Mini photovoltaic connector

Abstract

A mini photovoltaic connector comprises an anode plastic main body, the anode plastic main body is of a hollow cylinder structure, the anode plastic main body comprises a first installation end located at the front end and an anode connection end located at the rear end, an anode terminal is installed in the anode plastic main body, and the rear end of the anode terminal is riveted with an anode cable; the negative electrode plastic main body is of a hollow cylinder structure, the negative electrode plastic main body comprises a second mounting end located at the rear end and a negative electrode connecting end located at the front end, a negative electrode terminal is mounted in the negative electrode connector body, and a negative electrode cable is riveted to the front end of the negative electrode terminal; wherein the first mounting end and the second mounting end are connected with each other to enable the positive terminal and the negative terminal to be connected together, a clamping ring is arranged between the first mounting end and the second mounting end, and the clamping ring is configured to lock the first mounting end and the second mounting end together. The space occupied by the connector can be effectively reduced, the clamping ring is used for providing locking force, rapid disassembly and assembly are convenient, and the test result is reliable.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of photovoltaic technology, in particular to a photovoltaic connector, a photovoltaic module and a photovoltaic system. BACKGROUND

[0002] The photovoltaic connector is an important part in the solar photovoltaic power generation system, which is used to connect multiple solar modules into a system, and is the basic element for electrical connection and signal transmission between devices, modules and systems. The existing photovoltaic connectors on the market have large outer diameter due to the limited structure, which occupies the use space of the solar module.

[0003] After years of development, the performance and reliability of the connector have been greatly improved. For example, the patent with publication number CN120709762A discloses a photovoltaic connector comprising at least two connectors connected by insertion. At least one of the two connectors is configured as a target connector, so that the first seal in the target connector is respectively screwed with the main body and the connecting piece. Since the overlapping projections of the main body and the first seal on the reference surface, and the overlapping projections of the connecting piece and the first seal on the reference surface at least partially overlap, at least part of the first seal can be regarded as being clamped between the main body and the connecting piece. The main body is connected by thread or bayonet during use. The stability of the connection is insufficient, the fixed structure size is large, and it cannot be applied to the scene with limited space. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present application is to provide a mini photovoltaic connector with stable connection.

[0005] In order to achieve the above purpose, the present application provides a mini photovoltaic connector, comprising: a positive plastic body, the positive plastic body is in a hollow cylindrical structure, the positive plastic body comprises a first mounting end at the front end and a positive connection end at the rear end, the positive plastic body is internally provided with a positive terminal, and the rear end of the positive terminal is riveted with a positive cable; a negative plastic body, the negative plastic body is in a hollow cylindrical structure, the negative plastic body comprises a second mounting end at the rear end and a negative connection end at the front end, the negative connector body is internally provided with a negative terminal, and the front end of the negative terminal is riveted with a negative cable; wherein the first mounting end and the second mounting end are interconnected to connect the positive terminal and the negative terminal together, a collar is arranged between the first mounting end and the second mounting end, and the collar is configured to lock the first mounting end and the second mounting end together.

[0006] Preferably, the first mounting end forms an inner sleeve, the second mounting end forms an outer sleeve, the second mounting end is sleeved outside the first mounting end, and the collar is sleeved outside the second mounting end.

[0007] Preferably, a plurality of annular ribs are arranged on the outer periphery of the inner sleeve, and a plurality of notches are correspondingly arranged on the outer sleeve, the collar is buckled with the exposed ribs at the notches when the first mounting end and the second mounting end are connected together.

[0008] Preferably, M-shaped sealing rings are arranged between the annular ribs.

[0009] Preferably, positioning pins are arranged on the second mounting end, and positioning holes are correspondingly arranged on the collar, the positioning holes being sleeved on the positioning pins.

[0010] Preferably, the outer periphery of the second mounting end is inwardly sunken, and the collar is sunk into the sunken part after being arranged.

[0011] Preferably, external threads are arranged on the first mounting end, an outer part of the positive cable is sleeved with a positive T-shaped ring, a positive basket and a positive nut in sequence, the positive nut is screwed on the external threads of the first mounting end and fixedly connects the positive T-shaped ring and the positive basket to the first mounting end, an inner circle diameter of the positive T-shaped ring is matched with an outer diameter of the positive cable, a small end of the positive T-shaped ring is sleeved in the positive basket, and the positive basket is sleeved in the positive nut.

[0012] Preferably, external threads are arranged on the second mounting end, an outer part of the negative cable is sleeved with a negative T-shaped ring, a negative basket and a negative nut in sequence, the negative nut is screwed on the external threads of the second mounting end and fixedly connects the negative T-shaped ring and the negative basket to the second mounting end, an inner circle diameter of the negative T-shaped ring is matched with an outer diameter of the negative cable, a small end of the negative T-shaped ring is sleeved in the negative basket, and the negative basket is sleeved in the negative nut.

[0013] Preferably, the positive basket and the negative basket respectively comprise a body, a plurality of claw strips surrounding a circle are arranged at a front end of the body, and elastic seams are arranged between the claw strips.

[0014] Preferably, inner walls of the positive nut and the negative nut are in an arc shape gradually contracting to a central axis, when the positive nut or the negative nut is screwed, an outer side of the claw strip is pressed, and an inner side of the claw strip is gradually contracted and engaged with the positive cable or the negative cable.

[0015] The mini photovoltaic connector can effectively reduce the occupied space of the connector, adopt the clasp to provide locking force, facilitate and quickly disassemble, and test results are reliable. BRIEF DESCRIPTION OF DRAWINGS

[0016] BRIEF DESCRIPTION OF DRAWINGS Figure 1 It is a perspective view of the mini photovoltaic connector according to the present application; BRIEF DESCRIPTION OF DRAWINGS Figure 2 It is a perspective view of the mini photovoltaic connector according to the present application; BRIEF DESCRIPTION OF DRAWINGS Figure 3 The detailed structure of the mini photovoltaic connector according to the present application is described. DETAILED DESCRIPTION

[0017] Hereinafter, the terms used in the specification will be briefly described, and the embodiments will be described in detail. All terms used herein, including descriptive terms or technical terms, should be interpreted as having the meaning understood by those of ordinary skill in the art. However, these terms can have different meanings according to the intention of those of ordinary skill in the art, precedents, or the emergence of new technology.

[0018] In addition, some terms can be selected by the applicant, and in this case, the meaning of the selected term will be described in detail in the detailed description of the embodiments. Therefore, the terms used herein must be defined based on the meaning of the terms along with the description in the entire specification. In addition, when a component "includes" or "comprises" an element, unless there is a specific description contrary thereto, the component can further include other elements, not excluding the other elements. In the following description, terms such as "component" and "module" indicate a unit for processing at least one function or operation, wherein the unit and module can be implemented as hardware or software or by combining hardware and software.

[0019] Embodiments will now be described more fully with reference to the accompanying drawings. Embodiments, however, can be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that the disclosure will be thorough and complete, and will fully convey the concept of the embodiments to those of ordinary skill in the art. In the following description, well-known functions or constructions are not described in detail because they would obscure the embodiments with unnecessary detail and, throughout the specification, like reference numerals refer to like elements throughout the specification.

[0020] BRIEF DESCRIPTION OF DRAWINGS Figure 1 It is a perspective view of the mini photovoltaic connector according to the present application; and Figure 2Fig. 1 is a perspective view of a mini photovoltaic connector according to the present application; the mini photovoltaic connector in this embodiment comprises a positive plastic body 5, the positive plastic body 5 is in a hollow cylindrical structure, the positive plastic body 5 comprises a first mounting end 51 at the front end and a positive connection end 52 at the rear end, a positive terminal 4 is installed in the positive plastic body 5, and a positive cable 13 is riveted to the rear end of the positive terminal 4; a negative plastic body 8, the negative plastic body 8 is in a hollow cylindrical structure, the negative plastic body 8 comprises a second mounting end 81 at the rear end and a negative connection end 82 at the front end, a negative terminal 7 is installed in the negative plastic body 2, and a negative cable 14 is riveted to the front end of the negative terminal 7; wherein the first mounting end 51 and the second mounting end 81 are interconnected to connect the positive terminal 4 and the negative terminal 7 together, and a collar 6 is arranged between the first mounting end 51 and the second mounting end 81, the collar 6 is configured to lock the first mounting end 51 and the second mounting end 81 together.

[0021] An external thread is formed on the first mounting end 51, the outside of the positive cable 13 is sequentially sleeved with a positive T-shaped ring 3, a positive basket 2 and a positive nut 1, the positive nut 1 is screwed on the external thread of the first mounting end 51 and fixedly connects the positive T-shaped ring 3 and the positive basket 2 to the first mounting end 51, the inner diameter of the positive T-shaped ring 3 is matched with the outer diameter of the positive cable 13, the small end of the positive T-shaped ring 3 is sleeved in the positive basket 2, and the positive basket 2 is sleeved in the positive nut 1.

[0022] An external thread is formed on the second mounting end 81, the outside of the negative cable 14 is sequentially sleeved with a negative T-shaped ring 10, a negative basket 11 and a negative nut 12, the negative nut 12 is screwed on the external thread of the second mounting end 81 and fixedly connects the negative T-shaped ring 10 and the negative basket 11 to the second mounting end 81, the inner diameter of the negative T-shaped ring 10 is matched with the outer diameter of the negative cable 14, the small end of the negative T-shaped ring 10 is sleeved in the negative basket 11, and the negative basket 11 is sleeved in the negative nut 12.

[0023] The positive basket 2 and the negative basket 11 each comprise a body, a plurality of claw strips surrounding a circle are arranged at the front end of the body, and a flexible joint is arranged between the claw strips. The inner wall of the positive nut 1 and the negative nut 12 is in an arc shape gradually contracting towards the central axis, when the positive nut 1 or the negative nut 12 is tightened, the outer side of the claw strip is pressed and the inner side gradually contracts inward to engage the positive cable 13 or the negative cable 14.

[0024] Fig. 2 is a perspective view of a mini photovoltaic connector according to the present application; the mini photovoltaic connector in this embodiment comprises a positive plastic body 5, the positive plastic body 5 is in a hollow cylindrical structure, the positive plastic body 5 comprises a first mounting end 51 at the front end and a positive connection end 52 at the rear end, a positive terminal 4 is installed in the positive plastic body 5, and a positive cable 13 is riveted to the rear end of the positive terminal 4; a negative plastic body 8, the negative plastic body 8 is in a hollow cylindrical structure, the negative plastic body 8 comprises a second mounting end 81 at the rear end and a negative connection end 82 at the front end, a negative terminal 7 is installed in the negative plastic body 2, and a negative cable 14 is riveted to the front end of the negative terminal 7; wherein the first mounting end 51 and the second mounting end 81 are interconnected to connect the positive terminal 4 and the negative terminal 7 together, and a collar 6 is arranged between the first mounting end 51 and the second mounting end 81, the collar 6 is configured to lock the first mounting end 51 and the second mounting end 81 together. Figure 3 Fig. 3 is a detailed structure of a mini photovoltaic connector according to the present application.

[0025] The first mounting end 51 forms an inner sleeve, the second mounting end 81 forms an outer sleeve, the second mounting end 81 is sleeved outside the first mounting end 51, and the ring 6 is sleeved outside the second mounting end 81. A plurality of annular ribs 53 are arranged on the outer periphery of the inner sleeve, and a plurality of notches 83 are correspondingly arranged on the outer sleeve, when the first mounting end 51 and the second mounting end 81 are interconnected and connected together, the ring 6 is buckled with the exposed ribs 53 at the notches 83. The M-shaped sealing ring 7 is mounted between the annular ribs 53.

[0026] The second mounting end 81 is provided with a positioning pin 84, and the ring 6 is correspondingly provided with a positioning hole 61, and the positioning hole 61 is sleeved on the positioning pin 84. The outer periphery of the second mounting end 21 is inwardly depressed, and the ring 6 is sunk into the depression after being mounted.

[0027] The mini photovoltaic connector can effectively reduce the space occupied by the connector, the novel fixing structure can reduce the overall outer diameter size by 18% compared with the traditional structure, the locking force is provided by the ring, the connector is convenient and fast to disassemble and assemble, the test result is reliable, the mechanical performance, the sealing performance and the stability can be maintained in the daily life environment, and therefore the comprehensive use cost is low.

[0028] It should be understood that the embodiments described herein should be considered in a descriptive sense only and not for purposes of limitation. Descriptions of features or aspects within each embodiment should typically be considered as being applicable to other similar features or aspects in other embodiments. While one or more embodiments have been described with reference to the figures, it will be understood by those of ordinary skill in the art that various changes in form and details can be made therein without departing from the spirit and scope as defined by the following claims.

Claims

1. A mini photovoltaic connector, characterized by, The utility model relates to a positive and negative terminal connector, which comprises: a positive plastic main body (5) in a hollow column structure, the positive plastic main body (5) comprising a first mounting end (51) at the front end and a positive connection end (52) at the rear end, the positive plastic main body (5) being provided with a positive terminal (4) mounted therein, the rear end of the positive terminal (4) being riveted with a positive cable (13); a negative plastic main body (8) in a hollow column structure, the negative plastic main body (8) comprising a second mounting end (81) at the rear end and a negative connection end (82) at the front end, the negative plastic main body (8) being provided with a negative terminal (7) mounted therein, the front end of the negative terminal (7) being riveted with a negative cable (14); wherein the first mounting end (51) and the second mounting end (81) are interconnected to connect the positive terminal (4) and the negative terminal (7) together, and a collar (6) is arranged between the first mounting end (51) and the second mounting end (81), the collar (6) being configured to lock the first mounting end (51) and the second mounting end (81) together.

2. The mini photovoltaic connector of claim 1, wherein: The first mounting end (51) forms an inner sleeve, the second mounting end (81) forms an outer sleeve, the second mounting end (81) being sleeved outside the first mounting end (51), and the collar (6) being sleeved outside the second mounting end (81).

3. The mini photovoltaic connector of claim 2, wherein: A plurality of annular ribs (53) are arranged on the outer periphery of the inner sleeve, and notches (83) are correspondingly arranged on the outer sleeve, the collar (6) being buckled with the exposed ribs (53) at the notches (83) when the first mounting end (51) and the second mounting end (81) are interconnected.

4. The mini photovoltaic connector of claim 3, wherein: M-shaped sealing rings (7) are arranged between the annular ribs (53).

5. The mini photovoltaic connector of claim 3, wherein: Positioning pins (84) are arranged on the second mounting end (81), and positioning holes (61) are correspondingly arranged on the collar (6), the positioning holes (61) being sleeved on the positioning pins (84).

6. The mini photovoltaic connector of claim 3, wherein: The outer periphery of the second mounting end (21) is inwardly sunken, and the collar (6) is sunk into the sunken part after being mounted.

7. The mini photovoltaic connector of claim 1, wherein: An external thread is formed on the first mounting end (51), a positive T-shaped ring (3), a positive basket (2) and a positive nut (1) are sequentially sleeved outside the positive cable (13), the positive nut (1) being screwed on the external thread of the first mounting end (51) and fixedly connected with the positive T-shaped ring (3) and the positive basket (2) to the first mounting end (51), the inner diameter of the positive T-shaped ring (3) being matched with the outer diameter of the positive cable (13), the small end of the positive T-shaped ring (3) being sleeved in the positive basket (2), and the positive basket (2) being sleeved in the positive nut (1).

8. The mini photovoltaic connector of claim 7, wherein: The second mounting end (81) is provided with external threads, the negative electrode cable (14) is sequentially sleeved with a negative electrode T-shaped ring (10), a negative electrode basket (11) and a negative electrode nut (12), the negative electrode nut (12) is screwed on the external threads of the second mounting end (81) and connects the negative electrode T-shaped ring (10) and the negative electrode basket (11) to the second mounting end (81), the inner diameter of the negative electrode T-shaped ring (10) is matched with the outer diameter of the negative electrode cable (14), the small end of the negative electrode T-shaped ring (10) is sleeved in the negative electrode basket (11), and the negative electrode basket (11) is sleeved in the negative electrode nut (12).

9. The mini photovoltaic connector of claim 8, wherein: The positive electrode basket (2) and the negative electrode basket (11) each comprise a body, the body is provided with a plurality of claw strips surrounding a circle at the front end, and elastic joints are arranged between the claw strips.

10. The mini photovoltaic connector of claim 9, wherein: The inner wall of the positive electrode nut (1) and the negative electrode nut (12) is in an arc shape gradually shrinking to the central axis, when the positive electrode nut (1) or the negative electrode nut (12) is screwed, the outer side of the claw strip is pressed, the inner side is gradually shrunk and engaged with the positive electrode cable (13) or the negative electrode cable (14).

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