Waterproof fixing assembly and photovoltaic system
By designing a waterproof fixing component including a support part and a load-bearing part, the problem of seepage and leakage of household photovoltaic power generation equipment when setting the roof is solved, better fixity and strength are achieved, and construction difficulty and cost are reduced.
Patent Information
- Application Number
- CN202323667387.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2033-12-29
AI Technical Summary
When household photovoltaic power generation equipment is installed on the roof, rainwater flows in due to the gap reserved between adjacent photovoltaic modules, resulting in water seepage and leakage problems. The drainage tanks of the prior art are inconvenient to set up and are unreliable, with high cost and high construction difficulty.
A waterproof fixing assembly is designed, including a support portion and a load portion, which is connected to the support portion through the first and second load bodies to form a drainage groove, and rainwater flows into the drainage groove through the groove, and passes through a plurality of height gradient steps. The drainage tank is introduced into the drainage tank, avoiding drilling and fixing, and enhancing strength and fixability.
This component saves space in the vertical direction, has better fixity and higher strength, avoids seepage and leakage problems, and reduces construction difficulty and cost.
Smart Images
Figure CN222441627U_ABST
Abstract
Description
Technical Field
[0001] The utility model mainly relates to the photovoltaic field, and in particular to a waterproof fixing component and a photovoltaic system. Background Art
[0002] The photovoltaic laminate including the solar cell is fixed by the profile of the solar photovoltaic module, and the photovoltaic module with the profile needs to be further connected and fixed by the pressing block. With the continuous development of photovoltaic power generation equipment and the improvement of power generation efficiency, in addition to large photovoltaic power stations, the demand for the use of household photovoltaic power generation equipment is gradually increasing. Household photovoltaic power generation equipment is usually set on the top of the house. Considering the demand for thermal expansion and contraction, the adjacent photovoltaic modules are not closely connected but a certain gap is reserved, but this will cause rainwater to flow into the lower part of the photovoltaic module along the gap, causing water seepage and leakage on the roof. The problem of water seepage and leakage can be solved by setting a drainage trough between two adjacent photovoltaic modules. However, in the prior art, the drainage trough is usually set between the bottom of two adjacent photovoltaic modules and the purlin. The extension direction of the drainage trough and the purlin is perpendicular. The module frame is directly overlapped on the drainage trough and needs to be fixed by drilling holes on the drainage trough. The photovoltaic module occupies a large space vertically and the fixation is unreliable, the cost is high, and the construction is difficult. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a waterproof fixing component and a photovoltaic system which saves space and has better fixability and higher strength.
[0004] In order to solve the above technical problems, the utility model provides a waterproof fixing component, which is suitable for carrying photovoltaic components. The waterproof fixing component includes a supporting part and a carrying part located above the supporting part, wherein: the carrying part includes a first carrying body extending from a first position of the supporting part, a second carrying body extending from a second position of the supporting part, and a groove located between the tops of the first carrying body and the second carrying body, and the distance between the tops of the first carrying body and the second carrying body and the upper surface of the supporting part in a first direction perpendicular to the upper surface of the supporting part gradually decreases along a direction close to the groove, and the tops of the first carrying body and the second carrying body are respectively attached to the bottoms of two adjacent photovoltaic components; wherein the upper surfaces of the first carrying body, the second carrying body and the supporting part form a drainage groove in the second direction in which the supporting part extends, and the drainage groove is suitable for discharging liquid that flows into the drainage groove through the groove along the second direction.
[0005] In one embodiment of the present invention, the first supporting body includes a first lateral extension plate extending obliquely from a first position simultaneously along a first direction and a direction gradually away from the second supporting body, and the second supporting body includes a second lateral extension plate extending obliquely from a second position simultaneously along the first direction and a direction gradually away from the first supporting body.
[0006] In one embodiment of the utility model, the first carrier body also includes a first step portion and a second step portion arranged from the first lateral extension plate farther away from the upper edge of the first side plate toward the direction closer to the second carrier body, and the second carrier body also includes a third step portion and a fourth step portion arranged from the second lateral extension plate farther away from the upper edge of the second side plate toward the direction closer to the first carrier body; wherein the distance between the upper surface of the first step portion and the upper surface of the support portion in the first direction is greater than the distance between the upper surface of the second step portion and the upper surface of the support portion in the first direction; the distance between the upper surface of the third step portion and the upper surface of the support portion in the first direction is greater than the distance between the upper surface of the fourth step portion and the upper surface of the support portion in the first direction; and the groove is located between the second step portion and the fourth step portion.
[0007] In one embodiment of the utility model, the waterproof fixing assembly also includes a first limiting step located between the first step portion and the first lateral extension plate farther away from the upper edge of the first side plate, and a second limiting step located between the third step portion and the second lateral extension plate farther away from the upper edge of the second side plate; wherein the distance between the upper surface of the first limiting step portion and the upper surface of the supporting portion in the first direction is greater than the distance between the upper surface of the first step portion and the upper surface of the supporting portion in the first direction; the distance between the upper surface of the second limiting step portion and the upper surface of the supporting portion in the first direction is greater than the distance between the upper surface of the third step portion and the upper surface of the supporting portion in the first direction.
[0008] In one embodiment of the utility model, the waterproof fixing assembly also includes a pressure block, which has a fastening portion and a first crimping portion and a second crimping portion located on both sides of the fastening portion, and the lower edges of the first crimping portion and the second crimping portion along the first direction are respectively suitable for abutting the top surfaces of the second step portion and the fourth step portion.
[0009] In one embodiment of the utility model, the waterproof fixing assembly also includes a fastener and a locking piece. The pressing block also has a fastening hole that penetrates the fastening portion. The fastener cooperates with the locking piece through the fastening hole and the groove. The second step portion and the fourth step portion abut against the locking piece near the edge of the support portion in the first direction.
[0010] In one embodiment of the utility model, the support portion includes a top plate, a bottom plate, and a first side plate and a second side plate located between the top plate and the bottom plate. The first position is the upper edge of the first side plate, and the second position is the upper edge of the second side plate.
[0011] The utility model also provides a photovoltaic system, including: a photovoltaic component, an edge of the photovoltaic component is installed with a profile, the profile has a support portion and a fixing plate extending outward from the bottom surface of the support portion; a waterproof fixing component such as any of the previous embodiments, suitable for carrying the photovoltaic component; and a bracket, suitable for carrying the waterproof fixing component.
[0012] In an embodiment of the present invention, the photovoltaic system further comprises a plurality of welding portions, and the welding portions are located at the edges where the bottom plate of the supporting portion contacts the upper surface of the bracket.
[0013] In one embodiment of the utility model, the edge of the fixing plate of the first profile away from the supporting portion abuts against the side of the first limiting step portion away from the first laterally extending plate, and the edge of the fixing plate of the second profile away from the supporting portion abuts against the side of the second limiting step portion away from the second laterally extending plate; the bottom surface of the first profile at least partially contacts with the upper surface of the first step portion, and the bottom surface of the second profile at least partially contacts with the upper surface of the third step portion.
[0014] In an embodiment of the present invention, the side of the first crimping portion away from the fastening portion fits the support portion of the first profile, and the side of the second crimping portion away from the fastening portion fits the support portion of the second profile adjacent to the first profile.
[0015] Compared with the prior art, in the waterproof fixing assembly and photovoltaic system provided by the utility model, the supporting part of the waterproof fixing assembly is in contact with the bracket, and the bearing part above the supporting part is suitable for bearing the photovoltaic assembly and playing the role of drainage, saving space in the vertical direction. In addition, the upper surface of the bearing part is provided with a plurality of step parts with gradually changing heights and different widths, which can discharge rainwater into the drainage groove and play the role of limiting / clamping components such as the pressing block, profile, and locking piece, without the need for drilling, and has higher strength. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] 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 utility model. In the accompanying drawings:
[0017] Figure 1 It is a cross-sectional view of the waterproof fixing assembly of the first embodiment of the present application.
[0018] Figure 2 It is a cross-sectional view of the photovoltaic system of the first embodiment of the present application.
[0019] Figure 3 It is a cross-sectional view of the waterproof fixing assembly of the second embodiment of the present application.
[0020] Figure 4 It is a cross-sectional view of the waterproof fixing assembly of the third embodiment of the present application. DETAILED DESCRIPTION
[0021] 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.
[0022] 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.
[0023] 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.
[0024] 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.
[0025] 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.
[0026] 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.
[0027] 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 can be directly on, connected to, coupled to, or contacting the other component, or intervening components may be present. 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 present.
[0028] Embodiment 1
[0029] Figure 1 is a cross-sectional view of the waterproof fixing assembly of the first embodiment of the present application, Figure 2 2 is a cross-sectional view of a photovoltaic system according to Embodiment 1 of the present application. Figure 1-2As shown, the present application provides a waterproof fixing assembly 10, which is suitable for carrying a photovoltaic assembly 30 with a profile 20 installed on the edge. The waterproof fixing assembly 10 includes a support portion 100 and a bearing portion 200 located on the support portion 100, wherein the support portion 100 includes a top plate 101, a bottom plate 102, and a first side plate 103 and a second side plate 104 located between the top plate 101 and the bottom plate 102, and the bearing portion 200 includes a first bearing body 210, a second bearing body 220 and a groove 201 located therebetween.
[0030] refer to Figure 1 As shown, the tops of the first and second carrier bodies 210 and 220 are not flat, specifically, the distance between the tops of the first and second carrier bodies 210 and 220 and the top plate 101 in the first direction AA' perpendicular to the top plate 101 decreases in the direction of gradually approaching the groove 201, and the tops of the first and second carrier bodies 210 and 220 are respectively suitable for fitting with the bottoms of the adjacent profiles 20. This arrangement enables rainwater to be introduced from between adjacent photovoltaic modules 30 along the uneven tops of the first and second carrier bodies 210 and 220 into the groove 201 between the two.
[0031] Furthermore, the first bearing body 210, the second bearing body 220 and the top plate 101 in the waterproof fixing assembly 10 provided in the present application form a drainage groove 202 in the second direction BB' extending from the support part 100, and the drainage groove 202 is suitable for discharging rainwater and other liquids that flow into the drainage groove 202 through the groove 201 along the second direction BB'.
[0032] like Figure 1-2 In the preferred embodiment shown, the first bearing body 210 includes a first lateral extension plate 211 extending obliquely from the upper edge of the first side plate 103 along the first direction AA' and the direction gradually away from the second bearing body 220, and the second bearing body 220 includes a second lateral extension plate 221 extending obliquely from the upper edge of the second side plate 104 along the first direction AA' and the direction gradually away from the first bearing body 210. In other words, the first lateral extension plate 211 and the second lateral extension plate 221 extend obliquely upward in a trend of moving away from each other, so that the cross-section of the bearing part 200 is similar to an inverted trapezoid, increasing the bearing area, improving the reliability of the component support, and at the same time maximizing the flow of rainwater to the drainage trough to avoid backflow, thereby enhancing the diversion effect.
[0033] Furthermore, in this embodiment, the first supporting body 210 also includes a first limiting step portion 212, a first step portion 213 and a second step portion 214 arranged from the first lateral extension plate 211 farther away from the upper edge of the first side plate 103 toward the direction closer to the second supporting body 220, and the second supporting body 220 also includes a second limiting step portion 222, a third step portion 223 and a fourth step portion 224 arranged from the second lateral extension plate 221 farther away from the upper edge of the second side plate 104 toward the direction closer to the first supporting body 210.
[0034] As described above, the tops of the first carrier body 210 and the second carrier body 220 are not flat, but tend to approach the top plate 101 in the first direction AA'. Figure 1 In the preferred embodiment shown, the top of the first bearing portion 210 can be understood as a combination of the first limiting step portion 212, the first step portion 213 and the second step portion 214, and the top of the second bearing portion 220 can be understood as a combination of the second limiting step portion 222, the third step portion 223 and the fourth step portion 224. Specifically, the distance between the upper surface of the first limiting step portion 212 and the top plate 101 in the first direction AA' is greater than the distance between the upper surface of the first step portion 213 and the top plate 101 in the first direction AA', the distance between the upper surface of the first step portion 213 and the top plate 101 in the first direction AA' is greater than the distance between the upper surface of the second step portion 214 and the top plate 101 in the first direction AA', the distance between the upper surface of the second limiting step portion 222 and the top plate 101 in the first direction AA' is greater than the distance between the upper surface of the third step portion 223 and the top plate 101 in the first direction AA', the distance between the upper surface of the third step portion 223 and the top plate 101 in the first direction AA' is greater than the distance between the upper surface of the fourth step portion 224 and the top plate 101 in the first direction AA', and the groove 201 is located between the second step portion 214 and the fourth step portion 224.
[0035] In such Figure 2 In the preferred embodiment shown, the waterproof fixing assembly 10 further includes a pressing block 300, which has a first pressing portion 310, a second pressing portion 320 and a fastening portion 330, wherein the first pressing portion 310 and the second pressing portion 320 are respectively located on both sides of the fastening portion 330. Figure 1-2As shown, the lower edges of the first crimping portion 310 and the second crimping portion 320 along the first direction AA' are respectively suitable for abutting the top surfaces of the second step portion 214 and the fourth step portion 224. Since the contact area between the lower edges of the first crimping portion 310 and the second crimping portion 320 along the first direction AA' and the top surfaces of the second step portion 214 and the fourth step portion 224 is relatively small, in order to save material and space, the top surfaces of the second step portion 214 and the fourth step portion 224 do not need to be too wide, but it is necessary to ensure that the fit will not slip easily.
[0036] In this embodiment, the waterproof fixing assembly 10 further includes a fastener 410 and a locking member 420. The pressing block 300 further includes a fastening hole 331 penetrating the fastening portion 330. The fastener 410 cooperates with the locking member 420 through the fastening hole 331, the slot 201, and the locking member 420. Specifically, in this embodiment, the fastener 410 is a nut, and the locking member 420 is a plate body suitable for clamping with the nut, and when the two are matched, the edge of the second step portion 214 and the fourth step portion 224 close to the top plate 101 in the first direction AA' is suitable for abutting the locking member 420. In some other embodiments of the present application, the fastener 410 and the locking member 420 can be other matching parts with a fastening effect, and the present application does not make specific restrictions here.
[0037] refer to Figure 1-2 As shown, the present application also provides a photovoltaic system, comprising a photovoltaic assembly 30 with a profile 20 installed on the edge, a waterproof fixing assembly 10 as described above, and a bracket 40 suitable for carrying the waterproof fixing assembly 10, wherein the profile 20 has a support portion 21 and a fixing plate 22 extending outward from the bottom surface of the support portion 21. Figure 2 In the preferred embodiment shown, the photovoltaic system further includes a plurality of welding portions 41 , and the welding portions 41 are located at the edges where the bottom plate 102 of the support portion 100 contacts the upper surface of the bracket 40 .
[0038] Furthermore, in Figure 1-2 In the embodiment including the pressing block 300 shown, the first crimping portion 310 is away from the side of the fastening portion 330 (eg, Figure 2 The left side as shown in FIG. 1 is attached to the support portion 21a of the first profile 20a, and the second crimping portion 320 is away from the side of the fastening portion 330 (as shown in FIG. 1 ). Figure 2 The right side as shown) is in contact with the supporting portion 21b of the second profile 20b adjacent to the first profile 20a.
[0039] Furthermore, in this embodiment, the first step portion 213 and the third step portion 223 are respectively adapted to carry the first profile 20a and the second profile 20b, and the edge of the fixing plate 22a of the first profile 20a away from the supporting portion 21a abuts against the side of the first limiting step portion 212 away from the first lateral extension plate 211 (such as Figure 2The edge of the fixing plate 22b of the second profile 20b away from the supporting portion 21b abuts against the side of the second limiting step 222 away from the second lateral extension plate 221 (as shown in the right side). Figure 2 As shown in the left side. Since the first step portion 213 and the third step portion 223 play the role of supporting the profile 20, their width is wider than the rest of the portion, and the supporting strength is greater and more stable. The upper surfaces of the first limiting step portion 212 and the second limiting step portion 222 do not need to cooperate with any structure, and only cooperate with the pressing block 300 in the third direction CC' to limit the profile 20, so they are set to be narrower for the purpose of saving materials and space.
[0040] Embodiment 2
[0041] Figure 3 2 is a cross-sectional view of the waterproof fixing assembly of the second embodiment of the present application. Figure 3 As shown, the waterproof fixing assembly 10' provided in the second embodiment also includes a support portion 100' and a bearing portion 200' located on the support portion 100', but different from the first embodiment, the cross-section of the bearing portion 200' in this embodiment is not an inverted trapezoidal shape, but a wider rectangle.
[0042] It can be understood that in this embodiment, the first lateral extension plate 211' and the second lateral extension plate 221' in the first bearing body 210' and the second bearing body 220' do not extend obliquely upward, but have a 90° corner. Specifically, the first lateral extension plate 211' first extends in the direction away from the second bearing body 220' along the third direction CC', and then bends upward to extend in the direction away from the support portion 100' along the first direction AA', while the second lateral extension plate 221' first extends in the direction away from the first bearing body 210' along the third direction CC', and then bends upward to extend in the direction away from the support portion 100' along the first direction AA'.
[0043] Furthermore, in order to enhance the structural stability of the bearing portion 200', the first bearing body 210' and the second bearing body 220' in this embodiment further include reinforcing ribs 230, which are adapted to connect the two bent parts of the first lateral extension plate 211' and the second lateral extension plate 221'.
[0044] The rest of the waterproof fixing assembly 10' in the second embodiment is basically the same as that in the first embodiment, and will not be described again here. For details, please refer to the above related Figure 1-2 Description.
[0045] Embodiment 3
[0046] Figure 4 2 is a cross-sectional view of the waterproof fixing assembly of the third embodiment of the present application. Figure 4As shown, the waterproof fixing assembly 10" provided in the third embodiment also includes a support portion 100" and a bearing portion 200" located on the support portion 100", but different from the first embodiment, the cross-section of the bearing portion 200" in this embodiment is not an inverted trapezoidal shape, but a rectangular shape. And compared with the second embodiment, the first lateral extension plate 211" and the second lateral extension plate 221" in the third embodiment are not bent, but directly extend upward along the first direction AA'. In addition, the rest of the waterproof fixing assembly 10" in the third embodiment is basically the same as that in the first embodiment, and will not be described again here. For details, please refer to the above related Figure 1-2 Description.
[0047] The basic concepts have been described above. Obviously, for those skilled in the art, the above utility model disclosure is only used as an example and does not constitute a limitation of the present application. Although not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to the present application. Such modifications, improvements and corrections are suggested in the present application, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of the present application.
[0048] 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.
[0049] 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 utility model embodiments, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, drawing 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.
[0050] 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. A waterproof fixing assembly, suitable for carrying a photovoltaic assembly, characterized in that: The waterproof fixing assembly comprises a supporting portion and a bearing portion located above the supporting portion, wherein: The bearing portion includes a first bearing body extending from a first position of the supporting portion, a second bearing body extending from a second position of the supporting portion, and a groove located between the tops of the first bearing body and the second bearing body, and the distance between the tops of the first bearing body and the second bearing body and the upper surface of the supporting portion in a first direction perpendicular to the upper surface of the supporting portion gradually decreases along a direction close to the groove, and the tops of the first bearing body and the second bearing body are respectively attached to the bottoms of two adjacent photovoltaic modules; wherein, The upper surfaces of the first carrying body, the second carrying body and the supporting portion form a drainage groove in the second direction in which the supporting portion extends, and the drainage groove is suitable for draining liquid flowing into the drainage groove through the groove along the second direction.
2. The waterproof fixing assembly according to claim 1, characterized in that: The first supporting body includes a first lateral extension plate extending obliquely from the first position simultaneously along the first direction and gradually away from the second supporting body, and the second supporting body includes a second lateral extension plate extending obliquely from the second position simultaneously along the first direction and gradually away from the first supporting body.
3. The waterproof fixing assembly according to claim 2, characterized in that: The first bearing body further comprises a first step portion and a second step portion arranged from the first lateral extension plate further away from the upper edge of the first side plate toward the direction close to the second bearing body, and the second bearing body further comprises a third step portion and a fourth step portion arranged from the second lateral extension plate further away from the upper edge of the second side plate toward the direction close to the first bearing body; wherein, The distance between the upper surface of the first step portion and the upper surface of the support portion in the first direction is greater than the distance between the upper surface of the second step portion and the upper surface of the support portion in the first direction; The distance between the upper surface of the third step portion and the upper surface of the support portion in the first direction is greater than the distance between the upper surface of the fourth step portion and the upper surface of the support portion in the first direction; The slot is located between the second step portion and the fourth step portion.
4. The waterproof fixing assembly according to claim 3, characterized in that: It also includes a first limiting step portion located between the first step portion and the upper edge of the first lateral extension plate further away from the first side plate, and a second limiting step portion located between the third step portion and the upper edge of the second lateral extension plate further away from the second side plate; wherein, The distance between the upper surface of the first position-limiting step portion and the upper surface of the support portion in the first direction is greater than the distance between the upper surface of the first step portion and the upper surface of the support portion in the first direction; A distance between an upper surface of the second position-limiting step portion and an upper surface of the support portion in the first direction is greater than a distance between an upper surface of the third step portion and an upper surface of the support portion in the first direction.
5. The waterproof fixing assembly according to claim 3, characterized in that: It also includes a pressing block having a fastening portion and a first crimping portion and a second crimping portion located on both sides of the fastening portion, wherein the lower edges of the first crimping portion and the second crimping portion along the first direction are respectively suitable for abutting against the top surfaces of the second step portion and the fourth step portion.
6. The waterproof fixing assembly according to claim 5, characterized in that: It also includes a fastener and a locking piece. The pressing block also has a fastening hole that penetrates the fastening part. The fastener cooperates with the locking piece through the fastening hole and the slot. The second step portion and the fourth step portion abut against the locking piece near the edge of the support portion in the first direction.
7. The waterproof fixing assembly according to any one of claims 1 to 6, characterized in that: The support portion includes a top plate, a bottom plate, and a first side plate and a second side plate located between the top plate and the bottom plate. The first position is an upper edge of the first side plate, and the second position is an upper edge of the second side plate.
8. A photovoltaic system, characterized in that: include: A photovoltaic module, wherein a profile is installed at the edge of the photovoltaic module, and the profile has a support portion and a fixing plate extending outward from the bottom surface of the support portion; The waterproof fixing assembly according to any one of claims 1 to 7, suitable for carrying the photovoltaic assembly; and The bracket is suitable for carrying the waterproof fixing component.
9. The photovoltaic system according to claim 8, characterized in that: It also includes a plurality of welding parts, which are located at the edges where the bottom plate of the support part contacts the upper surface of the bracket.
10. The photovoltaic system according to claim 8, characterized in that: When the waterproof fixing assembly as claimed in claim 4 is used: The edge of the fixing plate of the first profile away from the supporting portion abuts against the side of the first limiting step away from the first laterally extending plate, and the edge of the fixing plate of the second profile away from the supporting portion abuts against the side of the second limiting step away from the second laterally extending plate; The bottom surface of the first profile at least partially contacts the upper surface of the first step portion, and the bottom surface of the second profile at least partially contacts the upper surface of the third step portion.
11. The photovoltaic system according to claim 8, characterized in that: When the waterproof fixing assembly as described in claim 5 is used, the side of the first crimping portion away from the fastening portion fits the supporting portion of the first profile, and the side of the second crimping portion away from the fastening portion fits the supporting portion of the second profile adjacent to the first profile.