A baking furnace for battery piece

Abstract

The utility model discloses a kind of baking furnace for battery piece, comprising: furnace body, the opposite sides of furnace body are equipped with inlet and outlet, furnace body is equipped with the feeding transmission component of being threaded in inlet and the discharging transmission component of being threaded in outlet, the inside of furnace body is equipped with heating component and the rotary conveying mechanism between feeding transmission component and discharging transmission component, rotary conveying mechanism is rotationally arranged along up-down direction, rotary conveying mechanism is spaced apart and is provided with multiple material receiving frame assemblies along its extension direction, material receiving frame assembly includes two oppositely arranged material receiving strips, material receiving strip has obliquely downward first supporting surface and obliquely upward second supporting surface, two first supporting surfaces of two material receiving strips or two second supporting surfaces commonly support the two side edges of battery piece;It can be fully baked ink in the case where avoiding touching the ink of battery piece surface, it is favorable to keep the integrity of ink to guarantee the yield of battery piece.

Description

Technical Field

[0001] This utility model relates to the field of baking equipment technology, and in particular to a baking oven for battery cells. Background Technology

[0002] Currently, due to cost considerations, solar cells mainly use copper interconnect technology to process copper grid lines. The conventional processing method of copper interconnect technology is as follows: after coating the entire front and back of the cell with ink and baking, grid line grooves are formed by exposure and development. Then, metallic copper is deposited in the grooves using an electrochemical process. Finally, the ink is removed to form the copper grid lines of the cell.

[0003] In the process of baking the ink on the entire surface of the solar cell, if a traditional baking oven is used to bake and transport the solar cell, the ink on the surface of the solar cell will come into direct contact with the conveyor chain, or the ink on the surface of the solar cell will come into surface contact with the carrier, which will damage the integrity of the ink and make it unsuitable for baking the ink on solar cells, thus affecting the yield of solar cells. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the purpose of this invention is to provide a baking oven for solar cells that can thoroughly bake the ink on the surface of the solar cells without touching it, thus helping to maintain the integrity of the ink and ensuring the yield rate of the solar cells.

[0005] A baking oven for battery cells according to an embodiment of the present invention includes: an oven body, wherein an inlet and an outlet are provided on opposite sides of the oven body, the oven body is provided with an inlet conveying assembly passing through the inlet and an outlet conveying assembly passing through the outlet, the oven body is provided with a heating assembly and a rotary conveying mechanism located between the inlet conveying assembly and the outlet conveying assembly, the rotary conveying mechanism is arranged to rotate in the up-down direction, and a plurality of receiving frame assemblies are arranged at intervals along the extension direction of the rotary conveying mechanism, each receiving frame assembly including two receiving strips arranged opposite to each other, each receiving strip having a first supporting surface inclined downward and a second supporting surface inclined upward, the two first supporting surfaces or the two second supporting surfaces of the two receiving strips jointly supporting the two side edges of the battery cell.

[0006] A baking oven for battery cells according to an embodiment of the present invention has at least the following beneficial effects:

[0007] In the above-described baking oven, a battery cell is driven by a feeding conveyor assembly into a receiving frame assembly of a rotary conveyor mechanism. After the rotary conveyor mechanism rotates a certain angle, the feeding conveyor assembly sends another battery cell into another receiving frame assembly. As the rotary conveyor mechanism rotates the battery cell 180°, the battery cell leaves the receiving frame assembly and is sent out of the oven by the discharge conveyor assembly. During this process, the two first support surfaces or the two second support surfaces jointly support the two sides of the battery cell, which can bake the ink thoroughly without touching the ink on the surface of the battery cell, thus helping to maintain the integrity of the ink and ensuring the yield of the battery cell.

[0008] In some embodiments of this utility model, a horizontally oriented V-shaped opening or trapezoidal opening is formed between the first supporting surface and the second supporting surface on the receiving strip, and the two V-shaped openings of the two receiving strips are arranged face to face, or the two trapezoidal openings of the two receiving strips are arranged face to face.

[0009] In some embodiments of this utility model, the included angle between the first supporting surface and the second supporting surface on the receiving strip is between 40° and 60°.

[0010] In some embodiments of this utility model, both the first supporting surface and the second supporting surface are provided with a plurality of notches at intervals along the length direction of the receiving strip, and the notches correspond to the side edges of the battery cell.

[0011] In some embodiments of this utility model, the rotary conveying mechanism includes at least two sets of chain drive assemblies arranged at intervals. The chain drive assembly includes a driving sprocket and a driven sprocket arranged vertically, and a chain connecting the driving sprocket and the driven sprocket. One end of two oppositely arranged receiving bars is fixedly installed on the two chains respectively. The end of the receiving bar near the chain is provided with a limiting part for abutting against the end face of the battery cell.

[0012] In some embodiments of this utility model, the chain is formed by connecting multiple chain links in sequence to form a circle. The side of each chain link has a protruding side lug. The side lug has a first mounting hole. The receiving strip has a mounting plate near one end of the chain. The mounting plate has a second mounting hole opposite to the first mounting hole. A part of the mounting plate constitutes the limiting part. Fastening bolts pass through the second mounting hole and the first mounting hole to connect the mounting plate and the side lug.

[0013] In some embodiments of this utility model, the mounting plate is a long strip that is horizontally orthogonal to the transmission direction of the battery cell. A receiving strip is provided at both ends of the mounting plate. The openings of the two receiving strips on the same mounting plate are arranged opposite to each other. Multiple support strips arranged at intervals along the length direction of the receiving strips are connected between the two receiving strips on the same mounting plate.

[0014] In some embodiments of this utility model, a second mounting hole is provided at each end of the mounting plate, and the two chains are respectively connected to the two ends of the mounting plate.

[0015] In some embodiments of this utility model, the feed inlet and the discharge outlet are both located at the bottom of the furnace body, and the heating components are distributed on the two opposing inner sidewalls of the furnace body facing the rotary conveying mechanism.

[0016] In some embodiments of this utility model, two feeding conveying components are arranged side by side through the feeding port, two discharging conveying components are arranged side by side through the discharging port, and two rotary conveying mechanisms are respectively arranged between the corresponding feeding conveying components and the discharging conveying components.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the appearance of one embodiment of the baking oven for battery cells according to the present invention;

[0020] Figure 2 for Figure 1 Internal structure diagram of the embodiment;

[0021] Figure 3 A schematic diagram of one embodiment of the receiving frame assembly;

[0022] Figure 4 This is a structural schematic diagram of another embodiment of the receiving frame assembly.

[0023] Figure label:

[0024] Battery cell 10; furnace body 100; feed inlet 110; discharge outlet 120; feed conveying assembly 200; discharge conveying assembly 300; rotary conveyor mechanism 400; drive sprocket 410; driven sprocket 420; chain 430; chain link 431; side lug 432; first mounting hole 433; receiving frame assembly 500; receiving strip 510; first support surface 511; second support surface 512; notch 513; mounting plate 520; second mounting hole 521; support strip 530; heating assembly 600. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as the terms "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] See Figures 1 to 3This utility model discloses a baking oven for battery cells, comprising: an oven body 100, wherein an inlet 110 and an outlet 120 are provided on opposite sides of the oven body 100; an inlet conveying assembly 200 passing through the inlet 110 and an outlet conveying assembly 300 passing through the outlet 120; and a heating assembly 600 and a rotary conveying mechanism 400 located between the inlet conveying assembly 200 and the outlet conveying assembly 300, respectively, are provided inside the oven body 100. The rotary conveyor 400 is arranged to rotate in the vertical direction. The rotary conveyor 400 is provided with a plurality of receiving frame assemblies 500 at intervals along its extension direction. The receiving frame assembly 500 includes two receiving bars 510 arranged opposite each other. The receiving bar 510 has a first supporting surface 511 inclined downward and a second supporting surface 512 inclined upward. The two first supporting surfaces 511 or the two second supporting surfaces 512 of the two receiving bars 510 jointly support the two sides of the battery cell 10.

[0030] In the above-described baking oven, a battery cell 10 is driven by the feeding conveyor assembly 200 into a receiving frame assembly 500 of the rotary conveyor mechanism 400. After the rotary conveyor mechanism 400 rotates a certain angle, the feeding conveyor assembly 200 again sends another battery cell 10 into another receiving frame assembly 500. As the rotary conveyor mechanism 400 rotates the battery cell 10 180°, the battery cell 10 leaves the receiving frame assembly 500 and is sent out of the oven body 100 by the discharge conveyor assembly 300. During this process, the two first supporting surfaces 511 or the two second supporting surfaces 512 jointly support the two sides of the battery cell 10, which can bake the ink comprehensively without touching the ink on the surface of the battery cell 10, which helps to maintain the integrity of the ink and ensure the yield of the battery cell 10.

[0031] See Figure 3In some embodiments of this utility model, a horizontally oriented V-shaped opening or trapezoidal opening is formed between the first supporting surface 511 and the second supporting surface 512 on the receiving strip 510, and the two V-shaped openings of the two receiving strips 510 are arranged face to face, or the two trapezoidal openings of the two receiving strips 510 are arranged face to face. In this embodiment, a trapezoidal opening is formed between the first supporting surface 511 and the second supporting surface 512. After the battery cell 10 enters through the two trapezoidal openings, the two side edges of the battery cell 10 abut against the two downward-sloping first supporting surfaces 511, forming line contact. When the rotary conveying mechanism 400 drives the battery cell 10 to rotate to its top, the battery cell 10 flips over, and the two side edges of the battery cell 10 abut against the two second supporting surfaces 512. It should be noted that the second supporting surfaces 512 change from the original upward-sloping state to the downward-sloping state. Then, when the battery cell 10 rotates to be flush with the discharge conveying assembly 300, it can be carried out of the receiving frame assembly 500.

[0032] It should be noted that the feeding conveyor assembly 200 and the discharging conveyor assembly 300 generally use conveyor belts. When entering and leaving the oven, the ink is in a relatively dry state. Only when it is baked at high temperature on the rotary conveyor mechanism 400 will it partially melt. During this process, the battery cell 10 and the receiving frame assembly 500 maintain line contact, which will not cause large-scale damage to the ink.

[0033] In some embodiments of this utility model, in order to achieve good support and ensure that the battery cell 10 maintains line contact with both the first support surface 511 and the second support surface 512, the included angle between the first support surface 511 and the second support surface 512 on the receiving strip 510 is between 40° and 60°, the angle of inclination of the first support surface 511 downward relative to the horizontal is between 20° and 30°, and the angle of inclination of the second support surface 512 upward relative to the horizontal is between 20° and 30°.

[0034] See Figure 3 In some embodiments of this utility model, in order to further reduce the contact area between the battery cell 10 and the first support surface 511 and the battery cell 10 and the second support surface 512, the first support surface 511 and the second support surface 512 are provided with a plurality of notches 513 at intervals along the length direction of the receiving strip 510, and the notches 513 correspond to the side edges of the battery cell 10.

[0035] See Figure 2 and Figure 3In some embodiments of this utility model, the rotary conveying mechanism 400 includes at least two sets of spaced-apart chain drive assemblies. Each chain drive assembly includes a driving sprocket 410 and a driven sprocket 420 arranged vertically, and a chain 430 connecting the driving sprocket 410 and the driven sprocket 420. One end of two oppositely arranged receiving bars 510 is fixedly mounted on the two chains 430. The receiving bar 510 has a limiting portion near the chain 430 for abutting against the end face of the battery cell 10. It is understood that the chain drive assembly has a strong load-bearing capacity, and the synchronous movement of the two receiving bars 510 driven by the two chains 430 helps improve the stability and reliability of the rotary motion. Of course, in other embodiments, the rotary conveying mechanism 400 can also be replaced by a belt drive.

[0036] See Figures 2 to 4 In some embodiments of this utility model, the chain 430 is formed by connecting multiple chain links 431 in sequence to form a circle. The side of each chain link 431 is provided with a side lug 432. The side lug 432 is provided with a first mounting hole 433. The receiving strip 510 is provided with a mounting plate 520 near one end of the chain 430. The mounting plate 520 is provided with a second mounting hole 521 opposite to the first mounting hole 433. A part of the mounting plate 520 constitutes the limiting part. Fastening bolts are provided through the second mounting hole 521 and the first mounting hole 433 to connect the mounting plate 520 and the side lug 432. Understandably, the above structure facilitates the installation of the receiving strip 510 on the chain 430 and also facilitates the individual replacement or repair of the receiving strip 510. In addition, when the chain 430 drives the receiving frame assembly 500 to rotate to the top, the end face of the battery cell 10 can abut against the limiting part of the mounting plate 520 to prevent the battery cell 10 from falling off or completely detaching from the chain 430.

[0037] See Figure 4 In some embodiments of this utility model, the mounting plate 520 is a long strip horizontally orthogonal to the transmission direction of the battery cell 10. Each end of the mounting plate 520 has a receiving strip 510. The openings of the two receiving strips 510 on the same mounting plate 520 are arranged opposite to each other. Multiple support strips 530, spaced apart along the length of the receiving strips 510, connect the two receiving strips 510 on the same mounting plate 520. It is conceivable that the arrangement of multiple support strips 530 ensures the accuracy of the relative position between the two receiving strips 510 on the same mounting plate 520. Each mounting plate 520 is equipped with two receiving strips 510 with openings facing opposite to each other. By arranging multiple mounting plates 520 at intervals, several receiving frame assemblies 500 can be formed, increasing the degree of freedom of expansion.

[0038] In some embodiments of this utility model, in order to further improve the stability of the transmission, a second mounting hole 521 is provided at each end of the mounting plate 520, and the two chains 430 are respectively connected to the two ends of the mounting plate 520.

[0039] See Figure 1 and Figure 2 In some embodiments of this utility model, the feed inlet 110 and the discharge outlet 120 are both located at the bottom of the furnace body 100, and the heating components 600 are arranged on the two opposing inner sidewalls of the furnace body 100 facing the rotary conveyor mechanism 400. It is understood that the area of ​​the rotary conveyor mechanism 400 that moves from bottom to top is close to the feed conveyor component 200, and the area of ​​the rotary conveyor mechanism 400 that moves from top to bottom is close to the discharge conveyor component 300. This arrangement of the heating components 600 helps to ensure that the ink on the battery cell 10 is heated and baked evenly.

[0040] See Figure 1 In some embodiments of this utility model, in order to improve the processing efficiency of ink baking, two feeding conveying components 200 are arranged side by side through the feeding port 110, two discharging conveying components 300 are arranged side by side through the discharging port 120, and two rotary conveying mechanisms 400 are respectively arranged between the corresponding feeding conveying components 200 and discharging conveying components 300.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A baking oven for battery cells, characterized in that, include: A furnace body (100) is provided with a feed inlet (110) and a discharge outlet (120) on opposite sides. The furnace body (100) is provided with a feed conveying assembly (200) passing through the feed inlet (110) and a discharge conveying assembly (300) passing through the discharge outlet (120). The furnace body (100) is provided with a heating assembly (600) and a rotary conveying mechanism (400) located between the feed conveying assembly (200) and the discharge conveying assembly (300). The rotary conveying mechanism (400) 00) Rotating in the up-down direction, the rotary conveying mechanism (400) is provided with a plurality of receiving frame assemblies (500) spaced apart along its extension direction. The receiving frame assembly (500) includes two receiving strips (510) arranged opposite to each other. The receiving strip (510) has a first supporting surface (511) inclined downward and a second supporting surface (512) inclined upward. The two first supporting surfaces (511) or the two second supporting surfaces (512) of the two receiving strips (510) jointly support the two sides of the battery cell (10).

2. The baking oven for battery cells according to claim 1, characterized in that: A horizontally oriented V-shaped opening or trapezoidal opening is formed between the first supporting surface (511) and the second supporting surface (512) on the receiving strip (510). The two V-shaped openings of the two receiving strips (510) are arranged face to face, or the two trapezoidal openings of the two receiving strips (510) are arranged face to face.

3. A baking oven for battery cells according to claim 2, characterized in that: The included angle between the first supporting surface (511) and the second supporting surface (512) on the receiving strip (510) is between 40° and 60°.

4. A baking oven for battery cells according to claim 2, characterized in that: Both the first support surface (511) and the second support surface (512) are provided with a plurality of notches (513) at intervals along the length direction of the receiving strip (510), and the notches (513) correspond to the side edges of the battery cell (10).

5. A baking oven for battery cells according to claim 2, characterized in that: The rotary conveying mechanism (400) includes at least two sets of chain drive assemblies arranged at intervals. The chain drive assembly includes a driving sprocket (410) and a driven sprocket (420) arranged vertically, and a chain (430) connecting the driving sprocket (410) and the driven sprocket (420). One end of two oppositely arranged receiving bars (510) is fixedly installed on the two chains (430). The receiving bar (510) has a limiting part at the end near the chain (430) for abutting against the end face of the battery cell (10).

6. A baking oven for battery cells according to claim 5, characterized in that: The chain (430) is formed by connecting multiple links (431) in sequence to form a circle. The side of each link (431) is provided with a side lug (432). The side lug (432) is provided with a first mounting hole (433). The receiving strip (510) is provided with a mounting plate (520) near one end of the chain (430). The mounting plate (520) is provided with a second mounting hole (521) opposite to the first mounting hole (433). A part of the mounting plate (520) constitutes the limiting part. Fastening bolts are provided through the second mounting hole (521) and the first mounting hole (433) to connect the mounting plate (520) and the side lug (432).

7. A baking oven for battery cells according to claim 6, characterized in that: The mounting plate (520) is a long strip that is horizontally orthogonal to the transmission direction of the battery cell (10). A receiving strip (510) is provided at both ends of the mounting plate (520). The openings of the two receiving strips (510) on the same mounting plate (520) are arranged opposite to each other. Multiple support strips (530) are connected between the two receiving strips (510) on the same mounting plate (520) and are arranged at intervals along the length direction of the receiving strips (510).

8. A baking oven for battery cells according to claim 7, characterized in that: The mounting plate (520) has a second mounting hole (521) at each end, and the two chains (430) are respectively connected to the two ends of the mounting plate (520).

9. A baking oven for battery cells according to claim 1, characterized in that: The feed inlet (110) and the discharge outlet (120) are both located at the bottom of the furnace body (100), and the heating components (600) are distributed on the two opposing inner sidewalls of the furnace body (100) facing the rotary conveyor mechanism (400).

10. A baking oven for battery cells according to claim 1, characterized in that: Two feed conveying components (200) are arranged side by side through the feed inlet (110), two discharge conveying components (300) are arranged side by side through the discharge inlet (120), and two rotary conveying mechanisms (400) are respectively arranged between the corresponding feed conveying components (200) and discharge conveying components (300).

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