Polishing method for transparent cover plate in flat plate collector and flat plate collector

Abstract

The invention discloses a polishing method for a transparent cover plate in a flat plate collector and the flat plate collector. According to the polishing method for the transparent cover plate in the flat plate collector, a frame in the flat plate collector is bent to form a rectangular frame structure, a corner part is formed at the bent part of the frame, and the polishing method comprises the steps that the frame is bent to form the rectangular frame structure, and after the two ends of the frame are connected together, the radian x of the corner part on the frame is measured; if # imgabs0 #, the corners of the transparent cover plate are polished; the distance between the transparent cover plate and the outer side edge of the frame is a. The corners of the transparent cover plate are accurately polished, so that the overall machining quality of the flat plate collector is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of heat collectors, and in particular relates to a method for polishing a transparent cover plate in a flat-plate heat collector and the flat-plate heat collector. Background Art

[0002] At present, water heaters are household appliances commonly used in people's daily lives. Water heaters are divided into electric water heaters, gas water heaters and solar water heaters. Solar water heaters use solar energy to heat water, which is more in line with the requirements of green environmental protection and is widely promoted and used. Among them, in order to use solar energy to heat water, solar water heaters are usually equipped with flat plate collectors, which use solar energy to finally heat the water in the solar water heater.

[0003] For a conventional flat-plate collector, it usually includes a frame, a heat-absorbing plate core, a transparent cover plate and a bottom plate, wherein the frame is the main supporting component, and the conventional frame is usually formed by splicing various edges. In order to facilitate processing, a frame with an integrated structure is widely used. For example, Chinese patent announcement No. CN 204460799 U discloses a solar flat-plate collector frame, which is formed by bending a profile cut. However, due to the limitation of the bending of the profile, the corners of the frame have a certain curvature, and the angle of the transparent cover plate also needs to be polished accordingly.

[0004] In the prior art, workers usually grind the transparent cover according to their experience, which results in uneven sizes of the polished transparent cover, which in turn reduces the overall quality of the flat plate collector. In view of this, how to design a technology for accurately grinding the corners of the transparent cover to improve the overall processing quality of the flat plate collector is a technical problem to be solved by the present invention. Summary of the invention

[0005] The present invention provides a flat plate collector and an assembling method thereof, which can realize accurate grinding of the corners of a transparent cover plate to improve the overall processing quality of the flat plate collector.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0007] In one aspect, the present invention provides a method for polishing a transparent cover plate in a flat plate collector, wherein a frame in the flat plate collector is formed into a rectangular frame structure by bending, and the bent portion of the frame forms a corner portion, comprising: bending the frame to form a rectangular frame structure, and connecting the two ends of the frame together, and measuring the curvature x of the corner portion on the frame; if Then the corners of the transparent cover are polished;

[0008] The distance between the transparent cover and the outer edge of the frame is a.

[0009] The grinding depth of the corner of the transparent cover is obtained by calculating the curvature of the corner formed after the frame is bent and combining the size of the frame and the transparent cover. Thus, by relying on specific parameter values, the specific grinding depth requirement can be obtained according to the curvature of the corner formed after the frame of the same batch is bent and the size of the transparent cover of the same batch. This allows on-site operators to perform grinding based on the obtained grinding reference, thereby achieving precise grinding of the corners of the transparent cover and improving the overall processing quality of the flat-plate collector.

[0010] In one embodiment of the present application, the grinding depth of the corner of the transparent cover plate is y=0.414x-1.414a.

[0011] In one embodiment of the present application, if There is no need to grind the corners of the transparent cover.

[0012] Another embodiment of the present invention further provides a flat plate collector, comprising:

[0013] A frame, wherein the frame is bent to form a rectangular frame structure, two ends of the frame are connected together, and a bent portion of the frame forms a corner portion;

[0014] Transparent cover;

[0015] Heat absorbing plate core;

[0016] Base plate;

[0017] The transparent cover is arranged on the upper part of the frame, the edge of the transparent cover is located in the first mounting groove and the second mounting groove of the frame, and the bottom plate is arranged at the lower part of the frame; an installation cavity is formed between the frame, the transparent cover and the bottom plate, and the heat absorption plate core is arranged in the installation cavity;

[0018] In addition, the distance between the transparent cover and the outer edge of the frame is a, the distance between the transparent cover and the corresponding intersection of the tangents of the corner is b, and the arc angle of the corner is x;

[0019] exist hour,

[0020] exist hour,

[0021] In one embodiment of the present application, the flat plate collector further includes:

[0022] A pressure strip, wherein the outer edge of the pressure strip is provided with a first flange, and the lower edge of the first flange is provided with a first snap-fitting portion;

[0023] A covering component, wherein the outer edge of the covering component is provided with a second flange, and the lower edge of the second flange is provided with a second snap-fitting portion;

[0024] Wherein, the covering parts are respectively arranged on the corner parts of the frame, the pressure strip is arranged between two adjacent covering parts, the end of the pressure strip is located below the covering part at the corresponding end, and the covering part covers the corresponding corner part; the first snap-fitting part and the second snap-fitting part are snapped on the snap-fitting part; a first mounting groove is formed between the pressure strip and the frame, a second mounting groove is formed between the covering part and the frame, the first mounting groove is adjacent to and connected with the second mounting groove, the first mounting groove is a strip structure, and the second mounting groove is a bent structure.

[0025] In one embodiment of the present application, a positioning portion is further provided on the upper surface of the frame, a first positioning matching portion is further provided on the lower surface of the pressure strip, the first positioning matching portion is located on the inner side of the first flange, and a second positioning matching portion is further provided on the lower surface of the covering member, the second positioning matching portion is located on the inner side of the second flange;

[0026] Wherein, the first positioning matching portion and the second positioning matching portion are respectively abutted against the inner side of the positioning portion.

[0027] In one embodiment of the present application, the two ends of the covering component are respectively provided with extension parts, the contour of the lower surface of the extension part matches the contour of the upper surface of the pressure strip, and the end of the pressure strip is clamped between the extension part and the frame.

[0028] In one embodiment of the present application, a first bearing portion is disposed on the upper portion of the frame, and the first bearing portion extends laterally toward the inner side of the frame;

[0029] A second bearing portion is disposed at the lower portion of the frame, and the second bearing portion extends laterally toward the inner side of the frame;

[0030] The first installation groove is formed between the pressure strip and the first bearing portion, and the second installation groove is formed between the covering component and the first bearing portion.

[0031] In one embodiment of the present application, the edge of the first bearing portion is provided with a lower flange, and a slot is formed between the lower flange and the frame; the frame assembly for the collector also includes a connecting component, the upper part of the connecting component is stuck in the slot, the lower part of the connecting component is against the second bearing portion, and the connecting component covers the docking portion formed by the two ends of the frame.

[0032] In one embodiment of the present application, a plug-in slot with a side opening is formed in the second bearing portion, and an edge of the bottom plate is inserted into the plug-in slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0034] Figure 1 It is a structural schematic diagram of a frame assembly in an embodiment of a flat-plate collector of the present invention;

[0035] Figure 2 for Figure 1 A partial cross-sectional view of the middle frame assembly;

[0036] Figure 3 for Figure 2 A partial enlarged schematic diagram of the middle A area;

[0037] Figure 4 for Figure 1 A cross-sectional view of the middle frame;

[0038] Figure 5 for Figure 1 Schematic diagram of the structure of the middle layering strip;

[0039] Figure 6 for Figure 1 One of the structural diagrams of the middle covering component;

[0040] Figure 7 for Figure 1 The second structural diagram of the middle covering component;

[0041] Figure 8 This is a structural principle diagram of another embodiment of the flat plate collector of the present invention;

[0042] Fig. 9 for Figure 8 Schematic diagram of the local structure of a corner area of ​​a medium flat plate collector.

[0043] Description of reference numerals:

[0044] 1. Frame; 11. Corner; 12. Snap-fit ​​portion; 13. Positioning portion; 14. First bearing portion; 15. Second bearing portion; 16. Insertion slot; 17. Lower flange; 18. Mounting opening; 2. Pressing strip; 21. First flange; 22. First snap-fit ​​portion; 23. First positioning portion; 3. Covering member; 31. Second flange; 32. Second snap-fit ​​portion; 33. Second positioning portion; 34. Extension portion; 4. Connecting member; 5. Sealing rubber ring. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present invention, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0050] Embodiment 1, as Figure 1-Figure 7 As shown, in one embodiment of the present application, a frame assembly for a collector is provided, including: a frame 1, a pressure strip 2, and a covering component 3.

[0051] The frame 1 is bent to form a rectangular frame structure, the two ends of the frame 1 are connected together, the bent portion of the frame 1 forms a corner portion 11, and the frame 1 is also provided with a clamping portion 12 around it. A certain amount of material is cut off at the corresponding position of the frame 1 to meet the bending of the position to form the corner portion 11.

[0052] The outer edge of the pressure strip 2 is provided with a first flange 21, and the lower edge of the first flange 21 is provided with a first clamping fitting portion 22. The pressure strip 2 is a long strip structure as a whole, and is used to cooperate with the frame 1 to install the transparent cover of the flat panel collector.

[0053] The outer edge of the cover member 3 is provided with a second flange 31, and the lower edge of the second flange 31 is provided with a second snap-fitting portion 32. The cover member 3 is mounted on the frame 1 to shield and protect the gap formed at the bending portion of the frame 1.

[0054] Among them, the covering parts 3 are respectively arranged on the corner parts 11 of the frame 1, and the pressure strip 2 is arranged between two adjacent covering parts 3, and the end of the pressure strip 2 is located below the covering part 3 at the corresponding end, and the covering part 3 covers the corresponding corner part 11; the first snap-fitting part 22 and the second snap-fitting part 32 are snapped on the snap-fitting part 12; a first mounting groove is formed between the pressure strip 2 and the frame 1, and a second mounting groove is formed between the covering part 3 and the frame 1, the first mounting groove is adjacent to and connected with the second mounting groove, the first mounting groove is a strip structure, and the second mounting groove is a bent structure.

[0055] Specifically, the frame 1 in this embodiment is formed into an integrated frame 1 by bending a profile, and the bent portion of the frame 1 will form a corner portion 11. Since the corner portion 11 is formed by splicing the corresponding portions of the profile after bending, a splicing gap will be formed at the corner portion 11; at the same time, when the frame 1 forms the corner portion 11, a certain amount of material needs to be cut off at the corresponding portion, so that the problem of reduced structural strength will also occur at the corner portion 11.

[0056] To this end, a covering component 3 is provided at the corner portion 11 of the frame 1. On the one hand, the covering component 3 can cover the corner portion 11, thereby blocking the gap formed by the corner portion 11; on the other hand, the covering component 3 can be half-wrapped on the outside of the corner portion 11 through the second flange 31, so as to enhance the structural strength of the corner portion 11 and further improve the angle collision resistance of the frame 1.

[0057] In addition, the upper surface of the frame 1 is further shielded by the pressure strip 2. On the one hand, the pressure strip 2 can cooperate with the frame 1 to install the transparent cover. On the other hand, the first flange 21 of the pressure strip 2 is arranged on the outside of the frame 1, which can improve the side wall strength. Moreover, the outer surface of the pressure strip 2 can be smoother to more effectively optimize the overall appearance effect.

[0058] The covering component 3 and the pressure strip 2 cooperate with each other to effectively prevent the edges and corners of the flat-plate collector from collision and deformation, thereby improving the assembly efficiency and aesthetics.

[0059] By adding a covering component 3 to the corner portion 11 of the frame 1, after the covering component 3 is clamped on the frame 1, the covering component 3 is used to cover the corner portion 11 to cover the gap formed by the corner portion 11, thereby improving the overall assembly quality of the flat plate collector; and the covering component 3 and the pressure strip 2 are assembled to the frame 1 by clamping, which is convenient for quick assembly on site, thereby reducing the difficulty of assembly and improving the assembly efficiency. At the same time, the flange formed by the pressure strip 2 and the covering component 3 is located on the outside of the frame 1, and the flange structure can be used to further enhance the overall structural strength of the frame 1.

[0060] In some embodiments of the present application, a positioning portion 13 is further provided on the upper surface of the frame 1, a first positioning matching portion 23 is further provided on the lower surface of the pressure strip 2, and the first positioning matching portion 23 is located on the inner side of the first flange 21, and a second positioning matching portion 33 is further provided on the lower surface of the covering member 3, and the second positioning matching portion 33 is located on the inner side of the second flange 31;

[0061] The first positioning matching portion 23 and the second positioning matching portion 33 are respectively pressed against the inner side of the positioning portion 13 .

[0062] Specifically, in order to improve the reliability of the snap-in installation, a positioning portion 13 is provided on the upper surface of the frame 1. When the pressure strip 2 is snap-in installed, the first positioning matching portion 23 formed on the lower surface of the pressure strip 2 will abut against the positioning portion 13 to play a positioning role, and after the first snap-in matching portion 22 is snap-fitted with the snap-in portion 12, the pressure strip 2 can be firmly and reliably snap-fitted to the frame 1.

[0063] Similarly, when the covering component 3 is snapped in place, the second positioning fitting portion 33 formed on the lower surface of the covering component 3 will abut against the positioning portion 13 to play a positioning role, and after the second snap-fitting portion 32 is snap-fitted with the snap-fitting portion 12, the covering component 3 can be firmly and reliably snapped into place on the frame 1.

[0064] In some embodiments, in order to improve the assembly reliability of the molding 2 and to effectively position and install the two ends of the molding 2, extension portions 34 may be respectively provided at the two ends of the covering component 3, and the contour of the lower surface of the extension portion 34 matches the contour of the upper surface of the molding 2, and the end of the molding 2 is clamped between the extension portion 34 and the frame 1.

[0065] Specifically, during the assembly process, the bead 2 is generally first mounted on the corresponding side of the frame 1, and then the cover component 3 is mounted on the corner 11 of the frame 1, and the end of the adjacent bead 2 is shielded and limited by the cover component 3, so that the end of the bead 2 is sandwiched between the rotating component and the frame 1. The extension 34 formed at the end of the cover component 3 can effectively overlap the end of the bead 2 to shield and limit the end of the bead 2.

[0066] In another embodiment of the present application, a first bearing portion 14 is disposed on the upper portion of the frame 1 , and the first bearing portion 14 extends laterally toward the inner side of the frame 1 ;

[0067] The first mounting groove (not marked) is formed between the pressure strip 2 and the first bearing portion 14 , and the second mounting groove (not marked) is formed between the covering component 3 and the first bearing portion 14 .

[0068] Specifically, when assembling the flat plate collector, the transparent cover needs to be installed on the frame 1, and the edge of the transparent cover installed on the frame 1 is limited and fixed at the top by the pressure strip 2 and the covering component 3. In this way, the edge of the transparent cover can be located in the installation groove for limitation and fixation.

[0069] In one embodiment, in order to improve the structural strength of the first bearing portion 14 to meet the requirement of bearing and installing the transparent cover, a first reinforcing structure is provided on the surface of the first bearing portion 14 along the length direction, and the first reinforcing structure is a rib or a groove.

[0070] Specifically, ribs or grooves are provided on the surface of the first bearing portion 14 , so that the first bearing portion 14 has a higher structural strength to meet the installation requirements of the transparent cover.

[0071] In another embodiment, in order to meet the installation requirements of the bottom plate of the flat-plate collector, a second bearing portion 15 is provided at the lower portion of the frame 1 , and the second bearing portion 15 extends laterally toward the inner side of the frame 1 .

[0072] Specifically, the bottom plate of the flat plate collector is fixed to the bottom of the frame 1 and connected and fixed to the second bearing part 15 provided at the bottom of the frame 1. The second bearing part 15 is distributed around the bottom of the frame 1, and can be effectively and reliably connected to the four sides of the bottom plate.

[0073] To facilitate assembly, a laterally open insertion slot 16 is formed in the second load-bearing portion 15 .

[0074] Specifically, when the bottom plate is assembled onto the frame 1 , the edge of the bottom can be inserted into the insertion groove 16 , so that the bottom plate can be better connected to the second bearing portion 15 , thereby improving the connection reliability and connection strength between the two.

[0075] Similarly, in order to enhance the structural strength of the second bearing portion 15, a second reinforcement structure is disposed on the surface of the second bearing portion 15 along the length direction, and the second reinforcement structure is a rib or a groove.

[0076] In another embodiment of the present application, a lower flange 17 is provided at the edge of the first bearing portion 14, and a slot (not marked) is formed between the lower flange 17 and the frame 1; the frame assembly for the collector also includes a connecting component 4, the upper part of the connecting component 4 is stuck in the slot, the lower part of the connecting component 4 is against the second bearing portion 15, and the connecting component 4 covers the docking portion formed by the two ends of the frame 1.

[0077] Specifically, since the frame 1 is processed into an integrated frame structure by bending, the two end positions of the frame 1 need to be fixedly connected. To this end, a connecting component 4 is used to fix the two ends of the frame 1 together. During assembly, the upper end of the connecting component 4 is inserted into the card slot, and then the lower end of the connecting component 4 is against the second bearing portion 15. In this way, the connecting component 4 is clamped on the frame 1 and is located between the two ends of the frame 1 so that the two ends are connected together.

[0078] The longitudinal section of the connecting component 4 is a sideways U-shaped structure, so that the connecting component 4 as a whole has a certain elastic force. The connecting component 4 is clamped on the frame 1 to ensure that the two ends of the frame 1 are reliably connected together.

[0079] In another embodiment, the frame 1 may be provided with an installation opening 18, and the installation opening 18 is used to meet the installation requirements of the inlet and outlet liquid pipes, and a sealing rubber ring 5 may be provided on the installation opening 18 as required. The sealing rubber ring 5 can be sleeved on the inlet and outlet liquid pipes, and the sealing rubber ring 5 ensures the sealing of the frame 1. Because the sealing rubber ring 5 has elasticity, when the air pressure inside the flat-plate collector is relatively high, the water vapor generated in the flat-plate collector is discharged through the connection formed between the sealing rubber ring 5 and the inlet and outlet liquid pipes.

[0080] Embodiment 2, as Figure 8 As shown, an embodiment of the present application further provides a flat plate collector, comprising:

[0081] A frame assembly, wherein the frame assembly adopts the frame assembly for the collector in the first embodiment;

[0082] Transparent cover 6;

[0083] Heat absorbing plate core (not shown);

[0084] Base plate (not shown);

[0085] Among them, the transparent cover plate 6 is arranged on the upper part of the frame 1 in the frame assembly, the edge of the transparent cover plate 6 is located in the first mounting groove and the second mounting groove of the frame assembly, and the bottom plate is arranged at the lower part of the frame 1; an installation cavity is formed between the frame assembly, the transparent cover plate and the bottom plate, and the heat absorption plate core is arranged in the installation cavity.

[0086] Specifically, the flat-plate collector in one embodiment of the present application adopts the frame assembly in the above-mentioned embodiment 1, the transparent cover plate 6 and the bottom plate are assembled on the frame assembly, the heat absorption plate core is located between the transparent cover plate 6 and the bottom plate, and the inlet and outlet liquid pipes on the heat absorption plate core extend through the installation port on the frame 1 on the frame assembly to meet the requirements of connection with the flow path of the external equipment.

[0087] Embodiment three, as Figure 8-Figure 9 As shown, the present application also provides a method for polishing a transparent cover in a flat-plate collector. Since the frame 1 is made of a single profile that is bent, and the corner formed by the bent portion will have a certain curvature, in order to match the installation requirements of the corner on the frame 1, the corner of the transparent cover 6 needs to be polished according to the bending curvature of the corner.

[0088] The method for polishing the transparent cover plate in the flat plate collector comprises: bending the frame to form a rectangular frame structure, connecting the two ends of the frame together, and measuring the curvature x of the corner portion of the frame; if

[0089] Then the corners of the transparent cover are polished;

[0090] The distance between the transparent cover and the outer edge of the frame is a.

[0091] Specifically, for an aluminum profile frame with a short side of C and a long side of D, the distance between the transparent cover 1 and the outer edge of the frame 3 is a, then the length of the limit spacing b without polishing the transparent cover is When the limit spacing b is greater than 0.414x, the transparent cover does not need to be polished, and the polishing depth of the transparent cover is 0. When the limit spacing b is less than 0.414x, the relationship between the bending curvature x of the flat plate collector and the polishing depth y of the transparent cover can be derived as follows.

[0092]

[0093] For an aluminum profile frame with a short side of C and a long side of D, the radius of the bending arc is x, and the distance between the glass and the frame is a. According to the relationship between the side lengths of an equilateral right triangle, the distance from the center of the bending arc to the vertex of the frame is The distance from the glass vertex to the frame vertex is therefore Fig. 9 x1 is the distance minus the radius x of the arc, which is

[0094] When the glass does not need to be polished, the polishing depth y = 0.

[0095] When glass needs polishing Grinding depth at this time

[0096] Combining the above formula, we can calculate the relationship between the heat exchange area S (i.e. the area of ​​the glass cover) of the bent flat plate collector and the bending arc of the flat plate collector. This area is equal to the area of ​​the unpolished glass cover minus the area of ​​the polished corner. S = (C-2a)(D-2a)-y 2 .

[0097] The grinding depth of the corner of the transparent cover is obtained by calculating the curvature of the corner formed after the frame is bent and combining the size of the frame and the transparent cover. Thus, by relying on specific parameter values, the specific grinding depth requirement can be obtained according to the curvature of the corner formed after the frame of the same batch is bent and the size of the transparent cover of the same batch. This allows on-site operators to perform grinding based on the obtained grinding reference, thereby achieving precise grinding of the corners of the transparent cover and improving the overall processing quality of the flat-plate collector.

[0098] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0099] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A method for polishing a transparent cover plate in a flat plate collector, wherein the frame in the flat plate collector is bent to form a rectangular frame structure, and the bent portion of the frame forms a corner portion, characterized in that: include: After bending the frame to form a rectangular frame structure and connecting the two ends of the frame together, measure the curvature x of the corner of the frame; if Then the corners of the transparent cover are polished; The distance between the transparent cover and the outer edge of the frame is a.

2. The method for polishing the transparent cover plate in the flat-plate collector according to claim 1, characterized in that: The grinding depth of the corner of the transparent cover plate is y=0.414x-1.414a.

3. The method for polishing the transparent cover plate in the flat-plate collector according to claim 1, characterized in that: If in There is no need to grind the corners of the transparent cover.

4. A flat plate collector, characterized in that: include: A frame, wherein the frame is bent to form a rectangular frame structure, two ends of the frame are connected together, and a bent portion of the frame forms a corner portion; Transparent cover; Heat absorbing plate core; Base plate; The transparent cover is arranged on the upper part of the frame, the edge of the transparent cover is located in the first mounting groove and the second mounting groove of the frame, and the bottom plate is arranged at the lower part of the frame; an installation cavity is formed between the frame, the transparent cover and the bottom plate, and the heat absorption plate core is arranged in the installation cavity; In addition, the distance between the transparent cover and the outer edge of the frame is a, the distance between the transparent cover and the corresponding intersection of the tangents of the corner is b, and the arc angle of the corner is x; exist hour, exist hour, 5. The flat plate collector according to claim 4, characterized in that: The flat plate collector also includes: A pressure strip, wherein the outer edge of the pressure strip is provided with a first flange, and the lower edge of the first flange is provided with a first snap-fitting portion; A covering component, wherein the outer edge of the covering component is provided with a second flange, and the lower edge of the second flange is provided with a second snap-fitting portion; Wherein, the covering parts are respectively arranged on the corner parts of the frame, the pressure strip is arranged between two adjacent covering parts, the end of the pressure strip is located below the covering part at the corresponding end, and the covering part covers the corresponding corner part; the first snap-fitting part and the second snap-fitting part are snapped on the snap-fitting part; a first mounting groove is formed between the pressure strip and the frame, a second mounting groove is formed between the covering part and the frame, the first mounting groove is adjacent to and connected with the second mounting groove, the first mounting groove is a strip structure, and the second mounting groove is a bent structure.

6. The flat plate collector according to claim 5, characterized in that: The upper surface of the frame is further provided with a positioning portion, the lower surface of the pressure strip is further provided with a first positioning matching portion, the first positioning matching portion is located on the inner side of the first flange, and the lower surface of the covering component is further provided with a second positioning matching portion, the second positioning matching portion is located on the inner side of the second flange; Wherein, the first positioning matching portion and the second positioning matching portion are respectively abutted against the inner side of the positioning portion.

7. The flat plate collector according to claim 5, characterized in that: Extensions are respectively provided at both ends of the covering component, the contour of the lower surface of the extension matches the contour of the upper surface of the pressure strip, and the end of the pressure strip is sandwiched between the extension and the frame.

8. The flat plate collector according to claim 5, characterized in that: A first bearing portion is disposed on the upper portion of the frame, and the first bearing portion extends laterally toward the inner side of the frame; A second bearing portion is disposed at the lower portion of the frame, and the second bearing portion extends laterally toward the inner side of the frame; The first installation groove is formed between the pressure strip and the first bearing portion, and the second installation groove is formed between the covering component and the first bearing portion.

9. The flat plate collector according to claim 8, characterized in that: The edge of the first bearing part is provided with a lower flange, and a slot is formed between the lower flange and the frame; the frame assembly for the collector also includes a connecting component, the upper part of the connecting component is stuck in the slot, the lower part of the connecting component rests on the second bearing part, and the connecting component covers the docking part formed by the two ends of the frame.

10. The flat plate collector according to claim 8, characterized in that: A laterally open inserting slot is formed in the second bearing portion, and the edge of the bottom plate is inserted into the inserting slot.

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