A bezel and frame assembly

Abstract

The application provides a kind of frame and frame assembly, which relates to the technical field of solar panel frame structure.The frame upper side has a slot with opening towards inside, the slot is used to install solar panel.The lower part of the slot is a strong frame part with hollow structure inside, the hollow part is a rectangular hole slot.The top side wall and bottom side wall of the rectangular hole slot each have at least two protrusions in axial strip shape.At least one reinforcing member is placed in the rectangular hole slot, the reinforcing member includes a main support part with wide and flat cross section.The cross section of the main support part has two wide sides and two short sides, and the two short sides respectively abut against two opposite sides or two opposite corners in the rectangular hole slot.The length of the reinforcing member is less than or equal to the length of the frame, and the reinforcing member can be placed at the position with insufficient structural strength according to requirements, so as to reduce the frame material and effectively reduce the overall frame cost of solar panel.

Description

Technical Field

[0001] This utility model relates to the field of solar panel frame structure technology, specifically a frame and frame assembly. Background Technology

[0002] Traditional solar panel frames are mostly made of aluminum alloy, fiberglass composite materials, or zinc-aluminum-magnesium steel. Solar laminates (i.e., solar panels) consist of components such as glass panels, solar cells, backsheets, encapsulant films, and junction boxes. During installation, the four sides of the solar panel are installed in the grooves of the frame, and adjacent frames are connected by corner brackets.

[0003] The frame is primarily used to support the weight of the entire solar panel and withstand external forces such as wind pressure and snow loads. Therefore, the frame design must consider its mechanical load-bearing capacity. When designing the frame dimensions, to ensure the overall structural strength, the point of maximum stress on the frame (generally the middle position) must be considered, and the cross-sectional dimensions of the frame are designed based on the stress conditions at this point. Currently, solar frames are typically extruded, resulting in a uniform cross-sectional dimension along the length. However, in practical applications, the ends of the frame experience less stress, so the cross-sectional dimensions at the ends do not need to match those at the middle position, leading to material waste.

[0004] The patent with publication number CN220173177 discloses a frame and a photovoltaic module. The filler designed in this patent is required to be in close contact with the inner wall of the rectangular slot of the frame. This design makes the filler difficult to process, costly, and difficult to install into the rectangular slot of the frame.

[0005] Patent CN220234525 discloses a photovoltaic module frame and a photovoltaic module. The cavity reinforcing ribs designed in this patent are still made using the extrusion molding method, which not only fails to save materials but also causes the corner brackets to be unable to be installed.

[0006] Therefore, how to solve the above problems is the primary issue that urgently needs to be addressed in this field. Utility Model Content

[0007] The purpose of this application is to provide a solar panel frame that can save materials and reduce costs, while also allowing for structural reinforcement of the solar panel frame according to strength requirements.

[0008] The technical solution adopted by this utility model to solve its technical problem is:

[0009] A frame has a first length along the axial direction and inner and outer sides arranged opposite each other along the axial direction. The upper side of the frame has a groove with an opening facing inward. A reinforcing frame is provided below the groove. A rectangular slot is provided on the reinforcing frame. The rectangular slot includes an inner sidewall, an outer sidewall, a top sidewall, and a bottom sidewall. The connection between the inner sidewall and the top sidewall is the upper inner corner. The connection between the inner sidewall and the bottom sidewall is the lower inner corner. The connection between the outer sidewall and the top sidewall is the upper outer corner. The connection between the outer sidewall and the bottom sidewall is the lower outer corner. At least two protrusions with an axial strip structure are provided on both the top and bottom sidewalls. At least one reinforcing member is provided in the rectangular slot. The reinforcing member has a second length along the axial direction.

[0010] The reinforcing member includes a main support portion, the cross-section of which is wide and flat in the vertical axis.

[0011] The cross-section of the main support has two wide sides and two short sides, with the two short sides abutting against the two opposite sides or two opposite corners of the rectangular slot.

[0012] Furthermore, the two short sides of the main support portion of the reinforcing member abut against the upper inner corner and the lower outer corner of the rectangular slot, respectively, and the reinforcing member is inclinedly disposed within the rectangular slot.

[0013] Furthermore, the reinforcing member also includes a secondary support portion, the cross-section of which is wide and flat in the vertical axis, and the cross-section of which has two narrower end faces, which respectively support the lower inner corner and the middle of the wide side of the main support portion.

[0014] Furthermore, the two short sides of the main support portion of the reinforcing member abut against the two protrusions of the top and bottom sidewalls, respectively.

[0015] Furthermore, two reinforcing members are provided in the rectangular slot, and the two reinforcing members are arranged in a V-shape. The upper short sides of the main support parts of the two reinforcing members abut against the inner upper corner and the outer upper corner, respectively, and the lower short sides of the main support parts of the two reinforcing members abut against the middle position of the bottom sidewall.

[0016] Furthermore, two reinforcing members are provided in the rectangular slot, with the main support portions of the two reinforcing members arranged side by side, and the short sides of the main support portions abutting against the protrusions of the top sidewall and the bottom sidewall, respectively.

[0017] Furthermore, two reinforcing members are provided in the rectangular slot. The main support parts of the two reinforcing members abut against the inner sidewall and the outer sidewall, respectively. The two short sides of the reinforcing member abutting against the inner sidewall abut against the upper inner corner and the lower inner corner, respectively, and the two short sides of the reinforcing member abutting against the outer sidewall abut against the upper outer corner and the lower outer corner, respectively.

[0018] Furthermore, the main support portion of the reinforcing member abuts against the inner sidewall, and the two short sides of the reinforcing member abut against the upper inner corner and the lower inner corner, respectively.

[0019] Furthermore, the reinforcing member also includes a secondary support portion, which is located near the bottom sidewall. The cross-section of the secondary support portion along the vertical axis is a wide and flat structure. The cross-section of the secondary support portion has two narrower end faces, which respectively support the lower outer corner and the lower end of the main support portion.

[0020] Furthermore, the reinforcing member also includes a secondary support portion, the cross-section of which is wide and flat in the vertical axis, and the cross-section of which has two narrower end faces, which respectively support the middle position of the outer side wall and the main support portion.

[0021] Furthermore, the reinforcing member also includes a secondary support portion, the cross-section of which is wide and flat in the vertical axis, and the cross-section of which has two narrower end faces. The two narrower end faces of the secondary support portion support the outer lower corner and the upper end of the main support portion, respectively. The secondary support portion is inclinedly disposed in the rectangular slot.

[0022] Furthermore, the second length of the reinforcing member is less than the first length of the frame, wherein the first length is the axial length of the inner sidewall;

[0023] Two mounting holes are spaced apart at the bottom of the frame, and the second length of the reinforcing member is greater than the distance between the two mounting holes;

[0024] The rectangular slot of the reinforcing frame has stops at both ends of the reinforcing member, which restrict the reinforcing member to the middle position of the frame.

[0025] Furthermore, a stamped recess is provided on the inner side of the frame, which causes the inner wall of the rectangular slot to protrude partially to form a stop, and multiple stops are provided on the inner wall of the rectangular slot.

[0026] Furthermore, a drainage hole is punched at the bottom of the frame, and the drainage hole forms an inner flap, which acts as a stop to restrict the reinforcing member to the middle position of the frame.

[0027] Furthermore, the second length of the reinforcing member is equal to the axial length of the inner sidewall. Multiple rivets are stamped on the inner side of the frame at both ends of the frame, and the rivets cause the inner sidewall and the main support to bulge inward simultaneously to form a protrusion.

[0028] A frame component includes a border and corner brackets for connecting two adjacent borders, with at least one border having a reinforcing member inside.

[0029] The beneficial effects of this utility model are:

[0030] 1. The placement of reinforcement components can be determined based on requirements. Since the reinforcement components are only placed where structural strength is insufficient, such as the long side of a rectangular solar panel, waste of frame material can be reduced, effectively lowering the overall frame cost of the solar panel. If the solar panel is large or subjected to significant stress, other reinforcement components can be used as follows: Figure 1 As shown, reinforcements are placed within all four borders.

[0031] 2. The reinforcing components are made of readily available materials or are processed using simple methods, thereby reducing the production cost of the reinforcing components and preventing the production cost of the reinforcing components from offsetting the cost savings from reducing the raw materials of the frame, so as to achieve the goal of reducing the overall frame cost of the solar panel.

[0032] 3. The size of the reinforcing part is slightly smaller than the size of the rectangular hole in the frame. In actual installation, it is easy to place the reinforcing part in the rectangular hole in the frame, which can greatly improve the installation efficiency.

[0033] 4. After the reinforcement is installed inside the frame, there is still space for corner bracket installation on both sides of the frame. Therefore, no changes are required in subsequent operations, which improves work efficiency and is compatible with all current production line equipment, processes and operating habits.

[0034] 5. The reinforcing components have various structural forms, and different structural forms of reinforcing components can be designed according to the requirements of different regions for the compressive strength of the frame components. Attached Figure Description

[0035] Figure 1 An exploded view of a border component for applying the border provided in this application;

[0036] Figure 2 A partial exploded perspective view of a border component provided in this application;

[0037] Figure 3 A cross-sectional view of a border provided in Embodiment 1 of this application;

[0038] Figure 4 A planar schematic diagram of a border provided for this application;

[0039] Figure 5 A partial lateral cross-sectional view of a border provided in this application;

[0040] Figure 6 A partial longitudinal cross-sectional view of a border provided in this application;

[0041] Figure 7 A cross-sectional view of a border provided in Embodiment 2 of this application;

[0042] Figure 8 A cross-sectional view of a frame provided in Embodiment 3 of this application;

[0043] Figure 9 A cross-sectional view of a border provided in Embodiment 4 of this application;

[0044] Figure 10 A cross-sectional view of a border provided in Embodiment 5 of this application;

[0045] Figure 11 A cross-sectional view of a frame provided in Embodiment Six of this application;

[0046] Figure 12 A cross-sectional view of a border provided in Embodiment 7 of this application;

[0047] Figure 13 A cross-sectional view of a frame provided in Embodiment 8 of this application;

[0048] Figure 14 A cross-sectional view of a border provided in Embodiment 9 of this application;

[0049] Figure 15 for Figure 14 A partial schematic diagram of the transverse cross-section;

[0050] Figure 16 A cross-sectional view of a frame provided in Embodiment 10 of this application;

[0051] Figure 17 A cross-sectional view of a frame provided in Embodiment Eleven of this application;

[0052] Figure 18 A cross-sectional view of a frame provided in Embodiment Twelve of this application;

[0053] Figure 19 This is a cross-sectional view of a border provided in Embodiment Thirteen of this application.

[0054] In the diagram: Frames 1 and 4; First length D1; Inner side 10a; Outer side 10b; Groove 11; Reinforcing frame 13; Rectangular slot 130; Inner side wall 131; Top side wall 132; Outer side wall 133; Bottom side wall 134; Inner upper corner a1; Inner lower corner a2; Outer upper corner b1; Outer lower corner b2; Protrusions 1321, 1322, 1341, 1342; Reinforcing member 2; Main support parts 21, 21a, 21b, 21c, 21d, 21e, 21f, 21g, 21h, 21i; Wide sides 211, 212; Short sides 213, 213a, 213b, 213c, 213d. 213e, 213f, 213g; short sides 214, 214a, 214b, 214c, 214d, 214e, 214f, 214g; second length D2; bottom of frame 14; mounting holes 141, 142; rivet 15; protrusions 151, 215g; spacing D3; recess 16; stop 161; stop 17; drain hole 171; protrusion 18; secondary support parts 22, 22d, 22e, 22f, 22g, 22h, 22i, 22j; end faces 221, 221d, 222, 222d; corner bracket 3; pin 31; ratchet 311; solar panel 5. Detailed Implementation

[0055] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be described in detail below with reference to the accompanying drawings. The described embodiments are merely a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort should fall within the protection scope of this application.

[0056] See Figure 1 The diagram shows a schematic of a solar panel installation structure, mainly including a solar panel 5. The solar panel 5 is installed around a frame 1 and 4, and adjacent frames are connected by corner brackets 3. Frame 1 is an example of a frame installation provided in this application.

[0057] like Figures 2 to 4As shown, the frame 1 has a first length D1 along the axial direction, and inner side 10a and outer side 10b arranged opposite each other along the axial direction. The upper side of the frame 1 has a groove 11 with an opening facing inward, which is used to install the solar panel 5. A reinforcing frame portion 13 is provided below the groove, and the interior of the reinforcing frame portion 13 has a rectangular slot 130, which penetrates the reinforcing frame portion 13 along the axial direction. The rectangular slot 130 has an inner sidewall 131, an outer sidewall 133, a top sidewall 132, and a bottom sidewall 134. The connection between the inner sidewall 131 and the top sidewall 132 is the upper inner corner a1, the connection between the inner sidewall 131 and the bottom sidewall 134 is the lower inner corner a2, the connection between the outer sidewall 133 and the top sidewall 132 is the upper outer corner b1, and the connection between the outer sidewall 133 and the bottom sidewall 134 is the lower outer corner b2. The top sidewall 132 has two protrusions 1321 and 1322, and the bottom sidewall 134 has two protrusions 1341 and 1342, each protrusion having a strip-like structure along the axial direction.

[0058] The reinforcing member 2 includes a main support portion 12, which has a cross-section perpendicular to the axial direction and is wide and flat. The cross-section of the main support portion 12 has two wide sides 211 and 212 and two short sides 213 and 214. The two short sides 213 and 214 of the main support portion 12 abut against the upper inner corner a1 and the lower outer corner b2, respectively. The main support portion 12 is inclinedly disposed within the rectangular slot 130 of the frame 1. The reinforcing member has a second axial length D2, which is less than the axial length of the inner sidewall 131. The first length D1 is the axial length of the inner sidewall 131. Two mounting holes 141 and 142 are spaced apart at the bottom 14 of the frame. The second length D2 of the reinforcing member is greater than the distance D3 between the two mounting holes 141 and 142.

[0059] Because the reinforcing member 2 is made to a size that facilitates installation within the rectangular slot 130, it is necessary to prevent the reinforcing member 2 from shifting arbitrarily within the rectangular slot 130. For example... Figure 5 As shown, the inner side 10a of the reinforcing frame of the frame is stamped with a plurality of recesses 16, and the recesses 16 cause the inner sidewall of the rectangular slot to protrude partially, forming a stop 161. The rectangular slot 130 of the reinforcing frame 13 has stops 161 at both ends of the reinforcing member 2, and the two stops 161 restrict the reinforcing member 2 to the middle position of the frame. Figure 6 Another feasible approach is shown, in which a drainage hole 171 is punched at both ends of the reinforcement 2 at the bottom 14 of the frame, and at the same time an inwardly bent inner flap is formed, which serves as a stop 17 to restrict the reinforcement 2 to the middle position of the frame.

[0060] The reinforcing components in this application include various structural forms.

[0061] Figure 7 The structure shown is a second embodiment of this application. The difference between this embodiment and the first embodiment is that this embodiment adds a secondary support portion 22. The cross-section of the secondary support portion 22 along its vertical axis is a wide and flat structure. The cross-section of the secondary support portion 22 has narrower end faces 221 and 222, and the two narrower end faces 221 and 222 of the secondary support portion 22 respectively abut against the inner lower corner a2 and the middle position of the wide side 211 of the main support portion. In terms of manufacturing, the main support portion 21 and the secondary support portion 22 can be integrally molded as a whole, depending on the selected material.

[0062] Figure 8 The structure shown is the third embodiment of this application. In the third embodiment, two reinforcing members 2 are provided in the rectangular slot 130 of the reinforcing frame 13, and the two reinforcing members 2 are arranged in a V-shape. The upper short sides 213a of the main support parts 21a of the two reinforcing members abut against the inner upper corner a1 and the outer upper corner b1, respectively, and the lower short sides 214a of the two main support parts 21a abut against the middle position of the bottom sidewall 134, arranged in a V-shape. In terms of manufacturing, the two main support parts 21a can be integrally molded as a whole according to the selected material.

[0063] Figure 9 The structure shown is the fourth embodiment of this application. In the fourth embodiment, two reinforcing members 2 are provided in the rectangular slot 130 of the reinforcing frame 13, and the main support portions 21b of the two reinforcing members are arranged side by side. The upper short sides 213b of the two main support portions 21b abut against the two protrusions 1321 and 1322 of the top sidewall, respectively, and the lower short sides 214b of the two main support portions 21b abut against the two protrusions 1341 and 1342 of the bottom sidewall, respectively.

[0064] Figure 10 The structure shown is the fifth embodiment of this application. In the fifth embodiment, a reinforcing member 2 is provided in the rectangular slot 130 of the reinforcing frame 13. The upper short side 213c of the main support part 21c of the reinforcing member abuts between the two protrusions 1321 and 1322 on the top sidewall, and the lower short side 214c of the main support part 21c of the reinforcing member abuts between the two protrusions 1341 and 1342 on the bottom sidewall.

[0065] Figure 11The structure shown is the sixth embodiment of this application. The difference between this embodiment and the second embodiment is that in this embodiment, the main support portion 21d of the reinforcing member abuts against the inner sidewall 131, and the two short sides 213d and 214d of the main support portion abut against the upper inner corner a1 and the lower inner corner a2, respectively. The cross-section of the secondary support portion 22d along its vertical axis is a wide and flat structure, and the narrower end faces 221d and 222d of the secondary support portion 22d respectively support the lower outer corner b2 and the upper end side of the main support portion 21d, in an inclined state. In manufacturing, the main support portion 21d and the secondary support portion 22d can be integrally molded as a whole, depending on the selected material.

[0066] Figure 12 The structure shown is the seventh embodiment of this application. The difference between this embodiment and the second embodiment is that in this embodiment, the main support portion 21e of the reinforcing member abuts against the inner sidewall, and the two short sides 213e and 214e of the main support portion 21e abut against the upper inner corner a1 and the lower inner corner a2, respectively. The cross-section of the secondary support portion 22e along the vertical axis is a wide and flat structure, and the narrower end faces of the secondary support portion 22e respectively support the middle position of the outer sidewall 133 and the main support portion 21e. In manufacturing, the main support portion 21e and the secondary support portion 22e can be integrally molded as a whole, depending on the selected material.

[0067] Figure 13 The structure shown is the eighth embodiment of this application. The difference between this embodiment and the second embodiment is that in this embodiment, the main support portion 21f of the reinforcing member abuts against the inner sidewall, and the two short sides 213f and 214f ​​of the main support portion 21f abut against the upper inner corner a1 and the lower inner corner a2, respectively. The secondary support portion 22f abuts against the bottom sidewall 134, and the cross-section of the secondary support portion 22f along its vertical axis is a wide and flat structure, with the narrower end faces of the secondary support portion 22f supporting the lower outer corner b2 and the lower end side of the main support portion 21f, respectively. In manufacturing, the main support portion 21f and the secondary support portion 22f can be integrally molded as a whole, depending on the selected material.

[0068] Figure 14 The structure shown is the ninth embodiment of this application. In the ninth embodiment, the main support portion 21g of the reinforcing member abuts against the inner sidewall, and the two short sides 213g and 214g of the main support portion 21g abut against the upper inner corner a1 and the lower inner corner a2, respectively. The length of the main support portion 21g is equal to the axial length of the inner sidewall 131 of the frame. Multiple rivet points 15 are stamped at both ends of the inner side 10a of the frame, and the inner sidewall and the main support portion 21g simultaneously protrude inward to form a shape such that... Figure 15The protrusions 151 and 215g are shown. When the corner bracket 3 is inserted into the frame, the ratchet 311 on the inner side of the pin 31 of the corner bracket 3 will be squeezed and clamped by the protrusion 215g, and will be firmly connected with the frame. At the same time, the main support part 21g of the reinforcing member is also fixed.

[0069] Figure 16 The structure shown is the tenth embodiment of this application. In the tenth embodiment, two reinforcing members 2 are provided in the rectangular slot 130 of the reinforcing frame 13, and the main support portions 21h of the two reinforcing members abut against the inner sidewall 131 and the outer sidewall 133 of the frame, respectively. The two short sides of the main support portion 21h abutting against the inner sidewall 131 abut against the upper inner corner a1 and the lower inner corner a2, respectively. The two short sides of the main support portion 21h abutting against the outer sidewall 133 abut against the upper outer corner b1 and the lower outer corner b2, respectively. Multiple rivet points 15 are stamped at both ends of the inner side 10a of the frame. The details of the rivet points 15 are the same as in the ninth embodiment and will not be repeated here.

[0070] Figure 17 The structure shown is the eleventh embodiment of this application. The difference between this embodiment and the first embodiment is that the main support portion 21i of the reinforcing member 2 in this embodiment is provided with a plurality of protrusions 18, and the protrusions 18 penetrate the main support portion 21i along the axial direction (i.e., the direction of the second length D2). Here, one or more protrusions can be provided, and the protrusion direction of the protrusions can be towards one side or towards both sides. As a specific implementation, the main support portion 21i in this embodiment is provided with a plurality of protrusions 18, the protrusion directions of adjacent protrusions are opposite, and the plurality of protrusions together form a wave-shaped structure.

[0071] Figure 18 The structure shown is the twelfth embodiment of this application. The difference between this embodiment and the first embodiment is that, in this embodiment, several layers of secondary support portions are provided on one side of the main support portion 21. The cross-section of the secondary support portions is wide and flat, and the width of the secondary support portions decreases sequentially in the direction away from the main support portion 21. Preferably, the secondary support portions are located in the middle of adjacent secondary support portions or main support portions. The secondary support portions can be provided on one side of the wide side 211 of the main support portion 21, or on one side of the wide side 212 of the main support portion 21. As a specific implementation, in this embodiment, the secondary support portions are provided on one side of the wide side 212 of the main support portion 21, and two layers of secondary support portions 22g and 22h are provided on one side of the wide side 212 of the main support portion 21. In manufacturing, the main support portion 21 and the secondary support portions 22g and 22h can be integrally formed or welded together, depending on the selected material.

[0072] Figure 19The structure shown is the thirteenth embodiment of this application. The difference between this embodiment and the twelfth embodiment is that, in this embodiment, several layers of secondary support parts are provided on both sides of the main support part 21. As a specific implementation, in this embodiment, two layers of secondary support parts 22g and 22h are provided on one side of the wide side 212 of the main support part 21, and two layers of secondary support parts 22i and 22j are provided on one side of the wide side 211 of the main support part 21. In terms of manufacturing, the main support part 21 and the secondary support parts 22g, 22h, 22i, and 22j can be integrally formed or welded together, depending on the selected material.

[0073] In summary, by reducing the size of the frame reinforcement 13 and the thickness of the surrounding material, the amount of aluminum alloy or glass fiber composite material used can be reduced. After the amount of material used is reduced, its mechanical strength will inevitably decrease. Therefore, a reinforcing member 2 is added in the rectangular slot 130. The reinforcing member can be made of metal materials such as aluminum, magnesium, zinc steel, stainless steel, etc., or non-metallic materials such as glass fiber, carbon fiber, aramid, rigid polyurethane foam, etc.

[0074] The reinforcing component does not need to fit tightly to the inner wall of the rectangular slot; a gap of 0.1~1mm can be left to facilitate insertion. After the reinforcing component is inserted, the space between the reinforcing component and the rectangular slot can be filled with foamed material, plastic material, etc.

[0075] Preferably, the length of the reinforcing member is at least 50mm shorter than the length of the frame. When placing it, space should be left on both sides of the frame for placing the corner bracket. The reinforcing member can be fixed in the rectangular slot or not.

[0076] Other embodiments obtained by those skilled in the art based on the embodiments provided in this application by combining, splitting, or reorganizing the embodiments of this application do not exceed the protection scope of this application.

[0077] The above detailed embodiments have provided a detailed explanation of the purpose, technical solutions, and beneficial effects of the embodiments of this application. The above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. That is, any modifications, equivalent substitutions, improvements, etc., made on the basis of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A frame having a first length along an axial direction, and inner and outer sides arranged opposite to each other along the axial direction, the upper side of the frame having a groove with an opening facing inward, a reinforcing frame portion being provided below the groove, the reinforcing frame portion having a rectangular slot, the rectangular slot including an inner sidewall, an outer sidewall, a top sidewall, and a bottom sidewall, the connection between the inner sidewall and the top sidewall being an inner upper corner, the connection between the inner sidewall and the bottom sidewall being an inner lower corner, the connection between the outer sidewall and the top sidewall being an outer upper corner, the connection between the outer sidewall and the bottom sidewall being an outer lower corner, and at least two protrusions with an axial strip-like structure being provided on both the top and bottom sidewalls, characterized in that: At least one reinforcing member is provided in the rectangular slot, and the reinforcing member has a second length along the axial direction; The reinforcing member includes a main support portion, the cross-section of which is wide and flat in the vertical axis. The cross-section of the main support has two wide sides and two short sides, with the two short sides abutting against the two opposite sides or two opposite corners of the rectangular slot.

2. A frame according to claim 1, characterized in that: The two short sides of the main support portion of the reinforcing member abut against the upper inner corner and the lower outer corner of the rectangular slot, respectively, and the reinforcing member is inclinedly disposed in the rectangular slot.

3. A frame according to claim 2, characterized in that: The reinforcing member also includes a secondary support portion. The cross-section of the secondary support portion along the vertical axis is a wide and flat structure. The cross-section of the secondary support portion has two narrower end faces, and the two narrower end faces of the secondary support portion are respectively supported at the lower inner corner and the middle position of the wide side of the main support portion.

4. A frame according to claim 1, characterized in that: The two short sides of the main support portion of the reinforcing member abut against the two protrusions of the top and bottom sidewalls, respectively.

5. A frame according to claim 1, characterized in that: Two reinforcing members are provided in the rectangular slot. The two reinforcing members are arranged in a V-shape. The upper short sides of the main support of the two reinforcing members abut against the inner upper corner and the outer upper corner, respectively. The lower short sides of the main support of the two reinforcing members abut against the middle of the bottom sidewall.

6. A frame according to claim 1, characterized in that: Two reinforcing members are provided in the rectangular slot. The main support parts of the two reinforcing members are arranged side by side, and the short sides of the main support parts abut against the protrusions of the top sidewall and the bottom sidewall, respectively.

7. A frame according to claim 1, characterized in that: The rectangular slot is provided with two reinforcing members. The main support parts of the two reinforcing members abut against the inner sidewall and the outer sidewall respectively. The two short sides of the reinforcing member abutting against the inner sidewall abut against the upper inner corner and the lower inner corner respectively, and the two short sides of the reinforcing member abutting against the outer sidewall abut against the upper outer corner and the lower outer corner respectively.

8. A frame according to claim 1, characterized in that: The main support portion of the reinforcing member abuts against the inner sidewall, and the two short sides of the reinforcing member abut against the upper inner corner and the lower inner corner, respectively.

9. A frame according to claim 8, characterized in that: The reinforcing member also includes a secondary support portion, which is located against the bottom side wall. The cross-section of the secondary support portion along the vertical axis is a wide and flat structure. The cross-section of the secondary support portion has two narrower end faces, which respectively support the lower outer corner and the lower end of the main support portion.

10. A frame according to claim 8, characterized in that: The reinforcing member also includes a secondary support portion, the cross-section of which is wide and flat in the vertical axis, and the cross-section of which has two narrower end faces, which respectively support the middle position of the outer side wall and the main support portion.

11. A frame according to claim 8, characterized in that: The reinforcing member also includes a secondary support portion. The cross-section of the secondary support portion along the vertical axis is a wide and flat structure. The cross-section of the secondary support portion has two narrower end faces. The two narrower end faces of the secondary support portion support the outer lower corner and the upper end side of the main support portion, respectively. The secondary support portion is inclinedly disposed in the rectangular slot.

12. The frame according to any one of claims 1-11, characterized in that: The second length of the reinforcing member is less than the first length of the frame, wherein the first length is the axial length of the inner sidewall; Two mounting holes are spaced apart at the bottom of the frame, and the second length of the reinforcing member is greater than the distance between the two mounting holes; The rectangular slot of the reinforcing frame has stops at both ends of the reinforcing member, which restrict the reinforcing member to the middle position of the frame.

13. A frame according to claim 12, characterized in that: The inner side of the frame is provided with a stamped recess, which causes the inner wall of the rectangular slot to protrude partially to form a stop. Multiple stops are provided on the inner wall of the rectangular slot.

14. A frame according to claim 12, characterized in that: A drainage hole is punched at the bottom of the frame, and the drainage hole forms an inner flap. The inner flap acts as a stop to restrict the reinforcing member to the middle position of the frame.

15. A frame according to claim 8, characterized in that: The second length of the reinforcing member is equal to the axial length of the inner sidewall. Multiple rivets are stamped on the inner side of the frame at both ends of the frame, and the rivets cause the inner sidewall and the main support to bulge inward simultaneously to form a protrusion.

16. A frame component, comprising a border and corner brackets for connecting two adjacent borders, characterized in that: At least one frame is provided with a reinforcing member as described in any one of claims 1-15.

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