Busbar bearing platform and busbar welding equipment

Abstract

The present application provides a busbar carrier and busbar welding equipment, the busbar carrier includes a mounting plate, N soldering stations and M suction cup assemblies. The N soldering stations are arranged on the mounting plate along the first horizontal direction, and the N soldering stations are used to cooperate with the busbar; the M suction cup assemblies are arranged on the mounting plate along the first horizontal direction, and the M suction cup assemblies are used to cooperate with the adsorption of the busbar. A first air path extending along the first horizontal direction is provided in the mounting plate, the first air path is connected to the M suction cup assemblies, and the first air path is also connected to a vacuum pumping device, the vacuum pumping device evacuates the M suction cup assemblies through the first air path, so that the M suction cup assemblies adsorb the busbar. In the busbar carrier of the present application, the M suction cup assemblies are connected to the vacuum pumping device by the first air path provided in the mounting plate. By arranging an air pipe between the first air path and the vacuum pumping device, the vacuum pumping device can evacuate all the suction cup assemblies, thereby simplifying the air path layout and reducing the interference to the movement of the busbar carrier.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic component production, in particular to a busbar bearing platform and busbar welding equipment. Background Art

[0002] When welding the busbar to the extended welding strip of the battery string group, it is necessary to use a busbar carrier to support the busbar and transport the busbar to the bottom of the corresponding extended welding strip, and then use a welding mechanism to press the extended welding strip and the busbar tightly together for welding.

[0003] In order to implement the adsorption and fixation of the busbar, at least two suction cup assemblies are provided on the length direction of the busbar support platform, and each suction cup assembly cooperates to adsorb the busbar. In the existing busbar support platform, each suction cup assembly thereon is provided with a separate external exhaust pipe to connect to an external vacuum generating device, and the vacuum generating device exhausts air from the corresponding suction cup assembly through the external exhaust pipe to make the suction cup assembly have adsorption properties. Due to the limited space under the busbar support platform, too many external exhaust pipes are provided under the busbar support platform, which looks very messy and will also affect the translation and lifting movements of the busbar support platform during operation. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a busbar bearing platform, and its detailed technical solution is as follows:

[0005] A busbar carrier comprises a mounting plate, N welding stations and M suction cup assemblies, wherein:

[0006] N welding platforms are arranged on the mounting plate along a first horizontal direction, and the N welding platforms are used to cooperate with and support a bus bar extending along the first horizontal direction;

[0007] M suction cup assemblies are arranged on the mounting plate along a first horizontal direction, and the M suction cup assemblies are used to cooperate with the bus bars carried on the N welding stations to be adsorbed;

[0008] A first air path extending along a first horizontal direction is provided in the mounting plate. The first air path is connected to M suction cup assemblies. The first air path is also connected to an external vacuum pumping device via a first air pipe. The vacuum pumping device is used to evacuate air from the M suction cup assemblies via the first air path so that the M suction cup assemblies adsorb the bus bar.

[0009] The busbar carrier platform provided in the present application has M suction cup assemblies that are uniformly connected to an external vacuum pumping device by a first air path arranged in a mounting plate. By setting only one air pipe, i.e., the first air pipe, between the first air path and the vacuum pumping device, the vacuum pumping device can perform unified vacuuming on all the suction cup assemblies, so that all the suction cup assemblies can adsorb the busbar at the same time. Since there is only one first air pipe, the air path layout of the busbar carrier platform is simplified, and the interference to the movement of the busbar carrier platform is also reduced.

[0010] In some embodiments, the busbar support platform also includes a first joint arranged on the mounting plate, the first joint is connected to the first air path, the first joint is used to connect to the vacuum device through the first air pipe, and the vacuum device evacuates the first air path through the first joint.

[0011] By providing the first joint, the connection between the first gas path and the first gas pipe connected to the vacuum pumping device is achieved.

[0012] In some embodiments, the mounting plate is provided with vertically penetrating mounting holes corresponding one to one with the suction cup assemblies; the suction cup assembly includes a mounting body and a suction cup, the upper end of the mounting body is inserted into the mounting hole, and the suction cup is installed on the upper end of the mounting body; a first connecting air channel connecting the first air path and the suction cup is opened in the mounting body, and the vacuum device evacuates air from the suction cup through the first air path and the first connecting air channel so that the suction cup generates an adsorption force to adsorb the bus bar.

[0013] A specific suction cup assembly and its installation structure are provided. A first connecting air passage connected to a first air passage is opened in an installation body to achieve communication between the suction cup and the first air passage. In this way, a vacuum pumping device can simultaneously evacuate the suction cups of each suction cup assembly through the first air passage.

[0014] In some embodiments, the busbar support platform further includes a lifting drive assembly, which is used to drive each installation body to rise and fall, so as to drive the suction cups on each installation body to switch between an adsorption high position and an avoidance low position.

[0015] By setting a lifting drive assembly, before placing the busbar, the lifting drive assembly drives the suction cup to the high suction position through the mounting body. In this way, when the busbar is placed on the N welding tables, the suction cup can contact or approach the busbar to implement suction and fixation of the busbar. Before welding the busbar, the lifting drive assembly drives the suction cup to the avoidance low position through the mounting body to avoid the busbar and prevent the suction cup from being damaged by the high temperature during the welding process.

[0016] In some embodiments, the lifting drive assembly includes M cylinders and M first springs, the cylinder is provided with a cylindrical cavity inside, and the upper end of the cylinder is provided with a transition hole connecting the cavity and the mounting hole, and the aperture of the transition hole is smaller than the diameter of the cavity; the mounting body includes a first mounting part and a second mounting part, wherein the second mounting part passes upward through the transition hole into the mounting hole, and the suction cup is connected to the upper end of the second mounting part; the M first mounting parts are inserted into the cavities of the M cylinders one by one, and a first spring is pressed between the bottom of each first mounting part and the cavity, and the part of the cavity located above the first mounting part forms a compression chamber; a second air path extending along the first horizontal direction is also provided in the mounting plate, the second air path is connected with the M compression chambers, and the second air path is also connected with an external air source through a second air pipe, and the air source is used to ventilate the M compression chambers through the second air path, so as to push the mounting body downward, drive the suction cup to descend to the avoidance low position, and the first spring is compressed and contracted; when the air source stops ventilating the compression chamber, the first spring loses pressure and rebounds, pushing the mounting body to rise and reset, so as to drive the suction cup to rise to the adsorption high position.

[0017] The second air circuit provided in the mounting plate uniformly implements the on / off control of the M cylinders provided below the mounting plate, so that the M cylinders cooperate with the corresponding M first springs to drive the corresponding suction cups to switch between the adsorption high position and the avoidance low position. Since the compression chambers of the M cylinders are all connected to the second air circuit, only one air pipe (i.e., the second air pipe) needs to be provided to connect the second air circuit and the external air source to realize the lifting and lowering control of all suction cups, which further simplifies the air circuit layout of the busbar carrier and also reduces the interference to the movement of the busbar carrier.

[0018] In some embodiments, a second connecting air channel connected to the first air channel is opened on the side wall of the cylinder body, and an annular air groove is provided between the first mounting portion and the inner wall of the cavity, and the annular air groove is used to always connect the second connecting air channel and the first connecting air channel during the lifting and lowering process of the mounting body.

[0019] By providing the second connecting air channel, the first air path and the first connecting air channel are connected; and by providing the annular air groove, it is ensured that the second connecting air channel and the first connecting air channel always remain connected during the lifting process of the installation body.

[0020] In some embodiments, a third connecting air passage connecting the second air path and the compression chamber is further provided on the side wall of the cylinder body, and the air source ventilates the compression chamber through the third connecting air passage.

[0021] By providing the third connecting air channel, the second air path and the compression chamber are connected, so that the air source can ventilate the compression chamber.

[0022] In some embodiments, two first sealing rings are provided at the contact point between the first mounting portion and the cavity, and the two first sealing rings are located at the upper and lower sides of the annular air groove; a second sealing ring is provided at the contact point between the second mounting portion and the transition hole.

[0023] By providing a first sealing ring at the contact point between the first mounting portion and the cavity, located at the upper and lower sides of the annular gas groove, air leakage at the annular gas groove is prevented, thereby ensuring the air extraction effect of the vacuum device on the M suction cup assemblies. By providing a second sealing ring at the contact point between the second mounting portion and the transition hole, the compression chamber is sealed to prevent the gas in the compression chamber from leaking into the mounting hole through the transition hole.

[0024] In some embodiments, the busbar support platform further includes a second joint disposed on the mounting plate, the second joint being in communication with the second gas path, and the second joint being used to connect to the gas source via the second gas pipe.

[0025] By providing the second joint, the connection between the second gas path and the second gas pipe connected to the gas source is achieved.

[0026] In some embodiments, the busbar carrier further includes a cooling mechanism, which is disposed on the mounting plate and is used to blow air into the gap between adjacent welding stations to cool the busbar from below.

[0027] By setting up a cooling mechanism, after the upper surface of the busbar is welded to the extended solder strip, the cooling mechanism can blow air to the bottom surface of the busbar for cooling, which can not only effectively shorten the cooling time and improve production capacity, but also the airflow will not blow to the unsolidified tin material between the busbar and the extended solder strip, thereby not causing adverse effects on the welding quality of the busbar and the extended solder strip, thereby ensuring the welding quality.

[0028] In some embodiments, the cooling mechanism includes a blowing block and a third joint; the blowing block is installed on the mounting plate and is located on the sides of N welding stations, a third air path extending along the first horizontal direction is formed in the blowing block, and a plurality of blowing ports are arranged side by side and spaced apart along the first horizontal direction on the blowing block, each of the blowing ports is connected to the third air path, and each of the blowing ports blows air toward the gap between two adjacent welding stations; the third joint is installed on the blowing block and connected to the third air path, the third joint is used to connect to an external blowing device via a third air pipe, and the blowing device is used to pass cooling gas into the third air path.

[0029] Air is blown toward the gap between adjacent welding stations through the air blowing ports on the air blowing block, thereby cooling the bottom surface of the busbar.

[0030] In some embodiments, a mounting groove is provided on the mounting plate corresponding to each soldering station, a second spring is provided in each mounting groove, the soldering station is installed in the corresponding mounting groove, and the lower end of the soldering station abuts against the corresponding second spring.

[0031] The soldering station is elastically mounted on the mounting plate through the second spring, so that the soldering station can float up and down relative to the mounting plate. In this way, it can be ensured that during the welding process, when the busbar is pressed, all the soldering stations can be closely attached to the bottom surface of the busbar, thereby ensuring that the busbar and each of the extended solder strips are in contact with each other, and preventing the occurrence of cold solder joints.

[0032] The present application also provides a busbar welding device, which includes a busbar carrier and a welding mechanism as described in any of the above items, wherein: the busbar carrier is used to carry the busbar and move the busbar to the bottom of the battery string, and allow the extended welding strip of the battery string to be stacked on the busbar; the welding mechanism is used to weld the upper surface of the busbar to the extended welding strip.

[0033] Through the cooperation of the busbar support platform and the welding mechanism, the busbar welding equipment provided in the present application realizes automatic welding of the extended welding strip at the end of the battery string and the busbar. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the main structure of the busbar carrier in the embodiment of the present application;

[0035] Figure 2 for Figure 1 AA section view;

[0036] Figure 3 for Figure 1 BB cross-sectional view;

[0037] Figure 4 A schematic diagram of a top view of the busbar carrier in an embodiment of the present application;

[0038] Figure 5 for Figure 4 CC section view;

[0039] Figures 1 to 5 Included:

[0040] Mounting plate 1:

[0041] A first gas path 11, a mounting hole 12, and a second gas path 13;

[0042] Soldering station 2;

[0043] Suction cup assembly 3:

[0044] Mounting body 31: a first mounting portion 311 and a second mounting portion 312;

[0045] Suction cup 32;

[0046] A first connecting airway 33;

[0047] First connector 4;

[0048] Lifting drive assembly 5:

[0049] Cylinder 51;

[0050] A first spring 52;

[0051] Cavity 53: compression chamber 531;

[0052] transition hole 54;

[0053] A second connecting airway 55;

[0054] annular air groove 56;

[0055] A third connecting airway 57;

[0056] A first sealing ring 58;

[0057] A second sealing ring 59;

[0058] A second connector 510;

[0059] Cooling mechanism 6:

[0060] Blowing block 61;

[0061] The third connector 62;

[0062] The third gas path 63;

[0063] Blowing port 64;

[0064] Second spring 7. DETAILED DESCRIPTION

[0065] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0066] like Figures 1 to 5 As shown, the busbar support provided in the embodiment of the present application includes a mounting plate 1, N soldering stations 2 and M suction cup assemblies 3, wherein:

[0067] N soldering platforms 2 are arranged on the mounting plate 1 along a first horizontal direction (such as the X-axis direction in the figure), and the N soldering platforms 2 are used to cooperate with and support the busbars extending along the first horizontal direction.

[0068] The M suction cup assemblies 3 are arranged on the mounting plate 1 along a first horizontal direction, and the M suction cup assemblies 3 are used to cooperate in sucking the bus bars carried on the N soldering stations 2 .

[0069] A first air path 11 extending along a first horizontal direction is provided in the mounting plate 1. The first air path 11 is connected to the M suction cup assemblies 3. The first air path 11 is also connected to an external vacuum pumping device via a first air pipe (not shown in the figure). The vacuum pumping device is used to evacuate the M suction cup assemblies 3 via the first air path 11 so that the M suction cup assemblies 3 adsorb the bus bar.

[0070] The optional working process of the busbar carrier in the embodiment of the present application is as follows:

[0071] First, the busbar to be welded is placed on the N welding platforms 2 along the first horizontal direction. Then, the vacuum device is controlled to evacuate the M suction cup assemblies 3 so that the M suction cup assemblies 3 absorb the busbar to fix the busbar on the N welding platforms 2.

[0072] Next, the busbar carrier moves the busbar to the bottom of the battery string, and the extended solder strip of the battery string is stacked on the busbar. The extended solder strip is then pressed onto the busbar, and the vacuum device is controlled to stop evacuating the M suction cup assemblies 3, so that the M suction cup assemblies 3 release the adsorption of the busbar.

[0073] Finally, the upper surface of the busbar is welded to the extended welding ribbon by a welding device.

[0074] The busbar support platform provided by the present application has M suction cup assemblies 3 on it which are uniformly connected to an external vacuum device by a first air path 11 provided in the mounting plate 1. By providing an air pipe, i.e., a first air pipe, between the first air path 11 and the vacuum device, the vacuum device can uniformly evacuate all suction cup assemblies 3 so that all suction cup assemblies 3 can adsorb the busbar at the same time. Since there is only one first air pipe, the air path layout of the busbar support platform is simplified, and the interference to the movement of the busbar support platform is also reduced.

[0075] The number N of soldering stations 2 is an integer ≥ 2, and the number M of suction cup assemblies 3 is an integer ≥ 1, for example, Figure 1 In the embodiment, the number of soldering stations 2 is 16, the number of suction cup assemblies 3 is 2, and the suction cup assemblies 3 are arranged between two adjacent soldering stations 2.

[0076] like Figure 3 As shown, optionally, the busbar support platform in the embodiment of the present application also includes a first connector 4 arranged on the mounting plate 1, the first connector 4 is connected to the first air path 11, the first connector 4 is used to connect the vacuum device through the first air pipe, and the vacuum device evacuates the first air path 11 through the first connector 4.

[0077] like Figure 2As shown, optionally, the mounting plate 1 is provided with mounting holes 12 that vertically penetrate the mounting plate 1 and correspond one-to-one with the suction cup assemblies 3. The suction cup assembly 3 includes a mounting body 31 and a suction cup 32. The upper end of the mounting body 31 is inserted into the mounting hole 12, and the suction cup 32 is mounted on the upper end of the mounting body 31. A first connecting air channel 33 connecting the first air path 11 and the suction cup 32 is opened in the mounting body 31. The vacuum device evacuates the suction cup 32 through the first air path 11 and the first connecting air channel 33, so that the suction cup 32 generates an adsorption force to adsorb the bus bar.

[0078] During the welding process, the temperature of the busbar is relatively high, and when it comes into direct contact with the suction cup, it will damage the suction cup. In order to prevent the high-temperature busbar from damaging the suction cup, it is usually necessary to control the suction cup to descend to a low avoidance position to avoid the busbar before welding the busbar. In order to control the lifting and lowering of the suction cup, the conventional solution is to configure a lifting drive cylinder for each suction cup, and the lifting drive cylinder drives the corresponding suction cup to lift and lower. This solution has the following disadvantages: First, each suction cup needs to be equipped with a separate lifting drive cylinder, which increases the driving cost. Second, each cylinder has an air inlet and outlet pipes, resulting in a large number of air pipes under the busbar carrier, which is easy to interfere with the movement of the busbar carrier.

[0079] In order to solve this problem, the busbar support platform in the embodiment of the present application optionally further includes a lifting drive assembly 5, which is used to synchronously drive the mounting bodies 31 of each suction cup assembly 3 to rise and fall, so as to drive the suction cups 32 on each mounting body 31 to switch between the adsorption high position and the avoidance low position. In this way, only a single lifting drive assembly is required to implement the synchronous lifting drive of all suction cups 32, thereby reducing the driving cost.

[0080] Before placing the busbar, the lifting drive assembly 5 drives the suction cup 32 to the high suction position through the mounting body 31. In this way, when the busbar is placed on the N welding stations 2, the suction cup 32 can contact or approach the busbar to implement suction and fixation of the busbar. Before welding the busbar, the lifting drive assembly 5 drives the suction cup 32 to the low avoidance position through the mounting body 31 to avoid the busbar and prevent the suction cup 32 from being damaged by the high-temperature busbar during the welding process.

[0081] like Figure 1 , Figure 2 and Figure 5As shown, optionally, the lifting drive assembly 5 includes M (such as two in the figure) cylinder bodies 51 and M first springs 52. Among them, a cylindrical cavity 53 is arranged inside the cylinder body 51, and a transition hole 54 connecting the cavity 53 and the mounting hole 12 is arranged at the upper end of the cylinder body 51, and the aperture of the transition hole 54 is smaller than the diameter of the cavity 53. The mounting body 31 includes a first mounting portion 311 and a second mounting portion 312, wherein the second mounting portion 312 passes upward through the transition hole 54 and enters the mounting hole 12, and the suction cup 32 is connected to the upper end of the second mounting portion 312. The M first mounting portions 311 are inserted into the cavities of the M cylinder bodies 41 one by one, and a first spring 52 is pressed between the bottom of each first mounting portion 311 and the cavity 53, and the portion of the cavity 53 located above the first mounting portion 311 forms a compression chamber 531.

[0082] A second gas path 13 extending along the first horizontal direction is also provided in the mounting plate 1. The second gas path 13 is connected to the M compression chambers 531. The second gas path 13 is also connected to an external gas source through a second gas pipe (not shown in the figure).

[0083] Since the compression chambers 531 of the M cylinder bodies 51 are all connected to the second air circuit, it is only necessary to connect the second air circuit and the external air source through an air pipe (i.e., the second air pipe) to achieve the lifting and lowering control of all the suction cups 32, thereby further simplifying the air circuit layout of the busbar carrier platform and reducing the interference to the movement of the busbar carrier platform.

[0084] The specific process of the lifting drive assembly 5 controlling the lifting of the suction cup 32 is as follows:

[0085] Before placing the busbar, the air source does not ventilate the compression chamber 531 of the M cylinder bodies 51, the first spring 52 is in an initial extension state, and the suction cup 32 is in an adsorption high position. In this way, when the busbar is placed on the N welding stations 2, the suction cup 32 can contact or approach the busbar to implement adsorption and fixation of the busbar.

[0086] Before welding the busbar, the gas source is controlled to ventilate the compression chambers 531 of the M cylinder bodies 51 through the second gas path 13. The pressure in the compression chamber 531 rises, thereby pushing the mounting body 31 downward, and then driving the suction cup 32 to descend to an avoidance low position to avoid the busbar and prevent the suction cup 32 from being damaged by the high-temperature busbar during the welding process.

[0087] After the welded busbar cools down or leaves the welding station 2, the air source is controlled to stop ventilation, the pressure in the compression chamber 531 drops, and the first spring 52 rebounds after losing pressure, thereby pushing the mounting body 31 to rise and reset, driving the suction cup 32 to rise to the adsorption high position again.

[0088] like Figure 2As shown, optionally, a second connecting air channel 55 communicating with the first air path 11 is provided on the side wall of the cylinder body 51, and an annular air groove 56 is provided between the first mounting portion 311 and the inner wall of the cavity 53. By setting the width of the annular air groove 56 in the vertical direction, it can be achieved that: during the lifting process of the mounting body 31, the opening of the second connecting air channel 55 toward the annular air groove 56 is always connected with the annular air groove 56, so that the second connecting air channel 55 and the first connecting air channel 33 remain connected, and finally ensure that the suction cup 32 maintains adsorption performance.

[0089] Optionally, a third connecting air passage 57 connecting the second air path 13 and the compression chamber 531 is further provided on the side wall of the cylinder body 51 , and the air source ventilates the compression chamber 531 through the third connecting air passage 57 .

[0090] That is, by providing the third connecting air channel 57 , the connection between the second air path 13 and the compression chamber 531 is achieved, so that the air source can realize ventilation of the compression chamber 531 .

[0091] Continue to refer Figure 2 As shown, optionally, two first sealing rings 58 are provided at the contact point between the first mounting portion 311 and the cavity 53, and the two first sealing rings 58 are located on the upper and lower sides of the annular air groove 56. Such a setting can prevent air leakage in the annular air groove 56 and ensure the vacuuming effect of the vacuum device on the M suction cup assemblies 3.

[0092] In addition, a second sealing ring 59 is provided at the contact point between the second mounting portion 312 and the transition hole 54. The second sealing ring 59 seals the compression chamber 531, preventing the gas in the compression chamber 531 from leaking into the mounting hole 12 through the transition hole 54, and ultimately ensuring that when the gas source ventilates the compression chamber 531, the pressure in the compression chamber 531 can rise rapidly.

[0093] like Figure 3 As shown, the busbar support platform in the embodiment of the present application further includes a second connector 510 disposed on the mounting plate 1 , the second connector 510 is connected to the second gas path 13 , and the second connector 510 is used to connect to the gas source via the second gas pipe.

[0094] At present, heating welding is usually used to melt the tin between the busbar and the long solder strip and then cool and solidify to achieve the connection between the two. The welding heating time is short, only 1-2 seconds, but the cooling time after welding is long, which may take 3-5 seconds or even longer. Only after cooling can the next welding be carried out, which seriously affects the production capacity.

[0095] To solve this problem, optional, such as Figure 1As shown, the busbar carrier in the embodiment of the present application further includes a cooling mechanism 6, which is disposed on the mounting plate 1. After the upper surface of the busbar is welded to the extended solder strip or during welding, the cooling mechanism 6 blows air into the gap between adjacent soldering stations 2, thereby cooling the bottom surface of the busbar. In this way, not only can the cooling time be effectively shortened and the production capacity be improved, but the airflow will not blow to the unsolidified tin between the busbar and the extended solder strip, thereby not causing adverse effects on the welding quality of the busbar and the extended solder strip, thereby ensuring the welding quality.

[0096] like Figures 1 to 3 As shown, optionally, the cooling mechanism 6 includes a blowing block 61 and a third joint 62. The blowing block 61 is mounted on the mounting plate 1 and is located on the side of the N welding stations 2. A third air path 63 extending along the first horizontal direction is formed in the blowing block 61. A plurality of blowing ports 64 are arranged side by side and spaced along the first horizontal direction on the blowing block 61. Each blowing port 64 is connected to the third air path 63, and each blowing port 64 blows toward the gap between two adjacent welding stations 2. The third joint 62 is mounted on the blowing block 61 and is connected to the third air path 63. The third joint 62 is used to connect to an external blowing device via a third air pipe (not shown in the figure), and the blowing device is used to pass cooling gas into the third air path 63.

[0097] like Figures 4 to 5 As shown, optionally, a mounting groove is provided on the mounting plate 1 corresponding to each soldering station 2 , and a second spring 7 is provided in each mounting groove. The soldering station 2 is installed in the corresponding mounting groove, and the lower end of the soldering station 2 abuts against the corresponding second spring 7 .

[0098] The soldering station 2 is elastically mounted on the mounting plate 1 through the second spring 7, so that the soldering station 2 can float up and down relative to the mounting plate 1. This ensures that during the welding process, when the busbar is pressed, the height of each soldering station 2 can be adaptively adjusted, and finally all the soldering stations 2 can be closely attached to the bottom surface of the busbar, thereby ensuring that the busbar and each long solder strip are in contact, and preventing the occurrence of cold solder joints.

[0099] The embodiment of the present application also provides a busbar welding device, which includes the busbar support platform and welding mechanism described in any of the above embodiments, wherein: the busbar support platform is used to support the busbar, and move the busbar to the bottom of the battery string, and make the extended welding strip of the battery string overlap on the busbar. The welding mechanism is used to weld the upper surface of the busbar to the extended welding strip. Through the cooperation of the busbar support platform and the welding mechanism, the busbar welding device provided by the present application realizes the automatic welding of the extended welding strip and the busbar.

[0100] The above description of the utility model is sufficiently detailed and has certain particularities. Those skilled in the art should understand that the description in the embodiments is merely exemplary, and all changes made without departing from the true spirit and scope of the utility model should fall within the scope of protection of the utility model. The scope of protection claimed by the utility model is defined by the claims, not by the above description in the embodiments.

Claims

1. A busbar carrier, characterized in that: The busbar carrier includes a mounting plate, N soldering stations and M suction cup assemblies, wherein: N of the welding platforms are arranged on the mounting plate along a first horizontal direction, and the N of the welding platforms are used to cooperate with and support a bus bar extending along the first horizontal direction; The M suction cup assemblies are arranged on the mounting plate along the first horizontal direction, and the M suction cup assemblies are used to cooperate with the bus bars carried on the N welding stations to be adsorbed; A first air path extending along the first horizontal direction is provided in the mounting plate, the first air path is connected to the M suction cup assemblies, and the first air path is also connected to an external vacuum pumping device through a first air pipe, and the vacuum pumping device is used to evacuate air from the M suction cup assemblies through the first air path so that the M suction cup assemblies adsorb the bus bar.

2. The busbar carrier according to claim 1, characterized in that: The busbar support platform also includes a first joint arranged on the mounting plate, the first joint is connected to the first air path, the first joint is used to connect the vacuum device via the first air pipe, and the vacuum device evacuates the first air path via the first joint.

3. The busbar carrier according to claim 1, characterized in that: The mounting plate is provided with vertically penetrating mounting holes corresponding to the suction cup assemblies one by one; The suction cup assembly comprises a mounting body and a suction cup, the upper end of the mounting body is inserted into the mounting hole, and the suction cup is mounted on the upper end of the mounting body; A first connecting air passage connecting the first air path and the suction cup is provided in the installation body, and the vacuum device evacuates air from the suction cup through the first air path and the first connecting air passage, so that the suction cup generates an adsorption force for adsorbing the bus bar.

4. The busbar carrier according to claim 3, characterized in that: The busbar bearing platform further comprises a lifting drive assembly, and the lifting drive assembly is used to drive each of the installation bodies to lift and lower, so as to drive the suction cups on each of the installation bodies to switch between a suction high position and a avoidance low position.

5. The busbar carrier according to claim 4, characterized in that: The lifting drive assembly includes M cylinders and M first springs, the cylinder is provided with a cylindrical cavity inside, the upper end of the cylinder is provided with a transition hole connecting the cavity and the mounting hole, and the aperture of the transition hole is smaller than the diameter of the cavity; The mounting body comprises a first mounting portion and a second mounting portion, wherein the second mounting portion passes upward through the transition hole into the mounting hole, and the suction cup is connected to the upper end of the second mounting portion; the M first mounting portions are inserted into the cavities of the M cylinder bodies in a one-to-one correspondence, a first spring is pressed between the bottom of each first mounting portion and the cavity, and the portion of the cavity located above the first mounting portion forms a compression chamber; A second air path extending along the first horizontal direction is further provided in the mounting plate, the second air path being in communication with the M compression chambers, and the second air path being in communication with an external air source through a second air pipe, the air source being used to ventilate the M compression chambers through the second air path, so as to push the mounting body downward, drive the suction cup to descend to the avoidance low position, and the first spring is compressed and contracted; When the air source stops ventilating the compression chamber, the first spring loses pressure and rebounds, pushing the mounting body to rise and reset, thereby driving the suction cup to rise to the adsorption high position.

6. The busbar carrier according to claim 5, characterized in that: A second connecting air channel connected to the first air path is provided on the side wall of the cylinder body, and an annular air groove is provided between the first mounting portion and the inner wall of the cavity, and the annular air groove is used to always connect the second connecting air channel and the first connecting air channel during the lifting and lowering process of the mounting body.

7. The busbar carrier according to claim 5, characterized in that: A third connecting air passage connecting the second air path and the compression chamber is also provided on the side wall of the cylinder body, and the air source ventilates the compression chamber through the third connecting air passage.

8. The busbar carrier according to claim 6, characterized in that: Two first sealing rings are arranged at the contact point between the first mounting portion and the cavity, and the two first sealing rings are located at the upper and lower sides of the annular air groove; A second sealing ring is provided at the contact point between the second mounting portion and the transition hole.

9. The busbar carrier according to claim 5, characterized in that: The busbar support platform further includes a second joint disposed on the mounting plate, the second joint being in communication with the second gas path, and the second joint being used to connect to the gas source via the second gas pipe.

10. The busbar carrier according to claim 1, characterized in that: The busbar carrier also includes a cooling mechanism, which is disposed on the mounting plate and is used to blow air into the gap between adjacent welding stations to cool the busbar from below.

11. The busbar carrier according to claim 10, characterized in that: The cooling mechanism comprises a blowing block and a third joint; The air blowing block is mounted on the mounting plate and is located on the side of the N soldering stations, a third air path extending along the first horizontal direction is formed in the air blowing block, a plurality of air blowing ports are arranged side by side and spaced apart along the first horizontal direction on the air blowing block, each of the air blowing ports is connected to the third air path, and each of the air blowing ports blows air toward the gap between two adjacent soldering stations; The third joint is installed on the blowing block and communicated with the third air path. The third joint is used to connect to an external blowing device via a third air pipe. The blowing device is used to pass cooling gas into the third air path.

12. The busbar carrier according to claim 1, characterized in that: The mounting plate is provided with a mounting groove corresponding to each of the soldering stations, each of the mounting grooves is provided with a second spring, the soldering station is installed in the corresponding mounting groove, and the lower end of the soldering station abuts against the corresponding second spring.

13. A busbar welding device, characterized in that: The busbar welding equipment comprises the busbar support platform and the welding mechanism according to any one of claims 1 to 12, wherein: The busbar carrier is used to carry the busbar and move the busbar to the bottom of the battery string, so that the extended welding strip of the battery string is stacked on the busbar; The welding mechanism is used to weld the upper surface of the bus bar to the extended welding strip.

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