Chip solid aluminum electrolytic capacitor

Abstract

The utility model discloses a surface-mounted solid aluminum electrolytic capacitor, which comprises a base and a capacitor shell, a fixing seat is arranged on the top surface of the base, a capacitor core is arranged in the capacitor shell, a fixing assembly used for fixing the capacitor core is arranged in the capacitor shell and located at the bottom of the capacitor core, the fixing assembly comprises a connecting shell, and the connecting shell is connected with the base. A movable groove is formed in the connecting shell, the screw is separated from the threaded connection with the threaded groove in the surface of the positioning rod by screwing the screw, so that the top cover can be taken out from the top of the capacitor shell, the conductive column is pulled upwards, the conductive column drives the clamping block at the bottom of the capacitor core to be separated from the clamping connection with the two sets of clamping hooks, and the capacitor core can be taken out from the capacitor shell. The capacitor is simple in structure and convenient to disassemble, the problem that the whole capacitor needs to be replaced when the capacitor core is replaced is avoided, the base is welded and fixed to the circuit board, disassembly and replacement are convenient, the capacitor shell can be repeatedly used, and cost is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrolytic capacitors, and in particular relates to a chip solid-state aluminum electrolytic capacitor. Background Art

[0002] Capacitors are widely used in circuits and are an indispensable component in the power supply circuits of electronic products. Capacitors of various types of voltages are required on circuit boards.

[0003] After searching, the Chinese patent application CN211376423U was found. It proposes a solid-state aluminum electrolytic capacitor with a patch structure, comprising a horizontally arranged solid-state aluminum electrolytic capacitor body, conductive posts disposed at both ends of the solid-state aluminum electrolytic capacitor body and electrically connected to the solid-state aluminum electrolytic capacitor body, and a support frame disposed below and electrically connected to the conductive posts for supporting and mounting the solid-state aluminum electrolytic capacitor body. The solid-state aluminum electrolytic capacitor provided by this utility model has high mounting reliability and improves product quality.

[0004] Existing, like the above-mentioned solid-state aluminum electrolytic capacitor, although the electrolytic capacitor body can be welded and fixed, in the above-mentioned device, when the capacitor core in the capacitor fails or is damaged in the working state, it is necessary to melt the solder joint to disassemble the faulty capacitor and replace the entire capacitor body, which is costly and troublesome to disassemble. Utility Model Content

[0005] The purpose of the present utility model is to provide a chip solid-state aluminum electrolytic capacitor to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a solid-state aluminum electrolytic capacitor comprising:

[0007] A base, wherein a fixing seat is provided on the top surface of the base;

[0008] A capacitor housing is provided on the surface of a fixed seat, a capacitor core is provided in the capacitor housing, a fixing component for fixing the capacitor core is provided in the capacitor housing and at the bottom of the capacitor core, the fixing component includes a connecting shell, a movable groove is provided in the connecting shell, two groups of hooks are connected in the movable groove by rotating shafts, and a spring is fixedly connected between the two groups of hooks.

[0009] Preferably, a slot is provided on the surface of the two sets of hooks and at one end away from the spring.

[0010] Preferably, a clamping block is provided at the bottom of the capacitor core, and the clamping block is engaged with the clamping slot.

[0011] Preferably, a top cover is provided on the top of the capacitor housing, positioning rods are provided on both sides of the bottom of the top cover, and positioning grooves are provided on both sides of the top of the capacitor housing. The positioning rods are matched and plugged into the positioning grooves. The positioning rods and the positioning grooves are positioned and plugged into each other to avoid the problem of misalignment when closing the top cover.

[0012] Preferably, a screw is provided on one side of the capacitor housing, and a group of positioning rods are provided with a thread groove on their surface.

[0013] Preferably, one end of the screw is rotated through the capacitor housing and then screwed to the thread groove on the surface of the positioning rod to fix the top cover, which is convenient for later removal of the top cover.

[0014] Preferably, two groups of conductive posts are provided on the top of the capacitor core, and one end of the conductive post is movable through an opening provided on the surface of the top cover.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) By turning the screw to disengage the screw from the threaded groove on the surface of the positioning rod, the top cover can be removed from the top of the capacitor housing, and the conductive column is pulled upward. The conductive column drives the block at the bottom of the capacitor core to disengage from the engagement with the two sets of hooks, so that the capacitor core can be removed from the capacitor housing. Disassembly is more convenient and avoids the problem of having to replace the entire capacitor when replacing the capacitor core.

[0017] (2) By welding the base to the circuit board, when the capacitor core needs to be replaced, it is only necessary to open the top cover and take out the capacitor core in the capacitor shell to replace the capacitor core. Disassembly and replacement are relatively convenient, and the capacitor shell can be reused, which greatly reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3 For this utility model Figure 2 A schematic diagram of the structure enlarged in the middle;

[0021] Figure 4 It is a structural schematic diagram of the utility model after the clamping block and the clamping hook are disengaged.

[0022] In the figure: 1. Base; 2. Fixing seat; 3. Capacitor shell; 4. Capacitor core; 5. Fixing assembly; 6. Connecting shell; 7. Movable slot; 8. Hook; 9. Spring; 10. Slot; 11. Rotating shaft; 12. Block; 13. Top cover; 14. Positioning rod; 15. Positioning slot; 16. Screw; 17. Threaded slot; 18. Conductive column. DETAILED DESCRIPTION

[0023] 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.

[0024] The utility model provides Figure 1-4 A solid-state aluminum electrolytic capacitor is shown, comprising:

[0025] A base 1, wherein a fixing seat 2 is provided on the top surface of the base 1;

[0026] A capacitor housing 3 is provided on the surface of the fixing seat 2, a capacitor core 4 is provided in the capacitor housing 3, a fixing component 5 for fixing the capacitor core 4 is provided in the capacitor housing 3 and at the bottom of the capacitor core 4, the fixing component 5 includes a connecting shell 6, a movable groove 7 is provided in the connecting shell 6, two groups of hooks 8 are rotatably connected in the movable groove 7 through a rotating shaft 11, and a spring 9 is fixedly connected between the two groups of hooks 8.

[0027] A slot 10 is provided on the surface of the two sets of hooks 8 and at one end away from the spring 9. A block 12 is provided at the bottom of the capacitor core 4. The block 12 is engaged with the slot 10, and the contact surface between the block 12 and the slot 10 in the hook 8 is arc-shaped.

[0028] A top cover 13 is provided on the top of the capacitor housing 3, and positioning rods 14 are provided on both sides of the bottom of the top cover 13. Positioning grooves 15 are provided on both sides of the top of the capacitor housing 3. The positioning rods 14 are matched and plugged into the positioning grooves 15. A screw 16 is provided on one side of the capacitor housing 3, and a group of positioning rods 14 are provided with a threaded groove 17 on the surface. One end of the screw 16 is rotated through the capacitor housing 3 and is screwed and fixed with the threaded groove 17 on the surface of the positioning rod 14. When the positioning rods 14 at the bottom of the top cover 13 are inserted into the positioning grooves 15 on both sides of the top of the capacitor housing 3, the screws 16 can be screwed into the threaded grooves 17 on the surface of the positioning rods 14 by screwing them, thereby fixing the top cover 13 to the capacitor housing 3. When removing the top cover 13, the screws 16 can be screwed in the opposite direction.

[0029] Two groups of conductive posts 18 are provided on the top of the capacitor core 4 . One end of the conductive post 18 is movable through an opening provided on the surface of the top cover 13 , so as to facilitate connection with the circuit board through the conductive post 18 .

[0030] The chip solid aluminum electrolytic capacitor is fixed to the circuit board by welding the base 1. When the damaged capacitor core 4 needs to be replaced, the screw 16 is screwed out of the screw groove 17 on the surface of the positioning rod 14 by screwing the screw 16, so that the top cover 13 can be removed from the top of the capacitor housing 3 and the conductive column 18 is pulled upward. Figure 4 As shown, when the conductive post 18 is pulled upward, the conductive post 18 drives the clamping block 12 to move upward. Since the contact surfaces of the clamping block 12 and the inner slot 10 of the hook 8 are both arc-shaped, both sides of the clamping block 12 contact the arc-shaped contact surfaces of the inner slot 10 of the hook 8, causing the two sets of hooks 8 to rotate outward with the rotating shaft 11 as the center point and compress the spring 9, thereby moving the clamping block 12 out of the hook 8 and disengaging the clamping block 12 from the hook 8. As a result, the capacitor core 4 can be removed from the capacitor housing 3, which is more convenient to disassemble and avoids the problem of having to replace the entire capacitor when replacing the capacitor core 4.

[0031] When a new capacitor core 4 needs to be installed into the capacitor housing 3, since the contact surfaces of the block 12 and the hook 8 are both arc-shaped, when the block 12 is inserted into the two sets of hooks 8, the two sets of hooks 8 rotate outward with the rotating shaft 11 as the center point and compress the spring 9. When the block 12 is fully inserted into the hook 8 and contacts the slot 10, the spring 9 rebounds, and the block 12 is engaged with the slot 10, thereby fixing the capacitor core 4 in the capacitor housing 3.

[0032] The engagement of the clamping block 12 with the clamping slot 10 secures the capacitor core 4 in the capacitor housing 3 and provides protection. When disassembly is required, since the contact surfaces of the clamping block 12 and the clamping slot 10 in the hook 8 are both arc-shaped, a certain pulling force is required to pull the conductive post 18 upwards, so that both sides of the clamping block 12 come into contact with the arc-shaped contact surfaces of the clamping slot 10 in the hook 8. This allows the two sets of hooks 8 to rotate outward with the rotating shaft 11 as the center point and compress the spring 9, thereby moving the clamping block 12 out of the hook 8 and disengaging the clamping block 12 from the hook 8, thereby allowing the capacitor core 4 to be removed from the capacitor housing 3.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A solid-state aluminum electrolytic capacitor, characterized in that: include: A base (1), wherein a fixing seat (2) is provided on the top surface of the base (1); A capacitor housing (3) is provided on the surface of a fixing seat (2), a capacitor core (4) is provided in the capacitor housing (3), a fixing assembly (5) for fixing the capacitor core (4) is provided in the capacitor housing (3) and at the bottom of the capacitor core (4), the fixing assembly (5) comprising a connecting shell (6), a movable groove (7) provided in the connecting shell (6), two groups of hooks (8) rotatably connected in the movable groove (7) via a rotating shaft (11), and a spring (9) fixedly connected between the two groups of hooks (8).

2. The chip solid-state aluminum electrolytic capacitor according to claim 1, characterized in that: A clamping groove (10) is provided on the surface of the two groups of clamping hooks (8) and at one end away from the spring (9).

3. The chip solid aluminum electrolytic capacitor according to claim 2, characterized in that: A clamping block (12) is provided at the bottom of the capacitor core (4), and the clamping block (12) is engaged with the clamping slot (10).

4. The chip solid aluminum electrolytic capacitor according to claim 1, characterized in that: The top of the capacitor housing (3) is provided with a top cover (13), and positioning rods (14) are provided on both sides of the bottom of the top cover (13). Positioning grooves (15) are provided in both sides of the top of the capacitor housing (3), and the positioning rods (14) are plugged into the positioning grooves (15).

5. The chip solid aluminum electrolytic capacitor according to claim 4, characterized in that: A screw (16) is provided on one side of the capacitor housing (3), and a thread groove (17) is provided on the surface of one group of positioning rods (14).

6. The chip solid aluminum electrolytic capacitor according to claim 5, characterized in that: One end of the screw (16) is rotated to penetrate the capacitor housing (3) and then is screwed and fixed to the thread groove (17) on the surface of the positioning rod (14).

7. The chip solid aluminum electrolytic capacitor according to claim 4, characterized in that: Two groups of conductive columns (18) are provided on the top of the capacitor core (4), and one end of the conductive column (18) is movable through an opening provided on the surface of the top cover (13).

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