Outdoor bus installation channel and confluence power transformation device

Abstract

The utility model relates to the field of power generation, power transformation or power distribution, in particular to an outdoor bus installation channel and a confluence power transformation device. According to the confluence power transformation device provided by the utility model, an existing photovoltaic bus device is improved, the confluence power transformation device comprises the box transformer substation and the confluence cabinet, the brand new outdoor bus installation channel designed by the utility model is connected between the box transformer substation and the confluence cabinet, and the channel body comprises the first telescopic pipe joint and the second telescopic pipe joint; the second telescopic pipe joint is sleeved with the first telescopic pipe joint, and the adjusting end of the first telescopic pipe joint and the adjusting end of the second telescopic pipe joint are provided with connecting holes correspondingly matched with each other respectively. Through mutual cooperation of the first telescopic pipe joint and the second telescopic pipe joint of the outdoor bus installation channel, the convergence power transformation device can realize distance compensation adjustment between the box transformer substation and the convergence cabinet, the number of outdoor bus system parts is reduced, limitation of the top cover assembly is avoided, the convergence power transformation device is convenient to install, and the installation efficiency is improved. And the adjusting range is not limited by the top cover assembly.

Description

Technical Field

[0001] The utility model relates to the field of power generation, power transformation or power distribution, and in particular to an outdoor busbar installation channel and a current-converging power transformation device. Background Art

[0002] In recent years, as my country has vigorously pursued its dual carbon goals of achieving peak carbon emissions and achieving carbon neutrality, the country has intensified its efforts to promote the construction of large-scale photovoltaic and wind power projects, primarily in deserts, Gobi deserts, and desolate regions. Currently, a growing number of new energy projects are located in the high-altitude regions of the Qinghai-Tibet Plateau. These large-scale photovoltaic and wind power projects utilize separate box transformers and combiner cabinets, which are then connected to the box transformer's low-voltage frame circuit breaker via copper busbars.

[0003] Prior art, such as the Chinese invention patent application with publication number CN114566927A, discloses an outdoor busbar system and photovoltaic busbar device. The outdoor busbar system includes a telescopic frame, a first bridge frame, and a second bridge frame. The telescopic frame, the first bridge frame, and the second bridge frame are provided with connection holes. The first bridge frame and the second bridge frame are connected to the telescopic frame through the connection holes and are located on either side of the telescopic frame. The telescopic frame, the first bridge frame, and the second bridge frame form a busbar channel structure. The length of the busbar channel structure is adjusted by adjusting adjustment portions on the telescopic frame, the first bridge frame, and the second bridge frame. The busbar channel structure has an open top. Both the top sides of the first and second bridge frames are provided with flanges, each with a fixing hole. The busbar channel also has a top cover assembly for sealing the opening. The inner cover assembly has flanges on both sides corresponding to the first and second bridge frames, each with corresponding fixing holes. The fixing holes engage, allowing the top cover assembly to adjust the length of the busbar channel. At least one busbar fixing portion is provided within each of the first and second bridge frames for securing the busbars.

[0004] The above-mentioned photovoltaic busbar device can achieve distance compensation adjustment between the box transformer and the junction cabinet through the outdoor busbar system. However, this outdoor busbar system has a large number of components, and since the length of the top cover assembly is fixed and unchanged, the maximum extension distance between the telescopic frame, the first bridge frame, and the second bridge frame is limited by the top cover assembly. Therefore, overall, this busbar device is not only inconvenient to adjust and install, but also has a limited adjustment range. Utility Model Content

[0005] The purpose of the utility model is to provide an outdoor busbar installation channel to solve the problem that in the existing outdoor busbar system, the length of the top cover assembly is fixed and unchanged, so that the maximum extension distance between the telescopic frame, the first bridge frame and the second bridge frame is limited by the top cover assembly, and the number of parts is large, which makes the outdoor busbar system inconvenient to adjust and install.

[0006] The purpose of the present invention is also to provide a busbar substation, which includes the outdoor busbar installation channel of the present invention, so as to solve the problem that the outdoor busbar system components of the photovoltaic busbar device in the prior art are relatively large, and the maximum extension distance between the telescopic frame, the first bridge frame and the second bridge frame is limited by the top cover assembly, resulting in the busbar device not only being inconvenient to adjust and install, but also having a limited adjustment range.

[0007] The outdoor busbar installation channel of the present invention includes a channel body, which includes a first telescopic pipe section and a second telescopic pipe section. The two ends of the telescopic pipe sections are respectively an adjusting end and a fixed end. The adjusting ends of the two telescopic pipe sections are inserted into each other, and the fixed ends are used to be fixedly connected to corresponding equipment respectively. The adjusting ends of the two telescopic pipe sections are both provided with connecting holes. At least one of the connecting holes of the two adjusting ends is a long hole extending in the telescopic direction or an array of holes arranged in parallel in the telescopic direction.

[0008] Furthermore, of the two adjustment ends, the connection hole on one is a long hole extending in the telescopic direction, and the connection holes on the other are array holes arranged in parallel in the telescopic direction.

[0009] Furthermore, the first telescopic tube section and the second telescopic tube section are square tubes of the same shape.

[0010] Furthermore, the fixed ends of the two telescopic pipe sections are both provided with connecting flanges, and the flange hole of at least one of the two connecting flanges is a long hole.

[0011] Furthermore, the flange holes of the two connecting flanges are both long holes, the long hole on one extends horizontally, and the long hole on the other extends vertically.

[0012] Furthermore, an outer cover is provided on the outer periphery of the channel body, and the outer cover covers the top and both sides of the channel body.

[0013] Furthermore, the outer cover is a U-shaped groove structure with an opening facing downward, covering the outer side of the channel body from top to bottom.

[0014] Furthermore, the lower ends of the two relatively parallel side walls of the outer cover of the U-shaped channel structure are connected by a connecting piece located at the lower side of the channel body.

[0015] Furthermore, the adjusting end of the first telescopic tube section is inserted into the adjusting end of the second telescopic tube section. A fixing hole is provided on the first telescopic tube section near the fixed end. The fixing hole cooperates with the connecting hole on the adjusting end of the second telescopic tube section to keep the channel body in the maximum contraction state.

[0016] The utility model designs a new outdoor busbar installation channel, in which the channel body includes a first telescopic tube section and a second telescopic tube section, the second telescopic tube section is sleeved in the first telescopic tube section, and then corresponding connecting holes are provided at the adjusting ends of the first telescopic tube section and the second telescopic tube section, and the connecting hole of at least one adjusting end is a long hole extending in the telescopic direction or an array of holes arranged in parallel in the telescopic direction. This can enable the outdoor busbar installation channel to be not restricted by the top cover assembly when it is extended and retracted, and also reduces the number of parts of the outdoor busbar installation channel. Compared with the existing busbar channel, the outdoor busbar channel of the utility model is easy to adjust and install, and the adjustment range is not restricted by the top cover assembly.

[0017] The current-converging and power-transforming device of the present invention comprises a current-converging cabinet and a box-type transformer. A busbar installation channel is connected between the current-converging cabinet and the box-type transformer. The busbar installation channel is the outdoor busbar installation channel described above.

[0018] Furthermore, the outdoor busbar installation channel includes a channel body, the channel body includes a first telescopic pipe section and a second telescopic pipe section, the two ends of the two telescopic pipe sections are an adjusting end and a fixed end respectively, the adjusting ends of the two telescopic pipe sections are inserted into each other, and the fixed ends are used to be fixedly connected to corresponding equipment respectively, and the adjusting ends of the two telescopic pipe sections are provided with connecting holes, and at least one of the connecting holes of the two adjusting ends is a long hole extending in the telescopic direction or an array hole arranged in parallel in the telescopic direction.

[0019] Furthermore, of the two adjustment ends, the connection hole on one is a long hole extending in the telescopic direction, and the connection holes on the other are array holes arranged in parallel in the telescopic direction.

[0020] Furthermore, the first telescopic tube section and the second telescopic tube section are square tubes of the same shape.

[0021] Furthermore, the fixed ends of the two telescopic pipe sections are both provided with connecting flanges, and the flange hole of at least one of the two connecting flanges is a long hole.

[0022] Furthermore, the flange holes of the two connecting flanges are both long holes, the long hole on one extends horizontally, and the long hole on the other extends vertically.

[0023] Furthermore, an outer cover is provided on the outer periphery of the channel body, and the outer cover covers the top and both sides of the channel body.

[0024] Furthermore, the outer cover is a U-shaped groove structure with an opening facing downward, covering the outer side of the channel body from top to bottom.

[0025] Furthermore, the lower ends of the two relatively parallel side walls of the outer cover of the U-shaped channel structure are connected by a connecting piece located at the lower side of the channel body.

[0026] Furthermore, the adjusting end of the first telescopic tube section is inserted into the adjusting end of the second telescopic tube section. A fixing hole is provided on the first telescopic tube section near the fixed end. The fixing hole cooperates with the connecting hole on the adjusting end of the second telescopic tube section to keep the channel body in the maximum contraction state.

[0027] The busbar substation of the present invention improves the existing photovoltaic busbar device, so that the busbar substation includes a box transformer and a busbar cabinet, and the outdoor busbar installation channel of the present invention introduced above is connected between the box transformer and the busbar cabinet. When the busbar substation realizes distance compensation adjustment between the box transformer and the busbar cabinet through the outdoor busbar installation channel, the adjustment can be realized by the cooperation of the first telescopic pipe section and the second telescopic pipe section of the outdoor busbar installation channel, which reduces the number of components of the outdoor busbar system and avoids the limitation of the top cover assembly, making the busbar substation easy to install and the adjustment range not limited by the top cover assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a front view of the current-converging and power-transforming device of the present invention;

[0029] Figure 2 It is a partial cross-sectional view of the outdoor busbar installation channel of the present utility model;

[0030] Figure 3 This is an axial side view of the outdoor busbar installation channel of the present invention;

[0031] Figure 4 for Figure 3 Axonometric view of the first telescopic tube section;

[0032] Figure 5 for Figure 3 Axonometric view of the second telescopic tube section;

[0033] Figure 6 for Figure 3 Axial view of the first flange opening.

[0034] In the figure: 1. First telescopic pipe section; 2. Second telescopic pipe section; 4. Array hole; 5. Long hole; 6. Cover; 8. Flange hole; 31. Connecting flange; 9. Fixing hole; 10. Box-type transformer; 11. First flange opening; 12. Combiner cabinet; 13. Second flange opening; 14. Low-voltage cabinet copper busbar; 15. Combiner cabinet copper busbar; 16. Copper flexible connector; 17. Copper busbar support; 18. Pillar insulator; 19. Connector. DETAILED DESCRIPTION

[0035] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0036] The utility model is an improvement on the existing photovoltaic busbar device by setting the channel body of the outdoor busbar installation channel as a first telescopic tube section and a second telescopic tube section, the two ends of the telescopic tube sections are respectively an adjustment end and a fixed end, and then by providing connection holes at the adjustment ends of the two telescopic tube sections, at least one connection hole of the two adjustment ends is a long hole extending in the telescopic direction or an array hole arranged in parallel in the telescopic direction, so that the telescopic operation of the existing busbar channel is achieved by the combined installation and cooperation of multiple parts, and the improvement is that only the first telescopic tube section and the second telescopic tube section need to be inserted into each other to achieve the desired effect. A circumferentially closed channel can be formed by the telescopic tube sections, and a top cover is no longer needed. Therefore, the restriction of the top cover assembly on the busbar channel is avoided from the root. Overall, the utility model makes the busbar channel easy to install and the adjustment range is not limited by the top cover assembly.

[0037] Based on the above main concepts, different embodiments are provided below for illustration.

[0038] Example of outdoor busbar installation channel:

[0039] On the basis of the above-mentioned inventive concept, the present invention provides an embodiment. In this embodiment, the channel body includes a first telescopic pipe section 1 and a second telescopic pipe section 2. The two ends of the two telescopic pipe sections are an adjusting end and a fixed end respectively. The adjusting ends of the two telescopic pipe sections are inserted into each other. Such a design allows the first telescopic pipe section 1 to move in the second telescopic pipe section 2 to achieve telescopic expansion. The fixed end of the first telescopic pipe section 1 is used to be fixedly connected to the box transformer 10, and the fixed end of the second telescopic pipe section 2 is used to be fixedly connected to the junction cabinet 12. Connecting holes are provided at the adjusting ends of the two telescopic pipe sections. At least one of the connecting holes of the two adjusting ends is a long hole 5 extending in the telescopic direction or an array hole 4 arranged side by side in the telescopic direction. In this way, the telescopic expansion and fixation of the first telescopic pipe section 1 and the second telescopic pipe section 2 can be achieved by matching the holes on the adjusting ends.

[0040] On the basis of the above invention concept, the present invention also provides a more optimized embodiment, such as Figure 2 As shown, in this embodiment, of the two adjustment ends, the connection hole on one is a long hole 5 extending in the telescopic direction, and the connection hole on the other is an array hole 4 arranged in parallel in the telescopic direction, so that the first telescopic tube section 1 and the second telescopic tube section 2 can be better adjusted and fixed.

[0041] Based on the above invention concept or embodiment, the present invention also provides an embodiment. In this embodiment, the first telescopic tube section 1 and the second telescopic tube section 2 are both round tubes of the same shape, which facilitates the insertion of the first telescopic tube section 1 and the second telescopic tube section 2.

[0042] Based on the above-mentioned inventive concept or embodiment, the present invention also provides a more optimized embodiment. In this embodiment, the first telescopic pipe section 1 and the second telescopic pipe section 2 are both square tubes of the same shape. The square tubes facilitate the corresponding matching of the connecting holes at the adjusting ends of the two telescopic pipe sections, which makes it easier to insert, adjust and install the first telescopic pipe section 1 and the second telescopic pipe section 2.

[0043] like Figure 2-5 As shown, in this embodiment, the first and second telescopic tube sections 1 and 2 are welded together by an upper cover plate, a left side plate, a right side plate, and a lower cover plate. Both sides of the upper cover plate are bent downward, while both sides of the lower cover plate are bent upward. The bent portions of the upper and lower cover plates are of equal size. One end of each left and right side plate abuts the inner side of the downwardly bent portion of the upper cover plate, while the other end of each left and right side plate abuts the outer side of the upwardly bent portion of the lower cover plate. This welded tubular structure also ensures the channel body is sealed, preventing rainwater and other substances from entering the channel through the connection between the plates.

[0044] Based on the above invention concepts or embodiments, the present invention also provides an embodiment, such as Figure 3-5 As shown, in this embodiment, the fixed ends of the first telescopic pipe section 1 and the second telescopic pipe section 2 are both provided with connecting flanges 31, so that the outdoor busbar installation channel is connected to the low-voltage cabinet and the combiner cabinet 12 through the flanges. The flange hole 8 of at least one of the two connecting flanges 31 is a long hole 5, so that the position of the flange connection can be adjusted during the flange connection.

[0045] The present utility model also provides another embodiment. In this embodiment, the fixed end of the first telescopic pipe section 1 is directly welded to the low-voltage cabinet of the box-type transformer 10, and the fixed end of the second telescopic pipe section 2 is directly welded to the junction cabinet 12, thereby ensuring the sealing effect of the pipeline body.

[0046] On the basis of the above-mentioned inventive concept or embodiment, the present invention also provides a more optimized embodiment, such as Figure 3-5 As shown, in this embodiment, the flange holes 8 of the two connecting flanges 31 are both long holes 5, the long hole 5 on one extends horizontally, and the long hole 5 on the other extends vertically. This design allows the channel body to be adjusted perpendicular to the telescopic direction at the flange connection through the flange holes 8 on the connecting flanges 31 that are perpendicular to each other during installation.

[0047] Based on the above-mentioned inventive concept or embodiment, the present utility model also provides an embodiment. In this embodiment, an outer cover 6 is provided on the outer periphery of the channel body, and the outer cover 6 covers the top and both sides of the channel body, so that the outer cover 6 protects the top and both sides of the channel body.

[0048] Based on the above-mentioned inventive concept or embodiment, the present utility model also provides another embodiment. In this embodiment, the outer cover 6 is an arc-shaped structure with an opening set downward, covering the outside of the channel body from top to bottom, so that the outer cover 6 protects the top and both sides of the channel body.

[0049] Based on the above-mentioned inventive concept or embodiment, the present invention also provides a more optimized embodiment. In this embodiment, the outer cover 6 is set to a U-shaped structure with the opening facing downward, covering the outside of the channel body from top to bottom, so that it can directly cover the outside of the channel body, thereby preventing rainwater from entering the outdoor busbar channel from the flanges of the first telescopic pipe section 1 and the second telescopic pipe section 2.

[0050] On the basis of the above-mentioned inventive concept or embodiment, the present invention also provides a more optimized embodiment, in which the lower ends of the two relatively parallel side walls of the outer cover 6 of the U-shaped groove structure are connected by a connecting member 19 located on the lower side of the channel body, so that the position of the outer cover 6 can be fixed, so that the outer cover 6 firmly covers the channel body.

[0051] Specifically, when the connecting member 19 is provided, in one embodiment, as Figure 1 、 2 As shown, the lower ends of the two relatively parallel side walls of the U-shaped channel cover 6 are positioned below the channel body, and a plurality of connecting holes are formed in the side walls below the channel body. Connecting rods are used as connectors 19, and then the connecting holes are connected to the connecting rods by bolts, thereby fixing the connecting rods to the cover 6. In another embodiment, a bottom plate is provided at the bottom of the U-shaped channel cover 6. The bottom end of one side of the opening is connected by a hinge, and the bottom end of the other side is provided with a locking structure. After the cover 6 covers the channel body, the bottom plate is closed upward and then locked by the locking structure. The bottom plate constitutes the connector 19.

[0052] Based on the above invention concepts or embodiments, the present invention also provides an embodiment, such as Figure 3 、 4 As shown, in this embodiment, the adjustable end of the first telescopic tube section 1 is inserted into the adjustable end of the second telescopic tube section 2. A fixing hole 9 is provided on the first telescopic tube section 1 near the fixed end. This fixing hole 9 cooperates with the connecting hole on the adjustable end of the second telescopic tube section 2 to maintain the channel body in its maximum contraction position. This design not only maintains the channel body in its maximum contraction position, but also allows the channel body to be directly opened during installation, making installation of the channel body very convenient.

[0053] Example of busbar transformer device:

[0054] Based on the above invention concepts or embodiments, the present invention provides an embodiment, such as Figure 1 As shown, in this embodiment, the busbar substation of the present invention includes a box transformer 10 and a busbar cabinet 12. A busbar installation channel is connected between the busbar cabinet 12 and the box transformer 10. The busbar installation channel is the outdoor busbar installation channel of the present invention introduced above, thereby realizing the installation of the outdoor busbar installation channel.

[0055] like Figure 2 、 3 As shown in Figure 6, the busbar includes a low-voltage cabinet copper busbar 14, a combiner cabinet copper busbar 15 and a copper flexible connector 16. The low-voltage cabinet copper busbar 14 is in the first flange opening 11. The low-voltage cabinet copper busbar 14 extends from the first flange opening 11 on the low-voltage cabinet of the box-type transformer 10 and extends into the outdoor busbar connection channel. The combiner cabinet copper busbar 15 is in the second flange opening 13. A copper flexible connector 16 is set between the low-voltage cabinet copper busbar 14 and the combiner cabinet copper busbar 15 for connection.

[0056] like Figure 2 As shown, a copper busbar support 17 is provided in the first flange opening 11, and a support insulator 18 is provided on the copper busbar support 17 to support the low-voltage cabinet copper busbar 14 when the copper busbar span is large. This prevents the unsupported copper busbar from contacting the outdoor busbar installation channel when the copper busbar span is large, causing a busbar short circuit.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the description and drawings of the present invention shall also be included in the scope of protection of the present invention.

Claims

1. Outdoor busbar installation channel, characterized by: The channel body includes a first telescopic tube section and a second telescopic tube section. The two ends of the telescopic tube sections are an adjusting end and a fixed end respectively. The adjusting ends of the two telescopic tube sections are inserted into each other, and the fixed ends are used to be fixedly connected to corresponding equipment respectively. The adjusting ends of the two telescopic tube sections are both provided with connecting holes. At least one of the connecting holes of the two adjusting ends is a long hole extending in the telescopic direction or an array of holes arranged in parallel in the telescopic direction.

2. The outdoor busbar installation channel according to claim 1, characterized in that: Of the two adjustment ends, the connection hole on one is a long hole extending in the telescopic direction, and the connection holes on the other are array holes arranged in parallel in the telescopic direction.

3. The outdoor busbar installation channel according to claim 2, characterized in that: The first telescopic pipe section and the second telescopic pipe section are square tubes with the same shape.

4. The outdoor busbar installation channel according to any one of claims 1 to 3, characterized in that: The fixed ends of the two telescopic pipe sections are both provided with connecting flanges, and at least one flange hole of the two connecting flanges is a long hole.

5. The outdoor busbar installation channel according to claim 4, characterized in that: The flange holes of the two connecting flanges are both long holes, the long hole on one extends horizontally, and the long hole on the other extends vertically.

6. The outdoor busbar installation channel according to any one of claims 1 to 3, characterized in that: An outer cover is provided on the outer periphery of the channel body, and the outer cover covers the upper side and both sides of the channel body.

7. The outdoor busbar installation channel according to claim 6, characterized in that: The outer cover is a U-shaped groove structure with an opening facing downwards, and covers the outer side of the channel body from top to bottom.

8. The outdoor busbar installation channel according to claim 7, characterized in that: The lower ends of the two relatively parallel side walls of the outer cover of the U-shaped channel structure are connected by a connecting piece located at the lower side of the channel body.

9. The outdoor busbar installation channel according to any one of claims 1 to 3, characterized in that: The adjusting end of the first telescopic tube section is inserted into the adjusting end of the second telescopic tube section. A fixing hole is provided on the first telescopic tube section near the fixed end. The fixing hole cooperates with the connecting hole on the adjusting end of the second telescopic tube section to keep the channel body in the maximum contraction state.

10. A current-converging power conversion device, characterized in that: It comprises a junction box and a box transformer, wherein a busbar installation channel is connected between the junction box and the box transformer, and the busbar installation channel is the outdoor busbar installation channel according to any one of claims 1-9.

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