CN112992559B - Expansion electrode applied to aluminum foil linkage energizing equipment - Google Patents
Expansion electrode applied to aluminum foil linkage energizing equipment Download PDFInfo
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- CN112992559B CN112992559B CN202110179376.3A CN202110179376A CN112992559B CN 112992559 B CN112992559 B CN 112992559B CN 202110179376 A CN202110179376 A CN 202110179376A CN 112992559 B CN112992559 B CN 112992559B
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 76
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 239000011888 foil Substances 0.000 title claims abstract description 76
- 239000003792 electrolyte Substances 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 22
- 230000008602 contraction Effects 0.000 claims abstract description 14
- 230000000916 dilatatory effect Effects 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 238000003487 electrochemical reaction Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 238000003411 electrode reaction Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 17
- 239000003990 capacitor Substances 0.000 description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010339 dilation Effects 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 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
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses an expansion electrode, which is applied to aluminum foil linkage energizing equipment; the dilating electrode comprises: a plurality of metal wires are arranged on an outer electrode frame to realize the conduction of an external power supply connected with the expansion electrode and the aluminum foil linkage energizing equipment; the electrode outer frame is provided with one or two electrode inner frames, and a plurality of metal leads extend to the tops of the electrode inner frames; an electrode mesh is welded on the inner frame of the electrode, and the metal frame is connected with the electrode mesh and used for electrode reaction; the forced circulation distribution pipes are arranged at the inner side and the bottom of the electrode outer frame, are connected with an electrolyte temperature regulating tank of the aluminum foil linkage energizing equipment through a liquid inlet pipe, and lead the electrolyte in the electrolyte temperature regulating tank into the expansion electrode; an electrode expansion adjustment member is disposed outside the electrode outer frame and connected to the electrode outer frame and the electrode inner frame, respectively, for effecting expansion and contraction of the expansion electrode. The technical scheme of the invention has the beneficial effects that: only redesigning the electrode part, changing the original flat plate electrode into a box-type expanded metal mesh plate electrode, adjusting the electrode distance between the electrodes, reducing the electrode distance, reducing the cell voltage and ensuring the electrode to have better current distribution uniformity.
Description
Technical Field
The invention relates to the field of electrodes in aluminum foil linkage energizing production equipment, in particular to an expansion electrode applied to the aluminum foil linkage energizing equipment.
Background
The performance of the electrolytic capacitor product is closely related to the quality of an oxide film generated by aluminum foil energization, and currently, energized equipment mainly takes linkage energization as main equipment, and energized production equipment is high-energy-consumption electrolytic equipment at the same time.
The electrolytic capacitor has a withstand voltage determined by the cell voltage of the energized cell, so that the cell voltage of the aluminum foil energized cell can be up to kilovolt when producing high withstand voltage capacitors, the cell voltage mainly consists of electrode oxidation and reduction potentials and electrolyte voltage drops, and the electrolyte voltage drops account for a major part when the aluminum foil is energized in the production of medium and high voltage electrolytic capacitors. To produce electrolytic capacitors of different requirements, different suitable electrolytes and cell voltages are selected. The anode potential of the aluminum foil in the energized electrolytic cell determines the withstand voltage value of the electrolytic capacitor, and the higher the anode potential of the aluminum foil is, the higher the withstand voltage value of the electrolytic capacitor is, the anode potential in the electrolytic cell is increased, and the cathode overpotential and the voltage drop of the electrolyte are inevitably increased, which is not desirable, and the method is only thought on the aspects of reducing the pole distance, selecting the cathode material and activating the surface when the energy consumption of the energized electrolytic cell is reduced. At present, in the existing linkage energizing equipment technology, the minimum polar distance between an aluminum foil and a polar plate is 35 mm, and the voltage of a cell for further reducing the polar distance cannot be reduced but is increased.
In order to make the electrode current distribution uniform, the whole electrode plate is divided into a plurality of blocks by partial equipment at present, and the uniformity of the current distribution is not greatly improved.
Disclosure of Invention
According to the problems in the prior art, the invention provides a technical scheme of an expansion electrode applied to aluminum foil linkage energizing equipment, aiming at reducing the cell voltage while reducing the polar distance and enabling the electrode to have better current distribution uniformity;
the technical scheme specifically comprises the following steps:
an expansion electrode is applied to an aluminum foil linkage energizing device; wherein the dilating electrode comprises:
the electrode outer frame is provided with a plurality of metal leads, so that the expansion electrode is connected with an external power supply connected with the aluminum foil linkage energizing equipment;
the electrode outer frame is provided with one or two electrode inner frames, and the plurality of metal leads extend to the tops of the electrode inner frames;
an electrode mesh is welded in the electrode inner frame, and the metal lead is connected with the electrode mesh and used for the electrochemical reaction of the expansion electrode;
the forced circulation distribution pipe is arranged on the inner side and the bottom of the electrode outer frame, is connected with an electrolyte temperature adjusting tank of the aluminum foil linkage energizing equipment through a liquid inlet pipe, and guides the electrolyte in the electrolyte temperature adjusting tank into the expansion electrode;
and the electrode expansion adjusting component is arranged on the outer side of the electrode outer frame, is respectively connected with the electrode outer frame and the electrode inner frame and is used for realizing the expansion and contraction of the expansion electrode.
Preferably, the above-described dilating electrode, wherein the electrode dilation adjustment member comprises:
the expansion adjusting shaft is horizontally fixed at the top end of the electrode outer frame through two shaft seats and is sequentially provided with two groups of gear sets;
the two screws are vertically fixed at the bottom end of the electrode outer frame through two screw seats and positioned on two sides of the electrode inner frame, and each screw is vertically connected with the expansion adjusting shaft and is driven through the gear set;
the arrangement positions of the first gear and the second gear of the gear set are mutually vertical and corresponding;
the expansion adjusting shaft and the two screw rods are mutually meshed through the first gear and the second gear to realize transmission;
each screw rod is also provided with:
the two sliding nuts are sleeved on the screw rod, so that the rotation of the screw rod drives the sliding nuts to move linearly up and down;
the two sliding sleeves are sleeved on the screw rod and are respectively positioned below each sliding nut, and two ends of each sliding sleeve are respectively fixed on the screw rod through a positioning nut, so that the rotation of the screw rod causes the distance between each sliding nut and the corresponding sliding sleeve to change;
and each connecting piece is connected with the sliding nut, the sliding sleeve and the electrode inner frame, and the expansion and contraction of the electrode inner frame are driven by rotating the expansion adjusting shaft.
Preferably, in the above dilating electrode, when one electrode inner frame is provided on any one side of the electrode outer frame, the connecting member comprises:
one end of the first connecting rod is connected with the sliding nut, and the other end of the first connecting rod is connected with the electrode inner frame;
one end of the second connecting rod is connected with the sliding sleeve, and the other end of the second connecting rod is connected with the first connecting rod;
the expansion and contraction of the electrode inner frame are supported by the connection of the first link and the second link.
Preferably, when another electrode inner frame is further disposed on the other side of the electrode outer frame, the connecting member further includes:
one end of the third connecting rod is connected with the other electrode inner frame, and the other end of the third connecting rod is connected with the first connecting rod;
one end of the fourth connecting rod is connected with the second connecting rod, and the other end of the fourth connecting rod is connected with the third connecting rod;
the expansion and contraction of the other electrode inner frame is supported by the connection of the third link and the fourth link.
Preferably, above-mentioned expansion electrode, wherein, the forced circulation distributing pipe is close to the top of outer frame of electrode is equipped with a forced circulation liquid inlet and connects the feed liquor pipe, and the forced circulation distributing pipe is close to the bottom of outer frame of electrode is equipped with a plurality of forced circulation liquid outlets, makes electrolyte follows through the effect of a circulating pump forced circulation liquid inlet flows in the expansion electrode, and passes through forced circulation liquid outlet upwards sprays the outflow.
Preferably, the expanded electrode, wherein the mesh plate thickness of the electrode mesh is 1-3 mm.
Preferably, the above-mentioned expansion electrode, wherein the mesh area of said electrode mesh is 5 to 25 mm square.
Preferably, in the above expansion electrode, a ratio of a mesh area of the electrode mesh to a metal area of the electrode mesh is 3: 7 to 4: 6.
An aluminum foil gang energizing apparatus including the above-described expansion electrode, the aluminum foil gang energizing apparatus comprising:
the power supply feeding tank is provided with a plurality of the expansion electrodes which are connected in parallel, and the expansion electrodes of the power supply feeding tank are connected with the anode of a direct-current power supply as the anode;
the aluminum foil energizing slot is provided with a plurality of the expansion electrodes which are connected in parallel, and the expansion electrodes of the aluminum foil energizing slot are cathodes connected with a negative electrode of a direct-current power supply;
the two electrolyte temperature adjusting tanks are respectively connected with the power supply feed tank and the forced circulation distribution pipes in the aluminum foil energizing tank through the circulating pumps, so that the electrolyte in the electrolyte temperature adjusting tanks is forced to circulate.
The technical scheme of the invention has the beneficial effects that: only the electrode part in the aluminum foil linkage energizing production equipment is redesigned, the original flat plate type electrode is changed into a metal mesh plate expansion electrode, and the box type expansion electrode can expand and contract, so that the electrode distance between the electrodes can be adjusted. And the electrode polar distance is reduced, the cell voltage can be reduced, and the mesh plate electrode has better current distribution uniformity.
Drawings
FIG. 1 is a schematic diagram of a prior art aluminum foil gang energized production apparatus using flat plate electrodes;
FIG. 2 is a schematic view of a preferred embodiment of the invention, showing a structure of a dilating electrode;
FIG. 3 is a top view of an expander electrode in accordance with a preferred embodiment of the invention;
FIG. 4 is a left side view of a dilation electrode in accordance with a preferred embodiment of the invention;
FIG. 5 is a schematic view of an expanded electrode of an aluminum foil gang energization production apparatus using an expanded electrode in accordance with a preferred embodiment of the present invention;
FIG. 6 is a schematic view of an aluminum foil gang-energized production apparatus using an expanded electrode in a contracted state of the electrode in a preferred embodiment of the present invention.
In the drawings: 10. aluminum foil; 11. a power feeding slot; 12. an aluminum foil energizing slot; 13. an electrolyte temperature adjusting tank; 14. a circulation pump; 15. a liquid inlet pipe; 16. a flat plate electrode anode; 17. a flat plate electrode cathode; 18. a liquid outlet pipe; 19. a roller; 20. expanding the electrode anode; 21. expanding the electrode cathode; 30. an expansion electrode; 301. an electrode expansion adjustment shaft; 302. an electrode outer frame; 303. a metal wire; 304. an electrode inner frame; 305. an electrode mesh; 306. a forced circulation distribution pipe; 307. a shaft seat; 308. a first gear; 309. a screw; 310. a screw seat; 311. a second gear; 312. a sliding nut; 313. a sliding sleeve; 314. positioning a nut; 315. a forced circulation liquid inlet; 316. a forced circulation liquid outlet; 320. a connecting member; 321. a first link; 322. a second link; 323. a third link; 324. and a fourth link.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
FIG. 1 is a schematic structural diagram of an aluminum foil linkage energization production apparatus using a plate electrode in the prior art, which is composed of two electrolytic cells, the first is a power supply feed tank 11, in which a plate electrode anode 16 is connected to a positive electrode of a DC power supply connected to the aluminum foil linkage energization production apparatus, and the second is an aluminum foil energization tank 12, in which a plate electrode cathode 17 is connected to a negative electrode of the DC power supply connected to the aluminum foil linkage energization production apparatus, in which case the power supply feed tank 11 and the aluminum foil energization tank 12 are connected in series. The power supply feed tank 11 is formed by connecting a plurality of anodes in parallel and feeding direct current power to the aluminum foil 10 through ion migration in the electrolyte, the aluminum foil 10 in the power supply feed tank 11 becomes a cathode, and the aluminum foil 10 in the aluminum foil energizing tank 12 is an anode due to the serial connection between the two electrolytic tanks, and has the functions of adsorbing anions in the electrolyte by the aluminum foil 10 in an anode state and forming an oxide film with a certain thickness on the surface of the aluminum foil.
Since the distance between the aluminum foils 10 is different in most of the existing linkage energizing apparatuses, that is, the aluminum foils 10 are not vertical but have slopes, that is, two planes of the cathode and the anode are not parallel, and since the aluminum foils 10 are anodes in the energizing electrolytic bath 12, there is a need for uniform current distribution, the distance between the anode and the cathode must be adjusted, and the same is true in the power supply feed tank, in order to adjust the distance between the anode and the cathode to enable the aluminum foils 10 passing through each anode and cathode to be in a vertical state, so that the current distribution on the aluminum foils 10 is uniform, the electrode section is improved, and the structure of the expanding electrode applied to the aluminum foil linkage energizing production apparatus is schematically shown in fig. 2.
As can be seen from comparison of fig. 1 and 2, the present invention is only improved for the electrode section in the aluminum foil gang energization production apparatus, so the following embodiment will focus on the specific structural configuration aspect of the expansion electrode.
The invention provides an expansion electrode 30, which is applied to aluminum foil linkage energizing equipment; as shown in fig. 2, the dilating electrodes 30 comprise:
the electrode outer frame 302 is provided with a plurality of metal leads 303, so that the external power supply connected with the expansion electrode 30 and the aluminum foil linkage energizing equipment is conducted;
the electrode outer frame 302 is provided with one or two electrode inner frames 304, and a plurality of metal leads 303 extend to the top of the electrode inner frames 304;
an electrode mesh 305 is welded in the electrode inner frame 304, and the metal lead 303 is connected with the electrode mesh 305 and is used for expanding the electrochemical reaction of the electrode 30;
the forced circulation distribution pipe 306 is arranged at the inner side and the bottom of the electrode outer frame 302, is connected with the electrolyte temperature adjusting tank 13 of the aluminum foil linkage energizing device through a liquid inlet pipe 15, and guides the electrolyte in the electrolyte temperature adjusting tank 13 to the expansion electrode 30;
an electrode expansion adjustment member is disposed outside the electrode outer frame 302 and connected to the electrode outer frame 302 and the electrode inner frame 304, respectively, for effecting expansion and contraction of the expansion electrode 30.
Specifically, the original flat plate electrode is changed into an expanded electrode using a metal mesh plate, an electrode outer frame 302 is connected with an electrode inner frame 304, an electrode mesh 305 is welded on the electrode inner frame 304, the electrode mesh 305 is connected with a metal wire 303 arranged on the electrode outer frame 302, and the expanded electrode 30 is electrically connected with an external power supply connected with an aluminum foil linkage energizing device, so that the electrode mesh 305 is electrified.
An electrode expansion adjusting component is arranged outside the electrode outer frame 302, one end of the component is fixed on the electrode outer frame 302, the other end of the component is movable on the fixed electrode inner frame 304, the electrode inner frame 304 takes the electrode outer frame 302 as an axis to perform outward expansion and inward contraction movement, expansion and contraction of the expansion electrode 30 are realized, and the electrode distance between the electrodes is reduced. When the expansion electrode 30 expands outwards, before production, when the aluminum foil 10 needs to be threaded, the expansion electrode 30 contracts inwards, the electrode polar distance is expanded, the aluminum foil 10 can conveniently thread around the middle of the expansion electrode 30 through the roller 19, when production equipment operates in a linkage mode, the expansion electrode 30 expands outwards, and the electrode polar distance is reduced.
And a forced circulation distribution pipe 306 is arranged in the expanded electrode 30, so that the forced circulation distribution pipe is tightly attached to the inner side wall and the bottom of the electrode outer frame 302 in a 90-degree mode, and is connected with an external liquid inlet pipe 15 to guide the electrolyte in the electrolyte temperature adjusting tank 13 to the expanded electrode 30, thereby solving the problem that bubbles generated on the electrode mesh 305 are diffused to the periphery when the electrode distance is reduced for electrolysis.
Specifically, the electrode outer frame 302 and the electrode inner frame 304 are generally frames made of metal profiles, and the thickness of the frames can be adjusted according to the product.
Specifically, the forced circulation distribution pipe 306 is generally made of a PVC rigid plastic pipe.
In a preferred embodiment, as shown in fig. 2 and 3, the electrode expansion adjustment member comprises:
an expansion adjusting shaft 301, wherein the expansion adjusting shaft 301 is horizontally fixed on the top end of the electrode outer frame 302 through two shaft seats 307, and is provided with two groups of gear sets;
two screws 309, the screws 309 are vertically fixed at the bottom end of the electrode outer frame 302 through two screw seats 310 and are positioned at two sides of the electrode inner frame 304, each screw 309 is vertically connected with the expansion adjusting shaft 301 and is driven by the gear set;
the first gear 308 and the second gear 311 of the gear set are arranged at positions which are mutually vertical and corresponding;
the expansion adjusting shaft 301 and the two screws 309 are mutually meshed through a first gear 308 and a second gear 311 to realize transmission;
each screw 309 is also provided with:
the two sliding nuts 312, the sliding nuts 312 are sleeved on the screw 309, so that the rotation of the screw 309 drives the sliding nuts 312 to move linearly up and down;
the two sliding sleeves 313 are sleeved on the screw 309 and respectively located below each sliding nut 312, and two ends of each sliding sleeve 313 are respectively fixed on the screw through a positioning nut 314, so that the rotation of the screw 309 causes the distance between the sliding nut 312 and the sliding sleeve 313 to change;
two connecting members 320, each connecting member 320 connects the sliding nut 312, the sliding sleeve 313 and the electrode inner frame 304, and the electrode inner frame 304 is expanded and contracted by rotating the expansion adjustment shaft 301.
Specifically, two screws 309 are respectively arranged on two sides of the electrode outer frame 302, the second gear 311 is arranged at the top ends of the screws 309, the two first gears 308 are arranged on the expansion adjusting shaft 301 in a penetrating manner, the positions of the two first gears are vertically corresponding to the positions of the second gears 311, and the gears on the second gears 311 are meshed with the gears of the first gears 308 to transmit the rotating force applied to the expansion adjusting shaft 301 to the screws 309.
Specifically, an upper sliding nut 312 and a lower sliding nut 312 are arranged on one screw 309, a sliding sleeve 313 is arranged below each sliding nut 312, and the sliding sleeve 313 is fixed on the screw 309 through an upper positioning nut 314 and a lower positioning nut 314 and cannot slide. Each screw 309 is also provided with two connecting pieces 320 which are respectively positioned at two ends of the screw, two diagonal points on each connecting piece 320 are respectively fixed on the sliding nut 312 and the sliding sleeve 313, and other points are fixed on the electrode inner frame 304, so that when the expansion adjusting shaft 301 is rotated, the screw 309 rotates along with the screw, and the sliding nut 312 which moves up and down linearly on the screw and the fixed sliding sleeve 313 drive the connecting piece 320 to open or close.
Specifically, when the expansion adjustment shaft 301 is rotated clockwise, the sliding nut 312 moves linearly downward, approaches the sliding sleeve 313, the connection member 320 is closed, and the connection rod of the connection member 320 pushes the electrode inner frame 304 to expand outward; conversely, when the adjusting shaft 301 is rotated and expanded counterclockwise, the sliding nut 312 moves linearly upward, away from the sliding sleeve 313, the connecting member 320 is opened, and the connecting rod of the connecting member 320 pulls the electrode inner frame 304 back to contract inward.
Specifically, one dilating electrode 30 requires two screws 309, four sliding nuts 312, four sliding sleeves 313, eight positioning nuts 314, and four connectors 320.
In a preferred embodiment, as shown in fig. 4, when one electrode inner frame 304 is disposed on either side of the electrode outer frame 302, the connecting member 320 includes:
a first link 321, one end of the first link 321 is connected with the sliding nut 312, and the other end is connected with the electrode inner frame 304;
a second connecting rod 322, one end of the second connecting rod 322 is connected with the sliding sleeve 313, and the other end is connected with the first connecting rod 321;
the expansion and contraction of the electrode inner frame 304 is supported by the connection of the first link 321 and the second link 322.
Specifically, the expansion electrodes 30 arranged in the power feeding slot 11 and the aluminum foil energization slots 12, the expansion electrodes 30 at the head and the tail thereof are provided with only one electrode inner frame 304 for cost saving, that is, only one electrode mesh is required. In this case, the connection member 320 requires the first link 321 and the second link 322 to form a triangular structural member, which is fixed to the sliding nut 312 at one point, to the sliding sleeve 313 at one point, and to the electrode inner frame 304 at another point, and drives the first link 321 and the second link 322 to be closed and opened along with the up-and-down linear movement of the sliding nut 312, thereby supporting the electrode inner frame 304 to be expanded and contracted outwardly and inwardly.
In a preferred embodiment, as shown in fig. 4, when another electrode inner frame 304 is further disposed on the other side of the electrode outer frame 302, the connecting member 302 further comprises:
a third connecting rod 323, one end of the third connecting rod 323 is connected with the other electrode inner frame 304, and the other end is connected with the second connecting rod 322;
a fourth link 324, one end of which is connected to the first link 321 and the other end of which is connected to the third link 323;
the expansion and contraction of the other electrode inner frame 304 is supported by the connection of the third link 323 and the fourth link 324.
Specifically, the expansion electrodes 30 arranged in the power feeding slot 11 and the aluminum foil energization slots 12 are provided with only one electrode inner frame 304 except for the head and tail expansion electrodes 30, and the remaining expansion electrodes 30 are provided with one electrode inner frame 304 on each of the right and left sides of the electrode outer frame 302. In this case, the connecting member 320 requires a third link 323 and a fourth link 324 having the same structure as the first link 321 and the second link 322 in addition to the first link 321 and the second link 322 to form a rectangular structural member. One end of the third link 323 and one end of the fourth link 324 are fixed to the sliding nut 312 connected to the first link 321 and the sliding sleeve 313 connected to the second link 322, respectively, and the other ends are connected to each other, and also the third link 323 and the fourth link 324 are driven to close and open by the up and down linear movement of the sliding nut 312, thereby supporting the other electrode inner frame 304 to expand outward and contract inward.
In a preferred embodiment, as shown in fig. 2, the forced circulation distribution pipe 306 has a forced circulation liquid inlet 315 near the top end of the electrode outer frame 302 for connecting with the liquid inlet pipe, and a plurality of forced circulation liquid outlets 316 near the bottom end of the electrode outer frame 302 for allowing the electrolyte to flow from the forced circulation liquid inlet 315 into the extension electrode 30 by the action of the circulation pump 14 and to be sprayed upwards out through the forced circulation liquid outlets 316.
Specifically, the forced circulation distribution pipe 306 at the bottom of the expanded electrode 30 is provided with a plurality of forced circulation liquid outlets 316 arranged in a straight line, so that when the forced circulation liquid moves upwards, bubbles generated at the cathode and the anode of the expanded electrode can be released rapidly through the forced circulation liquid outlets 316, thereby reducing the degree of charge of the electrolyte between the two electrodes.
In a preferred embodiment, the electrode mesh 305 has a mesh thickness of 1-3 mm.
In a preferred embodiment, the mesh area of the electrode mesh 305 is 5-25 square millimeters.
In a preferred embodiment, the ratio of the mesh area of electrode mesh 305 to the metal area of electrode mesh 305 is 3: 7 to 4: 6.
Specifically, the electrode mesh characteristics such as the mesh thickness, the mesh area, and the ratio between the mesh area and the metal area of the electrode mesh 305 welded to the electrode inner frame 304 are adjusted according to the aluminum foil product characteristics of the product line.
Generally, it is preferable to use metal titanium TA1 or TA2 for the electrode mesh 305 and the corresponding anode member in the expanded electrode 30 in the power feeding tank 11 of the aluminum foil linkage energizing apparatus, and SUS316 stainless steel is used for the electrode mesh 305 and the corresponding cathode member in the expanded electrode 30 in the aluminum foil energizing tank 12. The surface of the anode titanium mesh is coated with a noble metal oxide coating. The cathode stainless steel net needs to be activated so as to reduce hydrogen absorption overpotential during electrolysis.
In a preferred embodiment, as shown in fig. 5 and 6, an aluminum foil linkage energizing apparatus includes the above-described diverging electrode 30, the aluminum foil linkage energizing apparatus including:
a power supply feed tank 11, wherein the power supply feed tank 11 is provided with a plurality of expansion electrodes 30 which are connected in parallel, and the expansion electrodes 30 of the power supply feed tank are connected with the anode of a direct current power supply;
the aluminum foil energizing slot 12 is provided with a plurality of expansion electrodes 30 which are connected in parallel, and the expansion electrodes 30 of the aluminum foil energizing slot 12 are connected with the negative electrode of a direct-current power supply;
two electrolyte temperature adjusting tanks 11, wherein the electrolyte temperature adjusting tanks 11 are respectively connected with the forced circulation distribution pipes in the power supply feeding tank 11 and the aluminum foil energizing tank 12 through circulating pumps 14, so that the electrolyte in the electrolyte temperature adjusting tanks 11 is forced to circulate.
Specifically, the conventional aluminum foil linkage energized production equipment is not greatly changed, only the electrode part is redesigned, and the original flat plate electrode is changed into the box-type expansion electrode 30.
To sum up, the aluminum foil linkage energizing equipment is used for production, the aluminum foil transmission operation depends on the rotation of the rollers, the aluminum foil 10 sequentially passes through each roller 19 and the expansion electrode 30 before the operation is started, so the electrode distance is too small, the operation is very difficult and troublesome, the problem is well solved by the invention, when the aluminum foil 10 needs to be passed, the expansion electrode 30 contracts to expand the electrode distance, the aluminum foil 10 can conveniently pass through the middle of the two expansion electrodes 30, and when the production equipment is used for linkage operation, the expansion electrode 30 expands to reduce the electrode distance. The electrolyte in the electrolyte temperature adjusting tank 13 is forced to circulate and guided into a forced circulation liquid inlet 315 in the electrode frame through a circulating pump 14, and then is upwards sprayed through a forced circulation liquid outlet 316 at the bottom of the electrode frame, so that the problem that bubbles generated by reduction of the electrode distance are diffused to the periphery is well solved, and the electrolyte bubbles between the electrodes can be well and quickly released by upwards moving the forced circulation liquid at the bottom of the expanded electrode 30, and the aim of reducing the aeration degree of the electrolyte between the two electrodes is achieved. The expansion electrode of the invention can reduce the electrode distance and the cell voltage, and the electrode has better current distribution uniformity. The expansion electrode is suitable for various aluminum foil linkage energization generating devices, such as pre-energization, low-voltage energization, medium-voltage energization, high-voltage energization, multi-stage linkage energization and the like.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. An expansion electrode is applied to an aluminum foil linkage energizing device; characterized in that said dilating electrode comprises:
the electrode outer frame is provided with a plurality of metal leads, so that the expansion electrode is connected with an external power supply connected with the aluminum foil linkage energizing equipment;
the electrode outer frame is provided with an electrode inner frame, and the plurality of metal leads extend to the top of the electrode inner frame;
an electrode net is welded in the electrode inner frame, and the electrode inner frame is connected with the electrode net and used for the electrochemical reaction of the expansion electrode;
the forced circulation distribution pipe is arranged on the inner side and the bottom of the electrode outer frame, is connected with an electrolyte temperature adjusting tank of the aluminum foil linkage energizing equipment through a liquid inlet pipe, and guides the electrolyte in the electrolyte temperature adjusting tank into the expansion electrode;
and the electrode expansion adjusting component is arranged on the outer side of the electrode outer frame, is respectively connected with the electrode outer frame and the electrode inner frame and is used for realizing the expansion and contraction of the expansion electrode.
2. An expansion electrode according to claim 1, wherein the electrode expansion adjustment member comprises:
the expansion adjusting shaft is horizontally fixed at the top end of the electrode outer frame through two shaft seats and is sequentially provided with two groups of gear sets;
the two screws are vertically fixed at the bottom end of the electrode outer frame through two screw seats and positioned at two sides of the electrode inner frame, and each screw is vertically connected with the expansion adjusting shaft and is driven by the gear set;
the arrangement positions of a first gear and a second gear of the gear set are mutually vertical and corresponding;
the expansion adjusting shaft and the two screw rods are mutually meshed through the first gear and the second gear to realize transmission;
each screw rod is also provided with:
the two sliding nuts are sleeved on the screw rod, so that the rotation of the screw rod drives the sliding nuts to move linearly up and down;
the two sliding sleeves are sleeved on the screw rod and are respectively positioned below each sliding nut, and two ends of each sliding sleeve are respectively fixed on the screw rod through a positioning nut, so that the rotation of the screw rod causes the distance between each sliding nut and the corresponding sliding sleeve to change;
and each connecting piece is connected with the sliding nut, the sliding sleeve and the electrode inner frame, and the expansion and contraction of the electrode inner frame are driven by rotating the expansion adjusting shaft.
3. An expander electrode as claimed in claim 2, wherein one side of said outer electrode frame is provided with an inner electrode frame, and said connecting member comprises:
one end of the first connecting rod is connected with the sliding nut, and the other end of the first connecting rod is connected with the electrode inner frame;
one end of the second connecting rod is connected with the sliding sleeve, and the other end of the second connecting rod is connected with the first connecting rod;
the expansion and contraction of the electrode inner frame is supported by the connection of the first link and the second link.
4. An expansion electrode according to claim 3, wherein the other side of the outer electrode frame is provided with another inner electrode frame, and the connecting member further comprises:
one end of the third connecting rod is connected with the other electrode inner frame, and the other end of the third connecting rod is connected with the first connecting rod;
one end of the fourth connecting rod is connected with the second connecting rod, and the other end of the fourth connecting rod is connected with the third connecting rod;
the expansion and contraction of the other electrode inner frame is supported by the connection of the third link and the fourth link.
5. An expander electrode as claimed in claim 1, wherein said forced circulation distribution pipe has a forced circulation fluid inlet connected to said fluid inlet pipe near the top end of said electrode outer frame, and a plurality of forced circulation fluid outlets near the bottom end of said electrode outer frame, so that said electrolyte is supplied to said expander electrode from said forced circulation fluid inlet by a circulation pump and is ejected upward through said forced circulation fluid outlets.
6. An expander electrode according to claim 1, wherein the web thickness of the electrode web is in the range of 1 to 3 mm.
7. An expander electrode according to claim 1, in which the mesh area of the electrode mesh is between 5 and 25 square millimetres.
8. An expander electrode according to claim 1, wherein the ratio between the mesh area of the electrode mesh and the metal area of the electrode mesh is in the range of 3: 7 to 4: 6.
9. An aluminum foil linkage energizing apparatus comprising the expansion electrode of any one of claims 1-8, the aluminum foil linkage energizing apparatus comprising:
the power supply feeding groove is provided with a plurality of the expansion electrodes which are connected in parallel, and the expansion electrodes of the power supply feeding groove are connected with the positive electrode of a direct current power supply;
the aluminum foil energizing slot is provided with a plurality of expansion electrodes connected in parallel, and the expansion electrodes of the aluminum foil energizing slot are connected with the negative electrode of a direct-current power supply;
the two electrolyte temperature adjusting tanks are respectively connected with the power supply feed tank and the forced circulation distribution pipes in the aluminum foil energizing tank through the circulating pumps, so that the electrolyte in the electrolyte temperature adjusting tanks is forced to circulate.
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| CN202110179376.3A CN112992559B (en) | 2021-02-09 | 2021-02-09 | Expansion electrode applied to aluminum foil linkage energizing equipment |
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| CN202110179376.3A CN112992559B (en) | 2021-02-09 | 2021-02-09 | Expansion electrode applied to aluminum foil linkage energizing equipment |
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| CN112992559B true CN112992559B (en) | 2022-07-01 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2853815Y (en) * | 2005-11-30 | 2007-01-03 | 上海飞乐天和电极箔有限公司 | Bottom spray system of aluminium foil corrosion production line |
| CN104157458A (en) * | 2014-08-20 | 2014-11-19 | 吴江飞乐天和电子材料有限公司 | Aluminium electrolytic capacitor formed foil production method |
| CN112185716A (en) * | 2020-10-23 | 2021-01-05 | 安徽普冈电子材料有限公司 | Electrode foil formation device |
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2021
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2853815Y (en) * | 2005-11-30 | 2007-01-03 | 上海飞乐天和电极箔有限公司 | Bottom spray system of aluminium foil corrosion production line |
| CN104157458A (en) * | 2014-08-20 | 2014-11-19 | 吴江飞乐天和电子材料有限公司 | Aluminium electrolytic capacitor formed foil production method |
| CN112185716A (en) * | 2020-10-23 | 2021-01-05 | 安徽普冈电子材料有限公司 | Electrode foil formation device |
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