WO2024087595A1 - 光伏组件、光伏组件生产设备及电池串的摆片方法 - Google Patents

光伏组件、光伏组件生产设备及电池串的摆片方法 Download PDF

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Publication number
WO2024087595A1
WO2024087595A1 PCT/CN2023/095178 CN2023095178W WO2024087595A1 WO 2024087595 A1 WO2024087595 A1 WO 2024087595A1 CN 2023095178 W CN2023095178 W CN 2023095178W WO 2024087595 A1 WO2024087595 A1 WO 2024087595A1
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WO
WIPO (PCT)
Prior art keywords
conveyor belt
battery cell
battery
conveying direction
photovoltaic module
Prior art date
Application number
PCT/CN2023/095178
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English (en)
French (fr)
Inventor
丁二亮
周华明
石刚
Original Assignee
通威太阳能（合肥）有限公司
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Publication of WO2024087595A1 publication Critical patent/WO2024087595A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
    • B65G47/26—Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles
    • B65G47/28—Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles during transit by a single conveyor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
    • B65G49/05—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles
    • B65G49/07—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles for semiconductor wafers Not used, see H01L21/677
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present application relates to the field of photovoltaic technology, and in particular to a photovoltaic module, photovoltaic module production equipment and a battery string swinging method.
  • a photovoltaic module a photovoltaic module, photovoltaic module production equipment and a battery string swinging method are provided.
  • a battery string swinging method comprising the following steps:
  • the step of detecting the actual width of each battery cell to obtain the actual width value D i of each battery cell includes:
  • the image information of the shadow is collected, and the actual width value D i of the battery cell is calculated based on the collected image information.
  • the step of placing the battery cells on a stationary conveyor belt in sequence so that the side edge of each battery cell facing the conveying direction coincides with a preset reference placement edge includes:
  • the method further includes:
  • Each of the battery cells is adsorbed onto the conveyor belt.
  • a photovoltaic module production device comprising:
  • a width detection component the width detection component is used to detect the actual width of each battery cell to obtain the actual width value D i of each battery cell, wherein i is a positive integer;
  • a conveyor belt the conveyor belt can run along a conveying direction, and the conveyor belt has a preset reference swing Put aside;
  • a swinging mechanism the swinging mechanism is used to place the battery cells on the stationary conveyor belt in sequence, so that the side edge of each battery cell facing the conveying direction coincides with the preset reference placement edge;
  • the width detection component includes a light-transmitting platform, a backlight source, an image acquisition element and a controller.
  • the backlight source is arranged below the light-transmitting platform
  • the image acquisition element is arranged above the light-transmitting platform
  • the controller is electrically connected to the image acquisition element and the conveyor belt respectively.
  • the photovoltaic module production equipment also includes an overlap detection component and a warning element.
  • the overlap detection component detects the overlap between the side edge of each battery cell facing the conveying direction and the preset reference placement edge.
  • the overlap detection component is electrically connected to the warning element.
  • the overlap detection component includes a first light emitter, a first light receiver, a second light emitter and a second light receiver.
  • the first light emitter and the first light receiver are respectively located on two opposite sides of the conveyor belt and are arranged corresponding to each other
  • the second light emitter and the second light receiver are respectively located on two opposite sides of the conveyor belt and are arranged corresponding to each other
  • the optical path of the first light emitter coincides with the preset reference placement edge
  • the second light emitter is arranged adjacent to the first light emitter and is located on one side of the first light emitter along the conveying direction
  • the first light emitter and the second light emitter are both electrically connected to the warning element.
  • the conveyor belt is provided with at least two adsorption through holes along the conveying direction
  • each of the solar cells is provided with at least one of the adsorption through holes
  • the photovoltaic module production equipment further includes a vacuum pumping component, which is connected to each of the adsorption through holes.
  • a photovoltaic module is provided, which is manufactured by adopting the above-mentioned battery string swinging method.
  • FIG1 is a flow chart of a battery string swinging method according to an embodiment
  • FIG2 is a front view of a photovoltaic module production device according to an embodiment
  • FIG3 is a schematic diagram of the placement of each cell of the photovoltaic module production equipment of FIG1 ;
  • FIG4 is a schematic structural diagram of a width detection assembly of the photovoltaic assembly production equipment of FIG1 ;
  • FIG. 5 is a schematic diagram of the cell spacing between two adjacent cell sheets in the existing cell swinging method.
  • reference numerals 100, width detection component; 110, light transmission platform; 120, backlight source; 130, image acquisition element; 200, conveyor belt; 210, preset reference placement edge; 1000 (1000a, 1000b, 1000c), battery cells.
  • the spacing between the side edges of two adjacent battery cells 1000 on the same side is A, and A is usually considered to be a constant value.
  • A is usually considered to be a constant value.
  • the width of the battery cell 1000 is 105 mm, and the theoretical cell spacing is 2 mm, then the spacing A between the side edges of two adjacent battery cells 1000 on the same side is 107 mm. Due to the influence of production errors or cutting errors, the width of the battery cell 1000 has error fluctuations.
  • the width B of the battery cell 1000 usually fluctuates by ⁇ 0.5mm.
  • a battery string swinging method which at least includes the following steps:
  • the width detection component 100 is first used to detect the actual width value Di of each battery cell 1000 to be welded, so as to facilitate the subsequent accurate control of the cell spacing between two adjacent battery cells 1000.
  • the width detection component 100 detects the actual width value Di of the battery cell 1000, which can be implemented by any existing method or instrument.
  • S100 includes: S110, placing the cell 1000 on the light-transmitting platform 110, turning on the backlight source 120 so that the cell 1000 leaves a shadow on the light-transmitting platform 110.
  • the light-emitting diode (LED) located below the light-transmitting platform 110 is turned on.
  • the backlight source 120 such as a diode (light-emitting diode) lamp is used to make the cell 1000 appear a shadow at the part where the light-transmitting platform 110 is blocked.
  • S120 the image information of the shadow is collected, and the actual width value Di of the cell 1000 is calculated based on the collected image information.
  • the image information of the shadow is collected by using an image collection element 130 such as a CCD (Charge-coupled Device) camera located above the light-transmitting platform 110, and the collected image information is sent to the controller, and the controller calculates based on the collected image information to obtain the actual width value Di of the cell 1000, and repeats this process to obtain the actual width value Di of each cell 1000.
  • an image collection element 130 such as a CCD (Charge-coupled Device) camera located above the light-transmitting platform 110
  • the collected image information is sent to the controller, and the controller calculates based on the collected image information to obtain the actual width value Di of the cell 1000, and repeats this process to obtain the actual width value Di of each cell 1000.
  • the actual width of the shadow can be obtained by calculating the number of pixels occupied by the shadow, and then the actual width value of the battery cell 1000 can be obtained. Since it belongs to the existing method, it will not be repeated here.
  • the actual width value of the battery cell 1000 may also be detected by a wide-angle measurement method or other methods, which is not limited here.
  • each battery cell 1000 is placed at a preset position on the stationary conveyor belt 200 using a swing mechanism such as a manipulator (not shown), so that the side of each battery cell 1000 facing the conveying direction of the conveyor belt 200 coincides with the preset reference placement edge 210 of the preset position, so that each battery cell 1000 can be conveyed from the same preset position by swinging, and after the current battery cell 1000 is placed and moved forward a swing distance L in the conveying direction under the conveyance of the conveyor belt 200, the next battery cell 1000 is placed, and the swinging is repeated in this way, so that the spacing between two adjacent battery cells 1000 is always Z, which can eliminate the influence caused by the width error of the battery cell 1000, avoid the fluctuation of the spacing between two adjacent battery cells 1000, and ensure the product quality of the photovoltaic module. Moreover, it can also accurately reduce the spacing between cells, Increase the screen-to-body ratio and improve the power and efficiency of photovoltaic modules.
  • the preset sheet spacing Z can be flexibly designed or adjusted according to actual production needs or usage needs.
  • placing each battery cell 1000 on the stationary conveyor belt 200 in sequence means that each time the battery cell 1000 is placed on the conveyor belt 200, the conveyor belt 200 is in a stationary state. At this time, the conveyor belt 200 stops moving to avoid the problem of inaccurate swinging of the cells caused by movement and affecting the cell spacing.
  • each battery cell 1000 needs to be wire-drawn and serially welded to finally obtain a battery string. Since this belongs to the existing process, it will not be described here.
  • the preset reference placement edge 210 may refer to a preset fixed position on the conveyor belt 200, and the preset fixed position will not change due to the operation of the conveyor belt 200, so that when the side edge of each battery cell 1000 facing the conveying direction coincides with the preset reference placement edge 210, each battery cell 1000 can be conveyed from the same preset position.
  • the preset reference placement edge 210 may be a reference line or a reference edge.
  • the conveying direction of the conveyor belt 200 is from right to left, and the preset reference placement edge 210 can be a reference line at a preset distance from the right end of the conveyor belt 200. The preset distance needs to ensure that any battery cell 1000 can be completely placed on the conveyor belt 200.
  • the conveying direction of the conveyor belt 200 is from left to right, and the preset reference placement edge 210 can be a reference line at a preset distance from the left end of the conveyor belt 200. The preset distance needs to ensure that any battery cell 1000 can be completely placed on the conveyor belt 200.
  • three battery cells 1000 are taken as an example for explanation, which shall not be construed as a limitation on the present application. In other embodiments, the number of battery cells 1000 may be two, four or more.
  • the first battery cell 1000a is placed on a stationary conveyor belt. 200, so that the side edge of the first battery cell 1000a facing the conveying direction (as shown in the F1 direction of FIG. 2) coincides with the preset reference placement edge 210.
  • the conveyor belt 200 drives the first battery cell 1000a to move forward along the conveying direction by a swing distance of D1 +Z.
  • the conveyor belt 200 is kept stationary, and the second battery cell 1000b is placed on the stationary conveyor belt 200, so that the side edge of the second battery cell 1000b facing the conveying direction coincides with the preset reference placement edge 210.
  • the cell spacing between the first battery cell 1000a and the second battery cell 1000b is Z.
  • the conveyor belt 200 drives the first battery cell 1000a and the second battery cell 1000b to move forward along the conveying direction by D2 synchronously. +Z swinging distance; then make the conveyor belt 200 stationary, place the third battery cell 1000c on the stationary conveyor belt 200, so that the side edge of the third battery cell 1000c facing the conveying direction coincides with the preset reference placement edge 210.
  • the distance between the third battery cell 1000c and the second battery cell 1000b is Z.
  • step S200 it also includes: S210, detecting the overlap between the side edge of each battery cell 1000 facing the conveying direction and the preset reference placement edge 210, and if there is a deviation between the overlap and the preset overlap, a warning signal is issued.
  • the overlap is detected using the overlap detection component, so as to avoid the fluctuation of the cell spacing caused by the inaccurate placement of the placement mechanism, and ensure that the cell spacing between two adjacent battery cells 1000 is a constant preset cell spacing.
  • the warning element can promptly issue a warning signal to remind the operator to stop the machine for maintenance, so as to avoid waste and loss caused by the defective products of the entire battery string and photovoltaic module produced.
  • the overlap detection component may detect the overlap between the side edge of the battery cell 1000 facing the conveying direction and the preset reference placement edge 210 by means of photoelectric detection or position detection.
  • the overlap detection assembly includes a first light emitter (not shown), a first light receiver (not shown), a second light emitter (not shown), and a second light receiver (not shown).
  • first light emitter and the first light receiver are respectively located on opposite sides of the conveyor belt 200 and
  • the second light emitter and the second light receiver are arranged correspondingly to each other, and are respectively located on opposite sides of the conveyor belt 200 and are arranged correspondingly to each other.
  • the optical path of the first light emitter coincides with the preset reference placement edge 210
  • the second light emitter is arranged adjacent to the first light emitter and is located on one side of the first light emitter along the conveying direction.
  • the battery cell 1000 when the battery cell 1000 is placed on the conveyor belt 200, if the side edge of the battery cell 1000 facing the conveying direction coincides with the preset reference placement edge 210, the optical path of the first light emitter is blocked and the optical path of the second light emitter is not blocked, so that the first light receiver cannot receive the optical signal and the second light receiver can receive the optical signal, and it can be determined that there is no deviation between the overlap degree and the preset overlap degree.
  • the side edge of the battery cell 1000 facing the conveying direction moves a certain displacement relative to the preset reference placement edge 210 toward the conveying direction (as shown in the F1 direction of FIG.
  • the optical path of the first light emitter is not blocked and the optical path of the second light emitter is not blocked, so that the first light receiver can receive the optical signal and the second light receiver can also receive the optical signal, and it can be determined that there is a deviation between the overlap and the preset overlap.
  • the first light emitter and the second light emitter are both electrically connected to the warning element. In this way, when it is determined that there is a deviation between the overlap and the preset overlap, the warning element can send out a warning signal in time to remind the operator to stop the machine for maintenance, so as to avoid waste and loss caused by the defective products of the entire battery string and photovoltaic module produced. When it is determined that there is no deviation between the overlap and the preset overlap, the warning element remains silent.
  • the method further includes: S300, adsorbing each battery cell 1000 onto the conveyor belt 200.
  • the battery cell 1000 is tightly attached to the conveyor belt 200 by the adsorption method, so as to prevent the battery cell 1000 from being tangled with the conveyor belt 200 when the conveyor belt 200 drives the battery cell 1000 to move along the conveying direction.
  • the relative movement occurs so that the relative position of the battery cell 1000 and the conveyor belt 200 remains stable, thereby ensuring the accuracy and stability of the cell spacing.
  • the conveyor belt 200 is provided with adsorption through holes (not shown in the figure).
  • adsorption through holes not shown in the figure.
  • each battery cell 1000 can be adsorbed on the conveyor belt 200, so as to avoid relative movement between the battery cell 1000 and the conveyor belt 200 when the subsequent conveyor belt 200 drives the battery cell 1000 to move along the conveying direction, so that the relative position of the battery cell 1000 and the conveyor belt 200 remains stable, thereby ensuring the accuracy and stability of the cell spacing.
  • the battery string swinging method of the above-mentioned embodiment has at least the following advantages: 1. It can ensure that the spacing between two adjacent battery cells 1000 is always constant, can eliminate the influence caused by the width error of the battery cell 1000, avoid the fluctuation of the spacing between two adjacent battery cells 1000, ensure the product quality of the photovoltaic module, and can accurately reduce the spacing between the cells, improve the screen-to-body ratio, and improve the power and efficiency of the photovoltaic module; 2. It can avoid the fluctuation of the spacing between the cells caused by inaccurate placement of the placement mechanism, and ensure that the spacing between two adjacent battery cells 1000 is a constant preset spacing; 3.
  • a photovoltaic module production device including a width detection component 100 , a conveyor belt 200 and a swinging plate mechanism.
  • each battery cell 1000 to be welded is first measured by using the width detection component 100. i is used for detection, so as to facilitate the subsequent accurate control of the spacing between two adjacent battery cells 1000; then, each battery cell 1000 is placed at a preset position on the stationary conveyor belt 200 by using the swing mechanism, so that the side of each battery cell 1000 facing the conveying direction of the conveyor belt 200 coincides with the preset reference placement edge 210 of the preset position, so that each battery cell 1000 can be conveyed by swinging from the same preset position, and after the current battery cell 1000 is placed and moved forward a swing distance L along the conveying direction under the conveyance of the conveyor belt 200, the next battery cell 1000 is placed, and the swinging is repeated in this way, so that the spacing between two adjacent battery cells 1000 is always Z, which can eliminate the influence caused by the width error of the battery cell 1000, avoid the fluctuation of the spacing between two adjacent battery cells 1000, ensure the product quality
  • the conveyor belt 200 may be in the form of a belt or a chain plate.
  • the width detection assembly 100 includes a light-transmitting platform 110, a backlight source 120, an image acquisition element 130 and a controller, wherein the backlight source 120 is disposed below the light-transmitting platform 110, the image acquisition element 130 is disposed above the light-transmitting platform 110, and the controller is electrically connected to the image acquisition element 130 and the conveyor belt 200, respectively.
  • the backlight source 120 located below the light-transmitting platform 110 is turned on, so that a shadow appears at the part where the battery cell 1000 blocks the light-transmitting platform 110, and the image acquisition element 130 located above the light-transmitting platform 110 is used to acquire image information of the shadow and send the acquired image information to the controller, which performs calculations based on the acquired image information to obtain the actual width value Di of the battery cell 1000, and repeats this process to obtain the actual width value Di of each battery cell 1000.
  • the controller may be a central console, a single chip microcomputer or other devices with control functions.
  • the controller may also control the operation or stop of the conveyor belt 200 and the moving distance of the conveyor belt 200.
  • the photovoltaic module production equipment also includes a coincidence detection component (not shown) and a warning element (not shown).
  • the coincidence detection component detects the coincidence between the side of each battery cell 1000 facing the conveying direction and the preset reference placement edge 210, and the coincidence detection component is electrically connected to the warning element. In this way, the coincidence detection component is used to detect the coincidence, so as to avoid the fluctuation of the cell spacing caused by the inaccurate placement of the placement mechanism, and ensure that the cell spacing between two adjacent battery cells 1000 is a constant preset cell spacing.
  • the warning element can promptly send a warning signal to remind the operator to stop the machine for maintenance, so as to avoid waste and loss caused by the defective products of the entire battery string and photovoltaic module produced.
  • the warning element may be a buzzer or other element that can emit sound warning information, or a warning light or other element that can emit light warning information.
  • the electrical connection may be achieved by wire connection or by wireless transmission.
  • the conveyor belt 200 is provided with at least two adsorption through holes, and each cell 1000 corresponds to at least one adsorption through hole.
  • the photovoltaic module production equipment also includes a vacuum pumping component, and the vacuum pumping component is connected to each adsorption through hole.
  • each cell 1000 corresponds to at least one adsorption through hole, that is, the projection of the cell 1000 placed on the conveyor belt 200 on the conveyor belt 200 covers at least one adsorption through hole, so that when the vacuum pump and other vacuum pumping components are working, each cell 1000 can be adsorbed on the conveyor belt 200, so as to avoid the relative movement of the cell 1000 and the conveyor belt 200 when the subsequent conveyor belt 200 drives the cell 1000 to move along the conveying direction, so that the relative position of the cell 1000 and the conveyor belt 200 remains stable, and the accuracy and stability of the cell spacing are ensured.
  • a photovoltaic module is also provided, which is manufactured by adopting the above-mentioned battery string swinging method. have to.
  • the photovoltaic module of the above-mentioned embodiment can ensure that the spacing between two adjacent battery cells 1000 is always constant, can eliminate the influence caused by the width error of the battery cell 1000, avoid the fluctuation of the spacing between two adjacent battery cells 1000, ensure the product quality of the photovoltaic module, and can accurately reduce the spacing between the cells, increase the screen-to-body ratio, and improve the power and efficiency of the photovoltaic module.
  • first and second are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as “first” and “second” may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality” is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
  • the terms “installed”, “connected”, “connected”, “fixed” and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined.
  • installed can be a fixed connection, a detachable connection, or an integral connection
  • it can be a mechanical connection or an electrical connection
  • it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined.
  • the specific meanings of the above terms in this application can be understood according to specific circumstances.
  • a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium.
  • a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • a first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
  • an element when an element is referred to as being “fixed on”, “disposed on”, “fixed on” or “installed on” another element, it may be directly on the other element or there may be a central element.
  • an element When an element is considered to be “connected to” another element, it may be directly connected to the other element or there may be a central element at the same time.
  • an element when an element is considered to be "fixed transmission connected” to another element, the two may be fixed in a detachable connection manner or in a non-detachable connection, as long as power transmission can be achieved, such as socketing, snap-fitting, one-piece fixation, welding, etc., which can be achieved in the prior art and will not be repeated here.
  • connection relationship or positional relationship of elements although not explicitly described, the connection relationship and positional relationship are interpreted as including an error range, which should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, “approximately”, “approximately” or “substantially” may mean within one or more standard deviations, which are not limited here.

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  • Photovoltaic Devices (AREA)

Abstract

本申请涉及一种光伏组件、光伏组件生产设备及电池串的摆片方法，电池串的摆片方法包括以下步骤：对各个电池片(1000)的实际宽度进行检测，得到各个所述电池片(1000)的实际宽度值Di，其中，i为正整数；将各个所述电池片(1000)依次摆放在静止的输送带(200)上，使每个所述电池片(1000)朝向输送方向的一侧的侧边与预设基准摆放边(210)相重合，其中，当第i个所述电池片(1000)摆片完成后，则所述输送带(200)沿输送方向移动一个摆片距离L后再摆放第i+1个所述电池片(1000)，其中，L＝Di+Z，Z为预设片间距。

Description

光伏组件、光伏组件生产设备及电池串的摆片方法
相关申请的交叉引用
本公开要求于2022年10月26日提交中国专利局、申请号为2022113185655、名称为“光伏组件、光伏组件生产设备及电池串的摆片方法”的中国专利的优先权，所述专利申请的全部内容通过引用结合在本公开中。
技术领域
本申请涉及光伏技术领域，特别是涉及一种光伏组件、光伏组件生产设备及电池串的摆片方法。
背景技术
随着光伏技术的兴起，光伏组件向着更高功率、更高效率方向不断发展。光伏组件的电池串在摆片过程中，为了能够保证光伏组件的效率和功率，需要准确地控制相邻两片电池片之间的片间距。现有的摆片方法易出现片间距波动，无法保证产品品质。
发明内容
根据本申请的各种实施例，提供一种光伏组件、光伏组件生产设备及电池串的摆片方法。
其技术方案如下：
一方面，提供了一种电池串的摆片方法，包括以下步骤：
对各个电池片的实际宽度进行检测，得到各个所述电池片的实际宽度值Di，其中，i为正整数；
将各个所述电池片依次摆放在静止的输送带上，使每个所述电池片朝向输送方向的一侧的侧边与预设基准摆放边相重合，其中，当第i个所述电池片摆片完成后，则所述输送带沿输送方向移动一个摆片距离L后再摆放第i+1个所述电池片，其中，L＝Di+Z，Z为预设片间距。
下面进一步对技术方案进行说明：
在其中一个实施例中，在对各个电池片的实际宽度进行检测，得到各个所述电池片的实际宽度值Di的步骤中，包括：
将所述电池片放置在透光台上，打开背光源以使所述电池片在透光台上留下阴影；
对所述阴影的图像信息进行采集，根据采集的所述图像信息计算得到所述电池片的实际宽度值Di。
在其中一个实施例中，在将各个所述电池片依次摆放在静止的输送带上，使每个所述电池片朝向输送方向的一侧的侧边与预设基准摆放边相重合的步骤中，包括：
对每个所述电池片朝向输送方向的一侧的侧边与所述预设基准摆放边的重合度进行检测，若所述重合度与预设重合度存在偏差，则发出警示信号。
在其中一个实施例中，在将各个所述电池片依次摆放在静止的输送带上，使每个所述电池片朝向输送方向的一侧的侧边与预设基准摆放边相重合的步骤后，还包括：
将各个所述电池片吸附在所述输送带上。
另一方面，提供了一种光伏组件生产设备，包括：
宽度检测组件，所述宽度检测组件用于对各个电池片的实际宽度进行检测，得到各个所述电池片的实际宽度值Di，其中，i为正整数；
输送带，所述输送带能够沿输送方向运转，且所述输送带具有预设基准摆 放边；
摆片机构，所述摆片机构用于将各个所述电池片依次摆放在静止的输送带上，使每个所述电池片朝向所述输送方向的一侧的侧边与所述预设基准摆放边相重合；
其中，当所述摆片机构将第i个所述电池片摆片完成后，则所述输送带沿输送方向移动一个摆片距离L后再摆放第i+1个所述电池片，其中，L＝Di+Z，Z为预设片间距。
在其中一个实施例中，所述宽度检测组件包括透光台、背光源、图像采集元件及控制器，所述背光源设置于所述透光台下方，所述图像采集元件设置于所述透光台上方，所述控制器分别与所述图像采集元件及所述输送带电性连接。
在其中一个实施例中，所述光伏组件生产设备还包括重合度检测组件及警示元件，所述重合度检测组件对每个所述电池片朝向输送方向的一侧的侧边与所述预设基准摆放边的重合度进行检测，所述重合度检测组件与所述警示元件电性连接。
在其中一个实施例中，所述重合度检测组件包括第一光发射器、第一光接收器、第二光发射器及第二光接收器，沿所述输送方向，所述第一光发射器与所述第一光接收器分别位于所述输送带相对的两侧并相互对应设置，所述第二光发射器与所述第二光接收器分别位于所述输送带相对的两侧并相互对应设置，并且，所述第一光发射器的光路与所述预设基准摆放边重合，所述第二光发射器与所述第一光发射器相邻设置并位于所述第一光发射器沿所述输送方向的一侧，所述第一光发射器及所述第二光发射器均与所述警示元件电性连接。
在其中一个实施例中，沿所述输送方向，所述输送带设有至少两个吸附通孔，每个所述电池片对应至少一个所述吸附通孔设置，所述光伏组件生产设备还包括抽真空部件，所述抽真空部件与各个所述吸附通孔均连通。
再一方面，提供了一种光伏组件，采用所述的电池串的摆片方法制得。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其它特征、目的和优点将从说明书、附图以及权利要求书变得明显。
附图说明
构成本申请的一部分的附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为一个实施例的电池串的摆片方法的流程图；
图2为一个实施例的光伏组件生产设备的主视图；
图3为图1的光伏组件生产设备的各个电池片的摆放位置示意图；
图4为图1的光伏组件生产设备的宽度检测组件的结构示意图；
图5为现有的摆片方法中两个相邻的电池片之间的片间距示意图。
附图标记说明：
100、宽度检测组件；110、透光台；120、背光源；130、图像采集元件；
200、输送带；210、预设基准摆放边；1000(1000a、1000b、1000c)、电池片。
具体实施方式
为使本申请的上述目的、特征和优点能够更加明显易懂，下面结合附图对本申请的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本申请。但是本申请能够以很多不同于在此描述的其它方式来实 施，本领域技术人员可以在不违背本申请内涵的情况下做类似改进，因此本申请不受下面公开的具体实施例的限制。
如图5所示，现有的摆片方法中，相邻的两个电池片1000同一侧的侧边之间的间距为A，通常会认为A为一个常量值，例如，当电池片1000的宽度为B时，则A＝B+C，其中，C为相邻两个电池片1000之间的理论片间距，即C＝A-B，例如，电池片1000的宽度为105mm，理论片间距为2mm，则相邻的两个电池片1000同一侧的侧边之间的间距A为107mm。由于生产误差或切割误差的影响，导致电池片1000的宽度存在误差的波动，例如，电池片1000的宽度B通常存在±0.5mm的波动，假设认为电池片1000的宽度为105mm，则电池片1000的实际宽度为104.5mm～105.5mm，即B的实际值为104.5mm～105.5mm，由于在摆片过程中相邻的两个电池片1000同一侧的侧边之间的间距A被认为是一个常量，当A被认定为107mm时，片间距C＝A-B，则C的实际值为1.5mm～2.5mm，从而导致片间距发生波动，影响整个光伏组件的产品品质。
如图1所示，在一个实施例中，提供了一种电池串的摆片方法，至少包括以下步骤：
S100、对各个电池片1000的实际宽度进行检测，得到各个电池片1000的实际宽度值Di，其中，i为正整数。如此，在进行电池串的制作过程中，先利用宽度检测组件100对各个待焊接的电池片1000的实际宽度值Di进行检测，便于后续准确地控制相邻两个电池片1000之间的片间距。
其中，宽度检测组件100对电池片1000的实际宽度值Di进行检测，可以采取现有任意一种方法或仪器实现。
在一个实施例中，在S100中，包括：S110、将电池片1000放置在透光台110上，打开背光源120以使电池片1000在透光台110上留下阴影。如此，电池片1000放置在透光台110上后，打开位于透光台110下方的LED(light-emitting  diode，发光二极管)灯等背光源120，从而使得电池片1000对透光台110的遮挡处出现阴影。S120、对阴影的图像信息进行采集，根据采集的图像信息计算得到电池片1000的实际宽度值Di。如此，利用位于透光台110上方的CCD(Charge-coupled Device，电荷耦合元件)相机等图像采集元件130对阴影的图像信息进行采集并将采集到的图像信息发送至控制器，由控制器根据采集的图像信息进行计算，从而得到该电池片1000的实际宽度值Di，如此重复，从而得到各个电池片1000的实际宽度值Di。
需要进行说明的是，对阴影的图像信息进行采集后，可以通过计算阴影所占用的像素点的个数从而得到阴影的实际宽度，进而得到电池片1000的实际宽度值，由于其属于现有的方法，在此不再赘述。
当然，在其他实施例中，还可以通过广角测量法等方法进行电池片1000的实际宽度值的检测，在此不做限制。
S200、将各个电池片1000依次摆放在静止的输送带200上，使每个电池片1000朝向输送方向的一侧的侧边与预设基准摆放边210相重合，其中，当第i个电池片1000摆片完成后，则输送带200沿输送方向移动一个摆片距离L后再摆放第i+1个电池片1000，其中，L＝Di+Z，Z为预设片间距。如此，利用机械手等摆片机构(未图示)分别将各个电池片1000摆放在静止的输送带200上的预设位置，使得各个电池片1000朝向输送带200的输送方向的一侧与该预设位置的预设基准摆放边210相重合，从而使得各个电池片1000能够从同一预设位置处进行摆片输送，并且，当前一个电池片1000摆放完成并在输送带200的输送下沿输送方向向前移动摆片距离L后再对后一个电池片1000进行摆放，如此往复进行摆片，从而使得相邻的两个电池片1000之间的片间距始终为Z，能够消除因电池片1000的宽度误差造成的影响，避免相邻两个电池片1000之间的片间距发生波动，保证光伏组件的产品品质。而且，还能准确地缩小片间距， 提高屏占比，提高光伏组件的功率和效率。
其中，预设片间距Z可以根据实际生产需要或使用需要进行灵活的设计或调整。
需要进行说明的是，将各个电池片1000依次摆放在静止的输送带200上，是指每次将电池片1000摆放在输送带200上时，输送带200处于静止状态，此时，输送带200停止运动，避免因运动造成的摆片不准问题而影响片间距。另外，将各个电池片1000沿输送方向移动一个摆片距离L后，还需要对各个电池片1000进行拉丝串焊以最终得到电池串，由于其属于现有的工艺，在此不再赘述。
可以进行理解的是，预设基准摆放边210可以是指输送带200上的某一个预设的固定位置，该预设的固定位置不会因输送带200的运转而发生位置的变化，从而使得当各个电池片1000朝向输送方向的一侧的侧边与预设基准摆放边210相重合时，使得各个电池片1000均能从同一预设位置处进行摆片输送。预设基准摆放边210可以是一条基准线或基准边。
在一个实施例中，输送带200的输送方向为从右往左输送，预设基准摆放边210可以是距离输送带200的右端预设距离处的基准线。其中，该预设距离需保证任意的一个电池片1000均能完全放置在输送带200上。
在另一个实施例中，输送带200的输送方向为从左往右输送，预设基准摆放边210可以是距离输送带200的左端预设距离处的基准线。其中，该预设距离需保证任意的一个电池片1000均能完全放置在输送带200上。
为了便于说明本申请实施例的原理，以三个电池片1000为例进行说明，不得理解为对本申请的限定，在其他实施例中，电池片1000还可以为两个、四个或更多。
如图2及图3所示，具体地，将第一个电池片1000a摆放在静止的输送带 200上，使得第一个电池片1000a朝向输送方向(如图2的F1方向所示)的一侧的侧边与预设基准摆放边210相重合，第一个电池片1000a摆放完成后，使得输送带200带动第一个电池片1000a沿输送方向向前移动D1+Z的摆片距离；接着使得输送带200静止，将第二个电池片1000b摆放在静止的输送带200上，使得第二个电池片1000b朝向输送方向的一侧的侧边与预设基准摆放边210相重合，此时，第一个电池片1000a与第二个电池片1000b之间的片间距则为Z，第二个电池片1000b摆放完成后，使得输送带200带动第一个电池片1000a和第二个电池片1000b同步沿输送方向向前移动D2+Z的摆片距离；然后使得输送带200静止，将第三个电池片1000c摆放在静止的输送带200上，使得第三个电池片1000c朝向输送方向的一侧的侧边与预设基准摆放边210相重合，此时，第三个电池片1000c与第二个电池片1000b之间的片间距则为Z。
另外，在步骤S200中，还包括：S210、对每个电池片1000朝向输送方向的一侧的侧边与预设基准摆放边210的重合度进行检测，若重合度与预设重合度存在偏差，则发出警示信号。如此，利用重合度检测组件对重合度进行检测，从而能够避免因摆放机构摆放不准导致的片间距波动，保证相邻的两个电池片1000之间的片间距为恒定的预设片间距。并且，当重合度检测组件检测到的重合度与预设重合度存在偏差时，能够使得警示元件及时发出警示信号以提醒操作人员进行停机检修，避免生产出来的整个电池串和光伏组件产品不良而造成浪费及损失。
其中，重合度检测组件可以采取光电检测或位置检测等方法对电池片1000朝向输送方向的一侧的侧边与预设基准摆放边210的重合度进行检测。
在一个实施例中，重合度检测组件包括第一光发射器(未图示)、第一光接收器(未图示)、第二光发射器(未图示)及第二光接收器(未图示)。其中，沿输送方向，第一光发射器与第一光接收器分别位于输送带200相对的两侧并 相互对应设置，第二光发射器与第二光接收器分别位于输送带200相对的两侧并相互对应设置。并且，第一光发射器的光路与预设基准摆放边210重合，第二光发射器与第一光发射器相邻设置并位于第一光发射器沿输送方向的一侧。
具体地，当电池片1000摆放在输送带200上，若电池片1000朝向输送方向的一侧的侧边与预设基准摆放边210重合，则第一光发射器的光路被遮挡且第二光发射器的光路未被遮挡，从而使得第一光接收器无法接收到光信号而第二光接收器能够接收到光信号，即可判断重合度与预设重合度不存在偏差。当电池片1000摆放在输送带200上，若电池片1000朝向输送方向的一侧的侧边相对预设基准摆放边210朝向输送方向(如图2的F1方向所示)移动一段位移时，则第一光发射器的光路被遮挡且第二光发射器的光路也被遮挡，从而使得第一光接收器无法接收到光信号而且第二光接收器也无法接收到光信号，即可判断重合度与预设重合度存在偏差。当电池片1000摆放在输送带200上，若电池片1000朝向输送方向的一侧的侧边相对预设基准摆放边210朝向背离输送方向(如图2的F2方向所示)移动一段位移时，则第一光发射器的光路未被遮挡且第二光发射器的光路也未被遮挡，从而使得第一光接收器能够接收到光信号而且第二光接收器也能够接收到光信号，即可判断重合度与预设重合度存在偏差。而且，第一光发射器及第二光发射器均与警示元件电性连接。如此，当判断重合度与预设重合度存在偏差时，则可使得警示元件及时发出警示信号以提醒操作人员进行停机检修，避免生产出来的整个电池串和光伏组件产品不良而造成浪费及损失，当判断重合度与预设重合度不存在偏差时，警示元件则保持静默状态。
此外，在步骤S200后，还包括：S300、将各个电池片1000吸附在输送带200上。如此，采取吸附的方式使得电池片1000紧紧贴合于输送带200上，避免后续输送带200带动电池片1000沿输送方向移动时电池片1000与输送带200 发生相对移动，使得电池片1000与输送带200的相对位置保持稳定，保证片间距的准确性和稳定性。
具体地，输送带200上设有吸附通孔(未图示)，当每个电池片1000依次摆放在静止的输送带200上并使得电池片1000朝向输送方向的一侧的侧边与预设基准摆放边210相重合时，每个电池片1000均对应至少一个吸附通孔，即放置在输送带200上的电池片1000在输送带200上的投影均至少覆盖了一个吸附通孔，从而当真空泵等抽真空部件(未图示)工作时，能够将各个电池片1000吸附在输送带200上，避免后续输送带200带动电池片1000沿输送方向移动时电池片1000与输送带200发生相对移动，使得电池片1000与输送带200的相对位置保持稳定，保证片间距的准确性和稳定性。
上述实施例的电池串的摆片方法，至少具有以下优点：1、能够保证相邻的两个电池片1000之间的片间距始终恒定，能够消除因电池片1000的宽度误差造成的影响，避免相邻两个电池片1000之间的片间距发生波动，保证光伏组件的产品品质，还能准确地缩小片间距，提高屏占比，提高光伏组件的功率和效率；2、能够避免因摆放机构摆放不准导致的片间距波动，保证相邻的两个电池片1000之间的片间距为恒定的预设片间距；3、能够避免输送带200带动电池片1000沿输送方向移动时电池片1000与输送带200发生相对移动，使得电池片1000与输送带200的相对位置保持稳定，保证片间距的准确性和稳定性。
如图2至图4所示，在一个实施例中，还提供了一种光伏组件生产设备，包括宽度检测组件100、输送带200及摆片机构。
其中，宽度检测组件100用于对各个电池片1000的实际宽度进行检测，得到各个电池片1000的实际宽度值Di，其中，i为正整数；输送带200能够沿输送方向运转，且输送带200具有预设基准摆放边210；摆片机构用于将各个电池片1000依次摆放在静止的输送带200上，使每个电池片1000朝向输送方向的 一侧的侧边与预设基准摆放边210相重合。同时，当摆片机构将第i个电池片1000摆片完成后，则输送带200沿输送方向移动一个摆片距离L后再摆放第i+1个电池片1000，其中，L＝Di+Z，Z为预设片间距。
上述实施例的光伏组件生产设备，进行光伏组件的制备时，先利用宽度检测组件100对各个待焊接的电池片1000的实际宽度值Di进行检测，便于后续准确地控制相邻两个电池片1000之间的片间距；再利用摆片机构分别将各个电池片1000摆放在静止的输送带200上的预设位置，使得各个电池片1000朝向输送带200的输送方向的一侧与该预设位置的预设基准摆放边210相重合，从而使得各个电池片1000能够从同一预设位置处进行摆片输送，并且，当前一个电池片1000摆放完成并在输送带200的输送下沿输送方向向前移动摆片距离L后再对后一个电池片1000进行摆放，如此往复进行摆片，从而使得相邻的两个电池片1000之间的片间距始终为Z，能够消除因电池片1000的宽度误差造成的影响，避免相邻两个电池片1000之间的片间距发生波动，保证光伏组件的产品品质，还能准确地缩小片间距，提高屏占比，提高光伏组件的功率和效率。
其中，输送带200可以为皮带、也可以为链板的形式。
如图4所示，可选地，宽度检测组件100包括透光台110、背光源120、图像采集元件130及控制器，背光源120设置于透光台110下方，图像采集元件130设置于透光台110上方，控制器分别与图像采集元件130及输送带200电性连接。如此，电池片1000放置在透光台110上后，打开位于透光台110下方的背光源120，从而使得电池片1000对透光台110的遮挡处出现阴影，利用位于透光台110上方的图像采集元件130对阴影的图像信息进行采集并将采集到的图像信息发送至控制器，由控制器根据采集的图像信息进行计算，从而得到该电池片1000的实际宽度值Di，如此重复，从而得到各个电池片1000的实际宽度值Di。
其中，控制器可以为中控台、单片机或其他具有控制功能的器件。控制器还可以控制输送带200的运转或停止，也能控制输送带200的移动距离。
另外，光伏组件生产设备还包括重合度检测组件(未图示)及警示元件(未图示)，重合度检测组件对每个电池片1000朝向输送方向的一侧的侧边与预设基准摆放边210的重合度进行检测，重合度检测组件与警示元件电性连接。如此，利用重合度检测组件对重合度进行检测，从而能够避免因摆放机构摆放不准导致的片间距波动，保证相邻的两个电池片1000之间的片间距为恒定的预设片间距。并且，当重合度检测组件检测到的重合度与预设重合度存在偏差时，能够使得警示元件及时发出警示信号以提醒操作人员进行停机检修，避免生产出来的整个电池串和光伏组件产品不良而造成浪费及损失。
其中，警示元件可以为蜂鸣器等能发出声音类警示信息的元件，也可以是警示灯等能发出光线类警示信息的元件。电性连接的方式可以通过导线连接，也可以通过无线传输等方式实现。
此外，沿输送方向，输送带200设有至少两个吸附通孔，每个电池片1000对应至少一个吸附通孔设置，光伏组件生产设备还包括抽真空部件，抽真空部件与各个吸附通孔均连通。如此，当每个电池片1000依次摆放在静止的输送带200上并使得电池片1000朝向输送方向的一侧的侧边与预设基准摆放边210相重合时，每个电池片1000均对应至少一个吸附通孔，即放置在输送带200上的电池片1000在输送带200上的投影均至少覆盖了一个吸附通孔，从而当真空泵等抽真空部件工作时，能够将各个电池片1000吸附在输送带200上，避免后续输送带200带动电池片1000沿输送方向移动时电池片1000与输送带200发生相对移动，使得电池片1000与输送带200的相对位置保持稳定，保证片间距的准确性和稳定性。
在一个实施例中，还提供了一种光伏组件，采取上述电池串的摆片方法制 得。
上述实施例的光伏组件，能够保证相邻的两个电池片1000之间的片间距始终恒定，能够消除因电池片1000的宽度误差造成的影响，避免相邻两个电池片1000之间的片间距发生波动，保证光伏组件的产品品质，还能准确地缩小片间距，提高屏占比，提高光伏组件的功率和效率。
需要说明的是，“某体”、“某部”可以为对应“构件”的一部分，即“某体”、“某部”与该“构件的其他部分”一体成型制造；也可以与“构件的其他部分”可分离的一个独立的构件，即“某体”、“某部”可以独立制造，再与“构件的其他部分”组合成一个整体。本申请对上述“某体”、“某部”的表达，仅是其中一个实施例，为了方便阅读，而不是对本申请的保护的范围的限制，只要包含了上述特征且作用相同应当理解为是本申请等同的技术方案。
需要说明的是，本申请“单元”、“组件”、“机构”、“装置”所包含的构件亦可灵活进行组合，即可根据实际需要进行模块化生产，以方便进行模块化组装。本申请对上述构件的划分，仅是其中一个实施例，为了方便阅读，而不是对本申请的保护的范围的限制，只要包含了上述构件且作用相同应当理解是本申请等同的技术方案。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。本申请中使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”、“设置于”、“固设于”或“安设于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。进一步地，当一个元件被认为是“固定传动连接”另一个元件，二者可以是可拆卸连接方式的固定，也可以不可拆卸连接的固定，能够实现动力传递即可，如套接、卡接、一体成型固定、焊接等，在现有技术中可以实现，在此不再累赘。当元件与另一个元件相互垂直或近似垂直是指二者的理想状态是垂直，但是因制造及装配的影响，可以存在一定的垂直误差。 本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。本文所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
还应当理解的是，在解释元件的连接关系或位置关系时，尽管没有明确描述，但连接关系和位置关系解释为包括误差范围，该误差范围应当由本领域技术人员所确定的特定值可接受的偏差范围内。例如，“大约”、“近似”或“基本上”可以意味着一个或多个标准偏差内，在此不作限定。
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种电池串的摆片方法，包括以下步骤：
    对各个电池片的实际宽度进行检测，得到各个所述电池片的实际宽度值Di，其中，i为正整数；
    将各个所述电池片依次摆放在静止的输送带上，使每个所述电池片朝向输送方向的一侧的侧边与预设基准摆放边相重合，其中，当第i个所述电池片摆片完成后，则所述输送带沿输送方向移动一个摆片距离L后再摆放第i+1个所述电池片，其中，L＝Di+Z，Z为预设片间距。
  2. 根据权利要求1所述的电池串的摆片方法，其中，在对各个电池片的实际宽度进行检测，得到各个所述电池片的实际宽度值Di的步骤中，包括：
    将所述电池片放置在透光台上，打开背光源以使所述电池片在透光台上留下阴影；
    对所述阴影的图像信息进行采集，根据采集的所述图像信息计算得到所述电池片的实际宽度值Di。
  3. 根据权利要求1或2所述的电池串的摆片方法，其中，在将各个所述电池片依次摆放在静止的输送带上，使每个所述电池片朝向输送方向的一侧的侧边与预设基准摆放边相重合的步骤中，包括：
    对每个所述电池片朝向输送方向的一侧的侧边与所述预设基准摆放边的重合度进行检测，若所述重合度与预设重合度存在偏差，则发出警示信号。
  4. 根据权利要求1至3任一项所述的电池串的摆片方法，其中，在将各个所述电池片依次摆放在静止的输送带上，使每个所述电池片朝向输送方向的一侧的侧边与预设基准摆放边相重合的步骤后，还包括：
    将各个所述电池片吸附在所述输送带上。
  5. 一种光伏组件生产设备，包括：
    宽度检测组件，所述宽度检测组件用于对各个电池片的实际宽度进行检测，得到各个所述电池片的实际宽度值Di，其中，i为正整数；
    输送带，所述输送带能够沿输送方向运转，且所述输送带具有预设基准摆放边；
    摆片机构，所述摆片机构用于将各个所述电池片依次摆放在静止的输送带上，使每个所述电池片朝向所述输送方向的一侧的侧边与所述预设基准摆放边相重合；
    其中，当所述摆片机构将第i个所述电池片摆片完成后，则所述输送带沿输送方向移动一个摆片距离L后再摆放第i+1个所述电池片，其中，L＝Di+Z，Z为预设片间距。
  6. 根据权利要求5所述的光伏组件生产设备，其中，所述宽度检测组件包括透光台、背光源、图像采集元件及控制器，所述背光源设置于所述透光台下方，所述图像采集元件设置于所述透光台上方，所述控制器分别与所述图像采集元件及所述输送带电性连接。
  7. 根据权利要求5或6所述的光伏组件生产设备，其中，所述光伏组件生产设备还包括重合度检测组件及警示元件，所述重合度检测组件对每个所述电池片朝向输送方向的一侧的侧边与所述预设基准摆放边的重合度进行检测，所述重合度检测组件与所述警示元件电性连接。
  8. 根据权利要求7所述的光伏组件生产设备，其中，所述重合度检测组件包括第一光发射器、第一光接收器、第二光发射器及第二光接收器，沿所述输送方向，所述第一光发射器与所述第一光接收器分别位于所述输送带相对的两侧并相互对应设置，所述第二光发射器与所述第二光接收器分别位于所述输送带相对的两侧并相互对应设置，并且，所述第一光发射器的光路与所述预设基准摆放边重合，所述第二光发射器与所述第一光发射器相邻设置并位于所述第 一光发射器沿所述输送方向的一侧，所述第一光发射器及所述第二光发射器均与所述警示元件电性连接。
  9. 根据权利要求5至8任一项所述的光伏组件生产设备，其中，沿所述输送方向，所述输送带设有至少两个吸附通孔，每个所述电池片对应至少一个所述吸附通孔设置，所述光伏组件生产设备还包括抽真空部件，所述抽真空部件与各个所述吸附通孔均连通。
  10. 一种光伏组件，其中，采用如权利要求1至4任一项所述的电池串的摆片方法制得。
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