CN112563029A - Electrical hard-connected cylindrical three-phase low-voltage power capacitor - Google Patents
Electrical hard-connected cylindrical three-phase low-voltage power capacitor Download PDFInfo
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- CN112563029A CN112563029A CN202011515163.5A CN202011515163A CN112563029A CN 112563029 A CN112563029 A CN 112563029A CN 202011515163 A CN202011515163 A CN 202011515163A CN 112563029 A CN112563029 A CN 112563029A
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- 239000003990 capacitor Substances 0.000 title claims abstract description 94
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 162
- 229910052802 copper Inorganic materials 0.000 claims abstract description 162
- 239000010949 copper Substances 0.000 claims abstract description 162
- 238000003825 pressing Methods 0.000 claims abstract description 15
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 14
- 239000010931 gold Substances 0.000 claims description 14
- 229910052737 gold Inorganic materials 0.000 claims description 14
- 238000005507 spraying Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 239000004033 plastic Substances 0.000 claims description 13
- 238000004804 winding Methods 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002985 plastic film Substances 0.000 claims description 6
- 229920006255 plastic film Polymers 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 238000005476 soldering Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/38—Multiple capacitors, i.e. structural combinations of fixed capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
- H01G4/236—Terminals leading through the housing, i.e. lead-through
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/32—Wound capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention discloses an electrical hard-connection cylindrical three-phase low-voltage power capacitor which comprises a first capacitor roll, a second capacitor roll, a third capacitor roll, a first connecting copper strip, a second connecting copper strip, a third connecting copper strip, a fourth connecting copper strip, a first contact element, a second contact element, a third contact element, a fourth contact element, a lower end cover and a clamping and pressing element. According to the invention, full-electrical hard connection is realized by connecting the copper bar and the contact element, the hard parts are directly sleeved with each other during installation operation, additional threading is not required, the installation is simple, the requirement on the skill of workers is not high, and the production efficiency and the product quality of the low-voltage power capacitor are improved.
Description
Technical Field
The invention relates to a low-voltage power capacitor, in particular to an electrical hard-connection cylindrical three-phase low-voltage power capacitor, belonging to the field of power capacitors.
Background
The low-voltage power capacitor is used for reactive compensation of a low-voltage distribution power grid, and has a wide range and a large quantity, so that the power factor of the low-voltage distribution power grid is improved, the loss of the power grid is reduced, and the output of the power grid and the quality of electric energy are improved. Cylindrical three-phase low-voltage power capacitors are widely used due to the characteristics of easy and balanced heat dissipation, reasonable structure, small volume, easy installation and the like.
The existing electrical connection in the cylindrical three-phase low-voltage power capacitor generally adopts a mode of soldering the flexible lead and the gold-sprayed layer on the end face of the coil of the flexible lead and the capacitor, and a mode of soldering the flexible lead and the gold-sprayed layer, so that the operation process is complicated, the environment is polluted, the requirement on the skill of an operator is high, the consistency of the welding quality is poor, and the quality cannot be ensured. Meanwhile, the interior of the capacitor is usually assembled by a plurality of capacitor rolls, and the flexible lead influences subsequent processes such as filling and sealing of a medium material during product assembly, so that the production efficiency and the quality of the product are influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing an electrical hard-connection cylindrical three-phase low-voltage power capacitor which has the characteristics of simple structure, convenience in installation and reliable performance
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides an electrical hard connected's cylindric three-phase formula low voltage power capacitor which characterized in that: the capacitor comprises a first capacitor roll, a second capacitor roll, a third capacitor roll, a first connecting copper strip, a second connecting copper strip, a third connecting copper strip, a fourth connecting copper strip, a first contact element, a second contact element, a third contact element, a fourth contact element, a lower end cover and a clamping and pressing element, wherein the upper ends of the first connecting copper strip, the second connecting copper strip, the third connecting copper strip and the fourth connecting copper strip penetrate through the clamping and pressing element, the lower end of the first connecting copper strip is connected with the first contact element, the lower end of the second connecting copper strip is connected with the second contact element, the lower end of the third connecting copper strip is connected with the third contact element, the lower end of the fourth connecting copper strip is connected with the fourth contact element, the first capacitor roll is arranged between the first contact element and the second contact element, the second capacitor roll is arranged between the second contact element and the third contact element, the third capacitor roll is arranged between the third contact element and the fourth contact element, the first connecting copper strip, the second connecting copper strip, the third connecting copper strip and the fourth connecting copper strip are arranged in a winding core pipe in the middle of the first capacitor roll, the second capacitor roll and the third capacitor roll.
Further, first contact, second contact, third contact and fourth contact contain the copper sheet, the perforation, sharp object, centre bore and recess, perforation evenly distributed is on the copper sheet, the sharp object of first contact all is located the upside of copper sheet, the sharp object of second contact and third contact is located the upper and lower both sides of copper sheet, the sharp object of fourth contact is located the downside of copper sheet, every perforation corresponds sets up two at least sharp objects and same fenestrate sharp object orientation the same, the centre bore is located the copper sheet center, the recess sets up on the copper sheet and the recess radially sets up along the centre bore.
Further, the first contact member and the fourth contact member comprise at least two through holes, the second contact member and the third contact member comprise at least four through holes, and sharp objects of the at least four through holes are distributed to two sides of the second contact member and the third contact member.
Further, the first capacitor roll, the second capacitor roll and the third capacitor roll respectively comprise a roll core pipe, a plastic film with a metal coating, an upper gold spraying layer and a lower gold spraying layer, the plastic film with the metal coating is wound on the roll core pipe to form the capacitor roll, the upper gold spraying layer is arranged on the upper side surface of the capacitor roll, and the lower gold spraying layer is arranged on the lower side surface of the capacitor roll.
Furthermore, the first connecting copper strip, the second connecting copper strip, the third connecting copper strip and the fourth connecting copper strip are vertically arranged, the lower ends of the first connecting copper strip, the second connecting copper strip, the third connecting copper strip and the fourth connecting copper strip are perpendicularly bent outwards, bent parts of the lower ends of the first connecting copper strip, the second connecting copper strip, the third connecting copper strip and the fourth connecting copper strip are sequentially welded in grooves of the first contact element, the second contact element, the third contact element and the fourth contact element respectively, and the upper ends of at least three of the first connecting copper strip, the second connecting copper strip, the third connecting copper strip and the fourth connecting copper strip are bent outwards and then penetrate through the clamping and pressing piece.
Furthermore, the clamping and pressing piece comprises a spring piece and a plastic block, the spring piece is injection-molded on the plastic block and is located on the outer side edge of the plastic block, the outer side of the spring piece is provided with a claw-shaped spring edge, the claw-shaped spring edge is warped upwards, a boss protruding upwards is arranged in the middle of the upper plane of the plastic block, two cylinders and one long cylinder are arranged on the boss, and the two cylinders and the long cylinder are distributed in a triangular shape.
Furthermore, a plurality of material through holes are formed in the spring piece and are distributed along the circumferential direction of the spring piece, a plurality of side material through holes are formed in the side face of the boss, and the side material through holes are distributed along the circumferential direction of the side face of the boss.
Further, the outside border of lower end cover is provided with vertical ascending surrounding edge.
Furthermore, the outer sides of the first connecting copper strip, the second connecting copper strip, the third connecting copper strip and the fourth connecting copper strip are provided with insulating soft sheaths.
Further, still contain the tighrening rod, the lower extreme of tighrening rod is provided with down the screw, the upper end of tighrening rod is provided with the screw, the centre of bottom end cover is provided with the screw hole, the centre of card casting die is provided with fastening through-hole, the tighrening rod lower extreme is through screw fixation in the bottom end cover screw hole down, the tighrening rod upper end is passed behind the card casting die fastening through-hole and is compressed tightly the card casting die downwards through last screw and fastening nut.
Compared with the prior art, the invention has the following advantages and effects: the capacitor coils of the cylindrical three-phase low-voltage power capacitor which is electrically and hard connected realize full electrical and hard connection through the connecting copper bars and the contact elements, and the hard parts are directly sleeved with each other during installation operation without additional threading, so that the installation is simple, the requirement on the skill of workers is not high, the production efficiency and the quality of the low-voltage power capacitor are improved, and the environmental pollution caused by tin soldering is avoided.
Drawings
Fig. 1 is a schematic diagram of an electrically hard-wired cylindrical three-phase low-voltage power capacitor of the present invention.
Fig. 2 is a schematic view of a first contact and a fourth contact of the present invention.
Fig. 3 is a schematic view of the second contact and the third contact of the present invention.
FIG. 4 is a schematic view of a crimp of the present invention.
Fig. 5 is a schematic view of a fastening rod of the present invention.
Detailed Description
To elaborate on technical solutions adopted by the present invention to achieve predetermined technical objects, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, it is obvious that the described embodiments are only partial embodiments of the present invention, not all embodiments, and technical means or technical features in the embodiments of the present invention may be replaced without creative efforts, and the present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.
As shown in fig. 1, the electrical hard connection cylindrical three-phase low-voltage power capacitor of the present invention comprises a first capacitor roll 1, a second capacitor roll 2, a third capacitor roll 3, a first connecting copper bar 4, a second connecting copper bar 5, a third connecting copper bar 6, a fourth connecting copper bar 7, a first contact 8, a second contact 9, a third contact 10, a fourth contact 11, a lower end cap 12 and a clamping piece 13, wherein the upper ends of the first connecting copper bar 4, the second connecting copper bar 5, the third connecting copper bar 6 and the fourth connecting copper bar 7 pass through the clamping piece 13, the lower end of the first connecting copper bar 4 is connected with the first contact 8, the lower end of the second connecting copper bar 5 is connected with the second contact 9, the lower end of the third connecting copper bar 6 is connected with the third contact 10, the lower end of the fourth connecting copper bar 7 is connected with the fourth contact 11, the first capacitor roll 1 is disposed between the first contact 8 and the second contact 9, the second capacitor roll 2 is disposed between the second contact 9 and the third contact 10, the third capacitor roll 3 is disposed between the third contact 10 and the fourth contact 11, and the first connecting copper bar 4, the second connecting copper bar 5, the third connecting copper bar 6, and the fourth connecting copper bar 7 are disposed in the winding tube 16 among the first capacitor roll 1, the second capacitor roll 2, and the third capacitor roll 3.
As shown in fig. 2 and 3, the first contact 8, the second contact 9, the third contact 10 and the fourth contact 11 comprise copper sheets 19, through holes 20, sharp objects 21, a central hole 22 and grooves 23, the thickness of the copper sheets is not more than 1.5mm, the through holes 20 are uniformly distributed on the copper sheets 19, the sharp objects 21 of the first contact 8 are all positioned on the upper side of the copper sheets 19, the sharp objects of the second contact 9 and the third contact 10 are positioned on the upper side and the lower side of the copper sheets 19, the sharp objects 21 of the fourth contact 11 are positioned on the lower side of the copper sheets 19, at least two sharp objects 21 are correspondingly arranged on each through hole 20, the sharp objects 21 of the same through hole 20 are oriented in the same direction, the central hole 22 is positioned in the center of the copper sheets 19, the grooves 23 are arranged on the copper sheets 19, and the grooves 23 are arranged along the radial direction of the central. The sharp objects 21 are directly distributed in the through holes 20, the structure is convenient to process, only a cross-shaped knurling tool needs to be punched in the through holes, then the cylindrical punching is carried out at the through hole positions, and the through holes 20 and the sharp objects 21 can be simultaneously processed. The diameter of the central hole 22 is larger than the outer diameter of the winding tube 16. The contact piece has simple shape, convenient processing, small overall shape and material saving, and the through holes and the sharp objects are uniformly distributed on the whole contact piece, thus having good contact effect.
The first contact 8 and the fourth contact 11 comprise at least two perforations 20, the second contact 9 and the third contact 10 comprise at least four perforations, and the spikes 21 of the at least four perforations 20 are distributed to both sides of the second contact 9 and the third contact 10. The sharp objects 21 are used to embed in the upper and lower metallization layers 17, 18 of the capacitor roll to enhance contact and reduce contact resistance.
The first capacitor roll 1, the second capacitor roll 2 and the third capacitor roll 3 respectively comprise a winding core tube 16, a plastic film with a metal coating, an upper gold spraying layer 17 and a lower gold spraying layer 18, wherein the plastic film with the metal coating is wound on the winding core tube 16 to form the capacitor roll, the upper gold spraying layer 17 is arranged on the upper side surface of the capacitor roll, and the lower gold spraying layer 18 is arranged on the lower side surface of the capacitor roll.
The first connecting copper bar 4, the second connecting copper bar 5, the third connecting copper bar 6 and the fourth connecting copper bar 7 are vertically arranged, and the diameters of the four copper bars are larger than 2 mm. The lower ends of the first connecting copper strip 4, the second connecting copper strip 5, the third connecting copper strip 6 and the fourth connecting copper strip 7 are perpendicularly bent outwards, the bent parts of the lower ends of the first connecting copper strip 4, the second connecting copper strip 5, the third connecting copper strip 6 and the fourth connecting copper strip 7 are respectively and sequentially welded in the grooves 23 of the first contact element 8, the second contact element 9, the third contact element 10 and the fourth contact element 11, and the upper ends of at least three connecting copper strips of the first connecting copper strip 4, the second connecting copper strip 5, the third connecting copper strip 6 and the fourth connecting copper strip 7 penetrate through the clamping and pressing element 13 after being bent outwards, so that the distance between the upper ends of the copper strips is enlarged, and the installation is convenient. The connecting copper bar is directly welded in the groove of the contact element, and compared with the welding of a flexible conductor, the connecting copper bar is convenient to operate and firm in welding, and cold joint is not easy to generate.
As shown in fig. 4, the holding member 13 comprises a spring plate 24 and a plastic block 25, the spring plate 24 is injection molded on the plastic block 25 and is located at the outer edge of the plastic block 25, the outer side of the spring plate 24 is provided with a claw-shaped spring edge 26, and the claw-shaped spring edge 26 is warped upwards, the outer diameter of the claw-shaped spring edge 26 is slightly larger than the inner diameter of the capacitor shell barrel, so that the holding member does not move upwards after being installed in place. The middle of the upper side surface of the plastic block 25 is provided with a boss 29 protruding towards the upper side, the boss 29 is provided with two cylinders 32 and a long cylinder 33, the two cylinders 32 and the long cylinder 33 are distributed in a triangular mode, and at least two connecting copper strips can be installed on the long cylinder 33. During installation, the lower bottom surface 28 of the plastic block 25 of the catch 13 is pressed against the upper side of the fourth contact 11, and the top surface 30 is connected to an external press.
A plurality of material passing holes 27 are formed in the spring piece 24, the material passing holes 27 are distributed along the circumferential direction of the spring piece 24, a plurality of side material passing holes 34 are formed in the side face 31 of the boss 29, the side material passing holes 34 are distributed along the circumferential direction of the side face of the boss 29, the material passing holes 27 and the side material passing holes 34 are used for pouring insulating fillers downwards when the capacitor is manufactured, and the operation is convenient.
The outer edge of the lower end cover 12 is provided with a vertical upward surrounding edge 35. The lower end cap 12 and the surrounding edge 35 are used for insulating the lower gold-sprayed layer 18 of the first capacitor roll 1 from the housing.
And insulating soft sheaths 14 are arranged on the outer sides of the first connecting copper strip 4, the second connecting copper strip 5, the third connecting copper strip 6 and the fourth connecting copper strip 7.
As shown in fig. 5, a lower screw 40 is provided at the lower end of the fastening rod 38, an upper screw 41 is provided at the upper end of the fastening rod 38, a screw hole 36 is provided in the middle of the upper side of the lower end cap 12, a fastening screw hole 37 is provided in the middle of the lower side of the clamping member 13, the lower end of the fastening rod 38 is fixed in the screw hole 36 of the lower end cap by the lower screw 40, and the clamping member is pressed by the upper screw 41 and the fastening nut 39 after the upper end of the fastening rod 38 passes through the clamping member fastening screw hole 37.
The assembly process of the electrical hard-connection cylindrical three-phase low-voltage power capacitor comprises the following steps: the first connecting copper strip 4, the second connecting copper strip 5, the third connecting copper strip 6 and the fourth connecting copper strip 7 are respectively welded with the first contact element 8, the second contact element 9, the third contact element 10 and the fourth contact element 11 at the groove 22; a first contact element 8 welded with a first connecting copper strip 4 is arranged in a lower end cover 12, a first capacitor roll 1 is sleeved on the first connecting copper strip 4, a second contact element 9 welded with a second connecting copper strip 5 is arranged, a second capacitor roll 2 is sleeved on the first connecting copper strip 4 and the second connecting copper strip 5, a third contact element 10 welded with a third connecting copper strip 6 is arranged, a third capacitor roll 3 is sleeved on the first connecting copper strip 4, the second connecting copper strip 5 and the third connecting copper strip 6, and a fourth contact element 11 welded with a fourth connecting copper strip 7 is arranged; the first connecting copper strip 4, the second connecting copper strip 5, the third connecting copper strip 6 and the fourth connecting copper strip 7 are sleeved with a clamping and pressing piece 13, a pressing head of a pressing machine is used for pressing down from the upper part of the clamping and pressing piece 13 until a sharp object 21 is embedded into an upper gold spraying layer 17 and a lower gold spraying layer 18 of a corresponding capacitor coil; the fastening rod 38 is inserted into the fastening screw hole 37 of the holding member 13 and the winding core tube 16, the lower fastening screw 40 is screwed into the screw hole 36, and the fastening nut 39 is fitted over the upper fastening screw 41 and tightened to form an internal assembly of an electrically hard wired cylindrical low voltage power capacitor which is not disassembled. And finally, placing the internal assembly into the capacitor shell for encapsulating.
The capacitor coils of the cylindrical three-phase low-voltage power capacitor which is electrically and hard connected realize full electrical and hard connection through the connecting copper strips and the contact elements, and the hard parts are directly sleeved with each other during installation operation without additional threading, so that the installation is simple, the requirement on the skill of workers is not high, and the production efficiency of the low-voltage power capacitor is improved.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides an electrical hard connected's cylindric three-phase formula low voltage power capacitor which characterized in that: the capacitor comprises a first capacitor roll, a second capacitor roll, a third capacitor roll, a first connecting copper strip, a second connecting copper strip, a third connecting copper strip, a fourth connecting copper strip, a first contact element, a second contact element, a third contact element, a fourth contact element, a lower end cover and a clamping and pressing element, wherein the upper ends of the first connecting copper strip, the second connecting copper strip, the third connecting copper strip and the fourth connecting copper strip penetrate through the clamping and pressing element, the lower end of the first connecting copper strip is connected with the first contact element, the lower end of the second connecting copper strip is connected with the second contact element, the lower end of the third connecting copper strip is connected with the third contact element, the lower end of the fourth connecting copper strip is connected with the fourth contact element, the first capacitor roll is arranged between the first contact element and the second contact element, the second capacitor roll is arranged between the second contact element and the third contact element, the third capacitor roll is arranged between the third contact element and the fourth contact element, the first connecting copper strip, the second connecting copper strip, the third connecting copper strip and the fourth connecting copper strip are arranged in a winding core pipe in the middle of the first capacitor roll, the second capacitor roll and the third capacitor roll.
2. An electrically hard-wired cylindrical three-phase low-voltage power capacitor as claimed in claim 1, characterized in that: first contact, second contact, third contact and fourth contact contain the copper sheet, perforate, sharp object, centre bore and recess, it evenly distributed perforates on the copper sheet, the sharp object of first contact all is located the upside of copper sheet, the sharp object of second contact and third contact is located the upper and lower both sides of copper sheet, the sharp object of fourth contact is located the downside of copper sheet, every perforation correspondence sets up two at least sharp objects and same fenestrate sharp object orientation is the same, the centre bore is located the copper sheet center, the recess sets up on the copper sheet and the recess radially sets up along the centre bore.
3. An electrically hard-wired cylindrical three-phase low-voltage power capacitor according to claim 2, characterized in that: the first contact piece and the fourth contact piece comprise at least two through holes, the second contact piece and the third contact piece comprise at least four through holes, and sharp objects of the at least four through holes are distributed towards two sides of the second contact piece and the third contact piece.
4. An electrically hard-wired cylindrical three-phase low-voltage power capacitor as claimed in claim 1, characterized in that: the first capacitor roll, the second capacitor roll and the third capacitor roll respectively comprise a roll core pipe, a plastic film with a metal coating, an upper gold spraying layer and a lower gold spraying layer, the plastic film with the metal coating is wound on the roll core pipe to form a capacitor roll, the upper gold spraying layer is arranged on the upper side surface of the capacitor roll, and the lower gold spraying layer is arranged on the lower side surface of the capacitor roll.
5. An electrically hard-wired cylindrical three-phase low-voltage power capacitor according to claim 2, characterized in that: the first connecting copper strip, the second connecting copper strip, the third connecting copper strip and the fourth connecting copper strip are vertically arranged, the lower ends of the first connecting copper strip, the second connecting copper strip, the third connecting copper strip and the fourth connecting copper strip are perpendicularly bent outwards, the bent parts of the lower ends of the first connecting copper strip, the second connecting copper strip, the third connecting copper strip and the fourth connecting copper strip are sequentially welded in grooves of the first contact element, the second contact element, the third contact element and the fourth contact element respectively, and the upper ends of at least three connecting copper strips in the first connecting copper strip, the second connecting copper strip, the third connecting copper strip and the fourth connecting copper strip penetrate through the clamping and pressing piece after being bent outwards.
6. An electrically hard-wired cylindrical three-phase low-voltage power capacitor according to claim 5, characterized in that: the clamping and pressing piece comprises a spring piece and a plastic block, the spring piece is injection-molded on the plastic block and is positioned on the outer side edge of the plastic block, the outer side of the spring piece is provided with a claw-shaped spring edge, the claw-shaped spring edge is warped upwards, a boss protruding upwards is arranged in the middle of the upper plane of the plastic block, the boss is provided with two cylinders and one long cylinder, and the two cylinders and the long cylinder are distributed in a triangular mode.
7. An electrically hard-wired cylindrical three-phase low-voltage power capacitor according to claim 6, characterized in that: the spring plate is internally provided with a plurality of material through holes which are distributed along the circumferential direction of the spring plate, the side surface of the boss is provided with a plurality of side material through holes which are distributed along the circumferential direction of the side surface of the boss.
8. An electrically hard-wired cylindrical three-phase low-voltage power capacitor according to claim 5, characterized in that: and a vertical upward surrounding edge is arranged at the outer side edge of the lower end cover.
9. An electrically hard-wired cylindrical three-phase low-voltage power capacitor as claimed in claim 1, characterized in that: and insulating soft sheaths are arranged on the outer sides of the first connecting copper strip, the second connecting copper strip, the third connecting copper strip and the fourth connecting copper strip.
10. An electrically hard-wired cylindrical three-phase low-voltage power capacitor as claimed in claim 1, characterized in that: still contain the anchorage bar, the lower extreme of anchorage bar is provided with down the screw, the upper end of anchorage bar is provided with the screw, and the centre of bottom end cover is provided with the screw hole, and the centre of card casting die is provided with fastening through hole, and the anchorage bar lower extreme is through screw fixation in the bottom end cover screw hole down, and the anchorage bar upper end is passed behind the card casting die fastening through hole and is compressed tightly the card casting die downwards through last screw and fastening nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011515163.5A CN112563029A (en) | 2020-12-21 | 2020-12-21 | Electrical hard-connected cylindrical three-phase low-voltage power capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011515163.5A CN112563029A (en) | 2020-12-21 | 2020-12-21 | Electrical hard-connected cylindrical three-phase low-voltage power capacitor |
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| Publication Number | Publication Date |
|---|---|
| CN112563029A true CN112563029A (en) | 2021-03-26 |
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|---|---|---|---|
| CN202011515163.5A Pending CN112563029A (en) | 2020-12-21 | 2020-12-21 | Electrical hard-connected cylindrical three-phase low-voltage power capacitor |
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| CN108109838A (en) * | 2018-01-10 | 2018-06-01 | 宁波海蔓汽车科技有限公司 | Capacitance installation and debugging frock |
| CN109545558A (en) * | 2019-01-15 | 2019-03-29 | 安徽瀚宇电气有限公司 | A kind of high life three-phase low-voltage capacitor |
| CN211479862U (en) * | 2020-03-18 | 2020-09-11 | 胜业电气股份有限公司 | Capacitor wiring terminal with equilateral triangle layout screw lead-out |
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2020
- 2020-12-21 CN CN202011515163.5A patent/CN112563029A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103748645A (en) * | 2011-06-15 | 2014-04-23 | 弗拉克电容及工厂设施有限公司 | Three-phase can capacitor with three star-connected capacitors in a housing |
| CN103890882A (en) * | 2011-06-15 | 2014-06-25 | 弗拉克电容及工厂设施有限公司 | Contact for electrically connecting end-face contact layers on the end faces of a plastic foil capacitor coil of a single-phase or three-phase encapsulated capacitor, and single-phase and three-phase encapsulated capacitor having said contact |
| CN108109838A (en) * | 2018-01-10 | 2018-06-01 | 宁波海蔓汽车科技有限公司 | Capacitance installation and debugging frock |
| CN109545558A (en) * | 2019-01-15 | 2019-03-29 | 安徽瀚宇电气有限公司 | A kind of high life three-phase low-voltage capacitor |
| CN211479862U (en) * | 2020-03-18 | 2020-09-11 | 胜业电气股份有限公司 | Capacitor wiring terminal with equilateral triangle layout screw lead-out |
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