Hanger backflow device

Abstract

The utility model relates to the technical field of solar cell manufacturing, in particular to a hanger backflow device which comprises closed conductor assemblies fixed to hangers in a one-to-one correspondence mode. The rack comprises a plurality of stations which are sequentially arranged in the first direction; the conveying assembly is arranged on the rack and used for conveying the hanging tool in the first direction; and the electromagnet assemblies are fixed to the stations in a one-to-one correspondence mode, and the electrified electromagnet assemblies are used for providing resistance for preventing the closed conductor assemblies from moving in the first direction so that the hangers can slow down and stop at the corresponding stations. Noise pollution can be effectively reduced, deformation and even damage of the hanging tool caused by collision can be avoided, the service life of the hanging tool is prolonged, and the product yield of battery pieces is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of solar cell manufacturing, in particular to a hanger reflow device. BACKGROUND

[0002] Electroplating is an important process for metalizing a heterojunction solar cell, and a hanger is a tool for the electroplating process. The cell is placed in the hanger, and then the electroplating process is realized by the electroplating machine to grow the grid lines. After completing a working cycle, the hanger needs to be transported to the starting position by the reflow device to wait for the reloaded cell.

[0003] In the related art, a blocking structure is provided at the starting position. After the first hanger is stopped at the starting position by the blocking structure, the reflow device still transports other hangers in the direction of the starting position at a high speed. The subsequent hangers stop moving only after colliding with the previous hanger. The collision of the hangers not only produces a large vibration and noise, but also may cause the deformation or damage of the hanger structure, thereby causing the fragments of the solar cell or the poor electroplating of the subsequent cell loaded on the hanger. CONTENT OF THE INVENTION

[0004] The hanger reflow device provided by the embodiments of the present application can effectively reduce noise pollution, prolong the service life of the hanger, and improve the product yield of the cell.

[0005] The hanger reflow device provided by the embodiments of the present application includes:

[0006] A closed conductor assembly is fixed one-to-one to the hanger;

[0007] A rack includes a plurality of stations arranged in sequence along a first direction;

[0008] A conveying assembly is arranged in the rack and is used for conveying the hanger along the first direction; and

[0009] An electromagnet assembly is fixed one-to-one to the station. The electromagnet assembly is used for providing resistance to the movement of the closed conductor assembly along the first direction after being energized, so that the hanger slows down and stops at the corresponding station.

[0010] In some embodiments, the energizing current of the electromagnet assembly is adjustable.

[0011] In some embodiments, the device further includes a speed detection assembly fixed one-to-one to the station. The speed detection assembly is used for detecting the movement speed of the corresponding hanger.

[0012] The speed detection assembly and the electromagnet assembly at the same station are arranged in sequence along the first direction and are respectively connected to a control system.

[0013] In some embodiments, the speed detecting component comprises a photoelectric speed sensor.

[0014] In some embodiments, the closing conductor component comprises two closing conductors, one of which is fixed to one end of the hanger in a second direction, and the other of which is fixed to the other end of the hanger in the second direction, the second direction being perpendicular to the first direction.

[0015] The electromagnet component comprises two electromagnets, one of which is arranged corresponding to one of the two closing conductors.

[0016] In some embodiments, the closing conductor is a copper coil.

[0017] In some embodiments, the conveying component comprises two conveying chains arranged in a second direction, the second direction being perpendicular to the first direction.

[0018] One end of the hanger is placed on one of the two conveying chains, and the other end of the hanger is placed on the other of the two conveying chains.

[0019] The two conveying chains are used to convey the hanger synchronously.

[0020] In some embodiments, the conveying component further comprises two drive wheels arranged corresponding to the conveying chains, the two drive wheels rotating synchronously to drive the two conveying chains to convey the hanger synchronously.

[0021] In some embodiments, the device has a first end and a second end arranged in sequence along a first direction.

[0022] The device further comprises a blocking component arranged on the rack and located at the second end of the device, the blocking component comprising a blocking part.

[0023] The blocking part can move to the movement path of the hanger to block the hanger.

[0024] In some embodiments, the blocking component comprises two blocking cylinders arranged in a second direction perpendicular to the first direction, one of which corresponds to one end of the hanger in the second direction, and the other of which corresponds to the other end of the hanger in the second direction.

[0025] The blocking cylinder comprises a cylinder body and a piston rod matched with each other, the cylinder body is fixed to the frame, the piston rod is configured as the blocking part, the piston rod can be extended to block the hanger, and the piston rod can be retracted to avoid the hanger.

[0026] Compared with the prior art, the hanger return device has the beneficial effects that: the hanger return device comprises a closed conductor assembly, a frame, a conveying assembly and an electromagnet assembly, the closed conductor assembly is fixed to the hanger one by one, the frame comprises a plurality of workstations arranged in sequence along a first direction, the conveying assembly is arranged on the frame and is used for conveying the hanger along the first direction, and the electromagnet assembly is fixed to the workstations one by one; the electromagnet assembly is used for providing resistance after being electrified, the resistance can hinder the closed conductor assembly from moving along the first direction, so that the hanger can slow down and stop at the corresponding workstation, noise pollution can be effectively reduced, collision can be avoided to cause deformation or damage of the hanger, the service life of the hanger is prolonged, and the product yield of the battery piece is improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 FIG. 6 is a structural schematic diagram of a frame of the hanger return device according to an embodiment of the present application;

[0028] Figure 2 FIG. 6 is a structural schematic diagram of a frame of the hanger return device according to an embodiment of the present application; Figure 1 FIG. 7 is a working principle diagram of the hanger return device shown in FIG. 6;

[0029] Figure 3 FIG. 7 is a working principle diagram of the hanger return device shown in FIG. 6; Figure 1 FIG. 7 is a working principle diagram of the hanger return device shown in FIG. 6;

[0030] Figure 4 FIG. 6 is a structural schematic diagram of a frame of the hanger return device according to an embodiment of the present application;

[0031] Wherein: 1 - closing conductor assembly (1a - closing conductor assembly, 1b - closing conductor assembly, 1c - closing conductor assembly, 1d - closing conductor assembly, 1e - closing conductor assembly, 101 - closing conductor (101a - first closing conductor, 101b - second closing conductor)), 2 - rack (201 - work station (201a - work station, 201b - work station, 201c - work station, 201d - work station, 201e - work station), 202 - base, 203 - support), 3 - conveying assembly (301 - conveying chain (301a - first conveying chain, 301b - second conveying chain), 302 - drive wheel), 4 - electromagnet assembly (4a - electromagnet assembly, 4b - electromagnet assembly, 4c - electromagnet assembly, 4d - electromagnet assembly, 4e - electromagnet assembly, 401 - electromagnet (401a - first electromagnet, 401b - second electromagnet), 402 - magnetic field), 5 - hanger (5a - hanger, 5b - hanger, 5c - hanger, 5d - hanger, 5e - hanger, 501 - first end of the hanger, 502 - second end of the hanger, 503 - body, 504 - protrusion), 6 - first end of the hanger reflow device, 7 - second end of the hanger reflow device, 8 - speed detection assembly (801 - photoelectric speed sensor (801a - first photoelectric speed sensor, 801b - second photoelectric speed sensor)), 9 - blocking assembly (901 - blocking cylinder (901a - first blocking cylinder, 901b - second blocking cylinder, 9011 - cylinder body, 9012 - piston rod)). DETAILED DESCRIPTION

[0032] For the purposes of this application, reference will be made to the accompanying drawings in which the preferred embodiments of the application are illustrated. The application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the application to those skilled in the art.

[0033] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0035] Reference will now be made to Figure 1The hanger reflow device in the embodiment of the present application comprises a closed conductor assembly 1, a rack 2, a conveying assembly 3 and an electromagnet assembly 4. The closed conductor assembly 1 is arranged in one-to-one correspondence with the hanger 5, and the closed conductor assembly 1 is fixed on the corresponding hanger 5. The rack 2 comprises a plurality of stations 201, and all the stations 201 are arranged in sequence along a first direction. The conveying assembly 3 is arranged on the rack 2, and the conveying assembly 3 is used to convey the hanger 5 along the first direction, that is, the first direction is the conveying direction of the conveying assembly 3. The electromagnet assembly 4 is arranged in one-to-one correspondence with the station 201, and the electromagnet assembly 4 is fixed at the corresponding station 201. The electromagnet assembly 4 after being powered on can provide a resistance to hinder the movement of the closed conductor assembly 1 along the first direction, so that the hanger 5 is slowed down and stopped in the corresponding station 201.

[0036] In the embodiment of the present application, the electromagnet assembly 4 after being powered on is used to provide a resistance, and the resistance can hinder the movement of the closed conductor assembly 1 along the first direction, so that the hanger 5 can be slowed down and stopped in the corresponding station 201, which can effectively reduce noise pollution, avoid deformation or even damage of the hanger 5 caused by collision, prolong the service life of the hanger 5, and improve the product yield of the solar cell wafer.

[0037] As an example, please refer to Figure 1 The hanger reflow device has a first end 6 and a second end 7 arranged in sequence along a first direction, the conveying assembly 3 is used to convey the hanger 5 from the first end 6 of the hanger reflow device to the second end 7 of the hanger reflow device, and the hanger 5 waits for re-loading of the cell wafer at the second end 7 of the hanger reflow device. Please refer to Figure 2 As an example, please refer to

[0038] As an example, please refer to Figure 1As shown, when the conveying assembly 3 conveys the plurality of hangers 5 along the first direction, the electromagnet assemblies 4 are respectively powered to stop the hangers 5 in the corresponding stations 201 in sequence. For example, when the hanger 5b moves close to the station 201b, the electromagnet assembly 4b is powered, and the hanger 5b is stopped in the station 201b under the action of the electromagnet assembly 4b. When the hanger 5c moves close to the station 201c, the electromagnet assembly 4c is powered, and the hanger 5c is stopped in the station 201c under the action of the electromagnet assembly 4c. When the hanger 5d moves close to the station 201d, the electromagnet assembly 4d is powered, and the hanger 5d is stopped in the station 201d under the action of the electromagnet assembly 4d. When the hanger 5e moves close to the station 201e, the electromagnet assembly 4e is powered, and the hanger 5e is stopped in the station 201e under the action of the electromagnet assembly 4e.

[0039] It should be noted that in other embodiments, the electromagnet assembly 4 can provide resistance to any closed conductor assembly 1 approaching it along the first direction. For example, during the movement of the hanger 5d along the first direction to the station 201d, the electromagnet assembly 4e and the electromagnet assembly 4d can provide resistance to the closed conductor assembly 1d on the hanger 5d in sequence to gradually slow down the hanger 5d and stop it at the station 201d. The working mode of the electromagnet assembly 4 can be set according to actual conditions, as long as it can reduce noise pollution and avoid deformation or even damage of the hangers 5 caused by collision, which will not be described here.

[0040] In some embodiments, referring to Figure 3 , the conveying assembly 3 includes two conveying chains 301, which are a first conveying chain 301a and a second conveying chain 301b, and the first conveying chain 301a and the second conveying chain 301b are arranged in the second direction. The hanger 5 has a first end 501 and a second end 502 in the second direction, and the first end 501 of the hanger 5 is placed on the first conveying chain 301a, and the second end 502 of the hanger 5 is placed on the second conveying chain 301b. The first conveying chain 301a and the second conveying chain 301b are used to synchronously convey the hangers 5, so that the hangers 5 can be more stably conveyed, and the first conveying chain 301a and the second conveying chain 301b are arranged in the second direction, which will not interfere with the battery pieces on the hangers 5, and the layout is more reasonable.

[0041] In some embodiments, the conveying assembly 3 can further comprise two driving wheels 302, which rotate synchronously to drive the two conveying chains 301 to synchronously convey the hanger 5. Specifically, the two driving wheels 302 are a first driving wheel and a second driving wheel, respectively, wherein the first driving wheel is arranged corresponding to the first conveying chain 301a and is used to drive the first conveying chain 301a, and the second driving wheel is arranged corresponding to the second conveying chain 301b and is used to drive the second conveying chain 301b.

[0042] As an example, the conveying chain 301 can be a double-speed chain, and correspondingly, the driving wheel 302 can be a double-speed chain driving wheel.

[0043] It should be noted that in other embodiments, the conveying assembly 3 can also be other conveying devices, which are not described herein.

[0044] In some embodiments, each closed conductor assembly 1 comprises two closed conductors 101, which are a first closed conductor 101a and a second closed conductor 101b, respectively, wherein the first closed conductor 101a is fixed to the first end 501 of the hanger 5, and the second closed conductor 101b is fixed to the second end 502 of the hanger 5. Each electromagnet assembly 4 comprises two electromagnets 401, which are a first electromagnet 401a and a second electromagnet 401b, respectively, wherein the first electromagnet 401a is arranged corresponding to the first closed conductor 101a, and the second electromagnet 401b is arranged corresponding to the second closed conductor 101b.

[0045] As an example, in order to make the hanger 5 more stable under force, in the case that the closed conductor assembly 1 is subjected to resistance, the two closed conductors 101 in the same closed conductor assembly 1 can be subjected to the same resistance, so that the first end 501 and the second end 502 of the hanger 5 can be subjected to the same resistance, thereby making the hanger 5 stably stop in the corresponding work station 201, avoiding the hanger 5 to be skewed or to fall from between the two conveying chains 301, thereby further avoiding noise pollution and improving the service life of the hanger 5.

[0046] As an embodiment, the closed conductor 101 can be a copper coil. It should be noted that in other embodiments, the closed conductor 101 can be other materials, which are not limited herein.

[0047] In some embodiments, the energization current of the electromagnet assembly 4 can be adjusted, that is, the strength of the magnetic field generated by the electromagnet assembly 4 can be adjusted, so that the size of the resistance can be adjusted, so that the hanger 5 can be accurately stopped in the corresponding work station 201.

[0048] As an embodiment, please refer to Figure 1As shown, the hanger reflow device can further include a speed detection assembly 8. The speed detection assembly 8 is arranged in one-to-one correspondence with the workstations 201, and is fixed in the corresponding workstation 201. The speed detection assembly 8 and the electromagnet assembly 4 in the same workstation 201 are arranged in sequence along the first direction, and both are connected to the control system. The speed detection assembly 8 can detect the speed of the movement of the hanger 5. After the control system receives the signal fed back by the speed detection assembly 8, the control system can output a control signal for adjusting the current of the electromagnet assembly 4. In this embodiment, the current of the electromagnet assembly 4 can be adjusted according to the speed of the movement of the hanger 5, so as to change the size of the resistance, so that the hanger 5 can be accurately and stably stopped in the corresponding workstation 201.

[0049] As an example, the speed detection assembly 8 can include a photoelectric speed sensor 801. It should be noted that in other embodiments, the speed detection assembly 8 can also be other speed detection devices, which will not be described here.

[0050] In some examples, referring to Figure 3 As shown, each speed detection assembly 8 can include two photoelectric speed sensors 801, which are respectively a first photoelectric speed sensor 801a and a second photoelectric speed sensor 801b. The first photoelectric speed sensor 801a is arranged corresponding to the first end 501 of the hanger 5, and the second photoelectric speed sensor 801b is arranged corresponding to the second end 502 of the hanger 5. The control system can adjust the current of the first electromagnet 401a in the same workstation 201 according to the speed of the first end 501 of the hanger 5 detected by the first photoelectric speed sensor 801a, and adjust the current of the second electromagnet 401b in the same workstation 201 according to the speed of the second end 502 of the hanger 5 detected by the second photoelectric speed sensor 801b.

[0051] In other examples, each speed detection assembly 8 can include one photoelectric speed sensor 801, and the control system can synchronously adjust the current of the first electromagnet 401a and the current of the second electromagnet 401b according to the speed of the movement of the hanger 5 detected by the photoelectric speed sensor 801.

[0052] It should be noted that in other embodiments, the control system can also control the current of the electromagnet assembly 4 in other ways, which can be set according to actual conditions, and the control system in this application is prior art, which will not be limited here.

[0053] In some embodiments, referring to Figure 1As shown, the hanger backflow device further comprises a blocking assembly 9 arranged at the second end 7 of the hanger backflow device, and the blocking assembly 9 comprises a blocking part. The blocking part can move to the movement path of the hanger 5 to block the hanger 5, and the blocking part can also move away from the movement path of the hanger 5 to avoid the hanger 5. When the blocking part is located on the movement path of the hanger 5, the blocking part can effectively limit the hanger 5a at the station 201a at the second end 7 of the hanger backflow device, avoiding the hanger 5a from continuing to move in the first direction or even falling off the conveying assembly 3 due to accidental failure of the electromagnet assembly 4a and the like.

[0054] As an embodiment, the blocking assembly 9 comprises two blocking cylinders 901, as shown in Figure 3 The two blocking cylinders 901 are respectively a first blocking cylinder 901a and a second blocking cylinder 901b, and the first blocking cylinder 901a and the second blocking cylinder 901b are arranged in the second direction. The first blocking cylinder 901a corresponds to the first end 501 of the hanger 5, and the second blocking cylinder 901b corresponds to the second end 502 of the hanger 5. Each blocking cylinder 901 comprises a cylinder body 9011 and a piston rod 9012 that cooperate with each other, wherein the cylinder body 9011 is fixed to the rack 2, and the piston rod 9012 is configured as a blocking part. The piston rod 9012 can be extended to block the hanger 5, and the piston rod 9012 can also be retracted to avoid the hanger 5.

[0055] In this embodiment, the blocking assembly 9 comprises two blocking cylinders 901, which not only has a simple structure, but also the two blocking cylinders 901 are arranged corresponding to the ends of the hanger 5. Therefore, not only can the piston rod 9012 of the blocking cylinder 901 avoid accidental collision with the battery sheet when the piston rod 9012 is extended, but also the hanger 5a at the second end 7 of the hanger backflow device can be more effectively and reliably blocked at the station 201.

[0056] As an embodiment, as shown in Figure 3 The hanger 5 comprises a body 503 and a protruding part 504 protruding from the body 503. When the piston rod 9012 is extended, the protruding part 504 of the hanger 5a moving to the station 201a can abut against the piston rod 9012, as shown in Figure 1 and Figure 3 , so as to limit the hanger 5a at the station 201a.

[0057] As an example, the working principle of the present embodiment is as follows: when the blocking cylinder 901 is not working, the piston rod 9012 is retracted, all the electromagnet assemblies 4 and the speed detection assembly 8 are not working, and the hangers 5 pass normally. When the blocking cylinder 901 is working, the piston rod 9012 is extended, and when each hanger 5 moves to the position close to the corresponding work station 201, the speed detection assembly 8 detects the moving speed of the hanger 5, the control system adjusts the current of the electromagnet assembly 4 according to the moving speed of the hanger 5, the closed conductor assembly 1 is affected by the electromagnetic damping in the magnetic field of the electromagnet assembly 4, so that the hanger 5 slows down and stops in the corresponding work station 201, and the hanger 5a moving to the work station 201a slows down and stops at the blocking cylinder 901. In the present embodiment, since the blocking assembly 9 is arranged, the hangers 5 can be effectively blocked, so that when the hangers 5 stop, the corresponding electromagnet assembly 4 can continue to work to continuously provide resistance, please refer to Figure 1 Alternatively, the corresponding electromagnet assembly 4 can also stop working, please refer to Figure 4 Specifically, when the electromagnet assembly 4 stops working, that is, the electromagnet assembly 4 stops being powered, the hanger 5a abuts against the blocking assembly 9, and the remaining hangers 5 abut against the previous hanger 5, for example, the hanger 5b abuts against the hanger 5a, please refer to Figure 4 .

[0058] In some embodiments, please refer to Figure 1 and Figure 3 The closed conductor assembly 1 is arranged on the upper end of the hanger 5. The rack 2 includes a fixed base 202 and a support 203, the conveying assembly 3 is arranged on the fixed base 202, and the electromagnet assembly 4 is arranged on the support 203, and the electromagnet assembly 4 is located above the conveying assembly 3, so that the size of the hanger backflow device in the second direction can be effectively controlled, and the layout is more reasonable.

[0059] Any combination of the technical features of the above embodiments can be made, and in order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0060] The above embodiments only express the preferred embodiments of the present application, the description is more specific and detailed, but it cannot be understood as limiting the patent scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A hanger reflow apparatus, characterized by, The device comprises: a plurality of closed conductor assemblies fixed to the hangers one by one; a rack comprising a plurality of stations arranged in sequence along a first direction; a conveying assembly arranged in the rack and used for conveying the hangers along the first direction; and an electromagnet assembly fixed to the stations one by one, the electromagnet assembly being used for providing resistance to the movement of the closed conductor assemblies along the first direction after being energized, so that the hangers are decelerated and stopped at the corresponding stations.

2. The hanger reflow apparatus of claim 1, wherein The energized current of the electromagnet assembly is adjustable.

3. The hanger reflow apparatus of claim 1, wherein The device further comprises a speed detection assembly fixed to the stations one by one, the speed detection assembly being used for detecting the movement speed of the corresponding hangers. The speed detection assembly and the electromagnet assembly at the same station are arranged in sequence along the first direction and connected to a control system respectively.

4. The hanger reflow apparatus of claim 3, wherein The speed detection assembly comprises a photoelectric speed sensor.

5. The hanger reflow apparatus of claim 1, wherein The closed conductor assembly comprises two closed conductors, one of which is fixed to one end of the hanger in a second direction, and the other of which is fixed to the other end of the hanger in the second direction, the second direction being perpendicular to the first direction. The electromagnet assembly comprises two electromagnets arranged one by one with the two closed conductors.

6. The hanger reflow apparatus of claim 5, wherein The closed conductor is a copper coil.

7. The hanger reflow apparatus of claim 1, wherein The conveying assembly comprises two conveying chains arranged in sequence in a second direction, the second direction being perpendicular to the first direction. One end of the hanger is placed on one of the conveying chains in the second direction, and the other end of the hanger is placed on the other conveying chain in the second direction. The two conveying chains are used for synchronously conveying the hangers.

8. The hanger reflow apparatus of claim 7, wherein The conveying assembly further comprises two drive wheels arranged one by one with the conveying chains, the two drive wheels being synchronously rotated to drive the two conveying chains to synchronously convey the hangers.

9. The hanger reflow apparatus of claim 1, wherein The device has a first end and a second end arranged in sequence along a first direction. The device further comprises a blocking assembly arranged in the rack and located at the second end of the device, the blocking assembly comprising a blocking part. The blocking part can move onto the movement path of the hanger to block the hanger.

10. The hanger reflow apparatus of claim 9, wherein The blocking assembly comprises two blocking cylinders arranged in sequence in a second direction perpendicular to the first direction, one of which corresponds to one end of the hanger in the second direction, and the other of which corresponds to the other end of the hanger in the second direction. The blocking cylinder comprises a cylinder body and a piston rod matched with each other, the cylinder body being fixed to the rack, and the piston rod being configured as the blocking part, the piston rod being able to extend to block the hanger and being able to retract to avoid the hanger.

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