High-vibration-magnitude and high-energy hybrid tantalum capacitor

Abstract

The utility model discloses a high-vibration-magnitude and high-energy hybrid tantalum capacitor, which comprises a tantalum shell, a plurality of cathode plates are arranged in the tantalum shell and are arranged in a layered manner along the vertical direction of the tantalum shell, an anode block is arranged between every two adjacent cathode plates, an insulating lower gasket is laid on the cathode plate on the top layer, and an insulating lower gasket is laid on the anode plate on the bottom layer. An adjusting gasket is arranged at the upper end of the insulating lower gasket, and positive and negative electrode insulating layers are arranged between the rest of the cathode plates and the adjacent anode blocks; a cover plate is further arranged at the opening end of the tantalum shell, a positive electrode lead is arranged on the cover plate and electrically connected with the positive electrode block, and meanwhile a negative electrode lead is arranged on the cover plate; the internal assembly part and the shell are kept in a stable and fixed state, a short-circuit fault of the tantalum capacitor is prevented, and good electrical performance of the capacitor is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of capacitor vibration resistance testing devices, and in particular to a high-vibration-level high-energy hybrid tantalum capacitor. Background Technology

[0002] Existing non-solid electrolyte high-energy hybrid tantalum capacitor structures generally include a tantalum shell, inside which are insulating strips, anode blocks, cathode plates, positive and negative electrode insulating layers, lower insulating pads, adjusting pads, upper insulating pads, and insulating rings. The anode block (tantalum core) generally serves as the anode of the tantalum capacitor, while the tantalum shell and cathode plates serve as the cathodes of the tantalum capacitor.

[0003] Because capacitors need to operate in a high-vibration environment, the anode block and cathode plate inside existing capacitors are prone to displacement, and may even be damaged during shaking, resulting in faulty electrical parameters and making it impossible for the capacitor to maintain a stable working state. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a high-vibration-level high-energy hybrid tantalum capacitor.

[0005] This utility model is achieved through the following technical solution.

[0006] This utility model provides a high-vibration-level high-energy hybrid tantalum capacitor, including a tantalum shell, inside which are arranged multiple cathode plates. The multiple cathode plates are arranged in layers along the vertical direction of the tantalum shell. An anode block is arranged between each pair of adjacent cathode plates. An insulating lower pad is also laid on the top cathode plate, and an adjusting shim is arranged on the upper end of the insulating lower pad. Positive and negative insulating layers are arranged between the remaining cathode plates and the adjacent anode blocks. A cover plate is also provided at the open end of the tantalum shell. A positive lead is arranged on the cover plate and is electrically connected to the anode block. At the same time, a negative lead is arranged on the cover plate.

[0007] Preferably, an insulating ring is provided at the upper end of the adjusting shim, and the insulating ring is placed between the cover plate and the adjusting shim.

[0008] Preferably, the bottom of the tantalum shell is provided with a lower bowl fork, the bottom of which is positioned between the bottom of the tantalum shell and the bottom cathode plate.

[0009] Preferably, the lower bowl fork is composed of multiple limiting arc plates and a base plate, with the multiple limiting arc plates being evenly distributed along the circumference of the base plate.

[0010] Preferably, a groove is formed in the center of the base plate.

[0011] Preferably, the plurality of cathode plates are sequentially divided into a first cathode plate, a second cathode plate, a third cathode plate, and a fourth cathode plate from bottom to top in the tantalum shell, and the plurality of anode blocks are sequentially divided into a first anode block, a second anode block, and a third anode block from bottom to top in the tantalum shell, and the positive and negative electrode insulating layer between the first anode block and the second cathode plate includes two positive and negative electrode insulating layers, and the plurality of positive and negative electrode insulating layers are sequentially divided into a first insulating layer, a second insulating layer, a third insulating layer, and a fourth insulating layer from bottom to top in the tantalum shell.

[0012] Preferably, the area of ​​the second insulating layer is equal to the area of ​​the bottom surface of the anode block.

[0013] Preferably, the areas of the first insulating layer, the third insulating layer, and the fourth insulating layer are all larger than the area of ​​the bottom surface of the anode block.

[0014] Preferably, the tantalum wire on the anode block is connected in parallel to the tantalum rod, the tantalum rod is connected to the positive electrode lead, and an insulating sleeve is fitted on the tantalum rod.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. By setting multiple layers of positive and negative electrode insulating layers, insulation between the anode block and the cathode plate is achieved. At the same time, due to the large area of ​​the positive and negative electrode insulating layers, the sides of the anode block are fully wrapped, preventing damage to the oxide film of the anode block, and further increasing the fixation between the anode block and the side of the outer shell.

[0017] 2. By setting the lower cup fork, when the internal assembly components of the capacitor are displaced in a vibrating application environment, the bottom of the lower cup fork forms a barrier between the first cathode plate and the bottom of the outer casing, preventing the ruthenium layer of the first cathode plate from falling off. At the same time, the limiting arc plate on the lower cup fork provides insulation to the anode block and the side of the outer casing.

[0018] 3. The anode block, lower cup fork, positive and negative electrode insulation layers, and insulation ring are tightly clamped together, and these three assembly components will not come loose. This avoids the tantalum core from contacting the inner wall of the outer shell, resulting in higher insulation reliability. This allows the tantalum capacitor to maintain good electrical performance in applications with higher vibration levels, and keeps the internal assembly components and the outer shell in a stable and fixed state, preventing short circuit faults in the tantalum capacitor and ensuring good electrical performance of the capacitor. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the lower bowl fork of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the insulating ring of this utility model;

[0022] In the diagram: 1-Tantalum outer shell; 2-Lower bowl fork; 201-Base plate; 202-Limiting arc plate; 3-First cathode plate; 4-First insulating layer; 5-First anode block; 6-Second insulating layer; 7-Second cathode plate; 8-Third insulating layer; 9-Second anode block; 10-Third cathode plate; 11-Fourth insulating layer; 12-Third anode block; 13-Fourth cathode plate; 14-Insulating sleeve; 15-Insulating lower gasket; 16-Adjusting shim; 17-Insulating ring; 18-Cover plate; 19-Positive lead; 20-Negative lead. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] In this embodiment, refer to Figure 1 and Figure 2 The device includes a tantalum shell 1, with a lower cup fork 2 at the bottom of the tantalum shell 1. The lower cup fork 2 is composed of multiple limiting arc plates 202 and a base plate 201. Specifically, there are four limiting arc plates 202, which are evenly distributed along the circumference of the base plate 201. The limiting arc plates 202 are fixedly connected to the base plate 201. A groove is provided in the center of the base plate 201, which has a certain heat dissipation function.

[0026] In this embodiment, refer to Figure 1Multiple cathode plates are mounted on the base plate 201, arranged in layers along the vertical direction of the tantalum shell 1. An anode block is placed between each adjacent cathode plate. An insulating lower gasket 15 is also laid on the top cathode plate. Positive and negative electrode insulating layers are placed between the remaining cathode plates and the adjacent anode blocks. The cathode plates are divided into a first cathode plate 3, a second cathode plate 7, a third cathode plate 10, and a fourth cathode plate 13 from bottom to top in the tantalum shell 1. The anode blocks are divided into a first anode block 5, a second cathode plate 7, a third cathode plate 10, and a fourth cathode plate 13 from bottom to top in the tantalum shell 1. The second anode block 9 and the third anode block 12 ensure that multiple cathode plates and multiple anode blocks are all on the lower bowl fork 2. The multiple cathode plates and multiple anode blocks are not in direct contact with the inner sidewall of the tantalum shell 1 by the four limiting arc plates 202. The positive and negative electrode insulating layer between the first anode block 5 and the second cathode plate 7 includes two positive and negative electrode insulating layers. The multiple positive and negative electrode insulating layers are divided into the first insulating layer 4, the second insulating layer 6, the third insulating layer 8 and the fourth insulating layer 11 from bottom to top in the tantalum shell 1, so as to achieve uniform insulation between the cathode plate and the anode block.

[0027] In this embodiment, refer to Figure 1 The area of ​​the second insulating layer 6 is equal to the area of ​​the bottom surface of the anode block, and the insulating layer between the cathode plate and the anode block is thickened; the areas of the first insulating layer 4, the third insulating layer 8 and the fourth insulating layer 11 are all greater than the area of ​​the bottom surface of the anode block.

[0028] In this embodiment, refer to Figure 1 and Figure 3 An adjusting shim 16 is provided at the upper end of the insulating lower shim 15; a cover plate 18 is also provided at the open end of the tantalum shell 1, and a positive electrode lead 19 is provided on the cover plate 18. The tantalum wire on the anode block is connected in parallel to the tantalum rod, and the tantalum rod is connected to the positive electrode lead 19. An insulating sleeve 14 is provided on the tantalum rod to ensure the insulation of the circuit connection. At the same time, a negative electrode lead 20 is provided on the cover plate 18. An insulating ring 17 is provided at the upper end of the adjusting shim 16. The insulating ring 17 is designed as a closed circle and has a receiving groove in it. The insulating ring 17 is placed between the cover plate 18 and the adjusting shim 16, so that the insulating ring 17 becomes a channel for the cover plate 18 to inject electrolyte into the product.

[0029] The working principle of this embodiment is as follows: When the internal assembly components are displaced in a vibration environment, the bottom plate 201 of the lower cup fork 2 forms a barrier between the first cathode plate 3 and the bottom of the tantalum shell 1, preventing the ruthenium layer of the cathode plate from falling off. At the same time, the limiting arc plate 202 of the lower cup fork 2 provides insulation to the anode block and the side of the tantalum shell 1. Three positive and negative electrode insulating layers with an area larger than the anode block are used to fully enclose the side and bottom of the anode block, preventing damage to the oxide film of the anode block. This also increases the stability of the anode block and the inner side of the tantalum shell 1. The longitudinal fixing area is also increased by the insulating ring 17. The lower cup fork 2, the positive and negative electrode insulating layers, and the insulating ring 17 together tightly clamp the cathode plate and the anode block together, so that the internal assembly components and the tantalum shell 1 maintain a stable state, preventing the anode block from contacting the inner wall of the tantalum shell 1, avoiding short circuit faults in the tantalum capacitor, and enabling the tantalum capacitor to maintain good electrical performance in higher vibration level application environments.

[0030] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A high-vibration-level high-energy hybrid tantalum capacitor characterized by: The application relates to a tantalum shell (1) provided with a plurality of cathode sheets arranged in layers along the vertical direction of the tantalum shell (1), an anode block arranged between any two adjacent cathode sheets, an insulating lower gasket (15) arranged on the top-layer cathode sheet, an adjusting gasket (16) arranged at the upper end of the insulating lower gasket (15), an anode-insulating layer arranged between the remaining cathode sheets and the adjacent anode blocks, a cover plate (18) arranged at the opening end of the tantalum shell (1), a positive electrode lead (19) arranged on the cover plate (18) and electrically connected with the anode block, and a negative electrode lead (20) arranged on the cover plate (18).

2. A high vibration level high energy mixed tantalum capacitor as defined in claim 1, wherein: The adjusting gasket (16) is provided with an insulating ring (17) arranged between the cover plate (18) and the adjusting gasket (16).

3. A high vibration level high energy mixed tantalum capacitor as defined in claim 1 wherein: the tantalum powder is a mixture of 90% of the first tantalum powder and 10% of the second tantalum powder. The bottom of the tantalum shell (1) is provided with a lower bowl fork (2) arranged between the bottom of the tantalum shell (1) and the bottom-layer cathode sheet.

4. A high vibration level high energy mixed tantalum capacitor as defined in claim 3 wherein: the tantalum powder is a mixture of 90% of the first tantalum powder and 10% of the second tantalum powder. The lower bowl fork (2) is composed of a plurality of limiting arc-shaped plates (202) and a bottom plate (201), and the plurality of limiting arc-shaped plates (202) are arranged at equal intervals along the circumference of the bottom plate (201).

5. A high vibration level high energy mixed tantalum capacitor as defined in claim 4 wherein: the tantalum powder is a mixture of 90% of the first tantalum powder and 10% of the second tantalum powder. The center of the bottom plate (201) is provided with a groove.

6. A high vibration level high energy mixed tantalum capacitor as defined in claim 1 wherein: the tantalum powder is a mixture of 90% of the first tantalum powder and 10% of the second tantalum powder. The plurality of cathode sheets in the tantalum shell (1) are sequentially divided into a first cathode sheet (3), a second cathode sheet (7), a third cathode sheet (10) and a fourth cathode sheet (13) from bottom to top, the plurality of anode blocks in the tantalum shell (1) are sequentially divided into a first anode block (5), a second anode block (9) and a third anode block (12) from bottom to top, the anode-insulating layer between the first anode block (5) and the second cathode sheet (7) comprises two anode-insulating layers, and the plurality of anode-insulating layers in the tantalum shell (1) are sequentially divided into a first insulating layer (4), a second insulating layer (6), a third insulating layer (8) and a fourth insulating layer (11) from bottom to top.

7. A high vibration level high energy mixed tantalum capacitor as defined in claim 6 wherein: the tantalum powder is a mixture of 90% of the first tantalum powder and 10% of the second tantalum powder. The area of the second insulating layer (6) is equal to the area of the bottom surface of the anode block.

8. A high vibration level high energy mixed tantalum capacitor as defined in claim 6 wherein: the tantalum powder is a mixture of 90% of the first tantalum powder and 10% of the second tantalum powder. The areas of the first insulating layer (4), the third insulating layer (8) and the fourth insulating layer (11) are all greater than the area of the bottom surface of the anode block.

9. A high vibration level high energy mixed tantalum capacitor as defined in claim 1 wherein: the tantalum powder is a mixture of 90% of the first tantalum powder and 10% of the second tantalum powder. The tantalum wires on the anode block are connected in parallel on a tantalum rod, the tantalum rod is connected with the positive electrode lead (19), and an insulating sleeve (14) is arranged on the tantalum rod.

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