Photovoltaic grid-connected cabinet with wire harness fixing function

Abstract

The utility model relates to a photovoltaic grid-connected cabinet with a wire harness fixing function, which is applied to the field of electric power equipment and comprises a photovoltaic grid-connected cabinet body, an electric power module is arranged at the inner end of the photovoltaic grid-connected cabinet body and externally connected with a plurality of cable bodies, and wire binding ribbons are bound at the outer ends of the cable bodies. Thickening accessory strips are fixedly connected to the upper end and the lower end of the wire binding band, a plurality of groove clamping positions are formed in the upper end and the lower end of each thickening accessory strip, a plurality of arc-shaped wire clamping rings are installed at the outer end of the wire binding band, U-shaped fixing blocks are fixedly connected to the rear ends of the arc-shaped wire clamping rings, and clamping blocks are installed at the outer end of the wire binding band. In the photovoltaic grid-connected cabinet with the wire harness fixing effect, the plurality of cable bodies are bound at the inner side positions of the wire binding ribbons in a uniform force manner for limiting, so that the limiting force generated by the wire binding ribbons is effectively dispersed, the problem of stress concentration is avoided, and the operation performance of the cable bodies is guaranteed.

Description

Technical Field

[0001] The utility model relates to a photovoltaic grid-connected cabinet with a wire harness fixing function, in particular to a photovoltaic grid-connected cabinet with a wire harness fixing function applied to the field of power equipment. Background Art

[0002] Compared with ground centralized photovoltaic power stations, distributed photovoltaic power stations are relatively small in scale but more dispersed. Generally, the grid-connected voltage level is 380V. In this case of low-voltage grid connection, generally less is involved in secondary microcomputer protection. Usually, the microcomputer protection used in distributed photovoltaic power stations is an anti-islanding protection device, which is installed in the grid-connected cabinet. Therefore, the use of distributed grid-connected cabinets is relatively widespread in distributed photovoltaic power stations.

[0003] The specification of Chinese Patent CN220172705U discloses a photovoltaic grid-connected cabinet, including a cabinet body, which is connected by an inner cabinet and an outer cabinet from the inside to the outside. There is an interlayer between the inner cabinet and the outer cabinet. A plurality of lower ventilation holes are provided on three lower surfaces of the outer shell in the outer cabinet, which can cool the electrical components in the inner shell in time to avoid damage to the high-temperature vulnerable electrical components due to too high temperature in the inner cavity of the inner shell.

[0004] The specification of Chinese Patent CN220066419U discloses a photovoltaic grid-connected cabinet, including a cabinet body, which is set in a U shape. A raised layer is fixedly connected to the side wall of the cabinet body, and a chute is provided on the surface of the raised layer. In the utility model, the positioning column is inserted into the positioning port through a spring, which can fix the upper frame body or the lower frame body. By sliding the upper frame body and the lower frame body up and down, the operation space is increased, which is convenient for overhauling the components inside the cabinet body.

[0005] A number of cable bodies are arranged inside the photovoltaic grid-connected cabinet to connect and supply power to the power modules therein. The cable bodies need to be bundled, classified and limited by binding straps to avoid their scattered placement. However, in the unified bundling method of binding straps, if the binding straps are tied too tightly, it may cause stress concentration in the connecting wires inside the cable body. Being in this state for a long time may damage the insulating layer of the cable body and even affect the transmission performance of the cable body. For example, in some vibrating environments, the stressed parts are more likely to be damaged. Therefore, it is necessary to design a photovoltaic grid-connected cabinet with a wire harness fixing function to solve the above problems. Summary of the Utility Model

[0006] Aiming at the above-mentioned prior art, the technical problem to be solved by the utility model is that in the unified bundling method of binding straps, if the binding straps are tied too tightly, it may cause stress concentration in the connecting wires inside the cable body. Being in this state for a long time may damage the insulating layer of the cable body.

[0007] To solve the above problems, the present utility model provides a photovoltaic grid-connected cabinet with a wire harness fixing function, which includes a photovoltaic grid-connected cabinet body. A power module is arranged at the inner end of the photovoltaic grid-connected cabinet body. A plurality of cable bodies are externally connected to the power module. Binding tie straps are bound to the outer ends of the plurality of cable bodies. Thickened fitting strips are fixedly connected to both the upper and lower ends of the binding tie straps. A plurality of groove positions are opened at both the upper and lower ends of the thickened fitting strips. The plurality of groove positions are symmetrically arranged up and down. A plurality of arc-shaped clamping coils are installed at the outer end of the binding tie strap. A U-shaped fixing block is fixedly connected to the rear end of the arc-shaped clamping coil. The U-shaped fixing block is engaged with the groove position. A clamping block is installed at the outer end of the binding tie strap.

[0008] In the above photovoltaic grid-connected cabinet with a wire harness fixing function, this solution limits a plurality of cable bodies to be evenly bound inside the binding tie strap, effectively dispersing the limiting force generated by the binding tie strap, avoiding the problem of stress concentration, and being beneficial to ensuring the operating performance of the cable bodies.

[0009] As a further improvement of the present application, the clamping block is engaged with the binding tie strap, and a plurality of cable bodies are respectively engaged into the corresponding arc-shaped clamping coils.

[0010] As a further improvement of the present application, a plurality of silicone convex clamping columns are fixedly connected to the inner end of the arc-shaped clamping coil, and the plurality of silicone convex clamping columns are in contact with the outer side wall of the cable body.

[0011] As a further improvement of the present application, an elastic cord segment is fixedly connected between the U-shaped fixing block and the arc-shaped clamping coil, and the elastic cord segment cooperates with the groove position.

[0012] As another improvement of the present application, a plurality of heat dissipation round holes are opened at the outer end of the arc-shaped clamping coil, and the plurality of heat dissipation round holes are evenly distributed.

[0013] As a supplement to another improvement of the present application, a shock-absorbing spring is fixedly connected to the rear end of the clamping block, and a connecting block piece is fixedly connected to the end of the shock-absorbing spring away from the clamping block.

[0014] As a supplement to another improvement of the present application, a magnetic connection surface is fixedly connected to the end of the connecting block piece away from the clamping block, and the magnetic connection surface cooperates with the inner side wall of the photovoltaic grid-connected cabinet body.

[0015] In summary, according to the actual number of cable bodies in the wire harness, the arc-shaped clamping coils are sequentially clamped on the outer side of the binding tie, the U-shaped fixing blocks behind the arc-shaped clamping coils are clamped in the corresponding pair of groove positions for limiting, and the corresponding cable bodies are inserted into the corresponding arc-shaped clamping coils for fixing. The multiple cable bodies are classified and placed in the arc-shaped clamping coils. After all the cable bodies are clamped, the binding tie can be integrally looped and clamped with the clamping block, so that the multiple cable bodies are evenly bound and limited at the inner side position of the binding tie, effectively dispersing the limiting force generated by the binding tie and avoiding the problem of stress concentration, which is beneficial to ensuring the operating performance of the cable bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Isometric view of the photovoltaic grid-connected cabinet body according to the first embodiment of the present application;

[0017] Figure 2 Isometric view of the binding tie according to the first embodiment of the present application;

[0018] Figure 3 Enlarged view of the arc-shaped clamping coil according to the first embodiment of the present application;

[0019] Figure 4 Installation state diagram of the arc-shaped clamping coil according to the first embodiment of the present application;

[0020] Figure 5 Wire fixing state diagram of the arc-shaped clamping coil according to the first embodiment of the present application;

[0021] Figure 6 Schematic diagram of the heat dissipation round holes according to the first embodiment of the present application;

[0022] Figure 7 Diagram of the connecting block piece according to the second embodiment of the present application.

[0023] Explanation of the reference numerals in the figures:

[0024] 1. Photovoltaic grid-connected cabinet body; 2. Binding tie; 3. Clamping block; 4. Groove position; 5. Arc-shaped clamping coil; 6. U-shaped fixing block; 7. Elastic rope section; 8. Silicone convex clamping column; 9. Cable body; 10. Thickened fitting strip; 11. Heat dissipation round hole; 12. Shock-absorbing spring; 13. Connecting block piece; 14. Magnetic connection surface. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following describes in detail the two embodiments of the present application with reference to the accompanying drawings.

[0026] The first embodiment:

[0027] Figures 1-5Disclosed is a photovoltaic grid-connected cabinet with a function of fixing a wire harness, including a photovoltaic grid-connected cabinet body 1. A power module is arranged at the inner end of the photovoltaic grid-connected cabinet body 1. A plurality of cable bodies 9 are externally connected to the power module. Binding tie straps 2 are bound to the outer ends of the plurality of cable bodies 9. Thickened fitting strips 10 are fixedly connected to both the upper and lower ends of the binding tie straps 2. A plurality of groove positions 4 are opened at both the upper and lower ends of the thickened fitting strips 10. The plurality of groove positions 4 are symmetrically arranged up and down. A plurality of arc-shaped clamping coils 5 are installed at the outer end of the binding tie straps 2. A U-shaped fixing block 6 is fixedly connected to the rear end of the arc-shaped clamping coil 5. The U-shaped fixing block 6 is engaged with the groove position 4. A clamping block 3 is installed at the outer end of the binding tie straps 2.

[0028] Figures 1-5 It is shown that the clamping block 3 is engaged with the binding tie straps 2. The plurality of cable bodies 9 are respectively clamped into the corresponding arc-shaped clamping coils 5. A plurality of silica gel convex clamping columns 8 are fixedly connected to the inner end of the arc-shaped clamping coils 5. The plurality of silica gel convex clamping columns 8 are in contact with the outer side wall of the cable body 9. An elastic cord segment 7 is fixedly connected between the U-shaped fixing block 6 and the arc-shaped clamping coil 5. The elastic cord segment 7 cooperates with the groove position 4. A plurality of heat dissipation round holes 11 are opened at the outer end of the arc-shaped clamping coils 5. The plurality of heat dissipation round holes 11 are evenly distributed.

[0029] Figures 1-5 It is shown that in this solution, thickened fitting strips 10 are arranged on both the upper and lower sides of the traditional tie strap. The groove positions 4 above and below the thickened fitting strips 10 can be used to accommodate the U-shaped fixing block 6 at the rear side of the arc-shaped clamping coil 5. According to the actual number of cable bodies 9 in the wire harness, the arc-shaped clamping coils 5 are sequentially clamped at the outer side position of the binding tie straps 2. The U-shaped fixing block 6 behind the arc-shaped clamping coil 5 is clamped into a corresponding pair of groove positions 4 for limiting. And the corresponding cable body 9 is stuffed into the corresponding arc-shaped clamping coil 5 for fixing. The plurality of cable bodies 9 are classified and placed in the arc-shaped clamping coils 5. After all the cable bodies 9 are clamped, the binding tie straps 2 can be integrally circled and engaged with the clamping block 3, so that the plurality of cable bodies 9 are evenly force-bound at the inner side position of the binding tie straps 2 for limiting, effectively dispersing the limiting force generated by the binding tie straps 2 and avoiding the problem of stress concentration, which is beneficial to ensuring the operating performance of the cable body 9. At the same time, during the process of clamping the arc-shaped clamping coil 5 outside the binding tie straps 2, an elastic cord segment 7 can be arranged between the U-shaped fixing block 6 and the arc-shaped clamping coil 5. The elastic cord segment 7 can make the U-shaped fixing block 6 smoothly clamped outside the binding tie straps 2 and more adapted to the groove position 4. At the same time, when the cable body 9 is clamped inside the arc-shaped clamping coil 5, a plurality of silica gel convex clamping columns 8 inside the arc-shaped clamping coil 5 can form a heat dissipation space between the outer wall of the cable body 9 and the inner side wall of the arc-shaped clamping coil 5, and increase the friction force during the outer clamping process of the arc-shaped clamping coil 5 and the cable body 9. Cooperating with a number of heat dissipation round holes 11 to dissipate the hot air, making the arc-shaped clamping coil 5 more functional. After use, the plurality of arc-shaped clamping coils 5 can be removed and recycled multiple times.

[0030] The second implementation manner:

[0031] Figure 6 There is shown a photovoltaic grid-connected cabinet having a wire harness fixing function. A shock-absorbing spring 12 is fixedly connected to the rear end of the clamping block 3. One end of the shock-absorbing spring 12 away from the clamping block 3 is fixedly connected to a connecting piece 13. One end of the connecting piece 13 away from the clamping block 3 is fixedly connected to a magnetic connecting surface 14. The magnetic connecting surface 14 cooperates with the inner side wall of the photovoltaic grid-connected cabinet body 1. At the same time, a shock-absorbing spring 12 is arranged at the rear side of the clamping block 3. The shock-absorbing spring 12 can contact a metal component in the photovoltaic grid-connected cabinet body 1 by means of the magnetic connecting surface 14 at the rear side of the connecting piece 13 and perform magnetic connection, so as to fix a plurality of cable bodies 9 in the tying strap 2 at the same place, making the running orientation of the cable bodies 9 more stable.

[0032] Combined with the current actual requirements, the above implementation manner adopted in this application, the protection scope is not limited thereto. Within the knowledge scope of those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A photovoltaic grid-connected cabinet with a wiring harness fixing function, characterized in that: The invention comprises a photovoltaic grid-connected cabinet body (1), wherein the inner end of the photovoltaic grid-connected cabinet body (1) is provided with a power module, wherein the power module is externally connected to a plurality of cable bodies (9), wherein the outer ends of the plurality of cable bodies (9) are bound with a wire binding tie (2), wherein the upper and lower ends of the wire binding tie (2) are fixedly connected with a thickened accessory strip (10), wherein the upper and lower ends of the thickened accessory strip (10) are provided with a plurality of groove clamping positions (4), wherein the plurality of groove clamping positions (4) are symmetrically arranged in an upper and lower manner, wherein the outer end of the wire binding tie (2) is provided with a plurality of arc-shaped clamping coils (5), wherein the rear end of the arc-shaped clamping coil (5) is fixedly connected with a U-shaped fixing block (6), wherein the U-shaped fixing block (6) and the groove clamping position (4) are mutually clamped, and wherein the outer end of the wire binding tie (2) is provided with a clamping block (3).

2. A photovoltaic grid-connected cabinet with a wiring harness fixing function according to claim 1, characterized in that: The clamping block (3) and the wire binding tie (2) are clamped with each other, and the plurality of cable bodies (9) are respectively clamped into corresponding arc-shaped clamping coils (5).

3. The photovoltaic grid-connected cabinet with a wiring harness fixing function according to claim 1, characterized in that: The inner end of the arc-shaped clamping coil (5) is fixedly connected to a plurality of silicone protruding clamping columns (8), and the plurality of silicone protruding clamping columns (8) are in contact with the outer side wall of the cable body (9).

4. The photovoltaic grid-connected cabinet with a wiring harness fixing function according to claim 1, characterized in that: An elastic rope segment (7) is fixedly connected between the U-shaped fixing block (6) and the arc-shaped clamping coil (5), and the elastic rope segment (7) cooperates with the groove clamping position (4).

5. The photovoltaic grid-connected cabinet with a wiring harness fixing function according to claim 1, characterized in that: The outer end of the arc-shaped clamping coil (5) is provided with a plurality of circular heat dissipation holes (11), and the plurality of circular heat dissipation holes (11) are evenly distributed.

6. The photovoltaic grid-connected cabinet with a wiring harness fixing function according to claim 1, characterized in that: The rear end of the locking block (3) is fixedly connected to a damping spring (12), and one end of the damping spring (12) away from the locking block (3) is fixedly connected to a connecting block sheet (13).

7. A photovoltaic grid-connected cabinet with a wiring harness fixing function according to claim 6, characterized in that In: One end of the connecting block (13) away from the locking block (3) is fixedly connected to a magnetic connecting surface (14). The magnetic connection surface (14) cooperates with the inner side wall of the photovoltaic grid-connected cabinet body (1).

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