Foldable photovoltaic panel supporting device

Abstract

The utility model relates to a foldable photovoltaic panel supporting device which comprises a supporting mechanism. The supporting mechanism comprises a first supporting shell and a second supporting shell which are connected with each other, the first supporting shell is used for installing a first photovoltaic panel, the second supporting shell is used for installing a second photovoltaic panel, and the supporting mechanism is configured in the mode that the second supporting shell can turn over relative to the first supporting shell so as to be switched between an unfolded state and a folded state; in the unfolded state, the first supporting shell and the second supporting shell are coplanar so that the second photovoltaic panel and the first photovoltaic panel can be coplanar, and in the folded state, the first supporting shell, the first photovoltaic panel, the second photovoltaic panel and the second supporting shell are sequentially stacked. The overturning arrangement can reduce abrasion and contact between the first photovoltaic panel and the second photovoltaic panel, the first supporting shell shields and protects the first photovoltaic panel in the folded state, the second supporting shell shields and protects the second photovoltaic panel in the folded state, folding and unfolding operation is simple, the whole device is of an open structure, and wiring installation and maintenance are convenient.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic power generation, and in particular to a foldable photovoltaic panel support device. Background Art

[0002] With the development of photovoltaic power generation technology, photovoltaic power generation accounts for an increasingly larger proportion in the entire energy application field. Among them, photovoltaic panels, as the main components that directly receive solar light, are equipped with specific support mechanisms for placement, installation and fixation. In order to facilitate the subsequent movement and transportation of fixed photovoltaic panels, a slidable support mechanism is usually set up, and components such as hinged rods and hinges are set up to achieve sliding between the mounting components of multiple photovoltaic panels, so that the photovoltaic panels can be slid and folded together, and can be slid and unfolded when needed. However, the durability of the sliding support mechanism is not high, and frequent sliding can easily wear out the mounting components. In addition, the working surface of the photovoltaic panel on the top of the panel frame is not shielded and protected, and it is easy to bump after folding. Summary of the invention

[0003] Based on this, it is necessary to provide a foldable photovoltaic panel support device to address the problem that the folding mechanism of the photovoltaic panel support mechanism is easily damaged and difficult to protect and shield the photovoltaic panel.

[0004] The present application proposes a foldable photovoltaic panel support device, which includes a support mechanism, wherein the support mechanism includes a first support shell and a second support shell connected to each other, the first support shell having a first installation cavity for installing a first photovoltaic panel, the second support shell having a second installation cavity for installing a second photovoltaic panel, and the support mechanism is configured so that the second support shell can be flipped relative to the first support shell to switch between an unfolded state and a folded state, in the unfolded state, the first support shell is coplanar with the second support shell so that the second photovoltaic panel is coplanar with the first photovoltaic panel, and in the folded state, the first support shell, the first photovoltaic panel, the second photovoltaic panel and the second support shell are stacked in sequence.

[0005] In one embodiment, the foldable photovoltaic panel support device also includes a protection mechanism, which is located on one side of the support mechanism in the unfolded state, and includes a first protection support and a second protection support that are connected to each other, the first protection support is arranged on a side of the first support shell that is away from the first installation cavity and is connected to the first support shell, and the protection mechanism is configured so that the second protection support can be flipped relative to the first protection support, so that the second protection support can be flipped and abut against the side of the second support shell that is away from the second installation cavity in both the unfolded state and the folded state.

[0006] In one embodiment, the support mechanism further includes a support shaft, and the first support shell is connected to the second support shell via the support shaft. The protection mechanism further includes a protection shaft, and the first protection support is connected to the second protection support via the protection shaft.

[0007] In one embodiment, the protection mechanism also includes a first telescopic mechanism and a second telescopic mechanism, the two sides of the first telescopic mechanism are respectively connected to the first protection support and the second telescopic mechanism, the second telescopic mechanism is connected to the protection shaft, the direction in which the first support shell and the second support shell are coplanar in the unfolded state is the first direction, the second direction is perpendicular to the direction in which the first support shell and the second support shell are coplanar, the telescopic direction of the first telescopic mechanism is parallel to the first direction, and the telescopic direction of the second telescopic mechanism is parallel to the second direction; in the unfolded state, the first telescopic mechanism and the second telescopic mechanism are in a retracted state, and in the folded state, the first telescopic mechanism and the second telescopic mechanism are in an extended state.

[0008] In one embodiment, the first telescopic mechanism includes a first connecting block and a first telescopic rod, the telescopic direction of the first telescopic rod is parallel to the first direction, the two sides of the first connecting block are respectively connected to the first protective support and the first telescopic rod, and the end of the first telescopic rod away from the first protective support is connected to the second telescopic mechanism.

[0009] In one embodiment, a first receiving groove is formed on a side of the first connecting block facing away from the first protective support, the first telescopic rod is disposed in the first receiving groove, and the first receiving groove is configured to be received in the first receiving groove when the first telescopic rod is in a retracted state.

[0010] In one embodiment, the second telescopic mechanism includes a second connecting block, a second telescopic rod and a third connecting block, the telescopic direction of the second telescopic rod is parallel to the second direction, the end of the first telescopic rod away from the first protective support is connected to the second connecting block, the two ends of the second telescopic rod are respectively connected to the second connecting block and the third connecting block, and the protective shaft is arranged on the third connecting block.

[0011] In one of the embodiments, a second accommodating groove is provided on a side of the second connecting block opposite to the third connecting block, the second telescopic rod is provided in the second accommodating groove, and the second accommodating groove is configured to be accommodated in the second accommodating groove when the second telescopic rod is in a retracted state.

[0012] In one embodiment, the protection shaft is arranged on a side of the third connection block away from the first protection support and on a side of the third connection block away from the second connection block.

[0013] In one embodiment, the first support shell includes a first support base plate and a first support side wall, the first support side wall is vertically connected to the first support base plate and encloses the first installation cavity; the second support shell includes a second support base plate and a second support side wall, the second support side wall is vertically connected to the second support base plate and encloses the second installation cavity.

[0014] In the technical solution of the present application, the support mechanism includes a first support shell and a second support shell that are connected to each other. The first installation cavity of the first support shell is used to install the first photovoltaic panel, and the second installation cavity of the second support shell is used to install the second photovoltaic panel. When the second support shell is flipped relative to the first support shell, it can drive the second photovoltaic panel to flip relative to the first photovoltaic panel, and the flipping setting can effectively reduce the wear and contact between the first support shell and the second support shell. In the unfolded state, the second photovoltaic panel is coplanar with the first photovoltaic panel, and the two photovoltaic panels are unfolded for easy work. In the folded state, the first photovoltaic panel and the second photovoltaic panel are stacked together. The first support shell is located below the first photovoltaic panel to shield and protect the first photovoltaic panel, and the second support shell is located above the second photovoltaic panel to shield and protect the second photovoltaic panel. In the folded state, the photovoltaic panel is not easily damaged, and the folding and unfolding operations are simple. The device as a whole is an open structure, which is convenient for wiring installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG1 is a schematic structural diagram of an embodiment of a foldable photovoltaic panel support device of the present application in an unfolded state.

[0016] FIG. 2 is a schematic structural diagram of an embodiment of a foldable photovoltaic panel support device of the present application in a folded state.

[0017] FIG3 is a schematic cross-sectional view of an embodiment of a foldable photovoltaic panel support device of the present application.

[0018] FIG4 is a schematic structural diagram of a first telescopic mechanism and a second telescopic mechanism of an embodiment of a foldable photovoltaic panel support device of the present application.

[0019] Description of component numbers in the attached figure:

[0020] 1000. A foldable photovoltaic panel support device; 100. A support mechanism; 110. A first support shell; 111. A first mounting cavity; 112. A first support base plate; 113. A first support side wall; 120. A second support shell; 121. A second mounting cavity; 122. A second support base plate; 123. A second support side wall; 130. A support shaft; 200. A protection mechanism; 210. A first protection support; 220. A second protection support; 230. A first telescopic mechanism; 231. A first connecting block; 232. A first telescopic rod; 233. A first accommodating groove; 240. A second telescopic mechanism; 241. A second connecting block; 242. A second telescopic rod; 243. A third connecting block; 244. A second accommodating groove; 250. A protection shaft; 310. A first photovoltaic panel; 320. A second photovoltaic panel. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0022] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0023] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0025] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0027] Referring to FIG. 1 and FIG. 2 , FIG. 1 and FIG. 2 respectively show the structural schematic diagrams of a foldable photovoltaic panel support device 1000 in an unfolded state and a folded state. The present application proposes a foldable photovoltaic panel support device 1000, and the foldable photovoltaic panel support device 1000 includes a support mechanism 100. The support mechanism 100 includes a first support shell 110 and a second support shell 120 connected to each other, the first support shell 110 has a first installation cavity 111 for installing a first photovoltaic panel 310, and the second support shell 120 has a second installation cavity 121 for installing a second photovoltaic panel 320. The support mechanism 100 is configured so that the second support shell 120 can be flipped relative to the first support shell 110 to switch between an unfolded state and a folded state. In the unfolded state, the first support shell 110 and the second support shell 120 are coplanar, so that the second photovoltaic panel 320 is coplanar with the first photovoltaic panel 310. In the folded state, the first support shell 110, the first photovoltaic panel 310, the second photovoltaic panel 320 and the second support shell 120 are stacked in sequence.

[0028] The support mechanism 100 includes a first support shell 110 and a second support shell 120 connected to each other. The first installation cavity 111 of the first support shell 110 is used to install the first photovoltaic panel 310, and the second installation cavity 121 of the second support shell 120 is used to install the second photovoltaic panel 320. When the second support shell 120 is flipped relative to the first support shell 110, it can drive the second photovoltaic panel 320 to flip relative to the first photovoltaic panel 310, and the flipping setting can effectively reduce the wear and contact between the first support shell 110 and the second support shell 120. In the unfolded state, the second photovoltaic panel 320 is coplanar with the first photovoltaic panel 310, and the two photovoltaic panels are unfolded for easy work. In the folded state, the first photovoltaic panel 310 and the second photovoltaic panel 320 are stacked together. The first support shell 110 is located below the first photovoltaic panel 310 to shield and protect the first photovoltaic panel 310, and the second support shell 120 is located above the second photovoltaic panel 320 to shield and protect the second photovoltaic panel 320. In the folded state, the photovoltaic panel is not easily damaged, and the folding and unfolding operations are simple. The device as a whole is an open structure, which is convenient for wiring installation and maintenance.

[0029] Further, referring to FIG. 1 and FIG. 2, the support mechanism 100 and the photovoltaic panel are usually installed together in a state of being fitted together. The dents caused by bumping the support mechanism 100 during transportation may damage the photovoltaic panel installed inside the support mechanism 100. In view of this, the foldable photovoltaic panel support device 1000 also includes a protection mechanism 200. The protection mechanism 200 is located on one side of the support mechanism 100 in the unfolded state. The protection mechanism 200 includes a first protection support 210 and a second protection support 220 connected to each other. The first protection support 210 is arranged on the first protection support 220. A support shell 110 is connected to a side of the first mounting cavity 111, so that the first protective support 210 protects the first support shell 110. The protection mechanism 200 is configured so that the second protective support 220 can be flipped relative to the first protective support 210, so that the second protective support 220 can be flipped and abutted against the side of the second support shell 120 facing away from the second mounting cavity 121 in both the unfolded state and the folded state, so that the second protective support 220 protects the second support shell 120.

[0030] Specifically, the connection between the first support shell 110 and the second support shell 120 is a rotational connection, and the connection between the first protection support 210 and the second protection support 220 is a rotational connection. Exemplarily, the support mechanism 100 further includes a support shaft 130, through which the first support shell 110 is connected to the second support shell 120, and the protection mechanism 200 further includes a protection shaft 250, through which the first protection support 210 is connected to the second protection support 220, and the rotational connection formed by the support shaft 130 and the protection shaft 250 is safe, reliable and durable. After the second support shell 120 is flipped to be opposite to the first support shell 110, the first installation cavity 111 and the second installation cavity 121 are opposite to each other and form a closed space to accommodate the first photovoltaic panel 310 and the second photovoltaic panel 320 in the closed space, and then the second protection support 220 is flipped to the top of the second support shell 120 to protect the second support shell 120.

[0031] Optionally, the joint between the first support shell 110 and the second support shell 120 has an arc chamfer structure, and the arc chamfer structure is arranged on the side close to the protection mechanism 200. Such a setting can provide installation space for the protection shaft 250 to prevent the protection shaft 250 from rubbing against the upper support mechanism 100 when rotating.

[0032] Referring to Fig. 3 and Fig. 4, Fig. 3 and Fig. 4 respectively show a cross-sectional structural schematic diagram of the foldable photovoltaic panel support device 1000 and a structural schematic diagram of the first telescopic mechanism 230 and the second telescopic mechanism 240. The protection mechanism 200 further includes a first telescopic mechanism 230 and a second telescopic mechanism 240, the two sides of the first telescopic mechanism 230 are respectively connected to the first protection support 210 and the second telescopic mechanism 240, the second telescopic mechanism 240 is connected to the protection shaft 250, the direction in which the first support shell 110 and the second support shell 120 are coplanar in the unfolded state is the first direction, the second direction is perpendicular to the direction in which the first support shell 110 and the second support shell 120 are coplanar, the telescopic direction of the first telescopic mechanism 230 is parallel to the first direction, and the telescopic direction of the second telescopic mechanism 240 is parallel to the second direction. In the unfolded state, the first telescopic mechanism 230 and the second telescopic mechanism 240 are in a retracted state, and in the folded state, the first telescopic mechanism 230 and the second telescopic mechanism 240 are in an extended state. With this arrangement, before the second protective support 220 is flipped over to the top of the first support shell 110, the second protective support 220 must first be pushed away from the first protective support 210 along the first direction by the first telescopic mechanism 230, and the second protective support 220 must be lifted along the second direction by the second telescopic mechanism 240, so that the second protective support 220 can overcome the obstruction of the support mechanism 100 and smoothly flip over to the top of the second support shell 120.

[0033] Specifically, referring to FIGS. 2 to 4 , the first telescopic mechanism 230 includes a first connection block 231 and a first telescopic rod 232. The telescopic direction of the first telescopic rod 232 is parallel to the first direction. The two sides of the first connection block 231 are respectively connected to the first protection support 210 and the first telescopic rod 232. One end of the first telescopic rod 232 away from the first protection support 210 is connected to the second telescopic mechanism 240. The first connection block 231 is provided with a first receiving groove 233 on the side facing away from the first protection support 210. The first telescopic rod 232 is arranged in the first receiving groove 233. The first receiving groove 233 is configured to be accommodated in the first receiving groove 233 when the first telescopic rod 232 is in a retracted state. When the first telescopic rod 232 is in a retracted state, the first telescopic rod 232 can be partially or completely accommodated in the first receiving groove 233, which is not specifically limited here. Optionally, when the first telescopic rod 232 is in a retracted state, the first telescopic rod 232 can be completely accommodated in the first receiving groove 233.

[0034] Specifically, referring to FIGS. 2 to 4 , the second telescopic mechanism 240 includes a second connecting block 241, a second telescopic rod 242, and a third connecting block 243. The telescopic direction of the second telescopic rod 242 is parallel to the second direction. The end of the first telescopic rod 232 away from the first protection support 210 is connected to the second connecting block 241. The two ends of the second telescopic rod 242 are respectively connected to the second connecting block 241 and the third connecting block 243. The protection shaft 250 is arranged on the third connecting block 243. A second receiving groove 244 is arranged on the side of the second connecting block 241 opposite to the third connecting block 243. The second telescopic rod 242 is arranged in the second receiving groove 244. The second receiving groove 244 is configured to be accommodated in the second receiving groove 244 when the second telescopic rod 242 is in a retracted state. When the second telescopic rod 242 is in a retracted state, the second telescopic rod 242 can be partially or completely accommodated in the second receiving groove 244, which is not specifically limited here. Optionally, when the second telescopic rod 242 is in the retracted state, the second telescopic rod 242 can be completely accommodated in the second accommodating groove 244 .

[0035] Before flipping the second protective support 220 to the top of the first supporting shell 110, the first telescopic rod 232 is extended to drive the second connecting block 241, the second telescopic rod 242 and the third connecting block 243 to move in the first direction, and the second telescopic rod 242 is extended to drive the third connecting block 243 and the protective rotating shaft 250 to rise in the second direction, and the first telescopic rod 232 and the second telescopic rod 242 are adjusted to the extended state so that the third connecting block 243 is displaced in the first direction and the second direction, which is equivalent to the third connecting block 243 being displaced by an angle, so that the height of the upper end of the third connecting block 243 is flush with the upper end of the second supporting shell 120, so that the second protective support 220 can be smoothly flipped to the top of the second supporting shell 120.

[0036] Specifically, the protection shaft 250 is disposed on a side of the third connection block 243 away from the first protection support 210 , and on a side of the third connection block 243 away from the second connection block 241 .

[0037] Exemplarily, referring to FIG3 , the first support shell 110 includes a first support bottom plate 112 and a first support side wall 113, wherein the first support side wall 113 is vertically connected to the first support bottom plate 112 and encloses a first installation cavity 111. The second support shell 120 includes a second support bottom plate 122 and a second support side wall 123, wherein the second support side wall 123 is vertically connected to the second support bottom plate 122 and encloses a second installation cavity 121.

[0038] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A foldable photovoltaic panel support device, characterized in that: The foldable photovoltaic panel support device includes a support mechanism, which includes a first support shell and a second support shell connected to each other, the first support shell having a first installation cavity for installing a first photovoltaic panel, and the second support shell having a second installation cavity for installing a second photovoltaic panel, and the support mechanism is configured so that the second support shell can be flipped relative to the first support shell to switch between an unfolded state and a folded state, in the unfolded state, the first support shell is coplanar with the second support shell so that the second photovoltaic panel is coplanar with the first photovoltaic panel, and in the folded state, the first support shell, the first photovoltaic panel, the second photovoltaic panel and the second support shell are stacked in sequence.

2. The foldable photovoltaic panel support device according to claim 1, characterized in that: The foldable photovoltaic panel support device also includes a protection mechanism, which is located on one side of the support mechanism in the unfolded state, and includes a first protection support and a second protection support that are connected to each other, the first protection support is arranged on a side of the first support shell that is away from the first installation cavity and is connected to the first support shell, and the protection mechanism is configured so that the second protection support can be flipped relative to the first protection support, so that the second protection support can be flipped and abut against the side of the second support shell that is away from the second installation cavity in both the unfolded state and the folded state.

3. The foldable photovoltaic panel support device according to claim 2, characterized in that: The support mechanism further includes a support shaft, and the first support shell is connected to the second support shell via the support shaft. The protection mechanism further includes a protection shaft, and the first protection support is connected to the second protection support via the protection shaft.

4. The foldable photovoltaic panel support device according to claim 3, characterized in that: The protection mechanism further includes a first telescopic mechanism and a second telescopic mechanism, the two sides of the first telescopic mechanism are respectively connected to the first protection support and the second telescopic mechanism, the second telescopic mechanism is connected to the protection shaft, the direction in which the first support shell and the second support shell are coplanar in the expanded state is the first direction, the second direction is perpendicular to the direction in which the first support shell and the second support shell are coplanar, the telescopic direction of the first telescopic mechanism is parallel to the first direction, and the telescopic direction of the second telescopic mechanism is parallel to the second direction; In the unfolded state, the first telescopic mechanism and the second telescopic mechanism are in a retracted state, and in the folded state, the first telescopic mechanism and the second telescopic mechanism are in an extended state.

5. The foldable photovoltaic panel support device according to claim 4, characterized in that: The first telescopic mechanism includes a first connecting block and a first telescopic rod, the telescopic direction of the first telescopic rod is parallel to the first direction, the two sides of the first connecting block are respectively connected to the first protective support and the first telescopic rod, and the end of the first telescopic rod away from the first protective support is connected to the second telescopic mechanism.

6. The foldable photovoltaic panel support device according to claim 5, characterized in that: A first receiving groove is formed on a side of the first connecting block facing away from the first protective support. The first telescopic rod is disposed in the first receiving groove. The first receiving groove is configured to be received in the first receiving groove when the first telescopic rod is in a retracted state.

7. The foldable photovoltaic panel support device according to claim 5, characterized in that: The second telescopic mechanism includes a second connecting block, a second telescopic rod and a third connecting block, the telescopic direction of the second telescopic rod is parallel to the second direction, the end of the first telescopic rod away from the first protective support is connected to the second connecting block, the two ends of the second telescopic rod are respectively connected to the second connecting block and the third connecting block, and the protective rotating shaft is arranged on the third connecting block.

8. The foldable photovoltaic panel support device according to claim 7, characterized in that: A second receiving groove is provided on a side of the second connecting block opposite to the third connecting block, the second telescopic rod is provided in the second receiving groove, and the second receiving groove is configured to be accommodated in the second receiving groove when the second telescopic rod is in a retracted state.

9. The foldable photovoltaic panel support device according to claim 7, characterized in that: The protection shaft is arranged on a side of the third connection block away from the first protection support and on a side of the third connection block away from the second connection block.

10. The foldable photovoltaic panel support device according to claim 1, characterized in that: The first supporting shell includes a first supporting base plate and a first supporting side wall, wherein the first supporting side wall is vertically connected to the first supporting base plate and encloses the first mounting cavity; the second supporting shell includes a second supporting base plate and a second supporting side wall, wherein the second supporting side wall is vertically connected to the second supporting base plate and encloses the second mounting cavity.

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