Capacitor

Abstract

According to the capacitor disclosed by the utility model, through the split design of copper bars, a magnetic ring can be firstly arranged at a designated position, and then branch copper bars are lapped, so that the problem of assembling the magnetic ring is solved. The capacitor comprises a capacitor shell, a capacitor inner core, a magnetic ring, a functional part, a leading-out copper bar and a branch copper bar. The capacitor inner core, the magnetic ring and the functional part are all arranged in the capacitor shell; the first end of the leading-out copper bar is electrically connected with the capacitor inner core; the second end of the lead-out copper bar penetrates through the magnetic ring and penetrates out of the capacitor shell; the branch copper bar is arranged in the capacitor shell, the first end of the branch copper bar is lapped on the lead-out copper bar part penetrating out of the magnetic ring, and the second end of the branch copper bar is electrically connected with the functional part.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, in particular to a capacitor capable of solving the problem of magnetic ring assembly. Background Art

[0002] With the rapid development of electronic vehicles, film capacitors with low self-inductance and self-healing characteristics have become the first choice for automotive capacitors. However, as companies are increasingly improving the efficiency of space utilization in electric drive control systems, the demand for capacitor integrated filter modules is becoming more urgent.

[0003] Capacitors with integrated filter modules usually require compact internal parts, so the copper busbar inevitably needs to be branched out for connecting other parts. Due to the existence of the branch, when the copper busbar width plus the length of the branch exceeds the inner diameter of the magnetic ring, the copper busbar cannot pass through the inner ring of the magnetic ring, resulting in the inability to complete the assembly of the magnetic ring. Utility Model Content

[0004] The utility model aims to provide a capacitor to solve the problems existing in the prior art. Through the design of split copper busbars, the magnetic ring can be installed in a specified position first, and then the branch copper busbars can be overlapped to solve the problem of magnetic ring assembly.

[0005] In order to achieve the above purpose, the solution of the utility model is:

[0006] A capacitor comprises a capacitor shell, a capacitor core, a magnetic ring, a functional part, a lead-out copper bar and a branch copper bar; the capacitor core, the magnetic ring and the functional part are all arranged in the capacitor shell; the first end of the lead-out copper bar is electrically connected to the capacitor core; the second end of the lead-out copper bar passes through the magnetic ring and passes through the capacitor shell; the branch copper bar is arranged in the capacitor shell, the first end of which is overlapped on the lead-out copper bar portion passing through the magnetic ring, and the second end of the branch copper bar is electrically connected to the functional part.

[0007] The capacitor core is arranged in the upper and lower directions in the capacitor shell; the number of the lead-out copper bars is designed to be two, the first ends of the two lead-out copper bars are respectively overlapped on the upper and lower surfaces of the capacitor core, and the second ends of both are bent to a height that can pass through the inner circle of the magnetic ring 3 and then led out of the capacitor shell in the horizontal direction.

[0008] Preferably, the second ends of the two lead-out copper bars in the magnetic ring are arranged side by side without overlapping, and the functional component is arranged on the side of the magnetic ring.

[0009] Preferably, the extension direction of the branch copper busbar is perpendicular to the extension direction of the lead-out copper busbar.

[0010] A mounting hole is arranged on the portion of the lead-out copper bar passing through the capacitor housing.

[0011] The branch copper busbar and the lead-out copper busbar are made of the same conductive material.

[0012] A connecting ear is arranged on the outer side of the capacitor housing, one electrode of the functional component is connected to a conductive sheet, the conductive sheet is bent along the capacitor housing and extends to the connecting ear; the other electrode of the functional component is electrically connected to the branch copper busbar.

[0013] Preferably, a first partition and a second partition that are groove-shaped and connected are provided in the capacitor housing, the capacitor core is provided in the first partition, the magnetic ring and functional parts are provided in the second partition, and the connecting ear is provided on the side of the second partition.

[0014] Preferably, a groove is provided at the bottom of the second partition, and the functional component is arranged in the groove.

[0015] The end surface of the magnetic ring facing the inner core of the capacitor is fixedly connected with a limiting ring, a circle of limiting flange is arranged inside the limiting ring, and the limiting flange abuts against the surface of the lead-out copper busbar.

[0016] After adopting the above technical solution, the utility model has the following technical effects:

[0017] The utility model divides the copper bar into a lead-out copper bar and a branch copper bar. The lead-out copper bar can freely pass through the magnetic ring according to the existing conventional design. Therefore, when assembling the product, the magnetic ring can be assembled first and then the branch copper bar can be overlapped. The branch copper bar does not affect the assembly position of the magnetic ring, and there is no problem that the magnetic ring cannot be assembled due to the small inner diameter of the magnetic ring. The size of the magnetic ring can also be further optimized, thereby adjusting and reducing the overall volume of the capacitor. At the same time, since the branch copper bar is overlapped on the lead-out copper bar part that passes through the magnetic ring, its length can also be freely designed according to the installation position of the functional parts, the design becomes more flexible, and the parts in the capacitor housing can be arranged more compactly in space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of a specific embodiment of the utility model;

[0019] Figure 2 A top view of a specific embodiment of the utility model;

[0020] Figure 3 It is a cross-sectional view of a specific embodiment of the utility model;

[0021] Description of Figure Numbers:

[0022] 1-capacitor housing; 1a-first partition; 1b-second partition; 11-connecting ear; 12-groove; 2-capacitor core; 3-magnetic ring; 4-functional part; 5-lead copper busbar; 51-mounting hole; 6-branch copper busbar; 7-conductive sheet; 8-limiting ring; 81-limiting flange. DETAILED DESCRIPTION

[0023] In order to further explain the technical solution of the present utility model, the present utility model is described in detail below through specific embodiments.

[0024] refer to Figures 1 to 3 As shown, the utility model discloses a capacitor, including a capacitor housing 1, a capacitor core 2, a magnetic ring 3, a functional part 4, a lead copper bar 5 and a branch copper bar 6;

[0025] The capacitor core 2, the magnetic ring 3, and the functional parts 4 are all arranged in the capacitor housing 1;

[0026] The first end of the lead-out copper bar 5 is electrically connected to the capacitor core 2; the second end of the lead-out copper bar 5 is passed through the magnetic ring 3 and out of the capacitor housing 1 so as to be connected to other devices;

[0027] The branch copper bar 6 is arranged in the capacitor housing 1 , and a first end thereof is overlapped on the lead-out copper bar 5 portion passing through the magnetic ring 3 , and a second end of the branch copper bar 6 is electrically connected to the functional component 4 .

[0028] Through the above scheme, the utility model divides the copper bar into a lead-out copper bar 5 and a branch copper bar 6. The lead-out copper bar 5 can freely pass through the magnetic ring 3 according to the existing conventional design. Therefore, when assembling the product, the magnetic ring 3 can be assembled first and then the branch copper bar 6 can be overlapped. The branch copper bar 6 does not affect the assembly position of the magnetic ring 3, and there is no problem that the magnetic ring 3 cannot be assembled due to the small inner diameter of the magnetic ring 3. The size of the magnetic ring 3 can also be further optimized, thereby adjusting and reducing the overall volume of the capacitor; at the same time, since the branch copper bar 6 is overlapped on the lead-out copper bar 5 that passes through the magnetic ring 3, its length can also be freely designed according to the installation position of the functional part 4, the design becomes more flexible, and the parts in the capacitor housing 1 can be arranged more compactly in space.

[0029] Specific embodiments of the present utility model are shown below.

[0030] The capacitor core 2 is arranged in the upper and lower directions in the capacitor housing 1; the number of lead-out copper bars 5 is designed to be two, and the first ends of the two lead-out copper bars 5 are respectively overlapped on the upper and lower surfaces of the capacitor core 2, and the second ends of both are bent to a height that can pass through the inner circle of the magnetic ring 3 and then led out of the capacitor housing 1 horizontally.

[0031] Furthermore, the second ends of the two lead-out copper bars 5 in the magnetic ring 3 are arranged side by side without overlapping, and the functional component 4 is arranged on the side of the magnetic ring 3. Then the extension direction of the branch copper bar 6 is perpendicular to the extension direction of the lead-out copper bar 5, so that the parts arrangement is more compact. In this embodiment, the number of the functional components 4 is designed to be two, respectively located on both sides of the magnetic ring 3, and the number of the branch copper bars 6 is also two.

[0032] The functional component 4 is a filter module such as an X capacitor and a Y capacitor.

[0033] The portion of the lead-out copper bar 5 that passes through the capacitor housing 1 is provided with a mounting hole 51 to facilitate connection to external electrical equipment.

[0034] The above-mentioned branch copper bus 6 and the lead-out copper bus 5 are made of the same conductive material, and the end of the branch copper bus 6 can be directly overlapped on the lead-out copper bus 5 (the end of the branch copper bus 6 is pressed against the lead-out copper bus 5 by the subsequent filling packaging material), or it can be fixedly connected to the lead-out copper bus 5 by welding or other processes.

[0035] A connecting ear 11 is provided on the outer side of the capacitor housing 1 , one electrode of the functional component 4 is connected to a conductive sheet 7 , the conductive sheet 7 is bent along the capacitor housing 1 and extends to the connecting ear 11 ; the other electrode of the functional component 4 is electrically connected to the branch copper bus 6 .

[0036] Furthermore, the capacitor housing 1 is provided with a groove-shaped and interconnected first partition 1a and second partition 1b, the capacitor core 2 is arranged in the first partition 1a, the magnetic ring 3 and the functional part 4 are arranged in the second partition 1b, the connecting ear 11 is arranged on one side or both sides of the second partition 1b, and the conductive sheet 7 is directly led out from the side of the second partition 1b, which can reduce the inductance corresponding to the functional part 4.

[0037] Secondly, a groove 12 is provided at the bottom of the second partition 1b, and the functional component 4 is provided in the groove 12. Since a shielding plate is generally installed above the capacitor housing 1, and the height of the functional component 4 is a fixed value, the installation height of the upper surface of the functional component 4 can be reduced by designing the groove 12, thereby increasing the safety distance between the functional component 4 and the shielding plate.

[0038] The end surface of the magnetic ring 3 facing the capacitor core 2 is fixedly connected to a limit ring 8, and a circle of limit flange 81 is arranged inside the limit ring 8. The limit flange 81 abuts against the surface of the lead-out copper bus 5 to limit the up, down, left and right position relationship between the lead-out copper bus 5 and the magnetic ring 3.

[0039] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. A capacitor, characterized in that: Including capacitor shell, capacitor core, magnetic ring, functional parts, lead copper busbar and branch copper busbar; The capacitor core, magnetic ring and functional parts are all arranged in the capacitor housing; The first end of the lead-out copper bar is electrically connected to the inner core of the capacitor; the second end of the lead-out copper bar is passed through the magnetic ring and passes through the capacitor housing; The branch copper bar is arranged in the capacitor housing, and a first end of the branch copper bar is overlapped on the lead-out copper bar portion passing through the magnetic ring, and a second end of the branch copper bar is electrically connected to the functional component.

2. The capacitor according to claim 1, wherein: The capacitor inner core is arranged in the upper and lower directions in the capacitor shell; the number of the lead-out copper bars is designed to be two, the first ends of the two lead-out copper bars are respectively overlapped on the upper and lower surfaces of the capacitor inner core, and the second ends of both are bent to a height that can pass through the inner ring of the magnetic ring and then led out of the capacitor shell in the horizontal direction.

3. The capacitor according to claim 2, wherein: The second ends of the two lead-out copper bars in the magnetic ring are arranged in parallel without overlapping, and the functional parts are arranged on the side of the magnetic ring.

4. The capacitor according to claim 3, wherein: The extension direction of the branch copper busbar is perpendicular to the extension direction of the lead-out copper busbar.

5. The capacitor according to claim 1, wherein: A mounting hole is arranged on the portion of the lead-out copper bar passing through the capacitor housing.

6. The capacitor according to claim 1, wherein: The branch copper busbar and the lead-out copper busbar are made of the same conductive material.

7. The capacitor according to claim 1, wherein: A connecting ear is arranged on the outer side of the capacitor housing, one electrode of the functional component is connected to a conductive sheet, the conductive sheet is bent along the capacitor housing and extends to the connecting ear; the other electrode of the functional component is electrically connected to the branch copper busbar.

8. The capacitor according to claim 7, wherein: The capacitor housing is provided with a first partition and a second partition which are groove-shaped and connected, the capacitor core is arranged in the first partition, the magnetic ring and the functional parts are arranged in the second partition, and the connecting ear is arranged on the side of the second partition.

9. The capacitor according to claim 8, wherein: A groove is arranged at the bottom of the second partition, and the functional part is arranged in the groove.

10. The capacitor according to claim 1, wherein: The end surface of the magnetic ring facing the inner core of the capacitor is fixedly connected with a limiting ring, a circle of limiting flange is arranged inside the limiting ring, and the limiting flange abuts against the surface of the lead-out copper busbar.

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