High-stability connector lug

Abstract

The utility model relates to the technical field of connector lugs, and discloses a high-stability connector lug which comprises a plug body, two wiring terminals are symmetrically and fixedly installed on the inner wall of the plug body, and electrode tubes are fixedly installed on the outer surfaces, close to the head end of the plug body, of the two wiring terminals. According to the utility model, the housing enables the first inclined angle to abut against the first chamfer, drives the first elastic clamping block to be clamped into the limiting gap of the end seat, and fixes the position of the plug body, and at the same time, the housing enables the second inclined angle to abut against the second chamfer, drives the second elastic clamping block to hold the outer surface of the conductive wire, and fixes the position of the conductive wire. Through the device, the position of the plug body and the position of the conductor wire can be firmly fixed, loosening during use is avoided, the compression bolt is tightened through the screwdriver, the compression bolt enables the two wires to be respectively compressed and electrically connected with the wiring terminal, and through the device, wiring is convenient, and operation of installation personnel is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of wiring heads, in particular to a high-stability wiring head. Background Art

[0002] Photovoltaic inverters are inverters that can convert the variable DC voltage generated by photovoltaic solar panels into AC power at the mains frequency, which can be fed back to the commercial power transmission system or used for off-grid power grids. Photovoltaic inverters are one of the important system balances in photovoltaic array systems and can be used with general AC-powered equipment.

[0003] An existing high stability terminal head (publication number: CN219393900U) has at least the following disadvantages:

[0004] When the above patent is in use, the connecting tube is screwed to the photovoltaic inverter through an external thread, the power terminal of the photovoltaic inverter is electrically connected to the wiring terminal, the wiring tube is inserted into the socket of the power connection head of the photovoltaic solar panel, and the power connection terminal in the power connection head of the photovoltaic solar panel is inserted into the wiring terminal and electrically connected to the wiring terminal. When fixing the wires and connectors in the above patent, the fixing method is too cumbersome and there are too many operating steps, which is not convenient for installers to use. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a high-stability wiring head.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A high-stability terminal block comprises a plug body, wherein two terminal blocks are symmetrically fixedly installed on the inner wall of the plug body, electrode tubes are fixedly installed on the outer surfaces of the two terminal blocks near the head end of the plug body, clamping bolts are threadedly connected on the outer surfaces of the two terminal blocks near the plug body, two screw holes are provided on the circumferential outer surface of the plug body, and the two clamping bolts respectively penetrate the two screw holes, an insulating fixing block is fixedly installed on the inner wall of the plug body near the tail end, two wire tubes are fixedly installed on the outer surface of the insulating fixing block, one end of the two wire tubes is respectively connected to the two terminal blocks, the other end of the wire tubes penetrates the outer surface of the insulating fixing block, a conductive wire is inserted into the inner wall of the wire tube, a plurality of second elastic card blocks are equidistantly fixedly installed on the end surface of the tail end of the plug body, a plurality of openings are equidistantly provided on the circumferential outer surface of the plug body near the head end, and a first elastic card block is fixedly installed on the inner wall of the opening near the terminal block.

[0008] As a further solution of the utility model, the outer surface of the plug body is sleeved with a shell, the shell and the plug body are slidably installed, the inner wall of the shell is provided with a limiting groove, the circumferential outer surface of the plug body is fixedly installed with a limiting block, and the limiting block is slidably installed with the inner wall of the limiting groove.

[0009] As a further solution of the utility model, a positioning block is fixedly installed on the inner wall of the plug body close to the limiting block.

[0010] As a further solution of the utility model, an annular groove is provided on the inner wall of the shell near the tail end, a retaining ring is fixedly installed on the outer surface of the plug body near the tail end, a spring is sleeved on the outer surface of the tail end of the plug body, the spring is arranged inside the annular groove, and the spring is arranged on the side of the retaining ring near the shell.

[0011] As a further solution of the utility model, the inner wall of the shell near the tail end is provided with a second bevel angle, the inner wall of the shell near the head end is provided with a first bevel angle, the outer surface of the first elastic card block is provided with a first chamfer matching the first bevel angle, and the outer surface of the second elastic card block is provided with a second chamfer matching the second bevel angle.

[0012] As a further solution of the utility model, two through holes are symmetrically provided on the circumferential outer surface of the first end of the shell.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The first bevel angle is abutted against the first chamfer by the shell, driving the first elastic block to be inserted into the limiting notch of the end seat to fix the position of the plug body. At the same time, the second bevel angle is abutted against the second chamfer by the shell, driving the second elastic block to hold the outer surface of the conductive wire to fix the position of the conductive wire. The position of the plug body and the conductive wire can be firmly fixed by this device to avoid loosening during use. The clamping bolt is tightened by a screwdriver so that the clamping bolt clamps the two wires to the wiring terminal respectively to electrically connect them. The wiring is convenient through this device and is easy for the installer to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the high-stability wiring head proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the high-stability wiring head proposed by the utility model when viewed from above;

[0017] Figure 3 This is a schematic cross-sectional view of the high-stability wiring head proposed by the utility model;

[0018] Figure 4This is a schematic diagram of the internal structure of the high-stability wiring head proposed by the utility model;

[0019] Figure 5 This is a schematic diagram of the plug body of the high-stability wiring head proposed by the utility model;

[0020] Figure 6 A schematic diagram of a wire conduit of a high-stability terminal block proposed by the utility model;

[0021] Figure 7 A schematic diagram of the housing of the high-stability terminal block proposed by the utility model;

[0022] Figure 8 This is a schematic diagram of the limiting groove of the high-stability wiring head proposed by the utility model.

[0023] In the figure: 1, shell; 2, plug body; 3, conductive wire; 4, insulating fixing block; 5, wire tube; 6, terminal; 7, electrode tube; 8, opening; 9, first elastic block; 10, limit block; 11, limit groove; 12, positioning block; 13, second elastic block; 14, retaining ring; 15, spring; 16, annular groove; 17, through hole; 18, clamping bolt; 19, first bevel angle; 20, second bevel angle. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Reference Figure 1-Figure 8 , a high-stability terminal block, comprising a plug body 2, the inner wall of the plug body 2 is symmetrically fixedly installed with two terminal blocks 6, the outer surfaces of the two terminal blocks 6 near the head end of the plug body 2 are fixedly installed with electrode tubes 7, the outer surfaces of the two terminal blocks 6 near the plug body 2 are threadedly connected with clamping bolts 18, the circumferential outer surface of the plug body 2 is provided with two screw holes, and the two clamping bolts 18 respectively penetrate the two screw holes, an insulating fixing block 4 is fixedly installed on the inner wall of the plug body 2 near the tail end, two wire tubes 5 are fixedly installed on the outer surface of the insulating fixing block 4, one end of the two wire tubes 5 is respectively connected with the two terminal blocks 6, the other end of the wire tube 5 penetrates the outer surface of the insulating fixing block 4, and the inner wall of the wire tube 5 is inserted with a conductive wire 3, a plurality of second elastic card blocks 13 are equidistantly fixedly installed on the end surface of the tail end of the plug body 2, a plurality of openings 8 are equidistantly opened on the circumferential outer surface of the plug body 2 near the head end, and a first elastic card block 9 is fixedly installed on the inner wall of the opening 8 near the terminal 6, and two through holes 17 are symmetrically opened on the circumferential outer surface of the head end of the shell 1.

[0028] When in use, the installer first inserts the two wires inside the conductive wire 3 into the two wire tubes 5 respectively, and introduces the wires into the inside of the terminal block 6 through the wire tube 5. The installer manually moves the shell 1 backward to connect the through hole 17 on the shell 1 with the screw hole. At this time, the installer tightens the clamping bolt 18 with a screwdriver so that the clamping bolt 18 clamps the two wires with the terminal block 6 for electrical connection. The wiring is convenient through this device, which is convenient for the installer to operate.

[0029] In this embodiment, the outer surface of the plug body 2 is sleeved with a shell 1, the shell 1 and the plug body 2 are slidably installed, the inner wall of the shell 1 is provided with a limiting groove 11, and the circumferential outer surface of the plug body 2 is fixedly installed with a limiting block 10, and the limiting block 10 is slidably installed with the inner wall of the limiting groove 11.

[0030] The limiting block 10 matches the limiting groove 11 to ensure that the housing 1 can slide along the outer surface of the plug body 2 .

[0031] In this embodiment, a positioning block 12 is fixedly installed on the inner wall of the plug body 2 near the limit block 10. When connecting the connector, the installer aligns the positioning block 12 with the positioning groove on the end seat to ensure that the position of the plug body 2 is correct.

[0032] In this embodiment, an annular groove 16 is provided on the inner wall of the shell 1 near the tail end, a retaining ring 14 is fixedly installed on the outer surface of the plug body 2 near the tail end, a spring 15 is sleeved on the outer surface of the tail end of the plug body 2, the spring 15 is arranged inside the annular groove 16, the spring 15 is arranged on the side of the retaining ring 14 near the shell 1, a second bevel angle 20 is provided on the inner wall of the shell 1 near the tail end, a first bevel angle 19 is provided on the inner wall of the shell 1 near the head end, a first chamfer matching the first bevel angle 19 is provided on the outer surface of the first elastic block 9, and a second chamfer matching the second bevel angle 20 is provided on the outer surface of the second elastic block 13.

[0033] The shell 1 is moved close to the head end of the plug body 2 by the force of the spring 15, and the first bevel angle 19 is driven to move by the shell 1. The first bevel angle 19 abuts against the first chamfer, so that the first elastic block 9 is inserted into the limiting notch of the end seat to fix the position of the plug body 2. At the same time, the shell 1 drives the second bevel angle 20 to move, and the second bevel angle 20 abuts against the second chamfer, so that the second elastic block 13 hugs the outer surface of the conductive wire 3 to fix the position of the conductive wire 3. The device can firmly fix the position of the plug body 2 and the conductive wire 3 to avoid loosening during use.

[0034] It should be noted that when the utility model is in use, the installer first inserts the two wires inside the conductive wire 3 into the two wire tubes 5 respectively, and introduces the wires into the inside of the terminal 6 through the wire tubes 5. The installer manually moves the shell 1 backward to connect the through hole 17 on the shell 1 with the screw hole. At this time, the installer tightens the clamping bolt 18 with a screwdriver so that the clamping bolt 18 clamps the two wires and electrically connects them to the terminal 6 respectively. Wiring is convenient through this device, which is convenient for the installer to operate. When connecting the connector, the installer aligns the positioning block 12 with the positioning groove on the end seat, inserts the plug body 2 into the end seat, and inserts the electrode tubes 7 into the On the two wiring electrodes, the installer then manually loosens the shell 1, and the shell 1 moves close to the head end of the plug body 2 through the force of the spring 15, and the first bevel angle 19 is driven to move by the shell 1, and the first bevel angle 19 is abutted against the first chamfer, so that the first elastic block 9 is inserted into the limiting notch of the end seat to fix the position of the plug body 2. At the same time, the shell 1 drives the second bevel angle 20 to move, and the second bevel angle 20 is abutted against the second chamfer, so that the second elastic block 13 holds the outer surface of the conductive wire 3 to fix the position of the conductive wire 3. The device can firmly fix the position of the plug body 2 and the conductive wire 3 to avoid loosening during use.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high stability terminal block, comprising a plug body (2), characterized in that: Two wiring terminals (6) are symmetrically fixedly mounted on the inner wall of the plug body (2); the outer surfaces of the two wiring terminals (6) near the head end of the plug body (2) are fixedly mounted with electrode tubes (7); the outer surfaces of the two wiring terminals (6) near the plug body (2) are threadedly connected with clamping bolts (18); the circumferential outer surface of the plug body (2) is provided with two screw holes, and the two clamping bolts (18) respectively penetrate the two screw holes; the inner wall of the plug body (2) near the tail end is fixedly mounted with an insulating fixing block (4); the outer surface of the insulating fixing block (4) is Two wire tubes (5) are fixedly mounted on the surface, one end of the two wire tubes (5) is respectively connected to two wiring terminals (6), the other end of the wire tube (5) passes through the outer surface of the insulating fixed block (4), the inner wall of the wire tube (5) is inserted with a conductive wire (3), a plurality of second elastic card blocks (13) are fixedly mounted at equal intervals on the end surface of the rear end of the plug body (2), a plurality of openings (8) are opened at equal intervals on the circumferential outer surface of the plug body (2) near the head end, and a first elastic card block (9) is fixedly mounted on the inner wall of the opening (8) near the wiring terminal (6).

2. The high stability terminal according to claim 1, characterized in that: The outer surface of the plug body (2) is sleeved with a shell (1), the shell (1) and the plug body (2) are slidably mounted, the inner wall of the shell (1) is provided with a limit groove (11), a limit block (10) is fixedly mounted on the circumferential outer surface of the plug body (2), and the limit block (10) is slidably mounted on the inner wall of the limit groove (11).

3. The high stability terminal block according to claim 2, characterized in that: A positioning block (12) is fixedly mounted on the inner wall of the plug body (2) close to the limiting block (10).

4. The high stability terminal block according to claim 3, characterized in that: An annular groove (16) is provided on the inner wall of the shell (1) near the rear end, a retaining ring (14) is fixedly mounted on the outer surface of the plug body (2) near the rear end, a spring (15) is sleeved on the outer surface of the rear end of the plug body (2), the spring (15) is arranged inside the annular groove (16), and the spring (15) is arranged on a side of the retaining ring (14) near the shell (1).

5. The high stability terminal block according to claim 4, characterized in that: The inner wall of the shell (1) close to the rear end is provided with a second oblique angle (20), the inner wall of the shell (1) close to the front end is provided with a first oblique angle (19), the outer surface of the first elastic clamping block (9) is provided with a first chamfer matching the first oblique angle (19), and the outer surface of the second elastic clamping block (13) is provided with a second chamfer matching the second oblique angle (20).

6. The high stability terminal block according to claim 2, characterized in that: Two through holes (17) are symmetrically formed on the circumferential outer surface of the front end of the housing (1).

Images