CN219403044U - Solar cell string welding tool - Google Patents
Solar cell string welding tool Download PDFInfo
- Publication number
- CN219403044U CN219403044U CN202320860796.2U CN202320860796U CN219403044U CN 219403044 U CN219403044 U CN 219403044U CN 202320860796 U CN202320860796 U CN 202320860796U CN 219403044 U CN219403044 U CN 219403044U
- Authority
- CN
- China
- Prior art keywords
- heating
- pressing needle
- solar cell
- cell string
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000003466 welding Methods 0.000 title claims abstract description 88
- 238000010438 heat treatment Methods 0.000 claims abstract description 99
- 238000003825 pressing Methods 0.000 claims abstract description 59
- 229910000679 solder Inorganic materials 0.000 claims abstract description 15
- 239000002826 coolant Substances 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 6
- 239000012141 concentrate Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000000112 cooling gas Substances 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000143432 Daldinia concentrica Species 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910021392 nanocarbon Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a solar cell string welding tool which comprises a shell, a heating source and a pressing needle, wherein the heating source and the pressing needle are arranged on the shell, a through hole is formed in the bottom of the shell, the top of the pressing needle is connected with the heating source through the through hole, and the heating source is used for heating the pressing needle. Through setting up the through-hole installation pressure needle at the shell, through setting up the heating source and heating the pressure needle, the narrow problem of process window when having solved the welding temperature sensitive battery among the traditional welding mode of going up the heating of infrared heating lower heating plate heating, give the welding press heating function, concentrate the heating in the solder joint position, reduced the welding degree of difficulty.
Description
Technical Field
The utility model relates to the technical field of manufacturing of photovoltaic modules, in particular to a solar cell string welding tool.
Background
In the use process of the photovoltaic module, the battery pieces are required to be welded to form a battery string, and then the battery string is connected with a junction box to form the module.
The existing crystalline silicon solar cell is usually welded by adopting an upper infrared heating mode and a lower heating plate mode, and a welding strip is required to be fixed by using a pressing tool during welding so as to avoid rolling of the welding strip and ensure that the welding strip and a welding spot are in contact with each other.
However, when the press is pressed against the solder strip, the press will block infrared light, resulting in a lower temperature at the solder joint than at other non-blocked locations, which may cause the temperature of the non-solder area to exceed the tolerance temperature for temperature sensitive solar cells, while the solder joint temperature has not yet reached the soldering temperature.
Therefore, a new welding method needs to be developed to avoid the problem of narrow process window of the existing welding method.
Disclosure of Invention
The utility model aims to provide a solar cell string welding tool, which solves the problem of narrow process window of the existing welding mode, improves welding quality and welding efficiency, and reduces assembly cost.
In order to solve the technical problems, the embodiment of the utility model provides a solar cell string welding tool, which comprises a shell, a heating source and a pressing needle, wherein the heating source and the pressing needle are arranged on the shell, a through hole is formed in the bottom of the shell, the top of the pressing needle is connected with the heating source through the through hole, and the heating source is used for heating the pressing needle.
The welding device further comprises a groove which is arranged at the bottom of the pressing needle and used for fixing the welding strip.
Wherein the shape of the groove is triangle, rectangle, U-shape or trapezoid
The heating source is a heating or cooling medium or a heating sleeve arranged in the shell through an injection port of the shell, the heating or cooling medium conducts heat through contact with the pressing needle, the heating sleeve is arranged at the top of the pressing needle, and the pressing needle is heated through an internal heating wire.
The seal ring is arranged in the through hole and used for sealing the shell and the pressing needle.
Wherein the through hole and the injection opening are the same opening or different openings
The device also comprises a spring arranged between the shell and the pressing needle.
The pressing needle is an I-shaped pressing needle, the spring is arranged between the lower end of the top of the pressing needle and the upper end of the bottom of the pressing needle, and the spring is arranged in the shell or outside the shell.
Wherein the shell is a metal shell or a ceramic shell.
Wherein the press needle is a copper press needle, an iron press needle or an alloy press needle.
The height limiting structure is arranged on the inner periphery and the outer periphery of the shell.
Compared with the prior art, the solar cell string welding tool provided by the embodiment of the utility model has the following advantages:
solar cell series welding frock through set up the through-hole installation at the shell and press the needle, heats the needle through setting up the heating source, has solved the narrow problem of process window when welding temperature sensitive battery in the welding mode of heating of hot plate under the traditional last infrared heating, gives the welding presser heating function, will heat and concentrate in the solder joint position, through setting up the needle of pressing, has reduced the welding degree of difficulty.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an embodiment of a solar cell string welding tool according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of a welding structure of an embodiment of a solar cell string welding tool according to an embodiment of the present utility model;
fig. 3 is a schematic bottom view of an embodiment of a solar cell string welding tool according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of an electric heating pin of a solar cell string welding tool according to an embodiment of the present utility model;
the device comprises a shell 11, a heating or cooling medium 12, a pressing needle 13, a sealing ring 14, a spring 15, a pressing needle groove 16, a height limiting structure 17, a welding strip 31, a battery plate 32, a heating plate 33, a heating sleeve 41 and an electrode outgoing line 42.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of an embodiment of a solar cell string welding tool according to an embodiment of the present utility model; fig. 2 is a schematic diagram of a welding structure of an embodiment of a solar cell string welding tool according to an embodiment of the present utility model; fig. 3 is a schematic bottom view of an embodiment of a solar cell string welding tool according to an embodiment of the present utility model; fig. 4 is a schematic structural diagram of an electric heating pin of a solar cell string welding tool according to an embodiment of the present utility model.
In a specific embodiment, the solar cell string welding fixture comprises a housing 11, a heating source arranged on the housing 11, and a pressing needle 13, wherein a through hole is formed in the bottom of the housing 11, the top of the pressing needle 13 is connected with the heating source through the through hole, and the heating source is used for heating the pressing needle 13.
Through set up through-hole installation pressure needle 13 at shell 11, through setting up the heating source and heating pressure needle 13, the narrow problem of process window when welding temperature sensitive battery in the welding mode of heating plate 33 under the traditional upper infrared heating has been solved, endows the welding presser heating function, will heat and concentrate in the solder joint position, through setting up pressure needle 13, has reduced the welding degree of difficulty.
The present application adopts a local heating method, that is, the pressing needle 13 is pressurized by a heating source, so as to fix the solder strip 31, and the structure and the mounting method of the heating source are not limited.
In order to solve this technical problem, in one embodiment, the solar cell string welding tool further includes a groove 16 provided at the bottom of the pressing pin 13 for fixing the welding strip 31.
The welding strip 31 can be fixed through the grooves, so that the welding strip cannot move in the welding process, and the welding efficiency and the welding quality are improved.
The shape of the groove is not limited in the application, and the shape of the groove is triangle, rectangle, U-shape or trapezoid, or other current situations.
In this application, the heating is performed by a heating source, and the heating mode and structure of the heating source are not limited, in one embodiment, the heating source is a heating or cooling medium 12 or a heating jacket 41 disposed in the housing 11 through an injection port disposed in the housing 11, the heating or cooling medium 12 is in contact with the pressing needle 13 to conduct heat, the heating jacket 41 is disposed at the top of the pressing needle 13, and the pressing needle 13 is heated by an internal heating wire.
In one embodiment, the heating source is electrically heated, and the electrode lead wire 42 is connected with the heating sleeve 41 and then electrically heated by contacting the heating sleeve 41 with the pressing needle 13.
The heating source may also have other configurations.
In the above-described configuration, the heating or cooling medium 12 may be used to heat the pressing needle 13 by heating or cooling the medium 12 and then conducting heat to the pressing needle 13, or the heating of the pressing needle 13 may be achieved by energizing the heating wire of the heating jacket 41.
The temperature control of the pressing needle 13 can be realized by controlling a temperature sensor, power control and the like.
Because of the potential use of the heating or cooling medium 12 in this application, leakage can easily occur and subsequent maintenance is inconvenient.
To solve this problem, in one embodiment, the solar cell string welding fixture further includes a sealing ring 14 disposed in the through hole for sealing the housing 11 and the press pin 13.
Through the setting of sealing washer 14, avoid liquid outflow and be convenient for change pressure needle 13, improve the convenience of use.
The size and the material of the seal ring 14 are not limited, and the rubber seal ring 14 is generally adopted.
In this application, the pressure needle is fixed by a through hole, the heating or cooling medium 12 is injected through the injection port, the size and the position of the heating or cooling medium are not limited in this application, and the through hole and the injection port are the same opening or different openings.
The two different functions can be realized through the same opening, and different openings can be arranged at different positions, so that a worker can select proper quantity and positions according to the needs in the process, if the same opening is adopted, different functions are realized, the reduction of the processing amount of the opening can be realized, and a plurality of openings are adopted, so that the injection of a medium and the installation of a pressing needle can not be mutually influenced, and the process difficulty is reduced.
In order to avoid damage to the battery plate 32 caused by collision impact during contact of the battery plate 32, in one embodiment, the solar cell string welding fixture further comprises a spring 15 arranged between the housing 11 and the pressing pin 13.
By arranging the spring 15, soft contact between the pressing needle 13 and the battery piece 32 is realized, after collision, the spring 15 is compressed, the impact force is reduced, the damage to the battery piece 32 is reduced, and the spring 15 has the function of enabling all the pressing needles 13 to be in contact with the welding strip 31.
The position and size of the spring 15 are not limited in this application.
The shape of the pressing needle 13 is not limited by the size, in one embodiment, the pressing needle 13 is an i-shaped pressing needle 13, the spring 15 is disposed between the top lower end and the bottom upper end of the pressing needle 13, and the spring 15 is disposed inside the housing 11 or outside the housing 11.
The operator can select the proper arrangement of the springs 15 as desired.
The shell 11 in the present application is used as a carrier of other components, and the size and the material of the shell are not limited, the shell 11 is a metal shell 11 or a ceramic shell 11, and the thermal conductivity and the heat dissipation coefficient of the shell 11 should be as low as possible, so as to reduce heat loss.
The type of heating or cooling medium 12 is not limited in this application, and the specific heat capacity of the heat conducting liquid should be as high as possible, so as to avoid the temperature from dropping too fast, and the heating or cooling medium 12 is typically aromatic hydrocarbon heat conducting oil or heat conducting liquid containing nano carbon balls.
The material to the presser 13 is not limited in this application, and heat is transmitted to the solder strip 31 through the presser 13, the presser 13 is copper presser 13, iron presser 13 or alloy presser 13, and the presser 13 adopts metals such as copper iron and alloy thereof to obtain higher coefficient of heat conductivity.
Still further, in order to avoid damage to the battery pieces 32 caused by excessive lowering of the solar cell string welding tool, in one embodiment, the solar cell string welding tool further includes a height limiting structure 17 disposed at the inner and outer peripheries of the housing 11.
Through setting up limit for height structure 17 for can control the biggest range of pressure needle 13, avoid too big causing the damage, utilize limit for height structure 17 to control the pressure when welding.
The installation mode, material and size of the height limiting structure 17 are not limited, and the height limiting structure can be arranged all around or only one pair of sides.
The use flow of the assembly welding tool in one embodiment of the application is as follows:
step one: preheating the tool to ensure that the temperature of the tool reaches the same temperature as the heating medium
Step two: injecting a heating medium with the temperature meeting the welding requirement into the tool;
step three: the welding strip 31 is laid on the front and back surfaces of the battery piece 32 and is placed on a heating platform with a certain initial temperature
Step four: placing the heating tool above the battery piece 32 to enable the groove 16 of the pressing needle 13 to correspond to the welding strip 31 in position;
step five: raising the temperature of the heating platform to the temperature required by welding, keeping the temperature for a period of time, melting the solder on the surface of the solder strip 31 or solidifying the conductive adhesive, and the like;
step six: filling cooling gas into the tool and discharging heating medium, and reducing the temperature of the heating platform to realize the electrical connection between the welding strip 31 and the battery piece 32
Step seven: returning to the first step.
Repeating the steps until the welding of the battery strings is completed.
In another embodiment, the operational flow is as follows:
step one: preheating the tool to enable the temperature of the tool to reach the welding temperature;
step two: energizing to heat the press pin 13 to a welding temperature;
step three: the welding strip 31 is paved on the front and back surfaces of the battery piece 32 and is placed on a heating platform, and the heating platform has a certain initial temperature;
step four: placing the heating tool above the battery piece 32 to enable the groove 16 of the pressing needle 13 to correspond to the welding strip 31 in position;
step five: raising the temperature of the heating platform to the temperature required by welding, keeping the temperature for a period of time, melting the solder on the surface of the solder strip 31 or solidifying the conductive adhesive, and the like;
step six: stopping heating the pin 13, filling cooling gas into the tool to cool the pin 13, and reducing the temperature of the heating platform to realize the electrical connection between the welding strip 31 and the battery piece 32;
step seven: returning to the first step;
repeating the steps until the welding of the battery strings is completed.
To sum up, the solar cell string welding frock that this application embodiment provided through set up the through-hole installation at the shell and press the needle, heats the needle through setting up the heating source, has solved the narrow problem of process window when welding temperature sensitive battery in the welding mode of heating plate heating under the traditional last infrared heating, gives the welding press heating function, concentrates the heating in the solder joint position, through setting up the needle, utilizes the recess fixed welding area that the needle bottom set up to press, has reduced the welding degree of difficulty.
The solar cell string welding tool provided by the utility model is described in detail above. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (10)
1. The solar cell string welding tool is characterized by comprising a shell, a heating source and a pressing needle, wherein the heating source is arranged in the shell, the shell is provided with a through hole for installing the pressing needle, the top of the pressing needle is contacted with the heating source through the through hole, and the heating source is used for heating the pressing needle.
2. The solar cell string welding tool of claim 1, further comprising a groove provided at the bottom of the press pin for fixing a solder strip.
3. The solar cell string welding tool of claim 2, wherein the groove is triangular, rectangular, U-shaped or trapezoidal in shape.
4. The solar cell string welding tool according to claim 3, wherein the heating source is a heating or cooling medium or a heating jacket arranged in the shell through an injection port arranged in the shell, the heating or cooling medium conducts heat through contact with the pressing needle, the heating jacket is arranged at the top of the pressing needle, and the pressing needle is heated through an internal heating wire.
5. The solar cell string welding tool of claim 4, further comprising a sealing ring disposed in the through hole for sealing the housing from the press pin.
6. The solar cell string welding tool of claim 5, wherein the through hole and the injection port are the same opening or different openings.
7. The solar cell string welding tool of claim 6, further comprising a spring disposed between the housing and the press pin.
8. The solar cell string welding tool according to claim 7, wherein the pressing needle is an i-shaped pressing needle, the pressing needle is a copper pressing needle, an iron pressing needle or an alloy pressing needle, the spring is arranged between the top lower end and the bottom upper end of the pressing needle, and the spring is arranged in the shell or outside the shell.
9. The solar cell string welding tool of claim 8, wherein the housing is a metal housing or a ceramic housing.
10. The solar cell string welding tool of claim 9, further comprising a height limiting structure disposed at an inner periphery and an outer periphery of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320860796.2U CN219403044U (en) | 2023-04-13 | 2023-04-13 | Solar cell string welding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320860796.2U CN219403044U (en) | 2023-04-13 | 2023-04-13 | Solar cell string welding tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219403044U true CN219403044U (en) | 2023-07-25 |
Family
ID=87236942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320860796.2U Active CN219403044U (en) | 2023-04-13 | 2023-04-13 | Solar cell string welding tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219403044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116722068A (en) * | 2023-08-07 | 2023-09-08 | 正泰新能科技有限公司 | Photovoltaic module packaging method, organic silicon adhesive film and packaged photovoltaic module |
-
2023
- 2023-04-13 CN CN202320860796.2U patent/CN219403044U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116722068A (en) * | 2023-08-07 | 2023-09-08 | 正泰新能科技有限公司 | Photovoltaic module packaging method, organic silicon adhesive film and packaged photovoltaic module |
| CN116722068B (en) * | 2023-08-07 | 2023-11-03 | 正泰新能科技有限公司 | Photovoltaic module packaging method, organic silicon adhesive film and packaged photovoltaic module |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314400 No. 1 Jisheng Road, Jiaxing City, Zhejiang Province, Jianshan New District, Haining City Patentee after: Zhengtai Xinneng Technology Co.,Ltd. Address before: 314400 No. 1 Jisheng Road, Jiaxing City, Zhejiang Province, Jianshan New District, Haining City Patentee before: Zhengtai Xinneng Technology Co.,Ltd. |