Laminating apparatus

Abstract

The embodiment of the utility model provides laminating equipment. The laminating equipment comprises an upper cover and a lower box body which form a laminating cavity, the upper cover comprises a first side edge and a sealing ring, and the sealing ring is fixed on the first side edge; the lower box body comprises a second side edge, a third side edge and a supporting block, the third side edge is attached to the inner side of the second side edge, the supporting block is fixed to the upper portion of the third side edge, and under the condition that the supporting block is fixed to the upper portion of the third side edge, the supporting block is higher than the second side edge; and under the condition that the upper cover and the lower box body are closed, the sealing ring is attached to the second side edge, so that the lamination cavity is sealed. The supporting block abuts against the first side edge, a certain free space is formed between the second side edge and the first side edge, the sealing ring is elastically pressed in the free space, and sealing can be achieved. The sealing ring is not completely pressed under the condition that the sealing ring is pressed in a controllable free space, so that the abrasion to the sealing ring can be reduced, and the service life of the sealing ring is prolonged.

Description

Technical Field

[0001] This application relates to the technical fields of solar cells and lamination technology, and particularly relates to a lamination device. Background Art

[0002] The lamination device is used to perform high-temperature lamination on a stacked component during the manufacturing process of a solar cell, so that the adhesive film is cured to obtain a solar cell device with a firmly bonded structure. The lamination device is a key device for realizing the transition from raw materials to solar cell devices.

[0003] Lamination needs to be carried out in a vacuum state. Therefore, the lamination device includes a lower box body and an upper cover. When the lower box body and the upper cover are closed, a sealed cavity is obtained to achieve vacuum lamination. A sealing ring is provided between the lower box body and the upper cover to achieve a good sealing effect. However, the sealing ring is often in a high-temperature environment, and during multiple opening and closing processes, it is prone to aging, losing its elasticity, and leaking air, so that the sealing ring needs to be frequently replaced.

[0004] It should be noted that the above content is not necessarily prior art and is not used to limit the patent protection scope of this application. Utility Model Content

[0005] Embodiments of this application provide a lamination device to solve or alleviate one or more of the above-mentioned technical problems.

[0006] Embodiments of this application provide a lamination device, including: an upper cover and a lower box body that form a lamination cavity;

[0007] The upper cover includes a first side edge and a sealing ring, and the sealing ring is fixed to the first side edge;

[0008] The lower box body includes a second side edge, a third side edge, and a support block. The third side edge is attached to the inner side of the second side edge, and the support block is fixed above the third side edge. When the support block is fixed above the third side edge, the height of the support block is higher than the height of the second side edge; when the upper cover and the lower box body are closed, the sealing ring is attached to the second side edge to achieve the sealing of the lamination cavity.

[0009] In one embodiment, the support block is detachably fixed above the third side edge.

[0010] In one embodiment, the support block is a magnetic member, and the support block is magnetically fixed to the third side edge.

[0011] In one embodiment, an adhesive layer is provided on the side of the support block facing away from the third side edge.

[0012] In one embodiment, the number of support blocks is at least four, and at least four support blocks are evenly distributed around the third side edge.

[0013] In one embodiment, the sealing ring includes an elastic part exposed to the first side edge, and the height difference between the support block and the second side edge is adapted to the height of the elastic part in the free state and the elastic coefficient of the sealing ring.

[0014] In one embodiment, the height difference between the support block and the second side edge is 2 / 3 - 5 / 7 of the height of the elastic part in the free state.

[0015] In one embodiment, the height difference between the support block and the second side edge is 0.3 - 1.5 mm.

[0016] In one embodiment, the height of the third side edge is lower than the height of the second side edge, and the height difference between the third side edge and the second side edge is 1 / 3 - 2 / 3 of the height of the support block.

[0017] In one embodiment, the first side edge includes a pressing part for fixing the sealing ring and an abutting part abutting against the support block; the width ratio of the pressing part to the abutting part is 1 / 3 - 2 / 3; the width of the pressing part is adapted to the width of the second side edge, and the width of the abutting part is adapted to the width of the third side edge.

[0018] In one embodiment, the second side edge and the third side edge are integrally formed.

[0019] In the embodiment of the present application, the support block abuts against the first side edge, and there is a certain free space between the second side edge and the first side edge. The sealing ring is elastically pressed in this free space, and thus sealing can be achieved. When the sealing ring is pressed in the controllable free space, it is not completely pressed, so the wear of the sealing ring can be reduced and the service life of the sealing ring can be improved. Description of the Drawings

[0020] In the drawings, unless otherwise specified, the same reference numerals throughout the several views denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0021] Figure 1 Shows a schematic structural diagram of the lower box body of the lamination device provided by the embodiment of the present application.

[0022] Figure 2 Shows a schematic structural diagram of the upper cover of the lamination device provided by the embodiment of the present application.

[0023] Figure 3 Shows Figure 1 A partial structural diagram at position A in Detailed Embodiments

[0024] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0025] It should be noted that the terms "first", "second", etc. in the specification, claims and the above-mentioned drawings of the present application are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances, so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0026] In the present application, when it comes to numerical intervals (i.e., numerical ranges), unless otherwise specified, the distribution of the selectable numerical values within the numerical interval is considered continuous, and includes the two numerical endpoints of the numerical interval (i.e., the minimum value and the maximum value), as well as each numerical value between these two numerical endpoints. Unless otherwise specified, when the numerical interval only refers to the integers within the numerical interval, it includes the two endpoint integers of the numerical range, as well as each integer between the two endpoints, which is equivalent to directly listing each integer. When multiple numerical ranges are provided to describe features or characteristics, these numerical ranges can be combined. In other words, unless otherwise specified, the numerical ranges disclosed in the present application should be understood to include any and all sub-ranges subsumed therein. The "numerical value" in the numerical interval can be any quantitative value, such as a number, a percentage, a ratio, etc. The "numerical interval" allows for a broad inclusion of quantitative intervals such as percentage intervals, ratio intervals, and ratio value intervals.

[0027] Next, exemplary embodiments according to the present application will be described in more detail with reference to the drawings. It should be noted that these exemplary embodiments can be implemented in many different forms and should not be construed as being limited only to the embodiments set forth herein.

[0028] The embodiments of the present application provide a lamination device to extend the service life of the sealing ring, reduce the number of times of replacing the sealing ring, save the equipment cost and improve the lamination efficiency.

[0029] Such as Figures 1 to 3As shown in the figure, the lamination device provided by the embodiment of the present application includes: an upper cover 100 and a lower box body 200 that form a lamination cavity. When the upper cover 100 covers the upper part of the lower box body 200, a sealed lamination cavity is formed. It can be understood that both the upper cover 100 and the lower box body 200 are box-like structures including openings, and the openings of the upper cover 100 and the lower box body 200 are arranged opposite to each other, so that a cavity is formed when they are covered. The box-like structure usually includes a bottom wall and side edges surrounding the bottom wall. When the upper cover 100 and the lower box body 200 are covered, the side edges of the upper cover 100 and the lower box body 200 are in contact, thereby achieving sealing. In order to improve the sealing effect, a sealing ring 120 needs to be provided on the side edges of the upper cover 100 and / or the lower box body 200.

[0030] In the embodiment of the present application, the upper cover 100 includes a first side edge 110 and a sealing ring 120, and the sealing ring 120 is fixed to the first side edge 110.

[0031] The upper cover 100 can be understood as a box-like structure with the opening facing downwards when it is covered.

[0032] The sealing ring 120 can be fixed to the first side edge 110 by various technical solutions known to those of ordinary skill in the art now and in the future.

[0033] The lower box body 200 includes a second side edge 210, a third side edge 220 and a support block 230. The third side edge 220 is attached to the inner side of the second side edge 210, and the support block 230 is fixed above the third side edge 220. When the support block 230 is fixed above the third side edge 220, the height of the support block 230 is higher than the height of the second side edge 210; when the upper cover 100 and the lower box body 200 are covered, the sealing ring 120 is attached to the second side edge 210 to achieve the sealing of the lamination cavity.

[0034] The lower box body 200 can be understood as a box-like structure with the opening facing upwards.

[0035] The third side edge 220 is attached to the inner side of the second side edge 210. It can be that the second side edge 210 and the third side edge 220 are respectively fixed to the bottom wall, and the second side edge 210 and the third side edge 220 are closely attached. There can be no gap or a small gap between the second side edge 210 and the third side edge 220, and this gap can be any value in the range of 0.001 - 0.1 mm, such as 0.001 mm, 0.009 mm, 0.01 mm, 0.03 mm, 0.095 mm or 0.1 mm.

[0036] The third side edge 220 is attached to the inner side of the second side edge 210, or the third side edge 220 can be fixed to the inner side of the second side edge 210. The third side edge 220 can be connected to the bottom wall of the lower box body 200 or separated from the bottom wall of the lower box body 200. When the third side edge 220 is separated from the bottom wall of the lower box body 200, the height of the third side edge 220 is 1 mm - 3 mm, for example, 1 mm, 2 mm or 3 mm.

[0037] The support block 230 is fixed above the third side edge 220. The width and radian of the support block 230 are adapted to the position where the support block 230 is fixed to the third side edge 220, so that the support block 230 can be stably fixed above the third side edge 220.

[0038] The height of the support block 230 is higher than the height of the second side edge 210. When the upper cover 100 and the lower box body 200 are closed, the sealing ring 120 of the upper cover 100 is attached to the second side edge 210, and at the same time, the first side edge 110 of the upper cover 100 abuts against the support block 230. When the support block 230 abuts against the first side edge 110, the initial sealing of the lamination cavity can be achieved; based on the function of the sealing ring 120, secondary sealing can be achieved. The double sealing can improve the sealing effect.

[0039] In an exemplary application scenario, the lamination assembly 300 of one or more photovoltaic modules is placed on the bottom wall of the lower box body 200, and the upper cover 100 is closed so that the sealing ring 120 of the upper cover 100 fits with the second side edge 210 of the lower box body 200; after being locked by a clamping or locking device, that is, the lamination assembly 300 is located in the sealing cavity, and then vacuum lamination is achieved by evacuating.

[0040] In the embodiment of the present application, the support block 230 abuts against the first side edge 110, so that there is a certain free space between the second side edge 210 and the first side edge 110. The sealing ring 120 is elastically pressed in this free space, and thus sealing can be achieved. When the sealing ring 120 is pressed in a controllable free space, the elastic force it receives is incomplete pressing, which can reduce the wear of the sealing ring 120, thereby improving the service life of the sealing ring 120.

[0041] In one embodiment, the support block 230 is detachably fixed above the third side edge 220.

[0042] The support block 230 is detachably fixed above the third side edge 220, so that support blocks 230 with different heights can be replaced according to the actual application situation to ensure the sealing performance.

[0043] In one example, when the sealing ring 120 has good elasticity, a relatively high support block 230 can be set; after the sealing ring 120 has been used for a period of time and the sealing ring 120 ages and its elasticity weakens, a shorter support block 230 can be replaced to ensure good sealing.

[0044] In the embodiment of the present application, through the detachable fixation of the support block 230 and the third side edge 220, the support block 230 can be replaced successively according to the service time of the sealing ring 120, so as to improve the service life of the sealing ring 120.

[0045] In one example, based on the solution of the embodiment of the present application, a sealing ring 120 with a relatively high height can also be set to further improve the service life of the sealing ring 120.

[0046] In one implementation manner, the support block 230 is a magnetic member, and the support block 230 and the third side edge 220 are magnetically fixed.

[0047] In the embodiment of the present application, by magnetically fixing the support block 230 and the third side edge 220, the support block 230 can be quickly replaced, and the magnetic fixing method can also reduce the wear during multiple disassembly processes of the support block 230 and improve the abutting and sealing effect between the support block 230 and the first side edge 110.

[0048] The support block 230 is a magnetic member, such as a magnetic block that can be magnetically attracted to the second side edge 210 and the third side edge 220. Correspondingly, the materials of the second side edge 210 and the third side edge 220 are materials that can be firmly magnetically attracted to the magnetic member, such as stainless steel material, ferroalloy material, etc.

[0049] In one implementation manner, an adhesive layer is provided on the side of the support block 230 facing away from the third side edge 220.

[0050] In a lamination device, generally, the materials of the first side edge 110 and the second side edge 210 and / or the third side edge 220 are the same. When the support block 230 can be magnetically attracted to the third side edge 220, it can also be magnetically attracted to the first side edge 110. In order to prevent the support block 230 from being magnetically attracted to the first side edge 110, an adhesive layer can be provided on the side of the support block 230 facing away from the third side edge 220 to prevent the first side edge 110 from attracting the support block 230. The adhesive layer can be a resin adhesive film material that can be firmly bonded to the third side edge 220.

[0051] Furthermore, by providing an adhesive layer on the side of the support block 230 facing away from the third side edge 220, the sealing performance when the support block 230 abuts against the first side edge 110 can also be improved.

[0052] In one embodiment, the number of the support blocks 230 is at least four, and the at least four support blocks 230 are evenly distributed around the third side edge 220.

[0053] The number of the support blocks 230 is multiple, so as to support the first side edge 110 from multiple positions and provide a pressing distance for the sealing ring 120. Through the design of the multiple support blocks 230, the sealing ring 120 can be protected at multiple positions.

[0054] The lamination device is usually square and includes four side edges. Therefore, the number of the support blocks 230 being at least four can enable each side edge to protect the sealing ring 120.

[0055] In one example, on each of the four side edges, at least 2 support blocks 230 are arranged to provide stable support.

[0056] In one example, among the four side edges, the number of the support blocks 230 arranged on the long side is more than that on the short side, so as to achieve the even distribution of the multiple support blocks 230.

[0057] In one embodiment, the sealing ring 120 includes an elastic part exposed to the first side edge 110, and the height difference between the support block 230 and the second side edge 210 is adapted to the height of the elastic part in the free state and the elastic coefficient of the sealing ring 120.

[0058] The sealing ring 120 can be bonded or adhered to the first side edge 110; it can also be clamped inside the first side edge 110. For example, the first side edge 110 is provided with a groove for clamping the sealing ring 120, and the sealing ring 120 is partially clamped in the groove to more firmly fix the sealing ring 120 and prevent the sealing ring 120 from falling off, thereby extending the service life of the sealing ring 120 from another perspective. Then the sealing ring 120 further includes a fixing part clamped inside the first side edge 110.

[0059] The sealing ring 120 further includes an elastic part exposed to the first side edge 110. When the upper cover 100 and the lower box body 200 are closed, the elastic part is extruded, and the effect of sealing the lamination cavity is achieved based on the extrusion.

[0060] The support block 230 is higher than the second side edge 210, so that the extrusion force on the sealing ring 120 can be reduced, and the sealing effect is also achieved.

[0061] The higher the height of the elastic part in the free state, the higher the height difference between the support block 230 and the second side edge 210 can be; it can be understood that the height difference between the support block 230 and the second side edge 210 must be less than the height of the elastic part in the free state, and only in this case can the sealing ring 120 be pressed to achieve the sealing effect.

[0062] The greater the elastic coefficient of the sealing ring 120, the higher the height difference between the support block 230 and the second side edge 210 can be; in this case, the sealing effect of the lamination cavity can still be ensured.

[0063] In one embodiment, the height difference between the support block 230 and the second side edge 210 is 2 / 3 - 5 / 7 of the height of the elastic part in the free state.

[0064] The height difference between the support block 230 and the second side edge 210 is 2 / 3 - 5 / 7 of the height of the elastic part in the free state, such as 2 / 3, 2 / 3, 2 / 3, 2 / 3, and 5 / 7. In the case of this height difference, the sealing performance of the sealing ring 120 can be ensured.

[0065] In one embodiment, the height difference between the support block 230 and the second side edge 210 is 0.3 - 1.5 mm.

[0066] The height difference between the support block 230 and the second side edge 210 is 0.3 - 1.5 mm, such as 0.3 mm, 0.5 mm, 0.6 mm, 0.8 mm, or 1.5 mm.

[0067] In an example, a lamination device can be configured with multiple support blocks 230 of a preset height for standby. The heights of the multiple support blocks 230 of the preset height are all within the range of 0.3 - 1.5 mm.

[0068] In one embodiment, the height of the third side edge 220 is lower than the height of the second side edge 210, and the height difference between the third side edge 220 and the second side edge 210 is 1 / 3 - 2 / 3 of the height of the support block 230.

[0069] The height of the third side edge 220 is lower than the height of the second side edge 210 to form a stepped shape. The support block 230 can be arranged above the third side edge 220, and based on the support of the second side edge 210, the support block 230 is fixed stably. The stability performance of the lamination device is improved.

[0070] By defining the height difference between the third side edge 220 and the second side edge 210 as 1 / 3 - 2 / 3 of the height of the support block 230, it can be ensured that the second side edge 210 provides a supporting effect for the support block 230 at the same time, ensuring the magnetic absorption stability of the support block 230.

[0071] In one embodiment, the first side edge 110 includes a pressing part for fixing the sealing ring 120 and an abutting part that abuts against the support block 230; the width ratio of the pressing part to the abutting part is 1 / 3 - 2 / 3; the width of the pressing part is adapted to the width of the second side edge 210, and the width of the abutting part is adapted to the width of the third side edge 220.

[0072] It is applicable if the width of the pressing part or the abutting part is wider.

[0073] In one example, the pressing part abuts against the second side edge 210 through the sealing ring 120; the abutting part abuts against the third side edge 220; thus, the width of the pressing part is adapted to the width of the second side edge 210, and the width of the abutting part is adapted to the width of the third side edge 220, so that the abutting effect is better and the sealing is more stable.

[0074] In one implementation, the second side edge 210 and the third side edge 220 are integrally formed. The integrally formed structure is more firm, improving the stability performance of the laminating device.

[0075] It should be noted that the terms used herein are only for describing specific implementations and are not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0076] For the sake of convenience of description, the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "on other devices or structures" will be positioned "below other devices or structures" or "under other devices or structures" afterwards. Thus, the exemplary term "above..." can include both "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding explanations are made for the relative spatial descriptions used herein.

[0077] Unless otherwise clearly specified and defined, the terms "install", "connect", "couple", "fix" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0078] Unless otherwise expressly specified and limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include contact between the first and second features through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0079] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the sake of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it is not necessary to discuss it further in subsequent drawings.

[0080] It should also be noted that the "one embodiment", "another embodiment", "embodiment" and the like mentioned in this specification refer to the specific features, structures or characteristics described in connection with that embodiment being included in at least one embodiment generally described in the present application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when describing a specific feature, structure or characteristic in connection with any embodiment, it is intended that the implementation of such feature, structure or characteristic in combination with other embodiments also fall within the scope of the present application.

[0081] In the above embodiments, the descriptions of the various embodiments have their own emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0082] It should also be noted that the above are only the preferred embodiments of the present application, and do not limit the patent protection scope of the present application accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present application.

Claims

1. A laminating device, characterized in that: include: An upper cover and a lower box body forming a lamination cavity; The upper cover comprises a first side edge and a sealing ring, wherein the sealing ring is fixed to the first side edge; The lower box body includes a second side edge, a third side edge and a support block, the third side edge is attached to the inner side of the second side edge, and the support block is fixed above the third side edge. When the support block is fixed above the third side edge, the height of the support block is higher than the height of the second side edge. When the upper cover and the lower box body are covered, the sealing ring is attached to the second side edge to achieve sealing of the lamination cavity.

2. The laminating device according to claim 1, characterized in that The support block is detachably fixed above the third side edge.

3. The laminating device according to claim 1 or 2, characterized in that The support block is a magnetic piece, and the support block is fixed to the third side edge based on magnetic attraction.

4. The laminating device according to claim 3, characterized in that A glue layer is provided on a side of the support block away from the third side edge.

5. The laminating device according to claim 1, characterized in that The number of the support blocks is at least four, and the at least four support blocks are evenly distributed around the third side edge.

6. The laminating device according to claim 1, characterized in that The sealing ring includes an elastic portion exposed to the first side edge, and the height difference of the supporting block above the second side edge is adapted to the height of the elastic portion in a free state and the elastic coefficient of the sealing ring.

7. The laminating device according to claim 6, characterized in that The height difference of the support block above the second side edge is 2 / 3-5 / 7 of the height of the elastic part in the free state.

8. Laminating apparatus according to claim 1, 6 or 7, characterized in that The height difference of the support block above the second side edge is 0.3-1.5 mm.

9. The laminating device according to claim 1, characterized in that The height of the third side edge is lower than that of the second side edge, and the height difference between the third side edge and the second side edge is 1 / 3-2 / 3 of the height of the support block.

10. The laminating device according to claim 1, characterized in that The first side edge includes a pressing portion for fixing the sealing ring and an abutting portion abutting the support block; the ratio of the width of the pressing portion to the abutting portion is 1 / 3-2 / 3; the width of the pressing portion is adapted to the width of the second side edge, and the width of the abutting portion is adapted to the width of the third side edge.

11. The laminating device according to claim 1, characterized in that The second side edge and the third side edge are integrally formed.

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