CN218242303U - Contact pin terminal of copper-aluminum connector - Google Patents
Contact pin terminal of copper-aluminum connector Download PDFInfo
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- CN218242303U CN218242303U CN202221951265.6U CN202221951265U CN218242303U CN 218242303 U CN218242303 U CN 218242303U CN 202221951265 U CN202221951265 U CN 202221951265U CN 218242303 U CN218242303 U CN 218242303U
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Abstract
The utility model discloses a contact pin terminal of copper aluminium connector belongs to photovoltaic system connector technical field. The utility model discloses a contact pin terminal includes negative pole contact pin and anodal contact pin, and negative pole contact pin and anodal contact pin include contact pin section, stopping section, rivet sinle silk section and rivet line skin section respectively; when the negative contact pin and the positive contact pin are connected with the aluminum wire, the arc-shaped opening of the riveting wire core section is folded to wrap the aluminum wire core and riveted, and the arc-shaped opening of the riveting wire sheath section is folded to tightly hoop the aluminum wire sheath. The riveting wire core section adopts a thicker tin coating layer, and is not easy to generate galvanic corrosion through the contact of the tin coating layer and the aluminum wire core. The riveting leather section is folded at the arc-shaped opening to tightly hoop the leather, and the back-off is embedded into the leather to enable the connection to be more tight. The structure of riveting the line skin section plays the condition that prevents here aluminum wire from buckling and causing the sinle silk fracture simultaneously.
Description
Technical Field
The utility model belongs to the technical field of the photovoltaic system connector, concretely relates to be applied to contact pin terminal to formula of inserting copper aluminium connector.
Background
Most of photovoltaic connectors in the current market adopt copper as a main material, and the price of copper cables rises along with the great rise of the price of copper. The aluminum material is a common cable material due to the advantages of being easy to obtain, light in weight, convenient to transport and the like, and therefore the electrical connection between the photovoltaic panel and the photovoltaic inverter can be achieved through the aluminum cable. But because unable lug connection between copper joint and the aluminium cable for when aluminium wire and copper line lug connection for electrochemical corrosion takes place for the aluminium wire, not only has the potential safety hazard, still can influence electrical connection. In order to solve the problem of connection between copper wires and aluminum wires, copper-aluminum connectors are generally used. Copper aluminium contact pin terminal of copper line and the junction of aluminium wire in the copper aluminium connector is the core structure of copper aluminium connector, also is the key of research and development, and the copper aluminium contact pin terminal of various structures comes in the turn, for example has one kind among the prior art to be applied to the copper aluminium terminal of formula copper aluminium connector of inserting, and it adopts copper aluminium composite rod structure, and the inner core is aluminium, and the skin is copper. The structure has high cost and low connection stability, and is difficult to meet the requirement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of existence among the prior art, provide a contact pin terminal of copper aluminium connector, this contact pin terminal can not take place the galvanic corrosion with aluminium wire junction, and structural strength is high moreover, and the aluminium wire rocks and buckles and be difficult to the fracture.
The technical scheme of the utility model as follows:
a contact pin terminal of a copper-aluminum connector comprises a negative contact pin and a positive contact pin which are fixed in a connector shell, wherein the negative contact pin and the positive contact pin are oppositely inserted and are respectively connected with an aluminum wire; the inner side of the riveting wire core section is provided with a tin coating layer, and the riveting wire core section wraps the aluminum wire core and is riveted with the aluminum wire core through the tin coating layer; the riveting device is characterized in that a back-off is arranged on the riveting leather section, and the riveting leather section wraps and compresses the aluminum leather while the back-off is embedded into the aluminum leather.
Furthermore, the riveting leather section and the riveting leather section are made of copper.
Furthermore, the riveting leather section and the riveting leather section are in opening arc shapes.
Furthermore, the back-off is formed by inward flanging of a part of copper sheet on the riveting line sheet section.
Furthermore, a section of aluminum wire core is exposed after the wire skin is removed from the end part of the aluminum wire.
Furthermore, the pin section of the negative pin and the pin section of the positive pin are connected in a mutual insertion mode through a bulging ring.
Further, the bulge ring is integrated with or separated from the pin terminal.
Furthermore, the retaining section is matched with the connector shell to form a retaining structure.
Further, the retaining structure comprises a retaining ring, and the retaining ring is mounted on the pin terminal or the connector housing.
The utility model has the beneficial technical effects that:
the utility model discloses set gradually at negative pole contact pin, anodal contact pin's afterbody and rivet the core wire section and rivet the line skin section, when negative pole contact pin, anodal contact pin are connected with the aluminum wire, the arcuation opening of riveting the core wire section folds the parcel and live the aluminum wire core and rivet, and the arcuation opening of riveting the line skin section folds and tightly hoops the aluminum wire skin. Because the aluminium sinle silk is more easy disconnected than conventional copper sinle silk, needs stronger structure, consequently the utility model discloses a what rivet the sinle silk section and will do is longer than prior art. Rivet sinle silk section and adopt the thick tin layer that covers, if cover the tin layer thin so just split very easily when riveting sinle silk section and buckle, the utility model discloses a cover the tin layer, even rivet the sinle silk section and buckle and cover the tin layer and can not produce the crack yet, cover tin layer and aluminium sinle silk contact all the time when just can guaranteeing to rivet, be difficult for taking place the galvanic corrosion. When the riveting wire skin section is folded to tightly hoop the wire skin at the arc-shaped opening, the back-off flanging is embedded into the wire skin to ensure that the connection is more tight. The structure of riveting the line skin section plays the condition that prevents here aluminum wire from buckling and causing the sinle silk fracture simultaneously.
Advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is an external view of the negative electrode pin of the present invention.
Fig. 2 is an external view of the positive electrode pin of the present invention.
Fig. 3 is a view of the utility model after the negative contact pin is riveted with the aluminum wire.
Fig. 4 is a view of the utility model after the positive contact pin is riveted with the aluminum wire.
Fig. 5 is a cross-sectional view of a reverse embedded cord sheath.
Fig. 6 is an exploded view of a negative connector formed by the negative pin according to the present invention.
Fig. 7 is a cross-sectional view of a negative connector formed by the negative pin according to the present invention.
Fig. 8 is an external view of a negative connector formed by the negative pin according to the present invention.
Fig. 9 is an exploded view of a positive connector constructed by the positive pin according to the present invention.
Fig. 10 is a cross-sectional view of a positive electrode connector formed by positive electrode pins according to the present invention.
Fig. 11 is an external view of a positive connector formed by the positive pin according to the present invention.
Fig. 12 is an external view of the negative electrode connector and the positive electrode connector after they are connected to each other.
Description of reference numerals: 100-negative pole connector, 101-negative pole pin, 102-negative pole connector shell, 103-negative pole aluminum wire, 104-negative pole sealing ring, 105-negative pole wire fixing collar, 106-negative pole nut, 11-negative pole pin section, 12-negative pole stopping section, 13-negative pole riveting core section, 14-negative pole riveting sheath section, 15-negative pole back-off, 1031-negative pole aluminum wire core, 1032-negative pole aluminum wire sheath;
200-positive electrode connector, 101-positive electrode pin, 102-positive electrode connector shell, 103-positive electrode aluminum wire, 104-positive electrode sealing ring, 105-positive electrode wire fixing clamping ring, 106-positive electrode nut, 207-O-shaped ring, 208-bulge-shaped ring, 21-positive electrode pin section, 22-positive electrode stopping section, 23-positive electrode riveting wire core section, 24-positive electrode riveting wire skin section, 25-positive electrode back-off, 2031-positive electrode aluminum wire core, 2032-positive electrode aluminum wire skin.
Advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Detailed Description
The following describes the embodiments of the present invention with reference to the accompanying drawings.
Referring to fig. 1 and 2, the pin terminal of the present invention includes a negative pin 101 and a positive pin 201.
The negative pin 101 comprises a negative pin section 11, a negative stopping section 12 located behind the negative pin section 11, a negative riveting core section 13 located behind the negative stopping section 12, and a negative riveting sheath section 14 located behind the negative riveting core section 13. The negative pole riveting line core section 13 and the negative pole riveting line skin section 14 are both in an opening arc shape. The inner side of the negative rivet wire core section 13 is provided with a thicker tin-coated layer. And a negative pole back-off 15 is arranged on the negative pole riveting line skin section 14.
The positive pin 201 includes a positive pin section 21, a positive stop section 22 located behind the positive pin section 21, a positive rivet core section 23 located behind the positive stop section 22, and a positive rivet sheath section 24 located behind the positive rivet core section 23. The positive pole riveting wire core section 23 and the positive pole riveting wire skin section 24 are both in an opening arc shape. The inside of the positive rivet core segment 23 has a thicker tin-clad layer. And a positive reverse buckle 25 is arranged on the positive riveting line leather section 24.
Referring to fig. 3, 4 and 5, the negative pin 101 and the positive pin 201 are connected to aluminum wires, respectively.
The arc-shaped opening of the negative riveting wire core section 13 is folded to wrap the negative aluminum wire core 1031 and is riveted with the negative aluminum wire core 1031 through the tin coating, so that galvanic corrosion is not easy to occur; the arc-shaped opening of the negative pole riveting line skin section 14 is folded and tightly presses the negative pole aluminum line skin 1032, and the negative pole back-off 15 is embedded into the negative pole aluminum line skin 1032 to reinforce the connection. The negative aluminum wire skin 1032 is a part which is easy to bend to cause wire core fracture, and the negative riveting wire skin section 14 strengthens the structure at the position to prevent fracture.
The arc-shaped opening of the positive electrode riveting wire core section 23 is folded to wrap the positive electrode aluminum wire core 2031 and is riveted with the positive electrode aluminum wire core 2031 through the tin coating, so that galvanic corrosion is not easy to occur; the arc-shaped opening of the positive pole riveting line skin section 24 is folded and tightly presses the positive pole aluminum line skin 2032, and the positive pole back-off 25 is embedded into the positive pole aluminum line skin 2032 for reinforcing connection. The positive aluminum skin 2032 is a part which is easy to bend to cause core fracture, and the positive riveting skin section 24 strengthens the structure at the position to prevent fracture.
Based on the copper-aluminum connector that the contact pin terminal of the utility model constitutes as follows. The copper-aluminum connector includes a negative connector 100 and a positive connector 200 that can be inserted into each other.
Referring to fig. 6, 7 and 8, the negative connector 100 includes a negative connector housing 102, and a negative pin 101 is mounted in the negative connector housing 102; the negative pin 101 is riveted with a negative aluminum wire 103; a negative sealing ring 104, a negative wire fixing clamping ring 105 and a negative nut 106 are sequentially nested on the negative aluminum wire 103, the negative sealing ring 104 is embedded between the negative aluminum wire 103 and the negative connector shell 102, and the negative wire fixing clamping ring 105 is embedded between the negative aluminum wire 103 and the negative sealing ring 104; the negative nut 106 presses the negative seal ring 104 and the negative wire fixing collar 105, and is matched with the negative connector shell 102 through threads. The negative stop section and the negative connector housing 102 form a stop structure to prevent the cable from being pulled out when pulled.
Referring to fig. 9, 10 and 11, the positive connector 200 includes a positive connector housing 202, and a positive pin 201 is mounted in the positive connector housing 202; the positive contact pin 201 is riveted with the positive aluminum wire 203; the positive aluminum wire 203 is sequentially nested with a positive sealing ring 204, a positive wire fixing collar 205 and a positive nut 206, the positive sealing ring 204 is embedded between the positive aluminum wire 203 and the positive connector shell 202, and the positive wire fixing collar 205 is embedded between the positive aluminum wire 203 and the positive sealing ring 204; the positive nut 206 presses against the positive seal ring 204 and the positive wire retaining collar 205 to threadably engage the positive connector housing 202. An O-ring 207 is sleeved on the outer wall of the positive connector housing 202. The positive electrode retaining section and the positive electrode connector housing 202 form a retaining structure to prevent the cable from being pulled out when the cable is pulled.
Referring to fig. 12, the negative connector 100 and the positive connector 200 are interconnected. As can be seen from fig. 7 and 10, when the negative connector 100 is connected to the positive connector 200, the negative pin 101 of the negative connector 100 is inserted into the positive pin 201 of the positive connector 200 and locked by the drum-shaped ring 208. Meanwhile, the positive connector housing 202 is inserted into the negative connector housing 102, and the O-ring 207 is positioned between the positive connector housing 202 and the negative connector housing 102 to play a role in sealing and damping; meanwhile, the positive connector housing 202 and the negative connector housing 102 are locked by a snap structure.
The copper-aluminum connector is applied in a mode that when an aluminum wire is interconnected with an aluminum wire, the copper-aluminum connector is directly inserted; when the aluminum wire and the copper wire are interconnected, the copper-aluminum connector is applied to directly plug conventional connectors such as MC and the like.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a contact pin terminal of copper aluminium connector, is including fixing negative pole contact pin and the anodal contact pin in the connector housing, negative pole contact pin and anodal contact pin are to inserting, and both are connected its characterized in that with the aluminium wire respectively again:
the negative contact pin comprises a negative contact pin section, a negative stopping section positioned behind the negative contact pin section, a negative riveting wire core section positioned behind the negative stopping section and a negative riveting wire skin section positioned behind the negative riveting wire core section; the positive contact pin comprises a positive contact pin section, a positive stopping section positioned behind the positive contact pin section, a positive riveting wire core section positioned behind the positive stopping section and a positive riveting wire skin section positioned behind the positive riveting wire core section;
the inner sides of the negative pole riveting wire core section and the positive pole riveting wire core section are respectively provided with a tin coating layer, and the negative pole riveting wire core section wraps the negative pole aluminum wire core and is riveted with the negative pole aluminum wire core through the tin coating layer; the positive electrode riveting wire core section wraps the positive electrode aluminum wire core and is riveted with the positive electrode aluminum wire core through the tin-coated layer;
the negative electrode riveting line skin section is provided with a negative electrode back-off, the negative electrode riveting line skin section wraps and compresses the negative electrode aluminum line skin, and the negative electrode back-off is embedded into the negative electrode aluminum line skin; the positive pole is riveted and is equipped with anodal back-off on the line leather section, anodal line leather section parcel is riveted and compress tightly anodal aluminium line leather simultaneously anodal back-off embedding anodal aluminium line leather is in.
2. The pin terminal of the copper-aluminum connector according to claim 1, characterized in that: the negative pole riveting leather section and the positive pole riveting leather section are made of copper.
3. The pin terminal of the copper-aluminum connector according to claim 1, characterized in that: the negative pole riveting line skin section and the positive pole riveting line skin section are in opening arc shapes.
4. The pin terminal of the copper-aluminum connector according to claim 1, characterized in that: the negative pole back-off is formed by inward flanging of a part of copper sheet on the negative pole riveting line sheet section; the positive pole back-off is formed by inwards flanging a part of copper sheet on the positive pole riveting line sheet section.
5. The pin terminal of the copper-aluminum connector according to claim 1, characterized in that: a section of cathode aluminum wire core is exposed after the wire skin is removed from the end part of the cathode aluminum wire; and a section of positive aluminum wire core is exposed after the wire skin is removed from the end part of the positive aluminum wire.
6. The pin terminal of the copper-aluminum connector according to claim 1, characterized in that: and the negative pin section of the negative pin is in plug-in connection with the positive pin section of the positive pin through a drum-shaped ring.
7. The pin terminal of the copper-aluminum connector according to claim 6, characterized in that: the bulging ring is integral with or separate from the pin terminal.
8. The pin terminal of the copper-aluminum connector according to claim 1, characterized in that: the negative electrode retaining section is matched with the negative electrode connector shell to form a retaining structure; the positive electrode retaining section is matched with the positive electrode connector shell to form a retaining structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221951265.6U CN218242303U (en) | 2022-07-27 | 2022-07-27 | Contact pin terminal of copper-aluminum connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221951265.6U CN218242303U (en) | 2022-07-27 | 2022-07-27 | Contact pin terminal of copper-aluminum connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218242303U true CN218242303U (en) | 2023-01-06 |
Family
ID=84678830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221951265.6U Active CN218242303U (en) | 2022-07-27 | 2022-07-27 | Contact pin terminal of copper-aluminum connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218242303U (en) |
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2022
- 2022-07-27 CN CN202221951265.6U patent/CN218242303U/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: 20230807 Address after: No. 2, Xiabao Road, Yueqing Bay Port District, Yueqing, Wenzhou City, Zhejiang Province 325600 Patentee after: Zhejiang Zhengtai Xinhui Photovoltaic Co.,Ltd. Address before: 325600 No. 192 Lane 22, Weisan Road, Yueqing Economic Development Zone, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG XINHUI PHOTOVOLTAIC TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right |