CN109243824A - A kind of power capacitor equipped with explosion-protection equipment - Google Patents
A kind of power capacitor equipped with explosion-protection equipment Download PDFInfo
- Publication number
- CN109243824A CN109243824A CN201811013723.XA CN201811013723A CN109243824A CN 109243824 A CN109243824 A CN 109243824A CN 201811013723 A CN201811013723 A CN 201811013723A CN 109243824 A CN109243824 A CN 109243824A
- Authority
- CN
- China
- Prior art keywords
- explosion
- protection equipment
- shell
- safety plate
- connecting terminal
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 39
- 239000000463 material Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 7
- 239000011889 copper foil Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 230000035945 sensitivity Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/14—Protection against electric or thermal overload
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The present invention relates to a kind of power capacitors equipped with explosion-protection equipment, N-1 or N number of explosion-protection equipment are fixed in the middle part of the inner wall of two opposite flanks of shell, the middle part of each explosion-protection equipment is equipped with safety plate, v-notch is opened up in the middle part of safety plate, one end of safety plate passes through conducting wire respectively and connect with the electrode of a capacitor internal element, the other end is connect by conducting wire with a connecting terminal, and each connecting terminal is at most only connected with a safety plate, when capacitor internal element fails, generate bulk gas, and it is usually associated with high temperature, shell is heaved outward, safety plate is pulled off along v-notch, the connection of capacitor internal element and connecting terminal disconnects.Compared with prior art, explosion-protection equipment is installed middle part on the inner wall of the housing, sensitivity and high reliablity by the present invention；Explosion-protection equipment is fixed on shell two sides by self-plugging rivet, is broken safety plate by the bulging of shell, thus the connection between breaking capacitance device element electrode and connecting terminal.
Description
Technical field
The present invention relates to capacitor technology fields, and in particular to a kind of power capacitor equipped with explosion-protection equipment.
Background technique
Capacitor is a kind of device for storing charge, one layer of insulation dielectric is pressed from both sides between two blocks of metal electrodes, when in two gold medals
When adding voltage between category electrode, charge will be stored on electrode, so capacitor is energy-storage travelling wave tube.The work of capacitor in circuit
With very extensive, including coupling, filtering, resonance, integral, differential etc., power capacitor are being widely used in factory's power distribution system
System, residential area distribution system, municipal commercial building, traffic tunnel distribution system, case change, complete cabinet, distributed board outdoor etc. are each
In the case of kind；Existing capacitor is all the structure of fixed packaged type, and capacitor is during long-time use, it is easy to produce
Heat energy, it is easy to generate self-destruction, be damaged so as to cause other electronic components around capacitor by it, so that loss is big
The resource and cost of amount, or even whole system is made to paralyse.
Therefore it to be equipped with explosion-protection equipment to power capacitor, existing explosion-protection equipment structure is complex, and general installation
In case top, but such explosion-protection equipment deformation lags, and sensitivity is lower.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of dresses of high sensitivity
There is the power capacitor of explosion-protection equipment.
The purpose of the present invention can be achieved through the following technical solutions: a kind of power capacitor equipped with explosion-protection equipment,
The capacitor is equipped with shell, is equipped with 3 groups of internal elements in shell, independently does and insulate, and by different connection types, is formed single
The capacitor of phase, three-phase or three-phase and four-line, case top are equipped with N number of connecting terminal, and two electrodes of each internal element are distinguished
Connecting terminal connections different from two, and each connecting terminal is connect with the electrode of N-1 capacitor, the N is 2~4, special
Sign is, is fixed with N-1 or N number of explosion-protection equipment, each explosion-proof dress in the middle part of the inner wall of two opposite flanks of the shell
The middle part set is equipped with safety plate, opens up v-notch in the middle part of the safety plate, one end of the safety plate pass through respectively conducting wire with
The electrode connection of one internal element, the other end are connect by conducting wire with a connecting terminal, and the both ends of safety plate are lacked positioned at V-type
The two sides of mouth, and each connecting terminal is at most only connected with a safety plate, when capacitor fails, shell is interior to generate gas
Body, the shell are heaved outward, and safety plate is pulled off along v-notch, and the connection of capacitor and connecting terminal disconnects.The present invention
Explosion-protection equipment is arranged in the middle part of shell, this is because in a relatively closed shell, if internal occur internal element
Failure, can generate bulk gas, so that bulging occurs for shell side side wall, the place that bulging occurs at first is exactly housing central section, because
Portion in the housing is arranged in explosion-protection equipment by this, just can be broken safety plate in the first time failed, so that electric
Container and connecting terminal disconnect, avoid product from being persistently powered and be likely to occur explosion, fire situations such as, and in the middle part of safety plate
V-notch is set, can make safety plate that can be pulled off under lesser active force, high sensitivity.
Preferably, the material of the safety plate is copper foil.
Preferably, the copper foil with a thickness of 0.15~0.5mm.It is the good conductivity because of copper foil using copper foil, it will not
The electricity of capacitor is caused excessively to be lost；The thickness for selecting 0.15~0.5mm is because thickness is too small, and safety plate is easy quilt
The fusing of self-heating amount is also easy surprisingly to be pulled apart by other；And thickness is excessive, safety plate is not easy to be pulled off, so that explosion-proof dress
The sensitivity set is affected.
The explosion-protection equipment includes the bracket at both ends, two connecting plates for connecting two brackets and safety plate, described
One end of connecting plate is connect by rivet with bracket, and the other end is connect by rivet with safety plate, and two brackets are solid respectively
It is scheduled in the middle part of the inner wall of two opposite flanks of shell.
The bracket is L-shaped, and a line of bracket is fixedly connected by rivet with connecting plate, and another a line is fixed on shell
In the middle part of the inner wall of two opposite flanks of body.
The bracket is equipped with plain cushion by fixed in the middle part of self-plugging rivet and the inner wall of two opposite flanks of shell at riveting
And sealing ring.Plain cushion is set, is that sealing ring is set, is the phase in order to guarantee shell in order to which the connection of self-plugging rivet is more stable
To sealing, prevents air in shell from leaking and lead to the delay of bulging.
The material of the connecting plate is epoxy plate, using epoxy plate, be because of the material light weight, can be to avoid connecting plate
The weight of itself breaks safety plate；And epoxy plate good insulating, it prevents shell from charging, improves security performance.
Compared with prior art, the beneficial effects of the present invention are embodied in following several respects:
(1) middle part by explosion-protection equipment installation on the inner wall of the housing, high sensitivity；
(2) structure is simple, is broken safety plate by the bulging of shell, thus breaking inner element electrode and connecting terminal
Between connection；
(3) self-plugging rivet is used, easy for installation, safety is good.
Detailed description of the invention
Fig. 1 is the connection schematic diagram of capacitor and connecting terminal in embodiment 1；
Fig. 2 is the schematic diagram of explosion-protection equipment in embodiment 1；
Fig. 3 is the external structure schematic diagram of shell in embodiment 1；
Fig. 4 is that explosion-protection equipment is mounted on the intracorporal structural schematic diagram of shell in embodiment 1；
Fig. 5 is that explosion-protection equipment of the present invention is mounted on the intracorporal the schematic diagram of the section structure of shell；
Fig. 6 is the enlarged diagram of a-quadrant in Fig. 5.
Wherein, 1 is safety plate, and 2 be connecting plate, and 3 be bracket, and 4 be v-notch, and 5 be rivet, and 6 be shell, and 7 be core pulling riveting
Nail, 8 be conducting wire, and 9 be plain cushion, and 10 be sealing ring, and 11 be explosion-protection equipment, and 12 be internal element, and 13 be connecting terminal.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment carries out under the premise of the technical scheme of the present invention
Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment 1
A kind of power capacitor equipped with explosion-protection equipment, the capacitor are equipped with shell 6, and case top is equipped with 3 terminals
Sub 13 (as shown in Figure 3), equipped with 3 internal elements 12 in shell, two electrodes of each internal element 12 respectively with two not
It is connected with connecting terminal 13, and 13 son of each terminals is connect with the electrode of 2 internal elements 12, two opposite flanks of shell
2 explosion-protection equipments 11 (as shown in Figure 4) are fixed in the middle part of inner wall, the connection with internal element 12 and connecting terminal 13 is distinguished
As shown in Figure 1, two explosion-protection equipments 11 are connect respectively on the connecting terminal of A phase and C phase.The structure of explosion-protection equipment as shown in Fig. 2,
The safety plate 1 of bracket 3, middle part including both ends, two connecting plates 2 for connecting two brackets 3 and safety plate 1, connecting plate 2
One end connect with bracket 3 by rivet 5, the other end passes through rivet 5 and connect with safety plate 1, and the middle part of safety plate 1 opens up V-type
Notch 4, one end of safety plate 1 pass through an electrode of conducting wire 8 and internal element 12, and the other end connects one by conducting wire 8 and connects
Line terminals 13, as shown in Figure 5 (in figure only by taking one of explosion-protection equipment as an example), the material of safety plate 1 is copper foil, with a thickness of
0.4mm generates a large amount of hydrogen, shell 6 is heaved outward, and safety plate 1 is along V-type when the internal element 12 in shell 6 fails
Notch 4 is pulled off, and the connection between connecting terminal and capacitor disconnects.
Wherein, bracket 3 is L-shaped, and bracket 3 is fixed by self-plugging rivet 7 and the inner wall of 6 two opposite flanks of shell middle part,
And plain cushion 8 and sealing ring 9 are equipped at riveting, as shown in Figure 6.
The material of connecting plate 2 is epoxy plate, using epoxy plate, be because of the material light weight, can be 2 to avoid connecting plate
The weight of body breaks safety plate 1；And epoxy plate good insulating, it prevents shell 6 from charging, improves security performance.
Claims (7)
1. a kind of power capacitor equipped with explosion-protection equipment, which is equipped with shell, is equipped with 3 groups of internal elements in shell, solely
Vertical do is insulated, and by different connection types, forms the capacitor of single-phase, three-phase or three-phase and four-line, case top is equipped with N number of connect
Line terminals, the connecting terminal connections different from two, and each connecting terminal and N-1 respectively of two electrodes of each internal element
The electrode of capacitor connects, and the N is 2~4, which is characterized in that fixation is set in the middle part of the inner wall of two opposite flanks of the shell
There are N-1 or N number of explosion-protection equipment, the middle part of each explosion-protection equipment is equipped with safety plate, and V-type is opened up in the middle part of the safety plate and is lacked
Mouthful, one end of the safety plate passes through conducting wire respectively and connect with the electrode of an internal element, and the other end passes through conducting wire and one
Connecting terminal connection, the both ends of safety plate are located at the two sides of v-notch, and each connecting terminal at most only connects with a safety plate
It connects, when capacitor fails, generation gas, the shell are heaved outward in shell, and safety plate is pulled off along v-notch,
The connection of capacitor and connecting terminal disconnects.
2. a kind of power capacitor equipped with explosion-protection equipment according to claim 1, which is characterized in that the safety plate
Material be copper foil.
3. a kind of power capacitor equipped with explosion-protection equipment according to claim 2, which is characterized in that the thickness of the copper foil
Degree is 0.15~0.5mm.
4. a kind of power capacitor equipped with explosion-protection equipment according to claim 1, which is characterized in that the explosion-protection equipment
Bracket including both ends, two connecting plates for connecting two brackets and safety plate, one end of the connecting plate passes through rivet
It is connect with bracket, the other end is connect by rivet with safety plate, and two brackets pass through self-plugging rivet respectively and are fixed on shell
In the middle part of the inner wall of two opposite flanks.
5. a kind of power capacitor equipped with explosion-protection equipment according to claim 4, which is characterized in that the bracket is in L
Type, and a line of bracket is fixedly connected by rivet with connecting plate, another a line is fixed on shell two by self-plugging rivet
In the middle part of the inner wall of opposite flank.
6. a kind of power capacitor equipped with explosion-protection equipment according to claim 4 or 5, which is characterized in that the bracket
By fixed in the middle part of self-plugging rivet and the inner wall of two opposite flanks of shell, and plain cushion and sealing ring are equipped at riveting.
7. a kind of power capacitor equipped with explosion-protection equipment according to claim 4, which is characterized in that the connecting plate
Material is epoxy plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811013723.XA CN109243824A (en) | 2018-08-31 | 2018-08-31 | A kind of power capacitor equipped with explosion-protection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811013723.XA CN109243824A (en) | 2018-08-31 | 2018-08-31 | A kind of power capacitor equipped with explosion-protection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109243824A true CN109243824A (en) | 2019-01-18 |
Family
ID=65059947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811013723.XA Pending CN109243824A (en) | 2018-08-31 | 2018-08-31 | A kind of power capacitor equipped with explosion-protection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109243824A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110706922A (en) * | 2019-09-28 | 2020-01-17 | 安徽旭峰电容器有限公司 | Circuit break protection device of low-voltage self-healing parallel capacitor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60157296A (en) * | 1984-01-26 | 1985-08-17 | 松下電器産業株式会社 | Safety device |
| SU1394255A1 (en) * | 1986-07-14 | 1988-05-07 | Всесоюзный Научно-Исследовательский Проектно-Конструкторский И Технологический Институт Силового Конденсаторостроения | Electric capacixor |
| JPH08153644A (en) * | 1994-11-28 | 1996-06-11 | Marcon Electron Co Ltd | Protective device built-in capacitor |
| JPH11354369A (en) * | 1998-06-12 | 1999-12-24 | Matsushita Electric Ind Co Ltd | Capacitor embedded in safety device |
| CN201392735Y (en) * | 2009-04-09 | 2010-01-27 | 江苏现代电力电容器有限公司 | Low-voltage electricity capacitor internally built with reactor |
| KR101214604B1 (en) * | 2012-08-09 | 2012-12-21 | 김선화 | Safety of capacitor |
| CN203573822U (en) * | 2013-12-11 | 2014-04-30 | 德力西电气有限公司 | Elliptical non-explosive capacitor |
| CN104868486A (en) * | 2015-06-03 | 2015-08-26 | 德力西电气有限公司 | Intelligent capacitor and explosion-proof mechanism therefor |
| CN205645538U (en) * | 2016-05-27 | 2016-10-12 | 指月集团有限公司 | Pressure protector and condenser excessively of condenser |
| CN208690107U (en) * | 2018-08-31 | 2019-04-02 | 德力西电气有限公司 | A kind of power capacitor equipped with explosion-protection equipment |
-
2018
- 2018-08-31 CN CN201811013723.XA patent/CN109243824A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60157296A (en) * | 1984-01-26 | 1985-08-17 | 松下電器産業株式会社 | Safety device |
| SU1394255A1 (en) * | 1986-07-14 | 1988-05-07 | Всесоюзный Научно-Исследовательский Проектно-Конструкторский И Технологический Институт Силового Конденсаторостроения | Electric capacixor |
| JPH08153644A (en) * | 1994-11-28 | 1996-06-11 | Marcon Electron Co Ltd | Protective device built-in capacitor |
| JPH11354369A (en) * | 1998-06-12 | 1999-12-24 | Matsushita Electric Ind Co Ltd | Capacitor embedded in safety device |
| CN201392735Y (en) * | 2009-04-09 | 2010-01-27 | 江苏现代电力电容器有限公司 | Low-voltage electricity capacitor internally built with reactor |
| KR101214604B1 (en) * | 2012-08-09 | 2012-12-21 | 김선화 | Safety of capacitor |
| CN203573822U (en) * | 2013-12-11 | 2014-04-30 | 德力西电气有限公司 | Elliptical non-explosive capacitor |
| CN104868486A (en) * | 2015-06-03 | 2015-08-26 | 德力西电气有限公司 | Intelligent capacitor and explosion-proof mechanism therefor |
| CN205645538U (en) * | 2016-05-27 | 2016-10-12 | 指月集团有限公司 | Pressure protector and condenser excessively of condenser |
| CN208690107U (en) * | 2018-08-31 | 2019-04-02 | 德力西电气有限公司 | A kind of power capacitor equipped with explosion-protection equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110706922A (en) * | 2019-09-28 | 2020-01-17 | 安徽旭峰电容器有限公司 | Circuit break protection device of low-voltage self-healing parallel capacitor |
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