CN222107074U

CN222107074U - Photovoltaic connector

Info

Publication number: CN222107074U
Application number: CN202420096234.XU
Authority: CN
Inventors: 孙晓冬; 刘仁静
Original assignee: Suzhou Yonghao Technology Co ltd
Current assignee: Suzhou Yonghao Technology Co ltd
Priority date: 2024-01-16
Filing date: 2024-01-16
Publication date: 2024-12-03
Anticipated expiration: 2034-01-16

Abstract

The utility model relates to a photovoltaic connector, comprising a negative photovoltaic connector body and a positive photovoltaic connector body that are plugged and sealed with each other, the negative photovoltaic connector body comprising a male plug terminal, a first plug sleeve collar is crimped between the male plug terminal and the inner wall of the negative photovoltaic connector body, one end of the male plug terminal is crimped to a first DC cable, the first DC cable is sequentially penetrated with a first waterproof plug, a first flower basket and a first nut, the first waterproof plug is crimped to the first DC cable, one end of the female plug terminal is crimped to a second DC cable, the second DC cable is sequentially penetrated with a second waterproof plug, a second flower basket and a second nut. The photovoltaic connector has the advantages of improving installation reliability, improving waterproofness, reducing costs, improving safety, and facilitating installation.

Description

Photovoltaic connector

Technical Field

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

Background

At present, photovoltaic power generation is an important green energy source, and has been rapidly developed in recent years. The photovoltaic module is the most core module of the photovoltaic power generation system, and in order to improve the maximum power generation power of unit area, the power of the module is continuously refreshed and applied.

The photovoltaic connectors are indispensable important components in the photovoltaic system, and the photovoltaic modules are required to be connected through the opposite insertion of the photovoltaic connectors, so that a photovoltaic array is formed and large voltage is output outwards. And the working voltage of the photovoltaic connector can meet the requirements of direct current 1500V and direct current 2000V so as to adapt to a larger photovoltaic system. Under the background, a novel photovoltaic connector needs to be developed, so that not only are the electric gap and the creepage distance increased, but also the structure is firmer, safer and more convenient to assemble.

For this purpose we have developed a photovoltaic connector to solve the above problems.

Disclosure of utility model

The utility model aims to overcome the defects of the prior art and provide a photovoltaic connector which has the advantages of improving the installation reliability, improving the waterproofness, reducing the cost, improving the safety, facilitating the installation and the like.

In order to achieve the aim, the technical scheme adopted by the utility model is that the photovoltaic connector comprises a cathode photovoltaic connector body and an anode photovoltaic connector body which are mutually spliced and sealed;

The negative electrode photovoltaic connector body comprises a male plug terminal, a first plug collar is crimped between the male plug terminal and the inner wall of the negative electrode photovoltaic connector body, one end of the male plug terminal is crimped to a first direct current cable, a first waterproof plug, a first flower basket and a first nut are sequentially arranged on the first direct current cable in a penetrating mode, and the first waterproof plug is crimped with the first direct current cable;

One end of the female plug terminal is connected to a second direct current cable in a crimping manner, the second direct current cable is sequentially provided with a second waterproof plug, a second flower basket and a second nut in a penetrating manner, a second plug collar is connected between the female plug terminal and the inner wall of the positive electrode photovoltaic connector body in a crimping manner, the male plug terminal is connected with the female plug terminal in an inserting manner, a second external thread is arranged at one end of the positive electrode photovoltaic connector body, the second waterproof plug and the second flower basket are connected between the second nut and the second external thread in a crimping manner, and the second waterproof plug is connected with the second direct current cable in a crimping manner;

one end of the negative pole photovoltaic connector body is provided with a first external thread, and the first nut is in compression joint with the first flower basket and the first waterproof plug between the first external threads.

Preferably, barb mechanisms uniformly distributed are arranged on the outer wall of the first plug bush clamping ring along the circumferential direction, the barb mechanisms are provided with a concave point, and the barb mechanisms are in pressure connection with the inner wall of the negative electrode photovoltaic connector body.

Preferably, a plurality of first clamping hooks are arranged at the circumference of one end of the first external thread, second clamping hooks uniformly distributed on the circumference are arranged at one end of the first nut, and the first clamping hooks are clamped with the second clamping hooks.

Preferably, a plurality of first groove-shaped clamping points and a plurality of second groove-shaped clamping points are arranged at one end of the male plug terminal, which is far away from the female plug terminal, and the first groove-shaped clamping points and the second groove-shaped clamping points are respectively in pressure connection with the first direct current cable.

Preferably, a plurality of annular protrusions are arranged on the inner wall of the first waterproof plug, and the protrusions are in pressure connection with the outer wall of the first direct-current cable.

Preferably, one end of the female plug terminal is provided with a plurality of third groove-shaped clamping points and a plurality of fourth groove-shaped clamping points, and the third groove-shaped clamping points and the fourth groove-shaped clamping points are respectively in pressure connection with the second direct current cable.

Preferably, the other end of the female plug terminal is provided with an inward concave arc rib, and the arc rib is spliced with the male plug terminal.

Preferably, the positive photovoltaic connector body is provided with a ring groove, the ring groove is arranged at the position between the third clamping hooks, a sealing ring is sleeved on the ring groove, and the sealing ring is in pressure connection with the negative photovoltaic connector body.

Preferably, a plurality of slot holes are formed in one end of the outer wall of the negative electrode photovoltaic connector body, a plurality of third clamping hooks are arranged on the positive electrode photovoltaic connector body, and the slot holes are clamped with the third clamping hooks.

Preferably, a plurality of surface cavities are arranged on the outer wall of the negative electrode photovoltaic connector body at the position between the first clamping hook and the clamping groove hole.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

1. In order to adapt to the high-power photovoltaic module in the market and use more and more widely, the surface cavity that proposes a photovoltaic connector, the surface die cavity that sets up increases electric gap, creepage distance security, can satisfy the requirement of operating voltage direct current 1500V and 2000V, reduces the materials simultaneously, does not need to increase the wall thickness, has reduced manufacturing cost.

2. The first external thread is a thin thread, so that the installation is convenient, the installation is not deviated, and the working time is saved. The first trip anticreep sets up, thereby prevents that the nut from coming off and influencing waterproof, influences photovoltaic power plant's safety. The third hook facilitates interconnection between the connector bodies and must be opened using a tool.

3. The concave points of the barb mechanism increase the elasticity and stability of the barb, prevent deformation and ensure the stability and reliability of the male plug terminal and the female plug terminal after installation.

4. Each slot-shaped snap-in allows the terminal to be installed in place without the need for an additional insulating sleeve to secure the terminal.

Drawings

Fig. 1 is an exploded view of a photovoltaic connector according to the present utility model.

Fig. 2 is a front view of a photovoltaic connector according to the present utility model.

Figure 3 is a cross-sectional view of the utility model at A-A in figure 2.

Fig. 4 is a schematic structural view of the first ferrule collar of the present utility model.

Detailed Description

The utility model will be described in further detail with reference to the accompanying drawings and specific examples.

In fig. 1 to 4, a photovoltaic connector includes a cathode photovoltaic connector body 1 and an anode photovoltaic connector body 2 that are mutually inserted and sealed. The two connector bodies are foolproof by surface signs.

The assembly of the cable and the male plug terminal of the negative-electrode photovoltaic connector body 1 is carried out, the negative-electrode photovoltaic connector body 1 comprises a male plug terminal 5, a first plug sleeve clamping ring 7 is connected between the male plug terminal 5 and the inner wall of the negative-electrode photovoltaic connector body 1 in a pressing mode, one end of the male plug terminal 5 is connected to the first direct-current cable 4 in a pressing mode, the first direct-current cable 4 is sequentially provided with a first waterproof plug 8, a first flower basket 9 and a first nut 3 in a penetrating mode, and the first waterproof plug 8 is connected with the first direct-current cable 4 in a pressing mode.

One end of the female plug terminal 6 is crimped to the second direct current cable 40, and the second direct current cable 40 is sequentially provided with a second waterproof plug 80, a second flower basket 90 and a second nut 30 in a penetrating manner, wherein the second waterproof plug 80 has the same specification and size as the first waterproof plug 8. The second basket 90 has the same specification and size as the first basket 9. The second nut 30 has the same specification and size as the first nut 3. A second plug collar 70 is pressed between the female plug terminal 6 and the inner wall of the positive electrode photovoltaic connector body 2, and the second plug collar 70 has the same specification and size as the first plug collar 7. The male plug terminal 5 is inserted into the female plug terminal 6, a second external thread 21 is arranged at one end of the positive electrode photovoltaic connector body 2, a second waterproof plug 80 and a second flower basket 90 are pressed between the second nut 30 and the second external thread 21, and the second waterproof plug 80 is pressed with a second direct current cable 40. The sealing and the waterproofing of the negative end are convenient.

The assembly of negative pole photovoltaic connector body 1, the one end department of negative pole photovoltaic connector body 1 is equipped with a first external screw thread 11, and first external screw thread 11 is the fine screw thread, and the one end circumference department of first external screw thread 11 is equipped with a plurality of first trip 12, and the one end department of first nut 3 is equipped with the second trip 31 of circumference equipartition, crimping first basket of flowers 9, first waterproof end cap 8 between first nut 3 and the first external screw thread 11. The first hook 12 is engaged with the second hook 31. The outer wall of the first plug bush retainer ring 7 is provided with barb mechanisms 14 uniformly distributed along the circumferential direction, the barb mechanisms 14 are provided with concave points 15, the elasticity and stability of terminal plug connection are improved, and the barb mechanisms 14 are in pressure connection with the inner wall of the negative-pole photovoltaic connector body 1. Only the female plug terminal 6 is different from the negative electrode photovoltaic connector body 1 in the assembly of the negative electrode photovoltaic connector body 1.

The male plug terminal 5 is provided with a plurality of first groove-shaped clamping points 516 and a plurality of second groove-shaped clamping points 518 at one end far away from the female plug terminal 6, and the first groove-shaped clamping points 516 and the second groove-shaped clamping points 518 are respectively in pressure connection with the first direct current cable 4. A plurality of third groove-shaped clamping points 617 and a plurality of fourth groove-shaped clamping points 619 are arranged at one end of the female plug-in terminal 6, an inward concave arc-shaped rib 61 is arranged at the other end of the female plug-in terminal 6, and the third groove-shaped clamping points 617 and the fourth groove-shaped clamping points 619 are respectively in pressure connection with the second direct current cable 40. The arc rib 61 is inserted into the male plug terminal 5.

In order to prevent the waterproof property of the end portion, the inner wall of the first waterproof plug 8 is provided with a plurality of annular protrusions 81, and the protrusions 81 are in pressure contact with the outer wall of the first direct current cable 4. The first nut 3 is used for pressing the first flower basket 9 on the outer wall of the first waterproof plug 8, and the protrusion 81 is used for pressing the outer wall of the first direct current cable 4 and sealing and preventing water.

The outer wall one end of negative pole photovoltaic connector body 1 is equipped with a plurality of draw-in groove holes 19, and positive pole photovoltaic connector body 2 is equipped with a annular 22, and the outer wall of negative pole photovoltaic connector body 1 is located the position department of between first trip 12 and draw-in groove hole 19 and is equipped with a plurality of surface die cavities 10, increases creepage distance, does not need to increase the wall thickness alone. The positive photovoltaic connector body 2 is provided with a plurality of third clamping hooks 13, the annular groove 22 is arranged at the position between the third clamping hooks 13, the annular groove 22 is sleeved with a sealing ring 23, and the sealing ring 23 is in pressure connection with the negative photovoltaic connector body 1. The slot 19 is clamped with the third hook 13. The negative electrode photovoltaic connector body 1 and the positive electrode photovoltaic connector body 2 are sealed while being clamped.

The male plug terminal 5 and the first plug bush collar 7 are assembled together, then the first direct current cable 4 is welded at the tail wire slot end of the male plug terminal 5 through resistance welding, then the first waterproof plug 8, the inner claw 91 of the first flower basket 9 and the first nut 3 penetrate into the first direct current cable 4 respectively, then the waterproof plug 8, the first flower basket 9 and the first nut 3 are assembled at the foolproof position respectively after being inserted from the threaded part of the tail end of the negative electrode photovoltaic connector 1, finally the first nut 3 is screwed up as required (the assembly process of the positive electrode photovoltaic connector is the same as the assembly process of the negative electrode photovoltaic connector), and the negative electrode photovoltaic connector assembly and the positive electrode photovoltaic connector assembly are inserted in an opposite mode to form an assembly array.

The foregoing is merely a specific application example of the present utility model, and the protection scope of the present utility model is not limited in any way. All technical schemes formed by equivalent transformation or equivalent substitution fall within the protection scope of the utility model.

Claims

1. The photovoltaic connector is characterized by comprising a cathode photovoltaic connector body (1) and an anode photovoltaic connector body (2) which are mutually spliced and sealed;

The negative pole photovoltaic connector body (1) comprises a male plug terminal (5), a first plug sleeve clamping ring (7) is connected between the male plug terminal (5) and the inner wall of the negative pole photovoltaic connector body (1) in a pressing mode, one end of the male plug terminal (5) is connected to a first direct current cable (4) in a pressing mode, the first direct current cable (4) is sequentially provided with a first waterproof plug (8), a first flower basket (9) and a first nut (3) in a penetrating mode, and the first waterproof plug (8) is connected with the first direct current cable (4) in a pressing mode;

The male plug terminal (5) is spliced with the female plug terminal (6), one end of the female plug terminal (6) is crimped to a second direct current cable (40), a second waterproof plug (80), a second flower basket (90) and a second nut (30) are sequentially arranged in a penetrating mode, a second plug sleeve clamping ring (70) is crimped between the female plug terminal (6) and the inner wall of the positive electrode photovoltaic connector body (2), a second external thread (21) is arranged at one end of the positive electrode photovoltaic connector body (2), and the second waterproof plug (80) and the second flower basket (90) are crimped between the second nut (30) and the second external thread (21);

One end of the negative electrode photovoltaic connector body (1) is provided with a first external thread (11), and the first basket (9) and the first waterproof plug (8) are in compression joint between the first nut (3) and the first external thread (11);

the positive photovoltaic connector body (2) is provided with a plurality of third clamping hooks (13);

The positive photovoltaic connector body (2) is provided with a ring groove (22), and the ring groove (22) is arranged at the position between the third clamping hooks (13).

2. The photovoltaic connector according to claim 1, characterized in that the outer wall of the first plug collar (7) is provided with barb mechanisms (14) uniformly distributed along the circumferential direction, the barb mechanisms (14) are provided with a concave point (15), and the barb mechanisms (14) are in pressure connection with the inner wall of the negative photovoltaic connector body (1).

3. The photovoltaic connector according to claim 2, wherein a plurality of first hooks (12) are arranged at the circumference of one end of the first external thread (11), second hooks (31) uniformly distributed circumferentially are arranged at one end of the first nut (3), and the first hooks (12) are clamped with the second hooks (31).

4. The photovoltaic connector according to claim 1, characterized in that a plurality of first groove-shaped snap points (516) and a plurality of second groove-shaped snap points (518) are provided at the end of the male plug terminal (5) remote from the female plug terminal (6), the first groove-shaped snap points (516), the second groove-shaped snap points (518) being respectively crimped with the first direct current cable (4).

5. The photovoltaic connector according to claim 1, characterized in that the inner wall of the first watertight plug (8) is provided with a plurality of annular protrusions (81), the protrusions (81) being in pressure connection with the outer wall of the first direct current cable (4).

6. The photovoltaic connector according to claim 1, characterized in that a plurality of third groove-shaped snap points (617) and a plurality of fourth groove-shaped snap points (619) are provided at one end of the female plug terminal (6), the third groove-shaped snap points (617), the fourth groove-shaped snap points (619) being respectively crimped with the second direct current cable (40).

7. The photovoltaic connector according to claim 6, characterized in that the other end of the female plug terminal (6) is provided with an inward concave arc rib (61), and the arc rib (61) is plugged with the male plug terminal (5).

8. The photovoltaic connector according to claim 1, characterized in that the ring groove (22) is sleeved with a sealing ring (23), and the sealing ring (23) is in pressure connection with the negative photovoltaic connector body (1).

9. A photovoltaic connector according to claim 3, wherein a plurality of slot holes (19) are formed at one end of the outer wall of the negative photovoltaic connector body (1), and the slot holes (19) are clamped with the third hooks (13).

10. The photovoltaic connector according to claim 9, characterized in that the outer wall of the negative photovoltaic connector body (1) is provided with a plurality of surface cavities (10) at positions between the first hooks (12) and the clamping slots (19).