Wire clamp allowing for quick connection, and photovoltaic connector

Abstract

A wire clamp allowing for quick connection, and a photovoltaic connector comprising same. The wire clamp comprises a fixed support and a clamping spring movably adapted to the fixed support. The clamping spring can slidingly turn. When the clamping spring turns outwards and is opened, a second turning track approaches and abuts against a second support portion, and slidingly turns along the second support portion during the turning, so that the turning force acting on an operating leg of the clamping spring gradually becomes smaller as the included angle between the operating leg and a contact section of the fixed support increases, thereby achieving easy turning, and achieving labor-saving turning to open the clamping spring; and when the clamping spring turns inwards and is closed, a first turning track slidingly turns along a first support portion during the turning, so that the locking force of clamping legs when closed can quickly increase as the included angle between the operating leg and the contact section decreases, thereby increasing the locking force on the end portion of a conductor, and improving the firmness of locking the end portion of the conductor.

Description

A quick-connect wire clamp and photovoltaic connector Technical Field

[0001] This invention relates to the field of wiring device technology, and more specifically, to a wire clamp and photovoltaic connector that allows for quick wiring. Background Technology

[0002] A wire clamp is a mechanical device used to connect the end of a conductor to an electrical contact, allowing the conductor end to be inserted from the insertion side and fixed in place. It mainly consists of a fixing bracket, a clamping spring (or clamping leg), and a contact section (contact plate). The fixing bracket has a contact section; the conductor end is inserted into the wire clamp and makes contact with the contact section to achieve an electrical connection.

[0003] Existing wire clamps, such as the invention patent with application number 200980154518.8, disclose a contact wire clamp and a plug connector with a contact wire clamp. The clamping spring is pivotally supported in a fixed bracket around a fixed pivot axis, and then pivots back and forth between an open pivot position and a closed pivot position to achieve clamping and releasing of the conductor end. However, the pivoting of the clamping spring around the fixed pivot axis has some problems: its flipping open and closing have the same flipping path, making flipping open relatively difficult; and the locking force is relatively small after flipping closed. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a wire clamp and photovoltaic connector that can be quickly wired to solve the above problems.

[0005] The present invention adopts the following solution:

[0006] This application provides a quick-connect wire clamp, including a fixed bracket and a clamping spring movably connected to the fixed bracket; the fixed bracket is provided with a first support part and a second support part; the clamping spring is provided with a rotating part located between the first support part and the second support part; the rotating part is provided with a first flipping trajectory that cooperates with the first support part and a second flipping trajectory that cooperates with the second support part;

[0007] When the clamping spring flips downward, it slides under the action of the first flipping trajectory and the first support to achieve a closed state; when the clamping spring flips upward, it slides under the action of the second flipping trajectory and the second support to achieve an open state.

[0008] Furthermore, the clamping spring has rotating portions formed on both sides; the fixed bracket has hollow support ears formed on it, and the rotating portions are assembled inside the support ears; the upper part of the support ears is configured as the first support portion; and the lower part of the support ears is configured as the second support portion.

[0009] Furthermore, the rotating part has an upper-opening movable groove, which is generally hook-shaped; the inner wall surface of the movable groove near the wire insertion side is configured as the first flipping trajectory, and the outer wall surface is configured as the second flipping trajectory.

[0010] Furthermore, the clamping spring includes two clamping legs arranged side by side; a protrusion is provided on the contact section of the fixing bracket; when the clamping spring is in the closed state, the protrusion is positioned between the two clamping legs.

[0011] Furthermore, it also includes a handle disposed on the operating leg of the clamping spring, the handle having two fixing parts; wherein the clamping leg away from the wire insertion side has a first bending part and a second bending part; the two fixing parts are respectively disposed in the first bending part and the second bending part.

[0012] Furthermore, the fixed bracket is provided with a first locking part, and the clamping spring is provided with a second locking part that can lock with the first locking part, so that the clamping spring can be locked on the fixed bracket when it is flipped into the closed state.

[0013] Furthermore, the clamping spring and the fixing bracket are integrally stamped and bent from a metal plate.

[0014] A photovoltaic connector includes a male terminal and a female terminal capable of quick docking to achieve electrical connection, characterized in that the male terminal and the female terminal are provided with wire clamps as described in any one of claims 1-7.

[0015] Furthermore, both the male end and the female end include an outer shell, a docking body connected to the outer shell, and an inner core body for installing the wire clamp inside the outer shell; the two docking bodies can be movably engaged; one of the docking bodies is provided with an elastic support arm, which can be used to release the engagement of the two docking bodies.

[0016] Furthermore, it also includes a plug-in safety lock that covers the two docking bodies, which is used to cover the elastic support arm, and has unlocking ports on both sides along the docking direction of the docking bodies.

[0017] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0018] This invention provides a wire clamp for quick wiring, comprising a fixed bracket and a clamping spring movably connected to the fixed bracket. The clamping spring does not have a fixed pivot during rotation and can slide during rotation. When the clamping spring is rotated outwards to open, a second rotation trajectory approaches and abuts against a second support portion. During rotation, the second support portion slides and rotates, so that the rotation force acting on the operating leg of the clamping spring gradually decreases as the angle between the operating leg and the contact portion of the fixed bracket increases, achieving easy rotation and effortless opening of the clamping spring. When the clamping spring is rotated inwards to close, a first support portion approaches and abuts against a first rotation trajectory and slides and rotates along the first support portion during rotation, so that the locking force of the clamping leg when closed increases rapidly as the angle between the operating leg and the contact portion decreases, thereby increasing the locking force on the conductor end and improving the firmness of the conductor end locking. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 is a schematic diagram of the clamping spring of a quick-connect wire clamp in the closed state according to an embodiment of the present invention.

[0021] Figure 2 is a front view of a wire clamp with its clamping spring in the open state according to an embodiment of the present invention.

[0022] Figure 3 is a schematic diagram of the clamping spring of a quick-connect wire clamp in the open state according to an embodiment of the present invention.

[0023] Figure 4 is a structural schematic diagram of a fixing bracket for a wire clamp that allows for quick wiring according to an embodiment of the present invention;

[0024] Figure 5 is a schematic diagram of the cross-sectional structure of Figure 4;

[0025] Figure 6 is a schematic diagram of the front structure of the clamping spring of a wire clamp that can be quickly connected according to an embodiment of the present invention;

[0026] Figure 7 is a schematic diagram of the front structure of the clamping spring of a wire clamp that can quickly connect wires according to an embodiment of the present invention.

[0027] Figure 8 is a schematic diagram of the clamping spring of a wire clamp that allows for quick wiring according to an embodiment of the present invention;

[0028] Figure 9 is a schematic diagram of the front assembly structure of a wire clamp with quick wiring according to an embodiment of the present invention, including the handle.

[0029] Figure 10 is a schematic diagram of the assembly structure of a quick-connect wire clamp according to an embodiment of the present invention, including a handle.

[0030] Figure 11 is a schematic diagram of the handle structure of a wire clamp that can quickly connect wires according to an embodiment of the present invention;

[0031] Figure 12 is a schematic diagram of the assembly structure of the handle and clamping spring of a wire clamp that can quickly connect wires according to an embodiment of the present invention.

[0032] Figure 13 is a schematic diagram of the exploded structure of the female end of a photovoltaic connector according to an embodiment of the present invention;

[0033] Figure 14 is a schematic diagram of the exploded structure of the male terminal of a photovoltaic connector according to an embodiment of the present invention;

[0034] Figure 15 is a schematic diagram of the main structure of the male terminal of a photovoltaic connector according to an embodiment of the present invention;

[0035] Figure 16 is a schematic diagram of the main structure of the female end of a photovoltaic connector according to an embodiment of the present invention;

[0036] Figure 17 is a cross-sectional structural diagram of a photovoltaic connector according to an embodiment of the present invention;

[0037] Figure 18 is a schematic diagram of the cross-sectional structure of a photovoltaic connector according to an embodiment of the present invention;

[0038] Figure 19 is a partially enlarged structural schematic diagram of a photovoltaic connector according to an embodiment of the present invention;

[0039] Icons: 1. Fixed bracket; 2. Clamping spring; 3. Contact section; 4. Clamping leg; 5. Operating leg; 6. Movable groove; 7. First flip track; 8. Second flip track; 9. Rotating part; 10. Notch; 11. Support ear; 12. First support part; 13. Second support part; 14. Handle; 15. First bending part; 16. Second bending part; 17. Fixed part; 18. Limiting protrusion; 19. First locking part; 20. Second locking part; 21. Protrusion; 22. Outer shell; 23. Inner core body; 24. Male end pin; 25. Female end socket; 26. Male end docking body; 27. Female end docking body; 28. Elastic locking arm; 29. ​​Locking part; 30. Locking groove; 31. First limiting surface; 32. Second limiting surface; 33. Elastic support arm; 34. Locking tooth; 35. O-ring seal; 36. Sealing ring; 37. Interlocking safety lock; 38. Unlocking port; 39. Male end; 40. Female end; 41. Wire; 100. Insertion side; 100. Wire clamp. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example

[0042] Referring to Figures 1 to 12, this embodiment provides a wire clamp for quick wiring, including a fixed bracket 1 and a clamping spring 2 movably connected to the fixed bracket; the fixed bracket 1 is provided with a first support part 12 and a second support part 13; the clamping spring 2 is provided with a rotating part 9 positioned between the first support part 12 and the second support part 13; the rotating part 9 is provided with a first flipping trajectory 7 that cooperates with the first support part 12 and a second flipping trajectory 8 that cooperates with the second support part 13;

[0043] When the clamping spring 2 flips downward, it slides under the action of the first flipping trajectory 7 and the first support part 12 to achieve a closed state; when the clamping spring 2 flips upward, it slides under the action of the second flipping trajectory 8 and the second support part 13 to achieve an open state.

[0044] In this embodiment, the clamping spring 2 and the fixing bracket 1 are integrally stamped and bent from a metal plate. Specifically, as shown in Figures 6 to 8, the two sides of the operating leg 5 are stamped and bent downwards to form the rotating part 9. The movable groove 6 is disposed on the side of the rotating part 9 near the insertion side E, and a notch 10 is provided at the upper end of the movable groove 6 away from the insertion side E, making the rotating part 9 resemble a hook. In this embodiment, the inner and outer wall surfaces of the movable groove 6 near the insertion side E form the first flipping trajectory 7 and the second flipping trajectory 8. As shown in Figures 4 and 5, the fixing bracket 1 is connected to the two side walls of the contact section 3 and bent outwards to form hollow support ears 11, which can be assembled with the movable groove 6 through the notch 10. The upper part of the support ear 11 is constructed as the first support part 12 that can cooperate with the first flipping trajectory 7; the lower part of the support ear 11 is constructed as the second support part 13 that can cooperate with the second flipping trajectory 8.

[0045] As shown in Figures 1 to 3, the clamping spring 2 does not have a fixed pivot axis during the flipping process due to the arrangement of the first flipping trajectory 7, the second flipping trajectory 8, the first support part 12, and the second support part 13. Specifically, when the clamping spring 2 flips outward to open, the second flipping trajectory 8 approaches and abuts against the second support part 13, while the first support part 12 moves away from the first flipping trajectory 7 within the movable groove 6. At this time, during the flipping process, the second flipping trajectory 8 slides along the second support part 13, that is, the second flipping trajectory 8 slides on the second support part 13, simultaneously realizing the flipping action of the clamping spring 2. This makes the flipping force of the operating leg 5 acting on the clamping spring 2 gradually lighter as the angle between the operating leg 5 and the contact section 3 of the fixed bracket 1 increases. That is, after the operating leg is initially flipped up in the closed state, it can be easily flipped later, realizing effortless flipping to open the clamping spring 2. When the clamping spring 2 flips inward to close, the first support part 12 approaches and abuts against the first flipping trajectory 7 in the movable groove 6; the second flipping trajectory 8 moves away from the second support part 13. At this time, during the flipping process, the first flipping trajectory 7 slides along the first support part 12, that is, the first flipping trajectory 7 slides on the first support part 12, and simultaneously realizes the flipping action of the clamping spring 2, so that the locking force of the clamping leg 4 when closed can increase rapidly as the angle between the operating leg 5 and the contact section 3 decreases, thereby increasing the locking force on the conductor end and improving the firmness of locking the conductor end.

[0046] In this embodiment, as shown in Figures 8 to 12, the clamping spring 2 includes two clamping legs 4 arranged side by side, and a handle 14 attached to the operating leg 5. The clamping leg 4, away from the insertion side E, is bent into a first bent portion 15 away from the insertion side E and a second bent portion 16 close to the insertion side E; the first bent portion 15 and the second bent portion 16 bend in opposite directions. The handle 14 is provided with two fixing portions 17; the two fixing portions 17 are respectively located within the first bent portion 15 and the second bent portion 16. Specifically, the two fixing portions 17 extend from a lower sidewall of the handle 14 along the width direction, and can be inserted into the first bent portion 15 and the second bent portion 16 from one side; and the handle 14, away from the sidewall and on one of its fixing portions 17, is provided with limiting protrusions 18 for limiting the clamping leg 4 in the width direction, preventing the clamping spring 2 from detaching from the handle 14.

[0047] Of course, in this embodiment, the fixed bracket 1 is provided with a first locking part 19, and the clamping spring 2 is provided with a second locking part 20 that can lock with the first locking part 19, so that the clamping spring 2 can be locked on the fixed bracket 1 when it is flipped and in the closed state.

[0048] Preferably, as shown in FIG19, a protrusion 21 is provided on the contact section 3; when the clamping spring 2 is flipped and in the closed state, the protrusion 21 is placed between the two clamping legs 4; so that after the wire 41 is inserted into the wire clamp and the two clamping legs 4 are pressed down, the wire 41 bulges and deforms between the two clamping legs 4, so that the wire 41 placed between the two clamping legs is in a wavy curve shape, so that the wire 41 has a greater combined holding force and can withstand a greater axial pull force, thereby increasing the anti-loosening friction of the wire 41.

[0049] The present invention also provides a photovoltaic connector, including a male terminal 39 and a female terminal 40 that can be quickly connected to achieve electrical connection, wherein the male terminal 39 and the female terminal 40 are provided with the wire clamp 100.

[0050] Specifically, as shown in Figures 13 to 18, both the male end 39 and the female end 40 include a housing 22, a mating body connected to the housing 22, and an inner core body 23 for mounting the wire clamp 100 within the housing. The male end 39 has a male end pin 24 on its fixing bracket 1, and the female end 40 has a female end socket 25 on its fixing bracket 1 for electrical connection with the male end pin 24. After the male end 39 and the female end 40 are mated, the male end pin 24 is inserted into the female end socket 25 to achieve an electrical connection between the two wires on the wire clamp 100 of the male end 39 and the female end 40.

[0051] In this embodiment, the two docking bodies can be movably engaged. The female end 40 docking body 27 is provided with an elastic engaging arm 28 whose front end is a engaging portion 29. The male end 39 docking body 26 is provided with a engaging groove 30. The elastic engaging arm 28 can pass through the engaging groove 30, thereby causing the engaging portion 29 to engage with the engaging end face of the engaging groove 30. The female end 40 docking body 27 is provided with a first limiting surface 31, and the end face of the engaging groove 30 is a second limiting surface 32 adapted to the first limiting surface 31. When the first limiting surface and the second limiting surface 32 abut, the engaging portion 29 engages precisely with the engaging end face. The male end 39 is provided with an elastic support arm 33 on the docking body 26. Its front end is placed on the locking part 29. When pressure is applied to the elastic arm, it can act on the locking part 29, so that the elastic locking arm 28 undergoes elastic deformation, so that the locking part 29 moves away from the locking end face, thereby releasing the locking and realizing the separation of the two docking bodies.

[0052] In this embodiment, to prevent the wires at both ends from being easily pulled out after the male end 39 and the female end 40 are connected, a locking tooth 34 is provided between the outer shell 22 and the connecting body. During the process of the outer shell 22 being screwed into the connecting body, the teeth of the locking tooth 34 retract towards the axis to lock the wire and prevent it from being pulled out. At the same time, in order to achieve a seal on the internal wire clamp 100 and avoid the risk of short circuit due to water ingress, an O-ring seal 35 is provided on the connecting body to achieve a seal between the outer shell 22 and the connecting body. A sealing ring 36 is provided inside the locking tooth 34 and fitted onto the wire. Under the pressure of the outer shell 22 against the wire clamp 100 and the pressure of the teeth of the locking tooth 34 retracting towards the axis, the seal between the outer shell 22 and the wire is achieved.

[0053] Preferably, the assembly also includes a locking safety lock 37 covering the two docking bodies. This lock covers the elastic support arm 33 to prevent accidental pressure on the elastic support arm 33 from causing the male end 39 and the female end 40 to disengage and detach. The locking safety lock 37 has unlocking ports 38 on both sides along the docking direction of the docking bodies. These unlocking ports 38 allow a screwdriver to be inserted to press the elastic support arm 33, thereby disengaging the male end 39 and the female end 40 and facilitating their separation.

[0054] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions that fall within the scope of the present invention are within the scope of protection of the present invention.

[0055] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0057] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0058] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

Claims

1. A quick wiring terminal, comprising a fixed support and a clamping spring movably connected to the fixed support; characterized in that: The fixed bracket is provided with a first support part and a second support part; the clamping spring is provided with a rotating part placed between the first support part and the second support part; the rotating part is provided with a first flipping trajectory that cooperates with the first support part and a second flipping trajectory that cooperates with the second support part; When the clamping spring flips downward, it slides and flips under the action of the first flipping trajectory and the first support to achieve a closed state. When the clamping spring flips upward, it slides and flips under the action of the second flipping trajectory and the second support to achieve the open state.

2. The quick-wireable clamp of claim 1, wherein, The clamping spring has rotating portions formed on both sides; the fixed bracket has hollow support ears formed on it, and the rotating portions are assembled inside the support ears; the upper part of the support ears is configured as the first support portion; and the lower part of the support ears is configured as the second support portion.

3. The quick-wireable clamp of claim 2, wherein, The rotating part has an open movable groove, which is generally hook-shaped; the inner wall surface of the movable groove near the wire insertion side is configured as the first flipping trajectory, and the outer wall surface is configured as the second flipping trajectory.

4. The quickwireable clamp of claim 1, wherein, The clamping spring includes two clamping legs arranged side by side; the contact section of the fixed bracket is provided with a protrusion; when the clamping spring is in the closed state, the protrusion is positioned between the two clamping legs.

5. The quick-wireable clamp of claim 4, wherein, It also includes a handle disposed on the operating leg of the clamping spring, the handle having two fixing parts; wherein the clamping leg away from the wire insertion side has a first bending part and a second bending part; the two fixing parts are respectively disposed in the first bending part and the second bending part.

6. The quickwireable clamp of claim 1, wherein, The fixed bracket is provided with a first locking part, and the clamping spring is provided with a second locking part that can lock with the first locking part, so that the clamping spring can be locked on the fixed bracket when it is flipped into the closed state.

7. The quick-wire connector of any of claims 1-6, wherein, The clamping spring and the fixing bracket are integrally stamped and bent from a metal plate.

8. A photovoltaic connector comprising a male end and a female end capable of quick mating to achieve electrical connection, characterized in that, The male end and the female end are provided with wire clamps as described in any one of claims 1-7.

9. The photovoltaic connector of claim 8, wherein, Both the male end and the female end include an outer shell, a docking body connected to the outer shell, and an inner core body for installing the wire clamp inside the outer shell; the two docking bodies can be movably engaged; one of the docking bodies is provided with an elastic support arm, which can be used to release the engagement of the two docking bodies.

10. The photovoltaic connector of claim 9, wherein, It also includes a plug-in safety lock that covers the two docking bodies, which is used to cover the elastic support arm, and has an unlocking port on both sides along the docking direction of the docking bodies.

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