable body 100, effectively preventing water vapor from penetrating into the electrical connection between the connector 200 and the cable body 100 from the gap where the screw joint 300 is movably sleeved on the cable body 100, thereby causing a safety hazard of electric shock due to leakage, so that the sealing performance of the quick-connect cable 10 can be effectively improved.

[0036] like Figure 2 and Figure 3As shown, in one embodiment, the elastic sealing ring 510 includes an integrally formed sealing ring large end 5110 and a sealing ring small end 5120, the sealing ring large end 5110 abuts against the inner wall of the plug insulating rubber shell 400 adjacent to the external threaded portion 410, and the sealing ring small end 5120 is disposed toward the internal threaded hole 301 of the screw joint 300. In one embodiment, the claw ring 520 is formed with a plurality of claw branches 5210 and a fixing portion 5220, the plurality of claw branches 5210 are disposed around one end surface of the fixing portion 5220, and the other end surface of the fixing portion 5220 abuts against the sealing ring large end 5110.

[0037] It is understandable that, by tightening the internal thread hole 301 of the screw joint 300 and the external thread of the plug insulating rubber shell 400, the plug insulating rubber shell 400 in the tightening area will be squeezed and compressed, thereby forcing the large end 5110 of the sealing ring to form a force to gather and tighten toward the cable body 100, so that the large end 5110 of the sealing ring is tightly fitted with the outer wall of the cable body 100. Among them, the small end 5120 of the sealing ring is arranged toward the internal thread hole 301 of the screw joint 300, so that the clamping ends of the multiple claw branches 5210 simultaneously abut against the outer wall of the small end 5120 of the sealing ring and the outer wall of the cable body 100, so that the small end 5120 of the sealing ring forms a force to gather and tighten toward the cable body 100, so that the small end 5120 of the sealing ring is tightly fitted with the outer wall of the cable body 100.

[0038] like Figure 2 and Figure 3 As shown, in one embodiment, the connector 200 is snap-connected with the end of the plug insulating plastic shell 400 away from the external threaded portion 410. It can be understood that since the connector 200 is snap-connected with the end of the plug insulating plastic shell 400 away from the external threaded portion 410, the convenience of disassembly and assembly of the connector 200 and the plug insulating plastic shell 400 can be effectively improved.

[0039] like Figure 2 and Figure 3As shown, in one embodiment, the connector 200 is provided with a waterproof boss 220 away from the external threaded portion 410, and the waterproof boss 220 is provided with a sealing ring groove 2201. The quick-connect type connection cable 10 also includes a waterproof rubber ring 600, which is located in the sealing ring groove 2201 and sleeved with the waterproof boss 220. The plug-in end of the connector 200 is exposed at the waterproof boss 220 away from the external threaded portion 410. It can be understood that by providing a sealing ring groove 2201 on the waterproof boss 220 and then sleeved with the waterproof rubber ring 600 in the sealing ring groove 2201, when the plug-in end of the connector 200 is plugged into the connection port of the micro inverter, the waterproof rubber ring 600 can effectively ensure the sealing effect of the plug-in end and the connection port.

[0040] like Figure 2 and Figure 3 As shown, in one embodiment, the waterproof boss 220 includes an integrally formed boss big end 2210 and a boss small end 2220, the sealing ring groove 2201 is arranged around the outer periphery of the boss big end 2210, and the plug-in end of the connector 200 is exposed at the end face of the boss small end 2220 away from the boss big end 2210. It can be understood that the integrally formed boss big end 2210 and the boss small end 2220 have good structural connection strength, and the sealing ring groove 2201 is arranged around the outer periphery of the boss big end 2210, and the waterproof rubber ring 600 is sleeved in the sealing ring groove 2201, so that when the plug-in end of the connector 200 is plugged into the connection port of the micro inverter, the waterproof rubber ring 600 can effectively ensure the sealing effect of the plug-in end and the connection port.

[0041] like Figure 2 and Figure 3 As shown, in one embodiment, the connector 200 is further formed with a hook member 230 on the side away from the external threaded portion 410, and the hook member 230 is disposed adjacent to the waterproof boss 220. In one embodiment, the number of the hook members 230 is two, and the two hook members 230 are symmetrically disposed on both sides of the waterproof boss 220. It can be understood that when the plug-in end of the connector 200 is plugged into the connection port of the micro-inverter, a stable and reliable snap connection can be formed with the connection port of the micro-inverter through the two hook members 230, so that the plug-in end of the connector 200 and the connection port of the micro-inverter are more stably and firmly connected.

[0042] like Figure 2 and Figure 3As shown, in one embodiment, the outer peripheral wall of the screw joint 300 is formed with a rotating gripping portion 310, and the outer peripheral wall of the plug insulating rubber shell 400 is formed with a first anti-slip gripping portion 420 and a second anti-slip gripping portion 430, and the first anti-slip gripping portion 420 and the second anti-slip gripping portion 430 are symmetrically arranged. It can be understood that the arrangement of the rotating gripping portion 310 facilitates the user to apply force to screw and tighten the internal threaded hole 301 of the screw joint 300 and the external threaded portion 410 of the plug insulating rubber shell 400, thereby effectively ensuring that the plug insulating rubber shell 400 in the tightening area will be contracted and squeezed, thereby forcing the clamping end of the claw ring 520 to abut against the outer wall of the elastic sealing ring 510 and the outer wall of the cable body 100 respectively. That is, the elastic sealing ring 510 is contracted and clamped by the clamping end of the claw ring 520 so that it fits tightly with the outer wall of the cable body 100, effectively preventing water vapor from penetrating into the electrical connection between the connector 200 and the cable body 100 from the gap between the screw joint 300 and the cable body 100, thereby causing a safety hazard of electric shock caused by leakage, thereby effectively improving the sealing of the quick-connect cable 10. The first anti-slip gripping portion 420 and the second anti-slip gripping portion 430 are symmetrically arranged, which makes it easier for the user to apply force to plug the plug end of the connector 200 into the connection port of the micro inverter.

[0043] Compared with the prior art, the present invention has at least the following advantages:

[0044] By adding an elastic sealing ring to the internal thread hole of the screw joint, and making the elastic sealing ring movably sleeved on the cable body, and then by movably sleeved on the elastic sealing ring, when the screw joint is screwed and tightened step by step through the internal thread hole and the external thread of the plug insulating rubber shell, the plug insulating rubber shell in the tightening area will be contracted and squeezed, thereby forcing the clamping end of the clamping claw ring to abut against the outer wall of the elastic sealing ring and the outer wall of the cable body respectively. That is, the elastic sealing ring is contracted and clamped by the clamping end of the clamping claw ring so that it fits tightly with the outer wall of the cable body, effectively preventing water vapor from penetrating into the electrical connection between the connector and the cable body from the gap where the screw joint is movably sleeved on the cable body, thereby causing a safety hazard of electric shock caused by leakage, so that the sealing performance of the quick-connect cable can be effectively improved.

[0045] The above-described embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the disclosed patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the disclosed patent shall be subject to the attached claims.

Claims

1. A quick-connect cable, comprising a cable body and a connector, wherein the cable body is electrically connected to a connection terminal provided in the connector, characterized in that: The quick-connect cable also includes: A screw joint, which is movably sleeved on the cable body and has an internal threaded hole; A plug insulating rubber shell, the plug insulating rubber shell covers the connection between the connector and the cable body, the end of the plug insulating rubber shell adjacent to the screw joint is formed with an external threaded portion, the screw joint is located at the external threaded portion and is screwed to the plug insulating rubber shell; A sealing assembly, the sealing assembly comprising an elastic sealing ring and a claw ring, the elastic sealing ring is located in the internal threaded hole of the screw joint and is movably sleeved on the cable body, the claw ring is movably sleeved on the elastic sealing ring, and the clamping ends of the claw ring are movably abutted against the outer wall of the elastic sealing ring and the outer wall of the cable body respectively.

2. The quick-connect cable according to claim 1, characterized in that: The elastic sealing ring includes an integrally formed sealing ring big end and a sealing ring small end, the sealing ring big end abuts against the inner wall of the plug insulating rubber shell adjacent to the external threaded portion, and the sealing ring small end is arranged toward the internal threaded hole of the screw joint.

3. The quick-connect cable according to claim 2, characterized in that: The claw ring is formed with a plurality of claw branches and a fixing portion. The plurality of claw branches are arranged around one end surface of the fixing portion, and the other end surface of the fixing portion abuts against the large end of the sealing ring.

4. The quick-connect cable according to claim 1, characterized in that: The connector is snap-connected to the end of the plug insulating plastic shell away from the external threaded portion.

5. The quick-connect cable according to claim 1, characterized in that: The connector is provided with a waterproof boss away from the external threaded portion, and the waterproof boss is provided with a sealing ring groove; The quick-connect cable also includes a waterproof rubber ring, which is located in the sealing ring groove and sleeved with the waterproof boss. The plug-in end of the connector is exposed at the waterproof boss away from the external threaded portion.

6. The quick-connect cable according to claim 5, characterized in that: The waterproof boss includes an integrally formed boss big end and boss small end, the sealing ring groove is arranged around the outer circumference of the boss big end, and the plug-in end of the connector is exposed on the end face of the boss small end away from the boss big end.

7. The quick-connect cable according to claim 6, characterized in that: The connector is further formed with a hook piece on the portion facing away from the external thread, and the hook piece is arranged adjacent to the waterproof boss.

8. The quick-connect cable according to claim 7, characterized in that: The number of the hook members is two, and the two hook members are symmetrically arranged on both sides of the waterproof boss.

9. The quick-connect cable according to claim 1, characterized in that: The outer peripheral wall of the screw joint is formed with a rotation gripping portion; The outer peripheral wall of the plug insulating plastic shell is formed with a first anti-slip gripping portion and a second anti-slip gripping portion, and the first anti-slip gripping portion and the second anti-slip gripping portion are symmetrically arranged.

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