Welding device for wiring terminal of thin film capacitor

Abstract

The utility model relates to the technical field of production and processing of thin film capacitors, and provides a welding device for a wiring terminal of a thin film capacitor, which comprises a rack and a workbench fixed on the rack, a protective cover is arranged at the top of the workbench, and a metal spraying gun is arranged in the protective cover. The protection mechanism is designed to be matched with the filtering mechanism, physical isolation and protection can be provided through the arrangement of the protection mechanism, sputter or gas leakage in the welding process is prevented, safety in the welding process is ensured, meanwhile, emission of harmful gas and particulate matter generated in the welding process can be remarkably reduced through the cooperation of the protection mechanism and the filtering mechanism, and the welding quality is improved. The health of workers is further protected, and environmental pollution is reduced; welding impurities on the inner wall of the protective cover can be automatically cleaned, it can be guaranteed that the interior of the protective cover is kept clean, the impurities cannot be brought into a new welding process when the protective cover is used again, and then the welding quality and reliability of the thin film capacitor are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of film capacitor production and processing, and in particular to a welding device for film capacitor connection terminals. Background Art

[0002] The existing device starts the electric slide rail so that the slider can move along the track wall of the electric slide rail, thereby realizing continuous welding. The slider moves synchronously with the clamping plate. Before welding, the film capacitor is clamped between the two jackets. Since a spring is provided between the rocker arm and the bracket, the rocker arm can rotate along the end of the bracket, so that the jacket can rotate a certain angle with the rocker arm, and then the distance between the two jackets can be adjusted to meet the clamping requirements of film capacitors of different sizes.

[0003] The above-mentioned device is open when welding film capacitors. However, spatter will be generated during the welding process, and the spatter will fly towards the operator or surrounding equipment, causing personal injury or equipment damage. At the same time, smoke and gas will be generated during welding. These fumes contain harmful substances, such as lead in solder fume. These fumes and gases will spread to the surrounding environment, posing a health risk to the operator and surrounding personnel. Therefore, a welding device for film capacitor terminals is needed. Utility Model Content

[0004] In order to address the shortcomings of the prior art, the present invention provides a welding device for film capacitor terminals, which solves the problem of high safety hazards in film capacitor welding in the above-mentioned background technology.

[0005] The technical solution of the utility model is as follows: a welding device for film capacitor terminals, comprising a frame and a workbench fixed to the frame, a protective cover provided on the top of the workbench, a metal spray gun provided inside the protective cover, and a protective mechanism provided on the frame for driving the protective cover downward to form a closed welding operation area on the workbench;

[0006] The protective mechanism includes a cylinder fixed on the frame, the telescopic end of the cylinder is fixedly connected to the mounting rod, the gold spray gun is fixed to the bottom end of the mounting rod, the mounting rod is provided with a limiting component that allows the protective cover to slide directionally along its outer wall, and the top of the protective cover is provided with a cleaning component that cooperates with the limiting component to make it vibrate periodically.

[0007] Preferably, the limiting assembly includes a through hole opened in the center of the protective cover, and sliders are fixedly connected to both sides of the inner wall of the through hole, and two sliding grooves for vertical sliding of the sliders are vertically symmetrically opened on both sides of the mounting rod.

[0008] Preferably, the cleaning cover assembly includes a magnetic ring fixed on the top of the protective cover, the outer wall of the telescopic end of the cylinder is fixedly connected to a rubber diaphragm, the bottom of the rubber diaphragm is fixedly connected to an electromagnetic ring, and the outer wall of the mounting rod is provided with a reset spring, and the two ends of the reset spring are respectively fixedly connected to the rubber diaphragm and the protective cover.

[0009] Preferably, a sealing assembly is provided on the top of the workbench to isolate the airflow inside the sealed protective cover. The sealing assembly includes a sealing ring fixed on the top of the workbench, and a sealing groove is provided at the bottom of the protective cover. The sealing ring is clamped in the sealing groove to be sealed and detachable.

[0010] Preferably, the frame is provided with a filter mechanism for absorbing and purifying the welding airflow, and the filter mechanism comprises a purification cylinder fixed on the frame, and a filter assembly for purifying the welding airflow is provided inside the purification cylinder.

[0011] Preferably, the filter assembly includes a HEPA filter and an activated carbon filter fixed inside the purification cartridge by snap fasteners.

[0012] Preferably, an air pump is fixedly connected to the side of the purification cylinder, the air outlet end of the air pump is fixedly connected to the interior of the purification cylinder, the air suction end of the air pump is fixedly connected to a telescopic tube, the end face of the telescopic tube is fixedly connected to the interior of the protective cover, and the top of the purification cylinder is fixedly connected to an exhaust pipe.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model is designed with a protective mechanism in combination with a filtering mechanism. The setting of the protective mechanism can provide physical isolation and protection to prevent spatter or gas leakage during welding, ensuring safety during the welding process. At the same time, the combination with the filtering mechanism can significantly reduce the emission of harmful gases and particulate matter generated during welding, further protecting workers' health and reducing environmental pollution.

[0015] 2. The utility model can ensure that the inside of the protective cover remains clean by automatically cleaning the welding impurities on the inner wall of the protective cover, and will not bring impurities into the new welding process when it is used again, thereby ensuring the quality and reliability of the film capacitor welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the bottom-up structure proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the partial cross-sectional plan structure proposed by the utility model;

[0020] Figure 4 This is a schematic diagram of the partial three-dimensional structure proposed by the utility model.

[0021] In the figure: 1. Frame; 2. Workbench; 3. Protective cover; 4. Protective mechanism; 41. Cylinder; 42. Mounting rod; 43. Electromagnetic ring; 44. Magnetic ring; 45. Sealing assembly; 451. Sealing ring; 452. Sealing groove; 46. Return spring; 5. Filter mechanism; 51. Vacuum pump; 52. Telescopic tube; 53. Purification cartridge; 531. HEPA filter; 532. Activated carbon filter; 54. Exhaust pipe; 6. Spray gun. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The soldering equipment for film capacitor terminals is specially designed for handling this type of electronic components, aiming to ensure the precision, quality and safety of the soldering process.

[0024] Existing devices use open welding for film capacitors. However, the welding process generates spatter, which can fly toward the operator or surrounding equipment, causing personal injury or equipment damage. Furthermore, welding generates smoke and gas, which contain hazardous substances, such as lead in solder fume. These smoke and gas can spread into the surrounding environment, posing health risks to the operator and surrounding personnel. Figure 1-Figure 4 This embodiment provides a welding device for film capacitor terminals, including a frame 1 and a workbench 2 fixed on the frame 1. A protective cover 3 is provided on the top of the workbench 2, and a gold spray gun 6 is provided inside the protective cover 3. The frame 1 provides overall structural support, and the workbench 2 serves as a working platform thereon. The top is covered with a protective cover 3, and a gold spray gun 6 is provided inside the protective cover 3. The layout and installation of these components are intended to ensure the safety of the welding operation.

[0025] refer to Figure 2-Figure 4As shown, the welding process produces spatter, which can fly toward the operator or surrounding equipment, causing personal injury or equipment damage. Welding also produces smoke and gases, which contain harmful substances, such as lead in solder fumes. These smoke and gases can spread into the surrounding environment, posing health risks to the operator and surrounding personnel. To protect the operator's safety and maintain a clean environment, the following features are implemented: A protective mechanism 4 is provided on the frame 1 to drive the protective cover 3 downward and form an enclosed welding area on the workbench 2. The protective mechanism 4 includes a cylinder 41 fixed to the frame 1. The telescopic end of the cylinder 41 is fixedly connected to a mounting rod 42, and the gold spray gun 6 is fixed to the bottom end of the mounting rod 42. The mounting rod 42 is provided with a limit assembly that allows the protective cover 3 to slide along its outer wall. The limit assembly includes a through hole located in the center of the protective cover 3. Sliders are fixedly connected to the inner wall of the through hole on both sides. Two vertically symmetrical grooves for the sliders to slide vertically are provided on both sides of the mounting rod 42. A sealing assembly 45 is provided on the top of the workbench 2 to isolate the airflow inside the sealed protective cover 3. The sealing assembly 45 includes a sealing ring 451 fixed to the top of the workbench 2. A sealing groove 452 is provided at the bottom of the protective cover 3. The sealing ring 451 is clamped in the sealing groove 452 and is sealed and detachable. The film capacitor to be welded is placed on the top of the workbench 2, and the cylinder 41 is started to drive the telescopic end to drive the mounting rod 42 to move downward. When the protective cover 3 gradually contacts the workbench 2, the sealing ring 451 is gradually clamped into the sealing groove 452. The cylinder 41 continues to drive the telescopic end to move downward, and the mounting rod 42 is gradually placed in the protective cover 3, so that the gold spray gun 6 is close to the film capacitor to be welded for welding.

[0026] refer to Figure 3-Figure 4As shown, the gases, vapors and particles generated during the welding process will be deposited or adhered on the inner wall of the protective cover 3. Over time, cleaning the inner wall of the protective cover 3 requires additional maintenance work, especially if the impurities accumulate seriously, which not only increases the maintenance cost but also leads to increased production downtime. In order to keep the inner wall of the protective cover 3 clean and reduce the adhesion of welding gas impurities, a special setting is made. The top of the protective cover 3 is provided with a cleaning cover component that cooperates with the limit component to make the protective cover 3 shake. The cleaning cover component includes a magnetic ring 44 fixed to the top of the protective cover 3, the outer wall of the telescopic end of the cylinder 41 is fixedly connected to the rubber diaphragm 431, and the bottom of the rubber diaphragm 431 is fixedly connected to the electromagnetic ring 43, and the outer wall of the mounting rod 42 is provided with a reset spring 46, and the two ends of the reset spring 46 are respectively fixedly connected to the rubber diaphragm 431 and the protective cover 3. After the telescopic end of the cylinder 41 pushes the mounting rod 42 to move down to a certain position, the electromagnetic ring 4 3 will be attracted by the magnetic ring 44 and squeeze the reset spring 46. When the gold spray gun 6 finishes welding the film capacitor, the cylinder 41 drives the mounting rod 42 to move upward, causing the protective cover 3 to move away from the workbench 2, and the power of the electromagnetic ring 43 is turned off. The protective cover 3 is reset and shaken by the reset spring 46. When the protective cover 3 is reset upward, the reset spring 46 will generate a certain force. This force can help loosen the impurities on the inner wall of the protective cover 3 and take them out of the protective cover 3. At the same time, the compression and release process of the reset spring 46 can generate vibration or slight swing when the protective cover 3 is reset, thereby helping to remove surface attachments. At the same time, the vibration and swing effects when the protective cover 3 is reset can help to free impurities from the inner wall of the protective cover 3. This mechanical movement can peel off and shake off impurities and small particles remaining in the welding process through inertia and elastic force. At the same time, the reset process is accompanied by gas flow, which can also help to flush or throw impurities from the inner wall.

[0027] refer to Figure 3As shown, volatile organic compounds, nitrogen oxides, carbon monoxide and other harmful gases generated during the welding process are harmful to the workers' respiratory system and health. Long-term exposure can lead to respiratory diseases, poisoning symptoms, and even seriously affect the functions of internal organs. In order to ensure the health and safety of workers, protect product quality, and maintain environmental sustainability, the following settings are made: a filter mechanism 5 for absorbing and purifying the welding airflow is provided on the frame 1. The filter mechanism 5 includes a purification cartridge 53 fixed to the frame 1. A filter assembly for purifying the welding airflow is provided inside the purification cartridge 53. The filter assembly includes a HEPA filter 531 and an activated carbon filter 532 fixed to the inside of the purification cartridge 53 by a buckle. The HEPA filter 531 can effectively filter fine particles in the air and can filter out most particles, including smoke and metal particles generated during the welding process. The activated carbon filter 532 can adsorb volatile organic compounds and some odor substances in the air, thereby effectively removing organic gas components such as carbon monoxide and nitrogen oxides generated during the welding process. An exhaust pump 51 is fixedly connected to the side of the purification cylinder 53, and the air outlet end of the exhaust pump 51 is fixedly connected to the interior of the purification cylinder 53. The exhaust end of the exhaust pump 51 is fixedly connected to a telescopic tube 52, and the end face of the telescopic tube 52 is fixedly connected to the interior of the protective cover 3. The top of the purification cylinder 53 is fixedly connected to an exhaust pipe 54. The protective cover 3 draws the gas generated during the welding process into the purification cylinder 53 through the exhaust pump 51, and purifies it through the HEPA filter 531 and the activated carbon filter 532, which can effectively reduce the gas pollution during the welding process and achieve a certain purification effect.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A welding device for film capacitor terminals, comprising a frame (1) and a workbench (2) fixed on the frame (1), characterized in that: A protective cover (3) is provided on the top of the workbench (2), a gold spray gun (6) is provided inside the protective cover (3), and a protective mechanism (4) is provided on the frame (1) for driving the protective cover (3) to move downward and form a closed welding operation area on the workbench (2); The protective mechanism (4) comprises a cylinder (41) fixed on the frame (1), the telescopic end of the cylinder (41) is fixedly connected to a mounting rod (42), the gold spray gun (6) is fixed to the bottom end of the mounting rod (42), the mounting rod (42) is provided with a limit assembly for making the protective cover (3) slide along its outer wall in a directional manner, and the top of the protective cover (3) is provided with a cleaning cover assembly for cooperating with the limit assembly to make it vibrate periodically.

2. A welding device for film capacitor terminals according to claim 1, characterized in that: The position limiting assembly comprises a through hole provided at the center of the protective cover (3), with sliders fixedly connected to both sides of the inner wall of the through hole, and two sliding grooves for the sliders to slide vertically are provided vertically symmetrically on both sides of the mounting rod (42).

3. A welding device for film capacitor terminals according to claim 1, characterized in that: The cleaning cover assembly comprises a magnetic ring (44) fixed on the top of the protective cover (3); the outer wall of the telescopic end of the cylinder (41) is fixedly connected to a rubber diaphragm (431); the bottom of the rubber diaphragm (431) is fixedly connected to an electromagnetic ring (43); the outer wall of the mounting rod (42) is sleeved with a reset spring (46); and the two ends of the reset spring (46) are respectively fixedly connected to the rubber diaphragm (431) and the protective cover (3).

4. A welding device for film capacitor terminals according to claim 1, characterized in that: A sealing assembly (45) is provided on the top of the workbench (2) for isolating the airflow inside the sealing protective cover (3). The sealing assembly (45) includes a sealing ring (451) fixed on the top of the workbench (2). A sealing groove (452) is provided on the bottom of the protective cover (3). The sealing ring (451) is clamped in the sealing groove (452) to seal and is detachable.

5. The welding device for film capacitor terminals according to claim 1, characterized in that: The frame (1) is provided with a filter mechanism (5) for absorbing and purifying the welding airflow. The filter mechanism (5) comprises a purification cylinder (53) fixed on the frame (1). The purification cylinder (53) is provided with a filter assembly for purifying the welding airflow inside.

6. A welding device for film capacitor terminals according to claim 5, characterized in that: The filter assembly comprises a HEPA filter (531) and an activated carbon filter (532) fixed inside the purification cylinder (53) by snap fastening.

7. The welding device for film capacitor terminals according to claim 5, characterized in that: The side of the purification cylinder (53) is fixedly connected to an air extraction pump (51), the air outlet end of the air extraction pump (51) is fixedly connected to the interior of the purification cylinder (53), the air extraction end of the air extraction pump (51) is fixedly connected to a telescopic tube (52), the end surface of the telescopic tube (52) is fixedly connected to the interior of the protective cover (3), and the top of the purification cylinder (53) is fixedly connected to an exhaust pipe (54).

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