CN212750626U

CN212750626U - Lead-out electrode mounting structure and electrolytic capacitor having the same

Info

Publication number: CN212750626U
Application number: CN202021786990.3U
Authority: CN
Inventors: 燕勇
Original assignee: Dazhou Jinlianfu Electronic Technology Co ltd
Current assignee: Dazhou Jinlianfu Electronic Technology Co ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-03-19
Anticipated expiration: 2030-08-25

Abstract

The utility model provides a leading-out electrode mounting structure and an electrolytic capacitor with the same, wherein the mounting structure comprises a conductive rod and a screw connecting piece, the conductive rod is arranged in a rubber sealing layer in a penetrating way, one end of the conductive rod is welded with a conductive foil strip, the other end of the conductive rod is provided with a threaded connecting part, and the threaded connecting part is detachably connected with the screw connecting piece through threads; the wire/block is characterized by further comprising a wire/block, one end of the wire/block is matched, connected and fixed with the screw connector through the threaded connecting part, and the other end of the wire/block is used for being connected with a circuit board. The capacitor comprises a shell with an opening at one end, a core arranged in the shell and a rubber sealing layer arranged at the opening end of the shell; and the core extends out of the anode and cathode guide foil strips towards the opening end of the shell, and the anode and cathode guide foil strips are respectively connected with the extraction electrode mounting structure. The screw connecting piece and the lead/block of the structure can be detached and replaced, and the lead/block can be arranged according to requirements, so that the electrolytic capacitor with the structure has strong adaptability and prolonged service life.

Description

Lead-out electrode mounting structure and electrolytic capacitor having the same

Technical Field

The utility model belongs to the technical field of the condenser, concretely relates to extraction electrode mounting structure and have electrolytic capacitor of this structure.

Background

Electrolytic capacitors, such as aluminum electrolytic capacitors, generally have metallized films of both electrodes respectively attached to electrolytic paper, and are wound into a roll-like core at intervals along with the electrolytic paper, the core being immersed in an electrolyte; and electrode wires are respectively led out of the two electrode metallized films by welding points, the other ends of the electrode wires are connected with soldering lugs, and the soldering lugs and the bonding wires form leading-out electrodes of the capacitor. The capacitor is connected to different circuit boards in the using process, and due to the difference of connection structures, when the capacitor with the structure is connected and installed, a conducting strip (soldering lug) of an extraction electrode is required to be bent to adapt to the connection structure; however, the conductive sheet is often damaged during bending operation or use, and the conductive sheet is fixedly connected with the capacitor, so that the capacitor cannot be reused due to the damage of the conductive sheet, and the service life of the capacitor is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a leading-out electrode mounting structure and an electrolytic capacitor with the same aiming at the defects in the prior art, the structure is provided with a conductive rod and a screw connecting piece which are matched, the conductive rod and the screw connecting piece are connected through the screw connecting piece and the conductive rod in a threaded manner, the conductive rod and the screw connecting piece are detachably connected and fixed with a wire/block, and then the capacitor is connected to a circuit board through the wire/block; the screw connecting piece and the lead/block of the structure can be replaced, and the lead/block can be arranged according to the requirement, so that the electrolytic capacitor with the structure has strong adaptability and long service life.

In order to achieve the above object, the utility model adopts the following technical scheme:

the leading-out electrode mounting structure is suitable for mounting electrodes of a capacitor and comprises a conductive rod and a screw connecting piece, wherein the conductive rod is arranged in a through hole of a rubber sealing layer in a penetrating mode, one end of the conductive rod is connected with a conductive foil strip in a welding mode, the other end of the conductive rod is provided with a threaded connecting part, and the threaded connecting part is detachably connected with the screw connecting piece through threads; the wire/block is characterized by further comprising a wire/block, wherein one end of the wire/block is matched, connected and fixed with the screw connector through the threaded connecting part, and the other end of the wire/block is used for being connected with a circuit board.

Further, the threaded connecting part is an internal thread cylindrical cavity coaxial with the conducting rod; the corresponding screw connecting piece is an external thread screw matched with the internal thread cylindrical cavity.

Further, the threaded connecting part is an external thread cylindrical screw rod coaxial with the conducting rod; and the corresponding screw connecting piece is an internal thread screw matched with the external thread cylindrical screw rod.

Furthermore, the conducting rod comprises an inner connecting section and an outer connecting section which are detachably connected, one end of the inner connecting section is connected with the foil guide strip, and the other end of the inner connecting section is connected with one end of the outer connecting section; the other end of the outer connecting section is provided with a threaded connecting part connected with a screw connecting piece.

Further, still include the apron, the apron lid is located the rubber sealing layer outside, is equipped with the terminal with conducting rod looks adaptation on the apron, the terminal cover is located outside the threaded connection portion of conducting rod.

Further, the terminal includes end seat and end cap, end seat and apron fixed connection, the end cap can be dismantled with the end seat through the screw thread and be connected, the end cap lid is located outside end seat and the conducting rod, is equipped with the aperture that supplies the screw connecting piece to pass on the end cap.

Further, a sealing ring is arranged in the through hole of the rubber sealing layer.

The electrolytic capacitor comprises a shell with an opening at one end, a core arranged in the shell and a rubber sealing layer arranged at the opening end of the shell; and the core extends out of the anode and cathode guide foil strips towards the opening end of the shell, and the anode and cathode guide foil strips are respectively connected with any one of the extraction electrode mounting structures.

Furthermore, a fixing agent is arranged between the shell and the core, electrolyte is injected into the core, and the core is immersed by the electrolyte.

Further, the anti-explosion rubber sealing device is characterized by further comprising an anti-explosion valve, wherein the anti-explosion valve is arranged on the rubber sealing layer and connected with the inside and the outside of the shell.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an extraction electrode mounting structure sets up conducting rod and the screw connecting piece of looks adaptation, realizes the demountable installation of wire/piece through screw connecting piece and conducting rod threaded connection cooperation, and then connects the condenser to the circuit board through wire/piece; the screw connections and wires/blocks in the structure can be replaced. When the capacitor is used, if the lead/block is damaged, the lead/block can be detached for replacement, so that the continuous use of the capacitor is not influenced; in addition, the screw connecting piece can be replaced when damaged. By adopting the leading-out electrode mounting structure, the service life of the capacitor can be effectively prolonged, and the capacitor can be used more fully.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of an electrolytic capacitor according to the present invention.

Fig. 2 is a schematic view of a portion a of fig. 1 according to the present invention.

Fig. 3 is a schematic structural view of a conductive rod according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a screw connector according to a first embodiment of the present invention.

Fig. 5 is a schematic view of an overall structure of a second embodiment of the present invention.

Fig. 6 is a schematic structural view of a conducting rod according to a second embodiment of the present invention.

Fig. 7 is a schematic structural view of a screw connector according to a second embodiment of the present invention.

Reference numerals:

1. a housing; 2. a core; 21. a foil guide strip; 3. a rubber sealing layer; 31. a through hole; 311. a seal ring; 4. a conductive rod; 41. an interconnecting section; 42. an external connecting section; 421. a threaded connection; 5. a screw connection; 6. a cover plate; 61. an end seat; 62. an end cap.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example one

As shown in fig. 1 to 4, an embodiment of the present invention provides an extraction electrode mounting structure, which is suitable for extraction and mounting of positive and negative electrode leads of an electrolytic capacitor. The leading electrode mounting structure comprises a conductive rod 4 and a screw connector 5 which are matched with each other and a lead/block (not shown in the figure).

The conductive rod 4 is arranged in the through hole 31 of the rubber sealing layer 3 in a penetrating way and is connected with the rubber sealing layer 3 in a sealing way. One end of the conducting rod 4 is fixedly connected with the conductive foil strip 21 in the capacitor in a welding manner, the other end is provided with a threaded connection part 421, the threaded connection part 421 is matched with the screw connection part 5 and is fixed through threaded connection, and the connection is detachable. The conducting wire/block can be a conducting cable or a conducting metal block and is used for connecting the capacitor and a circuit board for mounting the capacitor; one end of the lead/block is matched, connected and fixed with the screw connector 5 through the threaded connection part 421, and the other end is used for being connected and fixed with the circuit board; namely, the positive/negative electrode foil strip 21 in the capacitor is connected with the conducting rod 4, the screw connector 5, the lead/block and the circuit board in sequence.

In one embodiment of the present disclosure, as shown in fig. 3 and 4, the conductive rod 4 has a cylindrical structure, and the threaded connection portion 421 thereon has an internal threaded cylindrical cavity structure, and the internal threaded cylindrical cavity is located at one end of the conductive rod 4 and is coaxially disposed with the conductive rod 4. The corresponding screw connecting piece 5 is an external thread screw matched with the internal thread cylindrical cavity; during connection, the external thread part of the screw connecting piece 5 extends into the internal thread cylindrical cavity to realize threaded connection with the internal thread cylindrical cavity.

The conductive rod 4 includes two detachably connected ends, an inner connecting section 41 and an outer connecting section 42. One end of the inner connecting section 41 is connected with the foil guiding strip 21, and the other end is connected with one end of the outer connecting section 42; the other end of the external connecting section 42 is coaxially provided with a threaded connection part 421 having an internal threaded cylindrical cavity structure, and is connected with the screw connection part 5 through the threaded connection part 421.

Still be equipped with apron 6, the outside of rubber sealing layer 3 is located in the lid of apron 6, and the outside is equipped with the terminal with conducting rod 4 looks adaptation on it, and outside the threaded connection portion 421 of conducting rod 4 was located to the terminal cover, played spacing fixed action to conducting rod 4, increased conducting rod 4's installation stability.

Further, the terminal comprises an end seat 61 and an end cap 62 which are matched, wherein the end seat 61 is fixedly arranged on the cover plate 6, and the end cap 62 is covered on the end seat 61 and is detachably connected with the end seat 61 through threads. The conducting rod 4 is located in the end seat 61, the end of the conducting rod 4 is flush with the end of the end seat 61, and the end cap 62 covers the end seat 61 and the conducting rod 4, so that the conducting rod 4 can be limited from separating from the rubber sealing layer 3, the cover plate 6 and the end seat 61, and the limiting and fixing effects are achieved. The end cap 62 is provided with a small hole for the screw connector 5 to pass through, and the screw portion of the screw connector 5 is connected with the screw connection portion 421 of the conducting rod 4 through the small hole.

Still be equipped with sealing washer 311 in the through-hole 31 of rubber seal layer 3, sealing washer 311 is located between conducting rod 4 and the through-hole 31 inner wall, increases the sealing performance around the conducting rod 4, further prevents that electrolyte from leaking, and increases conducting rod 4's stability, prevents that conducting rod 4 from rocking.

In summary, in the mounting structure of the embodiment, the conductive rod 4 and the screw connector 5 are arranged in a matching manner, the screw connector 5 and the conductive rod 4 are in threaded connection and matching to realize the detachable mounting of the lead/block, and then the capacitor is connected to the circuit board through the lead/block; the external connecting section 42 of the conducting rod 4, the screw connecting piece 5 and the lead/block in the structure can be replaced, so that the problem that the capacitor cannot be used due to damage of the connecting part is avoided.

Example two

The embodiment of the utility model provides an extraction electrode mounting structure, this mounting structure is similar basically with the extraction electrode mounting structure of embodiment a description, and the same part is not repeated, and the difference lies in conducting

rod

4 and 5 of screw connector's structure difference.

As shown in fig. 5 to 7, the conductive rod 4 of the present embodiment is a cylindrical structure, and the threaded connection portion 421 is an external threaded cylindrical screw structure, which is coaxially disposed with the conductive rod 4. Correspondingly, the screw connection 5 is an internally threaded screw adapted to an externally threaded cylindrical spindle. During connection, an internal thread screw passes through a small hole on the end cap 62 to be connected and fixed with the external thread cylindrical screw, and a lead/block is connected with the cap end of the screw connecting piece 5.

The diameter of the rod part of the conducting rod 4 is larger than that of the threaded connection part 421, and when the conducting rod is installed, the external connection section 42 of the conducting rod 4 is limited through the cover plate 6.

EXAMPLE III

As shown in fig. 1, an embodiment of the present invention provides an electrolytic capacitor, which includes a housing 1, the housing 1 is a cylindrical structure, and an end portion of the housing is open; a core 2 is arranged in the shell 1, and a rubber sealing layer 3 is arranged in the opening end of the shell 1. The core 2 is respectively adhered to the electrolytic paper by the anode and cathode metallized films and is rolled into a reel-shaped structure at intervals; the anode and cathode foil strips 21 connected with the metallized film in the core 2 extend out of the opening end of the shell 1; the anode and cathode foil strips 21 are connected to the extraction electrode mounting structure described in the first or second embodiment, respectively.

A fixing agent is arranged between the shell 1 and the core 2 and used for fixing the core 2 in the shell 1. Electrolyte is injected into the core 2 in the shell 1, and the electrolyte immerses the anode and cathode metallized films in the core 2, so that the normal operation of the capacitor is ensured.

An explosion-proof valve (not shown in the figure) is also arranged and is arranged on the rubber sealing layer 3 to connect the inside and the outside of the shell 1, so that the safety of the electrolytic capacitor is improved.

In conclusion, in the lead-out electrode mounting structure of the capacitor, the screw connecting piece 5 and the lead/block can be detached and replaced, and the lead/block with different types can be configured as required, so that the capacitor is stronger in adaptability and longer in service life.

In the foregoing, only certain exemplary embodiments have been described briefly. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it should be understood that the terms "inside", "outside", "upper", "lower", "front", "rear", "left", "right", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when in use, or the directions or positional relationships that those skilled in the art conventionally understand, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

The terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected or detachably connected or integrated; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The above disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of the specific examples are described above. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed.

Claims

1. The lead-out electrode mounting structure is suitable for mounting electrodes of capacitors and is characterized by comprising a conductive rod (4) and a screw connecting piece (5), wherein the conductive rod (4) is arranged in a through hole (31) of a rubber sealing layer (3) in a penetrating mode, one end of the conductive rod is connected with a conductive foil strip (21) in a welding mode, the other end of the conductive rod is provided with a threaded connecting part (421), and the threaded connecting part (421) is detachably connected with the screw connecting piece (5) through threads; the wire/block is characterized by further comprising a wire/block, wherein one end of the wire/block is matched, connected and fixed with the screw connecting piece (5) through a threaded connecting part (421), and the other end of the wire/block is used for being connected with a circuit board.

2. The extraction electrode mounting structure according to claim 1, wherein the threaded connection portion (421) is an internally threaded cylindrical cavity coaxial with the conductive rod (4); the corresponding screw connecting piece (5) is an external thread screw matched with the internal thread cylindrical cavity.

3. The extraction electrode mounting structure according to claim 1, wherein the threaded connecting portion (421) is an externally threaded cylindrical screw coaxial with the conductive rod (4); the corresponding screw connecting piece (5) is an internal thread screw matched with the external thread cylindrical screw rod.

4. The extraction electrode mounting structure according to any one of claims 1 to 3, wherein the conductive rod (4) comprises an inner connecting section (41) and an outer connecting section (42) which are detachably connected, one end of the inner connecting section (41) is connected to the foil strip (21), and the other end is connected to one end of the outer connecting section (42); the other end of the external connecting section (42) is provided with a threaded connecting part (421) which is connected with the screw connecting piece (5).

5. The extraction electrode mounting structure according to claim 4, further comprising a cover plate (6), wherein the cover plate (6) is covered on the outer side of the rubber sealing layer (3), a terminal matched with the conductive rod (4) is arranged on the cover plate (6), and the terminal is sleeved outside the threaded connection portion (421) of the conductive rod (4).

6. The extraction electrode mounting structure according to claim 5, wherein the terminal comprises an end seat (61) and an end cap (62), the end seat (61) is fixedly connected with the cover plate (6), the end cap (62) is detachably connected with the end seat (61) through a thread, the end cap (62) is covered outside the end seat (61) and the conducting rod (4), and a small hole for the screw connecting piece (5) to pass through is formed in the end cap (62).

7. The extraction electrode mounting structure according to claim 1 or 6, wherein a seal ring (311) is further provided in the through hole (31) of the rubber seal layer (3).

8. The electrolytic capacitor is characterized by comprising a shell (1) with an opening at one end, a core (2) arranged in the shell (1) and a rubber sealing layer (3) arranged at the opening end of the shell (1); the core (2) extends out of the anode and cathode foil strips (21) towards the opening end of the shell (1), and the anode and cathode foil strips (21) are respectively connected with the extraction electrode mounting structure of any one of claims 1 to 7.

9. Electrolytic capacitor according to claim 8, characterized in that a fixing agent is provided between the case (1) and the core (2), and the core (2) is filled with an electrolyte, which submerges the core (2).

10. Electrolytic capacitor according to claim 8 or 9, characterized in that an explosion-proof valve is provided, which is mounted on the rubber sealing layer (3) connecting the inside and outside of the housing (1).