CN105172305B - The solar components laminater and its laminating method of a kind of many counterweights - Google Patents

Abstract

The invention provides a multi-weight solar module lamination device, comprising: a body, an upper cover, and the upper cover and the body seal and cooperate to form a cavity, and a solar laminate for laminating solar cell modules is arranged inside the upper cover, wherein, A lower chamber for accommodating solar cell components is formed between the solar laminate and the body, and an upper chamber is formed between the solar laminate and the upper cover; the solar module lamination device also includes a multi-weight pressing device for pressing the upper cover , the multi-weight pressing device is installed above the upper cover, including a pressing assembly, an X-axis motion assembly for driving the pressing assembly to move along the X-axis, and a Z-axis motion assembly for driving the pressing assembly to move along the Z-axis. The pressing assembly is installed on the Z-axis motion assembly, and the Z-axis motion assembly is installed on the X-axis motion assembly. A lamination method of the above solar module lamination device is also provided. The solar component laminating device of the present invention can effectively improve the bonding performance between solar cell components.

Description

A multi-weight solar module lamination device and lamination method thereof

technical field

The invention relates to the field of solar cell module manufacturing equipment, in particular to a multi-weight solar module lamination device and a lamination method thereof.

Background technique

With the increasing development and progress of the industrial field, the energy is becoming more and more tense, especially the non-renewable energy such as coal and oil is decreasing, and the application fields using the above-mentioned energy are impacted, for example: in the field of transportation, because of the rise in oil prices, This has caused contradictions at various levels, and the development and application of new energy sources has become more and more urgent. As a new renewable resource, solar energy has been extensively studied in recent years.

A solar cell module (also known as a "photovoltaic module") is a series and parallel connection of several single cells according to their electrical properties, and after packaging, they are combined into the smallest unit that can be used independently as a power source. Solar cell modules come in various sizes and shapes, and the structure of conventional solar cell modules is glass/EVA film/solar cell/EVA film/TPT backsheet material from top to bottom.

The manufacturing method of the above-mentioned solar cell module generally comprises the following steps:

1. Weld several solar cells together with the prepared interconnection strips;

2. Laminate glass, EVA, solar cell arrays, EVA, and TPT formed by series and parallel connections from bottom to top and put them into the solar module lamination device;

3. Use the vacuum lamination method to evacuate the upper and lower chambers of the lamination device, heat and pressurize the glass, EV film, solar cell array, EVA, and TPT, and take them out after forming.

4. Add a junction box and a power line to make a solar cell module.

In the manufacturing process of solar cell components, lamination is a very important process, which is related to the performance and service life of solar cell components. Therefore, high requirements are placed on the solar cell lamination device and its lamination method. However, Due to the lack of strict control of the heating, vacuum and pressurization pressure of the upper and lower chambers in the existing solar lamination device and its lamination method, there are cracks and air bubbles in the solar cell components produced, and the solar cell components poor binding performance.

Contents of the invention

The invention aims to solve the technical problems of air bubbles and poor bonding performance in the solar cell modules produced by the solar module lamination device and the lamination method thereof in the prior art.

The invention provides a multi-weight solar module lamination device, comprising: a body, an openable upper cover installed on the body, the upper cover is sealed and matched with the body to form a cavity, and the inner body of the upper cover A solar laminate for laminating solar cell components is provided, wherein a lower chamber for accommodating solar cell components is formed between the solar laminate and the body, and an upper chamber is formed between the solar laminate and the upper cover; the solar The component lamination device also includes a multi-weight pressing device for pressing the upper cover. The multi-weight pressing device is installed above the upper cover, and includes a pressing assembly and an X-axis for driving the pressing assembly to move along the X-axis. A moving component, a Z-axis moving component for driving the pressing component to move along the Z-axis, the pressing component is mounted on the Z-axis moving component, and the Z-axis moving component is mounted on the X-axis moving component.

The present invention also provides a lamination method of a multi-weight solar module lamination device, comprising the following steps:

S1. Put the solar cell module to be laminated into the lower chamber;

S2. Vacuuming: firstly evacuate the lower chamber, then simultaneously evacuate the upper and lower chambers;

S3. Mechanical lamination process: the multi-weight pressing device presses the upper cover, and then pressurizes the solar battery module in the lower chamber through the solar lamination module, and heats the lower chamber at the same time;

S4. Taking out the laminated solar battery module.

The solar module lamination device provided by the present invention realizes mechanical lamination of solar cell components by setting a multi-weight pressing device, and preferably also realizes pneumatic lamination of solar cell components by setting a vacuum device, thereby being able to The air bubbles between the solar cell components can be discharged smoothly, and the bonding performance between the laminated solar cell components is improved, and the solar component lamination device of the present invention is widely used, which is beneficial to the development of existing solar cells.

Description of drawings

Fig. 1 is a schematic diagram of a solar module laminating device provided by the present invention.

Fig. 2 is a schematic view of the upper cover of the solar module laminating device shown in Fig. 1 in an open state.

Fig. 3 is a schematic diagram of the upper cover of the solar module laminating device shown in Fig. 1 in a closed state.

Fig. 4 is a partial sectional view along the direction A-A of Fig. 2 .

Fig. 5 is a partial sectional view along the B-B direction of Fig. 3 .

FIG. 6 is a cross-sectional view of the upper cover shown in FIG. 4 .

Fig. 7 is a schematic diagram of the vacuum system of the solar module laminating device provided by the present invention.

Fig. 8 is a schematic perspective view of the weight pressing device of the solar module laminating device provided by the present invention.

FIG. 9 is a schematic front view of the weight pressing device shown in FIG. 8 .

FIG. 10 is a schematic side view of the weight pressing device shown in FIG. 8 .

FIG. 11 is a schematic perspective view of the pressing assembly shown in FIG. 8 .

FIG. 12 is a schematic perspective view of another angle of the pressing assembly shown in FIG. 11 .

Fig. 13 is a schematic perspective view of a portion of the pressing assembly shown in Fig. 11 with the fixing plate removed.

Fig. 14 is a schematic perspective view of a set of weight assemblies and a main pressing part shown in Fig. 11 .

FIG. 15 is an exploded schematic view of the main pressing member shown in FIG. 11 .

FIG. 16 is a schematic perspective view of the Y-axis guide of the pressing assembly shown in FIG. 11 .

FIG. 17 is a schematic perspective view of the X-axis guide of the pressing assembly shown in FIG. 11 .

FIG. 18 is an exploded schematic view of the auxiliary pressing part of the pressing assembly shown in FIG. 11 .

detailed description

The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

The purpose of the present invention is to overcome the shortcomings of air bubbles and poor bonding performance in the solar cell components produced by the existing solar component laminating device, and to provide a multi-weight solar component laminating device to realize the solar cell component Mechanical lamination and pneumatic lamination.

As shown in Figures 1-3, the multi-weight solar lamination device of the present invention includes: a lamination device body 1, an upper cover 2, and the upper cover 2 can be opened and installed on the body 1; The main body 1 is provided with a cylinder actuator 10 which is connected with the upper cover 2 and controls the upper cover 2 to open or close relative to the main body 1 .

Referring to Fig. 4 and Fig. 5, the upper cover 2 is sealed with the body 1 to form a cavity, and the upper cover 2 is provided with a solar laminate 4 for laminating solar cell modules, wherein the solar laminate 4 and the body 1 A lower chamber 6 for accommodating solar cell components is formed between them, and an upper chamber 5 is formed between the solar laminate 4 and the upper cover 2 .

Specifically, referring to FIG. 6, the upper cover 2 includes a first upper pressing plate 21 and a second upper pressing plate 22. An upper groove body 23 is arranged inside the first upper pressing plate 21, and an upper groove body 23 is arranged inside the second upper pressing plate 22. There is a lower tank body 24 passing through the second upper pressing plate 22; the solar laminate 4 is sealed and installed between the first upper pressing plate 21 and the second upper pressing plate 22, and the solar laminate 4 and the upper cover 2 form a The upper chamber 5. 2 and 5, the body 1 includes a bracket 11, a heating plate 12 installed on the bracket 11, and a lower pressing plate 13 installed above the heating plate 12 for placing solar cell components. The solar laminate 4 The lower chamber 6 is formed between the lower pressing plate 13 .

Referring to Fig. 2, the heating plate 12 is provided with an oil circuit 14 for heating the lower platen 13, the oil circuit 14 is connected to a thermal oil pump and is temperature controlled by a mold temperature machine (not shown), and the temperature of the heating plate 12 is controlled by the mold temperature machine. It is adjusted to room temperature -190° C.; since the lower pressing plate 13 is in contact with the heating plate 12 , the heat of the heating plate 12 can heat the solar laminate components in the lower chamber 6 through the upper pressing plate 13 . The heating plate 12 , the oil circuit 14 and the mold temperature controller can be realized by existing technology, and are mainly used for heating the solar battery module, and will not be repeated here.

In a preferred embodiment of the present invention, the multi-weight solar module lamination device also provides a vacuum system 3 for realizing vacuum control of the upper and lower chambers 5, 6, and cooperates with the solar laminate 4 to Realize the pneumatic lamination of solar cell components, the vacuum system 3 can adopt the vacuum system of the existing solar component lamination device, as shown in Figure 7, in a preferred embodiment, the vacuum system 3 includes , the vacuum pump 31 that the lower chamber 5,6 is evacuated, the upper and lower vacuum pipelines 51,61 (referring to Fig. 2,3) that are connected between the upper and lower chambers 5,6 and the vacuum pump 31. Wherein, the vacuum pump 31 of the present invention may be one or more. Specifically, the upper chamber 5 is provided with an upper vacuum pipeline 51, and the free end of the upper vacuum pipeline 51 is provided with an upper vacuum interface 59 (see Fig. 2 ), and is connected to the vacuum pump 31 through the upper vacuum interface 59, and the upper vacuum tube An upper chamber release valve 52 and an upper chamber vacuum valve 53 are installed on the road 51, the upper chamber vacuum valve 53 is used to vacuumize the upper chamber 5, and the upper chamber release valve 52 is used for introducing air into the upper chamber 5 , the upper chamber 5 is controlled by the combination of the upper chamber vacuum valve 53 and the upper chamber purge valve 52 to control its vacuum degree. The control device of the vacuum system 3 of the present invention is a controller 32, which is used to realize the automatic control of the vacuum system 3. The control circuit part can be realized by the existing technology, and the setting of each parameter can be completed according to the user's setting, so as to realize lamination. Process automation. An upper chamber vacuum gauge 54, an upper chamber vacuum pressure sensor 55, and an upper chamber vacuum solenoid valve 56 are also installed on the upper vacuum pipeline 51, and the upper chamber vacuum solenoid valve 56 is connected in series with the upper chamber purge valve 52 and combined As a whole, they together form the executive mechanism for deflation operation, which can control whether to deflate and the speed of deflation by adjusting the opening, closing and opening degree of the upper chamber vacuum solenoid valve 56, the upper chamber vacuum pressure sensor 55, the upper chamber vacuum solenoid valve 56 is electrically connected with the controller 32 to form a control system. The upper chamber vacuum pressure sensor 55 transmits the pressure signal of the upper chamber 5 to the controller 32, and the controller 32 controls the upper chamber vacuum solenoid valve 56 to open or close, thereby realizing Control of 5-stage deflation of the upper chamber. For example: when the user sets on the controller 32 to deflate the upper chamber 5 to a certain target value, the controller 32 controls the upper chamber vacuum solenoid valve 56 to open until the feedback of the upper chamber vacuum pressure sensor 55 is sent to the controller 32 When the pressure value reaches the target value, the controller 32 closes the upper chamber vacuum solenoid valve 56, and the deflation ends at this stage.

Similarly, the lower chamber 6 is provided with a lower vacuum pipeline 61, and the free end of the lower vacuum pipeline 61 is provided with a lower vacuum interface 69 (referring to FIG. 2 ), and is connected to the vacuum pump 31 through the lower vacuum interface 66 for use in the working process. The lower chamber 6 is evacuated, and the lower vacuum pipeline 61 is equipped with a lower chamber vent valve 62 and a lower chamber vacuum valve 63. The lower chamber vacuum valve 63 is used to vacuumize the lower chamber 6, and the lower chamber vent valve 62 It is used to introduce air into the lower chamber 6, and the vacuum degree of the lower chamber 6 is controlled by the combination of the lower chamber vacuum valve 63 and the lower chamber purge valve 62, and the lower chamber vacuum gauge 64 is also installed on the lower vacuum pipeline 61 , the lower chamber vacuum pressure sensor 65, the lower chamber vacuum solenoid valve 66, the lower chamber vacuum solenoid valve 66 is connected in series with the lower chamber deflation valve 62 and combined together to form an actuator for deflation operation, the lower chamber vacuum pressure Sensor 65, lower chamber vacuum electromagnetic valve 66 are electrically connected with controller 32, lower chamber vacuum pressure sensor 65 transmits the pressure signal of lower chamber 6 to controller 32, and controller 32 controls lower chamber vacuum electromagnetic valve 66 to open or Closed, so that the control of the lower chamber 6 deflation can be realized.

It is worth mentioning that the solar laminate 4 used in the present invention can be various elastic elements known to those skilled in the art, and needs to have certain heat resistance, for example, heat-resistant rubber can be used. The solar laminate 4 is arranged on the upper cover 2, and placed between the upper tank body 23 and the lower tank body 24 to form the upper chamber 5 and the lower chamber 6, when the air pressure of the upper chamber 5 is greater than the air pressure of the lower chamber 6 At this time, the solar laminated plate 4 is deformed, and a certain lamination pressure is generated on the solar cell module located in the lower chamber 6, thereby realizing the lamination of the solar cell module product. The usual thickness of the solar laminate 4 is 4-5 mm. In this embodiment, its shrinkage rate can reach 550% to 800%. The solar laminate 4 plays an important role in the whole lamination equipment, and the price is relatively expensive. It needs to be installed to a tight state during installation, otherwise, when vacuuming, the solar laminate 4 cannot completely press the solar cell module or the pressure is not strong enough, between the solar cell modules (especially the air bubbles in the EVA film) It cannot be fully extruded, and the bonding strength between the solar cell components (especially the EVA film and the glass plate) cannot meet the requirements.

The improvement of the present invention is that the multi-weight solar module lamination device also includes a multi-weight pressing device 100 to realize the mechanical lamination of solar cell modules. The multi-weight pressing device 100 of the present invention is installed on the upper cover 2, used to press the upper cover 2, the upper cover 2 is made of elastic material, when the upper cover 2 is pressed, the upper chamber 5 is compressed, so that the solar laminate 4 is deformed, and the lower chamber 6 Solar cell modules generate lamination stress. The multi-weight pressing device 100 can realize the pressing of different positions of the upper cover 2, and the pressing force can be adjusted, so that the force exerted on the solar cell module meets the requirements of the solar cell, and the multi-weight pressing device 100 can Pressing at different positions of the upper cover 2 facilitates extrusion of air bubbles in the solar cell module, and a solar cell module with better bonding strength can be obtained.

It is worth mentioning that the upper cover 2 used in the present invention needs various elastic elements known to those skilled in the art, and needs to have certain heat resistance, for example: heat-resistant rubber can be used. Therefore, when the multi-weight pressing device 100 presses the upper cover 2, the upper cover 2 is pressed down under force. Since the solar laminate 4 is arranged on the upper cover 2 and placed between the upper tank body 23 and the lower tank body 24 to form an upper Chamber 5 and lower chamber 6, when the air pressure in the upper chamber 5 is greater than the air pressure in the lower chamber 6, the solar laminate 4 will be deformed, and a certain lamination pressure will be generated on the solar cell module located in the lower chamber 6 , so as to realize the mechanical lamination of solar cell module products.

Specifically, as shown in Figures 8-10, the multi-weight pressing device 100 includes a pressing assembly 7, an X-axis movement assembly 8 for driving the pressing assembly 7 to move along the X axis, and an X-axis movement assembly 8 for driving the pressing assembly 7 to move along the X axis. The Z-axis motion assembly 9 that the pressing assembly 7 moves along the Z axis, the pressing assembly 7 is installed on the Z-axis motion assembly 9, and the Z-axis motion assembly 9 is installed on the X-axis motion assembly 8; the pressing The assembly 7 includes a mounting frame 71, an array weight assembly 70, and several main pressing members 72 for pressing the upper cover 2, the mounting frame 71 is installed on the Z-axis movement assembly 9, and the array weight assembly 70 is fixed On the mounting frame 71 , the plurality of main pressing members 72 are respectively arranged corresponding to and connected to the groups of weight assemblies 70 . The pressing assembly 7 can move along the X-axis direction and the Z-axis direction through the drive of the X-axis moving assembly 8 and the Z-axis moving assembly 9. The pressing assembly 7 moves along the X-axis direction to move to different positions of the upper cover 2. The pressing assembly 7 moves along the Z axis to press the upper cover 2, so that the upper cover 2 and the solar laminated assembly 4 can exert pressure on various positions of the solar cell assembly. The pressing assembly 7 includes an array of weight assemblies 70 and several main pressing members 72. The main pressing member 72 presses down the upper cover 2 under the drive of the Z-axis movement assembly. Due to the pressing force required by different solar cell assemblies Different, when the pressing force required by the solar cell assembly does not exceed the elastic force of the main pressing member 72, the main pressing member 72 elastically presses the upper cover 2 within the range of elastic force; when the pressing force required by the solar cell assembly exceeds the elastic force of the main pressing member 72, the main pressing member 72 is pressed against the weight assembly 70 upwards, then the weight assembly 70 works at this time, and an appropriate gravity can be applied to the main pressing member 72 through the weight assembly 70, so that the main pressing member 72 The upper cover 2 can be pressed with the pressing force required by the solar cell assembly, thereby exerting pressure on the solar cell assembly. The force of pressing the upper cover 2 can be effectively and automatically adjusted within a certain range, and the pressing accuracy is high, which can be applied to A variety of solar cell modules that require different pressing forces have a wide range of applications.

Specifically, as shown in FIGS. 8 to 10 , the Z-axis motion assembly 9 includes a Z-axis moving plate 91, at least one Z-axis guide rail 92 disposed on the Z-axis moving plate 91, a Z-axis driving belt 93, and A Z-axis drive motor 94 for driving the Z-axis drive belt 93 to circulate, wherein one or two Z-axis drive motors 94 are connected to one or both ends of the Z-axis drive belt 93. In this embodiment, the The Z-axis driving motor 94 is one, connected to one end of the Z-axis driving belt 93, the pressing assembly 7 is installed on the Z-axis guide rail 92, and connected with the Z-axis driving belt 93, driven by the Z-axis driving motor 94, pressing The assembly 7 is driven by the Z-axis drive belt 93 and slides along the Z-axis guide rail 92 . The pressing assembly 7 is driven to move along the Z axis by the Z-axis movement assembly 9, which can press the upper cover 2 downwards and move away from the upper cover 2 upwards, so that the pressing assembly 7 can press the upper cover 2, and the solar energy is further affected by the solar laminate 4. The battery pack is under pressure.

Similarly, as shown in FIGS. 8 to 10 , the X-axis motion assembly 8 includes an X-axis moving plate 81, at least one X-axis guide rail 82 disposed on the X-axis moving plate 81, an X-axis driving belt 83, and an X-axis driving belt 83 for An X-axis driving motor 84 that drives the X-axis driving belt 83 to circulate, wherein, there are one or two X-axis driving motors 84 connected to one or both ends of the X-axis driving belt 83. In this embodiment, the X The shaft drive motor 84 is one, connected to one end of the X-axis drive belt 83, the Z-axis motion assembly 9 and the pressing assembly 7 installed on the Z-axis motion assembly 9 are integrally installed on the X-axis guide rail 82, and are connected with the X-axis drive belt. 83, and driven by the X-axis drive motor 84, the Z-axis motion assembly 9 and the pressing assembly 7 are driven by the X-axis drive belt 83 and slide along the X-axis guide rail 82. The X-axis motion assembly 8 is used to drive the pressing assembly 7 to move along the X axis, so that the pressing assembly 7 can move to different positions of the upper cover 2, so that the pressing assembly 7 can press the different positions of the upper cover 2, thereby adjusting the solar cell. Pressure is applied at different positions of the components.

In a preferred embodiment of the present invention, as shown in FIGS. 8 to 15 , as mentioned above, the press assembly 7 includes a mounting frame 71 , a set of weight assemblies 70 , and several main presses for pressing the upper cover 2 72, the installation frame 71 is installed on the Z-axis motion assembly 9, the array weight assembly 70 is fixed on the installation frame 71, and the several main pressing members 72 are respectively fixedly connected with the array weight assembly 70 . In this embodiment, the pressing assembly 7 includes four sets of weight assemblies 70 and four main pressing members 72, which can press the upper cover 2 at the same time, thereby exerting pressure on the solar cell assembly. By setting the above-mentioned X-axis motion assembly 8 and Z-axis motion assembly 9, the pressing assembly 7 can be moved along the X-axis and Z-axis, and the position of the pressing assembly 7 in the X-axis and Z-axis directions can be adjusted. Further, the pressing assembly 7 includes an array The weight assembly 70 and several main pressing pieces 72 corresponding to and connected to the array of weight assemblies 70, the Z-axis movement assembly 9 can drive the pressing assembly 7 to approach the upper cover 2 as a whole, the main pressing piece 72 The upper cover 2 is pressed down under the drive of the Z-axis motion assembly 9. Since the pressing force required by different solar cell assemblies is different, when the pressing force required by the upper cover 2 does not exceed the elastic force of the main pressing member 72, the main The pressing part 72 elastically presses the upper cover 2 within the elastic force range. When the pressing force required by the solar cell assembly exceeds the elastic force of the main pressing part 72, the main pressing part 72 presses upward against the weight assembly 70, and the weight The weight assembly 70 works, and the weight assembly 70 can apply appropriate gravity to the main pressing member 72, so that the main pressing member 72 can press the upper cover 2 with the pressing force required by the solar cell assembly, for example: the solar cell assembly requires The pressing force may be different, and each solar cell module requires a certain pressing force, the pressing force is the strength required for bonding the components of the solar cell module together, those skilled in the art should understand that if the upper cover 2 is pressed If the pressing force is too small, the strength applied to the solar cell components is not enough, and the air bubbles between the solar cell components (especially the bubbles in the EVA film) cannot be completely squeezed out, and the solar cell components (especially the EVA film and the The bond strength of the glass plate) cannot meet the requirements. If the pressing force of the upper cover 2 is too large, on the one hand, the upper cover 2 may be damaged, and on the other hand, the solar cell module cannot be effectively pressed. In this embodiment, the main pressing member 72 presses down the upper cover 2 driven by the Z-axis motion assembly 9, and the main pressing member 72 can apply elastic force to the upper cover 2 within the elastic force range of its spring, when the upper cover 2. When the required pressing force exceeds the elastic force of the main pressing piece 72, the main pressing piece 72 will press upward against the weight assembly 70. At this time, the weight assembly 70 will work, and the weight assembly 70 can apply an appropriate gravity to the main pressing piece 70. The pressing part 72 enables the main pressing part 72 to press the upper cover 2 with the required pressing force of the solar cell module.

Specifically, in the first preferred embodiment of the present invention, as shown in FIGS. 11 to 14, the mounting frame 71 of the pressing assembly 7 includes a fixing plate 711, a fixing block 712 installed on the fixing plate 711, and The spacer 713 , the spacer 713 and the fixed block 712 are installed on the fixed plate 711 , the fixed block 712 is located at the lower end of the fixed plate 711 , and the spacer 713 is located above the fixed block 712 . The fixing plate 711 is fixed on the Z-axis moving assembly 9. In this embodiment, referring to FIG. 8, the fixing plate 711 is installed on the Z-axis moving assembly 9, thereby fixing the pressing assembly 7 on the Z-axis moving assembly as a whole. 9 on.

As shown in Figures 8 to 14, in this embodiment, each of the four sets of weight assemblies 70 includes a first weight assembly 701 and a second weight assembly 702, see Figures 13 to 14 15. The first weight assembly 701 respectively includes a first weight assembly guide rail 7011, a first weight slider 7012, a first weight mounting seat 7013 fixedly connected to the first weight slider 7012, and installed on The first weight 7014 on the first weight mounting base 7013, the first weight assembly guide rail 7011 is installed on the fixed plate 711, and the first weight slider 7012 is installed on the first weight assembly guide rail 7011 And move up and down along the guide rail 7011 of the first weight assembly. The main pressing member 72 is fixedly connected with the first weight mounting base 7013 of the first weight assembly 701 and located below the first weight 7014 . Similarly, referring to FIG. 13 and FIG. 14, the second weight assembly 702 includes a second weight assembly guide rail 7021, a second weight slider 7022, and a second weight fixedly connected to the second weight slider 7022. Code mounting base 7023, and the second weight 7024 installed on the second weight mounting base 7023, the second weight assembly guide rail 7021 is installed on the fixed plate 711, and the second weight slider 7022 is installed on The second weight assembly 702 moves up and down along the second weight assembly guide rail 7021 , the second weight assembly 702 is located above the first weight assembly 701 and forms a gap 703 with the first weight assembly 222 . It is worth mentioning that the second weight assembly 702 can be located directly above the first weight assembly 701, or can be staggered by a certain distance, but it is necessary to ensure that the first weight assembly 701 moves along the guide rail 7011 of the first weight assembly. When moving upward, it can lean against the second weight component 702 . In this embodiment, two spacers 713 are installed on the fixed plate 711, and a spacer 713 is connected between two adjacent groups of weight assemblies 70, and the spacer 713 is arranged on the first weight Between the assembly guide rail 7011 and the second weight assembly guide rail 7021, the installation of the first weight assembly guide rail 7011 and the second weight assembly guide rail 7021 is more stable. When the pressing force required by the solar cell assembly does not exceed the elastic force of the main pressing member 72, the main pressing member 72 elastically presses the upper cover 2 within the range of elastic force; when the pressing force required by the solar cell assembly exceeds the elastic force of the main pressing member 72 When the elastic force is applied, the main pressing member 72 presses upward against the first weight assembly 701, and the first weight assembly 701 works at this time. When the pressing force required by the solar cell assembly exceeds the main pressing member 72 and the first weight assembly When the weight of the assembly 701 is combined, the main pressing member 72 and the first weight assembly 701 move upward along the first weight assembly guide rail 7011 by the distance of the gap 703 and continue to press upward against the second weight assembly 702, then at this time The second weight assembly 702 functions.

As shown in Figures 13 to 15, specifically, the first weight 7014 and the second weight 7024 are used to counterweight the main pressing part 72, so that the main pressing part 72 can press the pressing force on the main pressing part 72 elastic force and the solar cell module within the gravitational range of the first weight 7014 and the second weight 7024, the first weight 7014 and the second weight 7024 are weights of a certain specification series, which can be It needs to be manufactured, and standard weights can also be used. In this embodiment, the first weight 7014 and the second weight 7024 are in the shape of a cuboid, which are convenient to be fixed on the first weight mounting seat 7013 and the second weight installation respectively. On the seat 7023, the first weight 7014 and the second weight 7024 are group weights in grams, and can also be weights in kilograms. The specifications of the weights are determined according to the solar cell components to be pressed. need to choose. The lengths of the first weight slider 7012 and the second weight slider 7022 are respectively shorter than the lengths of the first weight assembly guide rail 7011 and the second weight assembly guide rail 7021. The travel of the two weight sliders 7022 on the first weight assembly guide rail 7011 and the second weight assembly guide rail 7021 can be reasonably determined according to the structure of the pressing assembly and the solar cell assembly to be pressed. The cross section of the first weight mounting base 7013 and the second weight mounting base 7023 is L-shaped, the outer side is connected with the first weight slider 7012 and the second weight slider 7022, and the inner side is used for mounting The first weight 7014 and the second weight 7024, it can be understood that the first and second weight mounts are not limited to the structure of this embodiment, as long as the weight slider can be effectively connected to the structure of the weight installation All forms can be used in the present invention, for example, the weight mounting base and the weight slide block can also be integrally set.

Referring to Figure 1, Figure 14 and Figure 15, in the present invention, the main pressing member 72 is used to elastically press the upper cover 2, and the main pressing member 72 includes a threaded connection sleeve 721, a connecting rod 722, a spring 723 and a main pressing member 72. Press the head 724, the threaded connection sleeve 721 is threaded with the first weight mounting base 7013, in this embodiment, the threaded connection sleeve 721 includes a threaded connection part 725 and a sleeve arranged under the threaded connection part 725 barrel portion 726 . The connecting rod 722 is installed in the threaded sleeve 721 movable up and down, its upper end exposes the threaded sleeve 721, and its lower end exposes the threaded sleeve 721; the spring 723 is sleeved on the connecting On the rod 722, the upper end of the spring 723 is against the inner wall of the sleeve portion 726, and the lower end of the spring 723 is connected to the connecting rod 722. Lean on the steps 727. The main pressing head 724 is fixed on the lower end of the connecting rod. Through the main pressing member 72 of the above structure, when the Z-axis motion assembly 9 drives the pressing assembly 7 to press the upper cover 2 downward, the main pressing head 724 contacts the upper cover 2 and presses down, and the main pressing head 724 and the connecting rod 722 compress the spring upward. 723, at this time, the spring 723 exerts a spring force on the connecting rod 722 and the main pressing head 724; so that the main pressing member 72 can elastically press the solar cell module whose required pressing force is within the range of the elastic force. The spring can be selected and manufactured according to the needs of the pressed solar battery module, and has a certain range of travel and elastic force. It can be understood that the main pressing member 72 can also adopt the simplest structure, only including the connecting rod 722 and the main pressing head 724 can also realize the function of pressing the upper cover 2 . However, it is preferable to adopt the solution of this embodiment. By setting the spring 723 , elastic pressing can be realized, the upper cover 2 can be effectively protected, and damage that may be caused by hard pressing can be avoided. Moreover, since the elastic force of the spring 723 varies according to the degree of pressure, the main pressing member 72 can apply different pressing forces on the upper cover 2 within a certain range, and is suitable for applications that require different pressing forces. A variety of solar cell modules.

When the multi-weight pressing device of the present invention is working, the Z-axis motion component 9 drives the pressing component 7 to press the upper cover 2 downward. Under normal circumstances, when the pressing force required by the solar cell module does not exceed the elasticity of the main pressing member 72 When the force is applied, the main pressing member 72 elastically presses the upper cover 2 within the elastic force range, and when the pressing force required by the solar cell module exceeds the elastic force of the main pressing member 72, the main pressing member 72 presses upward against the first weight assembly 701, the first weight assembly 701 works at this time, and the first weight assembly 701 can apply appropriate gravity to the main pressing member 72, so that the main pressing member 72 can press the upper cover 2 with the pressing force required by the solar cell module . When the weight of the selected first weight 7014 is not enough, that is, when the pressing force required by the solar cell assembly is greater than the pressing force of the main pressing member 72 and the first weight 7014, the main pressing member 72 leans upward The first weight assembly 701 moves upward along the first weight assembly guide rail 7011 with a certain gap 703 together with the first weight assembly 701, and then leans against the second weight assembly 702, at this time the second weight assembly 702 works , by setting the first and second weight components, and the first and second weight components move along the guide rails of the first and second weight components, it can adapt to various solar cell components, and avoid the rigid pressing of the upper cover 2.

In the present invention, in order to make the force on the upper cover 2 more uniform, so as to exert pressure on the solar cell assembly more effectively. In a preferred situation, as shown in Figures 8 to 13 and Figures 16 to 18, the pressing assembly 7 of the present invention also includes an auxiliary cylinder 73, an auxiliary fixing frame 74 connected to the auxiliary air cylinder, and an auxiliary fixing frame 74 installed on the auxiliary fixing frame 74. array of auxiliary presses on the The auxiliary cylinder 73 includes an auxiliary cylinder body 731, an auxiliary cylinder shaft 732 extending out of the auxiliary cylinder body 731, and a drive block 733. The drive block 733 is fixedly connected and driven by the auxiliary cylinder shaft 732 to move up and down. In this embodiment, the auxiliary cylinder body 731 is fixed on the fixed plate 711 and located above the fixed block 712, and the auxiliary cylinder shaft 732 passes through the fixed block 712 and is fixedly connected with the drive block 733 located below the fixed block 712. The auxiliary holder 74 is fixedly connected with the driving block 733 of the auxiliary cylinder 73, thus, when the auxiliary cylinder 73 works, the auxiliary cylinder body 731 gives the auxiliary cylinder shaft 732 air pressure, and the auxiliary cylinder shaft 732 has a certain stroke, driving the auxiliary holder. 74 moves up and down, so that the auxiliary pressing member 75 installed on the auxiliary fixing frame 74 presses the upper cover 2 downward.

In this embodiment, referring to FIG. 18, the auxiliary pressing member 75 includes a sleeve 751, a connecting rod 752, a spring 753 and an auxiliary pressing head 754. The sleeve 751 is fixed on the auxiliary fixing frame 74, and the connecting rod 752 is installed in the sleeve 751 and exposes the lower end of the sleeve 751, the spring 753 is sleeved on the connecting rod 752 and located in the sleeve 751, in this embodiment, the spring The upper end of the spring 753 leans against the inner wall of the sleeve 751 , and the lower end of the spring 753 leans against the connecting rod 752 ; the auxiliary pressing head 754 is fixed on the lower end of the connecting rod 752 . Through the above structure, when the auxiliary cylinder shaft 732 drives the auxiliary fixing frame 74 and the auxiliary pressing member 75 to move downward, and the auxiliary pressing head 754 at the lower end of the connecting rod 752 presses the upper cover 2 and presses down, the auxiliary pressing head 754 and the connecting rod 752 move upward. The spring 753 is compressed, and the spring 753 exerts a spring force on the connecting rod 752 at this time; so that the auxiliary pressing member 75 can elastically press the upper cover 2 . The spring 753 can be selected and manufactured according to the requirements of the solar battery module, and has a certain range of travel and elastic force. It can be understood that the auxiliary pressing member 75 can also adopt the simplest structure, which only includes the connecting rod 752 and the auxiliary pressing head 754. The auxiliary pressing member 75 is driven downward by the auxiliary cylinder 73, and the upper cover 2 can also be pressed. function. However, it is preferable to adopt the solution of this embodiment. By setting the spring 753 , elastic pressing can be realized, the upper cover 2 can be effectively protected, and damage that may be caused by hard pressing can be avoided. Moreover, since the elastic force of the spring 753 varies according to the degree of pressure, the auxiliary pressing member 75 can apply different pressing forces on the upper cover 2 within a certain range, and is suitable for applications that require different pressing forces. Solar modules.

In addition, the auxiliary fixing frame 74 also includes a Y-axis guide 741 for adjusting the positions of the groups of auxiliary pressing members in the Y-axis direction and/or a guide member 741 for adjusting the positions of the groups of auxiliary pressing members in the X-axis direction. X-axis guide 742 . Referring to Fig. 16 and Fig. 17, in the first embodiment of the present invention, in order to adjust the positions of the groups of auxiliary pressing members in the Y-axis direction, the auxiliary fixing frame 74 includes a The Y-axis guide 741 for the position of the auxiliary pressing member, at least one X-axis guide 742 is installed on the Y-axis guide 741, and several auxiliary pressing members 75 are fixed on each X-axis guide 742, and the X-axis The number and structure of the guides 742 can be selected and set according to the parts of the solar cell assembly to be pressed. The X-axis guide includes the connecting block 746 for installing sets of auxiliary pressing parts. The connecting block 746 is provided with an X-axis guide groove 747. In this embodiment, the locking screw 756 passes through the connecting block The screw hole on 746 is threadedly connected with the threaded hole provided on the upper end of the sleeve 751 of the auxiliary pressing member 75 to fix the auxiliary pressing member 75 on the connecting block 746 . The Y-axis guide 741 enables the X-axis guide 742 and the array of auxiliary pressing members fixed on the X-axis guide 742 to adjust their positions along the Y-axis direction, so as to facilitate pressing different positions of different upper covers 2 for better Apply pressure to solar modules. As shown in FIG. 16 and FIG. 17 , the Y-axis guide 741 includes a guide block 743 and a Y-axis guide groove 744 disposed on the guide block 743 . In this embodiment, the guide block 743 is an H-shaped guide block 743 with two Y-axis guide grooves 744 disposed at its front end. The mounting frame 71 of the auxiliary pressing member also includes an adjustment member 740 that can move along the X-axis guide groove 747 and the Y-axis guide groove 744, and the adjustment member 740 is passed through the Y-axis guide groove 744 and the X-axis guide groove 747 and connect the guide block 743 with the connection block 746; by sliding the adjustment piece 740 along the Y-axis guide groove 744 and/or the X-axis guide groove, the connection block 746 connected with the adjustment piece 740 is along the X-axis and/or the Y-axis direction, so that the positions of the sets of auxiliary pressing members fixed on the connection block 746 in the X-axis and/or Y-axis directions can be adjusted. It can be understood that, as long as the structure of the Y-axis guide 741 for adjusting the positions of the groups of auxiliary pressing members in the Y-axis direction and the X-axis guide for adjusting the positions of the groups of auxiliary pressing members in the X-axis direction can be realized All can be used in the present invention, and are not limited to the above-mentioned way of setting the guide groove and the adjusting member 740, but the way of setting the guide groove and the adjusting member 740 is convenient for adjustment and simpler in structure, so that the structure of the auxiliary fixing frame 74 is more reasonable, easy to install and It is more convenient to disassemble.

In summary, firstly, the pressing assembly 7 includes a mounting frame 71, an array of weight assemblies 70, and several main pressing pieces 72 for pressing the upper cover 2, the mounting frame is installed on the Z-axis motion assembly, The Z-axis motion assembly 9 is installed on the X-axis motion assembly 8, the main pressing member 72 can be driven to move along the X-axis and the Z-axis direction through the X-axis motion assembly 8 and the Z-axis motion assembly 9, and the X-axis motion assembly 8 is used to drive the pressing The component 7 moves along the X axis to move to different positions of the upper cover 2; the upper cover 2 can be driven and pressed by the Z-axis movement component 9, so that various positions of the solar cell component can be pressed through the solar laminate 4. The main pressing member 72 presses down the upper cover 2 under the drive of the Z-axis motion assembly 9. Since the pressing force required by different solar cell assemblies is different, when the pressing force required by the solar cell assembly does not exceed the elastic force of the main pressing member , the main pressing member 72 elastically presses the upper cover 2 within the elastic force range, and when the pressing force required by the solar cell assembly exceeds the elastic force of the main pressing member 72, the weight assembly 70 works, and the weight assembly 70 can Appropriate gravity is applied to the main pressing member, so that the main pressing member 72 can press the upper cover 2 with the pressing force required by the solar cell module, and the force of pressing the upper cover 2 can be effectively and automatically adjusted within a certain range, and the pressing force It has high precision and can be applied to a variety of solar cell modules that require different pressing forces, and has a wide range of applications. Secondly, the pressing assembly 7 also includes an auxiliary fixing frame 74, an auxiliary cylinder 73, and an array of auxiliary pressing parts installed on the auxiliary fixing frame 74, the auxiliary pressing parts 75 are installed on the auxiliary fixing frame 74, and the auxiliary fixing frame 74 is installed on On the mounting frame 71, the auxiliary pressing member 75 can be driven to move along the X-axis and the Z-axis direction through the X-axis moving assembly 8 and the Z-axis moving assembly 9; The Y-axis guide 741 of the position of the group of auxiliary pressing parts and/or the X-axis guide 742 used to adjust the position of the group of auxiliary pressing parts in the X-axis direction; so that the auxiliary pressing part 75 can be adjusted according to the needs. The positions of the X-axis and the Y-axis are further adjusted to improve the accuracy of pressing. Again, the main pressing head 724 and the auxiliary pressing head 754 are made of colloid, which has a soft pressing surface and can effectively protect the upper cover 2 . And, since the main pressing member 72 and the auxiliary pressing member 75 adjust the pressing force of the main pressing head 724 and the auxiliary pressing head 754 through the weight assembly or the spring 753, the pressing force of the main pressing head 724 and the auxiliary pressing head 754 on the upper cover 2 has The cushioning force is adjustable, and can effectively protect the upper cover 2 .

In addition, the multi-weight pressing device 100 may also include a Y-axis motion assembly (not shown), the X-axis motion assembly 8 is mounted on the Y-axis motion assembly, and the Y-axis motion assembly is used to drive the pressing assembly to move along the Y-axis. The pressing range of the pressing assembly is wider, and it is more convenient to press different positions of the upper cover 2, thereby applying pressure to different positions of the solar cell assembly. The Y-axis motion assembly also includes a drive motor, a drive belt, and a guide rail, similar to the structure of the above-mentioned X-axis motion assembly 8 and Z-axis motion assembly 9. Those skilled in the art combine the principles of the present invention and the above-mentioned X-axis The motion assembly 8 and the Z-axis motion assembly 9 can realize the specific functions of the Y-axis motion assembly.

It can be understood that the pressing assembly 7, the X-axis motion assembly 8, the Z-axis motion assembly 9, and the Y-axis motion assembly of the multi-weight pressing device are all electrically connected to the central control processing unit, which are controlled by the central control processing unit. The work of the assembly, for example: in the multi-weight pressing device, the X-axis drive motor of the X-axis motion assembly 8, the Z-axis drive motor 94 of the Z-axis motion assembly 9, and the auxiliary cylinder 73 are electrically connected to the central control processing unit , the central control processing unit controls the actions of these components, thereby realizing the function of the multi-weight pressing device. The central control processing unit implements coordinated control of these components through software programs. It can be understood that existing software control programs can be used in the present invention as long as they can realize the control functions required by the present invention.

The above-mentioned solar module lamination device is used to realize the following lamination method. The lamination method of the solar module of the present invention is similar to the existing lamination method. The lamination method of the solar module lamination device of the present invention includes the following steps: Step 1. Put the solar cell module to be laminated into the lower chamber;

Step 2. Vacuuming: Close the vent valves of the upper and lower chambers, open the vacuum valves of the upper and lower chambers, first vacuum the lower chambers for 35S~40S, and then vacuumize the upper and lower chambers at the same time 6min～7min, observe the reading of the vacuum gauge until the vacuum degree required by the process is below, at this time, the vacuum degree of the lower chamber reaches -100Kpa; during the above vacuuming process, the lower chamber is exhausted to avoid the solar cell The components generate air bubbles and the upper chamber cooperates with the lower chamber during the venting phase to help vent the lower chamber.

Step 3. Mechanical lamination process: press the upper cover with a multi-weight pressing device, pressurize the solar battery module in the lower chamber through the solar lamination module, and heat the lower chamber at the same time; in this step Among them, the main pressing member 72 can adjust its position on the upper cover 2 under the drive of the X-axis driving assembly 8 according to the required pressing position of the solar cell assembly, and then the main pressing member 72 moves downwards under the driving of the Z-axis driving assembly 9. Press the top cover 2 down, because the pressing force required by different solar cell modules is different, when the pressing force required by the solar cell module does not exceed the elastic force of the main pressing part, the main pressing part 72 elastically presses the upper part within the elastic force range. Cover 2, when the pressing force required by the solar cell assembly exceeds the elastic force of the main pressing piece 72, the weight assembly 70 will work, and the weight assembly 70 can apply an appropriate gravity to the main pressing piece 72, so that the main pressing piece 72 can press the upper cover 2 with the pressing force required by the solar cell module, and the force of pressing the upper cover 2 can be effectively and automatically adjusted within a certain range, so that the air bubbles between the solar cell modules can be discharged smoothly, and the layer can be improved. The bonding performance between the pressed solar cell components; in a preferred situation, in order to make the force of the upper cover 2 more uniform, thereby more effectively pressurizing the solar cell components, the auxiliary cylinder shaft 732 drives the auxiliary fixing frame 74 , downward movement, so that the auxiliary pressing member 75 installed on the auxiliary fixing frame 74 presses the upper cover 2 downward, and presses the upper cover 2 together with the main pressing member 72, which can better press the upper cover 2, so that the solar cell module The air bubbles can be discharged smoothly, improving the bonding performance between the laminated solar cell modules.

In a preferred embodiment of the present invention, it also includes a pneumatic lamination process: close the vacuum valve of the upper chamber, open the deflation valve of the upper chamber, and the upper chamber enters an inflated state; adjust the deflation valve of the upper chamber, Observe the vacuum indication number of the upper chamber, close the vent valve of the upper chamber after reaching the lamination pressure; keep the vacuum through the lower chamber, deflate the upper chamber, pressurize the solar cell modules in the lower chamber, and at the same time The lower chamber is heated, and the temperature of the lower chamber is kept at a constant temperature of 140°C for a certain lamination time, and the solar cell modules are combined by heating and pressurizing.

The pneumatic lamination process of the present invention preferably adopts segmented lamination. Specifically, during the lamination process, the upper chamber is continuously kept in vacuum, and the deflation process of the upper chamber is a staged deflation: 1) Exhaust stage: deflate the upper chamber to the exhaust pressure and maintain the exhaust pressure for a period of time, and discharge the air bubbles between the solar cell modules; 2) pre-press stage: continue to deflate the upper chamber to the pre-press Press the pressure and maintain the pre-compression pressure for a period of time to pre-compress the solar cell module; 3) Lamination stage: finally deflate the upper chamber to the lamination pressure and maintain the lamination pressure for a period of time until the end of the lamination time, Press the solar cell modules together.

In this embodiment, in 1) the exhaust stage: use the deflation time of 18S to 20S to deflate the upper chamber to a pressure of -50KPA to -60KPA, and keep it for 50 to 60S; 20S deflation time, deflate the lower chamber to a pressure of -28KPA ~ -30KPA, and keep it for 2min to 3min; 3) Lamination stage: fully open the deflation valve, and keep it until the end of the lamination time. The staged deflation of the upper chamber can be controlled through the upper chamber vacuum pressure sensor, the upper chamber vacuum solenoid valve and the controller. For example: in the exhaust stage, the upper chamber vacuum solenoid valve detects that the pressure of the upper chamber has reached the exhaust pressure of -50KPA to -60KPA, then sends a signal to the controller, and the controller controls the upper chamber vacuum solenoid valve to close and stop the upper chamber. chamber to deflate. After the preset holding time in the controller is 50 to 60 seconds, the controller controls the upper chamber vacuum solenoid valve to open and continue to deflate until the upper chamber vacuum solenoid valve detects that the pressure of the upper chamber reaches the pre-pressure pressure -28KPA～- 30KPA, the controller controls the vacuum solenoid valve of the upper chamber to close, and stops deflation of the upper chamber. The above process is controlled automatically, of course, it can also be controlled manually by opening and closing the vent valve in the upper chamber correspondingly according to the displayed value of the vacuum gauge in the upper chamber.

In the present invention, the air bubbles between the solar cell components (especially the air bubbles between the glass sheet and EVA) are slowly discharged from the middle to the surroundings in the exhaust stage through the staged deflation, and the solar cell The components are pre-pressed and then laminated, which is more conducive to laminating qualified products; while the continuous progressive deflation of the technical solution of the Chinese patent CN200910182703 is difficult to ensure that the glass plate and EVA The air bubbles between them are discharged in time, and there is no pre-pressing process, the performance of the laminated product is poor.

Step 4. After the lamination time is up, close the vent valve in the upper chamber, open the vacuum valve in the upper chamber, close the vacuum valve in the lower chamber, open the vent valve in the lower chamber, and open the upper cover after the vacuum in the lower chamber returns to the atmospheric state. 2. Taking out the laminated solar cell module, the lamination process is completed, and a solar cell module product is obtained.

In summary, the lamination method of the solar module lamination device of the present invention realizes the mechanical lamination of the solar cell module by setting a multi-weight pressing device, and in a preferred case, also through the upper and lower vacuum The vacuum control of the chamber enables pneumatic lamination of the components to be laminated. Firstly, the solar cell modules (five layers of raw materials, glass, EVA, battery sheet, EVA, TPT) are stacked and placed in the lower chamber in sequence, the upper and lower chambers are first evacuated, and then the upper cover is pressed by a multi-weight pressing device 2. The upper chamber is compressed, the solar laminate is deformed, and a certain lamination pressure is generated on the solar cell module located in the lower chamber, so as to realize the mechanical lamination of the solar cell module product. The upper chamber can also be degassed in sections through the vacuum system, the lower chamber is kept vacuum, and the lamination is carried out at a constant temperature of 140 degrees. Through mechanical lamination, preferably combined with pneumatic lamination, the bonding performance between the laminated solar cell modules can be improved, and solar cell module products with no air bubbles and qualified bonding strength can be pressed out; and the solar cell module of the present invention is laminated The device is widely used and is beneficial to the development of existing solar cells.

In the description of the present invention, it should be understood that the terms "first", "second" and so on are used for descriptive purposes only, and should not be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

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

Claims (6)

1. A multi-weight solar module laminating device, comprising: a body, an openable upper cover mounted on the body, the upper cover is sealed and matched with the body to form a cavity, and the upper cover is provided with a A solar laminate for laminating solar cell components, wherein a lower chamber for accommodating solar cell components is formed between the solar laminate and the body, and an upper chamber is formed between the solar laminate and the upper cover; it is characterized in that the The solar module laminating device also includes a multi-weight pressing device for pressing the upper cover, the multi-weight pressing device is installed above the upper cover, includes a pressing assembly, and is used to drive the pressing assembly to move along the X-axis An X-axis motion assembly, a Z-axis motion assembly for driving the pressing assembly to move along the Z axis, the pressing assembly is mounted on the Z-axis motion assembly, and the Z-axis motion assembly is mounted on the X-axis motion assembly ; The pressing assembly includes a mounting frame, an array of weight assemblies, and several main pressing pieces for pressing the upper cover. The mounting frame is installed on the Z-axis motion assembly, and the array of weight assemblies is fixed on the mounting frame. The plurality of main pressing parts are respectively arranged corresponding to and connected to the array of weight assemblies; Each group of weight assemblies in the group of weight assemblies includes at least two weight assemblies, and the weight assemblies include a weight assembly guide rail, a weight slider, a weight mounting seat fixedly connected to the weight slider, and The weight installed on the weight mounting seat, the weight assembly guide rail is installed on the installation frame, the weight slider is installed on the weight assembly guide rail and moves up and down along the weight assembly guide rail, the main pressing part It is fixedly connected with the weight mounting base and located under the weight; the main pressing piece includes a threaded connection sleeve, a connecting rod, a spring and a main pressing head; the threaded connection sleeve is threadedly connected with the weight mounting base; the The connecting rod can be moved up and down in the threaded connection sleeve, and its upper and lower ends respectively expose the threaded connection sleeve; the spring is sleeved on the connecting rod, and the upper end of the spring is connected to the threaded connection The sleeve, the lower end of the spring is against the connecting rod; the main pressing head is fixed on the lower end of the connecting rod. 2. The multi-weight solar module lamination device according to claim 1, characterized in that, the pressing assembly also includes an auxiliary cylinder, an auxiliary fixing frame connected to the auxiliary air cylinder, and an array mounted on the auxiliary fixing frame Auxiliary pressing parts; The auxiliary cylinder includes an auxiliary cylinder body, a cylinder shaft extending from the auxiliary cylinder body, and a drive block connected to the cylinder shaft. The auxiliary cylinder body is fixed on a mounting frame, and the auxiliary fixing frame is fixedly connected to the drive block of the auxiliary cylinder. And driven by the cylinder shaft to move up and down; The auxiliary fixing frame includes a Y-axis guide for adjusting the position of the group of auxiliary pressing members in the Y-axis direction and/or at least one X-axis guide for adjusting the position of the group of auxiliary pressing members in the X-axis direction. shaft guide; The auxiliary pressing member includes a sleeve, a connecting rod, a spring and an auxiliary pressing head, the sleeve is fixed on the auxiliary fixing frame, the connecting rod is installed in the sleeve so as to move up and down, and its lower end exposes the The sleeve, the spring is arranged on the connecting rod and is located in the sleeve, the upper end of the spring is against the sleeve, the lower end of the spring is against the connecting rod, and the auxiliary pressing head is fixed on the lower end of the connecting rod . 3. The multi-weight solar module laminating device according to claim 1, wherein the Z-axis motion assembly includes a Z-axis moving plate, at least one Z-axis guide rail on the Z-axis moving plate, and a Z-axis moving plate. The shaft drive belt and the Z-axis drive motor used to drive the Z-axis drive belt to circulate, wherein one or two Z-axis drive motors are connected to one or both ends of the Z-axis drive belt, and the pressing assembly is installed on the Z-axis guide rail and connected with the Z-axis drive belt, driven by the Z-axis drive motor, the pressing assembly is driven by the Z-axis drive belt and slides along the Z-axis guide rail; The X-axis motion assembly includes an X-axis moving plate, at least one X-axis guide rail arranged on the X-axis moving plate, an X-axis driving belt, and an X-axis driving motor for driving the X-axis driving belt to circulate, wherein the X-axis One or two drive motors are connected to one or both ends of the X-axis drive belt. The Z-axis motion assembly and the pressing assembly installed on the Z-axis motion assembly are integrally installed on the X-axis guide rail and connected to the X-axis drive belt. Connected, driven by the X-axis drive motor, the Z-axis motion component and the pressing component are driven by the X-axis drive belt and slide along the X-axis guide rail. 4. The multi-weight solar module lamination device according to claim 1, characterized in that, the solar module lamination device also includes a vacuum system, and the vacuum system includes a vacuum system for evacuating the upper and lower chambers. The vacuum pump, and the upper and lower vacuum pipelines connected between the upper and lower chambers and the vacuum pump, the upper and lower vacuum pipelines are respectively equipped with upper and lower chamber degassing valves and upper and lower chamber vacuum valves; The vacuum system also includes a controller, and an upper chamber vacuum pressure sensor and an upper chamber vacuum solenoid valve are installed on the upper vacuum pipeline. The pressure sensor and the upper chamber vacuum solenoid valve are electrically connected to the controller, and the upper chamber vacuum pressure sensor transmits the pressure signal of the upper chamber to the controller, and the controller controls the opening or closing of the upper chamber vacuum solenoid valve; A lower chamber vacuum pressure sensor, a lower chamber vacuum solenoid valve are also installed on the lower vacuum pipeline, the lower chamber vacuum solenoid valve and the lower chamber deflation valve are connected in series and combined as one, the lower chamber vacuum pressure sensor, the lower chamber vacuum solenoid valve and the lower chamber vacuum solenoid valve are connected in series. The controller is electrically connected, the lower chamber vacuum pressure sensor transmits the pressure signal of the lower chamber to the controller, and the controller controls the opening or closing of the lower chamber vacuum solenoid valve. 5. The multi-weight solar module lamination device according to claim 1, wherein the upper cover comprises a first upper pressing plate and a second upper pressing plate, and an upper groove is arranged in the first upper pressing plate , the second upper pressing plate is provided with a lower tank body passing through the second upper pressing plate; the solar laminate is sealed and installed between the first upper pressing plate and the second upper pressing plate, and the solar laminate and the lower tank body The upper chamber is formed between them; The body includes a bracket, a heating plate installed on the bracket, and a lower pressing plate sealed and installed above the heating plate for placing the solar cell assembly, and the lower chamber is formed between the solar laminate and the lower pressing plate. 6. A lamination method of a multi-weight solar module lamination device, characterized in that it is realized by using a multi-weight solar cell module lamination device according to any one of claims 1 to 5, comprising the following step: S1. Put the solar cell module to be laminated into the lower chamber; S2. Vacuuming: firstly evacuate the lower chamber, then simultaneously evacuate the upper and lower chambers; S3. Mechanical lamination process: the multi-weight pressing device presses the upper cover, and then pressurizes the solar cell modules in the lower chamber through the solar laminate, and simultaneously heats the lower chamber; S4. Taking out the laminated solar battery module.