Lead assembly structure of solid electrolyte capacitor
By using the compression assembly and spring structure in the lead assembly of the capacitor, the problem of poor lead contact is solved, and the stability and normal operation of the capacitor are achieved.
Patent Information
- Application Number
- CN202421653958.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The leads of the capacitor may have poor contact during installation, resulting in an increase in resistance and affecting normal use.
The compression assembly structure is adopted, including a fixing sleeve, a movable rod, a press plate and a spring. The press plate is pressed with the wire core and the connecting piece through the spring force to prevent poor contact; at the same time, the lead terminal is closely connected to the wire core through the elastic force of the second spring to ensure full contact.
It improves the working stability of the capacitor, prevents the resistance from increasing, ensures the normal operation of the capacitor, and reduces the impact of external shock on the capacitor.
Smart Images
Figure CN223140587U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of capacitors, and particularly to the lead assembly structure of solid electrolyte capacitors. Background Art
[0002] Electrolytic capacitors are common electronic components mainly used for storing and releasing electrical energy, and are widely used in fields such as power supply filtering, signal coupling, and energy storage. The lead structure of electrolytic capacitors mainly includes an anode lead and a cathode lead, which are respectively connected to the anode and cathode of the capacitor and play a role in transmitting electrical energy. The lead structure has an important impact on aspects such as the connection stability, conductivity, and safety of the capacitor.
[0003] However, in the process of implementing related technical solutions, it is found that there are at least the following technical problems: When installing the leads of the capacitor, one end extending into the inner part of the capacitor can is generally welded to the foil connected to the anode and cathode, and the other end is connected to an external wire through a lead terminal. During installation, there may be a situation where the leads are in poor contact, resulting in a large resistance, which affects the normal use of the capacitor. Utility Model Content
[0004] This application solves the problem of poor contact during the installation of leads in the prior art by providing a lead assembly structure for solid electrolyte capacitors, and realizes the effect of pressing and limiting the leads.
[0005] This application provides a lead assembly structure for solid electrolyte capacitors, including a can body. Both sides of the top of the can body are provided with wire cores. A rubber cover is arranged at the top inside the can body. Both sides of the top of the rubber cover are provided with connecting pieces. One end of the wire core is arranged on the connecting piece. A pressing assembly is arranged at the top inside the can body. The pressing assembly includes: a fixed sleeve arranged at the top inside the can body; a movable rod inserted and connected to the bottom of the fixed sleeve; a pressing plate arranged at the bottom of the movable rod, and the bottom of the pressing plate is in contact connection with one end of the wire core.
[0006] Further, a first spring is sleeved on the outer side of the movable rod, and both ends of the first spring are fixedly connected to the fixed sleeve and the pressing plate respectively.
[0007] Further, lead assemblies are arranged on both sides of the top of the can body. The lead assembly includes: a fixed seat fixedly arranged on the outer side of the top end of the wire core; a through groove opened in the middle of the fixed seat, and the top end of the wire core extends into the inside of the through groove; a lead terminal arranged on the top of the through groove, and the lead terminal is in contact connection with the wire core.
[0008] Further, blocks are arranged on both sides of the bottom of the fixed seat, and two pairs of card slots are opened on the top of the can body, and the blocks are clamped inside the card slots.
[0009] Further, movable grooves are provided on both sides of the through groove, movable blocks are fixedly arranged on both sides of the lead terminal, the two movable blocks are respectively slidably connected to the interiors of the two movable grooves, a second spring is arranged inside the two movable grooves, and two ends of the second spring are fixedly connected to one side of the top of the movable block and the inner wall of the movable groove.
[0010] The technical solution provided by this application has at least the following technical effects or advantages:
[0011] The elastic force of the first spring drives the pressing plate to press the wire core and the connecting piece, preventing the phenomenon of increased resistance caused by poor contact between the wire core and the connecting piece. The elastic force of the second spring makes the lead terminal tend to move downward and closely adhere to the top end of the wire core, preventing poor contact between the wire core and the lead terminal and improving the stability of the capacitor during operation. Description of the Drawings
[0012] Figure 1 It is a schematic diagram of the overall structure of the lead assembly structure in the embodiment of this application;
[0013] Figure 2 It is a schematic diagram of the structure of the pressing assembly in the embodiment of this application;
[0014] Figure 3 It is a schematic sectional view of the lead assembly in the embodiment of this application;
[0015] In the figure: 10, can body; 20, wire core; 30, rubber cover; 40, pressing assembly; 50, lead assembly; 60, connecting piece; 41, fixed sleeve; 42, movable rod; 43, first spring; 44, pressing plate; 51, fixed seat; 52, through groove; 53, lead terminal; 54, clamping block; 55, movable groove; 56, movable block; 57, second spring. Detailed Embodiment
[0016] The embodiment of this application discloses a lead assembly structure of a solid electrolyte capacitor. Through the elastic forces of the first spring 43 and the second spring 57, both ends of the wire core 20 are in full contact with the connecting piece 60 and the lead terminal 53, preventing the situation of increased resistance caused by poor contact and improving the stability of the capacitor during use.
[0017] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments.
[0018] Please refer to Figure 1 and Figure 2, this embodiment provides a lead assembly structure for a solid electrolyte capacitor, including a can body 10. Core wires 20 are provided on both sides of the top of the can body 10. A rubber cover 30 is provided at the top inside the can body 10. Positive and negative foil sheets and electrolytic paper are provided at the bottom of the rubber cover 30. Connection pieces 60 are provided on both sides of the top of the rubber cover 30. The bottom ends of the two connection pieces 60 are respectively arranged on the positive and negative foil sheets. One end of the core wire 20 is arranged on the connection piece 60, and the core wire 20 is welded to the connection piece 60. The core wire 20 is connected to the positive and negative foil sheets through the connection piece 60. A pressing assembly 40 is provided at the top inside the can body 10. The pressing assembly 40 includes a fixed sleeve 41, a movable rod 42, a first spring 43, and a pressing plate 44. The fixed sleeve 41 is arranged at the top inside the can body 10. The movable rod 42 is inserted and connected to the bottom of the fixed sleeve 41. The pressing plate 44 is arranged at the bottom of the movable rod 42, and the bottom of the pressing plate 44 is in contact connection with one end of the core wire 20. The fixed sleeve 41, the movable rod 42, and the pressing plate 44 are sleeved on the outside of the core wire 20. The first spring 43 is sleeved on the outside of the movable rod 42. The two ends of the first spring 43 are respectively fixedly connected to the fixed sleeve 41 and the pressing plate 44. Due to the elastic force of the first spring 43, the pressing plate 44 has a tendency to move downward, so that the pressing plate 44 can press tightly on the core wire 20. The core wire 20 is squeezed by the pressing plate 44 and is in close contact with the connection piece 60, reducing the gap between the core wire 20 and the connection piece 60, preventing the increase in resistance caused by poor contact between the core wire 20 and the connection piece 60, and enabling the capacitor to work normally. The first spring 43 can also play a role in buffering and shock absorption when the capacitor is subjected to external impacts, improving the stability of the capacitor.
[0019] Please refer to Figure 1 , Figure 2 and Figure 3 , lead assemblies 50 are provided on both sides of the top of the can body 10. The lead assembly 50 includes a fixed seat 51, a through groove 52, a lead terminal 53, a clamping block 54, a movable groove 55, a movable block 56, and a second spring 57. The fixed seat 51 is fixedly arranged on the outside of the top end of the core wire 20. The through groove 52 is opened in the middle of the fixed seat 51, and the top end of the core wire 20 extends into the inside of the through groove 52. The lead terminal 53 is arranged on the top of the through groove 52, and the lead terminal 53 is in contact connection with the core wire 20. Two clamping blocks 54 are arranged on both sides of the bottom of the fixed seat 51. Two pairs of clamping grooves are opened on the top of the can body 10. The clamping blocks 54 are clamped inside the clamping grooves. The fixed seat 51 is welded to the can body 10. The clamping blocks 54 extend into the inside of the clamping grooves to position the position of the fixed seat 51, preventing the position of the lead terminal 53 from shifting, so that the top end of the core wire 20 can extend into the inside of the through groove 52 and be in contact with the lead terminal 53, ensuring that the lead terminal 53 can be normally connected to an external wire.
[0020] Please refer to Figure 1 , Figure 2 and Figure 3, two movable slots 55 are opened on both sides of the through slot 52, two movable blocks 56 are fixedly arranged on both sides of the lead terminal 53, the two movable blocks 56 are respectively slidably connected to the inside of the two movable slots 55, a second spring 57 is arranged inside the movable slot 55, and both ends of the second spring 57 are fixedly connected to one side of the top of the movable block 56 and the inner wall of the movable slot 55. Through the elastic force of the second spring 57 in the compressed state on the top of the movable block 56, the movable block 56 has a tendency to move downward against the lead terminal 53, so that the lead terminal 53 is in close contact with the wire core 20, preventing the wire core 20 from separating from the lead terminal 53 and causing an increase in resistance, so that the capacitor can be used normally.
[0021] The functional principle of this application can be elaborated through the following operation methods:
[0022] During use, align the two clamping blocks 54 at the bottom of the fixing seat 51 with the card slots on the can body 10, so that the clamping blocks 54 are snapped into the card slots, so that the fixing seat 51 is fixed on the can body 10. The wire core 20 extending out of the top of the can body 10 extends into the through slot 52 inside the fixing seat 51 and contacts the lead terminal 53, pushing up the lead terminal 53, so that the lead terminal 53 drives the movable block 56 inside the movable slot 55 to move upward. The second spring 57 on the top of the movable block 56 is compressed. The elastic force of the second spring 57 can make the movable block 56 and the lead terminal 53 have a tendency to move downward, so that the lead terminal 53 can always be in close contact with the wire core 20, ensuring full contact between the top end of the lead terminal 53 and the wire core 20, and preventing the occurrence of poor contact. The bottom end of the wire core 20 is welded to the connecting piece 60, and is connected to the positive and negative foil through the connecting piece 60. The elastic force of the first spring 43 in the compressed state on the outside of the movable rod 42 can make the pressing plate 44 have a tendency to move downward, so that the pressing plate 44 can press tightly on the connection between the wire core 20 and the connecting piece 60, so that the wire core 20 is in close contact with the connecting piece 60, preventing poor contact between the wire core 20 and the connecting piece 60 from causing an increase in resistance, so that the capacitor can work normally. The elastic force of the first spring 43 can also reduce the impact force on the rubber cover 30 and the bottom foil, improving the stability of the capacitor.
[0023] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these changes and variations.
[0024] The above-mentioned is only the preferred specific implementation manner of the embodiments of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application, according to the technical solution and its concept of this application, makes equivalent substitutions or changes, and should be covered by the protection scope of this application.
Claims
1. The lead assembly structure of a solid electrolyte capacitor, comprising a can body (10), wire cores (20) are arranged on both sides of the top of the can body (10), and a rubber cover (30) is arranged at the top inside the can body (10), characterized in that, On both sides of the top of the rubber cover (30), connection pieces (60) are provided. One end of the wire core (20) is arranged on the connection piece (60). At the top inside the can body (10), a pressing component (40) is provided. The pressing component (40) includes: A fixed sleeve (41), arranged at the top inside the can body (10); A movable rod (42), inserted and connected to the bottom of the fixed sleeve (41); A pressing plate (44), arranged at the bottom of the movable rod (42), and the bottom of the pressing plate (44) is in contact connection with one end of the wire core (20).
2. The lead assembly structure of the solid electrolyte capacitor according to claim 1, characterized in that, A first spring (43) is sleeved on the outer side of the movable rod (42), and both ends of the first spring (43) are fixedly connected to the fixed sleeve (41) and the pressing plate (44) respectively.
3. The lead assembly structure of the solid electrolyte capacitor as described in claim 1, characterized in that, On both sides of the top of the can body (10), lead wire components (50) are provided. The lead wire components (50) include: A fixed seat (51), fixedly arranged on the outer side of the top end of the wire core (20); A through groove (52), opened in the middle of the fixed seat (51), and the top end of the wire core (20) extends into the inside of the through groove (52); A lead wire terminal (53), arranged on the top of the through groove (52), and the lead wire terminal (53) is in contact connection with the wire core (20).
4. The lead assembly structure of the solid electrolyte capacitor according to claim 3, characterized in that On both sides of the bottom of the fixed seat (51), clamping blocks (54) are provided. On the top of the can body (10), two pairs of clamping grooves are opened, and the clamping blocks (54) are clamped inside the clamping grooves.
5. The lead assembly structure of the solid electrolyte capacitor according to claim 3, characterized in that, On both sides of the through groove (52), movable grooves (55) are opened. On both sides of the lead wire terminal (53), movable blocks (56) are fixedly arranged. The two movable blocks (56) are respectively slidably connected inside the two movable grooves (55). Inside the two movable grooves (55), a second spring (57) is provided. Both ends of the second spring (57) are fixedly connected to one side of the top of the movable block (56) and the inner wall of the movable groove (55).