Elastic parts and photovoltaic systems

Abstract

The present invention provides an elastic member and a photovoltaic system. The elastic member is suitable for being arranged on a profile. The elastic member comprises: a first plate body, which extends along a first direction; a second plate body, which extends from an upper edge of the first plate body along a second direction perpendicular to the first direction; and a third plate body, which extends from a lower edge of the first plate body along the second direction. When the elastic member and the bearing portion of the profile are matched, the second plate body protrudes beyond the top plate of the bearing portion in the second direction, and the third plate body does not protrude beyond the top plate of the bearing portion in the second direction.

Description

Technical Field

[0001] The present invention mainly relates to the field of photovoltaics, and in particular to an elastic member and a photovoltaic system. Background Art

[0002] The traditional photovoltaic module frame has a deep U-shaped notch. Before framing, the U-shaped glue storage tank is filled with fluid sealant. During the framing process, the photovoltaic laminate is embedded in the U-shaped notch. After the framing is completed, the photovoltaic laminate is a certain distance away from each side of the U-shaped notch. After the sealant is cured, it can provide bonding, buffering and sealing for the photovoltaic laminate. However, since the upper surface of the frame is higher than the upper surface of the laminate, the dust accumulated on the upper surface of the traditional photovoltaic module during service is difficult to be washed off by rain or washing water, but accumulates near the frame, gradually blocking the solar cells, causing a decrease in power generation and even triggering a hot spot effect. In order to solve this problem, the prior art often uses an anti-dust component frame profile without an A surface, and there is a C-shaped glue storage groove with a small depth in its cross section. Before framing, the C-shaped glue storage groove is filled with fluid sealant. Under the action of the framing force, most of the sealant flows to the bottom of the laminate, but some of the sealant will also flow out from the gap between the frame and the laminate, which will cause two problems. First, it will cause pollution to the production equipment, and the subsequent process arrangement for cleaning the residual glue will need to be increased. Second, it will cause the amount of sealant under the laminate to decrease, and the position of the laminate relative to the frame will move downward, reducing the anti-dust performance. In addition, under the action of the framing force, the upper surface of the profile gradually contacts the laminate and even generates an interaction force, causing the glass to easily burst during framing. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an elastic member and a photovoltaic system which can prevent the laminate from being stressed and reduce the glue overflow on the surface.

[0004] In order to solve the above technical problems, the present invention provides an elastic member suitable for being arranged on a profile, the elastic member comprising: a first plate body, the first plate body extending along a first direction; a second plate body, the second plate body extending from an upper edge of the first plate body along a second direction perpendicular to the first direction; a third plate body, the third plate body extending from a lower edge of the first plate body along the second direction; wherein, when the elastic member and the bearing portion of the profile are matched, the second plate body protrudes beyond the top plate of the bearing portion in the second direction, and the third plate body does not protrude beyond the top plate of the bearing portion in the second direction.

[0005] In one embodiment of the present invention, the lower surface of the second plate body extends straightly along the second direction, and the upper surface of the second plate body extends toward a direction close to the lower surface of the second plate body.

[0006] In one embodiment of the present invention, the lower surface of the third plate body extends straightly along the second direction, and the upper surface of the third plate body extends toward a direction close to the lower surface of the third plate body.

[0007] In one embodiment of the present invention, the second plate has a first length in the second direction, and the first length is greater than a threshold length, wherein the threshold length is the distance in the second direction between the top plate of the supporting portion and the inner side surface of the supporting portion close to the top plate.

[0008] In one embodiment of the present invention, the third plate has a second length in the second direction, and the second length is less than a threshold length, wherein the threshold length is the distance in the second direction between the top plate of the supporting portion and the inner side surface of the supporting portion close to the top plate.

[0009] In one embodiment of the present invention, the first plate has a convex strip extending along a third direction on a surface away from the second plate and the third plate, and the third direction is perpendicular to the plane where the first direction and the second direction are located.

[0010] In one embodiment of the present invention, the elastic member and the bearing portion of the profile are conformally matched.

[0011] The present invention also provides a photovoltaic system, comprising a plurality of photovoltaic components and a bracket suitable for carrying the plurality of photovoltaic components, the photovoltaic components comprising: a profile, the profile comprising a supporting portion and a bearing portion located on the supporting portion, the bearing portion having a side panel extending along a first direction and a top panel extending along a second direction perpendicular to the first direction; an elastic member as in any of the previous embodiments, the elastic member being located in the bearing portion; and a laminate, wherein a portion of the laminate is installed in the bearing portion; wherein a top surface of the laminate away from the supporting portion is not lower than an upper surface of the bearing portion in the first direction; and a first distance is provided between the laminate and the top panel in the second direction.

[0012] In one embodiment of the present invention, when the first plate body has a convex strip extending along a third direction on its surface away from the second plate body and the third plate body, the surface of the side plate close to the top plate has a groove extending along the third direction, and the third direction is perpendicular to the plane where the first direction and the second direction are located.

[0013] In an embodiment of the present invention, the profile further includes convex patterns on the upper surface of the support portion.

[0014] Compared with the prior art, in the elastic member and photovoltaic system provided by the present invention, the elastic member is arranged between the laminate and the profile, and the length of the second plate body of the elastic member in the second direction is greater than the length of the top plate of the load-bearing part (i.e., the A surface of the profile), forming a step shape with the profile, which plays a role in buffering and preventing glue overflow during installation, and can prevent the profile from directly contacting the laminate, causing the laminate to be broken under force and more beautiful. At the same time, the length of the third plate body in the second direction is less than the length of the top plate of the load-bearing part (i.e., the A surface of the profile), reserving a channel for the sealant to flow downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the present application. They are included and constitute a part of the present application. The accompanying drawings illustrate embodiments of the present application and together with the present specification serve to explain the principles of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a front view of an elastic member according to an embodiment of the present invention.

[0017] Figure 2-5 It is a schematic diagram of the installation process of a photovoltaic system of the present invention.

[0018] Figure 6-8 The present invention is applicable to several Figure 1 A front view of the profile of the elastic member shown. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0020] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0022] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0023] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0024] In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and cannot be understood as limiting the scope of protection of this application. In addition, although the terms used in this application are selected from well-known and commonly used terms, some terms mentioned in the specification of this application may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article. In addition, it is required to understand this application not only by the actual terms used, but also by the meaning implied by each term.

[0025] It should be understood that when a component is referred to as being "on another component," "connected to another component," "coupled to another component," or "contacting another component," it may be directly on, connected to, coupled to, or contacting the other component, or there may be intervening components. In contrast, when a component is referred to as being "directly on another component," "directly connected to," "directly coupled to," or "directly contacting" another component, there are no intervening components. Similarly, when a first component is referred to as being "electrically in contact with" or "electrically coupled to" a second component, there is an electrical path between the first component and the second component that allows current to flow. The electrical path may include capacitors, coupled inductors, and / or other components that allow current to flow, even without direct contact between conductive components.

[0026] Figure 1 1 is a front view of an elastic member according to an embodiment of the present invention. Figure 1 As shown, the present invention provides an elastic member 10, which is suitable for being arranged on a profile. The elastic member 10 includes a first plate body 11, a second plate body 12 and a third plate body 13. The first plate body 11 is arranged along the Figure 1 The second plate 12 extends from the upper edge of the first plate 11 along the second direction BB' perpendicular to the first direction AA', and the third plate 13 extends from the lower edge of the first plate 11 along the second direction BB'. The elastic member 10 provided by the present invention is generally "C"-shaped, and its opening direction is the same as the direction of the bearing portion (not shown) of the profile.

[0027] like Figure 2-3 The process of combining the elastic member 10 and the profile 20 is shown, referring to Figure 1-3 As shown, when the elastic member 10 and the bearing portion 21 of the profile 20 are matched, the first plate 11 fits the side plate 21a of the bearing portion 21, the second plate 12 protrudes from the top plate 21b of the bearing portion 21 in the second direction BB', the third plate fits the top surface of the support portion 22 of the profile 20, and the third plate 13 does not protrude from the top plate 21b of the bearing portion 21 in the second direction BB'. Figure 1 In the preferred embodiment shown, the elastic member 10 and the bearing portion 21 of the profile 20 are conformally matched.

[0028] It is understandable that when the laminate and the profile 20 equipped with the elastic member 10 are installed, the laminate will first contact the second plate 12 of the elastic member 10 along the first direction AA', and will not directly contact the top plate 21b of the bearing portion 21, thereby reducing the risk of rupture due to excessive force. In addition, this arrangement forms a step portion between the second plate 12 and the top plate 21b of the bearing portion 21, and the sealant 30 (such as Figure 4-5At the same time, after the installation is completed, since the third plate body 13 does not protrude from the top plate 21b of the bearing part 21 in the second direction BB', the laminate will not contact the third plate body, and a channel for the sealant 30 to flow downward is reserved.

[0029] Specifically, in Figure 1 In the preferred embodiment shown, in order to conform to the bearing portion 21 of the profile 20, the lower surface of the second plate 12 in the elastic member 10 extends straight along the second direction BB', and the upper surface of the second plate 12 extends in the direction close to the lower surface of the second plate 12, that is, extends obliquely downward, which can prevent the sealant 30 from flowing between the elastic member 10 and the profile 20 during installation, and at the same time play a limiting role between the elastic member 10 and the profile 20 in the second direction BB'. During installation, since the elastic member is compressible, it can be directly pressed into the bearing portion 21. At this time, since the upper surface of the second plate 12 of the elastic member 10 has a downwardly inclined arc, it is difficult to directly separate from the profile 20.

[0030] Furthermore, in this embodiment, the first plate 11 is away from the surface of the second plate 12 and the third plate 13 (such as Figure 1 The left side surface shown in the figure has a convex strip 14 extending along the third direction CC', and the third direction CC' is perpendicular to the plane where the first direction AA' and the second direction BB' are located. And the surface of the side plate 21a of the bearing portion 21 of the profile 20 close to the top plate 21b has a groove 21c extending along the third direction CC', which is suitable for engaging with the convex strip 14 to further play a fixing role. Preferably, in this embodiment, the convex strip 14 can also be directly installed in the groove 21c by pressing along the second direction BB', and the end of the convex strip 14 away from the first plate body 11 in the cross section of the convex strip 14 is wider, and the part connected to the first plate body 11 is narrower. This shape makes it difficult for the convex strip 14 and the groove 21c to separate. In some other embodiments of the present invention, the elastic member 10 and the profile 20 can also be fixed by bonding to replace the cooperation between the convex strip 14 and the groove 21c.

[0031] In such Figure 1 In the illustrated embodiment, the lower surface of the third plate body 13 extends straight along the second direction BB' so as to cooperate with the top surface of the support portion 22 of the profile 20, and the upper surface of the third plate body 13 extends in a direction close to the lower surface of the third plate body 13, that is, extends obliquely downward. The formed slope has a certain guiding effect on the sealant 30, allowing it to flow downward more smoothly, thereby avoiding glue overflow on the surface of the laminate.

[0032] Furthermore, in this embodiment, the top plate 21b of the bearing portion 21 and the inner side surface of the bearing portion 21 close to the top plate 21b (ie, the side plate 21a such as Figure 2 The right side surfaces) have a threshold distance L0 in the second direction BB', the second plate body 12 has a first length L1 in the second direction BB', the third plate body 13 has a second length L2 in the second direction BB', and L1>L0>L2.

[0033] Figure 2-5 This is a schematic diagram of the installation process of a photovoltaic system of the present invention. Figure 1-5 As shown, the present invention further provides a photovoltaic system 100, comprising a plurality of photovoltaic modules 40 and a bracket 50 suitable for carrying the plurality of photovoltaic modules 40, wherein the photovoltaic modules 40 include a profile 20, an elastic member 10 and a laminate 41. Specifically, the profile 20 includes a support portion 22 and a bearing portion 21 located on the support portion 22, the bearing portion 21 has a side plate 21a extending along a first direction AA' and a top plate 21b extending along a second direction BB', the elastic member 10 is located in the bearing portion 21, and the laminate 41 is partially installed in the bearing portion 21.

[0034] In this embodiment, the laminate 41 is away from the top surface of the support portion 22 (ie, Figure 4-5 The upper surface shown in the figure) is not lower than the upper surface of the bearing portion 21 (i.e., the upper surface of the top plate 21b) in the first direction AA', which plays a role in preventing dust from accumulating on the surface of the photovoltaic module 40, and there is a first distance W1 (reference distance W2) between the laminate 41 and the top plate 21b in the second direction BB'. Figure 3-4 As shown). It is understandable that, referring to Figure 4 As shown, when the laminate 41 is placed on the support portion 22 along the first direction AA', the elastic member 10 is in an unstressed state, so that the laminate 41 does not directly contact the top plate 21b, but first abuts against the second plate body 12 of the elastic member 10, that is, Figure 3-4 The right end shown in the figure, and the sealant 30 is still fluid at this time, then the laminate 41 is translated along the second direction BB' to make it close to the side plate 21a, the second plate 12 of the elastic member 10 is compressed, and the distance between the edge of the second plate 12 away from the first plate 11 and the edge of the top plate 21b away from the side plate 21a in the second direction BB' (the difference between L1 and L0 in the initial state) gradually decreases until it is close to 0. Note that it is still necessary to ensure that the laminate 41 does not directly contact the profile 20. After a period of time, the sealant 30 is cured and the installation is completed.

[0035] Figure 6-8 The present invention is applicable to several Figure 1 A front view of the profile of the elastic member shown. Figure 6 As shown, in some other embodiments of the present invention, the profile 20 further includes a convex pattern 22a located on the upper surface of the support portion 22. Figure 7-8As shown, in some other embodiments of the present invention, the side surface of the profile 20 may also have a side groove 23 .

[0036] The basic concepts have been described above. Obviously, for those skilled in the art, the above invention disclosure is only used as an example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0037] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0038] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0039] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of the present application are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0040] Although the present application has been described with reference to the current specific embodiments, ordinary technicians in this technical field should recognize that the above embodiments are only used to illustrate the present application, and various equivalent changes or substitutions may be made without departing from the spirit of the present application. Therefore, as long as the changes and modifications to the above embodiments are within the essential spirit of the present application, they will fall within the scope of the claims of the present application.

Claims

1. An elastic member, suitable for being arranged on a profile, wherein the profile has a laminate, characterized in that: The elastic member comprises: A first plate body, the first plate body extending along a first direction; a second plate body, the second plate body extending from an upper edge of the first plate body along a second direction perpendicular to the first direction; A third plate body, the third plate body extends from the lower edge of the first plate body along the second direction; wherein, The first plate body and the third plate body do not contact the laminate, and a sealant flow channel is provided between the elastic member and the laminate. When the elastic member and the bearing portion of the profile cooperate, the second plate body protrudes beyond the top plate of the bearing portion in the second direction, and the third plate body does not protrude beyond the top plate of the bearing portion in the second direction.

2. The elastic member according to claim 1, characterized in that: The lower surface of the second plate body extends straightly along the second direction, and the upper surface of the second plate body extends toward a direction close to the lower surface of the second plate body.

3. The elastic member according to claim 1, characterized in that: The lower surface of the third plate body extends straightly along the second direction, and the upper surface of the third plate body extends toward a direction close to the lower surface of the third plate body.

4. The elastic member according to claim 1, characterized in that: The second plate body has a first length in the second direction, and the first length is greater than a threshold length, wherein the threshold length is a distance in the second direction between the top plate of the bearing portion and an inner side surface of the bearing portion close to the top plate.

5. The elastic member according to claim 1, characterized in that: The third plate body has a second length in the second direction, and the second length is less than a threshold length, wherein the threshold length is a distance in the second direction between the top plate of the bearing portion and an inner side surface of the bearing portion close to the top plate.

6. The elastic member according to claim 1, characterized in that: A convex strip extending along a third direction is provided on a surface of the first plate body away from the second plate body and the third plate body, and the third direction is perpendicular to a plane where the first direction and the second direction are located.

7. The elastic member according to claim 1, characterized in that: The elastic member and the bearing portion of the profile are conformally matched.

8. A photovoltaic system, characterized in that: The invention comprises a plurality of photovoltaic components and a bracket suitable for carrying the plurality of photovoltaic components, wherein the photovoltaic components include: A profile, the profile comprising a support portion and a bearing portion located on the support portion, the bearing portion having a side plate extending along a first direction and a top plate extending along a second direction perpendicular to the first direction; The elastic member according to any one of claims 1 to 7, wherein the elastic member is located in the bearing portion; and a laminate, wherein the laminate is partially mounted in the carrier; wherein The top surface of the laminate away from the support portion is not lower than the upper surface of the bearing portion in the first direction; The laminate and the top plate have a first distance therebetween in the second direction.

9. The photovoltaic system according to claim 8, characterized in that: When the photovoltaic assembly includes the elastic member as claimed in claim 6, the surface of the side plate close to the top plate has a groove extending along a third direction, and the third direction is perpendicular to the plane where the first direction and the second direction are located.

10. The photovoltaic system according to claim 8, characterized in that: The profile further includes convex patterns on the upper surface of the support portion.

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