Patent Description:
A converter cabinet, a main control cabinet, a water-cooling cabinet, a switch cabinet, a fire hydrant cabinet and other electrical equipment are enclosed in the tower of the wind turbine. These equipment need to be placed inside the tower and at a certain height from the ground, which, on the one hand, facilitates the cabling of these cabinets, and on the other hand, avoids the equipment from being immersed when water enters the tower. Therefore, the electrical equipment needs the support device to support.

In the construction of wind power projects, situation that needs to add equipment or needs to change the tower model in the later stage according to the special circumstances of the project often occur. Especially for the case of adding equipment in the later stage, the support device needs to be retrofitted according to the existing conditions, for example, changing the dimension of the support device. Due to the unreasonable structural design of the existing support device, it is difficult to retrofit the support device according to the project requirements, which adversely affects versatility of the support device.

Therefore, there is an urgent need for a new support device and a wind turbine.

<CIT> provides a supporting platform of a wind turbine tower and a wind power generating set. The supporting platform comprises a bottom frame, a top frame and a supporting plate; wherein the bottom frame is supported on a foundation surface in the tower; a top frame is mounted on the bottom frame and supported by the bottom frame; and the platform panel is laid on the top frame, wherein the top frame comprises a left side frame, a right side frame and a plane frame, wherein the plane frame is used for connecting the left side frame and the right side frame at the upper part, and the plane frame is detachable.

<CIT> discloses a modular platform assembly for a wind turbine tower, which includes a core platform sub-assembly having an underlying structural support grid. A plurality of platform extension panels are disposed circumferentially around at least a portion of a perimeter of the core platform sub-assembly. Support extensions are configured on the support grid at a plurality of circumferential positions around the core platform sub-assembly, with the platform extension panels supported by the support extension. The support extensions are mountable to a wall within a wind turbine tower and are variably positional on the support grid so at to vary the effective diameter of the support grid.

A wind turbine including a support device is provided according to claim <NUM>. The support device is configured to support electrical equipment of the wind turbine, and the dimension and/or load-bearing capacity of the support device can be adjusted according to the requirements of the equipment, so the support device has better versatility.

The wind turbine includes electrical equipment, and the support device includes a support frame and a support platform. The support frame has a hollow frame structure and includes multiple beam members, adjacent beam members are connected to each other, and the relative position between at least one group of two beam members connected to each other is adjustable. The support platform is arranged on a surface of the support frame in a height direction of the support frame and connected with the beam members, and the support platform is configured to support the electrical equipment.

In an embodiment according to one aspect of the present application, the support device further includes a first connecting member, and at least two beam members intersect with each other and are connected by the first connecting member, and the relative position between the first connecting member and at least one beam member is adjustable, and the first connecting member is detachably connected with the at least one beam member.

In any one of the foregoing embodiments according to one aspect of the present application, the beam member defines a first sliding groove, and the first connecting member includes a first extension portion and a second extension portion which intersect with each other. The first extension portion is snapped in a first sliding groove of one of the two intersecting beam members, and the first extension portion is in sliding fit with the first sliding groove. The second extension portion is snapped in a first sliding groove of the other of the two intersecting beam members, and the second extension portion is in sliding fit with the corresponding first sliding groove. The support device further includes a first fastener, the first extension portion is provided with the first fastener, and/or, the second extension portion is provided with the first fastener, so as to lock the relative position between the first connecting member and the corresponding beam member.

In any one of the foregoing embodiments according to one aspect of the present application, the support device further includes a second connecting member, at least two beam members extend in a same direction and are arranged in sequence in the extension direction, and the two beam members that extend in the same direction and are arranged in sequence in the extension direction are connected to each other by the second connecting member, wherein the relative position between the second connecting member and the at least one beam member is adjustable and the second connecting member is detachably connected with the at least one beam member.

In any one of the foregoing embodiments according to one aspect of the present application, the beam member defines the first sliding groove, the second connecting member is of a strip shape and includes a first connecting end and a second connecting end that are oppositely arranged, the first connecting end is inserted in the first sliding groove of one of the two beam members that extend in the same direction and are arranged in sequence in the extension direction and the first connecting end is in sliding fit with the first sliding groove, and the second connecting end is inserted in the first sliding groove of the other of the two beam members that extend in the same direction and are arranged in sequence in the extension direction and the second connecting end is in sliding fit with the corresponding first sliding groove. The support device further includes a second fastener, the first connecting end is provided with the second fastener, and/or, the second connecting end is provided with the second fastener, so as to lock the relative position between the second connecting member and the beam member.

In any one of the foregoing embodiments according to one aspect of the present application, the beam member is of a prismatic shape, at least one side wall surface of the beam member defines the first sliding groove recessed inwards, and the first sliding groove penetrates through the beam member in the extension direction.

In any one of the foregoing embodiments according to one aspect of the present application, the beam member is made of a first material, and the first material includes at least one of aluminum alloy, magnesium aluminum alloy, titanium alloy, aluminum silicon alloy, aluminum copper alloy, and aluminum zinc alloy.

In any one of the foregoing embodiments according to one aspect of the present application, the beam member has a profile structure and has at least one cavity inside, and a projection of the side wall defining the cavity in the extension direction of the beam member is a polygon or a honeycomb shape.

According to the invention, the support platform includes a body portion and a surrounding plate arranged around the body portion, and the surrounding plate is movably connected with the body portion, so that the dimension of the outer edge of the support platform is adjustable.

According to the invention, the body portion includes a support plate and an enclosing part wrapping the outer periphery of the support plate. The enclosing part has a horizontal extension portion and a vertical installation portion stacked above the horizontal extension portion in the height direction. The vertical installation portion defines an adjustment groove, and the surrounding plate is inserted into the adjustment groove and is in clearance fit with the adjustment groove. In the height direction, at least part of the surrounding plate overlaps with and is detachably connected with the body portion.

In any one of the foregoing embodiments according to one aspect of the present application, the surrounding plate includes a pressing portion and an adjustment portion that are intersected and connected with each other, the adjustment portion is arranged around the body portion, and the adjustment portion is inserted into the adjustment groove and is detachably connected with the body portion, and/or, the surrounding plate includes multiple arc-shaped units, and the multiple arc-shaped units are sequentially arranged along the outer edge of the body portion, and the relative position between each arc-shaped unit and the body portion is adjustable.

In any one of the foregoing embodiments according to one aspect of the present application, the beam member at least connected to the support platform, among the multiple beam members, further includes a second sliding groove, and the support device further includes a third connecting member and a third fastener. The third connecting member includes a first snapping end and a second snapping end that are sequentially arranged. At least part of the first snapping end extends in the second sliding groove and engages with the side wall defining the second sliding groove. The second snapping end abuts against the support platform and is detachably connected to the support platform through the third fastener.

In any one of the foregoing embodiments according to one aspect of the present application, the support device further includes a height adjusting member which is arranged on one side of the support frame away from the support platform and connected to at least part of the beam members to adjust the height of the support platform.

In any one of the foregoing embodiments according to one aspect of the present application, the support device further includes a flip cover plate, the support platform defines at least one notch, and the flip cover plate is movably connected in at least one notch.

In any one of the foregoing embodiments according to one aspect of the present application, the support device further includes a bridge frame, which is movably connected to at least one beam member.

In any one of the foregoing embodiments according to one aspect of the present application, the support device further includes a reinforcing support member which is connected between the support frame and the support platform.

In any one of the foregoing embodiments according to one aspect of the present application, the support device further includes an installation port, and the installation port is movably connected with at least one beam member.

According to the invention, the wind turbine includes a tower, the tower includes a tower body and an accommodation space defined by the tower body, wherein the support device is arranged in the accommodation space; and electrical equipment, wherein the support platform of the support device is configured to support the electrical equipment.

The support device includes the support frame and the support platform, the support platform is configured to support and place the electrical equipment, and the support frame is configured to support the support platform and the electrical equipment thereon at a predetermined height. Besides, since the support frame has a hollow frame structure and includes multiple beam members and the relative position between at least one group of two beam members connected to each other is adjustable, the dimension and/or load-bearing capacity of the support frame is adjustable, that is, the dimension and/or load-bearing capacity of the support frame can be adjusted by adjusting the relative position between the beam members connected to each other according to the project requirements, thereby improving the overall versatility of the support device.

Features, advantages, and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

In the drawings, same components are denoted by the same reference numerals. The drawings are not drawn to actual scale.

Characteristics and exemplary embodiments of the present application are described in detail hereafter. Specific details are provided in the following description for a thorough understanding of the present application. description of the exemplary embodiments is only intended to provide a better understanding of the present application. In the drawings and the following description, at least part of well-known structures and techniques are omitted to avoid unnecessarily obscuring the present application. The dimensions of part of the structures may be enlarged for a clear illustration.

All the orientation words appearing in the following description are the directions shown in the drawings and are not intended to limit the specific structures of the support device and the wind turbine of the present application. In a description of the present application, it should be further noted that, unless otherwise explicitly specified and defined, terms such as "installation" and "connection" should be understood in a broad sense, for example, the terms may imply a fixed connection, a detachable connection, or an integral connection; a direct connection or an indirect connection. For the person skilled in the art, the terms in the present application should be explained in the light of specific situation.

In order to better understand the present application, the wind turbine and the support device of the wind turbine according to the embodiments of the present application are described in detail below with reference to <FIG>.

Referring to <FIG>, a wind turbine according to an embodiment of the present application includes a tower <NUM>, a support device <NUM>, and electrical equipment <NUM>. The tower <NUM> includes a tower body 2a and an accommodation space 2b defined by the tower body 2a. The support device <NUM> is arranged in the accommodation space 2b, and the electrical equipment <NUM> is mounted on the support device <NUM>. The electrical equipment <NUM> is supported at a certain height from the ground by the support device <NUM>, which not only facilitates the cabling of the electrical equipment <NUM>, but also avoids the electrical equipment <NUM> from being immersed when water enters the tower <NUM> and further affecting the safety performance of the wind turbine.

Optionally, the electrical equipment <NUM> may be at least one of the following: a converter cabinet, a main control cabinet, a water-cooling cabinet, a switch cabinet, and a fire hydrant cabinet. The number of electrical equipment <NUM> may be determined according to the power generation requirements of the wind turbine, which is not limited herein.

In a case that the dimension of the tower <NUM> or the number or weight of the electrical equipment <NUM> need to be changed, an existing support device cannot adapt to the above parameter changes according to the engineering requirements, resulting in poor versatility of the support device <NUM>, which adversely affects the power generation efficiency of the wind turbine.

better understand the support device <NUM> of the wind turbine according to the embodiments of the present application, the support device <NUM> according to the embodiments of the present application is described in detail below with reference to <FIG>.

Referring to <FIG>, a support device <NUM> is provided according to the embodiments of the present application, which includes a support frame <NUM> and a support platform <NUM>. The support frame <NUM> has a hollow frame structure and includes multiple beam members <NUM>, adjacent beam members <NUM> are connected to each other, and the relative position between at least one group of two beam members <NUM> connected to each other is adjustable. The support platform <NUM> is arranged on a surface of the support frame <NUM> in a height direction Y of the support frame and connected with the beam members <NUM>, and the support platform <NUM> is configured to support the electrical equipment <NUM>.

In the support device <NUM> according to the embodiments of the present application, the relative position between at least one group of two beam members <NUM> connected to each other of the support frame <NUM> is adjustable, so that the dimension and/or load-bearing capacity of the support frame <NUM> can be adjusted by adjusting the relative position between the beam members <NUM> connected to each other, thereby improving the overall versatility of the support device <NUM>.

Optionally, the dimension of the support device <NUM> can be adjusted by adjusting the relative distance between two beam members <NUM> connected to each other, so that the support device <NUM> can be adapted to different situations, for example, the tower <NUM> has a different radial dimension or the electrical equipment <NUM> is required to be located further from the ground.

Of course, in some embodiments, at least local strength of the support device <NUM> can be adjusted by adjusting the connection position between two beam members <NUM> connected to each other, thereby changing the load-bearing capacity of the corresponding position.

Optionally, in the support device <NUM> according to the above embodiments, the number of beam members <NUM> included in the support frame <NUM> is not limited to specific numerical values, and the lengths and extension directions of the multiple beam members <NUM> may be different. For example, some of the multiple beam members <NUM> are arranged along the height direction Y of the support frame <NUM>, at least part of the beam members <NUM> are arranged along the horizontal extension direction X of the support platform <NUM>, and the beam members <NUM> arranged in the horizontal extension direction X are intersected and connected with the beam members <NUM> arranged in the height direction Y.

Referring to <FIG>, as an alternative embodiment, the support device <NUM> according to the above embodiments further includes a first connecting member <NUM>, and at least two beam members <NUM> are intersected and connected with each other through the first connecting member <NUM>. The relative position between the first connecting member <NUM> and at least one beam member <NUM> is adjustable, and the first connecting member is detachably connected with the at least one beam member. By providing the first connecting member <NUM>, two beam members <NUM> intersected and connected with each other may be connected to each other through the first connecting member <NUM>, so as to ensure the stability of the support frame <NUM>. In addition, by limiting that the relative position between the first connecting member <NUM> and at least one beam member <NUM> is adjustable and the first connecting member is detachably connected with the at least one beam member, the position adjustment between the two beam members <NUM> connected to each other and the assembly requirements can be facilitated.

In some optional embodiments, in the support device <NUM> according to the above embodiments, the beam member <NUM> defines a first sliding groove <NUM>, and the first connecting member <NUM> includes a first extension portion <NUM> and a second extension portion <NUM> which intersect with each other. The first extension portion <NUM> is snapped in a first sliding groove <NUM> of one of the two intersecting beam members <NUM>, and the first extension portion <NUM> is in sliding fit with the first sliding groove. The second extension portion <NUM> is snapped in a first sliding groove of the other of the two intersecting beam members <NUM>, and the second extension portion <NUM> is in sliding fit with the corresponding first sliding groove. The support device <NUM> further includes a first fastener <NUM>, and the first extension portion <NUM> is provided with the first fastener <NUM>. Through the above arrangement, the form of the first connecting member <NUM> can be simplified, and the connection between the two beam members <NUM> intersected and connected with each other can be facilitated. Moreover, when the distance between the two intersecting beam members <NUM> needs to be adjusted, the first extension portion <NUM> can be unlocked by screwing the first fastener <NUM>, so that the first extension portion <NUM> can move along the first sliding groove <NUM> of the beam member <NUM> cooperating with the first extension portion, which in turn drives the beam member <NUM> connected to the second extension portion <NUM> to move, so as to change the connection position between the two intersecting beam members <NUM> and adjust the local strength of the support frame <NUM>.

Optionally, in the support device <NUM> according to the embodiments of the present application, the first fastener <NUM> is provided on the second extension portion <NUM> to lock the relative position between the first connecting member <NUM> and the beam member <NUM>. Through the above arrangement, the two beam members <NUM> connected to each other can be more stable after position adjustment, thereby improving the safety performance of the support device <NUM>.

As an alternative embodiment, the first extension portion <NUM> may be of a strip structure, and be provided with a first opening <NUM> that matches the shape of the first fastener <NUM> and cooperates with the first fastener. Optionally, the second extension portion <NUM> may be of a strip structure and be provided with a second opening <NUM> that matches the shape of the first fastener <NUM> and cooperates with the first fastener, so as to facilitate the locking and unlocking requirements of the relative position with the corresponding beam member <NUM>.

Optionally, the first extension portion <NUM> and the second extension portion <NUM> may be perpendicular to each other, which can facilitate the connection and position adjustment between the two intersecting beam members <NUM> and can optimize the overall strength of the support device <NUM>.

Optionally, each of the first extension portion <NUM> and the second extension portion <NUM> may be provided with a first position-limiting protrusion <NUM>, so that the first extension portion <NUM> cannot be detached from the first sliding groove <NUM> in a direction intersecting with the extension direction or the length direction of the beam member <NUM> connected with the first extension portion, and the second extension portion <NUM> cannot be detached in a direction intersecting with the extension direction or the length direction of the beam member <NUM> connected with the second extension portion.

In the support device <NUM> according to the embodiments of the present application, at least two beam members <NUM> are intersected and connected with each other through the first connecting member <NUM>, so that the connection position between the two beam members <NUM> can be adjusted by the first connecting member <NUM>. One beam member <NUM> can be moved to any position of the other beam member <NUM> through the first connecting member <NUM>. For example, when the support device <NUM> requires a higher load-bearing capacity at some positions, multiple beam members <NUM> can be moved to these positions, so the beam members <NUM> at these positions become denser and the load-bearing capacity here is further improved. Moreover, the intersecting beam members <NUM> are connected in this way, so that when the support device <NUM> is applied to a wind turbine, the positions of the beam members <NUM> can be adjusted to avoid other components such as wiring, thus the support device <NUM> can be used flexibly.

Referring to <FIG>, in some optional embodiments, the support device <NUM> according to the embodiments of the present application further includes a second connecting member <NUM>, at least two beam members <NUM> of the multiple beam members <NUM> of the support frame <NUM> extend in a same direction and are arranged in sequence in the extension direction, and the two beam members <NUM> that extend in the same direction and are arranged in sequence in the extension direction are connected to each other by the second connecting member <NUM>, and, the relative position between the second connecting member <NUM> and the at least one beam member <NUM> is adjustable and the second connecting member is detachably connected with the at least one beam member. Through the above arrangement, the dimension of the support device <NUM> can be adjusted by adjusting the relative distance between two beam members connected to each other, so that the support device <NUM> can be adapted to different situations, for example, the tower <NUM> has a different radial dimension or the electrical cabinet is required to be located further from the ground.

For example, as shown in <FIG>, two beam members <NUM> extending in the height direction Y and arranged in sequence are connected to each other by the second connecting member <NUM>, and the distance between the two beam members <NUM> extending in the height direction Y can be increased by adjusting the relative position between the second connecting member <NUM> and one or two of the beam members <NUM>, so that the overall dimension of the two beam members <NUM> and the second connecting member <NUM> connecting the two beam members becomes longer in the height direction Y, which meets the requirement of adjusting the overall height of the support device <NUM>.

Of course, when the height value required to be increased in the height direction Y is greater, since the second connecting member <NUM> is detachably connected to the beam member <NUM>, the second connecting member <NUM> may be detached and separated from one of the beam members <NUM>, and then another beam member <NUM> with a predetermined required length and another second connecting member <NUM> may be added between the two beam members <NUM> extending in the height direction Y, both ends of the additional beam member <NUM> are connected to the initial beam members <NUM> of the support device <NUM> through the second connecting member <NUM>, which can also increase the height of the support device <NUM> in the height direction Y.

That is, when the dimension to be adjusted is in a small degree, the dimension to be adjusted can be realized by adjusting the relative position between the second connecting member <NUM> and the beam member <NUM>, that is, by adjusting the dimension of the second connecting member <NUM> extending out of the beam member <NUM>. When the dimension to be adjusted is in a large degree, the dimension to be adjusted can be realized by increasing the number of the beam members <NUM> and connecting these newly added beam members to the initial beam members <NUM> through the second connecting member <NUM>, thereby improving the versatility of the support device <NUM>.

It is conceivable that, in the above embodiments, the two beam members <NUM> extending in the height direction Y are connected by the second connecting member <NUM>. Of course, in some other embodiments, the two beam members <NUM> extending in the horizontal extension direction X may be connected by the second connecting member <NUM>, so that the size of the support frame <NUM> in the horizontal extension direction X is adjustable. The principle is the same as the above, which will not be repeated again.

Referring to <FIG>, as an alternative embodiment, in the support device <NUM> according to the above embodiments, the beam member <NUM> defines the first sliding groove <NUM>, the second connecting member <NUM> is of a strip shape and includes a first connecting end <NUM> and a second connecting end <NUM> that are oppositely arranged, the first connecting end <NUM> is inserted in the first sliding groove <NUM> of one of the two beam members <NUM> that extend in the same direction and are arranged in sequence in the extension direction and the first connecting end is in sliding fit with the first sliding groove, and the second connecting end <NUM> is inserted in the first sliding groove <NUM> of the other of the two beam members <NUM> that extend in the same direction and are arranged in sequence in the extension direction and the second connecting end is in sliding fit with the corresponding first sliding groove. The support device <NUM> further includes a second fastener <NUM>, the first connecting end <NUM> is provided with the second fastener <NUM>, and/or, the second connecting end <NUM> is provided with the second fastener <NUM>, so as to lock the relative position between the second connecting member <NUM> and the beam member <NUM>. Similarly, through the above arrangement, the form of the second connecting member <NUM> can be simplified, and the connection between the two beam members <NUM> extending in the same direction and arranged in sequence can be facilitated.

Moreover, when the distance between the two beam members <NUM> extending in the same direction and connected to each other needs to be adjusted, the first connecting end <NUM> can move along the first sliding groove <NUM> of the beam member <NUM> cooperating with the first connecting end by screwing the second fastener <NUM>, and the second connecting end <NUM> can move along the first sliding groove <NUM> of the corresponding beam member <NUM> cooperating with the second connecting end, so as to change the distance between the two beam members <NUM> extending in the same direction. Furthermore, the dimension of the support frame <NUM> in the height direction Y or the horizontal extension direction X can be better adjusted.

Optionally, the second connecting member <NUM> may be of a strip-shaped structure, the first connecting end <NUM> defines a third opening <NUM> that matches the shape of the second fastener <NUM> and cooperates with the second fastener, and the second connecting end <NUM> defines a fourth opening <NUM> that matches the shape of the second fastener <NUM> and cooperates with the second fastener, so as to facilitate the locking and unlocking requirements of the relative position with the corresponding beam member <NUM>.

Optionally, the first connecting end <NUM> and/or the second connecting end <NUM> is provided with a second position-limiting protrusion <NUM>, so that the second connecting member <NUM> cannot be detached from the first sliding groove <NUM> of the beam member <NUM> in a direction intersecting with the extension direction or the length direction of the beam member <NUM> connected with the second connecting member, thereby guaranteeing the safety of the support device <NUM>.

Referring to <FIG>, in some optional embodiments, in the support device <NUM> according to the above embodiments, the beam member <NUM> is of a prism shape, at least one side wall of the beam member <NUM> defines the first sliding groove <NUM> recessed inwards, and the first sliding groove <NUM> penetrates through the beam member <NUM> in the extension direction M or the length direction. Through the above arrangement, the disassembly and assembly of the first connecting member <NUM> and the second connecting member <NUM> can be facilitated, so that the first connecting member <NUM> and the second connecting member <NUM> can be inserted or slide into the first sliding groove <NUM> of the corresponding beam member <NUM> along the extension direction M of the beam member <NUM> with which the connecting members cooperate, which can not only facilitate the overall forming of the support frame <NUM>, but also facilitate the adjustment of the dimension and/or load-bearing capacity of the support frame <NUM>.

Optionally, one first sliding groove <NUM> of the beam member <NUM> may be provided. Of course, in some other embodiments, multiple first sliding grooves <NUM> may be provided. Moreover, the number of the first sliding groove <NUM> on each wall surface of the beam member <NUM> may be one or more, which can be specifically determined based on the number of the connected first connecting members <NUM> and/or the connected second connecting members <NUM>, as long as the provided first sliding grooves can meet the connection requirements and position adjustment requirements of the beam members <NUM> of the support frame <NUM>.

Since the first sliding groove <NUM> is formed by recessing the side wall surface of the beam member <NUM> toward the inside of the beam member <NUM>, the first sliding groove <NUM> is through in the extension direction X of the beam member <NUM> and penetrates through the side wall of the beam member <NUM> to form a socket <NUM> to facilitate the installation of the first connecting member <NUM> and the second connecting member <NUM>, facilitate the insertion, locking and unlocking of the first connecting member <NUM> by the first fastener <NUM>, and facilitate the insertion, locking and unlocking of the second connecting member <NUM> by the second fastener <NUM>.

Furthermore, due to the above-mentioned structural form of the first sliding groove, there is no need to connect the beam members <NUM> by welding, which can reduce pollution and prevent the beam members <NUM> from deformation by welding, and further guarantee the supporting strength of the support device <NUM>.

Optionally, in order to restrict the first connecting member <NUM> and the second connecting member <NUM> from separating from the beam member <NUM> with which the connecting members cooperate in a direction intersecting with the extension direction X of the beam member <NUM>, a side wall surface of the beam member <NUM> may be provided with a third position-limiting protrusion <NUM> extending into the socket <NUM> formed by the first sliding groove <NUM>. The first connecting member <NUM> and the second connecting member <NUM> can be prevented from detaching in a direction intersecting with the extension direction of the beam member <NUM> through the cooperation of the third position-limiting protrusion <NUM> and the first connecting member <NUM> and the second connecting member <NUM>.

Optionally, in a case that the first connecting member <NUM> includes the first position-limiting protrusion <NUM>, the third position-limiting protrusion <NUM> may be configured to cooperate with the first position-limiting protrusion <NUM>, so as to restrict the first connecting member <NUM> from detaching from the beam member <NUM> as a whole in a direction intersecting with the extension direction of the beam member <NUM> where the first connecting member is located. Similarly, in a case that the second connecting member <NUM> includes the second position-limiting protrusion <NUM>, the third position-limiting protrusion <NUM> may be configured to cooperate with the second position-limiting protrusion <NUM>, so as to restrict the second connecting member <NUM> from detaching from the beam member <NUM> as a whole in a direction intersecting with the extension direction of the beam member <NUM> where the second connecting member is located.

As an alternative embodiment, in the support device <NUM> according to the above embodiments, the beam member <NUM> is made of a first material, and the first material includes at least one of aluminum alloy, magnesium aluminum alloy, titanium alloy, aluminum silicon alloy, aluminum copper alloy, and aluminum zinc alloy. Through the above arrangement, the weight of the support device <NUM> can be further reduced, making the support device light and easy to install. The forming efficiency of the support device <NUM> is effectively improved. Moreover, since the beam member <NUM> is made of the above-mentioned materials, the oxide film formed by the beam member <NUM> itself can still ensure good anti-corrosion performance, and there is no need to perform anti-corrosion treatment. The beam member is suitable for use in various harsh climate environments, and has no pollution to the environment, and meets the requirements of environmental protection policies.

In some optional embodiments, in the support device <NUM> according to the above embodiments, the beam member <NUM> has a profile structure, which is low in cost and easy to form, and more importantly, realizes generalization and standardization. After the structure is determined, the beam member can be designed as a versatile structure and can be massproduced. The structure of the beam member <NUM> will not change due to the change of the diameter of the tower <NUM>, which is beneficial to production and will not cause material waste.

As an optional embodiment, in the support device <NUM> according to the above embodiments, the beam member <NUM> has at least one cavity <NUM> inside, the weight of the support device <NUM> can be further ensured by providing the cavity <NUM> inside the beam member <NUM> on the basis of guaranteeing the overall strength of the formed support device <NUM>, and the cost can be saved.

Optionally, a projection of the side wall defining the cavity <NUM> in the extension direction of the beam member <NUM> is like a polygon, for example, a regular quadrilateral such as a rhombus and the like, which apparently is an optional way. The projection is not limited to the above shape, and the shape is applicable as long as the strength of the beam member <NUM> can be guaranteed.

Referring to <FIG>, in some embodiments such as the embodiments shown in <FIG> and <FIG>, in a case that the projection of the sidewall defining the cavity <NUM> in the extension direction of the beam member <NUM> is quadrilateral, the projection may be a rectangular shape. Of course, in some embodiments, as shown in <FIG>, the projection of the sidewall defining the cavity <NUM> in the extension direction of the beam member <NUM> may be an irregular polygon, for example, an irregular polygon. Moreover, in some embodiments, the projection of the sidewall defining the cavity <NUM> in the extension direction of the beam member <NUM> may be a honeycomb shape as shown in <FIG>.

Moreover, as an optional embodiment, in the support device <NUM> according to the above embodiments, the number of cavity <NUM> of each beam member <NUM> may be one or more. In a case that multiple cavities are provided, shapes of these cavities <NUM> may be the same or different. For example, some cavities <NUM> may be of a regular-polygon shape, some cavities <NUM> may be of an irregular-polygon shape, and some cavities <NUM> may be of a honeycomb shape, as long as the strength requirements of the beam member <NUM> and the requirements of reducing weight and cost can be met.

Referring to <FIG>, as an alternative embodiment, in the support platform <NUM> according to the above embodiments, at least the beam member <NUM> connected to the support platform <NUM> among the multiple beam members <NUM> further includes a second sliding groove <NUM>, and the support device <NUM> further includes a third connecting member <NUM> and a third fastener <NUM>. The third connecting member <NUM> includes a first snapping end <NUM> and a second snapping end <NUM> that are sequentially arranged. At least part of the first snapping end <NUM> extends in the second sliding groove <NUM> and engages with the side wall defining the second sliding groove <NUM>. The second snapping end <NUM> abuts against the support platform <NUM> and is detachably connected to the support platform <NUM> through the third fastener <NUM>. Through the above arrangement, the requirements of connection strength between the support platform <NUM> and the support frame <NUM> can be guaranteed, and the second snapping end <NUM> abuts against the support platform <NUM> and is detachably connected to the support platform <NUM> through the third fastener <NUM>, which facilitates the disassembly and assembly between the support platform <NUM> and the support frame <NUM> and facilitates the transportation of the support device <NUM>.

Optionally, in a case that the beam member <NUM> includes the second sliding groove <NUM>, the number of the second sliding groove <NUM> of the beam member may be one or more, such as two. Two second sliding grooves <NUM> may be symmetrically arranged, the extension direction of the first sliding groove <NUM> of a beam member <NUM> may be the same as the extension direction of the second sliding groove <NUM> of the same beam member <NUM>, and each first sliding groove <NUM> of the same beam member <NUM> may be arranged between the two second sliding grooves <NUM>. Each second sliding groove <NUM> is provided with at least one third connecting member <NUM> connected to the support platform <NUM>. Through the above arrangement, the connection strength between the support frame <NUM> and the support platform <NUM> is improved.

As an alternative embodiment, as shown in <FIG>, the first snapping end <NUM> of the third connecting member <NUM> may be of a U-shaped plate structure, and the second snapping end <NUM> may be of a flat plate structure. A side wall of the first snapping end <NUM> may extend into the second sliding groove <NUM> and engage with the second sliding groove <NUM>, and the second snapping end <NUM> may be attached to a body portion <NUM> and be detachably connected to the body portion through the third fastener <NUM>.

Optionally, in the above embodiments, the first fastener <NUM>, the second fastener <NUM>, and the third fastener <NUM> may be bolts, screws, jackscrews, and the like.

Referring to <FIG>, <FIG>, according to the invention, the support platform <NUM> includes a body portion <NUM> and a surrounding plate <NUM> arranged around the body portion <NUM>, and the surrounding plate <NUM> is movably connected with the body portion <NUM>, so that the dimension of the outer edge of the support platform <NUM> is adjustable. Through the above arrangement, the support device <NUM> can better adapt to the dimension change of the tower <NUM> of the wind turbine, so that the overall dimension of the outer edge of the support platform <NUM> can be adjusted according to the dimension of the tower <NUM>, and the outer edge of the support platform <NUM> can abut against the inner wall of the tower body 2a of the tower <NUM> or the gap between the outer edge of the support platform and the inner wall of the tower body 2a is kept within a required range, thereby meeting the support requirements of the electrical equipment <NUM>.

According to the invention, the body portion <NUM> includes a support plate <NUM> and an enclosing part <NUM> wrapping the outer periphery of the support plate <NUM>. The enclosing part <NUM> has a horizontal extension portion 212a and a vertical installation portion 212b stacked above the horizontal extension portion 212a in the height direction Y. The vertical installation portion 212b defines an adjustment groove 212c, and the surrounding plate <NUM> is inserted into the adjustment groove 212c and is in clearance fit with the adjustment groove 212c. In the height direction Y, at least part of the surrounding plate <NUM> overlaps with and is detachably connected with the body portion <NUM>.

Through the above arrangement, the structure of the body portion <NUM> can be simplified, and the connection between the body portion <NUM> and the surrounding plate <NUM> and the adjustment of the relative position between the body portion and the surrounding plate can be facilitated. The surrounding plate <NUM> can slide along the adjustment groove 212c on the vertical installation portion 212b to adjust the overall dimension of the outer edge of the support platform <NUM>, that is, to adjust the overall dimension of the support platform <NUM> in the radial direction of the tower <NUM>, so that the support device can better adapt to the tower <NUM> with different radial dimensions. Besides, the problem of interference between the support device <NUM> and the tower <NUM> during assembly due to errors during processing and manufacturing can be avoided, so that the support device <NUM> has better versatility and adaptability.

According to the invention, in the height direction Y, at least part of the surrounding plate <NUM> overlaps with the body portion <NUM>. The relative position between the overlapped portions can be locked by screw rods, positioning pins and other fasteners.

In some optional embodiments, in the support device <NUM> according to the above embodiments, the surrounding plate <NUM> includes a pressing portion <NUM> and an adjustment portion <NUM> that are intersected and connected with each other, the adjustment portion <NUM> is arranged around the body portion <NUM>, and the adjustment portion <NUM> is inserted into the adjustment groove 212c and is detachably connected with the body portion <NUM>. The above structural form of the surrounding plate <NUM> can meet the requirements of adjusting the relative position between the surrounding plate and the body portion <NUM>, and can ensure that the pressing portion <NUM> better abuts against the inner wall of the tower body of the tower <NUM> to meet the ensure the safety support requirements of the support device <NUM> for the electrical equipment <NUM>.

Optionally, the pressing portion <NUM> and the adjustment portion <NUM> may both be of a plate-like structure, which can reduce the weight of the surrounding plate <NUM> and reduce the cost. Optionally, the pressing portion <NUM> and the adjustment portion <NUM> may be perpendicular to each other, which can ensure the reliability of the coordination between the surrounding plate <NUM> and the tower <NUM>.

As an optional embodiment, in the support device <NUM> according to the above embodiments, the surrounding plate <NUM> includes multiple arc-shaped units <NUM>, and the multiple arc-shaped units <NUM> are sequentially arranged along the outer edge of the body portion <NUM>, and the relative position between each arc-shaped unit <NUM> and the body portion <NUM> is adjustable. Through the above arrangement, the connection and position adjustment between the surrounding plate <NUM> and the body portion <NUM> can be facilitated, and the smooth movement of the body portion <NUM> relative to the surrounding plate <NUM> can be ensured to adjust the overall dimension of the outer edge of the support platform <NUM>. Optionally, each arc-shaped unit <NUM> is inserted into the adjustment groove 212c and is slidably connected to the adjustment groove 212c, and the relative position between each arc-shaped unit <NUM> and the body portion <NUM> can be locked by screw rods, positioning pins and other fasteners.

Referring to <FIG>, as an optional embodiment, the support device <NUM> according to the above embodiments of the present application further includes an installation port <NUM>, and the installation port <NUM> is movably connected with at least one beam member <NUM>. By providing the installation port <NUM>, the installation of the electrical equipment <NUM> can be facilitated, and the installation port <NUM> is movably connected to the corresponding beam member <NUM>, so that the installation port <NUM> can be adjusted according to the position setting requirements of the electrical equipment <NUM> to ensure the connection requirements of the electrical equipment <NUM> and the support device <NUM>.

In some optional embodiments, a notch <NUM> is provided on the support plate <NUM>, and multiple notches <NUM> may be provided. The beam members <NUM> connected to the support platform <NUM> can be exposed on the surface of the support platform <NUM> away from the support frame <NUM> through some of the notches <NUM>. In some optional embodiments, the installation port <NUM> may be connected through the second connecting member to where the beam members <NUM> are exposed at the support platform <NUM>, so as to better meet the requirements of adjusting position between the installation port <NUM> and the corresponding beam member <NUM>, and further meet the installation and connection requirements of the electrical equipment <NUM>.

Referring to <FIG>, in some optional embodiments, the support device <NUM> according to the above embodiments further includes a height adjusting member <NUM> which is arranged on one side of the support frame <NUM> away from the support platform <NUM> and connected to at least part of the beam members <NUM> to adjust the height of the support platform <NUM>. Through the above arrangement, the versatility of the support device <NUM> can be further improved, so the support device can meet support requirements of the electrical equipment <NUM> at different heights.

Optionally, the height adjusting member <NUM> is telescopic in the height direction Y. Optionally, the height adjusting member <NUM> is a telescopic cylinder. In some optional embodiments, the height adjusting member <NUM> includes an adjustment screw rod <NUM> and a connecting block <NUM>. The connecting block <NUM> may be connected to the beam member <NUM> arranged along the height direction Y. The connecting block <NUM> is supported on the adjustment screw rod <NUM> through a position-limiting nut <NUM>. By adjusting the position of the position-limiting nut <NUM> on the adjustment screw rod <NUM>, the position adjustment requirement of the connecting block <NUM> on the adjustment screw rod <NUM> can be met to adjust the overall height of the support device <NUM>.

As an optional embodiment, the support device <NUM> further includes a flip cover plate <NUM>, and the flip cover plate <NUM> is movably connected in at least one notch <NUM>. By providing the openable flip cover plate <NUM>, it is convenient for the operator to pass.

In some optional embodiments, the support device <NUM> according to the above embodiments further includes a bridge frame <NUM>, which is movably connected to at least one beam member <NUM>. The bridge frame <NUM> is configured to place the wiring of the electrical equipment <NUM> to ensure the safety of the wiring. Moreover, the bridge frame <NUM> is movably connected to at least one beam member <NUM>, so that the position of the beam member <NUM> on the support frame <NUM> can be adjusted according to the wiring requirements, and the versatility of the support device <NUM> can further be improved.

The optional bridge frame <NUM> may cooperate with the first sliding groove <NUM> of the corresponding beam member <NUM> through the first connecting member <NUM> or the second connecting member <NUM>, so as to better realize the movable connection with the beam member <NUM> and ensure wiring requirements and/or avoidance requirements for other components.

In some optional embodiments, the support device <NUM> according to the above embodiments further includes a reinforcing support member <NUM>, which is connected between the support frame <NUM> and the support platform <NUM>. By providing the reinforcing support member <NUM>, the connection strength between the support frame <NUM> and the support platform <NUM> can be further improved.

Optionally, the reinforcing support member <NUM> may be an oblique support, and the reinforcing support member <NUM> may be hinged to the support frame <NUM> and the support platform <NUM> respectively, which can ensure the requirement for strengthening the connection strength and facilitate the installation of the reinforcing support member <NUM>.

Therefore, according to the support device <NUM> provided by the embodiments of the present application, the support device includes the support frame <NUM> and the support platform <NUM>, the support platform <NUM> is configured to support and place the electrical equipment <NUM>, and the support frame <NUM> is configured to support the support platform <NUM> and the electrical equipment <NUM> thereon at a predetermined height. Besides, since the support frame <NUM> has a hollow frame structure and includes multiple beam members <NUM> and the relative position between at least one group of two beam members <NUM> connected to each other is adjustable, the dimension and/or load-bearing capacity of the support frame <NUM> is adjustable, that is, the dimension and/or load-bearing capacity of the support frame <NUM> can be adjusted by adjusting the relative position between the beam members <NUM> connected to each other according to the project requirements, thereby improving the overall versatility of the support device <NUM>. Therefore, the support device <NUM> can be widely used in the towers <NUM> of different types of wind turbines and support the electrical equipment <NUM>.

Since the wind turbine includes the support device <NUM> provided by the above embodiments, which can support the electrical equipment <NUM> to a predetermined height, the wind turbine provided by the embodiments of the present application can adapt to requirements of number increase, position change or height change from the ground of the electrical equipment <NUM> through the support device <NUM>, which can ensure the safety performance of the electrical equipment <NUM> and allow the wind turbine to have higher power generation efficiency.

Claim 1:
A wind turbine having electrical equipment (<NUM>), wherein the wind turbine comprises a tower (<NUM>) including a tower body (2a), an accommodation space (2b) defined by the tower body (2a), and a support device (<NUM>) for the wind turbine arranged in the accommodation space (2b); wherein the support device (<NUM>) comprises:
a support frame (<NUM>), and
a support platform (<NUM>),
wherein the support frame (<NUM>) is of a hollow frame structure and comprises a plurality of beam members (<NUM>), adjacent beam members (<NUM>) are connected to each other, and a relative position of at least one group of two beam members (<NUM>) connected to each other is adjustable;
the support platform (<NUM>) is arranged on a surface of the support frame (<NUM>) in a height direction (Y) of the support frame (<NUM>) and connected with the plurality of beam members (<NUM>), and the support platform (<NUM>) is configured to support the electrical equipment (<NUM>);
the support platform (<NUM>) comprises a body portion (<NUM>) and a surrounding plate (<NUM>) arranged around the body portion (<NUM>), the surrounding plate (<NUM>) is movably connected with the body portion (<NUM>), and a dimension of an outer edge of the support platform (<NUM>) is adjustable;
the body portion (<NUM>) comprises a support plate (<NUM>) and an enclosing part (<NUM>) wrapping an outer periphery of the support plate (<NUM>); and
the enclosing part (<NUM>) has a horizontal extension portion (212a) and a vertical installation portion (212b) stacked above the horizontal extension portion (212a) in the height direction (Y), the vertical installation portion (212b) defines an adjustment groove (212c), the surrounding plate (<NUM>) is inserted into the adjustment groove (212c) and is in clearance fit with the adjustment groove (212c), and in the height direction (Y), at least part of the surrounding plate (<NUM>) overlaps with and is detachably connected with the body portion (<NUM>).