Heterojunction battery coating equipment

Abstract

The utility model relates to the technical field of battery coating, in particular to heterojunction battery coating equipment which comprises a physical vapor deposition (PVD) coating machine body and a hanging plate mechanism, the hanging plate mechanism is arranged in an operation cavity of the PVD coating machine body and comprises a base plate, a stand column, a supporting wheel and a rotating ring, and a hollow cavity is formed in the rotating ring. The chassis is fixed to the bottom in an operation cavity of the PVD coating machine body, the stand column is arranged at the circle center of the bottom of the chassis, the top and the bottom of the stand column are rotationally connected with the chassis and the top in the operation cavity of the PVD coating machine body through sealing bearings correspondingly, and the supporting wheels are connected to the peripheries of the top and the bottom of the stand column correspondingly. According to the PVD coating machine, the PVD coating machine body and the hanging plate mechanism form an assembly, so that a set of coating equipment capable of rotating and rotating in a linkage manner is provided for coating processing of solar battery pieces, and each battery piece can independently rotate during coating, so that the coating uniformity is improved, and the coating quality of the battery pieces is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery plating film technical field, concretely relates to a kind of heterojunction battery plating film equipment. BACKGROUND

[0002] Heterojunction battery is mainly applied to photovoltaic module, adapts photovoltaic power station, BIPV and distributed power generation system, by high efficiency, double-sided power generation, low attenuation and thin sheet advantage, promote photovoltaic technology upgrade, help carbon neutralization, and heterojunction battery piece generally is handled by plating film, passivation film formed by plating film reduces less complex, improves carrier collection efficiency, generally by the PVD plating film equipment processing that is internally provided with rotating hanger is realized.

[0003] During plating film of existing battery piece, battery piece can only rotate in plating film chamber along with the rotation of hanger, each group of battery piece cannot independently rotate, leading to the problem that uniformity in battery piece plating film process is limited, therefore a kind of heterojunction battery plating film equipment is presented. UTILITY MODEL CONTENT

[0004] In view of the problems in the prior art, the utility model provides a kind of heterojunction battery plating film equipment to provide a set of plating film equipment that can be linked rotation and autorotation for the plating film processing of solar cell piece, so that each battery piece can be independently rotated during plating film, to improve the uniformity of plating film, ensure the plating film quality of battery piece.

[0005] The utility model solves the technical scheme that it adopts is a kind of heterojunction battery plating film equipment, including PVD plating film machine body and hanging plate mechanism, the hanging plate mechanism is set in the operation cavity of PVD plating film machine body;

[0006] The hanging plate mechanism includes chassis, stand, support wheel and rotating ring with hollow cavity in the inside, the chassis is fixed in the operation cavity of PVD plating film machine body bottom, the stand is set in the bottom center of chassis, and the top and bottom of stand are respectively connected with the top of chassis and the operation cavity of PVD plating film machine body by sealing bearing, and the support wheel is respectively connected to the outer periphery of the top and bottom of stand.

[0007] By adopting the above technical scheme, the assembly of PVD plating film machine body and hanging plate mechanism is provided to provide a set of plating film equipment that can be linked rotation and autorotation for the plating film processing of solar cell piece, so that each battery piece can be independently rotated during plating film, to improve the uniformity of plating film, ensure the plating film quality of battery piece.

[0008] Specific, the top and bottom of the column between the support wheel is equidistantly provided with a rotating sleeve along the circumference, the rotating sleeve top and bottom are respectively connected with the rotating sleeve in the corresponding position through the sealing bearing, the rotating ring is equidistantly fixed on the rotating sleeve, the bottom of the rotating ring is provided with a clamp for clamping the battery piece.

[0009] The top of the column is provided with a motor, the driving end of the motor is connected with the column top shaft head through a shaft coupling, and the motor body is fixed in the top of the PVD coating machine body.

[0010] By adopting the above technical scheme, through the setting of the motor, the rotating sleeve on the support wheel can rotate in the working cavity of the PVD coating machine body after the motor drives the column to rotate, and at the same time, the rotating ring on the rotating sleeve can also move along the inner circumference of the working cavity of the PVD coating machine body.

[0011] Specifically, the top of the rotating sleeve is connected with a gear disc along the outer circumference, and the inner top of the working cavity of the PVD coating machine body is fixedly connected with a gear ring, the gear teeth of the gear ring are arranged along the inner circumference and are engaged with the gear disc.

[0012] By adopting the above technical scheme, through the setting of the gear disc and the gear ring, the gear disc on the rotating sleeve can independently drive the rotating ring to rotate based on the engagement with the gear ring during the rotation of the support wheel, realizing the second rotation, so as to further improve the film coating uniformity of the battery piece hung below the rotating ring.

[0013] Specifically, the inner circle of the rotating sleeve is provided with a core rod, the outer periphery of the core rod is fixedly sleeved with an outer gear sleeve, the inner periphery of the rotating sleeve is fixedly connected with a supporting lug, the supporting lug is rotatably connected with a gear through a bearing, the gear is engaged with the outer gear sleeve, and the top of the gear is connected with a first synchronous wheel.

[0014] Specifically, the rotating ring and the rotating sleeve are fixedly connected with a connecting arm, the hollow cavity of the rotating ring is rotatably connected with a rotating shaft at equal intervals through a bearing, the outer periphery of the rotating shaft is connected with a second synchronous wheel, the connecting arm is provided with a synchronous belt, and the two ends of the synchronous belt are sleeved on the first synchronous wheel and the second synchronous wheel respectively.

[0015] The bottom of the rotating shaft penetrates the rotating ring and is connected with the top of the clamp.

[0016] By adopting the technical scheme, through the arrangement of the first synchronous wheel and the second synchronous wheel, after the rotation of the rotating sleeve, the gear in the rotating sleeve generates rotation based on the meshing with the outer gear sleeve, the rotation force is synchronized to the rotating shaft based on the connection of the synchronous belt with the first synchronous wheel and the second synchronous wheel, the clip at the bottom of the rotating shaft for clamping the battery piece is rotated, each group of clips can drive the battery piece to rotate independently, the battery piece can rotate independently while moving along the inner periphery of the working cavity of the PVD coating machine body, the uniformity of the coating on the two surfaces of the battery piece is greatly improved, and the coating quality of the battery piece is improved.

[0017] The PVD coating machine body and the hanging plate mechanism constitute an assembly, a coating equipment capable of linkage rotation and self-rotation is provided for the coating processing of the solar cell piece, each battery piece can rotate independently during coating, the uniformity of the coating is improved, the coating quality of the battery piece is ensured, and the problem that the battery piece can only rotate in the coating chamber along with the rotation of the hanging frame and cannot rotate independently during coating is solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model is further described below in combination with the drawings and examples.

[0019] Figure 1 It is the whole schematic view of the utility model;

[0020] Figure 2 It is the hanging plate mechanism schematic view of the utility model;

[0021] Figure 3 It is the support wheel schematic view of the utility model;

[0022] Figure 4 It is the rotating ring overhead section schematic view of the utility model;

[0023] Figure 5 It is the Figure 3 Enlarged schematic view of A in the utility model;

[0024] Figure 6 It is the Figure 4 Enlarged schematic view of B in the utility model;

[0025] Figure 7 It is the Figure 4 Enlarged schematic view of C in the utility model;

[0026] In the figure: PVD coating machine body 1, hanging plate mechanism 2, chassis 21, stand 22, support wheel 23, rotating sleeve 24, core rod 241, outer gear sleeve 242, support ear 201, gear 243, first synchronous wheel 244, rotating ring 25, connecting arm 251, rotating shaft 252, second synchronous wheel 253, synchronous belt 254, clip 26, toothed disc 27, toothed ring 28, motor 29. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0028] As shown in Figures 1-7 The utility model discloses a kind of heterojunction cell coating equipment, including PVD coating machine body 1 and hanging plate mechanism 2, the hanging plate mechanism 2 is set in the working cavity of PVD coating machine body 1;

[0029] The hanging plate mechanism 2 includes chassis 21, stand 22, support wheel 23 and rotating ring 25 with hollow cavity inside, the chassis 21 is fixed in the bottom of the working cavity of PVD coating machine body 1, the stand 22 is set in the bottom center of chassis 21, and the top and bottom of stand 22 are rotatably connected with the top of chassis 21 and the top of the working cavity of PVD coating machine body 1 respectively by sealing bearing, the support wheel 23 is connected to the outer periphery of the top and bottom of stand 22 respectively.

[0030] The utility model further includes, rotating sleeve 24 is peripherally equidistantly arranged between the support wheel 23 of the top and bottom of stand 22, the rotating sleeve 24 top and bottom are rotatably connected with the rotating sleeve 24 of corresponding position respectively by sealing bearing, the rotating ring 25 is equidistantly fixedly sleeved on rotating sleeve 24, the rotating ring 25 bottom is provided with the clip 26 for clamping cell piece;

[0031] The top of stand 22 is provided with motor 29, the driving end of motor 29 is connected with the top shaft head of stand 22 by coupling, and the body of motor 29 is fixed to the top of PVD coating machine body 1.

[0032] When using, by the setting of motor 29, after motor 29 drives stand 22 to rotate, rotating sleeve 24 on support wheel 23 can rotate in the working cavity of PVD coating machine body 1, at the same time, rotating ring 25 on rotating sleeve 24 can also move along the inner periphery of the working cavity of PVD coating machine body 1.

[0033] The utility model further includes, the toothed disc 27 is connected to the outer periphery of the top of rotating sleeve 24, the working cavity top of PVD coating machine body 1 is fixedly connected with toothed ring 28, and the teeth of toothed ring 28 are arranged along the inner periphery and are engaged with toothed disc 27.

[0034] In use, based on the arrangement of the tooth disc 27 and the tooth ring 28, during the rotation of the supporting wheel 23, the tooth disc 27 on the rotating sleeve 24 can independently drive the rotating ring 25 to rotate based on the engagement with the tooth ring 28, to realize the second rotation, so as to further improve the uniformity of the battery piece film coating arranged below the rotating ring 25.

[0035] The utility model also includes, the rotating sleeve 24 inner circle center is provided with the core pole 241, the core pole 241 outer periphery fixedly sheathed has the outer gear cover 242, the rotating sleeve 24 inner periphery fixedly connected has the support ear 201, the support ear 201 is rotated and is connected with the gear 243 through the bearing, the gear 243 is engaged with the outer gear cover 242, the gear 243 top is connected with the first synchronous pulley 244.

[0036] The utility model also includes, the rotating ring 25 with rotating sleeve 24 fixedly connected has the connecting arm 251, the hollow cavity of rotating ring 25 is equidistant and is rotated and is connected with the rotating shaft 252 through the bearing, the rotating shaft 252 outer periphery is connected with the second synchronous pulley 253, the connecting arm 251 is provided with synchronous belt 254, and synchronous belt 254 both ends are respectively sheathed in first synchronous pulley 244 and second synchronous pulley 253 on;

[0037] The rotating shaft 252 bottom penetrates rotating ring 25 and is connected with the top of the clamp 26.

[0038] In use, by the arrangement of the first synchronous pulley 244 and the second synchronous pulley 253, after the rotation of the rotating sleeve 24, the gear 243 in the rotating sleeve 24 produces rotation based on the engagement with the outer gear cover 242, based on the connection of the synchronous belt 254 with the first synchronous pulley 244 and the second synchronous pulley 253, the rotating force is synchronized to the rotating shaft 252, so that the clamp 26 for clamping the battery piece at the bottom of the rotating shaft 252 is rotated, so that each group of clamps 26 can independently drive the battery piece to rotate, so that the battery piece can also independently rotate while moving along the inner periphery of the working cavity of the PVD film coating machine body 1, greatly improving the uniformity of the film coating on the two surfaces of the battery piece and improving the quality of the battery piece film coating.

[0039] In use, the battery cells to be coated are sequentially clamped onto the clamp 26. The specific size of the clamp 26 is set according to the actual usage requirements of the battery cells. After the battery cells are clamped, the door of the PVD coating machine body 1 is closed, and the column 22 is driven to rotate by the motor 29. After the column 22 rotates, the rotating sleeve 24 on the support wheel 23 can rotate within the working cavity of the PVD coating machine body 1. At the same time, the rotating ring 25 on the rotating sleeve 24 can also move along the inner circumference of the working cavity of the PVD coating machine body 1. Based on the setting of the toothed disc 27 and the toothed ring 28, during the rotation of the support wheel 23, the toothed disc 27 on the rotating sleeve 24, based on its meshing with the toothed ring 28, can independently drive the rotating ring 25 to rotate, realizing a second rotation. To further improve the uniformity of the coating on the battery cells hanging below the rotating ring 25, the first synchronous wheel 244 and the second synchronous wheel 253 are used. After the rotating sleeve 24 rotates, the gear 243 inside the rotating sleeve 24 rotates based on its meshing with the outer gear sleeve 242. Based on the connection between the synchronous belt 254 and the first synchronous wheel 244 and the second synchronous wheel 253, the rotational force is synchronized to the rotating shaft 252, so that the clamp 26 at the bottom of the rotating shaft 252 used to clamp the battery cells rotates. This allows each set of clamps 26 to drive the battery cells to rotate independently. While the battery cells move along the inner circumference of the working cavity of the PVD coating machine body 1, they can also rotate independently, which greatly improves the uniformity of the coating on both sides of the battery cells and improves the quality of the battery cell coating.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heterojunction battery coating apparatus, characterized in that, Including PVD coating machine body (1) and hanging plate mechanism (2), the hanging plate mechanism (2) is arranged in the working cavity of PVD coating machine body (1); The hanging plate mechanism (2) includes a chassis (21), a stand (22), a support wheel (23) and a rotating ring (25) with a hollow cavity inside, the chassis (21) is fixed to the bottom of the working cavity of the PVD coating machine body (1), the stand (22) is arranged at the bottom center of the chassis (21), and the top and bottom of the stand (22) are rotatably connected to the chassis (21) and the top of the working cavity of the PVD coating machine body (1) respectively through sealing bearings, and the support wheels (23) are connected to the outer periphery of the top and bottom of the stand (22) respectively.

2. The heterojunction cell coating apparatus according to claim 1, wherein The rotating sleeve (24) is arranged equidistantly along the circumference between the support wheels (23) at the top and bottom of the stand (22), the rotating sleeve (24) is rotatably connected to the corresponding position of the rotating sleeve (24) through sealing bearings at the top and bottom, the rotating ring (25) is equidistantly fixed on the rotating sleeve (24), and the rotating ring (25) is provided with a clamp (26) for clamping battery pieces at the bottom. The top of the stand (22) is provided with a motor (29), the driving end of the motor (29) is connected to the shaft head at the top of the stand (22) through a shaft coupling, and the body of the motor (29) is fixed to the top of the PVD coating machine body (1).

3. The heterojunction cell coating apparatus according to claim 2, wherein The top outer periphery of the rotating sleeve (24) is connected with a gear disc (27), the top of the working cavity of the PVD coating machine body (1) is fixedly connected with a gear ring (28), the gear teeth of the gear ring (28) are arranged along the inner periphery and are engaged with the gear disc (27).

4. The heterojunction cell coating apparatus according to claim 3, wherein The inner center of the rotating sleeve (24) is provided with a core rod (241), the outer periphery of the core rod (241) is fixedly sleeved with an outer gear sleeve (242), the inner periphery of the rotating sleeve (24) is fixedly connected with a support ear (201), the support ear (201) is rotatably connected with a gear wheel (243) through a bearing, the gear wheel (243) is engaged with the outer gear sleeve (242), and the top of the gear wheel (243) is connected with a first synchronous wheel (244).

5. The heterojunction cell coating apparatus according to claim 4, wherein The rotating ring (25) and the rotating sleeve (24) are fixedly connected with a connecting arm (251), the hollow cavity of the rotating ring (25) is rotatably connected with a rotating shaft (252) at equal distances through bearings, the outer periphery of the rotating shaft (252) is connected with a second synchronous wheel (253), the connecting arm (251) is provided with a synchronous belt (254), and the two ends of the synchronous belt (254) are sleeved on the first synchronous wheel (244) and the second synchronous wheel (253) respectively. The bottom of the rotating shaft (252) penetrates the rotating ring (25) and is connected to the top of the clamp (26).

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