CN214589436U - Breakdown-preventing and waterproof connector - Google Patents
Breakdown-preventing and waterproof connector Download PDFInfo
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- CN214589436U CN214589436U CN202121225040.8U CN202121225040U CN214589436U CN 214589436 U CN214589436 U CN 214589436U CN 202121225040 U CN202121225040 U CN 202121225040U CN 214589436 U CN214589436 U CN 214589436U
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- contact pin
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Abstract
The utility model discloses a prevent breakdown and waterproof connector belongs to photovoltaic system connector technical field. The utility model discloses a contact pin and joint design make between anodal contact pin and anodal joint, between negative pole contact pin and negative pole joint, are formed with the air gap of certain width respectively, form the air separation, play the effect that isolation protection prevents puncturing. Meanwhile, the anode connector and the cathode connector are respectively processed into an inner layer and an outer layer, the inner layer is matched with the contact pin, the outer layer is contacted with air, an air gap with a certain width is formed between the inner layer and the outer layer, so that the metal piece in the inner layer and the plastic piece in the outer layer form air isolation, and the effect of isolation protection and breakdown prevention is achieved. The structure can also avoid that water is greatly infiltrated into the position of the connector, which is contacted with the metal piece, because the plastic part material outside the connector absorbs water. Simultaneously the utility model discloses set up the stopper between waterproof circle and cable, when the nut was screwed up, the stopper receives waterproof circle's extrusion back straining cable to play waterproof solidus effect.
Description
Technical Field
The utility model belongs to the technical field of the photovoltaic system connector, especially, relate to a connector with prevent puncturing and waterproof function.
Background
The connector is a connecting device which plays a role in transmitting current and protecting safety in a photovoltaic system. The breakdown resistance and the waterproof performance are one of the keys in the design of the connector structure. The existing connector shell is generally made of nylon plastic materials, has the advantages of weather resistance, acid and alkali resistance and the like, but has the defects of easy water absorption and reduced insulating property after water absorption. In addition, no gap exists between the outer plastic part joint and the inner metal part pin of the existing connector. When the connector is in a wet environment or is immersed in water, the external plastic part material absorbs water, so that a large amount of water can penetrate into the position where the connector is in contact with the metal part, and the electric breakdown fault is caused. On the other hand, the pin section of the connector is the place with the largest high-voltage breakdown risk, and no obvious gap exists between the existing connector pin and the connector, so that the related position becomes a breakdown weak point.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of existence among the prior art, provide a structural design is novel, easily makes, can improve the electrical safety level, improves the breakdown-proof and waterproof connector of reliability.
The technical scheme of the utility model as follows:
a breakdown-preventing and waterproof connector comprises a positive electrode connector, a positive electrode contact pin, a negative electrode connector and a negative electrode contact pin; the positive contact pin is embedded in the positive connector, and the negative contact pin is embedded in the negative connector;
a first air gap is formed between the positive contact pin and the positive connector;
the positive electrode connector comprises a positive electrode connector inner layer and a positive electrode connector outer layer, the positive electrode connector inner layer is matched with the positive electrode contact pin, the positive electrode connector outer layer is in contact with air, and a second air gap is formed between the positive electrode connector inner layer and the positive electrode connector outer layer;
a third air gap is formed between the negative contact pin and the negative joint;
the negative electrode joint comprises a negative electrode joint inner layer and a negative electrode joint outer layer, the negative electrode joint inner layer is matched with the negative electrode contact pin, the negative electrode joint outer layer is in contact with air, and a fourth air gap is formed between the negative electrode joint inner layer and the negative electrode joint outer layer.
Further, the connectors are divided into a positive connector and a negative connector; when the positive connector and the negative connector are oppositely inserted, the end part of the positive connector is inserted into the negative connector, and meanwhile, the positive pin in the positive connector is inserted into the negative pin in the negative connector.
Furthermore, retaining rings are respectively arranged between the positive contact pin and the positive connector and between the negative contact pin and the negative connector, and the retaining rings are assembled with the positive contact pin and the negative contact pin or integrally formed; the elastic part of the retaining ring is in contact with the inner parts of the anode joint and the cathode joint to form an inverted buckle; the positive contact pin and the negative contact pin are metal pieces.
Further, the positive contact pin is riveted with the positive cable; and the negative contact pin is riveted with the negative cable.
Furthermore, a waterproof ring is nested on the positive cable and the positive connector, and the positive connector is connected with the nut through threads; the negative pole cable and the negative pole connector are nested with a waterproof ring, and the negative pole connector is connected with the nut through threads.
Further, plugs are respectively arranged between the positive cable and the waterproof ring and between the negative cable and the waterproof ring.
Furthermore, positive pole connects, negative pole connects, the nut is the plastic part, the stopper is the stereoplasm spare.
Further, the waterproof ring is made of a silica gel piece.
Furthermore, an O-shaped ring is sleeved at one end of the positive connector, which is oppositely inserted with the negative connector, and the O-shaped ring is a silica gel piece.
The utility model has the beneficial technical effects that:
according to the above technical scheme, the utility model discloses mainly through the structural design to contact pin and joint, make between anodal contact pin and anodal joint, between negative pole contact pin and negative pole joint, be formed with the air gap of certain width respectively, form the air isolation, play the effect that isolation protection prevents puncturing. Meanwhile, the joint is processed into an inner layer and an outer layer, the inner layer is matched with the contact pin, the outer layer is contacted with air, an air gap with a certain width is formed between the inner layer and the outer layer, so that the metal piece contact pin and the retaining ring in the inner layer are isolated from the joint of the plastic piece in the outer layer by air, and the effects of isolation, protection and breakdown prevention are achieved. Meanwhile, the structure can also avoid that water is greatly infiltrated into the position where the connector is contacted with the metal piece due to the fact that the plastic part material outside the connector absorbs water. Simultaneously, set up the stopper between waterproof circle and cable, when the nut was screwed up, the stopper was fastened the cable and is played waterproof solidus effect after receiving the extrusion of waterproof circle.
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 a diagram illustrating a positive-negative electrode connector.
Fig. 2 is a finished view of the positive electrode connector.
Fig. 3 is a finished view of the negative connector.
Fig. 4 is an exploded view of the finished positive connector.
Fig. 5 is an exploded view of the negative connector product.
Fig. 6 is a cross-sectional view of the positive connector.
Fig. 7 is a cross-sectional view of the negative connector.
Fig. 8 is a structure view of a waterproof fixing wire.
In the figure: 101-positive connector, 102-positive plug pin, 103-retaining ring, 104-waterproof ring, 105-plug, 106-nut, 107-positive cable, 108-O-ring, 109-first air gap, 110-second air gap, 201-negative connector, 202-negative plug pin, 203-retaining ring, 204-waterproof ring, 205-plug, 206-nut, 207-negative cable, 209-third air gap, 210-fourth air gap.
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 to 3, the connector is divided into a positive connector and a negative connector. Referring to fig. 4, at the positive connector, a positive pin 102 is assembled with a retaining ring 103, or the positive pin 102 and the retaining ring 103 are integrally formed by punching and then embedded in a positive connector 101; the retaining ring 103 may be first installed in the positive terminal 101 and then inserted into the positive terminal 102. The positive pin 102 is a metal piece and the retaining ring 103 may be a non-conductive member. The function of the retaining ring 103 is that the elastic part of the retaining ring 103 contacts with the inside of the positive electrode connector 101 to form an inverted buckle, so as to realize the positioning of the positive electrode pin 102. The positive pin 102 has a conductive function, and one end of the positive pin is responsible for being inserted into a pin of the other polarity, and the other end of the positive pin is responsible for being connected with a cable. The O-ring 108 is fitted over the opposite insertion end of the positive electrode tab 101, and the O-ring 108 functions to seal the positive electrode tab 101 and the negative electrode tab 201 when they are inserted into each other. The positive cable 107 is riveted to the cable insertion end of the positive pin 102. The waterproof ring 104 is nested on the positive cable 107 and the positive connector 101. The nut 106 is screwed to the positive connector 101. The plug 105 is arranged between the waterproof ring 104 and the positive cable 107, and the plug 105 is used for fastening the positive cable 107 to fix the cable after being squeezed by the waterproof ring 104 when the nut 106 is screwed down. The positive electrode connector 101 and the nut 106 are plastic parts; the waterproof ring 104 and the O-shaped ring 108 are made of silica gel; the plug 105 is a rigid piece, such as a plastic or metal piece. Referring to fig. 5, at the negative connector, the assembly is substantially the same as that of the aforementioned positive connector except that one O-ring is omitted, and thus, the description thereof is omitted. As can be seen from fig. 1 to 5, when the positive connector and the negative connector are inserted into each other, the end of the positive connector 101 is inserted into the negative connector 201, and the positive pin 102 of the positive connector 101 is inserted into the negative pin 202 of the negative connector 201.
Referring to fig. 6, positive pole contact pin section department is by the biggest place of high-voltage breakdown risk, the utility model discloses set up here and prevent the breakdown structure: the diameter of the positive pin 102 is locally reduced, and the gap between the positive pin 102 and the positive connector 101 is increased, so that a first air gap 109 is formed between the positive pin 102 and the positive connector 101, and the effects of isolation protection and breakdown prevention are achieved. The anodal cable inserts the end and also is by the place that high-voltage breakdown risk is the biggest, the utility model discloses set up here and prevent the breakdown structure: the positive connector 101 is processed into an inner layer and an outer layer, the inner layer is matched with the positive pin 102, the outer layer is contacted with air, a second air gap 110 is formed between the inner layer and the outer layer, the positive pin 102 and the retaining ring 103 of the metal part in the inner layer are isolated from the positive connector 101 of the plastic part in the outer layer, and the effects of isolation protection and breakdown prevention are achieved. Meanwhile, the structure can also avoid that water is greatly infiltrated into the position where the connector is contacted with the metal piece due to the fact that the plastic part material outside the connector absorbs water.
Referring to fig. 7, the negative pole is inserted to the spigot by the biggest place of high-voltage breakdown risk, the utility model discloses set up here and prevent the breakdown structure: the inner wall of the negative electrode connector 201 is thinned, the gap between the negative electrode connector 201 and the negative electrode pin 202 is increased, the negative electrode pin 202 is only partially connected with the plastic part of the negative electrode connector 201, and a third air gap 209 is formed in most of the area between the negative electrode pin 202 and the negative electrode connector 201, so that the effects of isolation protection and breakdown prevention are achieved. The negative pole cable inserts the end and also is by the place that high-voltage breakdown risk is the biggest, the utility model discloses set up here and prevent the breakdown structure: the negative electrode connector 201 is processed into an inner layer and an outer layer, the inner layer is matched with the negative electrode contact pin 202, the outer layer is contacted with air, a fourth air gap 210 is formed between the inner layer and the outer layer, so that the negative electrode contact pin 202 and the retaining ring 203 of the metal piece in the inner layer are isolated from the negative electrode connector 201 of the plastic piece in the outer layer, and the effects of isolation protection and breakdown prevention are achieved. Meanwhile, the structure can also avoid that water is greatly infiltrated into the position where the connector is contacted with the metal piece due to the fact that the plastic part material outside the connector absorbs water.
Referring to fig. 8 in combination with fig. 6 and 7, the present invention is provided with a waterproof wire fixing structure in both the positive connector and the negative connector. Referring to fig. 8, taking the positive connector as an example, a plug 105 is disposed between the waterproof ring 104 and the positive cable 107, and when the nut 106 is tightened, the plug 105 is pressed by the waterproof ring 104 and then fastens the positive cable 107, thereby playing a role of waterproof wire fixation. Similarly, a plug 205 is provided in the negative electrode connector to perform the same function.
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 (9)
1. A breakdown-preventing and waterproof connector comprises a positive electrode connector, a positive electrode contact pin, a negative electrode connector and a negative electrode contact pin; the positive contact pin is embedded in the positive connector, and the negative contact pin is embedded in the negative connector; the method is characterized in that:
a first air gap is formed between the positive contact pin and the positive connector;
the positive electrode connector comprises a positive electrode connector inner layer and a positive electrode connector outer layer, the positive electrode connector inner layer is matched with the positive electrode contact pin, the positive electrode connector outer layer is in contact with air, and a second air gap is formed between the positive electrode connector inner layer and the positive electrode connector outer layer;
a third air gap is formed between the negative contact pin and the negative joint;
the negative electrode joint comprises a negative electrode joint inner layer and a negative electrode joint outer layer, the negative electrode joint inner layer is matched with the negative electrode contact pin, the negative electrode joint outer layer is in contact with air, and a fourth air gap is formed between the negative electrode joint inner layer and the negative electrode joint outer layer.
2. A break-through and waterproof connector as claimed in claim 1, wherein: the connector is divided into a positive connector and a negative connector; when the positive connector and the negative connector are oppositely inserted, the end part of the positive connector is inserted into the negative connector, and meanwhile, the positive pin in the positive connector is inserted into the negative pin in the negative connector.
3. A break-through and waterproof connector as claimed in claim 1, wherein: stopping rings are respectively arranged between the positive contact pin and the positive connector and between the negative contact pin and the negative connector, and the stopping rings are assembled with the positive contact pin and the negative contact pin or integrally formed; the elastic part of the retaining ring is in contact with the inner parts of the anode joint and the cathode joint to form an inverted buckle; the positive contact pin and the negative contact pin are metal pieces.
4. A break-through and waterproof connector as claimed in claim 1, wherein: the positive contact pin is riveted with the positive cable; and the negative contact pin is riveted with the negative cable.
5. The penetration-resistant and waterproof connector of claim 4, wherein: the positive cable and the positive joint are nested with a waterproof ring, and the positive joint is connected with the nut through threads; the negative pole cable and the negative pole connector are nested with a waterproof ring, and the negative pole connector is connected with the nut through threads.
6. A break-through and waterproof connector as claimed in claim 5, wherein: and plugs are respectively arranged between the positive cable and the waterproof ring and between the negative cable and the waterproof ring.
7. A break-through and waterproof connector as claimed in claim 6, wherein: the positive electrode joint, the negative electrode joint and the screw cap are plastic parts, and the plug is a hard part.
8. A break-through and waterproof connector as claimed in claim 6, wherein: the waterproof ring is made of a silica gel piece.
9. A break-through and waterproof connector as claimed in claim 2, wherein: and one end of the positive connector, which is oppositely inserted with the negative connector, is sleeved with an O-shaped ring, and the O-shaped ring is a silica gel piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121225040.8U CN214589436U (en) | 2021-06-03 | 2021-06-03 | Breakdown-preventing and waterproof connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121225040.8U CN214589436U (en) | 2021-06-03 | 2021-06-03 | Breakdown-preventing and waterproof connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214589436U true CN214589436U (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121225040.8U Active CN214589436U (en) | 2021-06-03 | 2021-06-03 | Breakdown-preventing and waterproof connector |
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| CN (1) | CN214589436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114122842A (en) * | 2021-11-26 | 2022-03-01 | 江西晶科光伏材料有限公司 | Prevent rotatory photovoltaic connector |
-
2021
- 2021-06-03 CN CN202121225040.8U patent/CN214589436U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114122842A (en) * | 2021-11-26 | 2022-03-01 | 江西晶科光伏材料有限公司 | Prevent rotatory photovoltaic connector |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230814 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. |