Heating lamp box and battery piece welding device

Abstract

The utility model provides a heating lamp box and a battery piece welding device.The heating lamp box comprises a heating mechanism and a ventilation mechanism, the heating mechanism is provided with at least one heating area, and a temperature measuring unit used for measuring the temperature of the heating area is arranged in each heating area; the ventilation mechanism is configured to conduct independent ventilation on all the heating areas, and the ventilation mechanism is further configured to control the ventilation flow leading to the corresponding heating areas according to the temperature measurement result of the temperature measurement unit so as to adjust the temperature of the corresponding heating areas. The heating lamp box can solve the problem of local overheating caused by the fact that a heating lamp box in the prior art cannot control the temperature of a heating area in real time, the battery piece welding device adopting the heating lamp box can effectively improve the welding quality of photovoltaic battery pieces, defects caused by uneven temperature are reduced, the production efficiency is improved, and the production cost is reduced. And the production cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic cell production, and more specifically, to a heating light box and a cell welding device. Background Art

[0002] During the photovoltaic cell production process, cells are typically welded together to form cell strings. The quality of this welding process directly impacts the performance of the resulting string. To ensure welding quality, the heating process is crucial. Currently, heating devices such as infrared lamps are commonly used to heat the cells and solder ribbons. However, in practice, existing heating equipment often exhibits uneven heating due to limited temperature control options. This uneven heating can cause localized overheating or underheating of the cell or ribbon, compromising weld quality or even leading to weld failure. Furthermore, improper temperature control can cause localized overheating during welding, potentially damaging the equipment or affecting product consistency.

[0003] In existing technology, to control heating uniformity, the arrangement of infrared lamps is often adjusted to achieve temperature balance. However, this approach often lacks flexibility and struggles to adapt to complex production environment changes. For example, during the production process, the temperature distribution in the infrared lamp heating area may deviate due to changes in equipment age, ambient temperature, and other factors, resulting in poor welding results. Especially in high-temperature areas, even small temperature fluctuations can affect welding quality. Existing temperature control measures struggle to dynamically adjust the temperature in real time, and therefore cannot effectively address the issue of uneven heating. Utility Model Content

[0004] The purpose of this application is to provide a heating lamp box to solve the problem that the heating lamp box in the prior art cannot control the temperature of the heating area in real time, thereby causing local overheating. In addition, another purpose of this application is to provide a battery cell welding device.

[0005] To achieve this goal, this application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a heating light box, which includes a heating mechanism and a ventilation mechanism, wherein:

[0007] The heating mechanism has at least one heating zone, and each heating zone is provided with a temperature measuring unit for measuring the temperature of the heating zone;

[0008] The ventilation mechanism is configured to independently ventilate each heating zone, and is further configured to control the ventilation flow to the corresponding heating zone according to the temperature measurement result of the temperature measuring unit to adjust the temperature of the corresponding heating zone.

[0009] By independently monitoring and adjusting the temperature of each heating zone, the uniformity of the heating process can be significantly improved, reducing welding quality problems caused by local temperature unevenness.

[0010] Optionally, the heating mechanism includes at least two heating zones;

[0011] The ventilation mechanism includes at least two ventilation components corresponding to the heating zones one by one, and each ventilation component is configured to ventilate the corresponding heating zone based on the temperature of the corresponding heating zone.

[0012] The ventilation components corresponding to each heating zone can independently adjust their ventilation flow rate to achieve precise temperature control. This design effectively adapts to changes in the production environment and ensures that the temperature of each heating zone is maintained within the set range.

[0013] Optionally, the ventilation assembly includes a ventilation pipe and an air supply unit, wherein: the air supply unit is provided on the ventilation pipe, and an air outlet of the ventilation pipe is in communication with the corresponding heating zone;

[0014] The air supply unit is connected to the temperature measuring unit signal in the corresponding heating zone, and the air supply unit controls the ventilation flow of the ventilation pipe based on the temperature value provided by the temperature measuring unit.

[0015] By connecting the air supply unit to the temperature measurement unit, the air volume in the ventilation duct can be adjusted in real time based on the temperature value provided by the temperature measurement unit, thereby precisely controlling the temperature of each heating zone. This precise control can effectively improve the consistency of welding results and enhance welding quality.

[0016] Optionally, the heating lamp box further includes a lifting mechanism for driving the heating mechanism to move up and down, the lifting mechanism including a fixing plate and a driving unit provided on the fixing plate, wherein:

[0017] The heating mechanism is slidably connected to the fixed plate and is transmission-connected to a driving unit arranged on the fixed plate. The driving unit is used for driving the heating mechanism to slide and rise and fall along the fixed plate.

[0018] The lifting mechanism allows the heating mechanism to be adjusted in height according to the thickness or size of the welded parts, enhancing the flexibility and adaptability of the production line. Furthermore, the automatic lifting of the drive unit reduces the tediousness of manual operation and improves the convenience and efficiency of operation. The automated adjustment method reduces human error and improves the safety and consistency of operation.

[0019] Optionally, the heating mechanism includes at least one heating cavity, each heating cavity is provided with a heating unit, and each heating cavity forms a corresponding heating zone;

[0020] An air distribution component is also provided in the heating chamber and is located between the ventilation mechanism and the heating unit. The air distribution component includes at least one air distribution plate, and a through hole is provided on the air distribution plate.

[0021] Through the design of the air distribution plate, the air flow can be blown out evenly from the downward side of the heating chamber.

[0022] Optionally, the air distribution assembly includes a first air distribution plate and a second air distribution plate that are spaced apart, wherein:

[0023] The first air balancing plate is provided with a plurality of first through holes, and the second air balancing plate is provided with a plurality of second through holes, wherein the diameter of the first through holes is larger than that of the second through holes;

[0024] The first air balancing plate is arranged closer to the ventilation mechanism than the second air balancing plate, so that the air introduced by the ventilation mechanism passes through the first through hole on the first air balancing plate and the second through hole on the second air balancing plate and then blows onto the heating unit.

[0025] Through the design of the first air equalizing plate and the second air equalizing plate, the airflow can reach the heating unit after two stages of equalization treatment, thereby achieving more uniform airflow distribution and avoiding uneven heating caused by concentrated airflow.

[0026] Optionally, the heating unit is an infrared lamp tube, a cooling tube is provided on the side of the infrared lamp tube, and a plurality of blowing holes are provided on the side of the cooling tube facing the infrared lamp tube for blowing air into the infrared lamp tube.

[0027] The effective heat dissipation of the cooling tube can prevent the infrared lamp from overheating, thereby ensuring that the infrared lamp works in the best condition and improving the heating efficiency. The stable heating effect helps to maintain the consistency and reliability of the heating process. In addition, it can also prevent the infrared lamp from shortening its service life due to overheating, thereby extending the service life of the infrared lamp and reducing the number of replacements of the infrared lamp, thereby saving costs.

[0028] Optionally, the heating mechanism further includes heat insulation panels arranged around the heating area.

[0029] The insulation board can effectively reduce heat loss and ensure that most of the heat is concentrated in the heating area, thereby improving heating efficiency. Higher heating efficiency means less energy consumption and better heating effect.

[0030] In addition, the thermal insulation board can prevent high temperature from damaging the heating equipment and its surrounding environment, reducing the safety hazards caused by overheating; the thermal insulation board can effectively protect the normal operation of the equipment and improve the safety of the system.

[0031] In a second aspect, the present application further proposes a cell welding device, characterized in that the cell welding device includes a welding conveying mechanism and the above-mentioned heating lamp box,

[0032] The welding conveyor mechanism is configured to convey the battery cells and welding ribbons that have been stacked in a predetermined manner. A series connection station is provided on the conveying path of the welding conveyor mechanism, and a heating lamp box is provided at the series connection station.

[0033] The heating light box is used to heat the battery cells and welding strips stacked in a predetermined manner at the serial connection station, so that the welding strips are cured on the battery cells after being heated.

[0034] By independently monitoring and adjusting the temperature of each heating zone of the heating lamp box, it is possible to ensure uniform curing of the solder ribbon on the battery cell, thereby improving welding quality and reliability.

[0035] In addition, the coordinated work of the welding conveying mechanism and the heating light box can realize continuous automatic welding, significantly improving production efficiency; the stable conveying system and efficient heating process reduce manual intervention and shorten the production cycle.

[0036] Optionally, the cell welding device further includes an exhaust mechanism, which is used to exhaust air from the serial connection station;

[0037] The exhaust mechanism is installed on the heating lamp box, or the exhaust mechanism is installed on the side of the serial connection station via an independent installation bracket.

[0038] The exhaust mechanism can extract the waste gas generated during the welding process and assist in cooling, thereby improving the operating environment and protecting the health of the operators. In addition, the negative pressure effect of the exhaust mechanism can reduce the air flow in the welding area, improve the heating efficiency, and thus improve the welding quality.

[0039] Compared with the prior art, the beneficial effects of the technical solution of the utility model are:

[0040] 1. By setting up multiple heating zones and corresponding ventilation mechanisms, using a temperature measurement unit to monitor the temperature in real time and dynamically adjust the air intake volume, the temperature of each heating zone is ensured to be uniform and stable, effectively solving the welding quality problem caused by uneven heating in the existing technology, and improving the reliability of the welding process and the consistency of the product;

[0041] 2. The cooling pipe and air distribution assembly designed in this utility model can not only effectively cool the heating unit, but also make the ventilation more uniform through the function of the air distribution plate, further optimize the heat distribution and extend the service life of the equipment;

[0042] 3. By setting up an exhaust mechanism in the heating area, the waste gas generated during the welding process can be removed in time, reducing the accumulation of harmful gases, while assisting in cooling, which helps to improve the safety of the working environment and production efficiency;

[0043] 4. The utility model also makes the operation of the equipment more flexible and convenient through the design of the lifting mechanism and the welding conveying mechanism, reduces the downtime, and thus improves the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a schematic diagram of the three-dimensional structure of the heating light box provided in an embodiment of the present application;

[0045] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the heating light box from another perspective is shown;

[0046] Figure 3 This is a schematic diagram of the three-dimensional structure of the heating mechanism in the heating light box provided in an embodiment of the present application;

[0047] Figure 4 yes Figure 3 A schematic diagram of the three-dimensional structure of the heating mechanism shown in another perspective;

[0048] Figure 5 yes Figure 3 A schematic cross-sectional view of the heating mechanism shown;

[0049] Figures 1 to 5 The following reference numerals are included:

[0050] Heating mechanism 1:

[0051] Heating zone 101, temperature measuring unit 102, heating chamber 103, first air balancing plate 104, second air balancing plate 105, heating unit 106, cooling tube 107, heat insulation plate 108;

[0052] Ventilation mechanism 2:

[0053] Ventilation pipe 201, air supply unit 202;

[0054] Fixed plate 3;

[0055] Drive unit 4;

[0056] Mounting frame 5. DETAILED DESCRIPTION

[0057] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0058] During the photovoltaic cell production process, cells are welded together to form cell strings. The quality of this welding directly impacts the performance and overall efficiency of the resulting cell string. Therefore, the heating process plays a crucial role in the production process, especially during the welding stage. Ensuring an appropriate and uniform temperature during the welding process is key to achieving high-quality welds.

[0059] Currently, the industry generally uses heating lamps to heat cells and solder ribbons. However, in practice, these lamps have significant limitations, particularly in terms of temperature control. Existing lamps often struggle to achieve uniform heating, resulting in variations in temperature distribution across the heated area. This uneven heating can cause localized overheating or underheating of the cell. This localized temperature imbalance not only affects welding quality but can also alter the physical properties of the cell, impacting the electrical performance of the entire battery string.

[0060] Therefore, if Figure 1 As shown, the present application proposes a heating light box, which includes a heating mechanism 1 and a ventilation mechanism 2, wherein:

[0061] The heating mechanism 1 has at least one heating zone 101, each of which is provided with a temperature measuring unit 102 for measuring the temperature of the heating zone 101. The multiple heating zones 101 are provided to take into account the different heat requirements of different zones during the welding process, so as to enable independent temperature adjustment. The layout of the heating zones 101 can be designed according to the size of the actual production equipment and the placement of the battery cells.

[0062] The temperature measuring unit 102 may use not only a traditional thermocouple but also other types of temperature sensors, such as a thermistor (RTD), an infrared temperature sensor, a thermopile, etc. These temperature measuring units 102 can provide high-precision and fast-response temperature measurement to ensure that the temperature information of each heating zone 101 can be fed back in real time.

[0063] The ventilation mechanism 2 is configured to independently ventilate each heating zone 101 . The ventilation mechanism 2 is further configured to control the ventilation flow to the corresponding heating zone 101 according to the temperature measurement result of the temperature measuring unit 102 to adjust the temperature of the corresponding heating zone 101 .

[0064] By independently monitoring and adjusting the temperature of each heating zone 101, the uniformity of the heating process can be significantly improved, and welding quality problems caused by local temperature unevenness can be reduced; and the independent adjustment function of the ventilation mechanism 2 enables the heating lamp box to adapt to complex production environment changes and provide more precise temperature control. This flexibility reduces the impact of environmental changes and improves production consistency.

[0065] like Figure 2 As shown, the heating mechanism 1 includes at least two heating zones 101;

[0066] The ventilation mechanism 2 includes at least two ventilation components corresponding to the heating zones 101 , and each ventilation component is configured to ventilate the corresponding heating zone 101 based on the temperature of the corresponding heating zone 101 .

[0067] The ventilation components corresponding to each heating zone 101 can independently adjust their ventilation flow rate to achieve precise temperature control. This design can effectively cope with changes in the production environment and ensure that the temperature of each heating zone 101 is maintained within the set range.

[0068] Continue to refer Figure 2 As shown, the ventilation assembly includes a ventilation pipe 201 and an air supply unit 202, wherein: the air supply unit 202 is arranged on the ventilation pipe 201, and the air outlet of the ventilation pipe 201 is connected to the corresponding heating area 101;

[0069] The air supply unit 202 is connected to the temperature measuring unit 102 in the corresponding heating zone 101 by signal. The air supply unit 202 controls the ventilation flow of the ventilation pipe 201 based on the temperature value provided by the temperature measuring unit 102.

[0070] The air supply unit 202 in the ventilation assembly is mainly used to adjust the air flow, thereby affecting the temperature of the heating zone 101. The air supply unit 202 can be a fan, a blower, a vent with adjustable air volume, etc. The ventilation flow to the corresponding heating zone 101 can be controlled by adjusting the corresponding air supply unit 202 to adjust the temperature of the corresponding heating zone 101.

[0071] Specifically, if the air supply unit 202 uses a fan or a blower, the air flow rate can be adjusted by changing the speed of the fan or the blower; if the air supply unit 202 uses a vent with adjustable air volume, the air volume of each ventilation component can be controlled by adjusting the opening and closing degree of the vent to meet the ventilation needs of different heating zones 101.

[0072] By connecting the air supply unit 202 to the temperature measurement unit 102, the air volume of the ventilation pipe 201 can be adjusted in real time based on the temperature value provided by the temperature measurement unit 102, thereby controlling the temperature of each heating zone 101. This control can effectively reduce welding defects caused by uneven temperature and improve welding quality.

[0073] The working principle of the air supply unit 202 is to adjust the air volume of the air supply unit 202 based on the real-time temperature data provided by the temperature measurement unit 102. The specific working process of the heating light box includes:

[0074] The temperature measurement unit 102 collects temperature data of the heating zone 101 in real time and transmits the data to the air supply unit 202;

[0075] The air supply unit 202 adjusts the air volume of the ventilation pipe 201 based on the temperature data and the set temperature range, for example, by adjusting the speed of the fan, the opening and closing degree of the regulating valve, etc.

[0076] The adjusted airflow is delivered to the heating area 101 through the ventilation duct 201 , helping to regulate and stabilize the temperature of the heating area 101 .

[0077] Continue to refer Figure 2 As shown, the heating lamp box further includes a lifting mechanism for driving the heating mechanism 1 to move up and down, and the lifting mechanism includes a fixing plate 3 and a driving unit 4 provided on the fixing plate 3, wherein:

[0078] The heating mechanism 1 is slidably connected to the fixed plate 3 and is in transmission connection with a driving unit 4 provided on the fixed plate 3. The driving unit 4 is used to drive the heating mechanism 1 to slide and rise and fall along the fixed plate 3.

[0079] The driving unit 4 is a core component for realizing the lifting of the heating mechanism 1 and can adopt an electric lifter, a pneumatic lifter (such as a cylinder), a hydraulic lifter, a stepper motor, a servo motor, etc.

[0080] Continue to refer Figure 2 As shown, the heating lamp box is installed on the mounting frame 5, and the mounting frame 5 can be vertically slidably set on the fixed plate 3 through, for example, a slide rail. The driving unit 4 is also set on the fixed plate 3, and the driving end of the driving unit 4 is connected to the mounting frame 5 to drive the mounting frame 5 to rise and fall.

[0081] The lifting mechanism allows the heating mechanism 1 to be adjusted in height according to the thickness or size of the welded parts, enhancing the flexibility and adaptability of the production line. Furthermore, the automatic lifting of the drive unit 4 reduces the complexity of manual operations and improves operational convenience and efficiency. The automated adjustment method reduces human error and improves operational safety and consistency.

[0082] like Figure 3-4 As shown, the heating mechanism 1 includes at least one heating cavity 103 , each heating cavity 103 is provided with a heating unit 106 , and each heating cavity 103 forms a corresponding heating zone 101 ;

[0083] The top of the heating chamber 103 is provided with an opening for connecting to the ventilation pipe 201;

[0084] The heating mechanism 1 further includes a heat insulation board 108 arranged around the heating zone 101; the structure of the heat insulation board 108 can be designed according to the shape and size of the heating zone 101; the thickness of the heat insulation board 108 can be optimized according to actual use conditions to achieve a good heat insulation effect.

[0085] Optionally, the thermal insulation board 108 may be made of the following materials: refractory bricks, thermal insulation fibers (such as carbon fibers, ceramic fibers), aerogels, etc., or a combination of at least two of the above materials.

[0086] The heat insulation board 108 can effectively reduce heat loss and ensure that most of the heat is concentrated in the heating area 101, thereby improving the heating efficiency. Higher heating efficiency means less energy consumption and better heating effect.

[0087] In addition, the heat insulation board 108 can also prevent high temperature from damaging the heating equipment and its surrounding environment, reducing safety hazards caused by overheating; the heat insulation board 108 can effectively protect the normal operation of the equipment and improve the safety of the system.

[0088] like Figure 5 As shown, an air distribution component is further provided in the heating chamber 103 and is located between the ventilation mechanism 2 and the heating unit 106. The air distribution component includes at least one air distribution plate, and a through hole is provided on the air distribution plate.

[0089] Optionally, the ventilation pipe 201 is responsible for conveying the airflow generated by the air supply unit 202 to the heating zone 101 and is made of high temperature resistant and corrosion resistant materials;

[0090] The air inlet of the ventilation pipe 201 is connected to the air outlet of the air supply unit 202, and flange connection, clamp connection or threaded connection can be used to ensure the sealing and stability of the connection;

[0091] The air outlet of the ventilation tube 201 is detachably connected to the heating chamber 103, which facilitates the later replacement of the ventilation tube 201; and the connection between the air outlet of the ventilation tube 201 and the heating chamber 103 is well sealed to prevent air leakage.

[0092] Optionally, the heating unit 106 in the heating mechanism 1 may use an infrared lamp, a heating plate, a gas heater or a resistance heating wire, etc. Different heating units 106 may be selected according to actual needs.

[0093] The air distribution plate is used to distribute air flow and is installed at a specific location in the air flow path. Its primary function is to evenly distribute the airflow entering through the ventilation duct 201 into the heating chamber 103, ensuring uniform air flow within the heating chamber 103 and avoiding localized airflow concentration or unevenness.

[0094] Through the design of the air distribution plate, the air flow can be blown out evenly from the downward side of the heating chamber 103.

[0095] Optionally, the air distribution plate is made of metal material (such as aluminum alloy, stainless steel) or high-temperature resistant plastic, and a plurality of through holes are opened on the air distribution plate. The arrangement and size of these through holes are designed to distribute the airflow.

[0096] Continue to refer Figure 5As shown, the air distribution assembly includes a first air distribution plate 104 and a second air distribution plate 105 arranged at intervals. The interval between the first air distribution plate 104 and the second air distribution plate 105 can be designed according to the actual air flow velocity and the internal space of the heating chamber 103. If the interval is too small, the air flow may not be fully diffused, and if the interval is too large, the uniformity of the air flow may be reduced. Reasonable interval design can effectively improve the distribution effect of the air flow. In particular:

[0097] The first air balancing plate 104 is provided with a plurality of first through holes, and the second air balancing plate 105 is provided with a plurality of second through holes, wherein the diameter of the first through holes is larger than that of the second through holes;

[0098] The first air balancing plate 104 is disposed closer to the ventilation mechanism 2 than the second air balancing plate 105, so that the air introduced by the ventilation mechanism 2 passes through the first through-hole on the first air balancing plate 104 and the second through-hole on the second air balancing plate 105 in sequence and then blows onto the heating unit 106;

[0099] The function of the first air distribution plate 104 is to initially diffuse the airflow, reduce the concentration effect of the airflow, and prepare for subsequent uniform distribution;

[0100] The diameter of the through holes on the second air balancing plate 105 is smaller than that of the first air balancing plate 104 , and is used to further disperse and even out the airflow.

[0101] The first air balancing plate 104 and the second air balancing plate 105 are connected to the inner wall of the heating chamber 103 through a fixed structure or a supporting structure to ensure their stability and durability during the heating process; the connection method can be welding, riveting or fixing the air balancing plate to the inner wall of the heating chamber 103 by installing screws.

[0102] Through the design of the first air equalizing plate 104 and the second air equalizing plate 105, the airflow can reach the heating unit 106 after two stages of equalization processing, thereby achieving more uniform airflow distribution and avoiding uneven heating caused by concentrated airflow.

[0103] Continue to refer Figure 5 As shown, the heating unit 106 is an infrared lamp that can emit infrared radiation to heat surrounding objects.

[0104] A cooling tube 107 is provided on the side of the infrared lamp tube. A plurality of air holes are provided on the side of the cooling tube 107 facing the infrared lamp tube for blowing air into the infrared lamp tube. The size and number of the air holes can be designed according to the heat generation and heat dissipation requirements of the infrared lamp tube.

[0105] The effective heat dissipation of the cooling tube 107 can prevent the infrared lamp from overheating, thereby ensuring that the infrared lamp works in the best condition and improving the heating efficiency. The stable heating effect helps to maintain the consistency and reliability of the heating process; and it can also prevent the infrared lamp from shortening its service life due to overheating, thereby extending the service life of the infrared lamp and reducing the need for frequent replacement of the infrared lamp.

[0106] In a second aspect, the present application further proposes a cell welding device, characterized in that the cell welding device includes a welding conveying mechanism and the above-mentioned heating lamp box,

[0107] The welding conveyor mechanism is configured to convey the battery cells and welding ribbons that have been stacked in a predetermined manner. A series connection station is provided on the conveying path of the welding conveyor mechanism, and a heating lamp box is provided at the series connection station.

[0108] The heating light box is used to heat the battery cells and welding strips stacked in a predetermined manner at the serial connection station, so that the welding strips are cured on the battery cells after being heated.

[0109] In the cell welding device, the heating lamp box emits infrared radiation, which is directly irradiated on the cell and the soldering ribbon. The infrared radiation heats the soldering ribbon to the curing temperature, thereby achieving the bonding between the soldering ribbon and the cell.

[0110] After the heating process is completed, the battery cells and solder ribbons will continue to move on the conveyor path and enter the cooling area or other subsequent processing areas.

[0111] By independently monitoring and adjusting the temperature of each heating zone 101 of the heating light box, uniform solidification of the soldering ribbon on the battery cell can be ensured, thereby improving soldering quality and reliability.

[0112] In addition, the coordinated work of the welding conveying mechanism and the heating light box can realize continuous automatic welding, significantly improving production efficiency; the stable conveying system and efficient heating process reduce manual intervention and shorten the production cycle.

[0113] The battery cell welding device also includes an exhaust mechanism, which is used to exhaust air from the serial connection station;

[0114] The exhaust mechanism is installed on the heating lamp box, or the exhaust mechanism is installed on the side of the serial connection station via an independent installation bracket.

[0115] The exhaust mechanism can extract the waste gas generated during the welding process and assist in cooling, thereby improving the operating environment and protecting the health of the operators. In addition, the negative pressure effect of the exhaust mechanism can reduce the air flow in the welding area, improve the heating efficiency, and thus improve the welding quality.

[0116] The present application has been described above in sufficient detail with certain specificity. Those skilled in the art will understand that the descriptions in the examples are merely illustrative, and that all modifications made without departing from the true spirit and scope of the present application are intended to be within the scope of protection of the present application. The scope of protection claimed in the present application is defined by the claims, not by the description in the examples.

Claims

1. A heating light box, characterized in that: The heating lamp box includes a heating mechanism and a ventilation mechanism, wherein: The heating mechanism has at least one heating zone, and each heating zone is provided with a temperature measuring unit for measuring the temperature of the heating zone; The ventilation mechanism is configured to independently ventilate each heating zone, and is further configured to control the ventilation flow to the corresponding heating zone according to the temperature measurement result of the temperature measuring unit to adjust the temperature of the corresponding heating zone.

2. The heating lamp box according to claim 1, characterized in that: The heating mechanism comprises at least two heating zones; The ventilation mechanism includes at least two ventilation components corresponding to the heating zones one by one, and each ventilation component is configured to ventilate the corresponding heating zone based on the temperature of the corresponding heating zone.

3. The heating lamp box according to claim 2, characterized in that: The ventilation assembly includes a ventilation pipe and an air supply unit, wherein: the air supply unit is arranged on the ventilation pipe, and the air outlet of the ventilation pipe is connected to the corresponding heating area; The air supply unit is signal-connected to the temperature measuring unit in the corresponding heating zone, and the air supply unit controls the ventilation flow of the ventilation pipe based on the temperature value provided by the temperature measuring unit.

4. The heating lamp box according to claim 1, characterized in that: The heating lamp box further includes a lifting mechanism for driving the heating mechanism to move up and down, the lifting mechanism including a fixing plate and a driving unit provided on the fixing plate, wherein: The heating mechanism is slidably connected to the fixing plate and is transmission-connected to the driving unit provided on the fixing plate. The driving unit is used for driving the heating mechanism to slide and rise and fall along the fixing plate.

5. The heating lamp box according to claim 1, characterized in that: The heating mechanism includes at least one heating cavity, each of which is provided with a heating unit, and each of which forms a corresponding heating zone; The heating chamber is further provided with an air distribution component located between the ventilation mechanism and the heating unit. The air distribution component includes at least one air distribution plate, and a through hole is provided on the air distribution plate.

6. The heating lamp box according to claim 5, characterized in that: The air distribution assembly includes a first air distribution plate and a second air distribution plate that are spaced apart, wherein: The first air balancing plate is provided with a plurality of first through holes, and the second air balancing plate is provided with a plurality of second through holes, wherein the diameter of the first through holes is larger than that of the second through holes; The first air equalizing plate is arranged closer to the ventilation mechanism than the second air equalizing plate, so that the wind introduced by the ventilation mechanism passes through the first through hole on the first air equalizing plate and the second through hole on the second air equalizing plate in sequence and then blows onto the heating unit.

7. The heating lamp box according to claim 5, characterized in that: The heating unit is an infrared lamp tube, a cooling tube is provided on the side of the infrared lamp tube, and a plurality of blowing holes are provided on the side of the cooling tube facing the infrared lamp tube for blowing air to the infrared lamp tube.

8. The heating lamp box according to claim 1, characterized in that: The heating mechanism further comprises a heat insulation plate arranged around the heating zone.

9. A battery cell welding device, characterized in that: The cell welding device comprises a welding conveying mechanism and a heating lamp box according to any one of claims 1 to 8, The welding conveyor mechanism is configured to convey battery cells and welding ribbons that have been stacked in a predetermined manner. A serial connection station is provided on the conveying path of the welding conveyor mechanism, and the heating lamp box is provided at the serial connection station. The heating light box is used to heat the battery cells and solder strips stacked in a predetermined manner at the serial connection station, so that the solder strips are cured on the battery cells after being heated.

10. The battery cell welding device according to claim 9, characterized in that: The battery cell welding device further includes an exhaust mechanism, which is used to exhaust air from the serial connection station; The exhaust mechanism is installed on the heating lamp box, or the exhaust mechanism is installed on the side of the serial connection station via an independent mounting bracket.

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