Chip tantalum capacitor

Abstract

The utility model belongs to the technical field of tantalum capacitors, and discloses a chip-type tantalum capacitor, which comprises a chip-type tantalum capacitor body, extension assemblies are arranged on two sides of the bottom of the chip-type tantalum capacitor body, an extension structure is arranged at the bottom of the chip-type tantalum capacitor body, and the extension structure is connected with the extension assemblies. The extending assembly comprises a metal sheet, a discharging groove is formed in the metal sheet, and the extending structure comprises a movable block. According to the utility model, the metal sheet and the movable block are arranged, the movable block is pulled, the metal sheet is driven to move outwards through the connecting plate, so that the metal sheet is moved out of the bottom of the resin shell, the connection between the metal sheet and the metal pin is ensured through the elastic sheet, the short circuit is avoided, and meanwhile, a tin bar is placed in the discharging groove, so that the tin bar does not need to be held during welding; and the chip-type tantalum capacitor body can be pressed, so that the chip-type tantalum capacitor body can be conveniently installed, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tantalum capacitors, in particular to a chip-type tantalum capacitor. Background Art

[0002] Tantalum chip capacitors are electrolytic capacitors that are widely used in various electronic products, especially in products with high-density assembly and limited internal space, such as mobile phones and portable printers. They have the characteristics of small size, wide operating temperature range, long life, high insulation resistance, low leakage current, and small capacitance error.

[0003] Currently, when installing chip tantalum capacitors, they are generally installed on the circuit board by means of a welding machine. During the installation process, the chip tantalum capacitor is placed on the required position of the circuit board, and then a tin bar is inserted into one side of the chip tantalum capacitor. The chip tantalum capacitor is welded to the circuit board on one side by a welding gun, and the other side is welded to complete the installation of the chip tantalum capacitor. When welding the chip tantalum capacitor, the operator needs to use both hands, and there is a lack of fixation for the chip tantalum capacitor. In addition, the welding gun needs to contact the pins of the chip tantalum capacitor, which can easily cause the position of the chip tantalum capacitor to shift, resulting in installation position deviation, which requires multiple modifications and makes installation more inconvenient. Therefore, improvements have been made to it. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a chip tantalum capacitor.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a chip tantalum capacitor, a chip tantalum capacitor, comprising a chip tantalum capacitor body, extension components are provided on both sides of the bottom of the chip tantalum capacitor body, an extension structure is provided at the bottom of the chip tantalum capacitor body, and the extension structure is connected to the extension component;

[0006] Wherein, the extension component comprises a metal sheet, and a material discharge trough is provided inside the metal sheet;

[0007] The extension structure includes a movable block, the inner side of the movable block is hinged with a connecting plate located in the inner cavity of the chip tantalum capacitor body, and the other end of the connecting plate is hinged with the outer side of the metal sheet.

[0008] Preferably, the chip tantalum capacitor body includes a resin shell, a tantalum core is arranged inside the resin shell, metal pins are provided on both sides of the tantalum core, both sides of the metal pins extend to the outside of the resin shell, and the bottom of the metal pins is movably connected to the outside of the metal sheet.

[0009] Preferably, a spring is movably provided in the inner cavity of the metal sheet, and the outer side of the spring is connected to the metal pin.

[0010] Preferably, the elastic sheet is elastically connected to the inner wall of the metal sheet.

[0011] Preferably, the extension structure further comprises a card block, the card block is arranged in the inner cavity of the resin housing, a card slot is provided inside the movable block, and the outer side of the card block extends into the inside of the card slot.

[0012] Preferably, the clamping block is elastically connected to the resin housing via a spring.

[0013] Preferably, there are two card slots, and the two card slots are of the same size.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The utility model provides a metal sheet and a movable block, pulls the movable block, drives the metal sheet to move outward through the connecting plate, and makes it move out from the bottom of the resin shell, ensures the connection between the metal sheet and the metal pin through the spring sheet, and prevents a short circuit from occurring. At the same time, a tin block is placed inside the discharge trough, so that there is no need to hold the tin bar during welding, and the chip tantalum capacitor body can be pressed, making it convenient to install the chip tantalum capacitor body and improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the bottom structure of the utility model;

[0019] Figure 4 This is a schematic structural diagram of the connecting plate of the utility model;

[0020] Figure 5 This is a schematic cross-sectional view of the movable block of the utility model;

[0021] Figure 6 for Figure 5 Schematic diagram of the local enlarged structure at A in the middle;

[0022] Figure 7 This is a schematic cross-sectional structural diagram of the metal sheet of the present invention.

[0023] In the figure: 1. Chip tantalum capacitor body; 101. Resin shell; 102. Tantalum core; 103. Metal pin; 2. Extension component; 201. Metal sheet; 202. Spring; 203. Discharge trough; 3. Extension structure; 301. Movable block; 302. Card slot; 303. Connecting plate; 304. Card block; 305. Spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in 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.

[0025] like Figures 1 to 7 As shown, the utility model provides a chip tantalum capacitor, a chip tantalum capacitor, comprising a chip tantalum capacitor body 1, both sides of the bottom of the chip tantalum capacitor body 1 are provided with extension components 2, the bottom of the chip tantalum capacitor body 1 is provided with an extension structure 3, and the extension structure 3 is connected to the extension component 2;

[0026] The extension component 2 includes a metal sheet 201, and a material discharge trough 203 is provided inside the metal sheet 201;

[0027] The extension structure 3 includes a movable block 301 . The inner side of the movable block 301 is hinged with a connecting plate 303 located in the inner cavity of the chip tantalum capacitor body 1 . The other end of the connecting plate 303 is hinged with the outer side of the metal sheet 201 .

[0028] By pulling the movable block 301, the movable block 301 is moved into the inner cavity of the chip tantalum capacitor body 1, and through the hinge between the movable block 301 and the connecting plate 303, the metal sheet 201 is driven to move outward through the connecting plate 303, so that the movable block 301 is moved out from both sides of the bottom of the chip tantalum capacitor body 1, and a tin bar is placed inside the trough 203 through the discharge groove 203 opened inside the metal sheet 201, so that the tin bar does not need to be manually held, and the chip tantalum capacitor body 1 can be pressed by tweezers to fix it on the circuit board for welding, thereby preventing position displacement during welding installation and improving installation efficiency.

[0029] Among them, the chip tantalum capacitor body 1 includes a resin shell 101, a tantalum core 102 is arranged inside the resin shell 101, and metal pins 103 are arranged on both sides of the tantalum core 102. The two sides of the metal pins 103 extend to the outside of the resin shell 101, and the bottom of the metal pins 103 is movably connected to the outside of the metal sheet 201.

[0030] During the charging process of the chip tantalum capacitor body 1, an external voltage is applied to the two metal pins 103 of the chip tantalum capacitor body 1, causing the ions in the tantalum core 102 to be adsorbed on the oxide film on the surface of the tantalum film under electrochemical reaction, forming an electrochemical double layer for storing energy.

[0031] The inner cavity of the metal sheet 201 is movably provided with a spring piece 202 , and the outer side of the spring piece 202 is connected to the metal pin 103 .

[0032] When the metal sheet 201 moves outward from the bottom of the chip tantalum capacitor body 1 , the spring piece 202 moves inside the metal sheet 201 , so that the spring piece 202 maintains the connection between the metal sheets 201 to prevent short circuit.

[0033] The spring piece 202 is elastically connected to the inner wall of the metal sheet 201 .

[0034] The elastic force of the spring 202 keeps the spring 202 in contact with the inner wall of the metal sheet 201 , thereby ensuring a stable connection between the chip tantalum capacitor and the circuit board and preventing a short circuit.

[0035] The extension structure 3 further includes a clamping block 304 , which is disposed in the inner cavity of the resin housing 101 . A clamping slot 302 is defined inside the movable block 301 , and the outer side of the clamping block 304 extends into the inner portion of the clamping slot 302 .

[0036] By providing the clamping block 304 , the movable block 301 is conveniently driven to be clamped to the bottom of the resin housing 101 , thereby preventing the metal sheet 201 from accidentally moving and causing damage to the extended metal sheet 201 during transportation.

[0037] The clamping block 304 is elastically connected to the resin housing 101 via a spring 305 .

[0038] The elastic force of the spring 305 applies a downward pressure to the clamping block 304, thereby clamping the movable block 301 to prevent positional displacement.

[0039] There are two card slots 302 , and the two card slots 302 are of the same size.

[0040] When the operator pulls the movable block 301, the movable block 301 squeezes the clamping block 304 and moves the clamping block 304 out of the first clamping slot 302. Then, when the second clamping slot 302 on the movable block 301 moves to the outside of the clamping block 304, the elastic force of the spring 305 drives the clamping block 304 to be clamped into the second clamping slot 302, thereby clamping the movable block 301. At the same time, the movement of the movable block 301 drives the metal sheet 201 to move outward, making it convenient to position the tin block through the discharge trough 203, so that the chip tantalum capacitor body 1 can be fixed, making it convenient to weld the chip tantalum capacitor body 1.

[0041] The working principle and use process of this utility model:

[0042] First, when the operator is installing the chip tantalum capacitor body 1, he pulls the movable block 301 to move the movable block 301 toward the inner cavity of the resin shell 101. At the same time, the clamping block 304 moves out from the inside of the clamping slot 302 to release the clamping connection of the movable block 301. The metal sheet 201 is driven to expand outward through the hinge between the connecting plate 303 and the metal sheet 201. As the metal sheet 201 continues to move outward, the clamping block 304 moves to the outside of the second clamping slot 302. The spring 305 acts to clamp the clamping block 304 into the inside of the clamping slot 302, and the extended metal sheet 201 is clamped. The sheet 201 is fixed, and as the metal sheet 201 continues to move outward, the elastic force of the spring 202 ensures that the metal sheet 201 is always in contact with the metal pin 103 to prevent a short circuit. Then, a tin block is placed inside the discharge trough 203, so that there is no need to hold the tin bar for welding, and the free hand is used to press the chip tantalum capacitor body 1, so that the chip tantalum capacitor body 1 can be fixed during welding, thereby preventing the chip tantalum capacitor body 1 from being shifted in position due to the shaking of the welding gun during welding, and facilitating the operator's welding of the chip tantalum capacitor body 1.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chip tantalum capacitor, comprising a chip tantalum capacitor body (1), characterized in that: Extension components (2) are provided on both sides of the bottom of the chip tantalum capacitor body (1), and an extension structure (3) is provided at the bottom of the chip tantalum capacitor body (1), and the extension structure (3) is connected to the extension component (2); The extension component (2) comprises a metal sheet (201), and a material discharge trough (203) is provided inside the metal sheet (201); The extension structure (3) includes a movable block (301), the inner side of the movable block (301) is hinged with a connecting plate (303) located in the inner cavity of the chip tantalum capacitor body (1), and the other end of the connecting plate (303) is hinged to the outer side of the metal sheet (201).

2. The chip tantalum capacitor according to claim 1, characterized in that: The chip-type tantalum capacitor body (1) comprises a resin shell (101), a tantalum core (102) is provided inside the resin shell (101), metal pins (103) are provided on both sides of the tantalum core (102), both sides of the metal pins (103) extend to the outside of the resin shell (101), and the bottom of the metal pins (103) is movably connected to the outside of the metal sheet (201).

3. The chip tantalum capacitor according to claim 1, characterized in that: A spring (202) is movably provided in the inner cavity of the metal sheet (201), and the outer side of the spring (202) is connected to the metal pin (103).

4. The chip tantalum capacitor according to claim 3, characterized in that: The spring sheet (202) is elastically connected to the inner wall of the metal sheet (201).

5. The chip tantalum capacitor according to claim 2, characterized in that: The extension structure (3) further comprises a card block (304), the card block (304) being arranged in the inner cavity of the resin housing (101), a card slot (302) being provided inside the movable block (301), and the outer side of the card block (304) extending into the inner portion of the card slot (302).

6. The chip tantalum capacitor according to claim 5, characterized in that: The clamping block (304) is elastically connected to the resin housing (101) via a spring (305).

7. The chip tantalum capacitor according to claim 5, characterized in that: There are two card slots (302), and the two card slots (302) are of the same size.

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