Lead type aluminum electrolytic capacitor

Abstract

The utility model relates to the technical field of capacitors, in particular to a lead-type aluminum electrolytic capacitor, which comprises a capacitor core bag, a lead arranged at the top end of the capacitor core bag, a heat dissipation shell arranged outside the capacitor core bag and the lead and comprising a first protective shell, and a second protective shell connected to the top end of the first protective shell. The bottom end of the first protective shell is detachably connected with a bottom cover, and the lead extends out of the top end of the second protective shell. A stabilizing mechanism matched with the lead is arranged on the side wall of the second protective shell, the stabilizing mechanism comprises two sets of screw rods symmetrically arranged on the side wall of the second protective shell, the screw rods are in threaded connection with the second protective shell, the two sets of clamping seats are clamped outside the lead, and two sets of telescopic rods are symmetrically arranged on the clamping seats. According to the utility model, the stability of the connection part of the lead and the capacitor core bag is improved, connection loosening caused by external force pulling is avoided, the heat dissipation effect is good, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, in particular to a lead-type aluminum electrolytic capacitor. Background Art

[0002] Leaded aluminum electrolytic capacitors are commonly used components in the electronic circuits of electrical equipment, and they play electrical roles such as filtering, bypassing, coupling, decoupling, and phase conversion. During the use of existing leaded aluminum electrolytic capacitors, when the leaded aluminum electrolytic capacitors are installed at the required location, the lead wires of the leaded aluminum electrolytic capacitors are welded and fixed to the required location. After the lead wires are connected to external electronic components, the connection between the lead wires and the capacitor core package will become loose due to the operator pulling during installation or shaking during transportation, resulting in poor contact between the lead wires and the capacitor core package, thereby reducing the service life of the entire capacitor. Utility Model Content

[0003] The utility model aims to provide a lead-type aluminum electrolytic capacitor in view of the problems existing in the background technology.

[0004] The technical solution of the utility model is as follows: a lead-type aluminum electrolytic capacitor comprises a capacitor core package, a lead is arranged at the top of the capacitor core package, a heat dissipation shell is arranged outside the capacitor core package and the lead, the heat dissipation shell comprises a first protective shell, a second protective shell is connected to the top of the first protective shell, the outer diameter of the second protective shell is smaller than the inner diameter of the first protective shell, the bottom end of the first protective shell is detachably connected to a bottom cover, and the lead extends to the outside of the top of the second protective shell;

[0005] A stabilizing mechanism adapted to the lead is arranged on the side wall of the second protective shell, and the stabilizing mechanism includes two groups of screws symmetrically arranged on the side wall of the second protective shell, the screws are threadedly connected to the second protective shell, and clamping seats are arranged at opposite ends of the two groups of screws, and the screws are rotatably connected to the clamping seats. The two groups of clamping seats are clamped on the outside of the lead, and two groups of telescopic rods are symmetrically arranged on the clamping seats, and the other ends of the telescopic rods are connected to the inner wall of the second protective shell.

[0006] Preferably, a connecting seat is provided at the top of the bottom cover, the connecting seat is threadedly connected to the bottom end of the inner wall of the first protective shell, and a heat conductive block is provided in the middle of the bottom cover, and the heat conductive block abuts against the bottom end of the capacitor core package.

[0007] Preferably, a through hole is opened at the top of the second protective shell, and several groups of springs are evenly arranged around the side walls of the through hole. A protective tube is installed between the other ends of the several groups of springs. The diameter from the top to the middle part and the diameter from the bottom to the middle part of the protective tube gradually decreases, and the lead wire is slidably connected to the middle part of the inner wall of the protective tube.

[0008] Preferably, the clamping end of the clamping seat is provided with an abutment groove, an anti-slip pad is provided on the abutment groove, and the abutment groove is adapted to the lead wire.

[0009] Preferably, an adjustment seat is installed on one end of the screw rod away from the clamping seat, and a receiving groove matched with the adjustment seat is opened on the side wall of the second protective shell, and the adjustment seat is located inside the receiving groove.

[0010] Preferably, several groups of heat dissipation components are evenly arranged around the outside of the first protective shell, and the heat dissipation components include a mounting seat arranged on the side wall of the first protective shell, a heat conducting plate is slidably connected between the mounting seat and the first protective shell, and several groups of heat dissipation fins are arranged on the heat conducting plate, and the heat dissipation fins extend to the outside of the mounting seat.

[0011] Preferably, the top ends of the mounting seat and the heat conducting plate are both located on the same horizontal plane as the top end of the first protective shell, the outer wall of the second protective shell is threadedly connected to the limiting seat, and the bottom end of the limiting seat abuts against the mounting seat and the heat conducting plate.

[0012] Compared with the prior art, the above-mentioned technical scheme of the utility model has the following beneficial technical effects: the utility model facilitates clamping the lead wire through a stabilizing mechanism, thereby preventing the connection between the lead wire and the capacitor core package from loosening under the action of external force, thereby extending the service life; the setting of the heat dissipation shell facilitates disassembly and assembly and protects the capacitor core package and the lead wire; the setting of the mounting seat and the limit seat facilitates the disassembly, assembly and replacement of the heat conduction plate, and the setting of the heat dissipation shell, the heat conduction plate and the heat sink facilitates the exchange of the heat generated during the operation of the capacitor core package, thereby extending the service life of the capacitor core package. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the stabilizing mechanism of the utility model;

[0015] Figure 3 It is a schematic diagram of the connection method between the bottom cover and the first protective shell of the utility model;

[0016] Figure 4 It is a schematic diagram of the connection method between the heat conducting plate and the mounting seat of the utility model.

[0017] Figure numerals: 1, capacitor core package; 101, lead; 2, first protective shell; 201, bottom cover; 202, connecting seat; 203, heat conductive block; 3, second protective shell; 301, through hole; 302, spring; 303, protective tube; 4, mounting seat; 401, limiting seat; 5, heat conductive plate; 501, heat sink; 6, screw; 601, adjusting seat; 602, clamping seat; 603, abutting groove; 604, telescopic rod. DETAILED DESCRIPTION

[0018] Embodiment 1

[0019] like Figure 1 and Figure 3 As shown, a lead-type aluminum electrolytic capacitor proposed by the utility model includes a capacitor core package 1, a lead 101 is arranged on the top of the capacitor core package 1, a heat dissipation shell is arranged outside the capacitor core package 1 and the lead 101, the heat dissipation shell includes a first protective shell 2, a second protective shell 3 is connected to the top of the first protective shell 2, the outer diameter of the second protective shell 3 is smaller than the inner diameter of the first protective shell 2, the bottom end of the first protective shell 2 is detachably connected to a bottom cover 201, and the lead 101 extends to the outside of the top of the second protective shell 3.

[0020] Furthermore, a connection seat 202 is provided at the top of the bottom cover 201, and the connection seat 202 is threadedly connected to the bottom end of the inner wall of the first protective shell 2, and a heat conductive block 203 is provided in the middle of the bottom cover 201, and the heat conductive block 203 is abutted against the bottom end of the capacitor core package 1.

[0021] like Figure 1 and Figure 2 As shown, a stabilizing mechanism compatible with the lead 101 is provided on the side wall of the second protective shell 3, and the stabilizing mechanism includes two groups of screws 6 symmetrically arranged on the side wall of the second protective shell 3, the screws 6 are threadedly connected to the second protective shell 3, and the opposite ends of the two groups of screws 6 are provided with clamping seats 602, the screws 6 are rotatably connected to the clamping seats 602, and the two groups of clamping seats 602 are clamped on the outside of the lead 101, and two groups of telescopic rods 604 are symmetrically arranged on the clamping seats 602, and the other ends of the telescopic rods 604 are connected to the inner wall of the second protective shell 3.

[0022] Furthermore, the clamping end of the clamping seat 602 is provided with an abutment groove 603 , and an anti-slip pad is provided on the abutment groove 603 . The abutment groove 603 is adapted to the lead 101 , so as to stably clamp the lead 101 .

[0023] Furthermore, an adjustment seat 601 is installed on one end of the screw rod 6 away from the clamping seat 602 , and a receiving groove matched with the adjustment seat 601 is opened on the side wall of the second protective shell 3 , and the adjustment seat 601 is located inside the receiving groove.

[0024] In this embodiment, the capacitor core package 1 is slid and pushed along the first protective shell 2 so that the lead 101 is aligned with the second protective shell 3 and extends to the outside of the top of the second protective shell 3, and the bottom cover 201 is rotated so that the connecting seat 202 is threadedly connected with the inner wall of the first protective shell 2 until the heat conductive block 203 is tightly pressed against the bottom end of the capacitor core package 1. At this time, the top edge of the capacitor core package 1 is tightly pressed against the top of the first protective shell 2, so that the capacitor core package 1 is stably installed inside the heat dissipation shell; the first protective shell 2, the heat conductive block 203 and the bottom cover 201 are convenient for heat dissipation of the capacitor core package 1 The lead 101 is dispersed outwards by inserting a cross screwdriver into the adjustment seat 601 and rotating the screw 6. Under the guidance of the telescopic rod 604, the screw 6 rotates along the second protective shell 3 to drive the clamping seat 602 to approach the lead 101 until the adjustment seat 601 is completely moved into the storage groove of the side wall of the second protective shell 3 and abuts against the storage groove. At this time, the two groups of clamping seats 602 approach each other until they merge, and the lead 101 is clamped through the abutment groove 603 to prevent the connection between the lead 101 and the capacitor core package 1 from loosening under the action of external force, thereby extending the service life.

[0025] Embodiment 2

[0026] like Figure 1 and Figure 4 As shown, a lead-type aluminum electrolytic capacitor proposed by the utility model, compared with the first embodiment, a through hole 301 is opened at the top of the second protective shell 3, and a plurality of groups of springs 302 are evenly arranged around the side walls of the through hole 301, and a protective cylinder 303 is installed between the other ends of the plurality of groups of springs 302, and the diameter from the top to the middle of the protective cylinder 303 and the diameter from the bottom to the middle gradually decrease, and the lead 101 is slidably connected to the middle of the inner wall of the protective cylinder 303.

[0027] In this embodiment, the provision of the protective tube 303 and the spring 302 can prevent the lead wire 101 from being broken by the through hole 301 during the pulling process, thereby extending the service life.

[0028] Embodiment 3

[0029] like Figure 1 , Figure 3 and Figure 4 As shown, a lead-type aluminum electrolytic capacitor proposed by the utility model, compared with the first embodiment, a plurality of groups of heat dissipation components are evenly arranged around the outside of the first protective shell 2, and the heat dissipation components include a mounting seat 4 arranged on the side wall of the first protective shell 2, and a heat conducting plate 5 is slidably connected between the mounting seat 4 and the first protective shell 2, and a plurality of groups of heat dissipation fins 501 are arranged on the heat conducting plate 5, and the heat dissipation fins 501 extend to the outside of the mounting seat 4.

[0030] Furthermore, the top ends of the mounting seat 4 and the heat conducting plate 5 are located on the same horizontal plane as the top end of the first protective shell 2 , the outer wall of the second protective shell 3 is threadedly connected to the limiting seat 401 , and the bottom end of the limiting seat 401 abuts against the mounting seat 4 and the heat conducting plate 5 .

[0031] In this embodiment, the heat of the capacitor core package 1 during operation can be absorbed by connecting the heat dissipation shell to the capacitor core package 1 and transferred to the heat conduction plate 5, and finally dissipated to the outside through the heat sink 501. The limit seat 401 is rotated to separate it from the second protective shell 3, and the heat conduction plate 5 can be removed from the mounting seat 4, and then the heat sink 501 can be replaced to improve the heat dissipation effect.

[0032] Working principle: by rotating the adjusting seat 601, the screw 6 is driven to rotate, and under the guidance of the telescopic rod 604, the clamping seat 602 is moved close to the lead 101, and then the two groups of clamping seats 602 clamp the lead 101 to prevent the connection between the lead 101 and the capacitor core package 1 from loosening under the action of external force, thereby extending the service life; the first protective shell 2, the second protective shell 3, the bottom cover 201 and the connecting seat 202 are arranged to facilitate disassembly and assembly and protection of the capacitor core package 1 and the lead 101; the installation seat 4 and the limit seat 401 are arranged to facilitate disassembly, assembly and replacement of the heat conducting plate 5, and the first protective shell 2, the heat conducting block 203, the bottom cover 201, the heat conducting plate 5 and the heat sink 501 are arranged to facilitate the exchange of heat generated by the capacitor core package 1 during operation, thereby extending the service life of the capacitor core package 1.

[0033] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A lead-type aluminum electrolytic capacitor, comprising a capacitor core package (1), wherein a lead (101) is arranged at the top of the capacitor core package (1), characterized in that: A heat dissipation shell is arranged outside the capacitor core package (1) and the lead wire (101), the heat dissipation shell comprises a first protective shell (2), the top end of the first protective shell (2) is connected to a second protective shell (3), the outer diameter of the second protective shell (3) is smaller than the inner diameter of the first protective shell (2), the bottom end of the first protective shell (2) is detachably connected to a bottom cover (201), and the lead wire (101) extends to the outside of the top end of the second protective shell (3); A stabilizing mechanism adapted to the lead wire (101) is arranged on the side wall of the second protective shell (3), the stabilizing mechanism comprising two groups of screw rods (6) symmetrically arranged on the side wall of the second protective shell (3), the screw rods (6) being threadedly connected to the second protective shell (3), a clamping seat (602) being arranged at opposite ends of the two groups of screw rods (6), the screw rods (6) being rotatably connected to the clamping seat (602), the two groups of clamping seats (602) being clamped on the outside of the lead wire (101), two groups of telescopic rods (604) being symmetrically arranged on the clamping seat (602), the other ends of the telescopic rods (604) being connected to the inner wall of the second protective shell (3).

2. A lead-type aluminum electrolytic capacitor according to claim 1, characterized in that: A connection seat (202) is provided at the top of the bottom cover (201), the connection seat (202) is threadedly connected to the bottom end of the inner wall of the first protective shell (2), a heat conduction block (203) is provided in the middle of the bottom cover (201), and the heat conduction block (203) is in contact with the bottom end of the capacitor core package (1).

3. A lead-type aluminum electrolytic capacitor according to claim 1, characterized in that: A through hole (301) is provided at the top of the second protective shell (3), and a plurality of groups of springs (302) are evenly arranged around the side wall of the through hole (301). A protective tube (303) is installed between the other ends of the plurality of groups of springs (302). The diameter of the protective tube (303) from the top to the middle and the diameter from the bottom to the middle gradually decrease, and the lead wire (101) is slidably connected to the middle of the inner wall of the protective tube (303).

4. A lead-type aluminum electrolytic capacitor according to claim 1, characterized in that: The clamping end of the clamping seat (602) is provided with an abutment groove (603), an anti-slip pad is provided on the abutment groove (603), and the abutment groove (603) is adapted to the lead wire (101).

5. A lead-type aluminum electrolytic capacitor according to claim 1, characterized in that: An adjustment seat (601) is installed on one end of the screw rod (6) away from the clamping seat (602), and a receiving groove matched with the adjustment seat (601) is opened on the side wall of the second protective shell (3), and the adjustment seat (601) is located inside the receiving groove.

6. A lead-type aluminum electrolytic capacitor according to claim 1, characterized in that: A plurality of groups of heat dissipation components are evenly arranged around the outside of the first protective shell (2), the heat dissipation components comprising a mounting seat (4) arranged on the side wall of the first protective shell (2), a heat conduction plate (5) slidably connected between the mounting seat (4) and the first protective shell (2), a plurality of groups of heat dissipation fins (501) are arranged on the heat conduction plate (5), and the heat dissipation fins (501) extend to the outside of the mounting seat (4).

7. A lead-type aluminum electrolytic capacitor according to claim 6, characterized in that: The top ends of the mounting seat (4) and the heat conducting plate (5) are both located on the same horizontal plane as the top end of the first protective shell (2); the outer wall of the second protective shell (3) is threadedly connected to the limiting seat (401); and the bottom end of the limiting seat (401) is abutted against and connected to the mounting seat (4) and the heat conducting plate (5).

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