CN112466666A - High-strength metallized film capacitor and preparation device thereof - Google Patents
High-strength metallized film capacitor and preparation device thereof Download PDFInfo
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- CN112466666A CN112466666A CN202011313294.5A CN202011313294A CN112466666A CN 112466666 A CN112466666 A CN 112466666A CN 202011313294 A CN202011313294 A CN 202011313294A CN 112466666 A CN112466666 A CN 112466666A
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- 239000003990 capacitor Substances 0.000 title claims abstract description 31
- 239000011104 metalized film Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims description 7
- 238000012545 processing Methods 0.000 claims abstract description 112
- 239000003822 epoxy resin Substances 0.000 claims abstract description 32
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 20
- 238000003860 storage Methods 0.000 claims description 10
- 239000012634 fragment Substances 0.000 claims description 9
- 230000003028 elevating effect Effects 0.000 claims description 4
- 239000010408 film Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims 1
- 238000001465 metallisation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 18
- 238000007789 sealing Methods 0.000 description 14
- 230000006872 improvement Effects 0.000 description 6
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 230000010412 perfusion Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 208000028659 discharge Diseases 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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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
- H01G4/33—Thin- or thick-film capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
- H01G13/003—Apparatus or processes for encapsulating 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
- H01G4/224—Housing; Encapsulation
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The high-strength metallized film capacitor comprises a shell, wherein the top opening of the shell is connected with a cover plate in a seamless mode, a battery cell is arranged inside the shell, and an epoxy resin layer is filled between the shell and the battery cell; the surface of the cover plate is provided with an external end; the bottom surface of the cover plate is provided with a connecting column, and the connecting column is electrically connected with the external end socket; the top surface of electricity core is equipped with electric connection's connecting pipe, the spliced pole fixed peg graft in the inside of connecting pipe, the spliced pole with electric connection between the connecting pipe, processing groove has been seted up on the surface of apron, processing groove is used for supplying to fill the structure and stretches into the processing, processing groove with fill the separable block of structure and connect. The invention optimizes the effect which can be achieved by a plurality of steps into one step, greatly improves the processing efficiency and reduces the production cost.
Description
Technical Field
The invention belongs to the technical field of capacitor processing, and particularly relates to a high-strength metalized film capacitor and a preparation device thereof.
Background
The metallized film capacitor is a capacitor which is made by taking an organic plastic film as a medium and taking a metallized film as an electrode in a winding mode (except a laminated structure), wherein the film used by the metallized film capacitor comprises polyethylene, polypropylene, polycarbonate and the like, and the metallized film capacitor also comprises a laminated type except a winding type; wherein the polyester film medium and the polypropylene film medium are used;
when the metal film capacitor is produced, the production steps are mainly as follows: placing the prepared battery core in a shell; pumping out air in the shell by using a vacuum pump; pouring sealing epoxy resin between the battery cell and the shell; electrically contacting the cover plate with the battery core and sealing the cover plate on the shell;
the existing production process can be completed only by four independent steps, when the cover plate is installed, the epoxy resin is in a solidified state, the cover plate and the solid epoxy resin cannot be fully fused, a connecting gap exists, the cover plate only contacts with the shell, and therefore the sealing performance of the cover plate is poor and the structural strength of the capacitor is high.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a high-strength metallized film capacitor, and the specific technical scheme is as follows:
the high-strength metallized film capacitor comprises a shell, wherein the top opening of the shell is connected with a cover plate in a seamless mode, a battery cell is arranged inside the shell, and an epoxy resin layer is filled between the shell and the battery cell; the surface of the cover plate is provided with an external end; the bottom surface of the cover plate is provided with a connecting column, and the connecting column is electrically connected with the external end socket;
the top surface of electricity core is equipped with electric connection's connecting pipe, the spliced pole fixed peg graft in the inside of connecting pipe, the spliced pole with electric connection between the connecting pipe, processing groove has been seted up on the surface of apron, processing groove is used for supplying to fill the structure and stretches into the processing, processing groove with fill the separable block of structure and connect.
Furthermore, a limiting groove is formed in the connecting pipe, the limiting groove comprises a slot and a first clamping groove, the diameter of the slot is smaller than that of the first clamping groove, the slot is located at the top of the first clamping groove, the connecting column is attached to the slot and stretches into the slot, a conductive elastic sheet is arranged at the end of the connecting column and is clamped and embedded into the first clamping groove, a conductive sheet is arranged on the inner wall of the first clamping groove and is in electrical contact with the conductive sheet, the conductive sheet is electrically connected with the inside of the battery cell, and the conductive elastic sheet is electrically connected with the external end socket.
Furthermore, the conductive elastic sheet is symmetrically arranged, the outer side surface of the conductive elastic sheet is arc-surface-shaped, the bottom end of the conductive elastic sheet is conical, the top surface of the conductive elastic sheet is of a plane structure, and the plane structure is abutted to the corner part of the limiting groove.
Furthermore, the cross sections of the processing groove and the limiting groove are both rectangular, and the processing groove and the limiting groove are symmetrically provided with two parts.
The preparation device of the high-strength metallized film capacitor comprises a supporting mechanism, wherein the surface of the supporting mechanism is used for fixedly mounting a shell; the supporting mechanism is fixedly connected with a lifting mechanism, the lifting mechanism is connected with a processing box, the lifting mechanism is used for driving the processing box to move up and down, a storage tank and a vacuum pump are arranged inside the processing box, a processing pipe penetrates through the processing box, an outlet of the storage tank is communicated to an inlet of the processing pipe, the vacuum pump is communicated with the processing pipe, an outlet of the processing pipe extends into the processing tank, and the processing pipe is connected with the processing tank in a separable clamping manner.
Further, the processing pipe comprises a main pipe body and branch pipe bodies, an outlet of the main pipe body is communicated with a plurality of branch pipe bodies, the main pipe body is arranged in the processing box, the vacuum pump and the storage tank are communicated with the main pipe body, the branch pipe bodies can be detachably clamped and embedded in the processing tank, and the bottom ends of the branch pipe bodies are arranged in the processing tank.
Further, the exit of stock chest is connected row material pipe, arrange the material pipe intercommunication to the middle part of being responsible for the body, arrange the internally mounted of material pipe and have the relief valve.
Further, the bottom outer wall of the pipe dividing body is provided with an elastic clamping head and a baffle plate, a second clamping groove is formed in the inner wall of the processing groove, the elastic clamping head is clamped and embedded into the second clamping groove, the cross section of the elastic clamping head is semicircular, the baffle plate is located at the top of the elastic clamping head, and the baffle plate is attached to the surface of the cover plate.
The invention has the beneficial effects that:
1. through the capacitor structure and the preparation facilities after improving, can realize reaching three effects in filling the step: completing the pouring of the epoxy resin; fixing the cover plate, the shell and the battery cell into a whole; plugging a processing groove on the cover plate; the effect which can be achieved by a plurality of steps is optimized into one step, the processing efficiency is greatly improved, and the production cost is reduced;
2. the fixing process of the cover plate, the shell and the battery cell is completed in the epoxy resin molten state, so that the connection of the cover plate, the shell and the battery cell is more sufficient and tight, the connection strength is higher, and the conductivity is better;
3. after the vacuum pump vacuumizes, the melting material can be automatically sucked into the shell under the action of negative pressure, and the material pumping pump does not need to be arranged independently, so that the cost is reduced, and the structure is simpler.
Drawings
FIG. 1 shows a schematic diagram of a high strength metallized film capacitor and fabrication apparatus of the present invention;
FIG. 2 is a schematic view showing the assembly structure of the connecting tube and the connecting column of the present invention;
FIG. 3 is a schematic view showing the sectional structure of the connection tube and the connection column according to the present invention;
FIG. 4 is a schematic view showing the internal structure of the processing box of the present invention;
FIG. 5 shows a schematic diagram of a capacitor isolation structure of the present invention;
FIG. 6 shows an enlarged schematic view of the structure at A of the present invention;
FIG. 7 is a schematic view of the cover and housing assembly of the present invention;
FIG. 8 is a schematic view of the epoxy resin infusion state structure of the present invention;
shown in the figure: 1. supporting mechanism, 11, a supporting bench, 12, the grip slipper, 2, the casing, 3, electric core, 31, the connecting pipe, 311, the spacing groove, 3111, the slot, 3112, first draw-in groove, 312, the conducting strip, 4, the apron, 41, the spliced pole, 411, electrically conductive shell fragment, 42, the sealing washer, 43, the processing groove, 44, external end, 45, the second draw-in groove, 5, the processing case, 51, the stock chest, 511, arrange the material pipe, 512, arrange the material valve, 52, the vacuum pump, 6, the processing pipe, 61, be responsible for the body, 62, the branch pipe body, 621, the baffle, 622, the elasticity dop, 7, elevating system, 8, the epoxy layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The high-strength metallized film capacitor comprises a shell 2, wherein the top opening of the shell 2 is connected with a cover plate 4 in a seamless mode, an electric core 3 is arranged inside the shell 2, and an epoxy resin layer 8 is filled between the shell 2 and the electric core 3; the surface of the cover plate 4 is provided with an external connection end 44; a connecting column 41 is arranged on the bottom surface of the cover plate 4, and the connecting column 41 is electrically connected with the external terminal 44;
the top surface of the battery cell 3 is provided with a connecting pipe 31 which is electrically connected, the connecting column 41 is fixedly inserted into the connecting pipe 31, the connecting column 41 is electrically connected with the connecting pipe 31, the connecting column 41 is fixedly inserted into the connecting pipe 31, and the connecting pipe 31 and the connecting column 41 are fixed into a whole on the basis of ensuring the contact of conductors, so that the cover plate 4 and the battery cell 3 can be stably arranged in the shell 2 at the same time during the perfusion operation, if the two elements are not fixedly connected, the two elements cannot be conveniently arranged at the same time, the battery cell 3 cannot be ensured to be suspended in the shell 2, and the two elements can be pulled mutually, and the firmness of the two elements can be improved;
the surface of the cover plate 4 is provided with a processing groove 43, the processing groove 43 is used for the filling structure to extend into for processing, and the processing groove 43 is detachably clamped and connected with the filling structure; the processing groove 43 is used for realizing that the pouring structure can normally operate the interior of the shell 2 after the cover plate 4, the battery core 3 and the shell 2 are positioned, and the installation positions of the shell 2 and the cover plate 4 cannot be influenced; the processing groove can be encapsulated and sealed by epoxy resin, a sealing structure does not need to be independently arranged, and the operation mode of epoxy resin encapsulation can also improve the bonding surface of the epoxy resin and the cover plate 4, so that the connection firmness of the cover plate, the epoxy resin and the shell is further improved;
as an improvement of the above technical solution, a limiting groove 311 is formed in the connecting pipe 31, the limiting groove 311 includes a slot 3111 and a first slot 3112, the diameter of the slot 3111 is smaller than the first slot 3112, the slot 3111 and the first slot 3112 are in a step shape, and the small diameter of the first slot 3112 can ensure that the conductive elastic piece 411 cannot be pulled out after being inserted, so as to realize the fixed assembly of the connecting column 41 and the connecting pipe 31;
the slot 3111 is located at the top of the first card slot 3112, the connecting column 41 is attached to and extends into the slot 3111, the end of the connecting column 41 is provided with a conductive elastic sheet 411, the conductive elastic sheet 411 can ensure conductivity, and the deformation of the connecting column can be reduced in the slot 3111 region and expanded in the first card slot 3112 region to realize clamping and fixing;
the conductive elastic sheet 411 is clamped and embedded in the first clamping groove 3112, a conductive sheet 312 is arranged on the inner wall of the first clamping groove 3112, the conductive elastic sheet 411 is electrically contacted with the conductive sheet 312, the conductive sheet 312 is electrically connected with the inside of the battery cell 3, and the conductive elastic sheet 411 is electrically connected with the external terminal 44; the contact between the conductive elastic sheet 411 and the conductive sheet 312 can realize the electrical connection between the battery cell 3 and the outer terminal connector 44.
As an improvement of the above technical solution, the conductive elastic sheet 411 is symmetrically arranged, the outer side surface of the conductive elastic sheet 411 is arc-surface-shaped, the bottom end of the conductive elastic sheet 411 is conical, the arc surface of the side surface can make the conductive elastic sheet 411 more smooth when being inserted, so as to achieve a guiding effect, the conical shape can reduce the obstruction encountered at the bottom end of the conductive elastic sheet 411, and improve the insertion speed;
the top surface of the conductive elastic sheet 411 is a planar structure, and the planar structure is abutted against the corner part of the limiting groove 311; the mutual interference of the planes can realize that the conductive elastic sheet 411 can only be inserted, and when the conductive elastic sheet is pulled out, the two contact each other, and the conductive elastic sheet cannot be pulled out.
As an improvement of the above technical solution, the cross sections of the processing groove 43 and the limiting groove 311 are both rectangular, and the rectangular shapes are used for facilitating the assembly and alignment of the connecting column 41 and the connecting pipe 31 and the connection and alignment of the filling structure and the processing groove 43, so as to avoid the influence of the deviation of the mounting position on the subsequent mounting accuracy.
The processing groove 43 and the limiting groove 311 are symmetrically provided with two parts, the processing groove 43 is provided with two parts which can facilitate bidirectional perfusion, so that the perfusion speed is higher, and the electric core 3 can be stressed more stably and cannot deviate due to multidirectional perfusion.
The preparation device of the high-strength metallized film capacitor comprises a supporting mechanism 1, wherein the surface of the supporting mechanism 1 is used for fixedly mounting a shell 2; the supporting mechanism 1 is fixedly connected with a lifting mechanism 7, the lifting mechanism 7 is connected with a processing box 5, the lifting mechanism 7 is used for driving the processing box 5 to move up and down, a material storage tank 51 and a vacuum pump 52 are installed inside the processing box 5, a processing pipe 6 penetrates through the processing box 5, an outlet of the material storage tank 51 is communicated with an inlet of the processing pipe 6, the vacuum pump 52 is communicated with the processing pipe 6, an outlet of the processing pipe 6 extends into the processing tank 43, and the processing pipe 6 is detachably clamped and connected with the processing tank 43;
As a modification of the above technical solution, the processing pipe 6 includes a main pipe body 61 and branch pipe bodies 62, a plurality of branch pipe bodies 62 are communicated with an outlet of the main pipe body 61, the main pipe body 61 is disposed inside the processing tank 5, the vacuum pump 52 and the stock tank 51 are both communicated with the main pipe body 61, and the branch pipe bodies 62 are detachably engaged and fitted inside the processing tank 43; the split conveying of the melting materials can be realized through the pipe splitting body 62, the conveying efficiency is improved, the conveying is more uniform, and the stability of the battery cell is ensured;
the bottom end of the branch pipe body 62 is disposed inside the processing groove 43, the bottom end of the branch pipe body 62 does not extend out of the processing groove 43, and if the branch pipe body 62 extends out of the processing groove 43, when the top portion of the inside of the housing 2 is poured, the epoxy resin and the branch pipe body 62 are adhered together, so that the subsequent pulling-out of the branch pipe body 62 is not facilitated.
As an improvement of the above technical solution, a discharge pipe 511 is connected to an outlet of the storage tank 51, the discharge pipe 511 is communicated to the middle of the main pipe body 61, and a discharge valve 512 is installed inside the discharge pipe 511; after the vacuum operation is finished, the discharge valve 512 can control the material storage tank 51 to be opened again, so that the primary discharge can be sucked out by the maximum negative pressure, and the subsequent discharge of materials is more convenient; illustratively, the discharge valve is a solenoid valve.
As an improvement of the above technical solution, an elastic chuck 622 and a baffle 621 are arranged on the outer wall of the bottom end of the branch pipe body 62, a second clamping groove 45 is formed in the inner wall of the processing groove 43, the elastic chuck 622 is clamped and embedded in the second clamping groove 45, the cross section of the elastic chuck 622 is semicircular, the baffle 621 is located at the top of the elastic chuck 622, and the baffle 621 is attached to the surface of the cover plate 4; the baffle 621 can restrict the mounting position of the cover plate 4, so that the cover plate 4 can be mounted at a designated position, and the influence of over-assembly on the assembly tightness of the subsequent cover plate 4 and the shell 2 is avoided; the semi-circular elastic chuck 622 can facilitate the snap-in insertion and also the disengagement during the separation.
As shown in fig. 1, fig. 1 shows a schematic structural diagram of a high-strength metallized film capacitor and a manufacturing device according to the present invention;
the surface of the supporting plate 11 is provided with a clamping seat 12, the inside of the clamping seat 12 is provided with a shell 2, and the shell 2 and the clamping seat 12 are fixed through screws; the interior of the shell 2 is of a cavity structure;
during installation, the battery core 3, the cover plate 4 and the processing pipe 6 are assembled and connected; the connecting pipe 31 is spliced with the connecting column 41, the connecting pipe 31 and the connecting column 41 are both made of plastic materials, and the interiors of the connecting pipe 31 and the connecting column 41 are electrically connected;
the lifting mechanism 7 comprises a pneumatic rod, and the pneumatic rod is fixedly connected with the side surface of the processing box 5;
the processing tube 6 is fixedly connected with the processing box 5, and the bottom end of the processing tube 6 is inserted in the cover plate 4.
As shown in FIG. 2, FIG. 2 is a schematic view illustrating the assembly structure of the connecting tube and the connecting column according to the present invention;
the spliced pole 41 is embedded into the inside of slot 3111, and the bottom of spliced pole 41 is equipped with electrically conductive shell fragment 411, and electrically conductive shell fragment 411 symmetry is equipped with two, and electrically conductive shell fragment 411 block is embedded into first draw-in groove 3112 in, and the bottom of electrically conductive shell fragment 411 is toper, lateral surface be the arc, the top surface is planar structure.
As shown in fig. 4, fig. 4 is a schematic view showing the internal structure of the processing box of the present invention;
the discharge pipe 511 is arranged obliquely downwards, the discharge pipe 511 is obliquely communicated to the middle of the main pipe body 61, the main pipe body 61 and the branch pipe body 62 are integrally in an inverted U shape, and the inlet of the vacuum pump 52 is communicated with the main pipe body 61.
As shown in fig. 5 and 6, fig. 5 shows a schematic view of a capacitor separating structure of the present invention; FIG. 6 shows an enlarged schematic view of the structure at A of the present invention;
the outer wall of the processing pipe 6 and the outer wall of the cover plate 4 are both glued with rubber pads which are sealing structures, so that the sealing performance of each joint can be improved, and external gas is prevented from entering the shell when the shell is vacuumized.
In the practice of the present invention, the catalyst is,
s1, assembling the cover plate 4, the processing pipe 6 and the battery cell 3 into a whole (as shown in FIG. 7):
s1.1, connecting the cover plate 4 with the branch pipe body 62, moving the cover plate 4 upwards to enable the branch pipe body 62 to be inserted into the processing groove 43, and when the cover plate 4 is abutted to the baffle 621, clamping and embedding the elastic clamping head 622 into the second clamping groove 45, so that the assembly of the branch pipe body 62 and the cover plate 4 can be realized;
s1.2, then fixedly connecting the cover plate 4 with the electric core 3, inserting the connecting column 41 into the connecting pipe 31, namely inserting the conductive elastic sheet 411 into the limiting groove 311, wherein the conductive elastic sheet 411 enters the slot 3111 first, the conductive elastic sheet 411 is compressed and contracted, then the conductive elastic sheet 411 is continuously inserted, the connecting column 41 enters the slot 3111 along with the conductive elastic sheet 411, when the conductive elastic sheet 411 enters the first slot 3112, the conductive elastic sheet 411 is constrained in the first slot 3112, the conductive elastic sheet 411 cannot continuously move downwards, the top plane structure of the conductive elastic sheet 411 can also abut against the corner terrace part of the limiting groove 311, the conductive elastic sheet 411 is in contact electrical connection with the conductive sheet 312, and thus the fixed electrical connection between the connecting column 41 and the connecting pipe 31 is completed;
s2, pouring epoxy resin (as shown in fig. 8):
s2.1, placing the shell 2 on the clamping seat 12, and screwing down a screw on the clamping seat 12 to complete the positioning of the shell 2;
s2.2, the lifting mechanism 7 drives the processing box 5 to move downwards, meanwhile, the cover plate 4 and the battery cell 3 are pushed to enter the shell 2 through the processing pipe 6, when the cover plate 4 is tightly attached to the top opening of the shell 2, the processing can be stopped, the battery cell 3 is suspended in the air and placed at a specified position inside the shell 2, the processing pipe 6 is sealed by the cover plate 4, and the sealing performance of each connection part is guaranteed by the rubber sealing pieces at each position;
s2.3, starting a vacuum pump 52 to pump out the gas in the processing pipe 6 and the shell 2, so that the processing pipe 6 and the shell 2 are in a vacuum environment, and the influence of air on the subsequent epoxy resin is eliminated;
s2.4, after vacuum pumping is finished, opening a discharge valve 512, wherein the processing pipe 6 and the shell 2 are both in a negative pressure state, the molten material in the storage tank 51 flows out under the action of self gravity and negative pressure suction force, then enters the main pipe body 61 through a discharge pipe 511, and enters the cavity part in the shell 2 through two branch pipe bodies 62 to carry out epoxy resin encapsulation operation; after the epoxy resin material is poured for a period of time, the shell 2 is completely filled with the epoxy resin material, at the moment, the cell 3, the inner wall of the shell 2 and the bottom surface of the cover plate 4 are adhered together by the molten epoxy resin, the connecting column 41 and the connecting pipe 31 are also immersed in the epoxy resin, the connecting column 41 and the connecting pipe 31 are both made of PVC materials, the external epoxy resin cannot influence the normal electric contact of the conductive elastic sheet 411 and the conductive sheet 312, and then the shell is statically cooled for a period of time, so that the epoxy resin in the shell 2 is cooled and solidified, and the cell 3, the inner wall of the shell 2 and the cover plate;
s2.5, continuing to pour the epoxy resin, beginning to fill and seal the processing groove 43 by the epoxy resin, simultaneously, driving the processing pipe 6 to move upwards by the lifting mechanism 7, applying a downward reverse pulling force to the cover plate 4 when the processing pipe 6 is driven to move upwards by the lifting mechanism 6 because the cover plate 4 is adhered by the solidified epoxy resin and the shell 2 is clamped and fixed by the clamping seat 12, so that the shell 2 and the cover plate 4 are kept still when the processing pipe 6 moves upwards, compressing the elastic clamping head 622 by the second clamping groove 45 when the branch pipe body 62 moves upwards along the processing groove 43, separating the elastic clamping head 622 from the second clamping groove 45, pouring the molten epoxy resin into the branch pipe body 62 and separating from the processing groove 43 at the same time, sealing the processing groove 43 by the epoxy resin when the branch pipe body 62 completely separates from the processing groove 43, thereby avoiding the need of sealing the processing groove 43 again and utilizing the design of sealing the processing groove by the epoxy resin, firstly, the operation of the sealed processing tank can be completed in the filling process without independently arranging a sealing process and a sealing structure, so that the cost is reduced, and the production steps are optimized; thirdly, the bonding surface between the epoxy resin and the cover plate 4 can be improved, so that the connection firmness between the cover plate and the epoxy resin as well as between the cover plate and the shell is further improved;
the capacitor can be processed by the two steps.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. High strength metallized film capacitor, its characterized in that: the battery comprises a shell (2), wherein a cover plate (4) is connected with an opening at the top of the shell (2) in a seamless mode, a battery cell (3) is arranged inside the shell (2), and an epoxy resin layer (8) is filled between the shell (2) and the battery cell (3); the surface of the cover plate (4) is provided with an external end (44); a connecting column (41) is arranged on the bottom surface of the cover plate (4), and the connecting column (41) is electrically connected with the external end (44);
the top surface of electric core (3) is equipped with electric connection's connecting pipe (31), spliced pole (41) fixed peg graft in the inside of connecting pipe (31), spliced pole (41) with electric connection between connecting pipe (31), processing groove (43) have been seted up on the surface of apron (4), processing groove (43) are used for supplying the filling structure to stretch into processing, processing groove (43) with the separable block of filling structure is connected.
2. The high strength metallized film capacitor of claim 1, wherein: the inside of connecting pipe (31) is opened there is spacing groove (311), spacing groove (311) are including slot (3111) and first draw-in groove (3112), the diameter of slot (3111) is less than first draw-in groove (3112), slot (3111) are located the top of first draw-in groove (3112), spliced pole (41) laminating stretch into in the inside of slot (3111), the tip of spliced pole (41) is equipped with electrically conductive shell fragment (411), electrically conductive shell fragment (411) block embedding in the inside of first draw-in groove (3112), the inner wall of first draw-in groove (3112) is equipped with conducting strip (312), electrically conductive shell fragment (411) with conducting strip (312) electrical contact, conducting strip (312) with the inside electricity of electricity core (3) is connected, electrically conductive shell fragment (411) with external end (44) electricity is connected.
3. The high strength metallized film capacitor of claim 2, wherein: the conductive elastic sheet (411) is symmetrically arranged, the outer side face of the conductive elastic sheet (411) is arc-surface-shaped, the bottom end of the conductive elastic sheet is conical, the top face of the conductive elastic sheet (411) is of a plane structure, and the plane structure is abutted to the corner part of the limiting groove (311).
4. The high strength metallized film capacitor of claim 3, wherein: the cross sections of the processing groove (43) and the limiting groove (311) are rectangular, and two processing grooves (43) and two limiting grooves (311) are symmetrically arranged.
5. Preparation facilities of high strength metallization film capacitor, its characterized in that: applying the high strength metallized film capacitor of claim 4; the device comprises a supporting mechanism (1), wherein the surface of the supporting mechanism (1) is used for fixedly mounting a shell (2); the fixed connection elevating system (7) of supporting mechanism (1), processing case (5) is connected in elevating system (7), elevating system (7) are used for driving processing case (5) up-and-down motion, the internally mounted of processing case (5) has stock chest (51) and vacuum pump (52), processing pipe (6) have been run through to the inside of processing case (5), the exit of stock chest (51) communicates to the entrance of processing pipe (6), vacuum pump (52) with processing pipe (6) intercommunication, the exit of processing pipe (6) stretch into in the inside of processing groove (43), processing pipe (6) with separable block is connected between processing groove (43).
6. The apparatus for manufacturing a high-strength metallized film capacitor as claimed in claim 5, wherein: the processing pipe (6) comprises a main pipe body (61) and branch pipe bodies (62), the outlet of the main pipe body (61) is communicated with a plurality of branch pipe bodies (62), the main pipe body (61) is arranged in the processing box (5), the vacuum pump (52) and the storage tank (51) are communicated with the main pipe body (61), the branch pipe bodies (62) can be detachably clamped and embedded in the processing tank (43), and the bottom ends of the branch pipe bodies (62) are arranged in the processing tank (43).
7. The apparatus for manufacturing a high-strength metallized film capacitor as claimed in claim 6, wherein: the outlet of the storage tank (51) is connected with a discharge pipe (511), the discharge pipe (511) is communicated to the middle of the main pipe body (61), and a discharge valve (512) is arranged in the discharge pipe (511).
8. The apparatus for manufacturing a high-strength metallized film capacitor as claimed in claim 7, wherein: divide the bottom outer wall of body (62) to be equipped with elasticity dop (622) and baffle (621), second draw-in groove (45) have been seted up to the inner wall of processing groove (43), elasticity dop (622) block is embedded in the inside of second draw-in groove (45), the cross-section of elasticity dop (622) is semi-circular, baffle (621) are located the top of elasticity dop (622), baffle (621) laminate in the surface of apron (4).
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