CN211700755U - Cable protection device and cable conversion connector - Google Patents
Cable protection device and cable conversion connector Download PDFInfo
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- CN211700755U CN211700755U CN202020721315.6U CN202020721315U CN211700755U CN 211700755 U CN211700755 U CN 211700755U CN 202020721315 U CN202020721315 U CN 202020721315U CN 211700755 U CN211700755 U CN 211700755U
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Abstract
The utility model discloses a cable protection device and cable conversion connector, the connector includes cable protection device and joint, the cable protection device includes the butt joint, the butt joint both ends all are connected with the plastic casing, the plastic casing inboard has the step hole, the step hole has the sealing washer, the sealing washer is provided with the plastic ring outward, the plastic ring has the extrusion tooth; the plastic shell is connected with a plastic cap, the plastic cap is connected with the plastic shell, and the plastic cap presses the extrusion teeth to extrude the sealing ring to realize sealing; the utility model discloses a connector for cable conversion simple structure, the installation is simple convenient, is convenient for maintain, realizes completely cut off the cable with external, prevents dust, water, air etc. and gets into and the special position (if connect) contact of cable or cable, avoids producing harmful effects, improves reliability and stability.
Description
Technical Field
The utility model relates to a cable protection device for place outside the cable, seal cable inside, realize that the inside cable of cable protection device and external dust, water, air etc. are isolated. The utility model discloses still relate to the connector that is used for the cable conversion who has above-mentioned cable protection device.
Background
Special parts of the cable often need to be isolated from external dust, water, air and the like, such as the connecting part of the cable. For example, when the photovoltaic circuit part is changed into an aluminum or aluminum alloy conductor cable, the connection between copper and aluminum is involved, and sealing is needed to be performed to solve the problem of electrochemical corrosion between copper and aluminum. Otherwise, connection failure may be caused, and safe and stable operation of the photovoltaic circuit is affected. Good connections with contact resistance slightly above the initial value; and poor connections may have contact resistances that reach tens or even hundreds of times the initial value. The power consumed by one connector is balanced with the power consumed by the whole cable. The contact resistance is large, so that the heat generation is more serious, which is a vicious circle. Not only causes unnecessary consumption of electric power, but also causes disconnection of electric circuit or electric fire for a long time.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a make cable and isolated cable protection device such as external dust, water, air are provided. The utility model discloses still relate to the connector that has above-mentioned cable protection device structure.
In order to solve the technical problem, the utility model discloses cable protection device includes the butt joint, the butt joint left end is connected with left plastic casing, the butt joint right-hand member is connected with right plastic casing.
On the left side of the left plastic shell, a left step hole is formed in the inner side of the left plastic shell, a left end face is arranged between a large hole and a small hole of the left step hole, a left sealing ring is arranged in the large hole of the left step hole at the position of the left end face, a left convex ring is arranged at the end part of the left sealing ring, and the left convex ring is attached to the left end face; a left plastic ring is arranged outside the left sealing ring in the large hole of the left stepped hole, and the left plastic ring is provided with a plurality of left extrusion teeth which are uniformly distributed; the end surface of the left plastic ring extrudes the left convex ring towards the left end surface; the left sealing ring and the left extrusion teeth extend out of the left plastic shell; the left plastic shell is connected with a left plastic cap, and when the left plastic cap is connected to the left plastic shell, the left plastic cap presses the left extrusion teeth to extrude the left sealing ring.
On the right side of the right plastic shell, a right step hole is formed in the inner side of the right plastic shell, a right end face is arranged between a large hole and a small hole of the right step hole, a right sealing ring is arranged in the large hole of the right step hole at the position of the right end face, a right convex ring is arranged at the end part of the right sealing ring, and the right convex ring is attached to the right end face; a right plastic ring is arranged outside the right sealing ring in a large hole of the right stepped hole, and the right plastic ring is provided with a plurality of right extrusion teeth which are uniformly distributed; the end surface of the right plastic ring extrudes the right convex ring to the right end surface; the right sealing ring and the right extrusion teeth extend out of the right plastic shell; the right plastic shell is connected with a right plastic cap, and when the right plastic cap is connected to the right plastic shell, the right plastic cap presses the right extrusion teeth to extrude the right sealing ring.
After the cable passes through the cable protection device, at the left end of the cable protection device, the left plastic cap presses the left extrusion teeth to extrude the left sealing ring, so that the left sealing ring and the cable are sealed, and the right plastic cap presses the right extrusion teeth to extrude the right sealing ring, so that the right sealing ring and the cable are sealed. Therefore, the two ends of the cable protection device are sealed with the cable, and the cable inside the cable protection device is isolated from the outside.
Preferably, the left end of the butt joint is connected with a left plastic shell through threads, and the right end of the butt joint is connected with a right plastic shell through threads. Waterproof pads are arranged between the butt joint and the left plastic shell and between the butt joint and the right plastic shell. The left plastic cap is connected to the left plastic shell through threads, and the right plastic cap is connected to the right plastic shell through threads.
The connector for cable conversion comprises the cable protection device structure, wherein a joint is arranged in the butt joint, the left end of the joint is provided with a left interface, the right end of the joint is provided with a right interface, the left interface is connected with a left lead, and the right interface is connected with a right lead; the left lead penetrates out of the left plastic cap through the inner side of the left sealing ring, and when the left plastic cap presses the left extrusion teeth to extrude the left sealing ring, the left sealing ring and the left lead are sealed; the right wire penetrates out of the right plastic cap through the inner side of the right sealing ring, and when the right plastic cap presses the right extrusion teeth to extrude the right sealing ring, the right sealing ring and the right wire are sealed. Therefore, in the connector, the left lead and the right lead which are connected with the left end and the right end of the connector are isolated from the outside. Simultaneously, left side plastic cap oppresses left extrusion tooth and extrudees left sealing washer, right side plastic cap oppresses right extrusion tooth and extrudees right sealing washer, and the rigidity between cable protection device and the cable has ensured the stability of cable, prevents to split (or the junction fracture).
In order to fix the connector and avoid the connector from moving during installation, the inner diameter of the small hole of the left step hole is larger than the outer diameter of the left lead and smaller than the outer diameter of the left connector; the inner diameter of the small hole of the right step hole is larger than the outer diameter of the right lead and smaller than the outer diameter of the right connector. Thus, the joint is confined between the left and right plastic housings.
The utility model discloses a connector for cable conversion simple structure, the installation is simple convenient, is convenient for maintain, realizes completely cut off the cable with external, prevents dust, water, air etc. and gets into and the special position (if connect) contact of cable or cable, avoids producing harmful effects, improves reliability and stability.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a diagram of a connector component.
Fig. 2 is a cross-sectional view of the connector.
Fig. 3 is a perspective view of the connector.
Detailed Description
As shown in fig. 1, 2 and 3, the cable conversion connector includes a cable protector and a contact 16 inside the cable protector.
The cable protection device comprises a butt joint 1, wherein the left end of the butt joint 1 is connected with a left plastic shell 3, and the right end of the butt joint 1 is connected with a right plastic shell 10. The left end of the butt joint 1 is connected with the left plastic shell 3 through threads, and the right end of the butt joint 1 is connected with the right plastic shell 10 through threads. Waterproof pads 2 are arranged between the butt joint 1 and the left plastic shell 3 and between the butt joint and the right plastic shell 10.
On the left side of the left plastic shell 3, a left step hole 4 is formed in the inner side of the left plastic shell 3, a left end face is arranged between a large hole and a small hole of the left step hole 4, a left sealing ring 5 is arranged in the large hole of the left step hole 4 at the position of the left end face, a left convex ring 6 is arranged at the end part of the left sealing ring 5, and the left convex ring 6 is attached to the left end face to realize sealing; in the large hole of the left stepped hole 4, a left plastic ring 7 is arranged outside the left sealing ring 5, and the left plastic ring 7 is provided with a plurality of left extrusion teeth 8 which are uniformly distributed; the end face of the left plastic ring 7 (extruded by the left plastic cap 9) extrudes the left convex ring 6 to the left end face; the left sealing ring 5 and the left extrusion teeth 8 extend out of the left plastic shell 3; the left plastic shell 3 is connected with a left plastic cap 9, and specifically, the left plastic cap 9 is connected to the left plastic shell 3 through threads. When left side plastic cap 9 is connected on left plastic casing 3, left side plastic cap 9 oppresses left extrusion tooth 8 (left plastic cap 9 inboard has the inclined plane, and the inclined plane oppresses left extrusion tooth 8) and extrudees left sealing washer 5, makes left sealing washer 5 paste airtightly rather than inside cable mutually (also realize fixedly simultaneously).
On the right side of the right plastic shell 10, a right step hole is formed in the inner side of the right plastic shell 10, a right end face is arranged between a large hole and a small hole of the right step hole, a right sealing ring 11 is arranged in the large hole of the right step hole at the position of the right end face, a right convex ring 12 is arranged at the end part of the right sealing ring 11, and the right convex ring 12 is attached to the right end face to realize sealing; in the large hole of the right stepped hole, a right plastic ring 13 is arranged outside the right sealing ring 11, and the right plastic ring 13 is provided with a plurality of right extrusion teeth 14 which are uniformly distributed; the end face of the right plastic ring 13 (extruded by the right plastic cap 15) extrudes the right convex ring 12 to the right end face; the right sealing ring 11 and the right extrusion teeth 14 extend out of the right plastic shell 10; the right plastic shell 10 is connected with a right plastic cap 15, and specifically, the right plastic cap 15 is connected to the right plastic shell 10 through threads. When the right plastic cap 15 is connected to the right plastic shell 10, the right plastic cap 15 presses the right extrusion teeth 14 (the inner side of the right plastic cap 15 is provided with an inclined plane, and the inclined plane presses the right extrusion teeth 14) to extrude the right sealing ring 11, so that the right sealing ring 11 is attached to the cable inside the right sealing ring to be airtight (meanwhile, the fixation is also realized).
The connector 16 is positioned in the butt joint 1, the left end of the connector 16 is provided with a left interface 17, the right end of the connector 16 is provided with a right interface 18, the left interface 17 is internally connected with a left lead 19 through riveting, and the right interface 18 is connected with a right lead 20; the left lead 19 passes through the inner side of the left sealing ring 5 and penetrates out of the left plastic cap 9, and when the left plastic cap 9 presses the left extrusion teeth 8 to extrude the left sealing ring 5, the left sealing ring 5 and the left lead 19 are sealed; the right lead 20 penetrates out of the right plastic cap 15 through the inner side of the right sealing ring 11, and when the right plastic cap 15 presses the right extrusion teeth 14 to extrude the right sealing ring 11, the right sealing ring 11 and the right lead 20 are sealed.
Meanwhile, the inner diameter of the small hole of the left stepped hole is larger than the outer diameter of the left lead 19, so that the left lead 19 can conveniently pass through the small hole and is smaller than the outer diameter of the left connector 17, and the left plastic shell 3 limits the left end of the connector 16; the inner diameter of the small hole of the right stepped hole is larger than the outer diameter of the right lead 20, so that the right lead 20 can conveniently pass through the small hole and is smaller than the outer diameter of the right connector 18, and the right plastic shell 10 limits the right end of the connector 16. Thus, the joint 16 is confined between the left plastic housing 3 and the right plastic housing 10, and the joint 16 is prevented from moving.
After the cable passes through the cable protection device, at the left end of the cable protection device, the left plastic cap 9 presses the left extrusion teeth 8 to extrude the left sealing ring 5, so that the left sealing ring 5 is sealed with the cable inside, and the right plastic cap 15 presses the right extrusion teeth 14 to extrude the right sealing ring 11, so that the right sealing ring 11 is sealed with the cable inside. Therefore, the two ends of the cable protection device are sealed with the cable, and the cable inside the cable protection device is isolated from the outside.
If the copper-aluminum cable conversion connector is used as a photovoltaic module copper-aluminum cable conversion connector, the left end of the connector 16 is a copper left connector, the right end of the connector is an aluminum right connector, and the copper left connector (circular tube) and the aluminum right connector (circular tube) are connected through a friction welding process. The right aluminum connector (circular tube) is pre-coated with antioxidant.
The copper left connector is internally connected with a copper cable conductor through riveting (or other connection modes, the same below), and the aluminum right connector is internally connected with an aluminum cable conductor through riveting. The copper cable penetrates out of the left plastic cap 9 through the inner side of the left sealing ring 5, and when the left plastic cap 9 presses the left extrusion teeth 8 to extrude the left sealing ring 5, the left sealing ring 5 and the copper cable are sealed; the aluminum cable penetrates out of the right plastic cap 15 through the inner side of the right sealing ring 11, and when the right plastic cap 15 presses the right extrusion teeth 14 to extrude the right sealing ring 11, the right sealing ring 11 and the aluminum cable are sealed. Therefore, the waterproof and dustproof performance, the high and low temperature resistance, the ultraviolet resistance, the touch performance and other performances can be achieved, the reliability and the stability of copper-aluminum connection (Cu-Al) can be improved, and the installation is simple and convenient and is convenient to maintain. Meanwhile, the cable protection device is fixed with the copper cable and the aluminum cable, so that the connection firmness of the copper cable and the aluminum cable is improved.
The installation and use sequence is as follows:
1. the copper cable and the aluminum cable are respectively pre-penetrated through a left end part and a right end part: the left end copper cable passes through a left plastic cap 9, a left plastic ring 7, a left sealing ring 5, a left plastic shell 3, a waterproof pad 2 and a butt joint 1 in sequence, and the right end aluminum cable passes through a right plastic cap 15, a right plastic ring 13, a right sealing ring 11, a right plastic shell 10 and a waterproof pad 2 in sequence.
2. And (3) pre-assembling the components in each step 1, wherein the components are only loosely assembled without screwing.
3. The insulating skins (25 +/-1.5 mm of copper conductor and 25 +/-1.5 mm of aluminum conductor) at the head parts of the copper cable and the aluminum cable are respectively peeled, so that copper wires (aluminum wires) cannot be damaged or broken.
4. The conductor of the left end copper cable is threaded into the left port 17 of the copper end of the contact 16 until the copper conductor makes contact with the bottommost portion.
5. By means of a belt having a length of 4mm2The left end of the joint 16 is riveted by a special manual hydraulic clamp of the cutting die until the upper blade and the lower blade are completely attached.
6. The conductor of the right-hand aluminum cable is threaded into the right port 18 of the aluminum end of the connector 16 until the aluminum conductor contacts the bottommost portion.
7. By means of a container having a diameter of 6mm2The right end of the joint 16 is riveted by a special manual hydraulic clamp of the cutting die until the upper blade and the lower blade are completely attached.
8. After the quality problem of riveting is detected, the left plastic shell 3 is screwed and installed on the left side of the butt joint 1 through threads, and the right plastic shell 10 is screwed and installed on the right side of the butt joint 1 through threads. The tightening can be performed by a torque tool, and the tightening torque between the butt joint 1 and the left and right plastic housings 3 and 10 needs to reach 5N.
9. After the cables at the two ends are straightened, the hexagonal steps of the long shell are respectively fixed, the left plastic cap 9 and the right plastic cap 15 at the two ends are respectively installed (screwed through threads) on the left plastic shell 3 and the right plastic shell 10 by using a torque tool, and the screwing torque needs to reach 5N.
The cable protection device can be used independently to seal and isolate cables therein.
The above-mentioned embodiment does not limit the utility model in any way, and all the technical solutions that adopt the mode of equivalent replacement or equivalent transform to obtain all fall within the protection scope of the utility model.
Claims (9)
1. The cable protection device is characterized by comprising a butt joint, wherein the left end of the butt joint is connected with a left plastic shell, and the right end of the butt joint is connected with a right plastic shell; on the left side of the left plastic shell, a left step hole is formed in the inner side of the left plastic shell, a left end face is arranged between a large hole and a small hole of the left step hole, a left sealing ring is arranged in the large hole of the left step hole at the position of the left end face, a left convex ring is arranged at the end part of the left sealing ring, and the left convex ring is attached to the left end face; a left plastic ring is arranged outside the left sealing ring in the large hole of the left stepped hole, and the left plastic ring is provided with a plurality of left extrusion teeth which are uniformly distributed; the end surface of the left plastic ring extrudes the left convex ring towards the left end surface; the left sealing ring and the left extrusion teeth extend out of the left plastic shell; the left plastic shell is connected with a left plastic cap, and when the left plastic cap is connected to the left plastic shell, the left plastic cap presses the left extrusion teeth to extrude the left sealing ring; on the right side of the right plastic shell, a right step hole is formed in the inner side of the right plastic shell, a right end face is arranged between a large hole and a small hole of the right step hole, a right sealing ring is arranged in the large hole of the right step hole at the position of the right end face, a right convex ring is arranged at the end part of the right sealing ring, and the right convex ring is attached to the right end face; a right plastic ring is arranged outside the right sealing ring in a large hole of the right stepped hole, and the right plastic ring is provided with a plurality of right extrusion teeth which are uniformly distributed; the end surface of the right plastic ring extrudes the right convex ring to the right end surface; the right sealing ring and the right extrusion teeth extend out of the right plastic shell; the right plastic shell is connected with a right plastic cap, and when the right plastic cap is connected to the right plastic shell, the right plastic cap presses the right extrusion teeth to extrude the right sealing ring.
2. The cable protection device of claim 1, wherein: the left end of the butt joint is connected with a left plastic shell through threads, and the right end of the butt joint is connected with a right plastic shell through threads.
3. The cable protection device according to claim 1 or 2, wherein: waterproof pads are arranged between the butt joint and the left plastic shell and between the butt joint and the right plastic shell.
4. The cable protection device of claim 1, wherein: the left plastic cap is connected to the left plastic shell through threads, and the right plastic cap is connected to the right plastic shell through threads.
5. The cable conversion connector is characterized by comprising a butt joint, wherein the left end of the butt joint is connected with a left plastic shell, and the right end of the butt joint is connected with a right plastic shell; on the left side of the left plastic shell, a left step hole is formed in the inner side of the left plastic shell, a left end face is arranged between a large hole and a small hole of the left step hole, a left sealing ring is arranged in the large hole of the left step hole at the position of the left end face, a left convex ring is arranged at the end part of the left sealing ring, and the left convex ring is attached to the left end face; a left plastic ring is arranged outside the left sealing ring in the large hole of the left stepped hole, and the left plastic ring is provided with a plurality of left extrusion teeth which are uniformly distributed; the end surface of the left plastic ring extrudes the left convex ring towards the left end surface; the left sealing ring and the left extrusion teeth extend out of the left plastic shell; the left plastic shell is connected with a left plastic cap, and when the left plastic cap is connected to the left plastic shell, the left plastic cap presses the left extrusion teeth to extrude the left sealing ring; on the right side of the right plastic shell, a right step hole is formed in the inner side of the right plastic shell, a right end face is arranged between a large hole and a small hole of the right step hole, a right sealing ring is arranged in the large hole of the right step hole at the position of the right end face, a right convex ring is arranged at the end part of the right sealing ring, and the right convex ring is attached to the right end face; a right plastic ring is arranged outside the right sealing ring in a large hole of the right stepped hole, and the right plastic ring is provided with a plurality of right extrusion teeth which are uniformly distributed; the end surface of the right plastic ring extrudes the right convex ring to the right end surface; the right sealing ring and the right extrusion teeth extend out of the right plastic shell; the right plastic shell is connected with a right plastic cap, and when the right plastic cap is connected to the right plastic shell, the right plastic cap presses the right extrusion teeth to extrude the right sealing ring; the butt joint is internally provided with a joint, the left end of the joint is provided with a left interface, the right end of the joint is provided with a right interface, the left interface is connected with a left lead, and the right interface is connected with a right lead; the left lead penetrates out of the left plastic cap through the inner side of the left sealing ring, and when the left plastic cap presses the left extrusion teeth to extrude the left sealing ring, the left sealing ring and the left lead are sealed; the right wire penetrates out of the right plastic cap through the inner side of the right sealing ring, and when the right plastic cap presses the right extrusion teeth to extrude the right sealing ring, the right sealing ring and the right wire are sealed.
6. The cable transition connector of claim 5, wherein: the left end of the butt joint is connected with a left plastic shell through threads, and the right end of the butt joint is connected with a right plastic shell through threads.
7. The cable conversion connector according to claim 5 or 6, wherein: waterproof pads are arranged between the butt joint and the left plastic shell and between the butt joint and the right plastic shell.
8. The cable transition connector of claim 5, wherein: the left plastic cap is connected to the left plastic shell through threads, and the right plastic cap is connected to the right plastic shell through threads.
9. The cable transition connector of claim 5, wherein: the inner diameter of the small hole of the left stepped hole is larger than the outer diameter of the left lead and smaller than the outer diameter of the left connector; the inner diameter of the small hole of the right step hole is larger than the outer diameter of the right lead and smaller than the outer diameter of the right connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020721315.6U CN211700755U (en) | 2020-05-06 | 2020-05-06 | Cable protection device and cable conversion connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020721315.6U CN211700755U (en) | 2020-05-06 | 2020-05-06 | Cable protection device and cable conversion connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211700755U true CN211700755U (en) | 2020-10-16 |
Family
ID=72783745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020721315.6U Active CN211700755U (en) | 2020-05-06 | 2020-05-06 | Cable protection device and cable conversion connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211700755U (en) |
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2020
- 2020-05-06 CN CN202020721315.6U patent/CN211700755U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211022 Address after: 215500 No.8, Changkun Road, Changshu Southeast Economic Development Zone, Suzhou City, Jiangsu Province Patentee after: CHANGSHU LIXING PHOTOELECTRIC SCIENCE & TECHNOLOGY Co.,Ltd. Patentee after: HUANGHE HYDROPOWER DEVELOPMENT Co.,Ltd. Patentee after: QINGHAI HUANGHE HYDROPOWER DEVELOPMENT Co.,Ltd. Patentee after: Xining solar power branch of Qinghai upper Yellow River Hydropower Development Co.,Ltd. Address before: 215558 No. 8, Changkun Road, Southeast Economic Development Zone, Changshu, Suzhou, Jiangsu Patentee before: CHANGSHU LIXING PHOTOELECTRIC SCIENCE & TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |