CN210272084U - Circular direct current supports electric capacity with insulation system - Google Patents
Circular direct current supports electric capacity with insulation system Download PDFInfo
- Publication number
- CN210272084U CN210272084U CN201921269984.8U CN201921269984U CN210272084U CN 210272084 U CN210272084 U CN 210272084U CN 201921269984 U CN201921269984 U CN 201921269984U CN 210272084 U CN210272084 U CN 210272084U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- insulating cover
- ring
- terminal
- capacitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The utility model relates to a circular direct current supports electric capacity with insulation system, including top cap, the casing that holds the core, terminal, the top cap lid is in on the casing, the terminal is followed the top cap top is drawn forth, the top cap is including the cover the first insulation cover plate and the setting of terminal are in first insulation cover plate outlying aluminium system apron. The utility model discloses when having good thermal diffusivity, and have more excellent insulating nature.
Description
Technical Field
The utility model relates to a condenser technical field especially relates to a circular direct current supports electric capacity with insulation system.
Background
Direct current support capacitors, also known as DC-Link capacitors. A DC support capacitor belongs to one of passive devices. The direct current support capacitor mainly adopts a polypropylene film medium direct current support capacitor (film capacitor), and has the advantages of high voltage resistance, large current resistance, low impedance, low inductance, small capacity loss, small leakage current, good temperature performance, high charging and discharging speed, long service life (about 10 ten thousand hours), good safety explosion-proof stability, convenient non-polar installation and the like. Is widely applied to the power electronic industry.
Generally, a dc support capacitor is composed of an aluminum top cover and an aluminum top cover for heat dissipation, however, since the aluminum top cover has a small area, the distance between two terminals is small, and thus the two terminals are easily electrically conductive, which easily causes the capacitor to be damaged.
SUMMERY OF THE UTILITY MODEL
To the defect of prior art, the utility model aims to solve the technical problem that a circular direct current supports electric capacity with insulation system is provided, when it has good thermal diffusivity, has more excellent insulating nature.
A capacitor comprises a top cover, a shell for accommodating a core and a terminal, wherein the top cover covers the shell, the terminal is led out from the top end of the top cover, and the top cover comprises a first insulating cover plate sleeved on the terminal and an aluminum cover plate arranged on the periphery of the first insulating cover plate.
Preferably, the first insulating cover plate comprises an upper column sleeve, the upper column sleeve is sleeved on the terminal, and the terminal is led out from the top end of the upper column sleeve.
Preferably, first insulating cover still includes buckle structure, buckle structure includes bump and snap ring, the bump with the card forms the draw-in groove, and, aluminium system apron includes the bulge loop, through the bulge loop inserts the draw-in groove, the bump supports the bulge loop upper end, the snap ring supports the bulge loop lower extreme.
Preferably, the first insulating cover plate is made of plastic.
Preferably, the aluminum cover plate comprises a first snap ring, and the first snap ring is buckled with the top of the shell.
Preferably, the top cover further comprises a second insulating cover plate sleeved between the first insulating cover plate and the aluminum cover plate.
Preferably, the second insulating cover plate comprises a ring part, a round part and a ring groove between the ring part and the round part;
and the first insulating cover plate comprises a second snap ring, and the second insulating cover plate is buckled with the first insulating cover plate through the second snap ring and the annular groove.
Preferably, the second insulating cover plate further comprises a separator plate disposed between the two terminals.
Preferably, the first insulating cover plate further comprises a lower column sleeve extending into the housing and abutting against one side of the core.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a first insulating cover keeps apart two terminals, and keeps apart between with the terminal aluminium system apron through first insulating cover board, and then makes between two terminals non-conductive for between terminal and the aluminium system apron non-conductive. Synthesize the utility model discloses can have better heat dispersion through aluminium system apron heat conduction, simultaneously, the utility model discloses can have more excellent insulating properties through first insulating lid, and then have longer life.
Drawings
Fig. 1 is a schematic perspective view of the novel capacitor of the present invention;
fig. 2 is a schematic structural view of the top cover of the present invention;
fig. 3 is a schematic structural diagram of a first insulating cover plate of the present invention;
fig. 4 is a schematic cross-sectional view of the novel capacitor of the present invention;
FIG. 5 is an enlarged schematic view at A in FIG. 4;
fig. 6 is a schematic structural view of a second insulating cover plate of the present invention.
Wherein the reference numerals are:
the structure comprises a shell 2, a top cover 3, a first insulating cover plate 31, an upper column sleeve 311, a second snap ring 312, a convex point 313, a lower column sleeve 314, a second insulating cover plate 32, a separation plate 321, a ring part 322, a round part 323, a ring groove 324, an aluminum cover plate 33, a first snap ring 331, a convex ring 332 and a terminal 4.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front, back, outer and inner … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
As shown in fig. 1, 2, 3, 4, 5, and 6, a circular dc support capacitor with an insulating structure includes a top cover 3, a housing 2 for accommodating a core, and a terminal 4, wherein the top cover 3 covers the housing 2, the terminal 4 is led out from the top end of the top cover 3, and the top cover 3 includes a first insulating cover plate 31 for covering the terminal 4 and an aluminum cover plate 33 disposed on the periphery of the first insulating cover plate 31.
The utility model discloses a first insulating cover keeps apart two terminals 4, and keeps apart between with terminal 4 aluminium system apron 33 through first insulating cover plate 31, and then makes between two terminals 4 non-conductive for between terminal 4 and the aluminium system apron 33 non-conductive. It is comprehensive, the utility model discloses can have better heat dispersion through the heat conduction of aluminium system apron 33, simultaneously, the utility model discloses can have more excellent insulating properties through first insulating lid, and then have longer life.
In some embodiments, the first insulating cover 31 includes an upper post sleeve 311, the upper post sleeve 311 is sleeved on the terminal 4, and the terminal 4 is led out from the top end of the upper post sleeve 311. In this embodiment, since the upper column sleeve 311 can sleeve the side surface of the terminal 4, the exposed surface area of the terminal 4 can be reduced, and the insulation of the terminal 4 can be improved, therefore, the upper column sleeve 311 can further improve the insulation of the present invention.
In some embodiments, the first insulating cover plate 31 further includes a snap structure, the snap structure includes a protruding portion 313 and a snap ring, the protruding portion 313 and the snap ring form a snap groove, and the aluminum cover plate 33 includes a protruding ring 332, the protruding ring 332 is inserted into the snap groove, the protruding portion 313 abuts against the upper end of the protruding ring 332, and the snap ring abuts against the lower end of the protruding ring 332. In this embodiment, the first insulating cover plate 31 can be conveniently and quickly mounted on the aluminum cover plate 33 by the mounting personnel through the snap structure, and meanwhile, the first insulating cover plate can be conveniently detached from the aluminum cover plate 33 by the snap structure, so that the first insulating cover plate 31 or the aluminum cover plate 33 can be conveniently recycled and maintained. So buckle structure can improve the utility model discloses an installation is dismantled convenience, maintainability.
In some embodiments, the first insulating cover plate 31 is a plastic member, and further, the plastic member is made of epoxy resin. In this embodiment, the mold opening cost of the plastic part is reduced, and therefore, the first insulating cover plate 31 in the form of the plastic part can further reduce the manufacturing cost of the present invention.
In some embodiments, the aluminum cover 33 includes a first snap ring 331, and the first snap ring 331 is snapped on the top of the housing 2. In the present embodiment, the first retaining ring 331 is formed by crimping with a crimper, wherein the first retaining ring 331 includes a hook portion that is turned back into the top of the case 2, so that the top cover 3 and the case 2 have superior sealability. In addition, a rubber gasket is filled in the first retaining ring 331, wherein the first retaining ring 331 presses the rubber gasket, so that the sealing performance of the first retaining ring 331 can be improved.
In some embodiments, the top lid 3 further comprises a second insulating lid 32 that is fitted between the first insulating lid 31 and the aluminum lid 33. In this embodiment, since the second insulating cover plate 32 has an insulating property, the insulating properties of the present invention can be further improved by the second insulating cover plate.
In some embodiments, the second insulating cover plate 32 includes a ring portion 322, a circular portion 323, and a ring groove 324 between the ring portion 322 and the circular portion 323, and the first insulating cover plate 31 includes a second snap ring 312, and the second insulating cover plate 32 is snapped with the first insulating cover plate 31 by the second snap ring 312 and the ring groove 324. In this embodiment, the operator can easily and quickly snap the second insulating cover plate 32 to the first cover insulating cover plate by snapping the second snap ring 312 into the ring groove 324.
In some embodiments, the second insulating cover plate 32 further comprises a spacer 321, the spacer 321 being arranged between the two terminals 4. In this embodiment, the isolation board 321 can isolate the two terminals 4, and further make the two terminals 4 non-conductive, therefore, the isolation board 321 can further improve the insulation property of the present invention.
In some embodiments, the first insulating cover plate 31 further comprises a lower post sleeve 314, the lower post sleeve 314 extending into the housing 2 and abutting one side of the cartridge. In this embodiment, the core is hitched to lower column cover 314, can make external moisture flow through the clearance department between core and the casing 2 and get into the inside of casing 2, consequently, lower column cover 314 can further improve the utility model discloses a leakproofness.
Claims (9)
1. A circular direct current support capacitor with an insulation structure comprises a top cover (3), a shell (2) for accommodating a core, and a terminal (4), wherein the top cover (3) covers the shell (2), and the terminal (4) is led out from the top end of the top cover (3), and is characterized in that:
the top cover (3) comprises a first insulating cover plate (31) sleeved on the terminal (4) and an aluminum cover plate (33) arranged on the periphery of the first insulating cover plate (31).
2. The capacitor of claim 1, wherein: the first insulating cover plate (31) comprises an upper column sleeve (311), the upper column sleeve (311) is sleeved on the terminal (4), and the terminal (4) is led out from the top end of the upper column sleeve (311).
3. The capacitor of claim 1, wherein: the first insulating cover plate (31) further comprises a buckle structure, the buckle structure comprises a convex point (313) and a clamping ring, and the convex point (313) and the clamping ring form a clamping groove;
and the aluminum cover plate (33) comprises a convex ring (332), the convex ring (332) is inserted into the clamping groove, the salient points (313) are propped against the upper end of the convex ring (332), and the clamping ring is propped against the lower end of the convex ring (332).
4. A capacitor as claimed in any one of claims 1 to 3, wherein: the first insulating cover plate (31) is made of plastic.
5. The capacitor of claim 1, wherein: the aluminum cover plate (33) comprises a first buckling ring (331), and the first buckling ring (331) is buckled with the top of the shell (2).
6. The capacitor of claim 1, wherein: the top cover (3) further comprises a second insulating cover plate (32) which is sleeved between the first insulating cover plate (31) and the aluminum cover plate (33).
7. The capacitor of claim 6, wherein: the second insulating cover plate (32) comprises a ring part (322), a round part (323) and a ring groove (324) between the ring part (322) and the round part (323);
and the first insulating cover plate (31) comprises a second clamping ring (312), and the second insulating cover plate (32) is clamped with the first insulating cover plate (31) through the second clamping ring (312) and the annular groove (324).
8. The capacitor of any one of claims 6-7, wherein: the second insulating cover plate (32) further comprises a spacer plate (321), said spacer plate (321) being arranged between two of said terminals (4).
9. The capacitor of claim 1, wherein: the first insulating cover plate (31) further comprises a lower column sleeve (314), and the lower column sleeve (314) extends into the shell (2) and is abutted against one side of the core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921269984.8U CN210272084U (en) | 2019-08-06 | 2019-08-06 | Circular direct current supports electric capacity with insulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921269984.8U CN210272084U (en) | 2019-08-06 | 2019-08-06 | Circular direct current supports electric capacity with insulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210272084U true CN210272084U (en) | 2020-04-07 |
Family
ID=70016283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921269984.8U Active CN210272084U (en) | 2019-08-06 | 2019-08-06 | Circular direct current supports electric capacity with insulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210272084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111627709A (en) * | 2020-04-17 | 2020-09-04 | 姚佳 | Novel composite material capacitor cover plate |
-
2019
- 2019-08-06 CN CN201921269984.8U patent/CN210272084U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111627709A (en) * | 2020-04-17 | 2020-09-04 | 姚佳 | Novel composite material capacitor cover plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109768189B (en) | Power battery cover plate | |
| US10784610B2 (en) | Conductive connection structure, multifunctional high-voltage connector and battery product | |
| CN210272084U (en) | Circular direct current supports electric capacity with insulation system | |
| CN114927812A (en) | Cladding formula structure and battery top cap subassembly of battery top cap | |
| CN216850095U (en) | Battery pack with compact structure | |
| CN212322836U (en) | Capacitor with waterproof protection | |
| CN210956457U (en) | Insulating sleeved shell for high-voltage ceramic capacitor | |
| CN214900563U (en) | Motor inverter | |
| CN210075074U (en) | Direct current filtering structure, motor controller and vehicle | |
| CN211828498U (en) | Thin film capacitor with efficient heat dissipation | |
| CN210808102U (en) | Circuit board insulation structure and endoscope camera | |
| CN210576721U (en) | Waterproof, shielding and insulating integrated switching hole cover assembly | |
| CN212392229U (en) | Moisture-resistant functional diode | |
| CN213583983U (en) | Metal shell of power supply of aerospace and navigation module | |
| CN220856263U (en) | Dry-type transformer | |
| CN216850110U (en) | Electric connection assembly, cell cover plate and cell | |
| CN215680470U (en) | Waterproof button switch | |
| CN209266673U (en) | A kind of multi-function jack shell | |
| CN113707977B (en) | Pole type lithium battery cover plate and pole type lithium battery | |
| CN214797817U (en) | Plug, socket, contact mounting assembly and high-current connector | |
| CN217214784U (en) | Sealing connection structure and fuel cell high-voltage system | |
| CN211208245U (en) | Capacitor device and frequency converter | |
| CN215816313U (en) | Battery cell and energy storage device | |
| CN216624683U (en) | USB seat mounting structure | |
| CN210668104U (en) | Circular direct current supports condenser with seal structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |