WO2024066266A1 - 焊座、焊接单元及超声波焊接机 - Google Patents
焊座、焊接单元及超声波焊接机 Download PDFInfo
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- WO2024066266A1 WO2024066266A1 PCT/CN2023/085114 CN2023085114W WO2024066266A1 WO 2024066266 A1 WO2024066266 A1 WO 2024066266A1 CN 2023085114 W CN2023085114 W CN 2023085114W WO 2024066266 A1 WO2024066266 A1 WO 2024066266A1
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- welding
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- welded
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- seat
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- 238000003466 welding Methods 0.000 title claims abstract description 321
- 239000000919 ceramic Substances 0.000 claims abstract description 32
- 230000009471 action Effects 0.000 claims description 92
- 239000007791 liquid phase Substances 0.000 claims description 8
- 239000007772 electrode material Substances 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 239000000306 component Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 2
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000004021 metal welding Methods 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/26—Auxiliary equipment
Definitions
- the present application relates to the technical field of ultrasonic welding, and in particular to a welding seat, a welding unit and an ultrasonic welding machine.
- Electrode materials are important components in batteries, and the quality of electrode materials is crucial. Generally, an ultrasonic welding machine is used to weld electrode materials, such as welding adapters and tabs, but the welding quality in the related art is poor.
- the present application provides a welding seat, a welding unit and an ultrasonic welding machine to improve the welding quality of ultrasonic welding electrode materials.
- the present application provides a welding seat, which is provided in an ultrasonic welding machine, and the welding seat comprises:
- a first action portion wherein the first action portion is disposed on the welding base
- the first acting part is a ceramic part, and the first acting part is integrated with the welding seat base.
- the above-mentioned welding seat is arranged in an ultrasonic welding machine, and the first action part is used to support the workpiece to be welded, for example, to support the electrode material in the battery.
- the welding head in the ultrasonic welding machine moves close to the welding seat and clamps the workpiece to be welded, the welding head transmits high-frequency vibration ultrasonic waves to the workpiece to be welded.
- the first action part in the welding seat is integrated with the welding seat base. After being subjected to high-frequency vibration, the first action part will not shake relative to the welding seat base.
- the first action part can provide effective support for the workpiece to be welded and ensure the welding effect.
- the first action part is a ceramic part, which can prevent the workpiece to be welded from adhering to the first action part. In this way, the welding effect is ensured while effectively preventing the workpiece to be welded from adhering to the welding seat.
- the first action portion and the welding base are welded to each other.
- the first action portion and the welding base are welded by transient liquid phase connection.
- a plurality of first welding teeth are disposed on a side of the first action portion facing away from the welding seat base, and outer surfaces of at least some of the first welding teeth are configured as spherical surfaces.
- the radius of the first welding tooth is 0.7-1.0 mm.
- the present application provides an ultrasonic welding unit, comprising a welding head and the welding seat mentioned above, wherein the welding head and the welding seat are arranged opposite to each other, and the welding head is controlled to move toward and away from the welding seat.
- the welding head includes a welding head base and a second acting portion, the second acting portion is disposed on the welding head base and faces the first acting portion, and the second acting portion is a ceramic component.
- the second action portion and the welding head base are welded to each other.
- the second action portion is welded to the welding head base by instantaneous liquid phase connection.
- a plurality of second welding teeth are disposed on a side of the second action portion facing away from the welding head base, and outer surfaces of at least some of the second welding teeth are configured as spherical surfaces.
- the diameter of the second welding tooth is 0.7-1.0 mm.
- the present application provides an ultrasonic welding unit, including the above-mentioned ultrasonic welding unit.
- FIG1 is a schematic structural diagram of a welding unit in one embodiment of the present application.
- FIG2 is a schematic structural diagram of a first action portion of the welding unit shown in FIG1 ;
- FIG. 3 is a schematic structural diagram of a second action portion in the welding unit shown in FIG. 1 .
- the term "and/or" is only a description of the association relationship of associated objects, indicating that three relationships may exist.
- a and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone.
- the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.
- multiple refers to more than two (including two).
- multiple groups refers to more than two groups (including two groups), and “multiple pieces” refers to more than two pieces (including two pieces).
- Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.
- the electrode material is the core component of the battery, and the welding quality of the electrode material is particularly important.
- the electrode material is welded by an ultrasonic welding machine, such as welding the adapter and the pole ear.
- the pole ear and the adapter are stacked from bottom to top on the welding seat, and then the electric energy provided by the ultrasonic frequency power supply is converted into mechanical energy of high-frequency vibration by the ultrasonic transducer, and the energy is transferred to the adapter and the pole ear by the ultrasonic amplitude modulator and the welding head.
- the welding of the adapter and the pole ear is achieved under the dual action of pressure and ultrasound between the welding head and the welding seat.
- high-frequency vibration will be generated during ultrasonic welding.
- a ceramic insert is generally set on the welding seat to support the electrode material through the ceramic insert, but the use of this welding seat will still lead to poor welding.
- the ceramic insert is fixed to the body of the welding seat by a fastener. Under the action of high-frequency vibration, the ceramic insert is easy to shake, thereby driving the electrode material to be welded to shake and affecting the welding quality.
- the ceramic insert and the welding base base can be integrated, so that there will be no relative shaking between the ceramic insert and the welding base base.
- the ceramic insert can be used to prevent adhesion while the welding performance will not be affected by the shaking of the ceramic insert, thereby ensuring the welding effect.
- the welding seat, ultrasonic welding unit and ultrasonic welding machine disclosed in the embodiments of the present application can be used for welding electrode materials, and can also be used for welding other parts to be welded, which is not limited here.
- the present application provides an ultrasonic welding machine, including an ultrasonic welding unit 100, the ultrasonic welding unit 100 including a welding seat 10 and a welding head 30, the welding seat 10 and the welding head 30 are arranged relatively to each other, and the welding head 30 is controlled to move in the direction of approaching and moving away from the welding seat 10.
- the welding seat 10 is used to support the workpiece to be welded, and the welding head 30 can be raised and lowered relative to the welding seat 10.
- the welding head 30 transmits ultrasonic high-frequency vibration to the workpiece to be welded, thereby completing the welding work.
- the welding seat 10 includes a welding seat base 12 and a first action portion 14 .
- the first action portion 14 is disposed on the welding seat base 12 .
- the first action portion 14 is a ceramic component, and the first action portion 14 and the welding seat base 12 are integrally disposed.
- the welding base 12 serves as a bearing foundation for the first action part 14 and is generally made of metal and has strong supporting properties.
- the first action part 14 is integrally arranged on the welding base 12, and is used to support the workpiece to be welded, for example, to support the electrode material.
- the first action part 14 is a ceramic part, which has good high temperature resistance and wear resistance. During the ultrasonic welding process, the first action part 14 will not adhere to the workpiece to be welded due to high temperature or friction.
- the welding seat 10 is provided in an ultrasonic welding machine, and the first action part 14 is used to support the workpiece to be welded, for example, to support the electrode material in the battery.
- the welding head 30 in the ultrasonic welding machine moves close to the welding seat 10 and clamps the workpiece to be welded, the welding head 30 transmits high-frequency vibration ultrasonic waves to the workpiece to be welded.
- the first action part 14 in the welding seat 10 is integrated with the welding seat base 12.
- the first action part 14 will not shake relative to the welding seat base 12 after being subjected to high-frequency vibration.
- the first action part 14 can provide effective support for the workpiece to be welded and ensure the welding effect.
- the first action part 14 is a ceramic part, which can prevent the workpiece to be welded from adhering to the first action part 14. In this way, the welding effect is ensured while effectively preventing the workpiece to be welded from adhering to the welding seat 10.
- the first action portion 14 and the welding base body 12 are welded to each other, so that the ceramic first action portion 14 is directly welded to the metal welding base body by welding, and the first action portion 14 and the welding base body 12 are integrated.
- Instantaneous liquid phase connection is a material connection method, that is, an intermediate layer is added between the connected parent materials, and the intermediate layer and part of the parent materials are heated to melt and re-solidify to form a connection, thereby achieving a fixed connection between ceramic and metal.
- a plurality of first welding teeth 141 are disposed on the side of the first action portion 14 facing away from the welding base body 12 , and the outer surface of at least some of the first welding teeth 141 is configured as a spherical surface.
- a plurality of first welding teeth 141 are disposed on the top surface of the first action portion 14 , and the plurality of first welding teeth 141 are used to support the workpiece to be welded, thereby increasing the contact friction between the workpiece to be welded and the welding base 10 , preventing the workpiece to be welded and the welding base 10 from slipping during ultrasonic high-frequency welding, ensuring the stability of the position of the workpiece to be welded, and thus ensuring the welding quality.
- the outer surface of the first welding tooth 141 is configured as a spherical surface.
- the spherical surface is more The contact surface between the first welding tooth 141 and the workpiece to be welded is larger, which reduces the wear between the first welding tooth 141 and the workpiece to be welded, prolongs the service life of the first welding tooth 141, and further prolongs the service life of the welding seat 10.
- the radius of the first welding tooth 141 is 0.7-1.0 mm, so that the first welding tooth 141 has better support and is not easily worn.
- the radius of the first welding tooth 141 is 0.8 mm.
- the welding head 30 includes a welding head base 32 and a second action portion 34 .
- the second action portion 34 is disposed on the welding head base 32 and faces the first action portion 14 , and the second action portion 34 is a ceramic component.
- the welding head 30 in the ultrasonic welding machine is used as an output part of ultrasonic waves, and is used to transmit ultrasonic waves to the workpieces to be welded after contacting with the workpieces to be welded.
- the welding head 30 is controlled to move in the direction close to and away from the welding seat 10. When the welding head 30 is controlled to move in the direction close to the welding seat 10, the welding work starts, and when the welding head 30 is controlled to move in the direction away from the welding seat 10, the welding work ends.
- the welding head 30 includes a welding head base 32 and a second action part 34, and the second action part 34 is arranged on the welding head base 32, and the second action part 34 is a ceramic part.
- the welding head base 32 serves as a bearing base for the second action part 34, and is generally made of metal and has strong support.
- the second action part 34 is integrally arranged on the welding head base 32, and is used to support the workpiece to be welded, for example, for supporting the electrode material.
- the second action part 34 is a ceramic part, which has good high temperature resistance and wear resistance. During the ultrasonic welding process, the second action part 34 will not adhere to the workpiece to be welded due to high temperature or friction.
- the second action portion 34 and the welding head base 32 are welded to each other, so that the ceramic second action portion 34 is directly welded to the metal welding base by welding, and the second action portion 34 and the welding head base 32 are integrated.
- the welding head 30 is provided in the ultrasonic welding machine, and contacts the workpiece to be welded by using the second action part 34.
- the welding head 30 in the ultrasonic welding machine moves toward the welding seat 10 and clamps the workpiece to be welded, the welding head 30 transmits high-frequency vibration ultrasonic waves to the workpiece to be welded.
- the second action part 34 in the welding head 30 is integrated with the welding head base 32.
- the second action part 34 will not shake relative to the welding head base 32 when transmitting high-frequency vibration, so as to ensure the welding effect.
- the second action part 34 is a ceramic part, which can prevent the workpiece to be welded from adhering to the second action part 34. In this way, the welding effect is ensured while effectively preventing the workpiece to be welded from adhering to the welding head 30.
- Instantaneous liquid phase connection is a material connection method, that is, an intermediate layer is added between the connected parent materials, and the intermediate layer and part of the parent materials are heated to melt and re-solidify to form a connection, thereby achieving a fixed connection between ceramic and metal.
- a second action portion 34 is provided with a plurality of second welding teeth 341 on the side facing away from the welding head base 32, and the outer surface of at least some of the second welding teeth 341 is configured as a spherical surface.
- a plurality of second welding teeth 341 are provided on the top surface of the second action portion 34, and the plurality of second welding teeth 341 are in contact with the workpiece to be welded, thereby increasing the friction force of the contact between the workpiece to be welded and the welding head 30, preventing the workpiece to be welded and the welding head 30 from slipping during the ultrasonic high-frequency welding process, ensuring the stability of the position of the workpiece to be welded, and thus ensuring the welding quality.
- the outer surface of at least part of the second welding tooth 341 is constructed as a spherical surface.
- the contact surface between the spherical welding tooth and the workpiece to be welded is larger, which reduces the wear between the second welding tooth 341 and the workpiece to be welded, extends the service life of the second welding tooth 341, and thereby extends the service life of the welding head 30.
- the radius of the second welding tooth 341 is 0.7-1.0 mm, so that the second welding tooth 341 has better support and is not easily worn.
- the radius of the second welding tooth 341 is 0.8 mm.
- the ultrasonic welding machine also includes a generator and a transducer system.
- the transducer system is arranged between the generator and the welding head 30.
- the generator generates a high-voltage, high-frequency signal of 20KHz (or 15KHz).
- the signal is converted into a high-frequency mechanical vibration through the transducer system and transmitted to the welding head 30, and then applied to the workpiece to be welded.
- the temperature transmitted to the interface is increased through the friction between the surface of the workpiece to be welded and the molecules. When the temperature reaches the melting point of the workpiece to be welded itself, the interface of the workpiece to be welded is rapidly melted and then filled in the gap between the interfaces.
- the vibration stops the workpiece to be welded is cooled and shaped under a certain pressure at the same time, and welding is achieved.
- the present application provides an ultrasonic welding unit 100, comprising a welding seat 10 and a welding head 30, the welding seat 10 and the welding head 30 are arranged opposite to each other, and the welding head 30 is controlled to move in the direction of approaching and moving away from the welding seat 10.
- the welding seat 10 is used to support the workpiece to be welded, and the welding head 30 can be raised and lowered relative to the welding seat 10.
- the welding head 30 transmits ultrasonic high-frequency vibration to the workpiece to be welded, thereby completing the welding work.
- the present application provides a welding seat 10 as described above.
- the welding seat 10 includes a welding seat base 12 and a first action portion 14, the first action portion 14 is arranged on the welding seat base 12, the first action portion 14 is a ceramic part, and the first action portion 14 is integrated with the welding seat base 12.
- the welding seat base 12 serves as a bearing base for the first action portion 14, and is generally made of metal and has strong support.
- the first action portion 14 is integrated on the welding seat base 12 to support the workpiece to be welded, for example, to support the electrode material.
- the first action portion 14 is a ceramic part, which has good high temperature resistance and wear resistance. During the ultrasonic welding process, the first action portion 14 will not adhere to the workpiece to be welded due to high temperature or friction.
- the welding seat 10 is provided in an ultrasonic welding machine, and the first action part 14 is used to support the workpiece to be welded, for example, to support the electrode material in the battery.
- the welding head 30 in the ultrasonic welding machine moves close to the welding seat 10 and clamps the workpiece to be welded, the welding head 30 transmits high-frequency vibration ultrasonic waves to the workpiece to be welded.
- the first action part 14 in the welding seat 10 is integrated with the welding seat base 12.
- the first action part 14 will not shake relative to the welding seat base 12 after being subjected to high-frequency vibration.
- the first action part 14 can provide effective support for the workpiece to be welded and ensure the welding effect.
- the first action part 14 is a ceramic part, which can prevent the workpiece to be welded from adhering to the first action part 14. In this way, the welding effect is ensured while effectively preventing the workpiece to be welded from adhering to the welding seat 10.
- the present application provides a welding unit 100, including a welding seat 10 and a welding head 30, the welding seat 10 includes a welding seat base 12 and a first action portion 14, the first action portion 14 is provided on the welding seat base 12, the first action portion 14 is a ceramic part, and the first action portion 14 is integrated with the welding seat base 12.
- the welding head 30 includes a welding head base 32 and a second action portion 34, the second action portion 34 is provided on the welding head base 32, the second action portion 34 is a ceramic part, and the second action portion 34 is integrated with the welding head base 32.
- the first acting part 14 and the second acting part 34 are both ceramic parts, which have good high temperature resistance and wear resistance. During the ultrasonic welding process, the first acting part 14 and the second acting part 34 will not adhere to the workpiece due to high temperature or friction. In addition, the first acting part 14 is welded to the welding base 12, and the second acting part 34 is welded to the welding head base 32. The first acting part 14 and the second acting part 34 are integrated. When high-frequency ultrasonic waves are transmitted to the first acting part 14 and the second acting part 34, the first acting part 14 and the second acting part 34 will not shake, thereby ensuring the welding effect. In this way, while effectively preventing The welding effect is ensured while the workpiece to be welded is bonded to the welding seat 10 .
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Abstract
本申请涉及一种焊座、超声波焊接单元及超声波焊接机，焊座包括：焊座基体；第一作用部，第一作用部设于焊座基体上；其中，第一作用部为陶瓷件，且第一作用部与焊座基体一体化设置。上述焊座设于超声波焊接机中，利用第一作用部用于支撑待焊件，例如用于支撑电池中的电极材料，当超声波焊接机中的焊头向靠近焊座移动并夹持待焊件时，焊头向待焊件传导高频振动的超声波，同时焊座中的第一作用部与焊座基体一体化设置，第一作用部在受到高频振动后不会相对焊座基体晃动，第一作用部可为待焊件提供有效的支撑，保证焊接效果。同时，第一作用部为陶瓷件，可防止待焊件与第一作用部粘接。如此，在有效防止待焊件与焊座粘接的同时保证焊接效果。
Description
交叉引用
本申请引用于2022年09月27日递交的名称为“焊座、焊接单元及超声波焊接机”的第2022111780162号中国专利申请，其通过引用被全部并入本申请。
本申请涉及超声焊接技术领域，特别是涉及焊座、焊接单元及超声波焊接机。
节能减排是汽车产业可持续发展的关键，电动车辆由于其节能环保的优势成为汽车产业可持续发展的重要组成部分。对于电动车辆而言，电池技术又是关乎其发展的一项重要因素。
在电池中电极材料为重要的组成部分，电极材料的质量至关重要。一般地，通过超声波焊接机来焊接电极材料，例如焊接转接片与极耳，但是相关技术中焊接质量不佳。
发明内容
鉴于上述问题，本申请提供一种焊座、焊接单元及超声波焊接机，以提高超声波焊接电极材料的焊接质量。
第一方面，本申请提供了一种焊座，设于超声波焊接机中，且所述焊座包括：
焊座基体；
第一作用部，所述第一作用部设于所述焊座基体上；
其中，所述第一作用部为陶瓷件，且所述第一作用部与所述焊座基体一体化设置。
上述焊座设于超声波焊接机中，利用第一作用部用于支撑待焊件，例如用于支撑电池中的电极材料，当超声波焊接机中的焊头向靠近焊座移动并夹持待焊件时，焊头向待焊件传导高频振动的超声波，同时焊座中的第一作用部与焊座基体一体化设置，第一作用部在受到高频振动后不会相对焊座基体晃动，第一作用部可为待焊件提供有效的支撑，保证焊接效果。同时，第一作用部为陶瓷件，可防止待焊件与第一作用部粘接。如此，在有效防止待焊件与焊座粘接的同时保证焊接效果。
在其中一实施例中，所述第一作用部与所述焊座基体相互焊接。
在其中一实施例中，所述第一作用部与所述焊座基体通过瞬时液相连接方式焊接。
在其中一实施例中，所述第一作用部背向所述焊座基体的一侧设置有多个第一焊齿，至少部分所述第一焊齿的外表面被构造为球形面。
在其中一实施例中，所述第一焊齿的半径为0.7-1.0mm。
第二方面，本申请提供了一种超声波焊接单元，包括焊头及上述焊座，所述焊头与所述焊座相对设置，且所述焊头受控向靠近和远离所述焊座的方向移动。
在其中一实施例中，所述焊头包括焊头基体和第二作用部，所述第二作用部设于所述焊头基体上且面向所述第一作用部，且所述第二作用部为陶瓷件。
在其中一实施例中，所述第二作用部与所述焊头基体相互焊接。
在其中一实施例中，所述第二作用部与所述焊头基体通过瞬时液相连接方式焊接。
在其中一实施例中，所述第二作用部背向所述焊头基体的一侧设置有多个第二焊齿，至少部分所述第二焊齿的外表面被构造为球形面。
在其中一实施例中，所述第二焊齿的直径为0.7-1.0mm。
第三方面，本申请提供了一种超声波焊接单元，包括上述超声波焊接单元。
通过阅读对下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本申请的限制。而且在全部附图中，用相同的附图标号表示相同的部件。在附图中：
图1为本申请一实施例中焊接单元的结构示意图；
图2为图1所示焊接单元中第一作用部的结构示意图；
图3为图1所示焊接单元中第二作用部的结构示意图。
具体实施方式中的附图标号如下：
100、焊接单元；10、焊座；12、焊座基体；14、第一作用部；141、第一焊齿；30、焊头；32、焊头基体；34、第二作用部；341、第二焊齿。
下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。在本申请实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请实施例的描述中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请实施例的描述中，术语“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
在本申请实施例的描述中，技术术语“中心”“纵向”“横向”“长度”“宽度”“厚度”“上”“下”“前”“后”“左”“右”“竖直”“水平”“顶”“底”“内”“外”“顺时针”“逆时针”“轴向”“径向”“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。
在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“安装”“相连”“连接”“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
目前，从市场形势的发展来看，动力电池的应用越加广泛。动力电池不仅被应用于水力、火力、风力和太阳能电站等储能电源系统，而且还被广泛应用于电动自行车、电动摩托车、电动汽车等电动交通工具，以及军事装备和航空航天等多个领域。随着动力电池应用领域的不断扩大，其市场的需求量也在不断地扩增。
本申请的申请人注意到，电极材料作为电池的核心部件，电极材料的焊接质量尤为重要。一般地，通过超声波焊接机进行电极材料的焊接，例如焊接转接片与极耳，具体将极耳和转接片由下至上层叠放置在焊座上，然后通过超声波换能器将超声频电源提供的电能转换为高频振动的机械能，通过超声波调幅器和焊头将能量传递到转接片及极耳，在焊头与焊座之间的压力和超声的双重作用下，实现转接片与极耳的焊接。并且，超声波焊接的过程中会产生高频振动，为了防止焊座与电极材料在高频振动的作用下粘连，影响焊接效果，一般在焊座上设置陶瓷嵌块，通过陶瓷嵌块支撑电极材料，但是利用这种焊座仍然会导致焊接不良。具体而言，陶瓷嵌块通过紧固件固定在焊座的本体上，在高频振动的作用下陶瓷嵌块很容易晃动，进而带动被焊接的电极材料晃动而影响焊接质量。
为了保证焊接质量，申请人研究发现，可以将陶瓷嵌块和焊座基体一体化设置，如此陶瓷嵌块与焊座基体之间不会产生相对晃动，进而可利用陶瓷嵌块防止粘接的同时，不会因为陶瓷嵌块晃动而影响焊接性能，进而保证焊接效果。
本申请实施例公开的焊座、超声波焊接单元及超声波焊接机可用于焊接电极材料，同样还可用于焊接其他待焊件，在此不做限定。
根据本申请的一些实施例中，参阅图1，本申请提供了一种超声波焊接机，包括超声波焊接单元100，超声波焊接单元100包括焊座10和焊头30，焊座10和焊头30相对设置，焊头30受控向靠近和远离焊座10的方向移动。其中，焊座10用于支撑待焊件，焊头30可相对焊座10升降，当焊头30靠近焊座10并与焊座10夹持待焊件时，焊头30向待焊件传递超声波高频振动，进而完成焊接工作。
焊座10包括焊座基体12和第一作用部14，第一作用部14设于焊座基体12上，第一作用部14为陶瓷件，且第一作用部14与焊座基体12一体化设置。
焊座基体12作为第一作用部14的承载基础，一般由金属制成，具有较强的支撑性。
第一作用部14一体化设置于焊座基体12上，用于支撑待焊件，例如用于支撑电极材料。并且，第一作用部14为陶瓷件，具有较好的耐高温及耐磨损性能，在超声波焊接过程中，第一作用部14不会由于高温或者摩擦与待焊件粘连。
上述焊座10设于超声波焊接机中，利用第一作用部14用于支撑待焊件，例如用于支撑电池中的电极材料，当超声波焊接机中的焊头30向靠近焊座10移动并夹持待焊件时，焊头30向待焊件传导高频振动的超声波，同时焊座10中的第一作用部14与焊座基体12一体化设置，第一作用部14在受到高频振动后不会相对焊座基体12晃动，第一作用部14可为待焊件提供有效的支撑，保证焊接效果。同时，第一作用部14为陶瓷件，可防止待焊件与第一作用部14粘接。如此，在有效防止待焊件与焊座10粘接的同时保证焊接效果。
一些实施例中，第一作用部14与焊座基体12相互焊接，如此通过焊接直接将陶瓷的第一作用部14焊接到金属的焊接基体上，将第一作用部14与焊座基体12一体化设置。
进一步地，第一作用部14与焊座基体12通过瞬时液相连接方式焊接。瞬间液相连接是在一种材料的连接方法，即在被连接母材中间加入中间层，加热使中间层与部分母材熔化并重新凝固而形成连接的过程，如此实现陶瓷与金属的固定连接。
参阅图2，一些实施例中，第一作用部14背向焊座基体12的一侧设置有多个第一焊齿141，至少部分第一焊齿141的外表面被构造为球形面。如此，在第一作用部14的顶面上设置多个第一焊齿141，通过多个第一焊齿141支撑待焊件，提高待焊件与焊座10之间接触的摩擦力，防止在超声波高频焊接过程中待焊件与焊座10之间打滑，保证待焊件位置的稳定性，进而保证焊接质量。
并且，至少部分第一焊齿141的外表面被构造为球形面，相比传统尖角形的焊齿，球
形焊齿与待焊件的接触面更大，减小第一焊齿141与待焊件之间的磨损，延长第一焊齿141的使用寿命，进而延长焊座10的使用寿命。
可选地，第一焊齿141的半径为0.7-1.0mm，以使第一焊齿141具有较好的支撑性，同时不容易被磨损。例如，第一焊齿141的半径为0.8mm。
参阅图1，一些实施例中，焊头30包括焊头基体32和第二作用部34，第二作用部34设于焊头基体32上且面向第一作用部14，且第二作用部34为陶瓷件。
焊头30在超声波焊接机中，作为超声波的输出件，用于与待焊件接触后向待焊件传递超声波。并且，焊头30受控向靠近和远离焊座10的方向移动，当焊头30受控向靠近焊座10的方向移动时，开始进行焊接工作，当焊头30受控向远离焊座10的方向移动时，结束焊接工作。
进一步地，焊头30包括焊头基体32和第二作用部34，第二作用部34设于焊头基体32上，第二作用部34为陶瓷件。焊头基体32作为第二作用部34的承载基础，一般由金属制成，具有较强的支撑性。第二作用部34一体化设置于焊头基体32上，用于支撑待焊件，例如用于支撑电极材料。并且，第二作用部34为陶瓷件，具有较好的耐高温及耐磨损性能，在超声波焊接过程中，第二作用部34不会由于高温或者摩擦与待焊件粘连。
一些实施例中，第二作用部34与焊头基体32相互焊接，如此通过焊接直接将陶瓷的第二作用部34焊接到金属的焊接基体上，将第二作用部34与焊头基体32一体化设置。
焊头30设于超声波焊接机中，利用第二作用部34与待焊件接触。当超声波焊接机中的焊头30向靠近焊座10移动并夹持待焊件时，焊头30向待焊件传导高频振动的超声波，同时焊头30中的第二作用部34与焊头基体32一体化设置，第二作用部34在传递高频振动时不会相对焊头基体32晃动，以保证焊接效果。同时，第二作用部34为陶瓷件，可防止待焊件与第二作用部34粘接。如此，在有效防止待焊件与焊头30粘接的同时保证焊接效果。
进一步地，第二作用部34与焊头基体32通过瞬时液相连接方式焊接。瞬间液相连接是在一种材料的连接方法，即在被连接母材中间加入中间层，加热使中间层与部分母材熔化并重新凝固而形成连接的过程，如此实现陶瓷与金属的固定连接。
参阅图3，一些实施例中，第二作用部34背向焊头基体32的一侧设置有多个第二焊齿341，至少部分第二焊齿341的外表面被构造为球形面。如此，在第二作用部34的顶面上设置多个第二焊齿341，通过多个第二焊齿341与待焊件接触，提高待焊件与焊头30之间接触的摩擦力，防止在超声波高频焊接过程中待焊件与焊头30之间打滑，保证待焊件位置的稳定性，进而保证焊接质量。
并且，至少部分第二焊齿341的外表面被构造为球形面，相比传统尖角形的焊齿，球形焊齿与待焊件的接触面更大，减小第二焊齿341与待焊件之间的磨损，延长第二焊齿341的使用寿命，进而延长焊头30的使用寿命。
可选地，第二焊齿341的半径为0.7-1.0mm，以使第二焊齿341具有较好的支撑性，同时不容易被磨损。例如，第二焊齿341的半径为0.8mm。
一些实施例中，超声波焊接机还包括发生器和换能系统，换能系统设于发生器与焊头30之间，发生器产生20KHz(或15KHz)的高压、高频信号，通过换能系统把信号转换为高频机械振动并传递给焊头30，进而施加给待焊件，通过待焊件表面及在分子间的磨擦而使传递到接口的温度升高，当温度达到此待焊件本身的熔点时，使待焊件的接口迅速熔化，继而填充于接口间的空隙，当震动停止，待焊件同时在一定的压力下冷却定形，便达成焊接。
参阅图1，根据本申请的一些实施例中，本申请提供了一种上述超声波焊接单元100，包括焊座10和焊头30，焊座10和焊头30相对设置，焊头30受控向靠近和远离焊座10的方向移动。其中，焊座10用于支撑待焊件，焊头30可相对焊座10升降，当焊头30靠近焊座10并与焊座10夹持待焊件时，焊头30向待焊件传递超声波高频振动，进而完成焊接工作。
根据本申请的一些实施例中，本申请提供了一种上述焊座10。焊座10包括焊座基体12和第一作用部14，第一作用部14设于焊座基体12上，第一作用部14为陶瓷件，且第一作用部14与焊座基体12一体化设置。焊座基体12作为第一作用部14的承载基础，一般由金属制成，具有较强的支撑性。第一作用部14一体化设置于焊座基体12上，用于支撑待焊件，例如用于支撑电极材料。并且，第一作用部14为陶瓷件，具有较好的耐高温及耐磨损性能，在超声波焊接过程中，第一作用部14不会由于高温或者摩擦与待焊件粘连。
上述焊座10设于超声波焊接机中，利用第一作用部14用于支撑待焊件，例如用于支撑电池中的电极材料，当超声波焊接机中的焊头30向靠近焊座10移动并夹持待焊件时，焊头30向待焊件传导高频振动的超声波，同时焊座10中的第一作用部14与焊座基体12一体化设置，第一作用部14在受到高频振动后不会相对焊座基体12晃动，第一作用部14可为待焊件提供有效的支撑，保证焊接效果。同时，第一作用部14为陶瓷件，可防止待焊件与第一作用部14粘接。如此，在有效防止待焊件与焊座10粘接的同时保证焊接效果。
根据本申请的一些实施例中，本申请提供了一种焊接单元100，包括焊座10和焊头30，焊座10包括焊座基体12和第一作用部14，第一作用部14设于焊座基体12上，第一作用部14为陶瓷件，且第一作用部14与焊座基体12一体化设置。焊头30包括焊头基体32和第二作用部34，第二作用部34设于焊头基体32上，第二作用部34为陶瓷件，且第二作用部34与焊头基体32一体化设置。
其中，第一作用部14及第二作用部34均为陶瓷件，具有较好的耐高温及耐磨损性能，在超声波焊接过程中，第一作用部14及第二作用部34不会由于高温或者摩擦与待焊件粘连。并且，第一作用部14焊接于焊座基体12上，第二作用部34焊接于焊头基体32上，第一作用部14及第二作用部34一体化设置，当高频超声波传递到第一作用部14及第二作用部34上时，第一作用部14及第二作用部34不会晃动，进而可保证焊接效果。如此，在有效防止
待焊件与焊座10粘接的同时保证焊接效果。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。
Claims (12)
- 一种焊座，其特征在于，设于超声波焊接机中，且所述焊座包括：焊座基体；第一作用部，所述第一作用部设于所述焊座基体上；其中，所述第一作用部为陶瓷件，且所述第一作用部与所述焊座基体一体化设置。
- 根据权利要求1所述的焊座，其特征在于，所述第一作用部与所述焊座基体相互焊接。
- 根据权利要求2所述的焊座，其特征在于，所述第一作用部与所述焊座基体通过瞬时液相连接方式焊接。
- 根据权利要求1-3任意一项所述的焊座，其特征在于，所述第一作用部背向所述焊座基体的一侧设置有多个第一焊齿，至少部分所述第一焊齿的外表面被构造为球形面。
- 根据权利要求4所述的焊座，其特征在于，所述第一焊齿的半径为0.7-1.0mm。
- 一种超声波焊接单元，其特征在于，包括焊头及上述权利要求1-5任意一项所述的焊座，所述焊头与所述焊座相对设置，且所述焊头受控向靠近和远离所述焊座的方向移动。
- 根据权利要求6所述的超声波焊接单元，其特征在于，所述焊头包括焊头基体和第二作用部，所述第二作用部设于所述焊头基体上且面向所述第一作用部，且所述第二作用部为陶瓷件。
- 根据权利要求7所述的超声波焊接单元，其特征在于，所述第二作用部与所述焊头基体相互焊接。
- 根据权利要求8所述的超声波焊接单元，其特征在于，所述第二作用部与所述焊头基体通过瞬时液相连接方式焊接。
- 根据权利要求7-9任意一项所述的超声波焊接单元，其特征在于，所述第二作用部背向所述焊头基体的一侧设置有多个第二焊齿，至少部分所述第二焊齿的外表面被构造为球形面。
- 根据权利要求10所述的超声波焊接单元，其特征在于，所述第二焊齿的直径为0.7-1.0mm。
- 一种超声波焊接机，其特征在于，包括权利要求6-11任意一项所述的超声波焊接单元。
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| CN115283812A (zh) * | 2022-09-27 | 2022-11-04 | 江苏时代新能源科技有限公司 | 焊座、焊接单元及超声波焊接机 |
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| JP3713135B2 (ja) * | 1997-10-30 | 2005-11-02 | 日本特殊陶業株式会社 | 超音波ホーン |
| CN209850098U (zh) * | 2019-01-30 | 2019-12-27 | 必能信超声(上海)有限公司 | 超声波焊接机 |
| CN210731342U (zh) * | 2019-09-25 | 2020-06-12 | 宁德时代新能源科技股份有限公司 | 焊接头及焊接装置 |
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| JPH11128837A (ja) * | 1997-10-30 | 1999-05-18 | Ngk Spark Plug Co Ltd | 超音波ホーン |
| JP2001205452A (ja) * | 2000-01-24 | 2001-07-31 | Toshiba Corp | 超音波溶接装置、超音波溶接方法および密閉電池とその製造方法 |
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| CN215919402U (zh) * | 2021-10-12 | 2022-03-01 | 无锡骄成智能科技有限公司 | 一种防止极耳破裂的超声波焊头结构 |
| CN115283812A (zh) * | 2022-09-27 | 2022-11-04 | 江苏时代新能源科技有限公司 | 焊座、焊接单元及超声波焊接机 |
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