Anode leading-out structure of tantalum electrolytic capacitor

Abstract

The utility model relates to the technical field of capacitors, in particular to an anode leading-out structure of a tantalum electrolytic capacitor, which comprises a tantalum capacitor body, and the anode and the cathode of the tantalum capacitor body are detachably connected with pins and are respectively provided with a leading-out mechanism. The side surface of the leading-out mechanism is provided with a fixing mechanism used for limiting and fixing a pin on the leading-out mechanism 3, the leading-out mechanism comprises a fixing plate, the back surface of the fixing plate is fixedly connected with a welding plate fixedly connected with the positive electrode or the negative electrode of the tantalum capacitor body, and two ends of the front surface of the fixing plate are fixedly connected with contact blocks. According to the utility model, the fixing mechanism is separated from the pin at the corresponding position and then is rotated, so that the fixing mechanism is vertically downward, at the moment, the pin can be detached from the positive electrode or the negative electrode of the tantalum capacitor body and replaced by a new pin, and the tantalum capacitor body does not need to be integrally replaced, so that the cost can be saved.

Description

Technical Field

[0001] This utility model relates to the field of capacitor technology, specifically to an anode lead-out structure for a tantalum electrolytic capacitor. Background Technology

[0002] Tantalum electrolytic capacitors, also known as tantalum capacitors, are a type of electrolytic capacitor. Tantalum capacitors use tantalum metal as the dielectric and do not require electrolytes like ordinary electrolytic capacitors, nor do they require aluminum-coated capacitor paper for firing. High-energy hybrid tantalum capacitors have advantages such as ultra-large capacity, high energy density per unit volume, diverse lead-out methods, small size for products of the same specifications, high reliability, long life, ultra-low leakage current, and excellent electrical performance.

[0003] Currently, when using tantalum capacitors, the positive and negative leads are usually soldered to the positive and negative terminals of the tantalum capacitor, respectively, and then the positive and negative leads are soldered to the circuit board. When the tantalum capacitor is soldered to the circuit board, the leads may be damaged due to improper soldering or mechanical stress. Since the soldered leads are difficult to remove from the tantalum capacitor, the tantalum capacitor and leads are usually replaced as a whole. However, tantalum capacitors are more expensive than aluminum capacitors, thus increasing the cost. Utility Model Content

[0004] The purpose of this invention is to provide an anode lead-out structure for a tantalum electrolytic capacitor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A tantalum electrolytic capacitor anode lead-out structure includes a tantalum capacitor body, wherein the positive and negative terminals of the tantalum capacitor body are detachably connected to leads, and both the positive and negative terminals of the tantalum capacitor body are provided with lead-out mechanisms, and the side of the lead-out mechanism is provided with a fixing mechanism for limiting and fixing the leads on the lead-out mechanism.

[0007] The lead-out mechanism includes a fixing plate, on the back of which a welding plate is fixedly connected to the positive or negative electrode of the tantalum capacitor body. Contact blocks are fixedly connected to both ends of the front of the fixing plate, and a connecting block is fixedly connected between the contact block and the welding plate.

[0008] Furthermore, both ends of the pin are fixedly connected to plugs, and both ends of the fixing plate are provided with through holes for plugging into the plugs at corresponding positions.

[0009] Furthermore, the pins, plugs, contact blocks, connecting blocks, and soldering plates are all made of conductive material.

[0010] Furthermore, the fixing mechanism includes a pressing plate, and an elastic element is rotatably connected between the pressing plate and the fixing plate at the corresponding position.

[0011] Furthermore, the elastic element includes a sleeve rotatably connected to a fixed plate at a corresponding position, a sleeve rod slidably sleeved inside the sleeve and fixedly connected to a pressing plate at a corresponding position, and a spring fixedly connected between the sleeve rod and the sleeve at the corresponding position.

[0012] Furthermore, positioning holes are provided through both ends of the side of the pin, and positioning blocks that are fixedly connected to the positioning holes at the corresponding positions are fixedly connected to both ends of the side of the extrusion plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By separating the fixing mechanism from the pin at the corresponding position and then rotating it so that the fixing mechanism is vertically downward, the pin can be removed from the positive or negative terminal of the tantalum capacitor body and replaced with a new pin. There is no need to replace the entire tantalum capacitor body, thus saving costs.

[0015] 2. By prying the sides of the two pins outwards, the two pins are detached from the fixing plates at their corresponding positions. Then, the tantalum capacitor body is removed from between the two pins. At this time, the two pins are still soldered to the circuit board. It is not necessary to remove the pins from the circuit board and then solder them back on every time the circuit board is cleaned for maintenance. Therefore, the tantalum capacitor body can be frequently removed from the circuit board with only one soldering, thus improving the installation efficiency of the tantalum capacitor body in the later stages. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the pins in this utility model;

[0018] Figure 3 This is a front view of the fixing plate in this utility model;

[0019] Figure 4 This is a schematic diagram of the back of the fixing plate in this utility model;

[0020] Figure 5 This is a schematic diagram of the fixing mechanism in this utility model.

[0021] In the diagram: 1. Tantalum capacitor body; 2. Leads; 21. Insertion block; 22. Positioning hole; 3. Lead-out mechanism; 31. Fixing plate; 32. Welding plate; 33. Contact block; 34. Connecting block; 35. Insertion hole; 4. Fixing mechanism; 41. Extrusion plate; 42. Elastic element; 43. Positioning block. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1 - Figure 5 In this embodiment of the present invention, a tantalum electrolytic capacitor anode lead-out structure includes a tantalum capacitor body 1. The positive and negative terminals of the tantalum capacitor body 1 are detachably connected to leads 2. Both the positive and negative terminals of the tantalum capacitor body 1 are provided with lead-out mechanisms 3. The lead-out mechanism 3 is provided with a fixing mechanism 4 on its side for limiting and fixing the leads 2 on the lead-out mechanism 3. The lead-out mechanism 3 includes a fixing plate 31. The back of the fixing plate 31 is fixedly connected to a welding plate 32 that is fixedly connected to the positive or negative terminal of the tantalum capacitor body 1. Both ends of the front of the fixing plate 31 are fixedly connected to contact blocks 33. A connecting block 34 is fixedly connected between the contact blocks 33 and the welding plate 32.

[0024] Specifically, firstly, two welding plates 32 are welded to the positive and negative terminals of the tantalum capacitor body 1 respectively (the welding plates 32 and the method of leading out pins 2 in the prior art are the same), so that the two fixing plates 31 are fixed to both ends of the tantalum capacitor body 1 respectively. Then, the side of pin 2 is tightly contacted with the two contact blocks 33 at the corresponding positions, and the pin 2 is fixed to the fixing plate 31 at the corresponding positions by the fixing mechanism 4. Then, the two pins 2 are welded to the circuit board by welding, thereby completing the installation of the tantalum capacitor body 1. If the pin 2 is damaged due to improper welding or mechanical stress during the welding process (such as severe deformation of pin 2, making it unusable), the fixing mechanism 4 can be separated from the pin 2 at the corresponding position and then rotated so that the fixing mechanism 4 is vertically downward. At this time, the pin 2 can be removed from the positive or negative terminal of the tantalum capacitor body 1 and a new pin 2 can be replaced. It is not necessary to repair the tantalum capacitor body. The entire tantalum capacitor body 1 can be replaced, thus saving costs. Moreover, if the circuit board is difficult to clean due to the obstruction of multiple tantalum capacitor bodies 1, the two fixing mechanisms 4 can be separated from the corresponding pins 2 and rotated to face vertically downwards. Then, the sides of the two pins 2 can be pried outwards (the pins 2 in the tantalum capacitor body 1 usually have a certain degree of flexibility) so that the two pins 2 are separated from the fixing plates 31 at the corresponding positions. At this time, the tantalum capacitor body 1 is separated from the two pins 2. Then, the tantalum capacitor body 1 can be removed from between the two pins 2. At this time, the two pins 2 are still soldered to the circuit board. It is not necessary to remove the pins 2 from the circuit board and then solder them back on every time the circuit board is cleaned. Thus, the tantalum capacitor body 1 can be frequently removed from the circuit board with only one soldering, thereby improving the installation efficiency of the tantalum capacitor body 1 in the later stages.

[0025] Example 1

[0026] like Figure 2 and Figure 3 As shown, in this embodiment, both ends of the side of the pin 2 are fixedly connected to the plug 21, and both ends of the side of the fixing plate 31 are provided with plug holes 35 for plugging into the plug 21 at the corresponding position. The pin 2, plug 21, contact block 33, connecting block 34 and welding plate 32 are all made of conductor material.

[0027] In this embodiment, by inserting the plug 21 into the corresponding socket 35 and then fixing the pin 2 by the fixing mechanism 4, the stability between the pin 2 and the tantalum capacitor body 1 can be increased, and the pin 2 can be more closely connected to the two contact blocks 33 at the corresponding position.

[0028] Example 2

[0029] like Figure 2 and Figure 5As shown, in this embodiment, the fixing mechanism 4 includes a pressing plate 41, and an elastic element 42 is rotatably connected between the pressing plate 41 and the fixing plate 31 at the corresponding position. The elastic element 42 includes a sleeve rotatably connected to the fixing plate 31 at the corresponding position. A sleeve rod fixedly connected to the pressing plate 41 at the corresponding position is slidably sleeved inside the sleeve. A spring is fixedly connected between the sleeve rod and the sleeve at the corresponding position. Positioning holes 22 are provided through both ends of the side of the pin 2. Positioning blocks 43 that are inserted into the positioning holes 22 at the corresponding positions are fixedly connected to both ends of the side of the pressing plate 41.

[0030] In this embodiment, when pin 2 is in close contact with the two contact blocks 33 at the corresponding position, the spring between the sleeve and the sleeve rod is stretched by pulling the extrusion plate 41 outward. Then, the extrusion plate 41 is rotated to a horizontal position, and the positioning block 43 is aligned with the positioning hole 22 at the corresponding position. Then, the extrusion plate 41 is released. At this time, under the action of the spring at the corresponding position, the extrusion plate 41 presses the pin 2 at the corresponding position against the two contact blocks 33, and the positioning block 43 is inserted into the positioning hole 22 at the corresponding position, which can prevent the extrusion plate 41 from rotating and causing the pin 2 to disengage from the two contact blocks 33.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tantalum electrolytic capacitor anode lead structure, comprising a tantalum capacitor body (1), wherein the positive and negative terminals of the tantalum capacitor body (1) are detachably connected to leads (2), characterized in that, The positive and negative terminals of the tantalum capacitor body (1) are provided with lead-out mechanisms (3), and the side of the lead-out mechanism (3) is provided with a fixing mechanism (4) for limiting and fixing the pin (2) on the lead-out mechanism (3); The lead-out mechanism (3) includes a fixing plate (31), and a welding plate (32) that is fixedly connected to the positive or negative electrode of the tantalum capacitor body (1) is fixedly connected to the back of the fixing plate (31). Contact blocks (33) are fixedly connected to both ends of the front of the fixing plate (31), and a connecting block (34) is fixedly connected between the contact block (33) and the welding plate (32).

2. The tantalum electrolytic capacitor anode lead-out structure according to claim 1, characterized in that, Both ends of the pin (2) are fixedly connected to plugs (21), and both ends of the fixed plate (31) are provided with plug holes (35) for plugging into the plugs (21) at the corresponding positions.

3. The tantalum electrolytic capacitor anode lead-out structure according to claim 2, characterized in that, The pin (2), plug (21), contact block (33), connecting block (34) and welding plate (32) are all made of conductor material.

4. The tantalum electrolytic capacitor anode lead-out structure according to claim 3, characterized in that, The fixing mechanism (4) includes a pressing plate (41), and an elastic element (42) is rotatably connected between the pressing plate (41) and the fixing plate (31) at the corresponding position.

5. The tantalum electrolytic capacitor anode lead-out structure according to claim 4, characterized in that, The elastic element (42) includes a sleeve that is rotatably connected to a fixed plate (31) at a corresponding position. A sleeve rod that is fixedly connected to a pressing plate (41) at a corresponding position is slidably sleeved inside the sleeve. A spring is fixedly connected between the sleeve rod and the sleeve at the corresponding position.

6. The anode lead-out structure of the tantalum electrolytic capacitor according to claim 5, characterized in that, The pin (2) has a positioning hole (22) through both ends of its side, and the extrusion plate (41) has a positioning block (43) fixedly connected to the positioning hole (22) at the corresponding position at both ends of its side.

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