Capacitor

Abstract

The utility model discloses a capacitor which can meet the use requirements of heightening, heat insulation and electrode limiting. The capacitor comprises a first electrode, a second electrode and at least one insulating part of the capacitor; a first leading-out end of the first electrode and a second leading-out end of the second electrode are exposed out of the surface of the capacitor and are arranged in parallel up and down; the insulating part is arranged between the first leading-out end and the second leading-out end in a matched mode, the upper surface of the insulating part is provided with a slot for the first leading-out end to be inserted and matched, and the lower surface of the insulating part is matched with the second leading-out end in a positioning mode.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, in particular to a capacitor with optimized inter-electrode insulation effect. Background Art

[0002] With the rapid development of electronic power technology, metallized film capacitors are increasingly used in industrial control, new energy, automotive electronics, rail transit, power grids and other fields. The electrode design of capacitors tends to be diversified, and the design requirements for inter-electrode insulation are also gradually diversified, and a variety of performance requirements need to be taken into account.

[0003] The industry currently generally uses insulating film as a method of insulation between capacitor electrodes. However, for some busbars with severe heating conditions, the need for elevated insulation and high size requirements (the electrodes need to be positioned), the use of insulating film alone cannot meet the usage requirements. Even in some usage scenarios, when the customer uses laser welding for organization, there is a risk of welding or melting through the electrode together with the insulating film. Utility Model Content

[0004] The purpose of the utility model is to provide a capacitor, which solves the problems existing in the prior art and can meet the use requirements of padding, heat insulation and limiting the position of electrodes.

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

[0006] A capacitor comprises a first electrode, a second electrode and at least one insulating member; the first lead-out end of the first electrode and the second lead-out end of the second electrode are both exposed on the surface of the capacitor and are arranged in parallel up and down; the insulating member is fitted between the first lead-out end and the second lead-out end, and the upper surface of the insulating member is provided with a slot for the first lead-out end to be plugged in and fitted, and the lower surface of the insulating member is positioned and fitted with the second lead-out end.

[0007] The insulating member is made of hard insulating material.

[0008] An inserting portion inserted into the slot is disposed at the end of the first lead-out terminal, and a width of the inserting portion is equal to a width of the slot.

[0009] Preferably, upper edges on both sides of the slot protrude towards each other to form limiting flanges, and the limiting flanges are pressed against the edges of the plug-in portion.

[0010] Preferably, the bottom wall of the slot protrudes upward to form at least one rib, and the rib abuts against the lower surface of the plug-in portion.

[0011] A limiting portion is protruded from the lower surface of the insulating member, and the limiting portion is embedded in the second lead-out end.

[0012] Preferably, the second lead-out end is provided with a limiting hole matching the limiting portion.

[0013] The capacitor further includes an insulating film; the insulating film is arranged between the first electrode and the second electrode.

[0014] The first electrode and the second electrode are both buried in the insulating filler filled in the capacitor shell and are electrically connected to the core group in the capacitor shell.

[0015] After adopting the above technical solution, the utility model has the following technical effects:

[0016] The utility model arranges an insulating member with a certain thickness between the first lead-out end of the first electrode and the second lead-out end of the second electrode, so that the first electrode is raised relative to the second electrode to ensure the relative distance between the two, which can meet the use requirements of raising and insulating; a positioning structure is provided between the lower surface of the insulating member and the second lead-out end to ensure the relative position of the insulating member and the second lead-out end, and at the same time, the slot on the upper surface of the insulating member can position the first lead-out end located above, thereby meeting the use requirements of limiting the electrodes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of a specific embodiment of the utility model;

[0018] Figure 2 It is an exploded view of a specific embodiment of the utility model;

[0019] Figure 3 It is a front view of a specific embodiment of the utility model;

[0020] Figure 4 for Figure 3 Sectional view in the AA direction;

[0021] Figure 5 for Figure 4 Cross-sectional view in the BB direction;

[0022] Description of Figure Numbers:

[0023] 1-first electrode; 11-first lead-out terminal; 111-plug-in portion; 2-second electrode; 21-second lead-out terminal; 211-limiting hole; 3-insulating member; 31-slot; 311-limiting flange; 312-rib; 32-limiting portion; 4-insulating film; 5-capacitor housing; 6-insulating filler; 7-core group. DETAILED DESCRIPTION

[0024] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0025] refer to Figures 1 to 5 As shown, the utility model discloses a capacitor, comprising a first electrode 1, a second electrode 2, and at least one insulating member 3 of the capacitor;

[0026] The first lead-out end 11 of the first electrode 1 and the second lead-out end 21 of the second electrode 2 are both exposed on the surface of the capacitor and are arranged vertically and parallelly;

[0027] The insulating member 3 is fitted between the first lead-out terminal 11 and the second lead-out terminal 21 , and a slot 31 for the first lead-out terminal 11 to be plugged into is provided on the upper surface of the insulating member 3 , and the lower surface of the insulating member 3 is positioned and fitted with the second lead-out terminal 21 .

[0028] Through the above scheme, the utility model arranges an insulating member 3 with a certain thickness between the first lead-out end 11 of the first electrode 1 and the second lead-out end 21 of the second electrode 2, so that the first electrode 1 is raised relative to the second electrode 2 to ensure the relative distance between the two, which can meet the use requirements of raising and insulating; a positioning structure is provided between the lower surface of the insulating member 3 and the second lead-out end 21 to ensure the relative position of the insulating member 3 and the second lead-out end 21, and at the same time, the slot 31 on the upper surface of the insulating member 3 can position the first lead-out end 11 located above, thereby meeting the use requirements of limiting the electrodes.

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

[0030] The insulating member 3 is made of a hard insulating material, which can ensure a stable shape and sufficient strength. The specific material is selected according to the actual application.

[0031] The end of the first lead-out terminal 11 is provided with an inserting portion 111 inserted into the slot 31 , and the width of the inserting portion 111 is equal to the width of the slot 31 to achieve the limiting function of the slot 31 on the first lead-out terminal 11 .

[0032] Furthermore, upper edges of both sides of the slot 31 protrude toward each other to form limiting flanges 311 , and the limiting flanges 311 can press the edge of the plug-in portion 111 to prevent it from warping after installation and during subsequent processing.

[0033] At the same time, the bottom wall of the above-mentioned slot 31 protrudes upward to form at least one rib 312, and the rib 312 abuts against the lower surface of the plug-in part 111, which can reduce the area where the plug-in part 111 fits with the bottom wall of the slot 31, thereby raising the plug-in part 111 and making the plug-in part 111 have a larger contact area with the air, which helps to improve the heat dissipation performance.

[0034] The lower surface of the insulating member 3 protrudes to form a limiting portion 32, which is embedded in the second lead-out terminal 21 to achieve positioning and matching between the insulating member 3 and the second lead-out terminal 21. When the limiting portion 32 is a cylinder, the number of the limiting portions 32 needs to be designed to be at least two to prevent rotation.

[0035] Furthermore, the second lead-out end 21 is provided with a limiting hole 211 matching the limiting portion 32 .

[0036] The utility model further includes an insulating film 4; the insulating film 4 is arranged between the first electrode 1 and the second electrode 2, and most of it is mainly arranged in a partial area without the insulating member 3, further improving the insulation isolation effect, but it does not mean that the technical solution of the utility model must use the insulating film 4. When the setting area of ​​the insulating film 4 overlaps with the insulating member 3, the insulating member 3 is arranged above the insulating film 4 and passes through the insulating film 4 to be positioned and matched with the second lead-out end 21.

[0037] Most of the first electrode 1 and the second electrode 2 are buried in the insulating filler 6 filled in the capacitor housing 5 , and are electrically connected to the core group 7 in the capacitor housing 5 .

[0038] 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: comprising a first electrode, a second electrode, and at least one insulating member of a capacitor; The first lead-out end of the first electrode and the second lead-out end of the second electrode are both exposed on the surface of the capacitor and are arranged vertically and parallelly; The insulating member is fitted between the first lead-out terminal and the second lead-out terminal, and a slot for the first lead-out terminal to be plugged in is provided on the upper surface of the insulating member, and the lower surface of the insulating member is positioned and fitted with the second lead-out terminal.

2. The capacitor according to claim 1, wherein: The insulating member is made of hard insulating material.

3. The capacitor according to claim 1, wherein: An inserting portion inserted into the slot is disposed at the end of the first lead-out terminal, and a width of the inserting portion is equal to a width of the slot.

4. The capacitor according to claim 3, wherein: Upper edges of both sides of the slot protrude toward each other to form limiting flanges, and the limiting flanges are pressed on the edges of the plug-in portion.

5. The capacitor according to claim 3, wherein: The bottom wall of the slot protrudes upward to form at least one rib, and the rib abuts against the lower surface of the plug-in portion.

6. The capacitor according to claim 1, wherein: A limiting portion is protruded from the lower surface of the insulating member, and the limiting portion is embedded in the second lead-out end.

7. The capacitor according to claim 6, wherein: The second lead-out end is provided with a limiting hole matching the limiting portion.

8. The capacitor according to claim 1, wherein: An insulating film is also included; the insulating film is disposed between the first electrode and the second electrode.

9. The capacitor according to claim 1, wherein: The first electrode and the second electrode are both buried in the insulating filler filled in the capacitor shell and are electrically connected to the core group in the capacitor shell.

Images