CN202334266U - Middle-high-frequency inverse power supply discharging-prevention bus structure - Google Patents
Middle-high-frequency inverse power supply discharging-prevention bus structure Download PDFInfo
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- CN202334266U CN202334266U CN2011204780593U CN201120478059U CN202334266U CN 202334266 U CN202334266 U CN 202334266U CN 2011204780593 U CN2011204780593 U CN 2011204780593U CN 201120478059 U CN201120478059 U CN 201120478059U CN 202334266 U CN202334266 U CN 202334266U
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Abstract
The utility model relates to a middle-high-frequency inverse power supply discharging-prevention bus structure, which comprises an electrolysis capacitance series group which is formed by serially connecting two electrolysis capacitances through a series bus, wherein each electrolysis capacitance is respectively provided with two screws, a cathode of the electrolysis capacitance series group is connected with a cathode bus, an anode of the electrolysis capacitance series group is connected with an anode connecting plate and an anode bus, a first insulation plate is arranged between the anode bus and the cathode bus, the area of the first insulation plate is larger than the overlapped area of the anode bus, the cathode bus and the series bus when being flush joined, a plastic sheet is arranged above the series bus, a second insulation plate is arranged above the anode bus, and the area of the second insulation plate is larger than the anode bus. When the middle-high-frequency inverse power supply discharging-prevention bus structure is applied in the field with existence of conductive dust and conductive fibers, the phenomenon that a creepage distance between every two adjacent buses is reduced or short-circuit exists between every two adjacent buses can be prevented.
Description
Technical field
The utility model relates to the anti-discharge of a kind of medium-high frequency inverter bus structure.
Background technology
Inversion bus structure in the medium-high frequency inverter mainly is in order to reduce the distributed inductance of inversion module and electrochemical capacitor, to avoid the higher-order of oscillation when inverse switch, causing inversion module to damage.The general smooth installation electrochemical capacitor of both positive and negative polarity bus that adopts inversion module is provided with epoxy insulating board in the middle of the positive and negative electrode inlet highway and plays buffer action.Above mounting means; The electric clearance and the creepage distance of inversion module both positive and negative polarity inlet highway and electrochemical capacitor interpolar are less; Exist in environment for use under the situation of conduction dust or conductive fiber (like carbon felt fiber), fashionable when wafing of the accumulation of conduction dust or conductive fiber, can cause the creepage distance between bus to diminish or short circuit; Thereby cause between bus or the both positive and negative polarity of electrochemical capacitor between will cause discharge, cause inversion partly to damage.
The utility model content
The utility model technical problem to be solved is: provide a kind of when in the occasion that has conduction dust and conductive fiber, using, can not occur also that creepage distance between bus diminishes or the anti-bus structure that discharges of medium-high frequency inverter of short circuit phenomenon.
For addressing the above problem; The technical scheme that the utility model adopts is: the anti-discharge of medium-high frequency inverter bus structure; Comprise: through the electrochemical capacitor series that the series connection bus is connected in series and forms, be respectively arranged with two screws by two electrochemical capacitors on each electrochemical capacitor, the negative pole of electrochemical capacitor series is connected with the negative pole bus; The positive pole of electrochemical capacitor series is connected with positive electrode bus with anodal connecting plate; Be provided with first insulation board between positive electrode bus and the negative pole bus, the area of first insulation board is greater than the coincidence area of positive electrode bus, negative pole bus and the smooth installation of series connection bus, and the top of said series connection bus is provided with plastic sheet; The top of positive electrode bus is provided with second insulation board, and the area of second insulation board is greater than positive electrode bus.
The outer cover of said series connection bus is equipped with heat-shrinkable T bush.
The outer cover of said screw is provided with insulating base, and the outer cover of insulating base is provided with insulating case.
The beneficial effect of the utility model is: the anti-discharge of above-mentioned medium-high frequency inverter bus structure; Distributed inductance and distributed capacitance have been reduced; Can well be applicable to the medium-high frequency inverter; Whole bus structure has second epoxy plate+positive electrode bus, anodal connecting plate+first epoxy plate+negative pole bus, plastic sheet, series connection bus totally four layers of formation, isolates positive electrode bus and negative pole bus fully through insulating base, insulating case, plastic sheet, isolates the series connection bus fully with negative pole bus and anodal connecting plate simultaneously; Effectively stop conduction accumulation of dust or wafing of conductive fiber, reduce power failure into the electric discharge phenomena of the inversion bus that causes.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the plan structure sketch map of Fig. 1;
Fig. 3 is the plan structure sketch map of removing among Fig. 1 behind insulating case, screw, insulating base, second insulation board;
Fig. 4 is the plan structure sketch map of removing among Fig. 1 behind insulating case, screw, insulating base, second insulation board, positive electrode bus, first insulation board;
Fig. 5 is the plan structure sketch map of removing among Fig. 1 behind insulating case, screw, insulating base, second insulation board, positive electrode bus, first insulation board, the plastic sheet;
Among the figure: 1, electrochemical capacitor, 2, the negative pole bus, 3, the series connection bus, 4, anodal connecting plate, 5, plastic sheet, 6, first insulation board, 7, positive electrode bus, 8, second insulation board, 9, insulating base, 10, screw, 11, insulating case.
Embodiment
Through specific embodiment the anti-discharge of the utility model medium-high frequency inverter bus structure is done further to describe in detail below.
Like Fig. 1, Fig. 2, shown in Figure 3, the anti-discharge of medium-high frequency inverter bus structure comprises: the electrochemical capacitor series that is connected in series and forms through series connection bus 3 by two electrochemical capacitors 1; Be respectively arranged with two screws 10 on each electrochemical capacitor 1, as shown in Figure 5, the negative pole of electrochemical capacitor series is connected with negative pole bus 2; The positive pole of electrochemical capacitor series is connected with positive electrode bus 7 with anodal connecting plate 4; Be provided with the coincidence area of the area of first insulation board, 6, the first insulation boards 6 between positive electrode bus 7 and the negative pole bus 2, increased the creepage distance between positive electrode bus 7 and the negative pole bus 2 greater than positive electrode bus 7, negative pole bus 2 and the 3 smooth installations of series connection bus; As shown in Figure 4; The top of said series connection bus 3 is provided with plastic sheet 5, increases the electric clearance between electrochemical capacitor 1 positive pole and the negative pole, prevents that conductive fiber from wafing between the positive and negative electrode of electrochemical capacitor 1 discharge fault to take place; The top of positive electrode bus 7 is provided with second insulation board 8; The area of second insulation board 8 covers positive electrode bus 7 fully, isolates greater than positive electrode bus 7, thereby has avoided the accumulation of conduction dust between positive electrode bus 7 and negative pole bus 2.
The outer cover of said series connection bus 3 is equipped with heat-shrinkable T bush; After heat-shrinkable T bush puts in place through heat shrink; With special tooling heat-shrinkable T bush is carried out perforate, be positioned at the external diameter of the heat-shrinkable T bush opening diameter of series connection bus 3 upper surfaces, thereby screw 10 can be passed greater than screw 10; Be positioned at the diameter of the heat-shrinkable T bush opening diameter of series connection bus 3 lower surfaces, make the metallic conduction position of series connection bus 3 expose and closely contact with negative pole with the positive pole of electrochemical capacitor 1 greater than screw 10 fixed terminals.
The outer cover of said screw 10 is provided with insulating base 9; Insulating base 9 be designed to the concave structure, the head of screw 10 is arranged in the cavity of insulating base 9, the outer cover of insulating base 9 is provided with insulating case 11; The screw 10 of electrochemical capacitor 1 different poles is isolated fully; Avoided the discharge between electrochemical capacitor 1 hold-down screw 10, the external diameter of insulating case 11 has been blocked the route of entry of dust greater than the installing hole that second epoxy plate is installed.
The anti-discharge of above-mentioned medium-high frequency inverter bus structure; Distributed inductance and distributed capacitance have been reduced; Can well be applicable to the medium-high frequency inverter; Whole bus structure has second epoxy plate+positive electrode bus 7, anodal connecting plate 4+ first epoxy plate+negative pole bus 2, plastic sheet 5, series connection bus 3 totally four layers of formation, isolates positive electrode bus 7 and negative pole bus 2 fully through insulating base 9, insulating case 11, plastic sheet 5, isolates series connection bus 3 and negative pole bus 2 and anodal connecting plate 4 fully simultaneously; Effectively stop conduction accumulation of dust or wafing of conductive fiber, reduce power failure into the electric discharge phenomena of the inversion bus that causes.
The above embodiments are the principle and the effect thereof of illustrative the invention only, and the embodiment of part utilization, but not is used to limit the utility model; Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model creation design, can also make some distortion and improvement, these all belong to the protection range of the utility model.
Claims (3)
1. the medium-high frequency inverter is prevented the discharge bus structure; Comprise: by two electrochemical capacitors through the series connection bus electrochemical capacitor series that is connected in series and forms; Be respectively arranged with two screws on each electrochemical capacitor; The negative pole of electrochemical capacitor series is connected with the negative pole bus, and the positive pole of electrochemical capacitor series is connected with positive electrode bus with anodal connecting plate, is provided with first insulation board between positive electrode bus and the negative pole bus; It is characterized in that: the area of said first insulation board is greater than the coincidence area of positive electrode bus, negative pole bus and the smooth installation of series connection bus; The top of series connection bus is provided with plastic sheet, and the top of positive electrode bus is provided with second insulation board, and the area of second insulation board is greater than positive electrode bus.
2. the anti-discharge of medium-high frequency inverter according to claim 1 bus structure, it is characterized in that: the outer cover of said series connection bus is equipped with heat-shrinkable T bush.
3. the anti-discharge of medium-high frequency inverter according to claim 1 and 2 bus structure, it is characterized in that: the outer cover of said screw is provided with insulating base, and the outer cover of insulating base is provided with insulating case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204780593U CN202334266U (en) | 2011-11-28 | 2011-11-28 | Middle-high-frequency inverse power supply discharging-prevention bus structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204780593U CN202334266U (en) | 2011-11-28 | 2011-11-28 | Middle-high-frequency inverse power supply discharging-prevention bus structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202334266U true CN202334266U (en) | 2012-07-11 |
Family
ID=46446231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204780593U Expired - Fee Related CN202334266U (en) | 2011-11-28 | 2011-11-28 | Middle-high-frequency inverse power supply discharging-prevention bus structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202334266U (en) |
-
2011
- 2011-11-28 CN CN2011204780593U patent/CN202334266U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20131128 |