Power transformation box for photovoltaic power generation

Abstract

The utility model discloses a power transformation box for photovoltaic power generation, which comprises a box body, the box body is installed on external equipment, a wire clamping mechanism is arranged on the box body, and the wire clamping mechanism comprises a wire clamping pipe, a reducing mechanism, a sliding block, a clamping spring, an abutting spring, a compensation ring, a push spring, a push disc, a thrust bearing and a threaded pipe. The wire clamping pipe is in threaded connection with the lower end face of the box body, the reducing mechanism is connected to the clamping pipe and the sliding block in a matched mode, clamping holes are formed in the sliding block, the two ends of the clamping spring are installed in the two clamping holes respectively, and the wire clamping mechanism can firmly clamp a cable and prevent the cable from loosening or slipping in the running process. It is very critical to ensure that the cable is stably connected to the power transformation box, so that the continuity of power transmission and the overall safety of the system are ensured, the design of the cable clamping mechanism also allows rapid and easy cable installation, and the maintenance efficiency and convenience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of a transformer box for photovoltaic power generation, and more specifically, to a transformer box for photovoltaic power generation. Background Art

[0002] In the current photovoltaic power generation system, the transformer box, as a key device connecting the solar panels and the power grid, undertakes the important task of converting solar energy into electrical energy. In this process, the transformer box needs to be stably and reliably connected to the external cables. However, according to the existing technology, there are certain limitations in the fixing method of the transformer box and the cable, which may affect the safety and reliability of the entire photovoltaic power generation system.

[0003] First, if the connection between the transformer box and the cable is not stable enough, the cable may become loose or fall off during use. This will not only interrupt power transmission, but may also cause electrical failures and even safety accidents in some cases, such as electrical fires or electric shocks. This unstable connection is particularly dangerous for PV systems installed outdoors, as they are often exposed to harsh environmental conditions such as strong winds, rain, and extreme temperatures.

[0004] Secondly, unstable cable connections may cause power loss and affect the efficiency of the photovoltaic power generation system. Any looseness in the cable interface may lead to increased resistance, thereby reducing the efficiency of power transmission. This is particularly important in large-scale photovoltaic power plants, because the accumulation of power losses may lead to significant energy losses. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the utility model provides a transformer box for photovoltaic power generation to solve the technical problems mentioned in the background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photovoltaic power generation transformer box, comprising a box body, which is installed on external equipment, and a wire clamping mechanism is arranged on the box body, wherein the wire clamping mechanism comprises a wire clamping tube, a diameter reducing mechanism, a sliding block, a clamping spring, a resistance spring, a compensation ring, a push spring, a push plate, a thrust bearing and a threaded tube, wherein the wire clamping tube is threadedly connected to the lower end surface of the box body, and the diameter reducing mechanism is respectively connected to the clamping tube and the sliding block, a clamping hole is provided on the sliding block, two ends of the clamping spring are respectively installed in the two clamping holes, a compensation ring is installed on the clamping spring, a resistance spring is installed on the surface of the sliding block, the clamping spring and the resistance spring are respectively pressed against the cable, a push spring is installed on the sliding block, the push plate is slidably connected to the inner wall of the wire clamping tube, a push groove is provided on the push plate, the push spring resists in the push groove, the threaded tube is threadedly connected in the wire clamping tube, and two ends of the thrust bearing resist respectively on the push plate and the threaded tube.

[0009] The utility model is further configured that a hexagonal section is coaxially provided on the threaded tube, and the hexagonal section is sleeved on the side wall of the wire clamping tube. The design of the hexagonal section ensures convenient rotation of the threaded tube.

[0010] The utility model is further configured such that the diameter-changing mechanism includes a diameter-changing platform, a plurality of the diameter-changing platforms are provided, and the plurality of the diameter-changing platforms are equidistantly installed on the inner wall of the wire clamping tube, each of the diameter-changing platforms is slidably connected to a sliding block, and the design of the diameter-changing mechanism ensures the continuity of the clamping connection.

[0011] The utility model is further configured that the sliding block is provided with a lateral bar, the diameter-changing platform is provided with a sliding groove, the lateral bar is slidably connected in the sliding groove, and the design of the lateral bar ensures the sliding of the sliding block.

[0012] The utility model is further configured such that a mounting mechanism is provided on the back of the box body, the mounting mechanism comprises a fixing plate, an insertion rod and an external tube, the external tube is mounted on the external device, the fixing plate is mounted on the back of the box body, the insertion rod is mounted on the fixing plate, the insertion rod is slidably connected in the external tube, and the design of the mounting mechanism ensures the fixation of the box body.

[0013] The utility model is further configured such that a spiral groove is provided on the side of the insertion rod, and a plurality of snap-in plates are provided on the inner wall of the external tube along the spiral groove, and the plurality of snap-in plates are respectively snapped into the spiral grooves, and the design of the spiral grooves and the snap-in plates improves the fixing effect of the insertion rod.

[0014] The utility model is further configured that a positioning rod is coaxially provided on the insertion rod, a positioning hole is opened on the external tube, the positioning rod is slidably connected in the positioning hole, and the design of the positioning rod ensures the fixing effect of the insertion rod.

[0015] The utility model is further configured that a spring is sleeved on the positioning rod, and two ends of the spring respectively abut against the external tube and the insertion rod. The design of the spring ensures the clamping stability of the clamping piece.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a photovoltaic power generation transformer box having the following

[0018] Beneficial effects:

[0019] 1. The clamping mechanism can firmly clamp the cable to prevent it from loosening or slipping during operation, which is critical to ensure that the cable is stably connected to the transformer box, thereby ensuring the continuity of power transmission and the overall safety of the system. The design of the clamping mechanism also allows quick and easy cable installation, improving maintenance efficiency and convenience.

[0020] 2. The design of the diameter reducing mechanism ensures the continuity of the cable clamping. The sliding of the lateral strip along the slide groove can ensure the movement of the sliding block along the diameter reducing platform, thereby ensuring the fixing effect of the cable.

[0021] 3. The installation mechanism ensures that the box can be stably installed in the designated position, resists various environmental factors such as wind and mechanical vibration, and allows quick and simple installation, thereby reducing the installation responsibility and reducing the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a photovoltaic power generation transformer box in the utility model;

[0023] Figure 2 It is a cross-sectional structural schematic diagram of the wire clamping mechanism in the utility model;

[0024] Figure 3 It is a structural schematic diagram of the sliding block and the clamping spring in the utility model;

[0025] Figure 4 It is a cross-sectional structural schematic diagram of the installation mechanism in the utility model;

[0026] Figure 5 It is a structural schematic diagram of the insertion rod in the utility model.

[0027] In the figure: 1. Box body; 2. Wire clamping tube; 3. Sliding block; 4. Snap-on spring; 5. Resistance spring; 6. Compensation ring; 7. Push spring; 8. Push plate; 9. Thrust bearing; 10. Threaded tube; 11. Snap-on hole; 12. Push groove; 13. Hexagonal section; 14. Variable diameter platform; 15. Lateral strip; 16. Slide groove; 17. Fixed plate; 18. Insert rod; 19. External tube; 20. Spiral groove; 21. Snap-on piece; 22. Positioning rod; 23. Positioning hole; 24. Spring. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0030] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0031] See also Figure 1-5A photovoltaic power generation transformer box includes a box body 1, which is installed on an external device. A wire clamping mechanism is arranged on the box body 1, and the wire clamping mechanism includes a wire clamping tube 2, a diameter reducing mechanism, a sliding block 3, a clamping spring 4, a contact spring 5, a compensation ring 6, a push spring 7, a push plate 8, a thrust bearing 9 and a threaded tube 10. The wire clamping tube 2 is threadedly connected to the lower end surface of the box body 1, and the diameter reducing mechanism is respectively connected to the clamping tube and the sliding block 3. A clamping hole 11 is opened on the sliding block 3, and the two ends of the clamping spring 4 are respectively installed in the two clamping holes 11. A compensation ring 6 is installed on the clamping spring 4, and a contact spring 5 is installed on the surface of the sliding block 3. The clamping spring 4 and the contact spring 5 are respectively pressed against the cable, and the sliding block 3 is installed with A push spring 7 and a push plate 8 are slidably connected to the inner wall of the wire holding tube 2. A push groove 12 is provided on the push plate 8. The push spring 7 abuts against the push groove 12. The threaded tube 10 is threadedly connected to the wire holding tube 2. Both ends of the thrust bearing 9 abut against the push plate 8 and the threaded tube 10 respectively. A hexagonal section 13 is coaxially provided on the threaded tube 10. The hexagonal section 13 is sleeved on the side wall of the wire holding tube 2. The diameter reducing mechanism includes a diameter reducing platform 14. A plurality of diameter reducing platforms 14 are provided, and the plurality of diameter reducing platforms 14 are equidistantly installed on the inner wall of the wire holding tube 2. Each diameter reducing platform 14 is slidably connected to a sliding block 3. The sliding block 3 is provided with a lateral bar 15. A slide groove 16 is provided on the diameter reducing platform 14. The lateral bar 15 is slidably connected in the slide groove 16.

[0032] In this embodiment, when fixing the cable, first pass the cable through the wire clamping tube 2, then the rotation of the threaded tube 10 can be mobilized by rotating the hexagonal section 13, and then the threaded tube 10 is pressed against the thrust bearing 9, and then the rotational thrust can be changed into a vertical thrust, and then the sliding block 3 is driven to slide under the action of the push groove 12 and the push spring 7 on the push plate 8, and then multiple sliding blocks 3 are contracted along the diameter reducing platform 14, and multiple clamping springs 4 are respectively clamped on the sliding blocks 3, so they will shrink accordingly, and their deformation is compensated by the compensation ring 6, so that the clamping spring 4 and the contact spring 5 can be pressed against the cable, thereby completing the fixing process.

[0033] See also Figure 4 and Figure 5As an implementation method of a photovoltaic power generation transformer box for the installation mechanism: a mounting mechanism is arranged on the back of the box body 1, and the mounting mechanism includes a fixing plate 17, an insertion rod 18 and an external tube 19, the external tube 19 is installed on the external equipment, the fixing plate 17 is installed on the back of the box body 1, the insertion rod 18 is installed on the fixing plate 17, the insertion rod 18 is slidably connected in the external tube 19, a spiral groove 20 is provided on the side of the insertion rod 18, and a plurality of snap-in pieces 21 are provided on the inner wall of the external tube 19 along the spiral groove 20, and the plurality of snap-in pieces 21 are respectively stuck in the spiral groove 20, a positioning rod 22 is coaxially provided on the insertion rod 18, a positioning hole 23 is provided on the external tube 19, the positioning rod 22 is slidably connected in the positioning hole 23, a spring 24 is sleeved on the positioning rod 22, and the two ends of the spring 24 respectively abut against the external tube 19 and the insertion rod 18.

[0034] More specifically, when fixing the box body 1, since the external tube 19 is installed on the external equipment, the insertion rod 18 is slidably connected in the external tube 19, so that the positioning rod 22 is inserted into the positioning hole 23. Due to the unidirectional setting of multiple snap-in plates 21, the snap-in plate can be easily clamped in the spiral groove 20, and a reverse thrust is applied by the spring 24, thereby ensuring the clamping stability of the snap-in plate 21 and the spiral groove 20, thereby completing the fixation of the box body 1.

[0035] In summary, when the overall equipment is in use or running: when fixing the cable, first pass the cable through the wire clamping tube 2, and then the rotation of the threaded tube 10 can be mobilized by rotating the hexagonal section 13, and then the threaded tube 10 is pressed against the thrust bearing 9, and then the rotational thrust can be changed into a vertical thrust, and then the sliding block 3 is driven to slide under the action of the push groove 12 and the push spring 7 on the push plate 8, and then multiple sliding blocks 3 are contracted along the diameter reducing platform 14, and multiple clamping springs 4 are respectively clamped on the sliding blocks 3, so they will shrink accordingly, and the deformation is compensated by the compensation ring 6, so that the clamping spring 4 and the contact spring 5 can be pressed against the cable, thereby completing the fixing process.

[0036] When fixing the box body 1, since the external tube 19 is installed on the external equipment, the insertion rod 18 is slidably connected in the external tube 19, so that the positioning rod 22 is inserted into the positioning hole 23. Due to the unidirectional setting of multiple snap-in plates 21, the snap-in plate can be easily clamped in the spiral groove 20, and a reverse thrust is applied by the spring 24, thereby ensuring the clamping stability of the snap-in plate 21 and the spiral groove 20, thereby completing the fixation of the box body 1.

[0037] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A photovoltaic power generation transformer box, comprising a box body (1), the box body (1) being mounted on an external device, and characterized in that: The box body (1) is provided with a wire clamping mechanism, which comprises a wire clamping tube (2), a diameter reducing mechanism, a sliding block (3), a clamping spring (4), a resisting spring (5), a compensation ring (6), a push spring (7), a push plate (8), a thrust bearing (9) and a threaded tube (10). The wire clamping tube (2) is threadedly connected to the lower end surface of the box body (1), and the diameter reducing mechanism is respectively connected to the clamping tube and the sliding block (3). The sliding block (3) is provided with a clamping hole (11), and the two ends of the clamping spring (4) are respectively installed in the two clamping holes ( 11), a compensation ring (6) is installed on the clamping spring (4), a resistance spring (5) is installed on the surface of the sliding block (3), the clamping spring (4) and the resistance spring (5) are respectively pressed against the cable, a push spring (7) is installed on the sliding block (3), a push plate (8) is slidably connected to the inner wall of the clamping tube (2), a push groove (12) is provided on the push plate (8), the push spring (7) is pressed against the push groove (12), the threaded tube (10) is threadedly connected in the clamping tube (2), and two ends of the thrust bearing (9) are respectively pressed against the push plate (8) and the threaded tube (10).

2. A photovoltaic power generation transformer box according to claim 1, characterized in that: A hexagonal section (13) is coaxially arranged on the threaded tube (10), and the hexagonal section (13) is sleeved on the side wall of the wire clamping tube (2).

3. A photovoltaic power generation transformer box according to claim 2, characterized in that: The diameter-changing mechanism comprises a diameter-changing platform (14), a plurality of the diameter-changing platforms (14) are provided, and the plurality of diameter-changing platforms (14) are respectively and equidistantly installed on the inner wall of the wire-holding tube (2), and each of the diameter-changing platforms (14) is slidably connected to a sliding block (3).

4. A photovoltaic power generation transformer box according to claim 3, characterized in that: The sliding block (3) is provided with a lateral strip (15), the diameter-changing platform (14) is provided with a sliding groove (16), and the lateral strip (15) is slidably connected in the sliding groove (16).

5. The photovoltaic power generation transformer box according to claim 1, characterized in that: The back of the box (1) is provided with a mounting mechanism, which comprises a fixing plate (17), an insertion rod (18) and an external tube (19), wherein the external tube (19) is mounted on an external device, the fixing plate (17) is mounted on the back of the box (1), the insertion rod (18) is mounted on the fixing plate (17), and the insertion rod (18) is slidably connected in the external tube (19).

6. A photovoltaic power generation transformer box according to claim 5, characterized in that: A spiral groove (20) is provided on the side surface of the insertion rod (18), and a plurality of clamping pieces (21) are provided on the inner wall of the external pipe (19) along the spiral groove (20), and the plurality of clamping pieces (21) are respectively clamped in the spiral groove (20).

7. A photovoltaic power generation transformer box according to claim 6, characterized in that: A positioning rod (22) is coaxially arranged on the insertion rod (18), a positioning hole (23) is opened on the external pipe (19), and the positioning rod (22) is slidably connected in the positioning hole (23).

8. A photovoltaic power generation transformer box according to claim 7, characterized in that: A spring (24) is sleeved on the positioning rod (22), and two ends of the spring (24) respectively abut against the external tube (19) and the insertion rod (18).

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