CN220492289U

CN220492289U - Photovoltaic connector and photovoltaic connector assembly

Info

Publication number: CN220492289U
Application number: CN202223483579.0U
Authority: CN
Inventors: 杨迅; 彭丽霞; 罗光红; 许浩良
Original assignee: Changshu Telian Precision Devices Co ltd; Atlas Sunshine Power Group Co Ltd
Current assignee: Changshu Telian Precision Devices Co ltd; Canadian Solar Inc
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2024-02-13
Anticipated expiration: 2032-12-23

Abstract

The utility model discloses a photovoltaic connector and a photovoltaic connector assembly, wherein the photovoltaic connector comprises: a connector body, a terminal aperture, and a seal; the seal is formed around the peripheral edge of the terminal aperture. According to the photovoltaic connector disclosed by the utility model, the sealing element is imaged on the connector body and is positioned at the peripheral edge of the terminal perforation, so that the sealing element can be more firmly installed and fixed on the connector body, and the sealing element can be prevented from moving in the process of plugging the photovoltaic connector and the matched connector, thereby better realizing the sealing of the sealing element.

Description

Photovoltaic connector and photovoltaic connector assembly

Technical Field

The utility model relates to the technical field of photovoltaic connectors, in particular to a photovoltaic connector and a photovoltaic connector assembly.

Background

The photovoltaic connector is a key part for interconnecting all components such as a photovoltaic module, a combiner box, a controller, an inverter and the like in the photovoltaic power generation system. In photovoltaic power plants, cables and photovoltaic connectors are required in the process of bringing together the electrical energy of a large number of photovoltaic modules and into the inverter.

The long term exposure of photovoltaic connectors to extreme environments requires that the photovoltaic connectors must be able to accommodate these harsh environments. The photovoltaic connector in the prior art has poor waterproof performance and is easy to fail in a severe environment in a long-term use process.

Disclosure of Invention

The utility model aims to provide a photovoltaic connector, which solves the defects in the prior art, is arranged on a connector body in a molding mode, avoids the movement of a sealing element in the process of plugging the photovoltaic connector and an adaptive connector, and has better sealing effect.

The photovoltaic connector provided by the utility model comprises: a connector body, a terminal aperture, and a seal; the seal is formed around the peripheral edge of the terminal aperture.

Further, the sealing member is formed on the connector body by double-shot molding.

The sealing piece is a fluororubber piece or a silica gel piece; the connector body is a hard plastic piece.

Further, the seal surface is provided with a number of protrusions.

Further, the photovoltaic connector is a plug connector, and the connector body comprises a plug base and a plug-in part arranged on the plug base; the terminal through holes are plug terminal through holes penetrating through the plug base and the plug-in connection part;

the sealing piece is formed at one end of the plug-in part far away from the plug base, and is arranged in an annular mode and located at the edge of the through hole of the plug terminal.

Further, the photovoltaic connector is a socket connector, and the connector body comprises a socket body and a plugging groove arranged on the socket body; the terminal through holes are socket terminal through holes communicated with the inserting grooves;

the socket terminal perforation is provided with an inlet, the inlet is arranged at the bottom of the inserting groove, and the sealing piece is formed at the bottom of the inserting groove and is positioned at the periphery of the inlet.

Another embodiment of the present utility model also discloses a photovoltaic connector assembly comprising: the photovoltaic connector, the socket connector and the sealing piece; the photovoltaic connector is a plug connector;

the socket connector is provided with a plug groove arranged towards the opening of the plug connector and a socket terminal through hole communicated with the plug groove, the plug part is positioned in the plug groove, and the plug terminal through hole is opposite to the socket terminal through hole in position.

Further, one end of the sealing piece, which is away from the plug connector, abuts against the bottom of the inserting groove.

Further, the socket body is further provided with a baffle ring which is arranged at the edge of the through hole of the socket terminal and extends towards the inserting groove, an annular positioning groove for positioning the sealing element is formed between the baffle ring and the inner wall of the inserting groove, the annular positioning groove is exposed towards the inserting groove, and the sealing element positioning part is arranged in the annular positioning groove and is positioned at the bottom of the annular positioning groove.

Further, an elastic clamping pin is arranged on the plug connector, and a clamping pin accommodating groove matched with the elastic clamping pin is arranged on the socket connector;

the elastic clamping pin is provided with a clamping hook which abuts against the clamping table.

Compared with the prior art, the photovoltaic connector disclosed by the utility model has the advantages that the sealing element is imaged on the connector body and is positioned at the peripheral edge of the terminal perforation, so that the sealing element can be more firmly installed and fixed on the connector body, and the movement of the sealing element can be avoided in the process of plugging the photovoltaic connector and the matched connector, thereby better sealing of the sealing element is realized.

Drawings

FIG. 1 is a schematic view of a photovoltaic connector assembly according to an embodiment of the present disclosure;

fig. 2 is a schematic structural view of a plug connector according to a first embodiment of the present utility model;

fig. 3 is a schematic structural view of a receptacle connector according to a first embodiment of the present utility model;

fig. 4 is a schematic structural view of a photovoltaic connector assembly according to a first embodiment of the present utility model after the plug connector and the receptacle connector are assembled;

fig. 5 is a schematic structural view of a receptacle connector according to a second embodiment of the present utility model;

fig. 6 is a schematic view of a photovoltaic connector assembly according to a second embodiment of the present utility model after the plug connector and the receptacle connector are assembled;

fig. 7 is a schematic view of a photovoltaic connector assembly according to a third embodiment of the present utility model after the plug connector and the receptacle connector are assembled;

reference numerals illustrate: the plug connector comprises a 1-plug connector, a 11-plug base, a 12-plug part, a 13-plug terminal perforation, a 14-sealing piece, a 15-elastic clamping pin, a 151-clamping hook, a 2-socket connector, a 20-plug groove, a 21-socket body, a 22-socket terminal perforation, a 220-inlet, a 23-sealing piece positioning part, a 24-baffle ring, a 25-annular positioning groove, a 26-clamping pin accommodating groove and a 27-clamping table.

Detailed Description

The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

Embodiments of the utility model: as shown in fig. 1, a photovoltaic connector is disclosed, comprising: a connector body, a terminal aperture, and a seal; the seal is formed on the connector body and is located at the peripheral edge of the terminal through hole.

In this embodiment, the sealing element is imaged on the connector body and is located at the periphery edge of the terminal perforation, so that the sealing element can be stably installed and fixed on the connector body, and the sealing element can be prevented from moving in the process of plugging the socket connector and the plug connector, so that the sealing of the sealing element is better realized.

The photovoltaic connector in this embodiment may be the plug connector 1 or the socket connector 2; when the photovoltaic connector is the plug connector 1, the terminal through holes are plug terminal through holes 13 arranged on the plug connector 1, and the connector body comprises a plug base 11 and a plug-in part 12 arranged on the plug base 11. When the photovoltaic connector is the receptacle connector 2, the terminal through holes are receptacle terminal through holes 22 provided on the receptacle connector 2; the connector body is a socket body 21.

The plug connector 1 is applied to a photovoltaic connector assembly, and is mainly used for being in plug-in fit with a socket connector 2 of the photovoltaic connector assembly, a plug terminal is arranged on the plug connector 1, a socket terminal is arranged on the socket connector 2, after the plug connector 1 is in plug-in fit with the socket connector 2, the plug terminal is electrically connected with the socket terminal, the plug terminal is electrically connected with an anode cable 100, the socket terminal is electrically connected with a cathode cable 200, and the electric connection between the anode cable 100 and the cathode cable 200 is realized through the fit of the plug connector and the socket connector.

As shown in fig. 2, the plug connector 1 disclosed in this embodiment includes a plug base 11, a plug portion 12, and a plug terminal through hole 13, the plug portion 12 is disposed on the plug base 11, and the terminal through hole 13 sequentially penetrates through the plug base 11 and the plug portion 12 along an extension direction of the plug portion 12;

the plug-in part 12 is provided with a sealing member 14 at one end far away from the plug base 11, and the sealing member 14 is annular and is positioned at the peripheral edge of the plug terminal through hole 13. Specifically, the end of the plugging portion 12 away from the plug base 11 is a free end, the sealing member 14 is fixed on the free end, and the sealing member 14 is formed on the plugging portion 12.

The plugging portion 12 is generally arranged in a columnar extending manner, the plug terminal through hole 13 penetrates through the plugging portion 12 along the central position of the plugging portion 12, so that the free end of the plugging portion 12 has an annular structure, the sealing member 14 is an annular sealing ring arranged at the free end of the plugging portion 12, a sealing ring through hole is arranged in the middle of the sealing member 14, and the sealing ring through hole is opposite to the plug terminal through hole 13 in position and penetrates through each other.

The sealing element in the prior art is generally sleeved on the outer side wall of the plug-in part, the opposite socket connector is provided with a plug-in groove matched with the plug-in part, and the sealing element is generally clamped and positioned between the inner wall of the plug-in groove and the outer wall of the plug-in part. The sealing mode in the prior art is easy to cause the movement of the sealing element when the plug connector is matched with the socket connector, thereby influencing the sealing effect of the sealing element.

The plug connector disclosed in the application forms the sealing element 14 at the free end of the plug-in part 12, so that the sealing element 14 can not move in the process of matching the plug connector 1 with the socket connector 2, and the sealing element 14 has better sealing effect.

In addition, the sealing element 14 is arranged at one end of the plugging part 12, and can be abutted in the plugging groove on the socket connector 2 after being plugged and matched with the socket connector 2, so that the sealing positioning of the sealing element 14 in the plugging groove is realized in a manner of abutting the sealing element 14, and a better sealing effect is achieved.

In this embodiment, the sealing element 14 is injection molded integrally onto the plug section 12. The sealing element 14 and the plugging portion 12 may be integrally formed by a two-color injection molding process, and the sealing element 14 may be more tightly disposed on the plugging portion 12 by the two-color injection molding process, so as to improve the sealing effect.

In this embodiment, the plugging portion 12 is generally made of hard plastic, and is specifically made of PC, PA, PPE, etc. The sealing member 14 is a fluororubber member or a silicone member. Preferably, the sealing member 14 is a fluororubber member. The material of the specific fluororubber member may be fluororubber 23, fluororubber 26, fluororubber 246, fluororubber TP, vinylidene fluoride rubber, fluorosilicone rubber, or the like.

The fluorine element has low surface energy and stronger drainage, so that the formed fluororubber part surface can not collect water drops, the conduction between the photovoltaic connector and the outside is isolated, and a better sealing effect is achieved; meanwhile, the fluororubber part has better corrosion resistance and is resistant to various acid and alkali, seawater and organic solvents; has better waterproof effect.

In addition, since the sealing member 14 is disposed at the free end of the plugging portion 12, the free end of the plugging portion 12 is disposed at the bottom of the plugging slot 20 after being plugged into the plugging slot 20 of the socket connector 2, so that the sealing member 14 is far away from the notch of the plugging slot 20, and the sealing member 14 can be located deeper due to the arrangement of the structure, so that rainwater, seawater and the like are not easy to dip, and the protection of the sealing member 14 is increased.

In this embodiment, the outer surface of the sealing member 14 further has a plurality of protrusions and concave holes opposite to the protrusions, and the nano-scale protrusions and concave holes are etched on the surface of the sealing member 14, so that a superhydrophobic effect can be achieved on the sealing member 14, and the sealing performance is enhanced.

As shown in fig. 3, another embodiment of the present utility model further discloses a socket connector 2, where the socket connector 2 is matched with the plug connector 1, and the plug connector 1 is inserted and positioned on the socket connector 2, so as to realize assembly matching of the photovoltaic connector assembly.

The socket connector 2 comprises a socket body 21, a plug groove 20 and a socket terminal through hole 22 which are arranged on the socket body 21; the socket terminal through holes 22 are communicated with the plug grooves 20; the opening direction of the insertion groove 20 coincides with the penetration direction of the socket terminal penetration hole 22.

The opening direction of the plugging slot 20 faces the plug connector 1 matched with the socket connector 2, so that the plugging slot 20 and the plugging portion 12 can be conveniently abutted.

The socket connector comprises a socket connector 1, a socket connector 2, a socket connector 20, a socket terminal through hole 22, a socket terminal through hole 13, a socket terminal through hole 22 and a socket terminal through hole 13, wherein the socket connector 20 is used for being matched with the socket connector 12, the socket terminal through hole 22 is used for accommodating a socket terminal of a socket, and the socket connector 12 is arranged in the socket connector 20, so that after the socket connector 1 and the socket connector 2 are connected and aligned, the socket terminal through hole 13 on the socket connector 12 is communicated with the socket connector 20, and the socket terminal through hole 22 is also communicated with the socket connector 20, so that the socket terminal through hole 22 is opposite to the socket terminal through hole 13. The plug terminal through holes 13 and the socket terminal through holes 22 are arranged in the socket positioning holes 22 along the socket terminals, the plug terminals are positioned in the plug terminal through holes 13, and the socket terminals are connected with the plug terminal battery after the plug connector 1 and the socket connector 2 are in plug-in alignment.

In order to achieve the mating with the plug connector 1, the socket terminal through hole 22 has an inlet 220, the inlet 220 is disposed at the bottom of the socket groove 20, the socket body 21 further has a seal positioning portion 23, the seal positioning portion 23 is disposed at the bottom of the socket groove 20, and the seal positioning portion 23 is disposed around the inlet 220. It should be noted that the bottom of the plugging slot 20 is opposite to the opening of the plugging slot 20.

In this application, the sealing element 14 is pressed and fixed between the plugging portion 12 and the bottom of the plugging slot 13, so the bottom of the plugging slot 13 is provided with the sealing element positioning portion 23 for receiving the pressing force of the sealing element 14, thereby making the sealing element 14 have a better sealing effect. The seal positioning portion 23 is actually a part of the bottom of the socket 13 during actual use, and of course, in order to achieve a better sealing effect, a ring of sealing material may be disposed on the bottom of the socket 13 for interfacing with the seal 14 in other embodiments.

In another embodiment, the sealing element 14 may be directly arranged on the sealing element positioning part 23, and after the plugging part 12 is positioned on the plugging groove 13, the plugging part 12 abuts against the sealing element 14, so that the sealing of the photovoltaic connector assembly is realized. It will be appreciated that the seal 14 may be formed on the seal retainer 23 in the manner described above.

Further, as shown in fig. 4, in order to achieve a better sealing effect, the socket body 21 further has a baffle ring 24 disposed at the edge of the inlet 220 and extending toward the socket 20, and an annular positioning groove 25 for positioning the sealing member 14 is formed between the baffle ring 24 and the inner wall of the socket 20.

Due to the arrangement of the baffle ring 24, after the sealing element 14 is inserted and positioned, the inner side of the sealing element 14 and the outer side of the baffle ring 24 also form a sealing layer, the outer side of the baffle ring 24 is the inner wall of the annular positioning groove 25, and the sealing element 14 can be tightly attached to the socket body 21 due to the arrangement of the baffle ring 24 and the annular positioning groove 25, so that the sealing effect is better realized.

It will be appreciated that the seal positioning portion 23 is disposed within the annular positioning groove 25 and is located at the bottom of the annular positioning groove 25, and the annular positioning groove 25 is exposed toward the insertion groove 20. The sealing element 14 is positioned in the annular positioning groove 25, and the sealing element 14 is abutted against both inner walls and one bottom of the annular positioning groove 25, so that the sealing element 14 is tightly attached to the annular positioning groove 25, and a better effect is achieved.

As shown in fig. 5 or 6, the present utility model also discloses a photovoltaic connector assembly, comprising: the plug connector 1, the socket connector 2 and the sealing member 14, wherein the plug connector 1 is provided with a plug-in part 12; the socket connector 2 has a plug slot 20 provided open to the plug connector 1, the plug section 12 being positioned in the plug slot 20; the seal 14 is positioned in a compressed manner between the plug section 12 and the bottom of the plug recess 20.

Since the sealing member 14 in the present embodiment is compressed and positioned between the plugging portion 12 and the bottom of the plugging slot 20, the specific sealing member 14 is clamped between the free end of the plugging portion 12 and the bottom of the plugging slot 20, and the above arrangement of the sealing member 14 can reduce the movement of the sealing member 14 during the process of mating the plug connector 1 with the receptacle connector 2, so as to avoid the failure of the sealing caused by the movement of the sealing member 14.

In a specific embodiment, the sealing member 14 may be fixed to the plug connector 1, and it is understood that the plug connector 1 includes a plug base 11, and the plug portion 12 is disposed on the plug base 11. Specifically, the sealing member 14 is formed at one end of the plugging portion 12 and is disposed at the peripheral edge of the plug terminal through hole 13. The sealing element 14 is formed on the plug section 12 by means of two-shot injection molding. The sealing element 14 is a fluororubber element or a silica gel element; the plug section 12 is a rigid plastic part.

In other embodiments, the sealing member 14 may be directly fixed to the bottom of the socket 20, however, in other embodiments, the sealing member 14 may not be fixed to both the socket 20 and the plug portion 12, and the sealing member 14 may be positioned in the socket 20 only, and after the plug connector 1 is plugged into the socket connector 2, the sealing member 14 is abutted against the bottom of the socket 20 by the plug portion 12.

The plug connector 1 further has a plug terminal penetrating hole 13 penetrating the plug base 11 and the plug-in portion 12, the plug terminal penetrating hole 13 is used for positioning the plug terminal, and the sealing member 14 is disposed at the edge of the plug terminal penetrating hole 13 and is provided with a circle.

The receptacle connector 2 has receptacle terminal bores 22 communicating with the socket slots 20, the receptacle terminal bores 22 for locating receptacle terminals, the receptacle terminal bores 22 having an inlet 220 exposed towards the socket slots 20; the groove bottom of the insertion groove 20 has a seal positioning portion 23 provided around the inlet, and the seal 14 is held in abutment against the seal positioning portion 23.

It will be appreciated that a sealing material may also be provided on the seal positioning portion 23 to better achieve the interface with the seal 14.

As shown in fig. 6, the socket body 21 further has a baffle ring 24 disposed at the edge of the inlet 220 and extending toward the socket slot 20, an annular positioning slot 25 is formed between the baffle ring 24 and the sidewall of the socket slot 20, the seal 14 is positioned in the annular positioning slot 25, the seal positioning portion 23 is disposed in the annular positioning slot 25 and is located at the bottom of the annular positioning slot 25, and the annular positioning slot 25 is exposed toward the socket slot 20.

As shown in fig. 7, another embodiment of the present utility model further discloses a photovoltaic connector assembly, comprising: a plug connector 1, a receptacle connector 2 and a seal 14;

the plug connector 1 has a plug section 12; the socket connector 2 is provided with a plug groove 20 which is arranged towards the opening of the plug connector 1 and an annular positioning groove 25 which is concavely arranged at the bottom of the plug groove 20, and the plug part 12 is provided with a free end which extends towards the plug groove 20;

and a sealing member 14 disposed at the free end of the insertion portion 12 and positioned in the annular positioning groove 25, and the sealing member 14 covers the annular positioning groove 25.

In this embodiment, the sealing member 14 is abutted against two inner walls of the annular positioning groove 25, so that positioning sealing of the sealing member 14 in the annular positioning groove 25 is realized, and the sealing member 14 may not abut against the bottom of the annular positioning groove 25.

The plug connector 1 comprises a plug base 11, wherein the plug-in part 12 is arranged on the plug base 11, and the free end of the plug-in part 12 is arranged at one end of the plug-in part 12 far away from the plug base 11;

the plug connector 1 further has a plug terminal penetration hole 13 penetrating the plug base 11 and the plug-in portion 12, and the sealing member 14 is provided at an edge of the plug terminal penetration hole 13 and is provided with a turn.

The receptacle connector 2 has a receptacle terminal penetration hole 22 communicating with the insertion groove 20, the receptacle terminal penetration hole 22 communicating with the plug terminal penetration hole 13; for better sealing, the sealing element 14 is fixed against the bottom of the annular positioning groove 25.

It should be noted that, in any of the above embodiments, when the sealing member 14 is fixed to the plugging portion 12, the sealing member 14 may be integrally injection molded on the plugging portion 12; and the sealing member 14 is provided as a fluororubber member or a silicone member.

It can be understood that, for any of the above embodiments, the plug connector 1 is provided with an elastic clamping pin 15, and the socket connector 2 is provided with a clamping pin accommodating groove 26 adapted to the elastic clamping pin 15;

the pin accommodating groove 26 is provided with a clamping table 27 facing away from the plug connector 1, and the elastic pin 15 is provided with a hook 151 abutting against the clamping table 27.

The elastic clamping foot 15 is positioned in the clamping foot accommodating groove 26 by hooking the clamping hook 151 of the elastic clamping foot 15 on the clamping table 27, and the elastic clamping foot 15 and the clamping foot accommodating groove 26 are matched to realize the positioning of the plug connector 1 and the socket connector 2 after the plug connector 1 and the socket connector 2 are plugged, so that the plug connector 1 and the socket connector 2 can be prevented from moving along the opposite direction deviating from each other, and the plug-in part 12 is enabled to be in better butt joint with the bottom of the plug-in groove 20, so that the sealing of the sealing piece 14 is realized.

Another embodiment of the present utility model further discloses a photovoltaic module, which includes the photovoltaic connector module, a plug terminal, a socket terminal, a positive cable 100 and a negative cable 200, wherein the plug terminal is disposed in the plug connector, the socket terminal is disposed in the socket connector, and the plug terminal is electrically connected with the socket terminal;

the positive cable 100 is electrically connected to the plug terminal, and the socket terminal is electrically connected to the negative cable 200.

While the foregoing is directed to embodiments of the present utility model, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. A photovoltaic connector, characterized in that: the photovoltaic connector is a plug connector and comprises a connector body, terminal perforation and a sealing piece; the sealing piece is formed on the connector body and positioned at the peripheral edge of the terminal perforation; the connector body comprises a plug base and a plug-in part arranged on the plug base; the terminal through holes are plug terminal through holes penetrating through the plug base and the plug-in connection part;

2. A photovoltaic connector, characterized in that: the photovoltaic connector is a socket connector and comprises a connector body, terminal perforation and a sealing piece; the sealing piece is formed on the connector body and positioned at the peripheral edge of the terminal perforation; the connector body comprises a socket body and a plug groove arranged on the socket body; the terminal through holes are socket terminal through holes communicated with the inserting grooves;

3. A photovoltaic connector assembly, comprising: the photovoltaic connector, receptacle connector and seal of claim 1; the photovoltaic connector is a plug connector;

4. A photovoltaic connector assembly according to claim 3, characterized in that: one end of the sealing piece, which is away from the plug connector, is abutted against the bottom of the plug groove.

5. A photovoltaic connector assembly according to claim 3, characterized in that: the socket connector is further provided with a baffle ring which is arranged at the edge of the socket terminal through hole and extends towards the inserting groove, an annular positioning groove for positioning the sealing element is formed between the baffle ring and the inner wall of the inserting groove, the annular positioning groove is exposed towards the inserting groove, and the sealing element positioning part is arranged in the annular positioning groove and is positioned at the bottom of the annular positioning groove.

6. A photovoltaic connector assembly according to claim 3, characterized in that: the plug connector is provided with an elastic clamping pin, and the socket connector is provided with a clamping pin accommodating groove matched with the elastic clamping pin;

7. The photovoltaic connector according to claim 1 or 2, characterized in that: the seal is injection molded onto the connector body.

8. The photovoltaic connector of claim 7, wherein: the sealing piece is a fluororubber piece or a silica gel piece; the connector body is a hard plastic piece.

9. The photovoltaic connector according to claim 1 or 2, characterized in that: the seal surface is provided with a number of protrusions.