Combined substation for photovoltaic power generation

Abstract

The application 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 the two sides of the case assembly, length adjusting assemblies are arranged on the sides, away from the case assembly, of the first adjusting assemblies, second adjusting assemblies are arranged on the sides, close to the case assembly, of the bottoms of the first adjusting assemblies, and conveying wheel assemblies are connected to the bottoms of the case assembly. When the case assembly encounters a step, the first adjusting assembly on the side close to the step is adjusted to be turned up and contacted with the step, the length adjusting assembly drives the first adjusting assembly to be lengthened, the second adjusting assembly is supported by the step to turn up and incline, and the conveying wheel assemblies are cooperated to drive the case assembly to climb up the step.

Description

Technical Field

[0001] This invention relates to the field of substation technology, and in particular to a combined substation for photovoltaic power generation. Background Technology

[0002] A combined substation for photovoltaic power generation is an integrated power equipment that mainly converts the direct current generated by solar panels into alternating current and then boosts the voltage before transmitting it to the power grid. As the scale of photovoltaic power plants changes, grid connection points are adjusted, and equipment failures occur during operation and maintenance, combined substations need to be moved and redeployed to adapt to new power generation and transmission demands.

[0003] Existing modular substations are typically moved using casters. However, modular substations are usually installed outdoors, where terrain is often complex. During movement, they may encounter steps or potholes, making it difficult to traverse these areas using only casters. Operators must either wait in place for the moving equipment or carry suitable equipment to assist in the movement when the modular substation needs to be moved, transferring the substation to the moving equipment to navigate the complex terrain. This increases the cost and reduces the convenience of moving modular substations.

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

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] This invention provides a combined substation for photovoltaic power generation, including a chassis assembly. First adjustment components are connected to both sides of the chassis assembly. A length adjustment component is provided on the side of the first adjustment component away from the chassis assembly. A second adjustment component is provided on the bottom side of the first adjustment component near the chassis assembly. A conveyor wheel assembly is connected to the bottom of the chassis assembly. When the chassis assembly encounters a step, the first adjustment component near the step is adjusted to flip upwards and contact the step. The length adjustment component causes the first adjustment component to increase in length, and the second adjustment component, with the support of the step, flips the chassis assembly upwards and tilts, cooperating with the conveyor wheel assembly to drive the chassis assembly up the step.

[0007] Preferably, the chassis assembly includes a chassis, a transformer unit is fixedly connected to the top of the inner side of the chassis, a top cover is fixedly connected to the top of the chassis by bolts, and mounting plates are fixedly connected to the front and back sides of both sides of the chassis.

[0008] The enclosure and top cover work together to protect the transformer unit from dust contamination.

[0009] Preferably, the conveying wheel assembly comprises a mounting seat, the top of the mounting seat is fixedly connected with the bottom of the box body, a square groove is arranged 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.

[0010] The second conveying wheel reduces the pushing resistance.

[0011] Preferably, the first adjusting assembly comprises an upper plate, a first motor is mounted on the front surface 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 with the top of the upper plate, a lower plate is connected to the bottom of the upper plate, an installation groove is arranged in the bottom of the lower plate, and a first conveying wheel is rotatably connected to the inner side of the installation groove.

[0012] Preferably, a first movable groove is arranged in the inner side of the upper plate, a hydraulic cylinder is fixedly connected to the side close to the first adjusting assembly, a liquid guide pipe is arranged in the hydraulic cylinder, a through hole is arranged in the connection part between the liquid guide pipe and the first movable groove, the first movable groove and the liquid guide pipe are in communication with each other, a push plate is fixedly connected to the top of the lower plate, and the push plate is slidably connected with the first movable groove.

[0013] Preferably, a limiting plate is fixedly connected to the top of the push plate, a limiting block is fixedly connected to the front and back surfaces of the top of the limiting plate, the cross-sectional size of the first movable groove is in clearance fit with the cross-sectional size of the limiting plate, and a square groove is arranged in the bottom of the first movable groove, which is in tolerance fit with the cross-sectional size of the push plate.

[0014] Preferably, the second adjusting assembly comprises 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 arranged in the bottom of the supporting plate close to the side of the case assembly, a friction protrusion is fixedly connected to the side of the inclined angle of the supporting plate close to the case assembly, a second movable groove is arranged in the side of the lower plate close to the case assembly, and the rotating shaft of the second motor is movably arranged in the top of the inner side of the second movable groove.

[0015] The case assembly 1 does not need to be directly lifted onto the steps by manpower, and the overall moving process is more labor-saving.

[0016] Preferably, the coverage area of the conveying wheel assembly is in tolerance fit with the area of the bottom of the box body.

[0017] When the case assembly moves on the road surface, part of the second conveying wheels are lifted up when encountering uneven road surfaces, but do not affect the normal passing, and effectively disperse the pressure of the object on the ground.

[0018] The beneficial effect of the present application is that: the combined substation for photovoltaic power generation provided by the present application, through the cooperation of the first adjusting assembly, the length adjusting assembly, the conveying wheel assembly and the second adjusting assembly, when the case assembly encounters a step, the first adjusting assembly on the side close to the step is adjusted to be upturned and contacted with the step, the length adjusting assembly drives the first adjusting assembly to increase in length, the second adjusting assembly supports the case assembly upturning and tilting by means of the step, and the conveying wheel assembly cooperates to drive the case assembly to climb the step, so that the staff can directly lift the case assembly onto the step, the overall moving process is more labor-saving, and during the non-moving period, the first adjusting assembly, the box body and the top cover jointly protect the transformer unit.

[0019] The combined substation for photovoltaic power generation provided by the present application is provided with the conveying wheel assembly, the conveying wheel assembly is provided in multiple groups and is uniformly distributed on the bottom of the box body, when the case assembly moves on the road surface and encounters uneven road surfaces, part of the second conveying wheels are lifted up but do not affect the normal passing, effectively dispersing the pressure of the object on the ground, the moving process is more smooth, and when the case assembly is supported by the second adjusting assembly and inclines, the multiple groups of conveying wheel assemblies are more likely to climb the stairs. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a perspective view of the overall structure of the present application;

[0021] Figure 2 is a schematic diagram of the overall structure climbing a slope in the present application;

[0022] Figure 3 is Figure 2 is a partial enlarged view of A in the present application;

[0023] Figure 4 is a structural schematic diagram of the first adjusting assembly in the present application;

[0024] Figure 5 is Figure 2 is a partial enlarged view of A in the present application.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1, case assembly; 101, top cover; 102, box body; 103, transformer unit; 104, mounting plate;

[0027] 2, first adjusting assembly; 201, upper plate; 202, first movable groove; 203, second movable groove; 204, mounting groove; 205, first conveying wheel; 206, lower plate; 207, first motor;

[0028] 3, length adjusting assembly; 301, hydraulic cylinder; 302, liquid guide pipe; 303, limiting plate; 304, push plate; 305, limiting block;

[0029] 4, conveying wheel assembly; 401, mounting seat; 402, second conveying wheel;

[0030] 5, second adjusting assembly; 501, second motor; 502, supporting plate; 503, friction convex. DETAILED DESCRIPTION

[0031] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that discussions of these implementations are merely provided to enable those skilled in the art to better understand so as to be able to implement the subject matter described herein, and variations of elements discussed can be made by one skilled in the art within the scope of the present specification. Various processes or components can be omitted, substituted, or added according to desired implementations. Additionally, features described with respect to some examples can be combined in other examples.

[0032] As shown in Figures 1 to 5 , a combined substation for photovoltaic power generation according to an embodiment of the present application, please refer to Figure 1 , Figure 2 , comprising a cabinet assembly 1, the two sides of the cabinet assembly 1 are connected with a first adjusting assembly 2, the side away from the cabinet assembly 1 of the first adjusting assembly 2 is provided with a length adjusting assembly 3, the bottom side of the first adjusting assembly 2 close to the cabinet assembly 1 is provided with a second adjusting assembly 5, the bottom of the cabinet assembly 1 is connected with a conveying wheel assembly 4, when the cabinet assembly 1 encounters a step, the first adjusting assembly 2 on the side close to the step is adjusted to be turned up and contacted with the step, the length adjusting assembly 3 drives the first adjusting assembly 2 to increase in length, the second adjusting assembly 5 supports the cabinet assembly 1 to be turned up and inclined by means of the step, and the conveying wheel assembly 4 cooperates to drive the cabinet assembly 1 to climb the step.

[0033] Please refer to Figure 3 , the cabinet assembly 1 comprises a box body 102, the top of the inner side of the box body 102 is fixedly connected with a voltage transformation unit 103, the top of the box body 102 is fixedly connected with a top cover 101 through bolts, and the front and back surfaces of the two sides of the box body 102 are fixedly connected with mounting plates 104.

[0034] Specifically, the box body 102 and the top cover 101 jointly protect the voltage transformation unit 103 from being polluted by dust, the mounting plates 104 are used for mounting the first adjusting assembly 2, and when the voltage transformation unit 103 needs to be repaired, the top cover 101 can be removed by disassembling the bolts, so that the voltage transformation unit 103 is exposed.

[0035] Please refer to Figure 3 , the conveying wheel assembly 4 comprises a mounting seat 401, the top of the mounting seat 401 is fixedly connected with the bottom of the box body 102, the bottom of the mounting seat 401 is provided with a square groove, and the inner side of the square groove of the mounting seat 401 is rotatably connected with a second conveying wheel 402.

[0036] Specifically, when the operator pushes the chassis assembly 1, the second conveyor wheel 402 can rotate to assist the chassis assembly 1 in moving and reduce pushing resistance.

[0037] Please refer to this carefully. Figure 2 , Figure 4 The first adjustment component 2 includes an upper plate 201. A first motor 207 is mounted on the front 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. A lower plate 206 is connected to the bottom of the upper plate 201. An installation groove 204 is provided at the bottom of the lower plate 206. A first conveying wheel 205 is rotatably connected to the inner side of the installation groove 204.

[0038] Specifically, when encountering a step, the first motor 207 is started to drive the upper plate 201 to flip up, and the angle between it and the chassis assembly 1 gradually increases. The bottom of the first conveyor wheel 205 is on the same horizontal line as the top of the first step encountered. At this time, the chassis assembly 1 is pushed forward until the first conveyor wheel 205 contacts the top of the first step encountered. When the chassis assembly 1 is tilted, the first conveyor wheel 205 at the bottom and the second conveyor wheel 402 on the side near the first adjustment component 2 can support the chassis assembly 1. When pushing the chassis assembly 1, it is driven forward by the first conveyor wheel 205 at the bottom and the second conveyor wheel 402 on the side near the first adjustment component 2.

[0039] Please refer to this carefully. Figure 2 , Figure 4 The upper plate 201 has a first movable groove 202 on its inner side. The length adjustment component 3 includes a hydraulic cylinder 301. A liquid guide pipe 302 is fixedly connected to the side of the hydraulic cylinder 301 near the first adjustment component 2. The liquid guide pipe 302 and the first movable groove 202 are both provided with through holes. The first movable groove 202 and the liquid guide pipe 302 are interconnected. 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.

[0040] Please refer to this carefully. Figure 4 The top of the push plate 304 is fixedly connected to the limiting plate 303, and the front and back of the top of the limiting plate 303 are fixedly connected to the limiting block 305. The cross-sectional dimensions of the first movable groove 202 are clearance-fitted with the cross-sectional dimensions of the limiting plate 303, and the bottom of the first movable groove 202 is provided with a square groove that is tolerance-fitted with the cross-sectional dimensions of the push plate 304.

[0041] 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 top, the limiting plate 303 still has space for the liquid guide tube 302 to inject liquid.

[0042] Specifically, when the hydraulic cylinder 301 is started, the liquid is introduced into the first movable groove 202 through the liquid guide pipe 302 to extrude 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 is extended, when the height of the first adjusting assembly 2 is extended, the upper plate 201 continuously rotates to drive the first adjusting assembly 2 to slide on the steps through the first conveying wheel 205, until it is extended to the connection position of the next step.

[0043] Please refer to Figure 2 、 Figure 3 、 Figure 5 , the second adjusting 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 supporting plate 502, an inclined angle is formed on the bottom of the supporting plate 502 close to one side of the cabinet assembly 1, the supporting plate 502 is fixedly connected with a friction protrusion 503 close to one side of the cabinet assembly 1, and the lower plate 206 is provided with a second movable groove 203 close to one side of the cabinet assembly 1.

[0044] Specifically, after the first adjusting assembly 2 stops moving, the second motor 501 is started to drive the supporting plate 502 to flip close to the cabinet assembly 1, wherein the width of the supporting plate 502 is gap-fitted with the width of the second movable groove 203 to ensure that the supporting plate 502 can normally rotate, at this time, the hydraulic cylinder 301 is started to suck back the liquid from the first movable groove 202, under the action of pressure, the push plate 304 moves upward in the first movable groove 202 to make the length of the first adjusting assembly 2 shorter, thereby avoiding the collision between the first adjusting assembly 2 and the step, at this time, the supporting plate 502 can support the first adjusting assembly 2, the first adjusting assembly 2 is supported by the cabinet assembly 1 to continue to flip upward, but at this time, the first motor 207 has been closed, the upper plate 201 cannot be angularly rotated relative to the top cover 101, so the cabinet assembly 1 is tilted together, when the second conveying wheel 402 close to the step on one side of the cabinet assembly 1 contacts the top of the step, the second motor 501 is closed, the cabinet assembly 1 is pushed to move on the step, without the need for manpower to directly lift the cabinet assembly 1 onto the step, the overall moving process is more labor-saving.

[0045] Please refer to Figure 3 , the coverage area of the conveying wheel assembly 4 is gap-fitted with the area of the bottom of the box body 102.

[0046] Specifically, the conveying wheel assembly 4 is provided with multiple groups and is uniformly distributed on the bottom of the box body 102, when the cabinet assembly 1 moves on the road surface, encounters uneven road surfaces, such as short and narrow steps, part of the second conveying wheels 402 are lifted but do not affect the normal passing of the whole, effectively dispersing the pressure of the object on the ground, the moving process is more smooth, and when the cabinet assembly 1 is supported by the second adjusting assembly 5 and is tilted, the multiple groups of conveying wheel assemblies 4 are more easily climbed onto the steps.

[0047] Working principle

[0048] In the initial state, the device is as shown Figure 1 When encountering an upward step, the first motor 207 is started to drive the upper plate 201 to rotate, and the angle between the upper plate 201 and the cabinet assembly 1 gradually increases. The bottom of the first conveying wheel 205 is at the same horizontal line as the top of the first step encountered. At this time, the cabinet assembly 1 is pushed to continue moving forward to the first conveying wheel 205 in contact with 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 extrude 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 is extended. When the height of the first adjusting assembly 2 is extended, the first motor 207 continues to drive the upper plate 201 to rotate. The first adjusting assembly 2 slides on the stairs through the first conveying wheel 205 until it extends to the connection position of the next step. At this time, the first motor 207 is closed.

[0049] After the first adjusting assembly 2 stops moving, the second motor 501 is started to drive the support plate 502 to flip to the side close to the cabinet assembly 1. The width of the support plate 502 is in clearance fit with the width of the second movable groove 203, which ensures that the support plate 502 can normally rotate. At this time, the hydraulic cylinder 301 is opened to suck back the liquid from the first movable groove 202. Under the action of pressure, the push plate 304 moves upward in the first movable groove 202 to make the length of the first adjusting assembly 2 shorter, so as to avoid the collision between the first adjusting assembly 2 and the step. The support plate 502 can support the first adjusting assembly 2 at this time. The first adjusting assembly 2 is supported by the cabinet assembly 1 to continue to flip upward, but the first motor 207 has been closed at this time, and the upper plate 201 cannot make angular rotation relative to the top cover 101. Therefore, the cabinet assembly 1 is tilted together with the first motor 207. When the second conveying wheel 402 close to the step on the side of the cabinet assembly 1 is in contact with the top of the step, the second motor 501 is closed, and the cabinet assembly 1 is pushed to move on the step. It is not necessary to directly lift the cabinet assembly 1 on the step by manpower, and the whole moving process is more labor-saving.

[0050] Similarly, when encountering a descending step, the upper plate 201 on the side close to the step first goes out of the current step and is located at the top of the first descending step. The hydraulic cylinder 301 on the side close to the first descending step is started to extend the length of the first adjusting assembly 2 until the first conveying wheel 205 contacts the top of the first descending step, and then the hydraulic cylinder 301 is closed. Then the machine box assembly 1 is continuously pushed to move forward until the middle part of the machine box assembly 1 is located at the edge of the current step. Then the hydraulic cylinder 301 on the side away from the first descending step is started to extend the length of the first adjusting assembly 2, and the hydraulic cylinder 301 on the side close to the first descending step is started to shorten the length of the first adjusting assembly 2, so that the machine box assembly 1 is turned over as a whole, which is convenient for directly pushing the machine box assembly 1 to move downward. When the upper plate 201 away from the first descending step contacts the edge of the current step, the machine box assembly 1 is continuously pushed and the first motor 207 on the front surface of the upper plate 201 is started to drive the upper plate 201 to turn over to the side away from the machine box assembly 1, so that the machine box assembly 1 slowly moves downward to a horizontal angle, until the upper plate 201 away from the first descending step completely separates from the current step, and then the initial state is restored.

[0051] The above describes the embodiments of the present embodiment, but the present embodiment is not limited to the above-described specific embodiments, and the above-described specific embodiments are only illustrative but not restrictive. Those skilled in the art can make many forms under the inspiration of the present embodiment, which are all within the protection scope of the present embodiment.

Claims

1. A combined substation for photovoltaic power generation, characterized by: The utility model provides a length adjustable box assembly, which comprises a box assembly (1), two sides of the box assembly (1) are connected with a first adjusting assembly (2), a length adjusting assembly (3) is arranged on the side, away from the box assembly (1), of the first adjusting assembly (2), a second adjusting assembly (5) is arranged on the side, close to the box assembly (1), of the bottom of the first adjusting assembly (2), and a conveying wheel assembly (4) is connected to the bottom of the box assembly (1); when the box assembly (1) encounters a step, the first adjusting assembly (2) on the side, close to the step, is turned up to contact the step, the length adjusting assembly (3) drives the first adjusting assembly (2) to increase in length, the second adjusting assembly (5) supports the box assembly (1) to turn up and incline by means of the step, and the conveying wheel assembly (4) is cooperated to drive the box assembly (1) to climb up the step; The box assembly (1) comprises a box body (102), a voltage conversion unit (103) is fixedly connected to the inner top of the box body (102), a top cover (101) is fixedly connected to the top of the box body (102) through bolts, and mounting plates (104) are fixedly connected to the front and back surfaces of the two sides of the box body (102); The conveying wheel assembly (4) comprises 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 formed in the bottom of the mounting seat (401), and a second conveying wheel (402) is rotatably connected to the inner side of the square groove of the mounting seat (401); The first adjusting assembly (2) comprises an upper plate (201), a first motor (207) is mounted to the front surface of the top of the upper plate (201), a rotating shaft is fixedly connected to the output shaft of the first motor (207), the 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), an installation groove (204) is formed in the bottom of the lower plate (206), and a first conveying wheel (205) is rotatably connected to the inner side of the installation groove (204); A first movable groove (202) is formed in the inner side of the upper plate (201), the length adjusting assembly (3) comprises a hydraulic cylinder (301), a liquid guide pipe (302) is fixedly connected to the side, close to the first adjusting assembly (2), of the hydraulic cylinder (301), through holes are formed in the connection positions of the liquid guide pipe (302) and the first movable groove (202), the first movable groove (202) and the liquid guide pipe (302) are in communication with each other, a push plate (304) is fixedly connected to the top of the lower plate (206), and the push plate (304) is slidably connected to the first movable groove (202); The second adjusting assembly (5) comprises a second motor (501), a rotating shaft is fixedly connected to the output shaft of the second motor (501), a supporting plate (502) is fixedly connected to the outer side of the rotating shaft of the second motor (501), an inclined angle is formed in the bottom of the supporting plate (502) and close to the side, close to the box assembly (1), of the supporting plate (502), a friction protrusion (503) is fixedly connected to the side, close to the box assembly (1), of the inclined angle of the supporting plate (502), a second movable groove (203) is formed in the side, close to the box assembly (1), of the lower plate (206), and the rotating shaft of the second motor (501) is movably arranged in the top of the inner side of the second movable groove (203).

2. The combined substation for photovoltaic power generation according to claim 1, characterized in that: The top of the push plate (304) is fixedly connected with a limiting plate (303), the front and back surfaces of the top of the limiting plate (303) are fixedly connected with limiting blocks (305), the sectional dimension of the first movable groove (202) is gap-fitted with the sectional dimension of the limiting plate (303), and the bottom of the first movable groove (202) is provided with a square groove which is tolerance-fitted with the sectional dimension of the push plate (304).

3. The combined substation for photovoltaic power generation according to claim 1, characterized in that: The covering area of the conveying wheel assembly (4) is tolerance-fitted with the bottom area of the box body (102).

Images