Combined transformer substation for photovoltaic power generation

Abstract

The invention relates to the technical field of transformer substations, and discloses a combined transformer substation for photovoltaic power generation, which comprises a case assembly, first adjusting assemblies are connected to two sides of the case assembly, and a length adjusting assembly is arranged on one side, away from the case assembly, of each first adjusting assembly. A second adjusting assembly is arranged on the side, close to the machine box assembly, of the bottom of the first adjusting assembly, a conveying wheel assembly is connected to the bottom of the machine box assembly, and when the machine box assembly meets a step, the first adjusting assembly close to the side of the step is adjusted to be turned upwards to make contact with the step; the length adjusting assembly drives the first adjusting assembly to increase the length, and the second adjusting assembly supports the case assembly to turn upwards and incline through the steps and is matched with the conveying wheel assembly to drive the case assembly to climb the steps.

Description

Technical Field

[0001] The present invention relates to the technical field of substations, and in particular to a combined substation for photovoltaic power generation. Background Art

[0002] A combined substation for photovoltaic power generation is an integrated power device, which is mainly used to convert the direct current generated by solar panels into alternating current, boost the voltage and then transmit it to the power grid. With the changes in the scale of photovoltaic power generation fields, the adjustment of grid connection points, and the operation and maintenance of equipment failures, the combined substation needs to be moved and redeployed to meet new power generation and transmission requirements.

[0003] Existing combined substations usually use universal wheels to assist the overall forward movement of the equipment when moving. However, the installation position of the combined substation is usually set outdoors, and the outdoor terrain is relatively complex. When moving, it may encounter complex terrains such as steps or potholes on the road surface. It is difficult to pass only through universal wheels. Operators need to wait in place for moving tools or carry suitable moving tools with them when they need to move the combined substation to assist in moving, and transfer the substation to the moving tool to pass through the complex terrain, resulting in an increase in the moving construction cost and insufficient convenience of the combined substation.

[0004] Therefore, the present invention provides a combined substation for photovoltaic power generation. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0006] The present invention provides a combined substation for photovoltaic power generation, including a chassis assembly. Both sides of the chassis assembly are connected with a first adjustment assembly. A length adjustment assembly is arranged on the side of the first adjustment assembly away from the chassis assembly. A second adjustment assembly is arranged on the side of the bottom of the first adjustment assembly close to the chassis assembly. The bottom of the chassis assembly is connected with a conveying wheel assembly. When the chassis assembly encounters a step, the first adjustment assembly on the side close to the step is adjusted to turn up and contact the step. The length adjustment assembly drives the first adjustment assembly to increase in length, and the second adjustment assembly supports the chassis assembly to turn up and tilt with the help of the step, and cooperates with the conveying wheel assembly to drive the chassis assembly to climb the step.

[0007] Preferably, the chassis assembly includes a box body. A voltage transformation unit is fixedly connected to the top inside the box body. The top of the box body is fixedly connected with a top cover through bolts. Mounting plates are fixedly connected to the front, back, left, and right sides of the box body.

[0008] The box body and the top cover jointly protect the voltage transformation unit from being contaminated by dust. Preferably, the conveying wheel assembly includes a mounting seat, the top of the mounting seat is fixedly connected to the bottom of the box body, a square groove is formed in the bottom of the mounting seat, and a second conveying wheel is rotatably connected to the inner side of the square groove of the mounting seat.

[0009] The second conveying wheel reduces the pushing resistance.

[0010] Preferably, the first adjusting assembly includes an upper plate, a first motor is installed on the front of the top of the upper plate, a rotating shaft is fixedly connected to the output shaft of the first motor, the outer side of the rotating shaft of the first motor is fixedly connected to the top of the upper plate, the bottom of the upper plate is connected to a lower plate, an installation groove is formed in the bottom of the lower plate, and a first conveying wheel is rotatably connected to the inner side of the installation groove.

[0011] Preferably, a first movable groove is formed in the inner side of the upper plate, the length adjusting assembly includes a hydraulic cylinder, a liquid guide pipe is fixedly connected to one side of the hydraulic cylinder close to the first adjusting assembly, through holes are provided at the connection between the liquid guide pipe and the first movable groove, the first movable groove is communicated with the liquid guide pipe, a push plate is fixedly connected to the top of the lower plate, and the push plate is slidably connected to the first movable groove.

[0012] Preferably, a limiting plate is fixedly connected to the top of the push plate, limiting blocks are fixedly connected to the front and back of the top of the limiting plate, the cross-sectional dimension of the first movable groove is in clearance fit with the cross-sectional dimension of the limiting plate, and a square groove with a tolerance fit with the cross-sectional dimension of the push plate is formed in the bottom of the first movable groove.

[0013] Preferably, the second adjusting assembly includes a second motor, a rotating shaft is fixedly connected to the output shaft of the second motor, a supporting plate is fixedly connected to the outer side of the rotating shaft of the second motor, an inclined angle is formed on one side of the bottom of the supporting plate close to the chassis assembly, a friction protrusion is fixedly connected to one side of the inclined angle of the supporting plate close to the chassis assembly, a second movable groove is formed on one side of the lower plate close to the chassis assembly, and the rotating shaft of the second motor movably penetrates through the top of the inner side of the second movable groove.

[0014] There is no need to directly lift the chassis assembly 1 onto the steps by manpower, and the overall moving process is more labor-saving.

[0015] Preferably, the covering area of the conveying wheel assembly is in tolerance fit with the bottom area of the box body.

[0016] When the chassis assembly moves on the road surface, when encountering uneven road surfaces, some of the second conveying wheels are lifted up but do not affect the overall normal passage, effectively dispersing the pressure of the object on the ground.

[0017] The beneficial effects of the present invention are as follows: For the combined substation for photovoltaic power generation of the present invention, through the combined cooperation of the first adjustment component, the length adjustment component, the conveying wheel component, and the second adjustment component, when the chassis component encounters a step, the first adjustment component on the side close to the step is adjusted to turn up and contact the step, the length adjustment component drives the first adjustment component to increase in length, and the second adjustment component supports the chassis component to turn up and tilt with the help of the step, and cooperates with the conveying wheel component to drive the chassis component to climb the step, assisting the staff to directly lift the chassis component onto the step. The overall moving process is more labor-saving, and during non-moving periods, the first adjustment component, the box body, and the top cover jointly protect the voltage transformation unit.

[0018] For the combined substation for photovoltaic power generation of the present invention, a conveying wheel component is provided. There are multiple groups of the conveying wheel components, and they are evenly distributed at the bottom of the box body. When the chassis component moves on the road surface and encounters unevenness on the road surface, some of the second conveying wheels are lifted up but do not affect the overall normal passage, effectively dispersing the pressure of the object on the ground, making the moving process smoother, and when supported by the second adjustment component and the chassis component tilts, it is easier for multiple groups of conveying wheel components to climb the steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional view of the overall structure of the present invention; Figure 2 is a schematic diagram of the overall structure of the present invention in the climbing state; Figure 3 is Figure 2 a partial enlarged view of part A in Figure 4 is a schematic diagram of the structure of the first adjustment component in the present invention; Figure 5 is Figure 2 a partial enlarged view of part A in

[0020] Description of the reference numerals: 1. Chassis component; 101. Top cover; 102. Box body; 103. Voltage transformation unit; 104. Mounting plate; 2. First adjustment component; 201. Upper plate; 202. First movable slot; 203. Second movable slot; 204. Mounting slot; 205. First conveying wheel; 206. Lower plate; 207. First motor; 3. Length adjustment component; 301. Hydraulic cylinder; 302. Liquid guide pipe; 303. Limit plate; 304. Push plate; 305. Limit block; 4. Conveying wheel component; 401. Mounting seat; 402. Second conveying wheel; 5. Second adjustment component; 501. Second motor; 502. Support plate; 503. Friction protrusion. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Reference will now be made to exemplary embodiments to discuss the subject matter described herein. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein, and changes can be made to the functions and arrangements of the elements discussed without departing from the scope of protection of the content of this specification. Each example may omit, substitute, or add various processes or components as needed. Additionally, the features described relative to some examples can also be combined in other examples.

[0022] As Figures 1 to 5 shown, a combined substation for photovoltaic power generation according to an embodiment of the present invention will be described with particular reference to Figure 1 and Figure 2 , which includes a chassis assembly 1. First adjustment assemblies 2 are connected to both sides of the chassis assembly 1. A length adjustment assembly 3 is provided on the side of the first adjustment assembly 2 away from the chassis assembly 1. A second adjustment assembly 5 is provided on the side of the bottom of the first adjustment assembly 2 close to the chassis assembly 1. A conveying wheel assembly 4 is connected to the bottom of the chassis assembly 1. When the chassis assembly 1 encounters a step, the first adjustment assembly 2 on the side close to the step is adjusted to turn up and contact the step. The length adjustment assembly 3 drives the first adjustment assembly 2 to increase in length, and the second adjustment assembly 5 uses the step to support the chassis assembly 1 to turn up and tilt, and cooperates with the conveying wheel assembly 4 to drive the chassis assembly 1 to climb the step.

[0023] Please refer particularly to Figure 3 , the chassis assembly 1 includes a box body 102. A voltage transformation unit 103 is fixedly connected to the top inside the box body 102. A top cover 101 is fixedly connected to the top of the box body 102 by bolts. Mounting plates 104 are fixedly connected to the front, back, left, and right sides of the box body 102.

[0024] Specifically, the box body 102 and the top cover 101 jointly protect the voltage transformation unit 103 from being contaminated by dust. The mounting plates 104 are used to mount the first adjustment assemblies 2. When the voltage transformation unit 103 needs to be repaired, the top cover 101 can be removed by removing the bolts, thereby exposing the voltage transformation unit 103.

[0025] Please refer particularly to Figure 3 , the conveying wheel assembly 4 includes a mounting seat 401. The top of the mounting seat 401 is fixedly connected to the bottom of the box body 102. A square groove is opened at the bottom of the mounting seat 401. A second conveying wheel 402 is rotatably connected to the inside of the square groove of the mounting seat 401.

[0026] Specifically, when an operator pushes the chassis assembly 1, the second conveying wheel 402 can rotate to assist the movement of the chassis assembly 1 and reduce the pushing resistance.

[0027] Please refer particularly to Figure 2 and Figure 4, the first adjustment assembly 2 includes an upper plate 201. A first motor 207 is mounted on the front of the top of the upper plate 201. The output shaft of the first motor 207 is fixedly connected to a rotating shaft. The outer side of the rotating shaft of the first motor 207 is fixedly connected to the top of the upper plate 201. The bottom of the upper plate 201 is connected to a lower plate 206. An installation groove 204 is formed in the bottom of the lower plate 206. A first conveying wheel 205 is rotatably connected to the inner side of the installation groove 204.

[0028] Specifically, when encountering a step, start the first motor 207 to drive the upper plate 201 to turn up, and the included angle between the upper plate 201 and the chassis assembly 1 gradually increases until the bottom of the first conveying wheel 205 is on the same horizontal line as the top of the first step encountered. At this time, push the chassis assembly 1 to continue moving forward until the first conveying wheel 205 contacts the top of the first step encountered; when the chassis assembly 1 is tilted, the first conveying wheel 205 at the bottom and the second conveying wheel 402 near the first adjustment assembly 2 can support the chassis assembly 1, and when pushing the chassis assembly 1, it is driven forward by the first conveying wheel 205 at the bottom and the second conveying wheel 402 near the first adjustment assembly 2.

[0029] Please refer specifically to Figure 2 , Figure 4 , a first movable groove 202 is formed in the inner side of the upper plate 201. The length adjustment assembly 3 includes a hydraulic cylinder 301. A liquid guide pipe 302 is fixedly connected to one side of the hydraulic cylinder 301 close to the first adjustment assembly 2. Through holes are provided at the connection between the liquid guide pipe 302 and the first movable groove 202. The first movable groove 202 and the liquid guide pipe 302 are in mutual communication. A push plate 304 is fixedly connected to the top of the lower plate 206. The push plate 304 is slidably connected to the first movable groove 202.

[0030] Please refer specifically to Figure 4 , a limiting plate 303 is fixedly connected to the top of the push plate 304. Limiting blocks 305 are fixedly connected to the front and back of the top of the limiting plate 303. The cross-sectional dimension of the first movable groove 202 and the cross-sectional dimension of the limiting plate 303 are in clearance fit. A square groove with a tolerance fit with the cross-sectional dimension of the push plate 304 is formed in the bottom of the first movable groove 202.

[0031] Specifically, the limiting block 305 can prevent the limiting plate 303 from rising to the top of the first movable groove 202, so that when the push plate 304 moves to the topmost position, there is still space for the liquid guide pipe 302 to inject liquid in the limiting plate 303.

[0032] Specifically, when the hydraulic cylinder 301 is activated, liquid is introduced into the first movable groove 202 through the liquid guide pipe 302 to squeeze the limiting plate 303 and the push plate 304 to descend, thereby driving the lower plate 206 to descend. At this time, the height of the first adjustment assembly 2 is extended. When the height of the first adjustment assembly 2 is extended, the upper plate 201 continuously rotates to drive the first adjustment assembly 2 to slide on the steps through the first conveyor wheel 205 until it extends to the connection with the next step.

[0033] Please refer specifically to Figure 2 , Figure 3 , Figure 5 , the second adjustment assembly 5 includes a second motor 501. The output shaft of the second motor 501 is fixedly connected with a rotating shaft. The outer side of the rotating shaft of the second motor 501 is fixedly connected with a support plate 502. An inclined angle is provided on the bottom of the support plate 502 near one side of the chassis assembly 1. A friction protrusion 503 is fixedly connected to the inclined angle of the support plate 502 near one side of the chassis assembly 1. A second movable groove 203 is provided on the side of the lower plate 206 near the chassis assembly 1. The rotating shaft of the second motor 501 movably penetrates through the top inside the second movable groove 203.

[0034] Specifically, after the first adjustment assembly 2 stops moving, the second motor 501 is activated to drive the support plate 502 to flip towards the side close to the chassis assembly 1. Among them, the width of the support plate 502 and the width of the second movable groove 203 are in clearance fit to ensure that the support plate 502 can rotate normally. At this time, the hydraulic cylinder 301 is opened to suck the liquid back from the first movable groove 202. Under the pressure, the push plate 304 moves upward inside the first movable groove 202 to make the length of the first adjustment assembly 2 shorter, avoiding the first adjustment assembly 2 hitting the steps. At this time, the support plate 502 can support the first adjustment assembly 2. The first adjustment assembly 2 is supported by the chassis assembly 1 and continues to flip upward. However, at this time, the first motor 207 has been turned off, and the upper plate 201 cannot rotate relative to the top cover 101 at an angle. Therefore, the chassis assembly 1 is driven to tilt together. When the second conveyor wheel 402 on the side of the chassis assembly 1 close to the steps contacts the top of the steps, the second motor 501 is turned off, and the chassis assembly 1 is pushed to move onto the steps. There is no need to directly lift the chassis assembly 1 onto the steps by manpower, and the overall movement process is more labor-saving.

[0035] Please refer specifically to Figure 3 , the covering area of the conveyor wheel assembly 4 and the bottom area of the box body 102 are in tolerance fit.

[0036] Specifically, multiple groups of conveyor wheel assemblies 4 are provided and are evenly distributed at the bottom of the box body 102. When the chassis assembly 1 moves on the road surface and encounters uneven road surfaces such as short and narrow steps, some of the second conveyor wheels 402 are lifted up but do not affect the overall normal passage, effectively dispersing the pressure of the object on the ground, making the movement process smoother. And when being supported by the second adjustment assembly 5 and the chassis assembly 1 tilts, multiple groups of conveyor wheel assemblies 4 are more likely to climb onto the steps.

[0037] Working principle In the initial state, this device is as Figure 1 shown. When encountering an upward step, the first motor 207 is started to drive the upper plate 201 to turn up, and the included angle between the upper plate 201 and the chassis assembly 1 gradually increases. The bottom of the first conveyor wheel 205 is at the same horizontal line as the top of the first step encountered. At this time, the chassis assembly 1 is pushed to continue moving forward until the first conveyor wheel 205 contacts the top of the first step encountered. At this time, the hydraulic cylinder 301 is started, and liquid is introduced into the first movable groove 202 through the liquid guide pipe 302 to squeeze the limiting plate 303 and the push plate 304 to descend, thereby driving the lower plate 206 to descend. At this time, the height of the first adjusting assembly 2 extends. When the height of the first adjusting assembly 2 extends, the first motor 207 continuously drives the upper plate 201 to rotate. The first adjusting assembly 2 slides on the steps through the first conveyor wheel 205 until it extends to the connection with the next step. At this time, the first motor 207 is turned off; After the first adjusting assembly 2 stops moving, the second motor 501 is started to drive the support plate 502 to turn towards the side close to the chassis assembly 1. Among them, the width of the support plate 502 is in clearance fit with the width of the second movable groove 203 to ensure that the support plate 502 can rotate normally. At this time, the hydraulic cylinder 301 is opened to suck back the liquid from the first movable groove 202. Under the pressure, the push plate 304 moves upward on the inner side of the first movable groove 202 to make the length of the first adjusting assembly 2 shorter, avoiding the first adjusting assembly 2 from hitting the steps. At this time, the support plate 502 can support the first adjusting assembly 2. The first adjusting assembly 2 is supported by the chassis assembly 1 and continues to turn upward. However, at this time, the first motor 207 has been turned off, and the upper plate 201 cannot rotate relative to the top cover 101. Therefore, the chassis assembly 1 is driven to tilt together. When the second conveyor wheel 402 on the side close to the steps of the chassis assembly 1 contacts the top of the steps, the second motor 501 is turned off, and the chassis assembly 1 is pushed to move onto the steps, eliminating the need to directly lift the chassis assembly 1 onto the steps by manpower, making the overall moving process more labor-saving; Similarly, when encountering a downward step, the upper plate 201 on the side close to the step first exits the current step and is located at the top of the first downward step. The hydraulic cylinder 301 on the side close to the first downward step is first activated to extend the length of the first adjustment assembly 2 until the first conveyor wheel 205 contacts the top of the first downward step, and then the hydraulic cylinder 301 is closed. Then, the chassis assembly 1 is continuously pushed forward until the middle of the chassis assembly 1 is located at the edge of the current step. Then, the hydraulic cylinder 301 on the side away from the first downward step is activated to extend the length of the first adjustment assembly 2, and the hydraulic cylinder 301 on the side close to the first downward step is activated to shorten the length of the first adjustment assembly 2, so that the entire chassis assembly 1 is flipped, facilitating the direct pushing of the chassis assembly 1 downward. When the upper plate 201 away from the first downward step contacts the edge of the current step, the chassis assembly 1 is continuously pushed and the first motor 207 on the front of this upper plate 201 is activated to drive the upper plate 201 to flip away from the chassis assembly 1 side, so that the chassis assembly 1 slowly moves downward to a horizontal angle until the upper plate 201 away from the first downward step completely disengages from the current step, and then it returns to the initial state.

[0038] The above embodiments of the specific implementation manners have been described, but this embodiment is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of this embodiment, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of this embodiment.

Claims

1. A combined substation for photovoltaic power generation, characterized in that: The invention comprises a chassis component (1), wherein both sides of the chassis component (1) are connected with first adjustment components (2), a side of the first adjustment component (2) away from the chassis component (1) is provided with a length adjustment component (3), a side of the bottom of the first adjustment component (2) close to the chassis component (1) is provided with a second adjustment component (5), and the bottom of the chassis component (1) is connected with a conveying wheel component (4), and when the chassis component (1) encounters a step, the first adjustment component (2) close to the step is adjusted to flip up and contact the step, the length adjustment component (3) drives the first adjustment component (2) to increase in length, and the second adjustment component (5) supports the chassis component (1) to flip up and tilt with the help of the step, and cooperates with the conveying wheel component (4) to drive the chassis component (1) to climb up the step.

2. A photovoltaic power generation combined substation according to claim 1, characterized in that: The chassis assembly (1) comprises a box body (102), a transformer unit (103) being fixedly connected to the top of the inner side of the box body (102), a top cover (101) being fixedly connected to the top of the box body (102) by means of bolts, and mounting plates (104) being fixedly connected to the front and back sides of both sides of the box body (102).

3. A photovoltaic power generation combined substation according to claim 2, characterized in that: The conveying wheel assembly (4) comprises a mounting seat (401), the top of the mounting seat (401) being fixedly connected to the bottom of the box body (102), the bottom of the mounting seat (401) being provided with a square groove, and the inner side of the square groove of the mounting seat (401) being rotatably connected to a second conveying wheel (402).

4. A photovoltaic power generation combined substation according to claim 3, characterized in that: The first adjustment component (2) comprises an upper plate (201), a first motor (207) is mounted on the front of the top of the upper plate (201), an output shaft of the first motor (207) is fixedly connected to a rotating shaft, an outer side of the rotating shaft of the first motor (207) is fixedly connected to the top of the upper plate (201), a lower plate (206) is connected to the bottom of the upper plate (201), a mounting groove (204) is provided at the bottom of the lower plate (206), and a first conveying wheel (205) is rotatably connected to the inner side of the mounting groove (204).

5. A photovoltaic power generation combined substation according to claim 4, characterized in that: A first movable groove (202) is provided on the inner side of the upper plate (201); the length adjustment component (3) comprises a hydraulic cylinder (301); a side of the hydraulic cylinder (301) close to the first adjustment component (2) is fixedly connected to a liquid guide tube (302); a through hole is provided at the connection between the liquid guide tube (302) and the first movable groove (202); the first movable groove (202) and the liquid guide tube (302) are communicated with each other; a push plate (304) is fixedly connected to the top of the lower plate (206); the push plate (304) is slidably connected to the first movable groove (202).

6. A photovoltaic power generation combined substation according to claim 5, characterized in that: The top of the push plate (304) is fixedly connected to a limit plate (303), the front and back sides of the top of the limit plate (303) are fixedly connected to a limit block (305), the cross-sectional dimensions of the first movable groove (202) are clearance-matched with the cross-sectional dimensions of the limit plate (303), and the bottom of the first movable groove (202) is provided with a square groove that matches the cross-sectional dimension tolerance of the push plate (304).

7. A photovoltaic power generation combined substation according to claim 4, characterized in that: The second adjustment component (5) comprises a second motor (501), the output shaft of the second motor (501) being fixedly connected to a rotating shaft, the outer side of the rotating shaft of the second motor (501) being fixedly connected to a support plate (502), a bottom of the support plate (502) being provided with an angled portion on a side close to the chassis component (1), a friction protrusion (503) being fixedly connected to a side of the support plate (502) being provided with an angled portion on a side close to the chassis component (1), a second movable groove (203) being provided on a side of the lower plate (206) being close to the chassis component (1), and the rotating shaft of the second motor (501) being movably inserted through the top of the inner side of the second movable groove (203).

8. A photovoltaic power generation combined substation according to claim 2, characterized in that: The coverage area of ​​the conveying wheel assembly (4) is matched with the tolerance of the bottom area of ​​the box body (102).

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