CN111540624A - Impregnation technology for aluminium electrolytic capacitor - Google Patents
Impregnation technology for aluminium electrolytic capacitor Download PDFInfo
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- CN111540624A CN111540624A CN202010436247.3A CN202010436247A CN111540624A CN 111540624 A CN111540624 A CN 111540624A CN 202010436247 A CN202010436247 A CN 202010436247A CN 111540624 A CN111540624 A CN 111540624A
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- 238000005470 impregnation Methods 0.000 title claims abstract description 83
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 42
- 239000003990 capacitor Substances 0.000 title claims abstract description 42
- 238000005516 engineering process Methods 0.000 title description 4
- 239000004411 aluminium Substances 0.000 title description 3
- 239000011888 foil Substances 0.000 claims abstract description 144
- 238000001035 drying Methods 0.000 claims abstract description 57
- 238000000034 method Methods 0.000 claims abstract description 38
- 238000004804 winding Methods 0.000 claims abstract description 37
- 230000008569 process Effects 0.000 claims abstract description 35
- 239000003792 electrolyte Substances 0.000 claims description 41
- 238000010438 heat treatment Methods 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 11
- 238000010030 laminating Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 3
- 230000032258 transport Effects 0.000 description 6
- 239000000428 dust Substances 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000002791 soaking Methods 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
- H01G13/04—Drying; Impregnating
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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
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/022—Electrolytes; Absorbents
- H01G9/035—Liquid electrolytes, e.g. impregnating materials
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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
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/145—Liquid electrolytic capacitors
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- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The application relates to the technical field of aluminum electrolytic capacitor manufacturing, and provides a novel impregnation process for an aluminum electrolytic capacitor, which comprises the following steps: drying: respectively drying the electrolytic paper, the positive electrode foil and the negative electrode foil; impregnation: uniformly impregnating the dried electrolytic paper; conveying: conveying the impregnated electrolytic paper, the dried positive electrode foil and the dried negative electrode foil to a winding device respectively; winding: the electrolytic paper is arranged between the positive electrode foil and the negative electrode foil, and is sequentially laminated, and the electrolytic paper, the positive electrode foil and the negative electrode foil are wound into a core package through a winding device. The new impregnation process for the aluminum electrolytic capacitor, provided by the application, can integrate winding and impregnation, is simple in preparation process, good in impregnation effect, low in industrialization cost, beneficial to improving economic benefits and reducing labor cost.
Description
Technical Field
The application belongs to the technical field of aluminum electrolytic capacitor manufacturing, and particularly relates to a novel impregnation process of an aluminum electrolytic capacitor.
Background
At present, the manufacturing process of the aluminum electrolytic capacitor generally comprises the steps of firstly rolling the core package by the electrolytic paper, the anode foil and the cathode foil, and then putting the rolled core package into a vacuumized impregnation cylinder in large batch for impregnation. In the actual production process, the impregnation method is easy to cause uneven impregnation of the electrolyte, the impregnation time is long, and the lead terminal is easy to deform and pollute when the core package is soaked in the electrolyte for a long time. Meanwhile, the large-scale impregnation is adopted, and the time for exposing the impregnated core package in the air is long after the impregnation and before the assembly, so that harmful impurities in the air can pollute the core package. In addition, the impregnation method has extremely high requirements on impregnation equipment, is complex to operate and is not easy to realize online automatic production.
Disclosure of Invention
The embodiment of the application aims to provide a novel impregnation process for an aluminum electrolytic capacitor, so as to solve the technical problems of long impregnation time and uneven impregnation of the aluminum electrolytic capacitor in the traditional technology.
In order to achieve the purpose, the technical scheme adopted by the application is as follows: the new impregnation process for the aluminum electrolytic capacitor comprises the following steps:
drying: respectively drying the electrolytic paper, the positive electrode foil and the negative electrode foil;
impregnation: uniformly impregnating the dried electrolytic paper;
conveying: conveying the impregnated electrolytic paper, the dried positive electrode foil and the dried negative electrode foil to a winding device respectively;
winding: and arranging the electrolytic paper between the anode foil and the cathode foil, sequentially laminating, and winding the electrolytic paper, the anode foil and the cathode foil into a core package through a winding device.
In a possible embodiment, in the drying step, the electrolytic paper, the positive electrode foil and the negative electrode foil are respectively tensioned, and the electrolytic paper, the positive electrode foil and the negative electrode foil respectively pass through the middle of three drying devices in a uniform speed manner to perform drying treatment.
In a possible embodiment, the drying temperature of the electrolytic paper, the positive electrode foil and the negative electrode foil in the drying device is 100-120 ℃.
In a possible embodiment, the speed of the electrolytic paper, the positive electrode foil and the negative electrode foil passing through the drying device is 10-100 m/min.
In a possible embodiment, the speed of the electrolytic paper, the positive electrode foil and the negative electrode foil passing through the drying device is 30-80 m/min.
In a possible embodiment, the impregnation step comprises:
pouring the electrolyte into an electrolytic cell provided with a tensioning wheel, wherein the height of the electrolyte is two thirds of the height of the electrolytic cell;
sequentially winding the electrolytic paper on each tension wheel, and at least partially positioning the electrolytic paper below the liquid level of the electrolyte under the guidance of the tension wheels;
a heating rod is arranged at the bottom of the electrolytic cell to heat the electrolyte;
the electrolytic paper passes through an electrolytic bath at a constant speed of 5-80m/min for impregnation.
In a possible embodiment, two first tensioning wheels and two second tensioning wheels are arranged in the electrolytic cell, wherein the two first tensioning wheels are arranged on the liquid level of the electrolyte in parallel at intervals, the two second tensioning wheels are arranged below the liquid level of the electrolyte in parallel at intervals, and the electrolytic paper is wound on the first tensioning wheels and the second tensioning wheels respectively.
In a possible embodiment, the heating temperature of the heating rod is 30-60 ℃;
the electrolytic paper passes through the electrolytic cell at a constant speed of 20-60 m/min.
In a possible embodiment, the electrolytic paper is pressed by a squeeze roll before passing out of the electrolytic cell to make the electrolyte distribution on the electrolytic paper uniform.
In a possible embodiment, the drying, impregnation and conveying of the electrolytic paper to a winding device share the same conveying device for conveying; the drying and conveying of the positive electrode foil to a winding device share the same conveying device for conveying; and the drying and conveying of the negative electrode foil to the winding device share the same conveying device for conveying.
The novel impregnation process for the aluminum electrolytic capacitor has the beneficial effects that: the new impregnation process for the aluminum electrolytic capacitor provided by the embodiment of the application has the advantages that the electrolytic paper, the positive electrode foil and the negative electrode foil are respectively dried, and the drying effect is good. The electrolytic paper is impregnated firstly and then wound with the positive electrode foil and the negative electrode foil to the winding core, namely the electrolytic paper can be independently impregnated, and because the electrolytic paper is in a tensioning state and two sides of the electrolytic paper are not attached to the positive electrode foil or the negative electrode foil, the electrolytic paper can be sufficiently impregnated, and the impregnation is more uniform; and the impregnation efficiency is high, the impregnation time is short, the requirement on impregnation equipment is not high, the operation is simple, and the automatic production is easy to realize. Because the electrolytic paper is soaked separately, the anode foil, the cathode foil and the lead terminal do not need to be soaked in the electrolyte for a long time, and the lead terminal cannot be deformed and polluted. The novel impregnation process for the aluminum electrolytic capacitor can integrate winding and impregnation, is simple in preparation process, good in impregnation effect and low in industrialization cost, is beneficial to improving economic benefits, and reduces labor cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments or the conventional technology will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without any creative effort.
Fig. 1 is a schematic flow chart of a new impregnation process for an aluminum electrolytic capacitor provided in an embodiment of the present application;
FIG. 2 is a schematic flow chart of the impregnation step in FIG. 1;
fig. 3 is a schematic structural diagram of an electrolytic cell used in a new impregnation process of an aluminum electrolytic capacitor according to an embodiment of the present application.
Wherein, in the figures, the respective reference numerals:
100. electrolyzing paper; 1. an electrolytic cell; 11. a paper outlet; 12. a paper inlet; 2. a first tensioning wheel; 3. a second tensioning wheel; 4. and (4) extruding the roller.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1, a new impregnation process for an aluminum electrolytic capacitor according to an embodiment of the present application will now be described. The novel impregnation process of the aluminum electrolytic capacitor is used for manufacturing the aluminum electrolytic capacitor.
Specifically, the novel impregnation process for the aluminum electrolytic capacitor comprises the following steps:
s10: drying: respectively drying the electrolytic paper 100, the positive electrode foil and the negative electrode foil;
specifically, the electrolytic paper 100, the positive foil and the negative foil are exposed to the air in the manufacturing process, the air contains moisture, the moisture contains impurities such as salt, dust and the like, and when the moisture in the air is attached to the electrolytic paper 100, the positive foil or the negative foil, the quality of the core package is affected, and finally, the performance and the safety of the aluminum electrolytic capacitor are significantly affected. Therefore, by drying the electrolytic paper 100, the positive electrode foil, and the negative electrode foil, respectively, the performance and the safety of use of the entire aluminum electrolytic capacitor can be improved.
S20: impregnation: uniformly impregnating the dried electrolytic paper 100;
specifically, the electrolytic paper 100 alone is impregnated, that is, the electrolytic paper 100 is impregnated with the water without the positive electrode foil and the negative electrode foil on the upper and lower sides thereof, so that the electrolytic paper 100 can be impregnated sufficiently. The purpose of impregnation is to make the electrolytic paper 100 sufficiently adsorb the electrolyte, so that the surfaces of the positive electrode foil and the negative electrode foil located on both sides of the electrolytic paper 100 are impregnated with the electrolyte. In order to prevent the water attached to the electrolytic paper 100 from being mixed with the electrolyte during the manufacturing process and then not being completely treated, the electrolytic paper 100 is dried and then subjected to impregnation treatment.
S30: conveying: conveying the impregnated electrolytic paper 100, the dried positive electrode foil and the dried negative electrode foil to a winding device respectively;
specifically, the electrolytic paper 100 needs to be dried and then impregnated, and the positive electrode foil and the negative electrode foil only need to be dried, so that the electrolytic paper 100, the positive electrode foil, and the negative electrode foil need to be separately treated and then respectively conveyed to the winding device by the conveying device.
S40: winding: the electrolytic paper 100 is arranged between the positive electrode foil and the negative electrode foil, and is sequentially laminated, and the electrolytic paper 100, the positive electrode foil and the negative electrode foil are wound into a core package by a winding device.
In the new impregnation process for the aluminum electrolytic capacitor in the embodiment, the electrolytic paper 100, the positive electrode foil and the negative electrode foil are respectively dried, so that the drying effect is good. The impregnation treatment is performed on the electrolytic paper 100, and then the electrolytic paper 100 is wound with the positive electrode foil and the negative electrode foil to the winding core, that is, the electrolytic paper 100 can be subjected to the impregnation treatment alone, and because the electrolytic paper 100 is in a tensioned state and both sides of the electrolytic paper 100 are not attached to the positive electrode foil or the negative electrode foil, the electrolytic paper 100 can be sufficiently impregnated, and the impregnation is more uniform; and the impregnation efficiency is high, the impregnation time is short, the requirement on impregnation equipment is not high, the operation is simple, and the automatic production is easy to realize. Since the electrolytic paper 100 is impregnated alone, the positive electrode foil, the negative electrode foil, and the lead terminal do not need to be soaked in the electrolyte for a long time, and the lead terminal is not deformed and contaminated. The novel impregnation process for the aluminum electrolytic capacitor can integrate winding and impregnation, is simple in preparation process, good in impregnation effect and low in industrialization cost, is beneficial to improving economic benefits, and reduces labor cost.
In a specific embodiment, in the drying step, the electrolytic paper 100, the positive electrode foil and the negative electrode foil are respectively tensioned, and the electrolytic paper 100, the positive electrode foil and the negative electrode foil are respectively passed through the middle of the three drying devices at a constant speed to perform the drying process.
That is, the electrolytic paper 100 is flatly stretched, and then the electrolytic paper 100 is passed through the middle of a drying device in a stretched state and at a uniform speed to be dried. The tension of the electrolytic paper 100 can tension the electrolytic paper 100 by means of a tension wheel, and the transport of the electrolytic paper 100 can be carried out by a transport device. By tensioning the electrolytic paper 100 and conveying the electrolytic paper at a constant speed, the electrolytic paper 100 can be dried uniformly at any position, and the drying effect is better.
Similarly, the positive electrode foil and the negative electrode foil are respectively flattened and tensioned, and then the positive electrode foil and the negative electrode foil respectively pass through the middle of the other two drying devices in a tensioned state and in a uniform speed manner to be dried. Similarly, the positive electrode foil and the negative electrode foil can be tensioned by the tension roller, and the positive electrode foil and the negative electrode foil can be conveyed by the conveyor. Finally, the positive foil and the negative foil are dried more uniformly, and the drying effect is better.
In addition, compare in the traditional mode of drying the whole core package, this application is dried electrolytic paper 100, positive foil and negative foil alone, and make electrolytic paper 100, positive foil and negative foil all dry with the mode of tensioning, make electrolytic paper 100, positive foil and negative foil dry more evenly, the stoving effect is better, the effect of salinity and dust in the removal moisture is better, and then make the aluminium electrolytic capacitor's of making better performance, it is safer to use.
In a specific embodiment, the drying temperature of the electrolytic paper 100, the positive foil and the negative foil in the drying device is 120 ℃, and tests prove that the drying temperature not only can well remove moisture, salt and dust therein, but also can not affect the performance of the electrolytic paper 100, the positive foil and the negative foil. It should be understood that, in other embodiments of the present application, the drying temperature of the electrolytic paper 100, the positive electrode foil and the negative electrode foil may be 100 ℃, 110 ℃ or the like according to actual drying requirements, and may be within a range of 100 ℃ to 120 ℃, and the drying temperature of the electrolytic paper 100, the positive electrode foil and the negative electrode foil may be different according to their own performance, and is not limited herein.
In a specific embodiment, the speed of the electrolytic paper 100, the positive foil and the negative foil passing through the drying device is 10-100m/min, that is, in the drying device, the electrolytic paper 100, the positive foil and the negative foil move at a constant speed and move forward 10-100 meters every minute. The electrolytic paper 100, the positive foil and the negative foil can be dried to the best effect according to actual needs by limiting the residence time of the electrolytic paper 100, the positive foil and the negative foil in the drying device, and the electrolytic paper 100, the positive foil and the negative foil are dried in a moving mode, so that the electrolytic paper 100, the positive foil and the negative foil are all suitable for the streamline process, the winding process of the aluminum electrolytic capacitor can realize automatic production of connecting lines, and the winding process efficiency is higher. Further, it is understood that the speeds of the electrolytic paper 100, the positive electrode foil and the negative electrode foil passing through the drying device may be different depending on the structural properties of the electrolytic paper 100, the positive electrode foil and the negative electrode foil.
In a more specific embodiment, experiments prove that when the speed of the electrolytic paper 100, the positive electrode foil and the negative electrode foil passing through the drying device is 30-80m/min, the drying effect of the electrolytic paper 100, the positive electrode foil and the negative electrode foil is better, and the performance of the finally manufactured aluminum electrolytic capacitor is better. In fact, the speed of the electrolytic paper 100, the positive electrode foil and the negative electrode foil passing through the drying device may be 30m/min, 40m/min, 50m/min, 60m/min, 70m/min or 80 m/min. In addition, in other embodiments of the present application, the speed of the electrolytic paper 100, the positive electrode foil and the negative electrode foil passing through the drying device may be 10m/min, 20m/min, 90m/min or 100m/min, depending on the actual performance requirement of the aluminum electrolytic capacitor, which is not limited herein.
In a specific embodiment, the drying device adopts an electric heating rod for heating, and the heating power of the electric heating rod is 10 KW. The heating rod is used for heating, and the heating rod is simple in structure, low in cost and low in power consumption.
In an embodiment, referring to fig. 2, the impregnation step S20 includes:
s21: pouring the electrolyte into an electrolytic cell 1 provided with a tensioning wheel, and enabling the height of the electrolyte to be two thirds of the height of the electrolytic cell 1;
specifically, referring to fig. 3, a tension wheel is disposed in the electrolytic tank 1, and a paper inlet 12 and a paper outlet 11 are disposed on both sides of the electrolytic tank 1 to allow the electrolytic paper 100 to enter and exit the electrolytic tank 1. The number of the tension pulleys can be set according to the actual size of the electrolytic bath 1, and at least one tension pulley is positioned below the liquid level of the electrolyte, preferably, the tension pulley is positioned below half of the height of the electrolytic bath 1, so that the electrolytic paper 100 can be fully immersed in the electrolyte. In addition, the height of the electrolyte is set to be two thirds of the height of the electrolytic tank 1, so that the height of the electrolyte is high enough, the electrolytic paper 100 can be completely immersed, the electrolyte is not required to be frequently added, meanwhile, the height of one third is reserved, the electrolyte is prevented from flowing out from the paper inlet 12 and the paper outlet 11 of the electrolytic tank 1, and then the electrolytic paper 100 is conveniently conveyed in the electrolytic tank 1, and the uniform conveying of the electrolytic paper 100 in the electrolytic tank 1 is ensured.
S22: sequentially winding the electrolytic paper 100 on each tension wheel, and at least partially positioning the electrolytic paper below the liquid level of the electrolyte under the guidance of the tension wheels;
specifically, the electrolytic paper 100 is tensioned by the tension roller, so that the electrolytic paper 100 passes through the electrolyte in a tensioned state, thereby enhancing the impregnation efficiency of the electrolytic paper 100 and achieving uniform impregnation.
In a more specific embodiment, two first tensioning wheels 2 and two second tensioning wheels 3 are arranged in the electrolytic cell 1, the two first tensioning wheels 2 are arranged on the liquid surface of the electrolyte in parallel at intervals, the two second tensioning wheels 3 are arranged below the liquid surface of the electrolyte in parallel at intervals, the two first tensioning wheels 2 are respectively and symmetrically arranged at the outer sides of the two second tensioning wheels 3, and the electrolytic paper 100 is wound on the two first tensioning wheels 2 and the two second tensioning wheels 3 respectively in the manner shown in fig. 3, so that the electrolytic paper 100 is tensioned more uniformly in the electrolytic cell 1, the impregnation of the electrolytic paper 100 is more uniform, and meanwhile, due to the arrangement of the two second tensioning wheels 3 at intervals, the impregnation time of the electrolytic paper 100 under the liquid surface is longer, the electrolytic paper 100 can be impregnated fully, and the impregnation effect is better. It is understood that in other embodiments of the present application, one, three or more than three first tensioning wheels 2 and one, three or more than three second tensioning wheels 3 may be provided in the electrolytic cell 1 according to the actual situation and the specific requirements, which are not limited herein.
S23: a heating rod is arranged at the bottom of the electrolytic cell 1 to heat the electrolyte;
electrolyte is heated by the heating rod, so that the impregnation speed of the electrolytic paper 100 can be increased, the impregnation efficiency of the electrolytic paper 100 is improved, and the manufacturing efficiency of the aluminum electrolytic capacitor is improved.
In a more specific example, the heating temperature of the heating bar is 30 to 60 ℃, and in fact, the temperature to be heated for impregnation of the electrolytic paper 100 differs according to the type of the electrolytic paper 100, for example, the heating temperature required for impregnation of one type of the electrolytic paper 100 is 30 ℃, the heating temperature required for impregnation of another type of the electrolytic paper 100 is 45 ℃, and the heating temperature required for impregnation of another type of the electrolytic paper 100 is 60 ℃.
S24: the electrolytic paper 100 is passed through the electrolytic bath 1 at a constant speed of 5-80m/min for impregnation.
That is, in the electrolytic bath 1, the electrolytic paper 100 moves at a constant speed and moves forward 5 to 80 meters every minute. By limiting the residence time of the electrolytic paper 100 in the electrolytic tank 1, the electrolytic paper 100 can be impregnated to the best effect according to the actual requirement, and by impregnating the electrolytic paper 100 in a moving manner, the impregnation process of the electrolytic paper 100 is suitable for the streamline process, so that the winding process of the aluminum electrolytic capacitor can realize the automatic production of the connecting line, and the efficiency of the winding process is higher.
In a more specific embodiment, the electrolytic paper 100 is passed through the electrolytic cell 1 at a constant speed of 20-60 m/min. Experiments prove that when the electrolytic paper 100 passes through the electrolytic cell 1 at a constant speed of 20-60m/min, the impregnation effect of the electrolytic paper 100 is better, the impregnation is more uniform, and the performance of the finally manufactured aluminum electrolytic capacitor is better. In fact, the speed of the electrolytic paper 100 through the electrolytic cell 1 may be 20m/min, 30m/min, 40m/min, 50m/min or 60 m/min. In addition, in other embodiments of the present application, the speed of the electrolytic paper 100 passing through the electrolytic cell 1 may be 5m/min, 10m/min, 70m/min or 80m/min, depending on the actual performance requirements of the aluminum electrolytic capacitor, which is not limited herein.
In an embodiment, referring to fig. 3, the electrolytic paper 100 is pressed by the pressing roll 4 before passing through the electrolytic bath 1 to make the electrolyte on the electrolytic paper 100 uniformly distributed. Specifically, locate squeeze roll 4 at the exit slot 11 department of electrolysis trough 1, and the quantity of squeeze roll 4 is two, two squeeze roll 4 longitudinal symmetry locate the both sides of electrolysis trough 1, the clearance between two squeeze roll 4 only can supply an electrolytic paper 100 to pass through, when the electrolytic paper 100 that soaks the electrolyte passes through between two squeeze roll 4, the electrolyte after soaking extrudees through squeeze roll 4 earlier, make electrolyte evenly distributed on electrolytic paper 100 through the pressure of squeeze roll 4, if the electrolyte on electrolytic paper 100 is too much, can also press unnecessary electrolyte back to electrolysis trough 1 through squeeze roll 4 simultaneously, thereby avoid extravagant and pollution.
In a specific embodiment, the drying, impregnation and transportation of the electrolytic paper 100 to the winding device share the same transportation device for transportation, that is, the same transportation device transports the electrolytic paper 100 through the drying device at a constant speed, then transports the electrolytic paper 100 through the electrolytic tank 1 at a constant speed, and finally transports the electrolytic paper 100 to the winding device, so that not only the whole transportation process of the electrolytic paper 100 is streamlined, but also the whole transportation process of the electrolytic paper 100 is simple in structure.
Similarly, the drying and conveying of the positive electrode foil to the winding device share the same conveying device for conveying; the drying and conveying of the negative electrode foil to the winding device share the same conveying device for conveying. The entire transport process of the positive electrode foil and the negative electrode foil can also be simplified in structure.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A novel impregnation process for an aluminum electrolytic capacitor is characterized by comprising the following steps: the method comprises the following steps:
drying: respectively drying the electrolytic paper, the positive electrode foil and the negative electrode foil;
impregnation: uniformly impregnating the dried electrolytic paper;
conveying: conveying the impregnated electrolytic paper, the dried positive electrode foil and the dried negative electrode foil to a winding device respectively;
winding: and arranging the electrolytic paper between the anode foil and the cathode foil, sequentially laminating, and winding the electrolytic paper, the anode foil and the cathode foil into a core package through a winding device.
2. The new impregnation process for aluminum electrolytic capacitors according to claim 1, wherein: in the drying step, the electrolytic paper, the positive electrode foil and the negative electrode foil are respectively tensioned, and the electrolytic paper, the positive electrode foil and the negative electrode foil respectively pass through the middle of three drying devices in a constant speed mode to be dried.
3. The new impregnation process for aluminum electrolytic capacitors according to claim 2, wherein: the drying temperature of the electrolytic paper, the anode foil and the cathode foil in the drying device is 100-120 ℃.
4. The new impregnation process for aluminum electrolytic capacitors according to claim 2, wherein: the speed of the electrolytic paper, the anode foil and the cathode foil passing through the drying device is 10-100 m/min.
5. The new impregnation process for aluminum electrolytic capacitors as claimed in claim 4, wherein: the speed of the electrolytic paper, the anode foil and the cathode foil passing through the drying device is 30-80 m/min.
6. The new process for impregnation of aluminum electrolytic capacitor according to any one of claims 1 to 5, wherein: the impregnation step includes:
pouring the electrolyte into an electrolytic cell provided with a tensioning wheel, wherein the height of the electrolyte is two thirds of the height of the electrolytic cell;
sequentially winding the electrolytic paper on each tension wheel, and at least partially positioning the electrolytic paper below the liquid level of the electrolyte under the guidance of the tension wheels;
a heating rod is arranged at the bottom of the electrolytic cell to heat the electrolyte;
the electrolytic paper passes through an electrolytic bath at a constant speed of 5-80m/min for impregnation.
7. The new impregnation process for aluminum electrolytic capacitors according to claim 6, wherein: two first tensioning wheels and two second tensioning wheels are arranged in the electrolytic cell, wherein the two first tensioning wheels are arranged on the liquid level of the electrolyte at intervals in parallel, the two second tensioning wheels are arranged below the liquid level of the electrolyte at intervals in parallel, and the electrolytic paper is wound on the first tensioning wheels and the second tensioning wheels respectively.
8. The new impregnation process for aluminum electrolytic capacitors according to claim 6, wherein: the heating temperature of the heating rod is 30-60 ℃;
the electrolytic paper passes through the electrolytic cell at a constant speed of 20-60 m/min.
9. The new impregnation process for aluminum electrolytic capacitors according to claim 6, wherein: the electrolytic paper is extruded by the extrusion roller before passing out of the electrolytic bath so as to ensure that the electrolyte on the electrolytic paper is uniformly distributed.
10. The new process for impregnation of aluminum electrolytic capacitor according to any one of claims 1 to 5, wherein: drying, impregnating and conveying the electrolytic paper to a winding device to be conveyed by using the same conveying device; the drying and conveying of the positive electrode foil to a winding device share the same conveying device for conveying; and the drying and conveying of the negative electrode foil to the winding device share the same conveying device for conveying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010436247.3A CN111540624A (en) | 2020-05-21 | 2020-05-21 | Impregnation technology for aluminium electrolytic capacitor |
Applications Claiming Priority (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112927935A (en) * | 2021-01-23 | 2021-06-08 | 深圳市凯特电子有限公司 | Anti-lightning stroke electrolytic capacitor and production process thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101007254A (en) * | 2006-01-24 | 2007-08-01 | 百瑞全球有限公司 | Reactor |
| CN105469989A (en) * | 2016-01-21 | 2016-04-06 | 珠海华冠电容器有限公司 | Fabrication method of high-temperature resistant chip aluminum electrolytic capacitor |
| CN105575666A (en) * | 2016-03-15 | 2016-05-11 | 深圳市金联信科技有限公司 | Preparation method of aluminum electrolytic capacitor |
| CN108305786A (en) * | 2017-12-19 | 2018-07-20 | 湖南艾华集团股份有限公司 | Novel electrolytic paper and its manufacturing method and electrolytic capacitor and its manufacturing method |
| CN110993353A (en) * | 2020-01-06 | 2020-04-10 | 深圳市兴创嘉技术有限公司 | Winding method of electrolytic capacitor core cladding |
-
2020
- 2020-05-21 CN CN202010436247.3A patent/CN111540624A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101007254A (en) * | 2006-01-24 | 2007-08-01 | 百瑞全球有限公司 | Reactor |
| CN105469989A (en) * | 2016-01-21 | 2016-04-06 | 珠海华冠电容器有限公司 | Fabrication method of high-temperature resistant chip aluminum electrolytic capacitor |
| CN105575666A (en) * | 2016-03-15 | 2016-05-11 | 深圳市金联信科技有限公司 | Preparation method of aluminum electrolytic capacitor |
| CN108305786A (en) * | 2017-12-19 | 2018-07-20 | 湖南艾华集团股份有限公司 | Novel electrolytic paper and its manufacturing method and electrolytic capacitor and its manufacturing method |
| CN110993353A (en) * | 2020-01-06 | 2020-04-10 | 深圳市兴创嘉技术有限公司 | Winding method of electrolytic capacitor core cladding |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112927935A (en) * | 2021-01-23 | 2021-06-08 | 深圳市凯特电子有限公司 | Anti-lightning stroke electrolytic capacitor and production process thereof |
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