Welding device and battery processing equipment

Abstract

The utility model relates to the technical field of battery processing, and discloses a welding device and battery processing equipment, the welding device comprises a bearing platform and a heating assembly, the bearing platform is used for placing a battery string, the heating assembly comprises a contact piece and a heating piece, the contact piece is movably arranged relative to the bearing platform, and the heating piece is used for heating the contact piece. The contact piece can move relative to the bearing platform so as to make contact with the battery string or be separated from the battery string, and the heating piece is arranged on the contact piece and used for heating the contact piece. By the adoption of the welding device and the battery processing equipment, the welding temperature can be accurately controlled, the welding stability is high, the yield of produced batteries is high, and the requirement for batch production can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing, in particular to a welding device and battery processing equipment. Background Art

[0002] With the continuous development of photovoltaic technology and the continuous changes in market demand, 0BB (busbarless battery cell assembly) technology is expected to become one of the mainstream technologies in the photovoltaic industry in the future. In the related technology, in order to weld multiple cells of a busbarless battery cell assembly, there is a solution that the welding ribbon and the cell are fed into a light box and heated by infrared lamps to weld the welding ribbon and the cell.

[0003] However, when using infrared lamps for heating, the welding temperature is difficult to control, the welding stability is low, and the yield rate of the produced batteries is low, which is difficult to meet the needs of mass production. Utility Model Content

[0004] The embodiment of the utility model discloses a welding device and a battery processing equipment, which can accurately control the welding temperature, have high welding stability, produce batteries with high yield rate, and can meet the needs of mass production.

[0005] In the first aspect, an embodiment of the utility model discloses a welding device, comprising a carrying platform and a heating component, wherein the carrying platform is used to place a battery string, and the heating component comprises a contact piece and a heating piece, wherein the contact piece is movably arranged relative to the carrying platform, and the contact piece can be moved relative to the carrying platform to contact the battery string or be separated from the battery string, and the heating piece is arranged on the contact piece, and the heating piece is used to heat the contact piece.

[0006] As an optional implementation, in an embodiment of the utility model, the heating component also includes a heating platform, the heating platform is movably arranged relative to the carrying platform, and the heating element is embedded in the heating platform, and the contact element is stacked on the side of the heating platform facing the carrying platform.

[0007] As an optional implementation, in an embodiment of the utility model, the welding device further includes a soaking plate, and the soaking plate is arranged between the heating platform and the contact member.

[0008] As an optional implementation, in an embodiment of the utility model, the welding device also includes a first lifting component, which is connected to the heating component, and is used to drive the heating component to rise and protrude from the supporting platform so that the contact piece contacts the battery string, or to drive the heating component to descend and be hidden in the supporting platform so that the contact piece is separated from the battery string.

[0009] As an optional implementation, in an embodiment of the utility model, the carrying platform has a carrying surface and a accommodating cavity, the carrying surface is used to place the battery string, and the first lifting component is used to drive the heating component to rise and protrude from the carrying surface so that the contact piece is in contact with the battery string, or to drive the heating component to descend and be hidden in the accommodating cavity so that the contact piece is separated from the battery string.

[0010] As an optional implementation, in an embodiment of the utility model, the welding device further includes a temperature sensor, and the temperature sensor is disposed on the contact piece, and the temperature sensor is used to detect the temperature of the contact piece.

[0011] As an optional implementation, in an embodiment of the utility model, the heating element is electrically connected to the temperature sensor, and the heating element is used to start heating when the temperature is less than a preset value, and to stop heating when the temperature is greater than or equal to the preset value.

[0012] As an optional implementation, in an embodiment of the utility model, the welding device also includes a clamping member, which is movably arranged relative to the carrying platform, and the clamping member can move relative to the carrying platform to press the battery string against the carrying platform or release the battery string.

[0013] As an optional implementation, in an embodiment of the utility model, the welding device also includes a second lifting assembly, which is connected to the clamping member, and is used to drive the clamping member to descend and press the battery string against the supporting platform, or to drive the clamping member to rise and separate from the battery string to loosen the battery string.

[0014] In a second aspect, an embodiment of the utility model discloses a battery processing device, comprising the welding device of the first aspect.

[0015] Compared with the prior art, the embodiments of the present invention have at least the following beneficial effects:

[0016] In the embodiment of the utility model, the battery string is placed on the carrying platform, and the contact piece of the heating component can move relative to the carrying platform to contact the battery string or separate from the battery string, and the heating piece of the heating component is arranged on the contact piece and can be used to heat the contact piece. Based on this, when welding the battery string, the contact piece can move relative to the carrying platform to contact the battery string. At this time, the heating piece heats the contact piece, and the contact piece can transfer heat to the battery string, so that the temperature of the battery string is stabilized at the temperature required for welding. In addition, the contact piece directly contacts the battery string to transfer heat, and the welding temperature can be accurately controlled. The welding stability is high, and the yield rate of the produced batteries is high, which can meet the needs of mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this technical field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a structural schematic diagram of a welding device disclosed in Embodiment 1 of the present utility model;

[0019] Figure 2 It is a structural schematic diagram of a heating component disclosed in the first embodiment of the utility model;

[0020] Figure 3 It is a simplified structural diagram of the battery processing equipment disclosed in the second embodiment of the present utility model.

[0021] Description of main reference numerals

[0022] 100. Welding device; 10. Carrying platform; 10a. Carrying surface; 20. Heating assembly; 21. Contact member; 22. Heating platform; 23. Heat spreader; 30. Pressing member; 200. Battery processing equipment; a. Battery string. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0025] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0026] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0027] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0028] The utility model discloses a welding device and battery processing equipment, which can accurately control the welding temperature, have high welding stability, produce batteries with high yield rate, and can meet the needs of mass production.

[0029] Embodiment 1

[0030] Please also read Figure 1 and Figure 2 , is a structural schematic diagram of a welding device 100 provided in Embodiment 1 of the present utility model, the welding device 100 includes a carrying platform 10 and a heating component 20, the carrying platform 10 is used to place the battery string a, the heating component 20 includes a contact member 21 and a heating member (not shown), the contact member 21 is movably arranged relative to the carrying platform 10, the contact member 21 can move relative to the carrying platform 10 to contact the battery string a or separate from the battery string a, the heating member is arranged on the contact member 21, and the heating member is used to heat the contact member 21.

[0031] The battery string a includes a plurality of arranged battery cells. When the battery string a is welded, a welding strip is placed between the battery cells. By increasing the temperature to reach the temperature required for welding, the welding strip can be welded to the battery cells to connect the plurality of battery cells.

[0032] In this embodiment, the battery string a is placed on the carrier platform 10, and the contact member 21 of the heating component 20 can move relative to the carrier platform 10 to contact the battery string a or separate from the battery string a, and the heating member of the heating component 20 is arranged on the contact member 21 and can be used to heat the contact member 21. Based on this, when welding the battery string a, the contact member 21 can move relative to the carrier platform 10 to contact the battery string a. At this time, the heating member heats the contact member 21, and the contact member 21 can conduct heat to the battery string a, so that the temperature of the battery string a is stabilized at the temperature required for welding. In addition, the contact member 21 directly contacts the battery string a to conduct heat, which can accurately control the welding temperature, the welding stability is high, and the yield rate of the produced batteries is high, which can meet the needs of mass production.

[0033] In addition, after heating is completed, the contact member 21 can move relative to the supporting platform 10 and separate from the battery string a, thereby controlling the welding time and preventing the contact member 21 from continuously heating the battery string a and causing its temperature to exceed the temperature required for welding.

[0034] In some embodiments, Figure 2 As shown, the heating assembly 20 also includes a heating platform 22, which is movably arranged relative to the carrier platform 10, and a heating element is buried in the heating platform 22, and the contact element 21 is stacked on the side of the heating platform 22 facing the carrier platform 10. On the one hand, by burying the heating element in the heating platform 22, the heating element can heat the heating platform 22, and the heat of the heating platform 22 can be transferred to the contact element 21, so that the heating element is heated. In addition, the heating platform 22 can move relative to the carrier platform 10 to drive the contact element 21 to contact the battery string a, so that the contact element 21 can conduct the heat to the battery string a by contact conduction, so that the temperature of the battery string a is stably at the temperature required for welding. On the other hand, after the heating is completed, the heating platform 22 can drive the contact element 21 to move relative to the carrier platform 10 and separate from the battery string a, so as to avoid the situation where the contact element 21 continues to heat the battery string a and causes its temperature to exceed the temperature required for welding.

[0035] The heating element may be a heating rod or a heating block, etc., which may be selected according to actual conditions, and this embodiment does not make any specific limitation to this.

[0036] Exemplarily, the welding device 100 further includes a soaking plate 23, which is disposed between the heating platform 22 and the contact member 21. In this way, the soaking plate 23 is used for heat conduction, and the heat generated by the heating platform 22 under the heating action of the heating member can be evenly conducted to the contact member 21, so that the overall temperature of the contact member 21 is uniform. When the contact member 21 contacts the battery string a and heats the battery string a, each part is heated evenly, and the temperature of each part of the battery string a is uniform, which can avoid the situation where the temperature of a local position of the battery string a exceeds or is lower than the temperature required for welding, and the welding yield of the battery string a is high.

[0037] In some embodiments, the welding device 100 further includes a first lifting assembly (not shown), which is connected to the heating assembly 20. The first lifting assembly is used to drive the heating assembly 20 to rise and protrude from the carrying platform 10 so that the contact member 21 contacts the battery string a, or to drive the heating assembly 20 to descend and be hidden in the carrying platform 10 so that the contact member 21 is separated from the battery string a. In this way, the heating assembly 20 is driven to rise and protrude from the carrying platform 10 by the first lifting assembly. At this time, the contact member 21 can contact the battery string a to heat the battery string a, so that the temperature of the battery string a is stabilized at the temperature required for welding. After the heating is completed, the first lifting assembly can drive the heating assembly 20 to descend and be hidden in the carrying platform 10. At this time, the contact member 21 is separated from the battery string a to stop heating the battery string a, so as to avoid the situation where the contact member 21 continues to heat the battery string a and causes its temperature to exceed the temperature required for welding. Furthermore, by hiding the heating assembly 20 in the carrying platform 10 , the overall volume of the welding device 100 can be reduced, so that more welding devices 100 can be arranged in a site with limited space to achieve mass production.

[0038] For example, Figure 1As shown, the carrying platform 10 has a carrying surface 10a and a receiving cavity (not shown), the carrying surface 10a is used to place the battery string a, and the first lifting component is used to drive the heating component 20 to rise and protrude from the carrying surface 10a, so that the contact 21 contacts the battery string a, or to drive the heating component 20 to descend and be hidden in the receiving cavity, so that the contact 21 is separated from the battery string a. In this way, the battery string a is placed on the carrying surface 10a, and when the first lifting component drives the heating component 20 to rise and protrude from the carrying surface 10a, the contact 21 can contact the battery string a, and the battery string a is heated and stabilized at the temperature required for welding by heating of the heating component. After the heating is completed, the first lifting device drives the heating component 20 to descend and be hidden in the receiving cavity, so that the contact 21 is separated from the battery string a and stops heating the battery string a, so as to avoid the situation where the contact 21 continues to heat the battery string a and causes its temperature to exceed the temperature required for welding. Furthermore, by hiding the heating assembly 20 in the accommodating cavity, the overall volume of the welding device 100 can be reduced, so that more welding devices 100 can be arranged in a site with limited space to achieve mass production.

[0039] In some embodiments, the welding device 100 further includes a temperature sensor (not shown), which is disposed on the contact member 21 and is used to detect the temperature of the contact member 21. In this way, on the one hand, by detecting the temperature of the contact member 21 through the temperature sensor, the welding temperature of the battery string a can be monitored in real time, so as to accurately control the welding temperature and welding time. On the other hand, since the contact member 21 is in contact with the battery string a, the temperature difference between the two is small, and the welding temperature of the battery string a is obtained by detecting the temperature of the contact member 21, which has high accuracy and can avoid the risk of damage to the battery string a caused by the temperature sensor directly contacting the battery string a.

[0040] Optionally, the heating element is electrically connected to a temperature sensor, and the heating element is used to start heating when the temperature is less than a preset value, and to stop heating when the temperature is greater than or equal to the preset value. In this way, the temperature is detected by the temperature sensor, and the heating element can start or stop heating according to the relationship between the temperature and the preset value, thereby achieving precise control of the welding temperature and welding time.

[0041] Exemplarily, the preset value may be 172°C-182°C, which may be selected according to actual conditions, and is not specifically limited in this embodiment. Preferably, the preset value may be 180°C.

[0042] In some embodiments, the welding device 100 further includes a clamping member 30, which is movably arranged relative to the carrier platform 10. The clamping member 30 can move relative to the carrier platform 10 to press the battery string a against the carrier platform 10 or release the battery string a. In this way, by moving the clamping member 30 relative to the carrier platform 10 to press the battery string a against the carrier platform 10, the battery string a can maintain its temperature during welding to avoid deviation and affect the welding accuracy. After the battery string a is welded and cooled, the clamping member 30 can move relative to the carrier platform 10 to release the battery string a.

[0043] The pressing member 30 may be a pressing net with pressing pins, and the pressing pins are used to press the welding rod and the battery string a, and the battery string a is pressed against the carrying platform 10 .

[0044] Optionally, the welding device 100 further includes a second lifting assembly (not shown), which is connected to the clamping member 30, and is used to drive the clamping member 30 to descend and press the battery string a against the carrying platform 10, or to drive the clamping member 30 to rise and separate from the battery string a to release the battery string a. In this way, the clamping member 30 is driven to rise or fall by the second lifting assembly, and when the battery string a is welded, the clamping member 30 can descend and press the battery string a against the carrying platform 10. After the battery string a is welded and cooled, the clamping member 30 can rise and separate from the battery string a to release the battery string a, and the degree of automation is relatively high.

[0045] The first embodiment of the utility model provides a welding device 100, in which a battery string a is placed on a carrying platform 10, and a contact member 21 of a heating component 20 can move relative to the carrying platform 10 to contact the battery string a or separate from the battery string a, and a heating member of the heating component 20 is arranged on the contact member 21 and can be used to heat the contact member 21. Based on this, when welding the battery string a, the contact member 21 can move relative to the carrying platform 10 to contact the battery string a. At this time, the heating member heats the contact member 21, and the contact member 21 can conduct heat to the battery string a, so that the temperature of the battery string a is stabilized at the temperature required for welding. In addition, the contact member 21 directly contacts the battery string a to conduct heat, and the welding temperature can be accurately controlled. The welding stability is high, and the yield rate of the produced batteries is high, which can meet the needs of mass production.

[0046] Embodiment 2

[0047] See also Figure 3 , which is a schematic structural diagram of a battery processing device 200 provided in Example 2 of the utility model. The battery processing device 200 includes the welding device 100 of Example 1.

[0048] The second embodiment of the present invention provides a battery processing device 200, wherein the welding device 100 can accurately control the welding temperature, has high welding stability, and produces batteries with a high yield rate, which can meet the needs of mass production.

[0049] The above is a detailed introduction to a welding device and a battery processing equipment disclosed in the embodiment of the utility model. This article uses individual examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the welding device and battery processing equipment of the utility model and their core ideas; at the same time, for general technical personnel in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A welding device, characterized in that: include: A carrying platform, the carrying platform is used to place the battery string; as well as A heating component, the heating component includes a contact piece and a heating piece, the contact piece is movably arranged relative to the carrying platform, the contact piece can be moved relative to the carrying platform to contact the battery string or separate from the battery string, the heating piece is arranged on the contact piece, and the heating piece is used to heat the contact piece.

2. The welding device according to claim 1, characterized in that: The heating assembly further comprises a heating platform, which is movably arranged relative to the carrying platform, and the heating element is embedded in the heating platform. The contact element is stacked on a side of the heating platform facing the carrying platform.

3. The welding device according to claim 2, characterized in that: The welding device further comprises a soaking plate, which is arranged between the heating platform and the contact member.

4. The welding device according to any one of claims 1 to 3, characterized in that: The welding device also includes a first lifting component, which is connected to the heating component. The first lifting component is used to drive the heating component to rise and protrude from the supporting platform so that the contact piece contacts the battery string, or to drive the heating component to descend and be hidden in the supporting platform so that the contact piece is separated from the battery string.

5. The welding device according to claim 4, characterized in that: The carrying platform has a carrying surface and a accommodating cavity, the carrying surface is used to place the battery string, and the first lifting component is used to drive the heating component to rise and protrude from the carrying surface so that the contact piece contacts the battery string, or to drive the heating component to descend and hide in the accommodating cavity so that the contact piece is separated from the battery string.

6. The welding device according to any one of claims 1 to 3, characterized in that: The welding device further comprises a temperature sensor, which is disposed on the contact piece and is used to detect the temperature of the contact piece.

7. The welding device according to claim 6, characterized in that: The heating element is electrically connected to the temperature sensor, and is used to start heating when the temperature is less than a preset value, and to stop heating when the temperature is greater than or equal to the preset value.

8. The welding device according to any one of claims 1 to 3, characterized in that: The welding device further comprises a pressing member, which is movably arranged relative to the carrying platform. The pressing member can move relative to the carrying platform to press the battery string onto the carrying platform or release the battery string.

9. The welding device according to claim 8, characterized in that: The welding device also includes a second lifting assembly, which is connected to the pressing member, and is used to drive the pressing member to descend and press the battery string against the supporting platform, or to drive the pressing member to rise and separate from the battery string to loosen the battery string.

10. A battery processing device, characterized in that: Comprising the welding device according to any one of claims 1 to 9.

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