Photovoltaic elbow connector

Abstract

The utility model relates to the technical field of electric connection, in particular to a photovoltaic elbow connector, which comprises an elbow seat, a straight head seat, a power connection element and a rotary connection element, the elbow seat comprises a wiring part and a first rotary connection part, and an elbow part is arranged between the wiring part and the first rotary connection part for connection. The straight head seat comprises an insertion part, a second rotary connection part and an insertion part, the power connection element is arranged in the elbow seat, one end extends towards the wiring part, and the other end extends towards the insertion part; a first rotary connecting clamping ring and a second rotary connecting clamping ring are arranged on the inner diameter of the rotary connecting element, the first rotary connecting clamping ring is used for being connected with the first rotary connecting part, and the second rotary connecting clamping ring is used for being connected with the second rotary connecting part. According to the utility model, the flexibility, the stability and the applicability of the connector are further improved through the characteristics of flexible rotary connection design, stable connection structure, compact integral connector structure, suitability for various scenes and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connection, in particular to a photovoltaic elbow connector. Background Art

[0002] A connector is a component that electrical engineering technicians often come into contact with. Its function is to build a communication bridge between a blocked or isolated circuit in a circuit, so that the current can flow and the circuit can achieve the intended function. An energy storage connector is a connector specifically used for connecting and transmitting electrical energy. The main functions of the energy storage connector are to provide current transmission, voltage distribution, and partial protection functions for the system battery pack. It needs to withstand high voltage and large current, and also has a sufficiently low contact resistance to ensure stable current transmission and low energy consumption, and improve the efficiency of the entire energy storage system.

[0003] A photovoltaic connector is a connector used in a solar photovoltaic power generation system, mainly for electrical connections between solar panels, between solar panels and inverters, and between inverters and distribution boxes.

[0004] In actual use, a photovoltaic connector needs to be connected by wiring to achieve electrical transmission. The structures of existing photovoltaic connectors are fixed after wiring and cannot be rotated and adjusted, which affects the use. Therefore, it is necessary to make new improvements to the structure of existing photovoltaic connectors. Summary of the Utility Model

[0005] To solve the above problems, the utility model further improves the flexibility, stability, and applicability of the connector through features such as a flexible rotary connection design, a stable connection structure, a compact overall connector structure, and suitability for multiple scenarios, namely a photovoltaic elbow connector.

[0006] The technical solution adopted by the utility model is: a photovoltaic elbow connector, including an elbow seat, a straight head seat, a power connection element, and a rotary connection element. The elbow seat includes a wiring part and a first rotary connection part, and there is a bent head connection between the wiring part and the first rotary connection part. The straight head seat includes an insertion part, a second rotary connection part, and a plug-in part. The power connection element is arranged in the elbow seat, with one end extending towards the wiring part and the other end extending towards the insertion part. The rotary connection element is arranged in a ring shape, and the inner diameter of the rotary connection element is provided with a first rotary connection snap ring and a second rotary connection snap ring. The first rotary connection snap ring is used to connect the first rotary connection part, and the second rotary connection snap ring is used to connect the second rotary connection part.

[0007] A further improvement to the above solution is that the wiring part is provided with a wiring connection end, a wiring locking sleeve, and a wiring seal. The wiring locking sleeve is used to connect the wiring connection end. The wiring seal is arranged inside the wiring connection end, and one end of the power connection element extends towards the wiring seal.

[0008] A further improvement to the above solution is that the wiring connection end is a threaded connection end. The inner circumference of the wiring locking sleeve is provided with internal threads. The wiring locking sleeve is connected to the threaded connection end through the internal threads and squeezes the wiring seal during the locking process to seal the connecting wire.

[0009] A further improvement to the above solution is that the first rotating connection part is provided with a first rotating mating snap ring. The first rotating mating snap ring is provided with a first opening and closing groove. There are multiple first opening and closing grooves, which are circumferentially and evenly distributed on the first rotating mating snap ring.

[0010] A further improvement to the above solution is that the first opening and closing groove is used to divide the first rotating mating snap ring into a fixed snap ring and an elastic snap ring. The inner diameter of the first rotating connection part is provided with a reinforcing rib. One end of the reinforcing rib is connected to the fixed snap ring, and one side of the fixed snap ring is provided with an assembly inclined surface.

[0011] A further improvement to the above solution is that the bent head extends towards the first rotating connection part with a fixed sleeve. The fixed sleeve is used for the power connection element; the insertion part is used to be inserted on the fixed sleeve, and one end of the power connection element extends into the insertion part.

[0012] A further improvement to the above solution is that the second rotating connection part includes a rotating connection platform and a second rotating mating snap ring. The second rotating mating snap ring is arranged on the outer circumference of the rotating connection platform. One side of the second rotating connection snap ring is clamped on one side of the second rotating mating snap ring.

[0013] A further improvement to the above solution is that the plugging part is provided with a mating plug. One end of the mating plug is provided with a wiring locking part.

[0014] A further improvement to the above solution is that the power connection element includes a wiring end, a bent end, and a mating end. The bent end is arranged inside the bent head. The wiring end extends towards the wiring part, and the mating end extends towards the insertion part.

[0015] A further improvement to the above solution is that the first rotating connection snap ring and the second rotating connection snap ring are arranged opposite to each other, and a rotating slot is formed between the two. Both the first rotating connection part and the second rotating connection part can be rotatably arranged in the rotating slot.

[0016] The beneficial effects of the present utility model are:

[0017] Compared with the existing photovoltaic elbow connectors, in the present utility model, the power connection element is arranged inside the elbow seat. One end of the straight seat for inserting into the elbow seat is connected to the power connection element, and after connection, it is connected through the rotating connection element. After the straight seat and the elbow seat are connected, under the action of the rotating connection element, it can rotate 360°, so that it can rotate following the cable after connection, ensuring the stability and reliability of the connector.

[0018] In the present utility model, by providing a rotating connection between the wiring part of the elbow seat and the first rotating connection part, and between the insertion part of the straight seat and the second rotating connection part, and by arranging the rotating connection element in a ring shape, a flexible rotating connection design is realized. Such a design enables the connector to rotate to adapt to the installation requirements at different angles, improving the flexibility and applicability of the connector. The inner diameter of the rotating connection element is provided with a first rotating connection snap ring and a second rotating connection snap ring for connecting the first rotating connection part and the second rotating connection part. This design can ensure that the connector maintains a stable connection state during rotation, preventing loosening or disconnection caused by rotation, and improving the stability and reliability of the connector. The power connection element is arranged inside the elbow seat, with one end extending towards the wiring part and the other end extending towards the insertion part. This design makes the overall structure of the connector more compact, reducing space occupation, and at the same time reducing the risk of damage caused by loosening of the connection components, improving the reliability of the connector in use. Due to the flexible rotating connection design and stable connection structure of the connector, it is applicable to various installation scenarios of photovoltaic devices, including cases where bending connection is required, providing a more flexible and reliable solution for the connection of photovoltaic devices. Through features such as a flexible rotating connection design, a stable connection structure, a compact overall connector structure, and applicability to multiple scenarios, the present utility model further enhances the flexibility, stability, and applicability of the connector, providing a more reliable and flexible solution for the connection of photovoltaic devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the photovoltaic elbow connector of the present utility model;

[0020] Figure 2 is Figure 1 the exploded schematic diagram of the photovoltaic elbow connector in

[0021] Figure 3 is Figure 1 the exploded schematic diagram of the photovoltaic elbow connector from another perspective in

[0022] Figure 4 is Figure 1 the exploded schematic diagram of another embodiment of the photovoltaic elbow connector in

[0023] Figure 5 isFigure 1 Partial explosion schematic diagram of the photovoltaic elbow connector.

[0024] Description of reference numerals: elbow seat 1, wiring part 11, wiring connection end 111, wiring locking sleeve 112, wiring seal 113, first rotating connection part 12, first rotating mating snap ring 121, fixed snap ring 1211, elastic snap ring 1212, first folding slot 122, reinforcing rib 123, elbow part 13, fixed sleeve 131, straight head seat 2, insertion part 21, second rotating connection part 22, rotating connection platform 221, second rotating mating snap ring 222, plugging part 23, mating plug 231, wiring locking part 232, power connection element 3, wiring end 31, bending end 32, mating end 33, rotating connection element 4, first rotating connection snap ring 41, second rotating connection snap ring 42. Detailed implementation manners

[0025] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For example Figures 1 to 5As shown in the figure, in an embodiment of the present utility model, a photovoltaic elbow connector is involved, which includes an elbow seat 1, a straight head seat 2, an electricity connection element 3 and a rotary connection element 4. The elbow seat 1 includes a wiring part 11 and a first rotary connection part 12, and a bent head part 13 is arranged between the wiring part 11 and the first rotary connection part 12 for connection. The straight head seat 2 includes an insertion part 21, a second rotary connection part 22 and a plug-in part 23. The electricity connection element 3 is arranged in the elbow seat 1, with one end extending towards the wiring part 11 and the other end extending towards the insertion part 21. The rotary connection element 4 is arranged in a ring shape, and a first rotary connection snap ring 41 and a second rotary connection snap ring 42 are arranged on the inner diameter of the rotary connection element 4. The first rotary connection snap ring 41 is used to connect the first rotary connection part 12, and the second rotary connection snap ring 42 is used to connect the second rotary connection part 22. In this embodiment, the electricity connection element 3 is arranged in the elbow seat 1, one end of the straight head seat 2 for inserting into the elbow seat 1 is connected to the electricity connection element 3, and after connection, it is connected through the rotary connection element 4, so that after the straight head seat 2 and the elbow seat 1 are connected, under the action of the rotary connection element 4, it can rotate 360°, so that it can rotate along with the cable after connection, ensuring the stability and reliability of the connector.

[0028] In this embodiment, by setting a rotary connection between the wiring part 11 and the first rotary connection part 12 of the elbow seat 1, and between the insertion part 21 and the second rotary connection part 22 of the straight head seat 2, and the rotary connection element 4 being arranged in a ring shape, a flexible rotary connection design is realized. Such a design enables the connector to rotate, adapting to the installation requirements at different angles, and improving the flexibility and applicability of the connector. The first rotary connection snap ring 41 and the second rotary connection snap ring 42 are arranged on the inner diameter of the rotary connection element 4 for connecting the first rotary connection part 12 and the second rotary connection part 22. This design can ensure that the connector maintains a stable connection state during rotation, preventing loosening or disconnection caused by rotation, and improving the stability and reliability of the connector. The electricity connection element 3 is arranged in the elbow seat 1, with one end extending towards the wiring part 11 and the other end extending towards the insertion part 21. This design makes the overall structure of the connector more compact, reduces space occupation, and at the same time reduces the risk of damage caused by loosening of the connection components, improving the reliability of the connector. Since the connector has a flexible rotary connection design and a stable connection structure, it is applicable to various installation scenarios of photovoltaic devices, including cases where bending connection is required, providing a more flexible and reliable solution for the connection of photovoltaic devices. Through features such as a flexible rotary connection design, a stable connection structure, a compact overall connector structure, and applicability to multiple scenarios, this embodiment further improves the flexibility, stability and applicability of the connector, providing a more reliable and flexible solution for the connection of photovoltaic devices.

[0029] The wiring part 11 is provided with a wiring connection terminal 111, a wiring locking sleeve 112 and a wiring seal 113. The wiring locking sleeve 112 is used to connect the wiring connection terminal 111. The wiring seal 113 is arranged inside the wiring connection terminal 111. One end of the power connection element 3 extends towards the wiring seal 113. Specifically, the wiring connection terminal 111 is a threaded connection terminal. The inner circumference of the wiring locking sleeve 112 is provided with internal threads. The wiring locking sleeve 112 is connected to the threaded connection terminal through the internal threads and squeezes the wiring seal 113 during the locking process to seal the connecting wire. In this embodiment, through the wiring connection terminal 111, the wiring locking sleeve 112 and the wiring seal 113 provided by the wiring part 11, and the design that one end of the power connection element 3 extends towards the wiring seal 113, reliable sealing of the connection terminal is achieved. The wiring locking sleeve 112 is connected to the threaded connection terminal through the internal threads and squeezes the wiring seal 113 during the locking process, ensuring reliable sealing of the connecting wire, preventing external substances such as moisture or dust from entering the interior of the connector, and improving the protection and stability of the connector. The wiring connection terminal 111 is a threaded connection terminal, and the inner circumference of the wiring locking sleeve 112 is provided with internal threads. Such a design makes the installation of the connector more convenient and fast. At the same time, it also reduces the sealing problems caused by improper installation, improving the usability and reliability of the connector. The wiring locking sleeve 112 is connected to the threaded connection terminal through the internal threads and squeezes the wiring seal 113 during the locking process, forming an effective fixing method. This design can ensure that the connection components maintain a stable connection state during use, reduce loosening caused by vibration or external forces, and improve the stability and reliability of the connector.

[0030] The first rotating connection part 12 is provided with a first rotating mating snap ring 121, and a first mating groove 122 is arranged on the first rotating mating snap ring 121. A plurality of the first mating grooves 122 are provided and are circumferentially distributed on the first rotating mating snap ring 121. Specifically, the first mating groove 122 is used to divide the first rotating mating snap ring 121 into a fixed snap ring 1211 and an elastic snap ring 1212. A reinforcing rib 123 is arranged on the inner diameter of the first rotating connection part 12, and one end of the reinforcing rib 123 is connected to the fixed snap ring 1211. An assembly inclined surface is arranged on one side of the fixed snap ring 1211. In this embodiment, through the first rotating mating snap ring 121 and the plurality of first mating grooves 122 circumferentially distributed on the first rotating connection part 12, a stable fit of the rotating connection part is achieved. The first mating groove 122 divides the first rotating mating snap ring 121 into a fixed snap ring 1211 and an elastic snap ring 1212, ensuring the stability and reliability of the rotating connection part during rotation, and improving the use stability and durability of the connector. A reinforcing rib 123 is arranged on the inner diameter of the first rotating connection part 12, and one end of the reinforcing rib 123 is connected to the fixed snap ring 1211. Such a design enhances the structural strength of the connecting component, prevents loosening or fracture caused by external vibration or impact, and improves the reliability and safety of the connector. An assembly inclined surface is arranged on one side of the fixed snap ring 1211. This design makes the assembly operation of the connector more convenient, reduces the frictional resistance during the assembly process, and also reduces the risk of damage caused by improper assembly, improving the use convenience and reliability of the connector.

[0031] The bent head part 13 extends towards the first rotating connection part 12 with a fixed sleeve 131, and the fixed sleeve 131 is used to fix the power connection element 3; the insertion part 21 is used to be inserted on the fixed sleeve 131, and one end of the power connection element 3 extends into the insertion part 21. In this embodiment, through the design that the power connection element 3 is fixed on the bent head part 13 extending towards the first rotating connection part 12 by the fixed sleeve 131, a stable connection of the connecting component is achieved. Such a design can ensure the stable position of the power connection element 3 in the connector, prevent loosening or displacement caused by external vibration or impact, and improve the stability and reliability of the connector. The insertion part 21 is used to be inserted on the fixed sleeve 131, and one end of the power connection element 3 extends into the insertion part 21. This design makes the overall structure of the connector more compact. The compact structural design can save space, reduce the volume and weight of the connector, and also reduce the risk of damage caused by loosening, improving the use convenience and reliability of the connector.

[0032] The second rotating connection part 22 includes a rotating connection platform 221 and a second rotating mating snap ring 222. The second rotating mating snap ring 222 is arranged on the outer periphery of the rotating connection platform 221, and one side of the second rotating connection snap ring 42 is clamped on one side of the second rotating mating snap ring 222. In this embodiment, through the rotating connection platform 221 and the second rotating mating snap ring 222 included in the second rotating connection part 22, a stable connection of the rotating connection part is achieved. The second rotating mating snap ring 222 is arranged on the outer periphery of the rotating connection platform 221, and one side of the second rotating connection snap ring 42 is clamped on one side of the second rotating mating snap ring 222, ensuring the stability and reliability of the rotating connection part during the rotation process, and improving the use stability and durability of the connector. The design of the second rotating mating snap ring 222 enables the connector to have a relatively smooth operation experience during rotation. This design can reduce the friction between the rotating connection components, make the rotation smoother, reduce the risk of wear and damage caused by poor rotation, and improve the use convenience and reliability of the connector.

[0033] The plugging part 23 is provided with a mating plug 231, and a wiring locking part 232 is arranged at one end of the mating plug 231. In this embodiment, by arranging the wiring locking part 232 on the mating plug 231, the safe connection of the plugging part 23 is ensured. The wiring locking part 232 can effectively fix the wiring, prevent the wiring from loosening due to external vibration or accidental pulling, and improve the stability and reliability of the connection. The design of the wiring locking part 232 makes the connection operation more convenient. During the plugging process, the wiring locking part 232 can quickly lock the wiring, reduce the complexity of the plugging operation, and improve the convenience and efficiency of the operation.

[0034] The power connection element 3 includes a wiring end 31, a bent end 32 and a mating end 33. The bent end 32 is arranged in the bent head part 13, the wiring end 31 extends towards the wiring part 11, and the mating end 33 extends towards the insertion part 21. In this embodiment, through the arrangement of the wiring end 31, the bent end 32 and the mating end 33 included in the power connection element 3, the layout of the connector is made more reasonable. The bent end 32 is arranged in the bent head part 13, the wiring end 31 extends towards the wiring part 11, and the mating end 33 extends towards the insertion part 21. Such a design makes the connection of each part compact and reasonable, and improves the structural stability and reliability of the connector. The layout design of the power connection element 3 provides an optimized connection method for the connector. The connection between each part is compact and reasonable, which helps to reduce the connection resistance, reduce the energy loss, and improve the efficiency and reliability of the connector.

[0035] The first rotary connection snap ring 41 and the second rotary connection snap ring 42 are oppositely arranged, and a rotary slot is formed therebetween. The first rotary connection portion 12 and the second rotary connection portion 22 are both rotatably arranged in the rotary slot. In this embodiment, by arranging the first rotary connection snap ring 41 and the second rotary connection snap ring 42 oppositely, a rotary slot is formed therebetween, so that the first rotary connection portion 12 and the second rotary connection portion 22 are both rotatably arranged in the rotary slot. This design enables the connector to have a more flexible rotation ability during installation and use, improving the applicability and diversity of the connector. The design of the rotary slot provides a stable connection structure for the connector. The connecting components can rotate freely in the rotary slot and are restricted by the snap rings at the same time, ensuring the stability and reliability of rotation and improving the safety and stability of the connector during use.

[0036] The above embodiments only illustrate several implementation manners of the present invention, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A photovoltaic elbow connector, characterized in that: It includes an elbow seat, a straight seat, an electrical connection element and a rotating connection element. The elbow seat includes a wiring part and a first rotating connection part. An elbow connection is arranged between the wiring part and the first rotating connection part. The straight seat includes an insertion part, a second rotating connection part and a plug-in part. The electrical connection element is arranged in the elbow seat with one end extending toward the wiring part and the other end extending toward the insertion part. The rotating connection element is arranged in a ring shape. The inner diameter of the rotating connection element is provided with a first rotating connection snap ring and a second rotating connection snap ring. The first rotating connection snap ring is used to connect the first rotating connection part, and the second rotating connection snap ring is used to connect the second rotating connection part.

2. The photovoltaic elbow connector according to claim 1, characterized in that: The wiring part is provided with a wiring connection end, a wiring locking sleeve and a wiring seal. The wiring locking sleeve is used to connect the wiring connection end. The wiring seal is arranged in the wiring connection end. One end of the power connection element extends toward the wiring seal.

3. The photovoltaic elbow connector according to claim 2, characterized in that: The wiring connection end is a threaded connection end, and the inner circumference of the wiring locking sleeve is provided with an internal thread. The wiring locking sleeve is connected to the threaded connection end through the internal thread, and during the locking process, the wiring seal is squeezed to seal the connection line.

4. The photovoltaic elbow connector according to claim 1, characterized in that: The first rotating connection portion is provided with a first rotating matching clamp ring, and the first rotating matching clamp ring is provided with a first opening and closing groove. There are a plurality of first opening and closing grooves, which are evenly distributed in an annular direction on the first rotating matching clamp ring.

5. The photovoltaic elbow connector according to claim 4, characterized in that: The first opening and closing groove is used to separate the first rotating fitting snap ring into a fixed snap ring and an elastic snap ring. The inner diameter of the first rotating connection part is provided with a reinforcing rib, one end of the reinforcing rib is connected to the fixed snap ring, and one side of the fixed snap ring is provided with an assembly bevel.

6. The photovoltaic elbow connector according to claim 1, characterized in that: The elbow portion is provided with a fixing sleeve extending toward the first rotating connection portion, and the fixing sleeve is used for fixing the power connection element; the insertion portion is used for being inserted on the fixing sleeve, and one end of the power connection element extends into the insertion portion.

7. The photovoltaic elbow connector according to claim 1, characterized in that: The second rotating connection part includes a rotating connection platform and a second rotating matching snap ring. The second rotating matching snap ring is arranged on the outer periphery of the rotating connection platform. One side of the second rotating connection snap ring is clamped on one side of the second rotating matching snap ring.

8. The photovoltaic elbow connector according to claim 1, characterized in that: The plug-in portion is provided with a butt plug connector, and one end of the butt plug connector is provided with a wiring locking portion.

9. The photovoltaic elbow connector according to claim 1, characterized in that: The power connection element comprises a connection terminal, a bending end and an inserting end, wherein the bending end is arranged in the elbow portion, the connection terminal extends toward the connection portion, and the inserting end extends toward the inserting portion.

10. The photovoltaic elbow connector according to claim 1, characterized in that: The first rotating connection clamp ring and the second rotating connection clamp ring are arranged opposite to each other, and a rotating clamping groove is formed therebetween. Both the first rotating connection part and the second rotating connection part can be rotatably arranged in the rotating clamping groove.

Images