Thin film capacitor metal spraying layer strengthening device and technology

Abstract

The invention relates to a thin film capacitor metal spraying layer strengthening device and process. The device comprises a strengthening box body, a heating baking lamp assembly, an ultraviolet lamp, a round tray, a temperature sensor, a static electricity eliminating device and a box door structure controlled by an air cylinder. And the capacitor roll core is arranged in the through hole of the round tray and is supported by the U-shaped frame. The heating lamp assembly and the ultraviolet lamp are arranged at the two ends of the capacitor roll core respectively, synchronous heating and ultraviolet curing are achieved, and the curing efficiency and uniformity of a metal spraying layer are improved. The temperature sensor is connected with the central control panel, monitors the temperature in the box in real time and automatically adjusts the heating power. The static electricity eliminating device eliminates static electricity through corona discharge between the discharge cone end and the power receiving cone end, and the adhesion quality of the metal spraying layer is improved. The curing process of the metal spraying layer can be accelerated, and the finished product quality and the production efficiency of the thin film capacitor are improved.

Description

Technical Field

[0001] The invention relates to the technical field of capacitor processing, and in particular to a device and process for strengthening a gold spraying layer of a thin film capacitor. Background Art

[0002] Film capacitors are widely used in electronic devices due to their high stability and excellent electrical properties, especially in high-frequency filtering and energy storage. The electrodes of film capacitors usually use a gold spraying process to form a uniform conductive layer to ensure the electrical performance and durability of the capacitor. However, during the curing process of the gold spraying layer, the traditional heating method usually uses a single heating or irradiation method, resulting in a slow and uneven curing speed of the gold spraying layer. This situation can easily cause problems such as uneven electrode surface or weak adhesion, affecting the overall performance and service life of the capacitor.

[0003] Static electricity accumulation is a common problem during the curing process of the gold spray layer of film capacitors. Especially during the processing of thin film materials, static electricity can easily absorb dust or tiny impurities, thus affecting the uniformity and conductivity of the gold spray layer. Traditional static electricity elimination methods usually rely on external manual intervention or static electricity elimination equipment, but their effects are unstable and difficult to continue to work throughout the curing process. Therefore, how to effectively and continuously eliminate static electricity on the surface of the gold spray layer and improve the quality of the gold spray layer has become an urgent problem to be solved.

[0004] In addition, existing gold spray layer curing equipment usually lacks precise temperature control means, and the temperature fluctuates greatly, which can easily lead to insufficient heating or over-curing of the gold spray layer, ultimately affecting the consistency and reliability of the product. Therefore, it is of great practical significance to develop a gold spray layer strengthening device with synchronous heating and ultraviolet irradiation, real-time temperature control, and static elimination functions to achieve efficient and stable gold spray layer curing and improve the quality and production efficiency of film capacitors. Summary of the invention

[0005] The device for strengthening the gold-sprayed layer of a film capacitor provided by the present invention comprises a sealed strengthening box for providing a working environment for heating and ultraviolet irradiation. The specific structure comprises the following main components:

[0006] Strengthening box 1: The strengthening box is a closed structure with heating and ultraviolet light sources inside to provide strengthening conditions for the gold spraying layer of the capacitor core.

[0007] Heating lamp assembly 7: includes lamp bracket 71, reflector 72 and lamp tube 73. Lamp bracket 71 is installed on both sides of the inner wall of the reinforced box 1, and is symmetrically arranged at the two ends of the rotating capacitor core 4. The reflector 72 gathers the light source, so as to heat the gold spraying layer at both ends of the capacitor core synchronously, ensuring uniform heating and improving the curing effect.

[0008] UV lamp 8: The UV lamp is installed at the upper and lower symmetrical positions of the inner wall of the back of the strengthening box 1, and simultaneously irradiates the two ends of the capacitor core 4 with UV light, and cooperates with the heating lamp assembly 7 to accelerate the curing process of the sprayed gold layer.

[0009] Round tray 2 and rotating mechanism: The round tray 2 is designed as a detachable structure, with a plurality of perforations 3 on the surface for fixing the capacitor core 4, and a U-shaped frame 28 is arranged below the perforations to support the capacitor core. The rotating shaft 9 is installed at the center of the round tray through the cooperation of the plug rod 17 and the plug hole 18, and the rotating shaft is driven to rotate by the first motor 10, so that the capacitor core is evenly heated during the strengthening process.

[0010] Temperature sensor 27 and central control panel 6: The temperature sensor is installed on the inner wall of the reinforced box. It monitors the temperature inside the box in real time and feeds back the temperature data to the central control panel. The central control panel automatically adjusts the power of the heating lamp assembly to ensure constant temperature to prevent overheating or insufficient heating, thereby optimizing the curing effect.

[0011] Static elimination device: Multiple discharge cones 19 are provided on the outer circumference of the round tray, and a receiving cone 20 is provided on the inner wall of the back of the reinforced box. The gap between the two is about 1 cm, and the receiving cone is reliably grounded through the ground wire 21. The static electricity on the capacitor core is eliminated by corona discharge between the discharge cone and the receiving cone, avoiding static interference and improving the uniformity and adhesion of the gold spraying layer.

[0012] Cylinder and box door structure: The tail end of the cylinder 22 is hinged to the top of the strengthening box through the rotating base 23, and the push rod is hinged to the door push seat 24 to control the opening and closing of the box door 5. After the strengthening is completed, the cylinder push rod is started to open the box door, which is convenient for the operator to take out the strengthened capacitor core and replace the new workpiece.

[0013] Beneficial Effects

[0014] The device for strengthening the gold spray layer of a film capacitor of the present invention has the following beneficial effects:

[0015] Synchronous heating and UV curing: Through the symmetrically arranged heating lamp assembly and UV lamp, the two ends of the gold-sprayed layer of the capacitor core are heated and irradiated with UV simultaneously, which greatly improves the curing efficiency of the gold-sprayed layer, makes the curing more uniform, and improves the conductivity and durability of the film capacitor.

[0016] Real-time temperature control: The temperature sensor in the strengthening box is connected to the central control panel, which can monitor the temperature in the box in real time and automatically adjust the power of the heating lamp according to demand to keep the strengthening temperature constant and avoid overheating or underheating, thereby ensuring the stability and quality of the gold spraying layer.

[0017] Static elimination device: Through the corona discharge design between the discharge cone end and the receiving cone end, the static electricity on the surface of the capacitor core is effectively eliminated, avoiding the uneven gold spraying layer caused by static interference, and further improving the quality of the finished capacitor.

[0018] Convenient disassembly and installation design: The rod and hole design of the round pallet makes the pallet easy to disassemble and install, which is suitable for mass production, greatly reducing operation time and improving production efficiency.

[0019] Compact structure and space saving: The reinforced box of the present invention is compact in design and easy to install and operate. The cylinder-controlled automatic door opening and closing design effectively reduces manual intervention and improves the automation level of the equipment.

[0020] The device for strengthening the gold spray layer of film capacitors of the present invention is suitable for the mass production process of film capacitors, especially for the gold spray layer strengthening scenario that requires rapid curing and precise temperature control. The device can be applied to the production line of film capacitors in the electronic product manufacturing industry, and is also suitable for other similar process occasions that require gold spray layer treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the external three-dimensional structure of a device according to an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of a cylinder installation structure according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the installation structure of a round tray and a capacitor winding core according to an embodiment of the present invention;

[0025] Figure 4 It is a schematic diagram of the static elimination device and the in-and-out conveying structure of a round tray according to an embodiment of the present invention;

[0026] Figure 5 It is a schematic diagram of the rotary drive of the round tray and the connection structure of the insertion rod and the insertion hole according to an embodiment of the present invention;

[0027] Figure 6 For the embodiment of the present invention Figure 4 Schematic diagram of the enlarged local structure at A (enlarged structure of the heating lamp assembly).

[0028] The markings in the figure are:

[0029] 1. Strengthen the box body; 2. Round tray; 3. Perforation; 4. Capacitor winding core; 5. Box door; 6. Central control panel; 7. Heating and baking lamp assembly; 8. UV lamp; 9. Rotating shaft; 10. First motor; 11. Mounting frame; 12. Connecting seat; 13. Sliding seat; 14. Slide rail; 15. Second motor; 16. Truss; 17. Insert rod; 18. Socket; 19. Discharge cone end; 20. Receiving cone end; 21. Ground wire; 22. Cylinder; 23. Rotating base; 24. Door push seat; 25. Material preparation rack; 26. Lead screw; 27. Temperature sensor; 28. U-shaped frame; 71. Baking lamp bracket; 72. Reflector; 73. Baking lamp tube. DETAILED DESCRIPTION

[0030] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0031] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0032] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0033] Figure 1 The external three-dimensional structure of the device for strengthening the gold spray layer of the thin film capacitor in the embodiment of the present invention is shown. The device includes a strengthening box 1, which is used to provide a closed space for strengthening the gold spray layer of the capacitor core 4. A central control panel 6 is provided on the outside of the box, which can adjust and control parameters such as temperature, time, and rotation speed during the strengthening process in real time. A box door 5 is provided on one side of the box, and its opening and closing is controlled by a cylinder 22 for the entry and exit of workpieces. The outside of the box is also equipped with a material preparation rack 25 for stacking capacitor cores 4 that have not yet been strengthened and round trays 2 to be strengthened.

[0034] Figure 2 The installation structure of the cylinder 22 is shown. The rear end of the cylinder 22 is hinged to the top of the strengthening box 1 through a rotating base 23, and its push rod is hinged with a door push seat 24. When the strengthening is completed, the push rod of the cylinder 22 pushes the door push seat 24, so that the box door 5 is opened, which is convenient for the operator to take out the capacitor winding core 4 that has been strengthened and replace it with a new capacitor winding core 4. This structure can ensure that the inside of the strengthening box 1 remains airtight to prevent external contamination.

[0035] Figure 3 The figure is a schematic diagram of the installation structure of the round tray 2 and the capacitor core 4. The round tray 2 is provided with a plurality of through holes 3, and a U-shaped frame 28 is provided under each through hole 3 to fix the capacitor core 4 on the round tray to ensure that the capacitor core is stable during rotation. A rotating shaft 9 is installed in the center of the round tray to facilitate the motor to drive it to rotate. A truss 16 is provided on the outer periphery of the rotating shaft 9, and a plug rod 17 is provided at the top of both ends of the truss. The plug rod 17 cooperates with the plug hole 18 on the round tray to facilitate quick installation and removal.

[0036] Figure 4 The static elimination device and the in-and-out conveying structure of the round tray are shown. The outer periphery of the round tray 2 is provided with multiple discharge cone ends 19, and the inner wall of the back of the strengthening box 1 is provided with a receiving cone end 20, with a gap of 1 cm between them to achieve corona discharge and eliminate static electricity on the capacitor core 4. The receiving cone end 20 is reliably grounded through the ground wire 21. This design ensures that there is no static electricity accumulation on the surface of the capacitor core 4 during the strengthening process, and improves the quality of the gold spraying layer.

[0037] Figure 5 The figure is a schematic diagram of the connection structure of the round tray rotation drive and the insertion rod 17 and the socket 18. The round tray 2 is connected to the first motor 10 through the rotating shaft 9. The motor drives the rotating shaft to drive the round tray to rotate, so that the capacitor winding core 4 is evenly heated during the heating process. The insertion rod 17 is inserted into the socket 18, which is convenient for quick removal of the round tray, suitable for batch operation, and improves the working efficiency of the device.

[0038] Figure 6 for Figure 4 The enlarged view of the local structure at A in the figure shows the details of the heating lamp assembly. The heating lamp assembly 7 includes a lamp bracket 71, a reflector 72 and a lamp tube 73. The lamp bracket 71 is installed at the upper and lower positions on both sides of the inner wall of the strengthening box 1, and is symmetrically arranged at both ends of the rotating capacitor core 4 to heat the upper and lower ends of the capacitor core simultaneously. The reflector 72 is arranged on both sides of the lamp tube 73 to gather the light source and improve the efficiency of heat energy utilization. In addition, the ultraviolet lamp 8 is installed at the upper and lower symmetrical positions of the inner wall of the back of the strengthening box to accelerate the curing of the gold spray layer.

[0039] Example

[0040] Example 1: Strengthening operation of the gold spray layer of the film capacitor

[0041] Preparation: The operator installs the capacitor winding cores 4 one by one in the perforations 3 of the round tray 2, and fixes them by lifting them with the U-shaped frame 28. The round tray is connected to the rotating shaft 9 through the insertion rod 17 and the insertion hole 18, which facilitates the installation and removal of the round tray.

[0042] Synchronous heating and curing: Start the central control panel 6 and set the appropriate strengthening temperature and time. The first motor 10 drives the round tray 2 to rotate to ensure that the surface of the capacitor core 4 is evenly heated. The heating lamp assembly 7 and the ultraviolet lamp 8 synchronously heat and irradiate the upper and lower ends of the capacitor core 4 with ultraviolet light to achieve rapid curing of the gold spray layer.

[0043] Temperature control: During the strengthening process, the temperature sensor 27 monitors the temperature data in the strengthening box 1 in real time and feeds it back to the central control panel 6. The system automatically adjusts the power of the heating lamp assembly 7 according to the temperature feedback to keep the temperature in the box constant and avoid excessively high or low temperature affecting the curing effect.

[0044] Static electricity elimination: During the strengthening process, the static electricity on the capacitor winding core 4 is eliminated by corona discharge between the discharge cone end 19 and the receiving cone end 20. The receiving cone end 20 is grounded through the ground wire 21, which effectively prevents the influence of static electricity on the quality of the gold spraying layer.

[0045] Completion of removal: After strengthening is completed, the cylinder 22 is started to push the door pusher 24 to open the box door 5, so that the operator can take out the strengthened capacitor core 4 and replace it with a new capacitor core.

[0046] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for strengthening the gold spraying layer of a thin film capacitor, characterized in that: The device comprises: A strengthening box (1) is used to perform ultraviolet irradiation and heating on the gold-sprayed layer of the film capacitor to strengthen the gold-sprayed layer; A round tray (2), the round tray (2) being provided with a plurality of through holes (3) for inserting the capacitor winding core (4), and a U-shaped frame (28) being provided below each through hole (3) for supporting and placing the capacitor winding core (4); A rotating shaft (9) is slidably inserted in the center of the round tray (2), a truss (16) is sleeved on the outer peripheral surface of the rotating shaft (9), and a plug rod (17) is vertically provided at the top of both ends of the truss (16), and two insertion holes (18) are provided on the round tray (2) for inserting the plug rod (17), so that the round tray (2) can be driven to rotate through the cooperation of the plug rod (17) and the insertion hole (18); A first motor (10) is coaxially mounted on the bottom end of the rotating shaft (9) and is used to drive the rotating shaft (9) and the round tray (2) to rotate, thereby driving the capacitor winding core (4) to rotate; The heating lamp assembly (7) comprises a lamp support (71), a reflector (72) and a lamp tube (73), wherein the lamp tube (73) is mounted at the bottom of the lamp support (71), the lamp support (71) is arranged on both sides of the inner wall of the strengthening box (1), and is symmetrically positioned at the two ends of the rotating capacitor winding core (4) so ​​as to simultaneously provide a heat light source to heat the upper and lower ends of the gold spraying layer of the capacitor winding core (4), and the reflector (72) is arranged on both sides of the lamp tube (73) to gather the light source and enhance the irradiation effect; The ultraviolet lamp (8) is installed at upper and lower symmetrical positions on the inner wall of the back of the strengthening box (1), and is located at the two ends of the rotating capacitor winding core (4), and is used to synchronously irradiate the upper and lower ends of the gold spraying layer of the capacitor winding core (4) with ultraviolet light to accelerate the curing of the gold spraying layer; A cylinder (22), the rear end of the cylinder (22) is hinged to the top of the strengthening box (1) through a rotating base (23), and its push rod is hinged to a door push seat (24), and a box door (5) is installed at the bottom of the door push seat (24), and the box door (5) is respectively hinged to the two ends of one side of the opening of the strengthening box (1) for opening the box door (5) after strengthening is completed; A temperature sensor (27) is installed on the inner wall of the strengthening box (1) and is used to monitor the temperature inside the strengthening box (1) in real time; The static electricity elimination device comprises a plurality of discharge cone ends (19) arranged on the outer periphery of a round tray (2), and a power receiving cone end (20) arranged on the inner wall of the back of a reinforced box (1), wherein the tip gap between the power receiving cone end (20) and the discharge cone end (19) is 1 cm, and a ground wire (21) is arranged at the bottom of the power receiving cone end (20) and is reliably grounded, and is used for eliminating static electricity on a capacitor winding core (4) through corona discharge.

2. A device for strengthening the gold spraying layer of a thin film capacitor according to claim 1, characterized in that: The heating lamp assembly (7) comprises a lamp support (71), a reflector (72) and a lamp tube (73). The lamp tube (73) is mounted on the bottom of the lamp support (71), and the reflector (72) is arranged on both sides of the lamp tube (73) so as to gather the light source on the capacitor winding core (4).

3. A device for strengthening the gold spraying layer of a thin film capacitor according to claim 1 or 2, characterized in that: The round tray (2) is slidably inserted on the rotating shaft (9), and a truss (16) is sleeved on the outer periphery of the rotating shaft (9). Insertion rods (17) are vertically provided at the tops of both ends of the truss (16) and cooperate with the insertion holes (18) on the round tray (2) to facilitate the motor (10) to drive the round tray (2) to rotate.

4. The device for strengthening the gold spraying layer of a thin film capacitor according to claim 1, characterized in that: The push rod of the air cylinder (22) is hingedly connected to a door push seat (24), and a box door (5) is installed at the bottom of the door push seat (24) for opening the opening of the strengthening box (1) after strengthening is completed.

5. The device for strengthening the gold spraying layer of a thin film capacitor according to claim 1, characterized in that: A material preparation rack (25) is provided on one side of the exterior of the strengthening box (1) for stacking round trays (2) and capacitor winding cores (4) that have not yet been strengthened.

6. The device for strengthening the gold spraying layer of a thin film capacitor according to claim 1, characterized in that: The temperature sensor (27) on the inner wall of the strengthening box (1) is electrically connected to the external central control panel (6), and the central control panel (6) is used to receive the temperature signal and control the temperature of the heating lamp assembly (7).

7. A process for strengthening the gold spraying layer of a thin film capacitor, characterized in that: The following steps are involved: S1, inserting the capacitor core (4) into the through hole (3) of the round tray (2), and using a U-shaped frame (28) to lift and fix the capacitor core (4); S2, starting the first motor (10) to drive the round tray (2) to rotate, thereby causing the capacitor winding core (4) to rotate; S3, turning on the heating lamp tube (73) of the heating lamp assembly (7) to heat the upper and lower ends of the capacitor winding core (4) synchronously; S4, starting the ultraviolet lamp (8) to simultaneously irradiate the upper and lower ends of the gold-sprayed layer of the capacitor winding core (4) with ultraviolet light to accelerate the solidification of the gold-sprayed layer; S5, monitoring the temperature inside the strengthening box (1) through the temperature sensor (27), and controlling the heating temperature through the central control panel (6); S6, the static electricity elimination device works to eliminate static electricity on the surface of the capacitor winding core (4) through corona discharge between the discharge cone end (19) and the receiving cone end (20); S7. After strengthening is completed, the air cylinder (22) starts and pushes the door pusher (24) to open the box door (5) to facilitate taking out the strengthened capacitor winding core (4).

8. The process according to claim 7, characterized in that During the strengthening process, the temperature is detected in real time by a temperature sensor (27), and the power of the heating lamp assembly (7) is automatically adjusted to maintain a constant strengthening temperature.

9. The process according to claim 7 or 8, characterized in that Heating is performed simultaneously during the UV irradiation process to improve the curing effect of the gold spray layer.

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