Welding bottom plate assembly, welding conveying device and photovoltaic cell production equipment

Abstract

The utility model relates to a welding bottom plate assembly, a welding conveying device and photovoltaic cell production equipment. The welding bottom plate assembly comprises a welding base plate, an electromagnet assembly and a control module. A plurality of adsorption holes are formed in the welding base plate, are used for adsorbing a to-be-welded assembly and can be connected with a negative pressure power source; the electromagnet assembly is arranged on the welding base plate and can attract an assembly to be welded under the electrified condition. The control module is connected with the electromagnet assembly and used for controlling the working state of the electromagnet assembly. According to the welding bottom plate assembly, the position precision of the assembly to be welded in the conveying process can be improved, and then the welding quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery production equipment technology, and more specifically, to a welding base plate assembly, a welding conveying device, and photovoltaic cell production equipment. Background Technology

[0002] Photovoltaic cells are composed of multiple cells connected in series by welding ribbons, with the cells and ribbons arranged in an alternating vertical order. In existing welding methods, during continuous welding, the cells, ribbons, and mesh are transported forward in a step-by-step manner through the welding platform. As a result, relative displacement deviations occur between the cells, mesh, and ribbons during their movement, leading to reduced welding quality and increased welding costs. Utility Model Content

[0003] One objective of this invention is to provide a welding base plate assembly, a welding conveying device, and photovoltaic cell production equipment.

[0004] According to one aspect of the present invention, a welded base plate assembly is provided for supporting a conveyor belt with through holes, comprising:

[0005] A welding substrate, wherein the welding substrate is provided with a plurality of adsorption holes, the plurality of adsorption holes being used to adsorb the components to be welded and being able to be connected to a negative pressure power source;

[0006] An electromagnet assembly is disposed on the welding substrate and is capable of attracting components to be welded when energized.

[0007] A control module is connected to the electromagnet assembly and is used to control the working state of the electromagnet assembly.

[0008] Optionally, the electromagnet assembly includes multiple electromagnets, which are respectively disposed on the upper surface of the welding substrate and avoid each of the adsorption holes.

[0009] Optionally, it further includes: a sensor assembly, which is connected to the control module and is used to detect the position parameters or size parameters of the component to be welded, wherein the control module can control the working state of the electromagnet assembly according to the position parameters or size parameters.

[0010] Optionally, the sensor assembly includes two sets of through-beam regional laser sensors, which are respectively disposed at both ends of the welding substrate and are located at the same height relative to the welding substrate.

[0011] The two sets of through-beam regional laser sensors are used to detect the position parameters of the component to be welded at a set height. The control module can control the energization and de-energization of the electromagnet component, as well as the magnitude of the current when energized, according to the position parameters.

[0012] Optionally, the upper surface of the welding substrate is provided with a plurality of intersecting adsorption grooves, and the plurality of adsorption grooves are respectively connected to the plurality of adsorption holes.

[0013] Optionally, it further includes a heating component and a heat dissipation component, wherein the heating component and the heat dissipation component are respectively disposed on the welding substrate, the heating component is used to heat the welding substrate, and the heat dissipation component is used to dissipate heat from the welding substrate.

[0014] Optionally, it further includes: a temperature sensor, wherein the welding substrate is further provided with a temperature control cavity, and the heating component, the heat dissipation component and the temperature sensor are all disposed in the temperature control cavity;

[0015] The temperature sensor is used to detect the temperature parameters of the welding substrate. The heating component, the heat dissipation component, and the temperature sensor are respectively connected to the control module, so that the control module can control the working state of the heating component and the heat dissipation component according to the temperature parameters.

[0016] According to a second aspect of the present invention, a welding conveying device is provided, comprising:

[0017] Drive components, transmission components, and multiple welding base plate assemblies as described in the first aspect;

[0018] The transmission assembly includes a conveyor belt with multiple through holes, the conveyor belt being used to transport the components to be welded, and the driving component being used to drive the conveyor belt to move along a set direction;

[0019] Multiple welding base plate assemblies are sequentially arranged below the conveyor belt along the moving direction of the conveyor belt, and can adsorb the components to be welded on the conveyor belt through multiple through holes.

[0020] Optionally, the component to be welded includes a pressure mesh, a welding strip, and a battery cell. The electromagnet assembly is capable of attracting the pressure mesh when energized, and the pressure mesh is configured to press the welding strip and the battery cell together.

[0021] According to a third aspect of this utility model, a photovoltaic cell production device is provided, comprising:

[0022] The welding apparatus and the welding conveying apparatus described in the second aspect, the welding apparatus being used to weld components on the conveyor belt.

[0023] One technical advantage of this utility model is:

[0024] This invention, by setting adsorption holes and an electromagnet assembly on the welding substrate, enables the welding base plate assembly to adsorb the components to be welded on the conveyor belt after connecting to a negative pressure power source through the adsorption holes, and to adsorb the components to be welded through the magnetic force generated by the energized electromagnet assembly. This improves the adsorption force of the welding base plate assembly on the components to be welded, reduces the risk of relative displacement between the components to be welded, ensures the positional accuracy between the components to be welded, improves the welding quality of the components to be welded during the welding process, and reduces welding costs.

[0025] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0026] The accompanying drawings, which form part of this specification, illustrate embodiments of the present invention and, together with the specification, serve to explain the principles of the present invention.

[0027] Figure 1 This is a schematic diagram of the structure of a welding conveyor device provided by this utility model (conveyor belt not shown).

[0028] Figure 2 yes Figure 1 Top view.

[0029] Figure 3 yes Figure 1 Side view.

[0030] Figure 4 This is a schematic diagram of the upper surface structure of the welding substrate provided in this application. Figure 2 (Enlarged view of a portion of point A in the middle).

[0031] 1. Welding substrate; 2. Negative pressure power source; 3. Electromagnet assembly; 4. Through-beam area laser sensor; 5. Heating assembly; 6. Heat dissipation assembly; 7. Drive component; 8. Transmission assembly; 9. Welding station; 10. Temperature sensor; 11. Adsorption hole; 12. Adsorption tank. Detailed Implementation

[0032] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0033] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0034] Technologies and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such technologies and equipment should be considered part of the specification.

[0035] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0037] like Figures 1 to 4 As shown, according to one aspect of this utility model, a welding base plate assembly is provided for supporting a conveyor belt with through holes, comprising: a welding base plate 1, an electromagnet assembly 3, and a control module; the welding base plate 1 is provided with a plurality of adsorption holes 11 for adsorbing components to be welded, and can be connected to a negative pressure power source 2; the electromagnet assembly 3 is disposed on the welding base plate 1, and the electromagnet assembly 3 can adsorb components to be welded when energized; the control module is connected to the electromagnet assembly 3, and the control module is used to control the working state of the electromagnet assembly 3. The working state of the electromagnet includes an energized state, an de-energized state, and the magnitude of the energized current when applied to different components to be welded (the greater the current, the stronger the electromagnetic adsorption force).

[0038] Specifically, in this embodiment, the welding base plate assembly is positioned below the conveyor belt to support it. In photovoltaic cell production, the conveyor belt is typically used to transport the cell modules to be welded to welding station 9, enabling multiple cells to be connected in series and welded into a cell string via welding ribbons. The module to be welded is the cell module, which includes a pressure mesh, welding ribbons, and cells. When the cell module is transported by the conveyor device, the pressure mesh, welding ribbons, and cells are stacked sequentially from top to bottom.

[0039] The welding base plate assembly provided in this application can be configured with multiple sets located below the conveyor belt with through holes. In practical applications, the multiple adsorption holes 11 provided on the welding substrate 1 can be connected to the external negative pressure power source 2, so that the adsorption holes 11 generate a negative pressure adsorption force on the upper part of the welding substrate 1. At the same time, based on the through holes provided on the conveyor belt, the negative pressure adsorption force can adsorb the components to be welded on the conveyor belt through the through holes, so as to avoid the components to be welded from shifting their positions relative to each other during the conveying process, and also to ensure the relative positional relationship between the components to be welded and the conveyor belt.

[0040] Furthermore, in the above embodiments, the welding base plate assembly also includes an electromagnet assembly 3 and a control module. The electromagnet assembly 3 is disposed on the welding base plate 1 and is electrically connected to the control module. When a component to be welded is being transported on the conveyor belt, the electromagnet assembly 3 can be energized to generate a magnetic attraction force, further attracting the component to be welded and ensuring the accuracy of the positional relationship between the component to be welded and the conveyor belt. When there is no component to be welded on the conveyor belt, the control module can de-energize the electromagnet assembly 3 to reduce costs and also prevent the device from affecting other components when not in operation.

[0041] The position of the electromagnet component 3 on the welding substrate 1 should avoid the adsorption hole 11 to avoid affecting the negative pressure adsorption effect.

[0042] In practical applications, the control module can also be connected to the negative pressure power source 2 to control the simultaneous operation or simultaneous de-energization of the negative pressure power source 2 and the electromagnet assembly 3, thereby improving the accuracy of equipment control. Through the combined forces of negative pressure adsorption and electromagnetic adsorption, when the welding base plate assembly is applied to a conveyor belt with through holes, the accuracy of the relative position of the assembly to be welded, both internally and with the conveyor belt, is improved, thus enhancing the welding quality and reducing welding costs. The negative pressure power source 2 can be a centrifugal fan or other power device capable of generating negative pressure.

[0043] It should be noted that in the above embodiments, the electromagnet assembly 3 is able to attract the component to be welded, indicating that the component to be welded in this device can be attracted by magnetic force. For example, when the component to be welded is a battery cell assembly, the magnetic force generated by the electromagnet assembly 3 can attract the uppermost pressure mesh structure, so that the entire battery cell assembly is firmly pressed onto the conveyor belt. In addition, an external structure that can be attracted by electromagnetic force can be pressed onto the component to be welded, so that the electromagnet assembly 3 fixes the position of the components to be welded relative to each other and relative to the conveyor belt by attracting the external structure. The specific design can be made according to actual needs, and this utility model does not limit it.

[0044] like Figure 2 and Figure 4 As shown, optionally, the electromagnet assembly 3 includes multiple electromagnets, which are respectively disposed on the upper surface of the welding substrate 1 and avoid each of the adsorption holes 11.

[0045] Specifically, in this embodiment, the electromagnet can be a single electromagnet or multiple electromagnets. When using multiple electromagnets, different electromagnets can be placed at different positions on the welding substrate 1 according to the adsorption requirements of the components to be welded, thereby improving the magnetic adsorption effect. In addition, placing the electromagnets away from each adsorption hole 11 can avoid affecting the negative pressure adsorption effect and ensure the overall adsorption effect of the welding base plate assembly.

[0046] Optionally, such as Figure 2 As shown, it also includes: a sensor assembly, which is connected to the control module and is used to detect the position parameters or size parameters of the component to be welded. The control module can control the working state of the electromagnet assembly 3 according to the position parameters or size parameters.

[0047] Specifically, the sensors are used to detect parameters of the components to be welded. In practical applications, position sensors, distance sensors, etc., can be used to detect the position or size parameters of the components to be welded, thereby confirming the model, position status, or presence of the components. These parameters can be acquired by the control module to control the working state of the electromagnet assembly 3 accordingly. For example, when the components to be welded are not present, the electromagnet assembly 3 can be de-energized. When the model of the components to be welded changes, or when a certain area of ​​the components to be welded warps, the control module can control the electromagnet to be energized or change the magnitude of the energizing current to control the magnitude of the electromagnetic force, thereby improving the automated control of the welding base plate assembly and reducing manual operation costs.

[0048] Optionally, such as Figure 2 As shown, the sensor assembly includes two sets of through-beam regional laser sensors 4, which are respectively disposed at both ends of the welding substrate 1 and are located at the same height relative to the welding substrate 1. The two sets of through-beam regional laser sensors 4 are used to detect the position parameters of the component to be welded at the set height. The control module can control the energization and de-energization of the electromagnet assembly 3, as well as the magnitude of the current when energized, according to the position parameters.

[0049] Specifically, the through-beam area laser sensor 4 is a laser-based sensor device that primarily relies on the interaction between a laser beam and a target object, such as reflection, scattering, or absorption, for measurement and detection. It typically consists of a transmitter and a receiver, detecting the presence, position, or shape of objects by emitting and receiving laser beams. Under normal conditions, a laser beam path is formed between the transmitter and receiver. If this path is blocked by an object, the receiver will not receive the signal, thus triggering an alarm or control device.

[0050] In this embodiment, by setting a set of through-beam regional laser sensors 4 at both ends of the welding substrate 1, the position of the first and last components to be welded is detected to confirm whether the components to be welded exist or whether their position is accurate, as well as whether the relative position of a certain component within the components to be welded is accurate. This allows the control module to adjust the magnitude of the current flowing through the electromagnet component 3 according to actual needs, so as to achieve the magnitude of the adsorption force on the components to be welded.

[0051] In one embodiment, the assembly to be welded includes a wire mesh welding strip and a battery cell arranged sequentially from top to bottom. The through-beam regional laser sensor 4 is positioned at the height of the welding strip, which can detect whether the welding strip is warped. If warping is found, the current flowing through the electromagnet assembly can be increased, allowing the electromagnet to further attract the wire mesh and flatten the warped edge of the welding strip onto the battery cell. This improves the subsequent welding quality of the battery cell assembly and avoids welding problems such as incomplete welding, warped welding strip ends, and exposed welding strip. The positions of the two sets of through-beam regional laser sensors 4 at both ends of the welding substrate 1 can be adapted to the specific model and size of the assembly to be welded.

[0052] Optionally, such as Figures 1 to 4 As shown, the upper surface of the welding substrate 1 is provided with multiple intersecting adsorption grooves 12, and the multiple adsorption grooves 12 are respectively connected to multiple adsorption holes 11.

[0053] Specifically, in this embodiment, by setting multiple adsorption grooves 12 on the upper surface of the substrate and communicating them with multiple adsorption holes 11, the negative pressure adsorption force generated by the negative pressure power source 2 can be evenly distributed to the upper surface of the welding substrate 1. This improves the uniformity of the adsorption of the component to be welded by the welding base plate assembly, avoids problems such as displacement of the component to be welded due to excessive adsorption force in some areas, and further ensures the welding quality. When the electromagnet assembly 3 is placed on the upper surface of the welding substrate 1, it must avoid both the adsorption holes 11 and the adsorption grooves 12.

[0054] Optionally, such as Figure 3 As shown, it also includes: a negative pressure power source 2, and the welding substrate 1 is also provided with an adsorption chamber, and multiple adsorption holes 11 are all connected to the adsorption chamber. The negative pressure power source 2 is connected to the multiple adsorption holes 11 through the adsorption chamber.

[0055] Specifically, in this embodiment, the negative pressure power source 2 is connected to each adsorption hole 11 through the adsorption chamber, so that the negative pressure adsorption force generated can be fully applied to adsorb the product to be welded, thereby improving the energy utilization rate of the adsorption force and reducing production costs. In practical applications, the shape and size of the adsorption chamber can be designed according to the equipment adaptability of the welding base plate assembly.

[0056] Optionally, such as Figure 2As shown, it also includes a heating component 5 and a heat dissipation component 6, which are respectively disposed on the welding substrate 1. The heating component 5 is used to heat the welding substrate 1, and the heat dissipation component 6 is used to dissipate heat from the welding substrate 1.

[0057] Specifically, in practical applications, preheating is usually required before the components to be welded are formally welded to improve welding quality. By setting a heating component 5 on the welding substrate 1, the components to be welded can be preheated during the transportation process before welding. When the preheating temperature reaches the set temperature requirement, welding can be performed, improving production efficiency. The heating component 5 can be implemented using a ceramic heating rod or other heating devices. The heating component 5 can be connected to a control module to improve the automation performance of the entire welding base plate assembly.

[0058] Furthermore, the heat dissipation component 6 enables the welding substrate 1 to cool down rapidly, allowing the device to quickly adapt to the preheating temperature requirements of different components to be welded, or to quickly cool down to a safe temperature after use, thus improving the applicability and safety of the device. The heat dissipation component 6 can be cooled by a fan or by setting up a medium flow channel to achieve air cooling or water cooling, etc., and this invention does not limit this. The heat dissipation component 6 may also include a heat spreader and heat sinks disposed on the welding substrate 1 to improve the heat dissipation efficiency of the welding substrate 1, thereby improving production efficiency.

[0059] Optionally, such as Figure 2 As shown, it also includes: a temperature sensor 10, and the welding substrate 1 is also provided with a temperature control cavity. The heating component 5, the heat dissipation component 6 and the temperature sensor 10 are all disposed in the temperature control cavity. The temperature sensor 10 is used to detect the temperature parameters of the welding substrate 1. The heating component 5, the heat dissipation component 6 and the temperature sensor 10 are respectively connected to the control module, so that the control module can control the working state of the heating component 5 and the heat dissipation component 6 according to the temperature parameters.

[0060] Specifically, in this embodiment, a temperature control cavity and a temperature sensor 10 are provided below the welding base plate. The temperature sensor 10 detects the temperature inside the temperature control cavity to reflect the temperature of the welding substrate 1. The control module can control the temperature of the welding substrate 1 in real time by controlling the working state of the heat dissipation component 6 and the heating component 5 based on the detection result of the temperature sensor 10, thereby improving the accuracy of temperature control of the welding substrate 1. The heating component 5 and the heat dissipation component 6 are both disposed inside the temperature control cavity to improve heating and heat dissipation efficiency. The temperature sensor 10 can be a thermocouple disposed on the welding substrate 1.

[0061] According to the second aspect of this utility model, as Figures 1 to 3As shown, a welding conveying device is provided, including: a driving member 7, a transmission assembly 8, and a plurality of welding base plate assemblies as in the first aspect; the transmission assembly 8 includes a conveyor belt having a plurality of through holes, the conveyor belt being used to convey the components to be welded, and the driving member 7 being used to drive the conveyor belt to move along a set direction; the plurality of welding base plate assemblies are sequentially arranged below the conveyor belt along the moving direction of the conveyor belt, and are capable of adsorbing the components to be welded on the conveyor belt through the plurality of through holes.

[0062] Specifically, in this embodiment, the drive unit 7 drives the conveyor belt to move along a set direction via transmission rollers. By sequentially arranging multiple welding base plate assemblies below the conveyor belt, the welding conveying device can provide a greater adsorption force to the components to be welded during the conveying process, thereby improving their positional accuracy and enhancing the welding quality when they are conveyed to the welding station 9. The welding station 9 can be located in the middle or downstream of the conveyor belt, allowing the components to be welded to be welded sequentially during the sequential conveying process. The welding station 9 is equipped with a corresponding welding device to perform the welding process.

[0063] Optionally, the components to be welded include a pressure mesh, welding strips, and battery cells. The electromagnet assembly 3 is capable of attracting the pressure mesh when energized, and the pressure mesh is configured to press the welding strips and battery cells together.

[0064] Specifically, in this embodiment, the pressure mesh can press the welding strip and the battery cells together. The pressure mesh, welding strip, and battery cells can be stacked sequentially from top to bottom. During transport, the dual adsorption effect of negative pressure and electromagnetic force improves the accuracy of the relative positions of the components and the entire assembly relative to the conveyor belt. Furthermore, the adsorption effect of the electromagnet assembly 3 on the pressure mesh allows the battery cell assembly to be compressed more compactly, preventing the welding strip from warping and improving the welding quality of the battery cell assembly.

[0065] According to a third aspect of the present invention, a photovoltaic cell production equipment is provided, comprising: a welding device and a welding conveying device according to the second aspect, wherein the welding device is used to weld components to be welded on a conveyor belt.

[0066] Specifically, in this embodiment, the photovoltaic cell production equipment includes a welding conveying device in the second aspect, which ensures the welding quality of the cell module (the module to be welded) during the welding process, thereby improving the yield of the produced photovoltaic cells and reducing the production cost.

[0067] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0068] While specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A welded base plate assembly for supporting a conveyor belt with through holes, characterized in that, include: A welding substrate, wherein the welding substrate is provided with a plurality of adsorption holes, the plurality of adsorption holes being used to adsorb the components to be welded and being able to be connected to a negative pressure power source; An electromagnet assembly is disposed on the welding substrate and is capable of attracting components to be welded when energized. A control module is connected to the electromagnet assembly and is used to control the working state of the electromagnet assembly.

2. The welding base plate assembly according to claim 1, characterized in that, The electromagnet assembly includes multiple electromagnets, which are respectively disposed on the upper surface of the welding substrate and avoid each of the adsorption holes.

3. The welding base plate assembly according to claim 1, characterized in that, Also includes: A sensor assembly is connected to the control module and is used to detect the position or size parameters of the component to be welded. The control module can control the working state of the electromagnet assembly based on the position or size parameters.

4. The welding base plate assembly according to claim 3, characterized in that, The sensor assembly includes two sets of through-beam regional laser sensors, which are respectively disposed at both ends of the welding substrate and are located at the same height relative to the welding substrate. The two sets of through-beam regional laser sensors are used to detect the position parameters of the component to be welded at a set height. The control module can control the energization and de-energization of the electromagnet component, as well as the magnitude of the current when energized, according to the position parameters.

5. The welding base plate assembly according to claim 1, characterized in that, The upper surface of the welding substrate is provided with multiple intersecting adsorption grooves, and the multiple adsorption grooves are respectively connected to the multiple adsorption holes.

6. The welding base plate assembly according to claim 1, characterized in that, Also includes: A heating component and a heat dissipation component are respectively disposed on the welding substrate. The heating component is used to heat the welding substrate, and the heat dissipation component is used to dissipate heat from the welding substrate.

7. The welding base plate assembly according to claim 6, characterized in that, Also includes: The temperature sensor, the welding substrate is also provided with a temperature control cavity, and the heating component, the heat dissipation component and the temperature sensor are all disposed in the temperature control cavity; The temperature sensor is used to detect the temperature parameters of the welding substrate. The heating component, the heat dissipation component, and the temperature sensor are respectively connected to the control module, so that the control module can control the working state of the heating component and the heat dissipation component according to the temperature parameters.

8. A welding conveying device, characterized in that, include: Drive components, transmission components, and multiple welding base plate assemblies as described in any one of claims 1-7; The transmission assembly includes a conveyor belt with multiple through holes, the conveyor belt being used to transport the components to be welded, and the driving component being used to drive the conveyor belt to move along a set direction; Multiple welding base plate assemblies are sequentially arranged below the conveyor belt along the moving direction of the conveyor belt, and can adsorb the components to be welded on the conveyor belt through multiple through holes.

9. The welding conveying device according to claim 8, characterized in that, The component to be welded includes a pressure mesh, a welding strip, and a battery cell. The electromagnet assembly is capable of attracting the pressure mesh when energized. The pressure mesh is configured to press the welding strip and the battery cell together.

10. A photovoltaic cell production equipment, characterized in that, include: The welding apparatus and the welding conveying apparatus according to claim 8 or 9, the welding apparatus being used to weld the components to be welded on the conveyor belt.

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