Support and carrying frame structure for chain rod type solar cell sintering furnace

Abstract

The utility model relates to the field of solar cell manufacturing devices, in particular to a support and carrying frame structure for a chain rod type solar cell sintering furnace. The bracket forms a carrying surface for carrying a solar cell; a supporting piece is detachably installed at the abutting position of any support and the solar cell. According to the utility model, the support is provided with the high-temperature-resistant and wear-resistant support member, the support is replaced to be contacted with the solar cell, the problems of wear, corrosion, pollution and uneven local temperature of the solar cell caused by direct contact of the support and the solar cell are solved, and the support member is convenient to disassemble, replace and maintain.

Description

Technical Field

[0001] The utility model relates to the field of solar cell manufacturing devices, in particular to a support and a mounting frame structure for a chain-rod type solar cell sintering furnace. Background Art

[0002] Solar cells refer to semiconductor components that can effectively absorb solar energy and convert it into electrical energy. During the manufacturing process, sintering operations are required. In a chain-rod sintering furnace, solar cells are placed on a carrier with a support structure. The carrier is driven by driving devices on both sides to drive the solar cells to run in a sintering furnace with a heating device, thereby achieving sintering of the solar cells.

[0003] In the prior art, the mounting frame generally includes a bracket and a support, which are usually made of metal materials such as stainless steel. The support is generally fixed to the bracket by welding or the like, which has the following problems:

[0004] 1. The metal bracket is in direct contact with the edge of the solar cell. Under the high temperature environment in the furnace and the vibration and friction caused by the long-term contact between the bracket and the solar cell, the metal bracket is easily corroded by the solar cell itself and the slurry and other chemicals attached to the solar cell. The corroded bracket will also pollute the solar cell.

[0005] 2. Since the solar cell is partially mounted on a metal bracket, and the thermal conductivity of the metal bracket is relatively high, the heat conduction of the metal bracket will cause uneven temperature at the contact point between the solar cell and the bracket, affecting the uniformity of the solar cell sintering;

[0006] 3. Because the metal bracket is generally welded to the bracket, even if it is worn, contaminated or damaged, it cannot be replaced alone and can only be replaced together with the bracket;

[0007] 4. When welding the metal bracket and the bracket, it is not only time-consuming and labor-intensive, and the processing efficiency is low, but the welding process will cause the bracket to deform, affecting the stability of solar cell transmission. Utility Model Content

[0008] The utility model aims to provide a support and a mounting frame structure for a chain-rod type solar cell sintering furnace, so as to solve the problem in the prior art that the support is easily worn, corroded or even damaged due to long-term contact with solar cells and is difficult to replace.

[0009] The technical solution of the utility model is: a support and a mounting frame structure for a chain-rod type solar cell sintering furnace, wherein the support forms a mounting surface for mounting solar cells;

[0010] A support piece is detachably mounted at the abutment point between any of the brackets and the solar cell.

[0011] Preferably, the surface or edge of the bracket close to the solar cell is set as a supporting portion, and the supporting portion is horizontal or inclined.

[0012] Preferably, a groove is provided on the bracket to form a positioning component, and the length direction of the groove is parallel to the support part;

[0013] The support member is assembled at the support portion, and a limiting member for stopping the support member corresponds to a side of the trough body away from the root.

[0014] Preferably, the positioning component is constructed as a sleeve rod and extends to a side of the trough body away from the root;

[0015] The support portion is formed on the sleeve rod, and the support member is a sleeve sleeved on the sleeve rod, and the sleeve is configured as a hollow cylindrical tubular structure.

[0016] Preferably, the limiting member is constructed as a first limiting portion; after the first limiting portion is deformed under the action of external force, a gap is formed between the first limiting portion and the sleeve rod for the sleeve to be sleeved onto the sleeve rod, and after the sleeve is sleeved, the first limiting portion is reset by applying reverse force.

[0017] Preferably, the limiting member is formed by bending the end of the sleeve rod and is constructed as a second limiting portion; the second limiting portion is bent to stop the sleeve after the sleeve is sleeved onto the sleeve rod.

[0018] Preferably, the positioning member is constructed as a short rod and is located at one side of the root of the trough body;

[0019] The support portion is formed on the boundary formed by the slot body and the bracket, and the support member adopts a clamping strip, which has an open clamping portion so that the cross-section of the clamping strip perpendicular to the length direction is set as a C-shaped structure; the clamping strip is set in the slot body, and the clamping portion is clamped with the support portion.

[0020] Preferably, the limiting member is constructed as a third limiting portion; after the third limiting portion is deformed under the action of external force, it cooperates with the short rod to complete the limiting of the clamping strip.

[0021] A carrier structure for a chain-rod type solar cell sintering furnace also includes a bracket. The bracket is laid in multiple numbers perpendicular to its length direction, and at least one pair of brackets is fixed on the bracket.

[0022] Preferably, the bracket is constructed as one piece with the support, and at least a portion of the structure of the support is formed by bending.

[0023] Preferably, a plurality of through holes are provided on the end surface of the bracket.

[0024] Preferably, at least two pairs of the brackets are provided on the bracket;

[0025] The plurality of pairs of brackets have overlapping symmetry axes, so that the upper support portions of adjacent brackets are in a stepped structure, and the vertical section connecting the upper support portion of any bracket and the upper limit member of the adjacent bracket is constructed as a limit end;

[0026] Alternatively, a plurality of pairs of the brackets have non-overlapping axes of symmetry, and the brackets are distributed on the bracket in sequence.

[0027] Preferably, adjacent support portions are arranged in parallel or non-parallel.

[0028] Compared with the prior art, the advantages of the utility model are:

[0029] (1) The utility model has a support member detachably mounted on the bracket. The support member has the characteristics of high temperature resistance, wear resistance and corrosion resistance, and can replace the bracket itself to contact the solar cell, so that the bracket is not easily corroded by the solar cell itself and chemical substances such as slurry attached thereto, thereby effectively avoiding the pollution of the solar cell caused by the corrosion of the bracket.

[0030] (2) The support member of the utility model is made of a material that is resistant to high temperature, wear and corrosion, and is generally made of ceramics, glass or quartz glass. The support member of the utility model has a thermal conductivity that is much lower than that of a metal bracket. When the solar cell contacts the support member, the contact portion will not cause local temperature rise due to the support member conducting heat too quickly, thereby ensuring the uniformity of the sintering of the solar cell.

[0031] (3) The support member has a variety of connection methods with the bracket, and these connection methods are all detachable, making subsequent replacement of the support member more convenient and quick.

[0032] (4) The mounting frame includes a bracket and a support, which are integrally formed by cutting or stamping a sheet metal and bending. At least part of the structure including the bracket is formed by bending, thereby eliminating the welding step, making the processing of the mounting frame more convenient, and effectively solving the welding deformation problem of the mounting frame, thereby ensuring the smooth transmission of the solar cells.

[0033] (5) The bracket is provided with through holes, which not only reduces the weight of the bracket, but also reduces the cross-sectional area of ​​the bracket, resulting in a lower heat conduction rate. In addition, the through holes on the horizontal end surface allow the heat radiation generated by the heating device below to pass through the bracket and directly act on the solar cells loaded thereon, thereby improving the uniformity of sintering. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0035] Figure 1This is a structural diagram of the support in the first embodiment of the utility model;

[0036] Figure 2 This is a schematic diagram of the installation of the sleeve in the first embodiment of the utility model;

[0037] Figure 3 This is a schematic diagram of the installation of the sleeve in the first embodiment of the utility model;

[0038] Figure 4 This is a structural diagram of the second limiting portion in the second embodiment of the utility model;

[0039] Figure 5 This is a structural diagram of the support in the third embodiment of the utility model;

[0040] Figure 6 This is a structural diagram of the card strip in the third embodiment of the utility model;

[0041] Figure 7 This is a schematic diagram of the installation of the card strip in the third embodiment of the present utility model;

[0042] Figure 8 This is a structural diagram of the support in the third embodiment of the utility model;

[0043] Fig. 9 This is a C-type structural diagram of the bracket described in the utility model;

[0044] Fig.10 This is the n-type structural diagram of the bracket described in the utility model;

[0045] Fig.11 This is a U-shaped structural diagram of the bracket described in the utility model;

[0046] Fig.12 This is an L-shaped structural diagram of the bracket described in the utility model;

[0047] Fig.13 This is a structural diagram of the mounting frame in the fourth embodiment of the present utility model;

[0048] Fig.14 This is a structural diagram of the mounting frame in the fifth embodiment of the present utility model.

[0049] in:

[0050] 1. bracket, 11. supporting portion, 12. limiting end, 13. notch;

[0051] 2. trough body, 21. root;

[0052] 3. Positioning component, 3a. sleeve rod, 3b. short rod;

[0053] 4. Limiting member, 4a. First limiting portion, 4b. Second limiting portion, 4c. Third limiting portion;

[0054] 5. Support member, 5a. Sleeve, 5b. Card strip;

[0055] 6. Bracket;

[0056] 7. Through hole;

[0057] 8. Snap-fitting part. DETAILED DESCRIPTION

[0058] The following is a further detailed description of the present invention in conjunction with specific embodiments:

[0059] In the first embodiment of the present utility model, a chain rod type solar cell sintering furnace mounting frame, such as Fig. 9 As shown, it includes a bracket 6 made of stainless steel material, and a plurality of brackets 6 are laid in a first direction horizontally and perpendicular to their own length, and heating devices for sintering solar cells are respectively arranged above and below the brackets. A bracket 1 is arranged above the bracket 6, and the brackets 1 are arranged on the bracket 6 in pairs, and there are at least one pair. The bracket 1 carries solar cells, and the two sides of the bracket 6 are connected to a transmission device such as a transmission chain, and run along the first direction under the drive of the transmission chain to perform sintering operations on the solar cells thereon.

[0060] The bracket 6 is made of sheet metal material, and its cross section can be straight. In order to enhance its stability, Figure 9-12 As shown, it can also be bent into a C-shape, an N-shape, a U-shape or an L-shape. In other embodiments, it can also be constructed into various shapes such as a U-shape.

[0061] In order to prevent the heat in the sintering furnace from being conducted to both sides along the bracket 6 and then dissipated outside the sintering furnace, a plurality of through holes 7 are provided along the length direction of the bracket 6. The through holes 7 not only reduce the weight of the bracket 6, but also reduce the cross-sectional area of ​​the bracket 6, resulting in a decrease in the heat conduction speed. In addition, the through holes 7 on the horizontal end surface also allow the heat radiation generated by the lower heating device to pass through the bracket 6 and directly act on the solar cells loaded thereon, thereby improving the uniformity of sintering.

[0062] In one embodiment, the bracket 6 is integrally formed with symmetrically arranged brackets 1, and the solar cell is carried on a pair of brackets 1. At least part of the structure including the bracket 1 is formed by bending, that is, the root of the bracket 3 can be directly bent relative to the frame body 1, specifically Fig. 9 , Fig.10 As shown, or, the bracket 3 is bent together with part of the frame 1, specifically Fig.11 , Fig.12As shown. The bracket 1 can be set as a rectangular structure, and in this embodiment, it is a triangular structure. The part of the bracket 1 that abuts against the solar cell can be a face or an edge, and the face or edge is set as the support part 11. When the bracket 1 is set as a rectangular structure, the support part 11 is set horizontally; when the bracket 1 is set as a triangular structure, the support parts 11 on a pair of brackets 1 are tilted inward to form a V-shaped structure.

[0063] In other embodiments, the bracket 1 may also be designed separately from the support 6. In this case, the bracket 1 may be fixedly connected to the support 6 by welding, rivet fixing, bolt fixing, etc.

[0064] like Figure 1 - Figure 8 As shown, in order to improve the service life of the support part 11, a support member 5 made of a material with high temperature resistance, wear resistance and corrosion resistance such as ceramic, glass, quartz glass, etc. is provided on the support part 11 to replace the support part 11 in direct contact with the solar cell.

[0065] like Figure 2 As shown, in order to install the support member 5, a groove body 2 parallel to the support part 11 is opened on the bracket 1, so that the part of the groove body 2 adjacent to the bracket 1 forms a positioning component 3, and the side of the groove body 2 away from the root 21 corresponds to the support member 5 to form a limiting component 4, which is used to stop the support member 5 and prevent the support member 5 from falling off.

[0066] Specifically, Figure 1 - Figure 3 As shown, in this embodiment, the positioning component 3 is constructed as a sleeve rod 3a, and the sleeve rod 3a extends to the side of the trough body 2 away from the root 21. The support portion 11 adopts a sleeve 5a and is set as a hollow cylindrical tubular structure, so that the sleeve rod 3a can pass through the sleeve 5a. In this embodiment, the limiter 4 is constructed as a first limiter 4a, and the first limiter 4a is set as a curved strip structure, having a head corresponding to the sleeve rod 3a and a tail at the other end. The head can be bent under the action of an external force, so that a gap 13 is generated between the head and the sleeve rod 3a, and the sleeve 5a can be mounted on the sleeve rod 3a through the gap 13. Subsequently, the head is reset by applying a reverse force to the head, so that the gap 13 is re-closed, thereby stopping the sleeve 5a.

[0067] In the second embodiment of the present invention, Figure 4 As shown, the stopper 4 is formed by bending the end of the sleeve rod 3a in the extension direction, and this part is configured as a second stopper 4b. After the sleeve 5a is inserted into the sleeve rod 3a, the end of the sleeve rod 3a in the extension direction is bent inward and hooked on one end of the sleeve 5a, thereby stopping the sleeve 5a.

[0068] In the third embodiment of the present invention, Figure 5As shown, the positioning member 3 is constructed as a short rod 3b, which is arranged at one side of the root 21 of the slot body 2 and has a shorter length. The support portion 11 is formed on the boundary between the slot body 2 and the bracket 1. At this time, as shown in FIG. Figure 6 As shown, the support member 5 adopts a clamping strip 5b, and the clamping strip 5b has an opening-arranged clamping portion 8, so that the cross section of the clamping strip 5b perpendicular to the length direction is arranged in a C-shaped structure. Figure 7 and Figure 8 As shown, the clamping strip 5b is disposed in the slot body 2, the clamping portion 8 is clamped with the supporting portion 11, and one end of the clamping strip 5b close to the root 21 of the slot body 2 is stopped by the short rod 3b.

[0069] The limiting member 4 in this embodiment is constructed as a third limiting portion 4c. The third limiting portion 4c has a similar structure to the first limiting portion 4a. It deforms under the action of external force to press the end of the clamping strip 5b away from the root 21 of the groove body 2, so that the two ends of the clamping strip 5b are fixed respectively under the action of the short rod 3b and the third limiting portion 4c.

[0070] In the fourth embodiment of the present invention, Fig.13 As shown, the brackets 1 on the bracket 6 can be arranged in multiple pairs with the same axis of symmetry, that is, multiple pairs of brackets 1 have overlapping axes of symmetry. At this time, the support portions 11 on adjacent brackets 1 are arranged in a stepped manner, and the support portions 11 on the brackets 1 located on the outside have a higher height. The vertical section connecting the support portion 11 on any bracket 1 and the upper limit member 4 on the adjacent bracket 1 is constructed as a limit end 12, which can prevent the position of the solar cell on the bracket 1 from being greatly offset.

[0071] The support parts 11 of adjacent brackets 1 may be arranged in parallel or non-parallel according to the specifications of the solar cells.

[0072] In a fifth embodiment of the present invention, Fig.14 As shown, the brackets 1 on the bracket 6 can be arranged in multiple pairs with non-overlapping symmetry axes, and the brackets 1 are distributed on the bracket 6 in sequence. In this case, during application, each pair of brackets 1 can carry solar cells.

[0073] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model.

Claims

1. A chain rod type solar cell sintering furnace support, characterized in that: The bracket (1) forms a mounting surface for mounting solar cells; A support member (5) is detachably mounted at the abutment point between any of the brackets (1) and the solar cell.

2. A chain-rod type solar cell sintering furnace support according to claim 1, characterized in that: The surface or edge of the support (1) close to the solar cell is set as a support part (11), and the support part (11) is horizontal or inclined.

3. A support for a chain-rod type solar cell sintering furnace according to claim 2, characterized in that: The bracket (1) is provided with a groove body (2) and a positioning component (3), and the length direction of the groove body (2) is parallel to the support part (11); The support member (5) is assembled on the support portion (11), and a stop member (4) for stopping the support member (5) is provided on a side of the trough body (2) away from the root portion (21).

4. The support for a chain-rod type solar cell sintering furnace according to claim 3, characterized in that: The positioning component (3) is constructed as a sleeve rod (3a) and extends to a side of the trough body (2) away from the root (21); The support portion (11) is formed on the sleeve rod (3a), and the support member (5) is a sleeve tube (5a) sleeved on the sleeve rod (3a), and the sleeve tube (5a) is configured as a hollow cylindrical tubular structure.

5. The support for a chain-rod type solar cell sintering furnace according to claim 4, characterized in that: The limiting member (4) is constructed as a first limiting portion (4a); after the first limiting portion (4a) is deformed under the action of an external force, a notch (13) is formed between the first limiting portion (4a) and the sleeve rod (3a) for the sleeve tube (5a) to be sleeved onto the sleeve rod (3a), and after the sleeve is sleeved, the first limiting portion (4a) is reset by applying a reverse force.

6. The support for a chain-rod type solar cell sintering furnace according to claim 4, characterized in that: The limiting member (4) is formed by bending the end of the sleeve rod (3a) and is configured as a second limiting portion (4b); after the sleeve (5a) is sleeved onto the sleeve rod (3a), the second limiting portion (4b) is bent to stop the sleeve (5a).

7. The support for a chain-rod type solar cell sintering furnace according to claim 3, characterized in that: The positioning component (3) is constructed as a short rod (3b) and is located on one side of the root (21) of the trough body (2); The support portion (11) is formed on a boundary formed by the groove body (2) and the bracket (1), and the support member (5) adopts a clamping strip (5b), and the clamping strip (5b) has an opening-arranged clamping portion (8), so that the cross section of the clamping strip (5b) perpendicular to the length direction is arranged as a C-shaped structure; the clamping strip (5b) is arranged in the groove body (2), and the clamping portion (8) is clamped with the support portion (11).

8. The support for a chain-rod type solar cell sintering furnace according to claim 7, characterized in that: The limiting member (4) is constructed as a third limiting portion (4c); after the third limiting portion (4c) is deformed under the action of an external force, it cooperates with the short rod (3b) to complete the limiting of the clamping strip (5b).

9. A carrier structure for a chain-rod type solar cell sintering furnace, comprising a bracket (1) as claimed in claim 5, 6 or 8, characterized in that: It also comprises a bracket (6), wherein the bracket (6) is laid in a plurality perpendicular to its length direction, and at least one pair of the brackets (1) is fixed on the bracket (6).

10. The carrier structure for a chain-rod type solar cell sintering furnace according to claim 9, characterized in that: The bracket (6) and the support (1) are constructed as one body, and at least a portion of the structure of the support (1) is formed by bending.

11. The carrier structure for a chain-rod type solar cell sintering furnace according to claim 9, characterized in that: A plurality of through holes (7) are provided on the end surface of the bracket (6).

12. A carrier structure for a chain-rod type solar cell sintering furnace according to claim 10 or 11, characterized in that: At least two pairs of the brackets (1) are arranged on the bracket (6); The plurality of pairs of brackets (1) have overlapping axes of symmetry, the upper support portions (11) of adjacent brackets (1) are in a stepped structure, and the vertical section connecting the upper support portion (11) of any bracket (1) and the upper limit member (4) of the adjacent bracket (1) is constructed as a limit end (12); Alternatively, a plurality of pairs of the supports (1) have non-overlapping axes of symmetry, and the supports (1) are distributed sequentially on the bracket (6).

13. The carrier structure for a chain-rod type solar cell sintering furnace according to claim 12, characterized in that: The adjacent support parts (11) are arranged in parallel or non-parallel.

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