Chip type aluminum electrolytic capacitor with high stability

Abstract

The utility model provides a kind of high-stability patch type aluminum electrolytic capacitor, it includes: base, base middle part is equipped with the installation slot for capacitor fixation, capacitor is composed of aluminum shell and cover, aluminum shell bottom is fixedly connected with cover, and cover and installation slot inside inlay clamping, cover bottom is fixedly connected with pin, base bottom is equipped with the guide slot for pin installation, the bottom of base inside guide slot is equipped with limiting mechanism.The application is realized with the installation of capacitor by base, the installation of pin is realized by setting guide slot below base, and the pin inlay is realized by using protrusion and clamping block, the pin can be quickly limited when installing capacitor, ensure that pin coincides with base bottom surface after bending, conveniently close to the surface of PCB when capacitor is installed, ensure that pin does not cause the problem of reducing the effect of close due to warping when base is close, improve the stability after capacitor installation.

Description

Technical Field

[0001] This utility model relates to a highly stable surface-mount aluminum electrolytic capacitor, belonging to the field of electrolytic capacitor technology. Background Technology

[0002] A capacitor, often simply called a capacitor (represented by the letter C), is a device that stores electrical charge and is a key component of electronic circuits. A capacitor consists of two conductors placed close together with a non-conductive insulating dielectric layer sandwiched in between. It stores electrical energy and has the characteristics of charging, discharging, and passing alternating current (AC) while blocking direct current (DC). Capacitors are among the most widely used electronic components in electronic devices, and are extensively applied in circuits for DC blocking, AC passing, coupling, bypassing, filtering, tuning circuits, energy conversion, and control.

[0003] A capacitor consists of two metal electrodes with an insulating dielectric layer between them. When a voltage is applied between the two metal electrodes, charge is stored on the electrodes, making a capacitor an energy storage element. Any two conductors that are insulated from each other and very close together form a capacitor. A parallel-plate capacitor consists of capacitor plates and a dielectric.

[0004] A capacitor is a device that stores electrical charge. Capacitors are usually mounted using a surface-mount design. When surface-mount capacitors are fixed on a PCB board, the deviation caused by bending the leads can easily prevent the leads from effectively fitting with the PCB board. This can lead to soldering defects during subsequent soldering due to the mounting angle of the leads, affecting the stability of the capacitor. Furthermore, it is not easy to quickly fix the leads during capacitor installation, making it difficult for the leads to fit effectively during subsequent soldering, thus affecting the lifespan of the capacitor. Utility Model Content

[0005] This invention addresses the technical problem of poor stability in surface-mount capacitors due to pin issues during installation by providing a highly stable surface-mount aluminum electrolytic capacitor.

[0006] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0007] This utility model provides a high-stability surface-mount aluminum electrolytic capacitor, comprising:

[0008] The base has a mounting groove in the middle for fixing the capacitor. The capacitor consists of an aluminum shell and a cover. The cover is fixedly connected to the bottom of the aluminum shell and is fitted and snapped into the mounting groove. The bottom of the cover is fixedly connected to the pin. The bottom of the base has a guide groove for pin installation. The pin is fitted into the guide groove and extends to the outside. The bottom of the base inside the guide groove is provided with a limiting mechanism.

[0009] In this technical solution, the base has a circular mounting groove, and the top edge of the base located on both sides of the mounting groove has an opening.

[0010] In this technical solution, the top edge of the mounting groove is provided with several evenly distributed protrusions, and the protrusions are engaged with the edge of the circular cover.

[0011] In this technical solution, a flange is fixedly connected to the bottom edge of the aluminum shell, the cover and the sealing cap are fixedly connected, the top edge of the sealing cap is engaged with the flange, and the sealing cap is fitted to the inner wall of the aluminum shell.

[0012] In this technical solution, the aluminum shell has several uniformly distributed aluminum foils inside, the spaces between the aluminum foils are filled with electrolyte, and the inner wall of the aluminum foil is bonded with electrolytic paper, while the outer surface of the aluminum foil is bonded with tape.

[0013] In this technical solution, the bottom of the base is provided with two symmetrically distributed guide grooves, and the side wall of the base between the two guide grooves is provided with an arc-shaped guide groove, and the guide grooves are distributed corresponding to the pins.

[0014] In this technical solution, the guide groove is provided with an arc-shaped protrusion, which is fixedly connected to the bottom of the base.

[0015] In this technical solution, the pin has a bent structure and is located inside the guide groove, and the pin is in contact with the arc-shaped protruding surface.

[0016] In this technical solution, a number of evenly distributed locking blocks are fixedly connected to the bottom of the base, and the locking blocks are located at the bottom edge of the guide groove.

[0017] In this technical solution, the bottom surface of the card block has an arc surface, and the card block is in contact with the edge of the pin.

[0018] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0019] The positive and progressive effects of this utility model are as follows:

[0020] The aforementioned high-stability surface-mount aluminum electrolytic capacitor uses a base for installation. A guide groove is provided under the base for pin installation, and protrusions and locking blocks facilitate pin engagement. This allows for quick pin positioning during capacitor installation, ensuring the pins align with the base surface after bending. This facilitates tight contact between the capacitor and the PCB board surface during installation, preventing pin warping that could reduce the fit. This improves the ease of installation, facilitates subsequent soldering, and enhances the stability of the installed capacitor. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0022] Figure 2 This is a three-dimensional structural diagram of the base of this utility model.

[0023] Figure 3 This is a schematic diagram of the half-section structure of this utility model.

[0024] Figure 4 This is a schematic diagram of the internal three-dimensional structure of the aluminum shell of this utility model.

[0025] Figure 5 This is a schematic diagram of the external front view of the present invention.

[0026] Figure 6 This is a top view of the external structure of this utility model.

[0027] Explanation of reference numerals in the attached figures

[0028] 1. Base; 2. Mounting slot; 3. Aluminum shell; 4. Cover; 5. Sealing cap; 6. Flange; 7. Aluminum foil; 8. Electrolyte; 9. Tape; 10. Raised dot; 11. Pin; 12. Guide groove; 13. Arc-shaped protrusion; 14. Locking block; 15. Arc surface; 16. Guide groove. Detailed Implementation

[0029] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0030] like Figure 1-6 As shown, the high-stability surface-mount aluminum electrolytic capacitor includes:

[0031] The base 1 has a mounting groove 2 for fixing the capacitor in the middle. The capacitor is composed of an aluminum shell 3 and a cover 4. The cover 4 is fixedly connected to the bottom of the aluminum shell 3 and is fitted and snapped into the mounting groove 2. The bottom of the cover 4 is fixedly connected to the pin 11. The bottom of the base 1 has a guide groove 12 for mounting the pin 11. The pin 11 is fitted into the guide groove 12 and extends to the outside. The bottom of the base 1 located inside the guide groove 12 is provided with a limiting mechanism.

[0032] The base 1 has a circular mounting groove 2, and the top edge of the base 1 on both sides of the mounting groove 2 has an opening; the top edge of the mounting groove 2 has several evenly distributed protrusions 10, and the protrusions 10 are engaged with the edge of the circular cover 4; the bottom edge of the aluminum shell 3 is fixedly connected to a flange 6, the cover 4 is fixedly connected to a sealing cap 5, the top edge of the sealing cap 5 is engaged with the flange 6, and the sealing cap 5 is adhered to the inner wall of the aluminum shell 3; the interior of the aluminum shell 3 has several evenly distributed aluminum foils 7, the spaces between the aluminum foils 7 are filled with electrolyte 8, and the inner wall of the aluminum foils 7 is adhered to with electrolytic paper, and the outer surface of the aluminum foils 7 is adhered to with tape 9.

[0033] In this technical solution, when the cover 4 below the aluminum shell 3 is fitted into the mounting groove 2, the protrusion 10 engages with the edge of the cover 4 to achieve quick installation of the capacitor. The cover 4 further seals the sealing cap 5, and the sealing cap 5 seals the aluminum foil 7 and electrolyte 8 inside. The flange 6 achieves the connection sealing performance between the cover 4 and the sealing cap 5 to avoid leakage problems, thereby enabling the lead-out of the pin 11.

[0034] The base 1 has two symmetrically distributed guide grooves 12 at its bottom. The side wall of the base 1 between the two guide grooves 12 has an arc-shaped guide groove 16, and the guide groove 16 is distributed correspondingly to the pin 11. The guide groove 12 has an arc-shaped protrusion 13 inside, and the arc-shaped protrusion 13 is fixedly connected to the bottom of the base 1. The pin 11 has a bent structure and is located inside the guide groove 12. The pin 11 is in close contact with the surface of the arc-shaped protrusion 13.

[0035] In this technical solution, when the aluminum shell 3 is installed, the pin 11 passes through the base 1 and moves into the guide groove 12. When the pin 11 is inserted, it first contacts the guide groove 12, causing the pin 11 to be skewed due to the restriction of the guide groove 16, which facilitates the subsequent bending of the pin 11. After the aluminum shell 3 is installed on the base 1, the pin 11 is bent so that the pin 11 moves from the arc surface 15 of the locking block 14 into the guide groove 12. At this time, the pin 11 is stably limited by the locking block 14.

[0036] The base 1 has several evenly distributed locking blocks 14 fixedly connected to its bottom. The locking blocks 14 are located at the bottom edge of the guide groove 12. The bottom surface of the locking blocks 14 has an arc surface 15, and the locking blocks 14 are in contact with the edge of the pins 11.

[0037] In this technical solution, when the pin 11 is bent and fitted into the guide groove 12, the pin 11 is attached to the surface of the arc-shaped protrusion 13. The pin 11 is placed in the guide groove 12 in an arc shape by the limiting of the locking block 14 and the arc-shaped protrusion 13, so that the pin 11 extending out of the base 1 is at the same horizontal position as the bottom surface of the base 1. This facilitates the subsequent soldering of the pin 11 and avoids the problem that the pin 11 is tilted up and the base 1 cannot be effectively attached to the PCB board, thus ensuring the installation stability of the capacitor.

[0038] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A high-stability surface-mount aluminum electrolytic capacitor, characterized in that, include: The base (1) has a mounting groove (2) for fixing the capacitor in the middle. The capacitor is composed of an aluminum shell (3) and a cover (4). The cover (4) is fixedly connected to the bottom of the aluminum shell (3), and the cover (4) is fitted and snapped into the mounting groove (2). The bottom of the cover (4) is fixedly connected to the pin (11). The bottom of the base (1) has a guide groove (12) for mounting the pin (11), and the pin (11) is fitted into the guide groove (12) and extends to the outside. The bottom of the base (1) located inside the guide groove (12) is provided with a limiting mechanism. The base (1) has a circular mounting groove (2), and the top edge of the base (1) on both sides of the mounting groove (2) has an opening; the top edge of the mounting groove (2) has several evenly distributed protrusions (10), and the protrusions (10) are engaged with the edge of the circular cover (4); the bottom edge of the aluminum shell (3) is fixedly connected with a flange (6), the cover (4) is fixedly connected with a sealing cap (5), the top edge of the sealing cap (5) is engaged with the flange (6), and the sealing cap (5) is attached to the inner wall of the aluminum shell (3); the aluminum shell (3) has several evenly distributed aluminum foils (7) inside, the aluminum foils (7) are filled with electrolyte (8), and the inner wall of the aluminum foils (7) is attached with electrolytic paper, and the outer surface of the aluminum foils (7) is attached with tape (9); the base The base (1) has two symmetrically distributed guide grooves (12) at its bottom. The side wall of the base (1) between the two guide grooves (12) has an arc-shaped guide groove (16) and the guide groove (16) is distributed correspondingly to the pin (11). The guide groove (12) has an arc-shaped protrusion (13) inside, and the arc-shaped protrusion (13) is fixedly connected to the bottom of the base (1). The pin (11) is a bent structure and is located inside the guide groove (12). The pin (11) is in close contact with the surface of the arc-shaped protrusion (13). The bottom of the base (1) is fixedly connected with several evenly distributed locking blocks (14). The locking blocks (14) are located at the bottom edge of the guide groove (12). The bottom surface of the locking block (14) has an arc surface (15) and the locking block (14) is in contact with the edge of the pin (11).

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