CN111341563B - Capacitor liquid coating device and capacitor preparation method - Google Patents

Capacitor liquid coating device and capacitor preparation method Download PDF

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Publication number
CN111341563B
CN111341563B CN202010422077.3A CN202010422077A CN111341563B CN 111341563 B CN111341563 B CN 111341563B CN 202010422077 A CN202010422077 A CN 202010422077A CN 111341563 B CN111341563 B CN 111341563B
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China
Prior art keywords
liquid
electrolyte
coating
capacitor
electrolytic paper
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CN202010422077.3A
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CN111341563A (en
Inventor
呙德红
谭国彪
张传东
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Shenzhen Chengjie Intelligent Equipment Co Ltd
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Shenzhen Chengjie Intelligent Equipment Co Ltd
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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G9/00Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/0029Processes of manufacture
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G13/00Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
    • H01G13/04Drying; Impregnating
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G9/00Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/145Liquid electrolytic capacitors

Abstract

The invention relates to the technical field of capacitor production, in particular to a capacitor liquid coating device and a capacitor preparation method. The preparation method of the capacitor comprises the steps of coating electrolytic paper by a capacitor coating device, winding the positive and negative aluminum foils and the electrolytic paper to form a biscuit, and immersing the biscuit in electrolyte. The liquid coating device of the capacitor comprises a liquid coating structure and a liquid infusion structure, wherein the liquid coating structure comprises a liquid coating assembly, the liquid coating assembly can be in contact with electrolytic paper, electrolyte is coated on the electrolytic paper, the liquid infusion structure is used for conveying the electrolyte to the liquid coating structure, the liquid infusion structure comprises a liquid storage box, a pump and a conveying pipe, the liquid storage box is used for storing the electrolyte, the pump is used for sucking the electrolyte, and the conveying pipe is used for conveying the electrolyte to the liquid coating structure through the liquid storage box. The capacitor liquid coating device is simple in structure and convenient to use, and the liquid immersion effect is better by adopting the capacitor preparation method, the liquid immersion time is shortened, and the production efficiency is effectively improved. The quality of the produced biscuit is higher through twice immersion.

Description

Capacitor liquid coating device and capacitor preparation method
Technical Field
The invention relates to the technical field of capacitor production, in particular to a capacitor liquid coating device and a capacitor preparation method.
Background
With the development of electronic products, capacitors have been widely used in various modern electronic and electrical devices as a device for storing electric charges.
The part of the capacitor for storing electric energy is called element, the element is formed by winding a plurality of layers of electrolytic paper and positive and negative aluminum foils, and the plurality of layers of electrolytic paper of the element need to be evenly and fully immersed into the electrolyte in order to show various electrical characteristics of the capacitor in the preparation process of the capacitor. However, the existing method of immersing in electrolyte not only has a complex process structure, but also produces lower quality of elements.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a capacitor masking liquid device and capacitor preparation method, aims at solving the current mode of soaking in electrolyte, and not only process structure is complicated, but also the quality of the element of producing is also lower problem.
In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a condenser scribbles liquid device, its characterized in that, condenser scribbles liquid device is including scribbling liquid structure and infusion structure, scribble the liquid structure including scribbling the liquid subassembly, scribble the liquid subassembly can with the contact of electrolytic paper, and scribble electrolyte on the electrolytic paper, the infusion structure be used for to scribble the liquid structure and carry electrolyte, the infusion structure includes liquid reserve tank, pump and conveyer pipe, the liquid reserve tank is used for the storage electrolyte, the pump is used for the suction electrolyte, the conveyer pipe is used for with electrolyte by the liquid reserve tank carry to scribble the liquid structure, scribble the liquid subassembly and include scribble liquid main part and accuse liquid spare, scribble the liquid main part be equipped with be used for holding electrolyte the cavity, with the feed liquor hole and the play liquid hole of cavity intercommunication, the conveyer pipe pass through the feed liquor hole with the cavity intercommunication, scribble the liquid main part and be the column, the liquid outlet hole is formed in the side wall of the liquid coating main body and extends along the axis direction of the liquid coating main body, and the liquid control member is sleeved on the liquid coating main body and provided with a plurality of liquid control holes communicated with the liquid outlet hole; the liquid coating structure further comprises an installation part, and the liquid coating assembly is rotationally connected with the installation part, so that when the liquid coating assembly coats electrolyte on the electrolytic paper, the electrolytic paper can drive the liquid coating assembly to rotate; the masking liquid main part includes a plurality of feed liquor hole and a plurality of go out the liquid hole, it is a plurality of the feed liquor hole encircles the axis of masking liquid main part is evenly arranged, and is a plurality of go out the liquid hole and encircle the axis of masking liquid main part is evenly arranged, so that when the masking liquid subassembly rotates, electrolyte can be by arbitrary the feed liquor hole enters into in the cavity, and can be by arbitrary go out the liquid hole outflow extremely accuse liquid spare, so that the masking liquid subassembly is continuously scribbled electrolyte on the electrolytic paper.
Optionally, the liquid applying assembly further comprises a felt, the felt is sleeved on the liquid control member, and the felt is communicated with the cavity through the liquid control hole and the liquid outlet hole.
Optionally, the felt is detachably connected with the liquid applying main body.
Optionally, the infusion structure further comprises a controller, the controller is electrically connected with the pump, and the pump is a metering pump.
Optionally, the liquid applying structure comprises two liquid applying assemblies, and a liquid applying space for electrolytic paper to pass through is formed between the two liquid applying assemblies.
Optionally, the capacitor liquid coating device further comprises a liquid receiving box and a liquid return pipe, the liquid receiving box is provided with a liquid return hole, one end of the liquid return pipe is located in the liquid return hole, the other end of the liquid return pipe is located in the liquid storage tank, and the liquid coating structure is located in the liquid receiving box.
Optionally, the capacitor liquid coating device further comprises a driving part and a rotating shaft, the rotating shaft is fixedly connected with the liquid coating structure, the driving part is connected with the rotating shaft and can drive the rotating shaft to rotate, and meanwhile, the liquid coating structure is driven to rotate to change the angle.
The invention also provides a capacitor preparation method which is characterized by comprising the steps of coating the electrolytic paper by the capacitor liquid coating device, winding the positive and negative aluminum foils and the electrolytic paper to form a biscuit, and immersing the biscuit in the electrolyte.
Optionally, the middle part of the electrolytic paper is coated with the liquid by the liquid coating assembly.
The embodiment of the invention has the following beneficial effects: when in liquid coating, the liquid coating component is contacted with the electrolytic paper, the pump sucks the electrolyte in the liquid storage tank, the electrolyte is conveyed to the liquid coating structure through the conveying pipe, and then the electrolytic paper is coated with the liquid through the liquid coating component. The capacitor liquid coating device is simple in structure, can complete the liquid coating process of the electrolytic paper through the liquid coating assembly, and is convenient to use.
According to the preparation method of the capacitor, before the element is formed by winding, the electrolytic paper is coated by the capacitor coating device, so that the surface of the electrolytic paper has sufficient electrolyte, then the electrolytic paper is wound to form the element, and the wound element is immersed in the electrolyte again, so that the element is completely soaked. Compared with the method that the electrolyte is directly soaked in the element formed by winding, the method for manufacturing the capacitor has the advantages that the electrolyte is coated on the electrolytic paper before winding, so that the liquid soaking effect is better, the liquid soaking time is shortened, and the production efficiency is effectively improved. In addition, through secondary immersion, the electrolytic paper and the anode and cathode aluminum foils can be fully soaked with the electrolyte, and the quality of the produced element is higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
FIG. 1 is an assembly view of one embodiment of the present invention;
FIG. 2 is a schematic structural view of a liquid applying device for a capacitor;
FIG. 3 is a schematic structural diagram of a liquid applying structure of the liquid applying device for the capacitor in FIG. 2;
fig. 4 is a partial structural view of the coating liquid structure of fig. 3.
Description of reference numerals:
10. a liquid coating structure; 11. a mounting member; 12. a coating assembly; 121. coating a liquid main body; 1211. a cavity; 1212. a liquid inlet hole; 1213. a liquid outlet hole; 122. felt; 123. a liquid control member; 124. a gland; 13. a seal ring; 14. a bearing;
20. a transfusion structure; 21. a liquid storage tank; 22. a pump; 23. a delivery pipe; 24. a controller;
31. a drive member;
41. a liquid receiving box; 42. a liquid return pipe;
51. electrolyzing paper; 52. positive and negative aluminum foils.
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 all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are 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 at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
An embodiment of the present invention provides a capacitor liquid coating device, as shown in fig. 2 and 3, the capacitor liquid coating device includes a liquid coating structure 10 and a liquid delivery structure 20, the liquid coating structure 10 includes a liquid coating assembly 12, the liquid coating assembly 12 can contact with an electrolytic paper 51 and coat an electrolyte on the electrolytic paper 51, the liquid delivery structure 20 is configured to deliver the electrolyte to the liquid coating structure 10, the liquid delivery structure 20 includes a liquid storage tank 21, a pump 22 and a delivery pipe 23, the liquid storage tank 21 is configured to store the electrolyte, the pump 22 is configured to suck the electrolyte, and the delivery pipe 23 is configured to deliver the electrolyte from the liquid storage tank 21 to the liquid coating structure 10.
When applying the liquid, the liquid applying assembly 12 is brought into contact with the electrolytic paper 51, the pump 22 sucks the electrolyte in the reservoir 21, and the electrolyte is conveyed to the liquid applying structure 10 through the conveying pipe 23, and then the electrolytic paper 51 is applied by the liquid applying assembly 12. The capacitor liquid coating device is simple in structure, the liquid coating process of the electrolytic paper 51 can be completed through the liquid coating assembly 12, and the capacitor liquid coating device is convenient to use.
In this embodiment, the liquid coating device for the capacitor further includes a vertical plate, and the liquid coating structure 10 and the liquid feeding structure 20 are respectively mounted on the vertical plate. By arranging the vertical plate, the liquid coating structure 10 and the liquid conveying structure 20 are convenient to install, so that the liquid coating process is convenient to smoothly carry out.
In the present embodiment, as shown in fig. 3, the liquid applying structure 10 includes two liquid applying assemblies 12 and a mounting member 11, the mounting member 11 is provided with two mounting holes, one ends of the two liquid applying assemblies 12 are respectively located in the two mounting holes and fixed on the mounting member 11 by bolts, and a liquid applying space for the electrolytic paper 51 to pass through is formed between the two liquid applying assemblies 12. When the electrolyte is applied, the electrolytic paper 51 passes through the electrolyte applying space, the pump 22 sucks the electrolyte in the liquid storage tank 21, and the electrolyte is conveyed to the electrolyte applying structure 10 through the conveying pipe 23, and then the two electrolyte applying assemblies 12 respectively apply the electrolyte to the two sides of the electrolytic paper 51. By arranging the two liquid coating assemblies 12 to coat the two sides of the electrolytic paper 51, the two sides of the electrolytic paper 51 are fully immersed in the electrolyte, and the effect is better. Of course, in other embodiments, the applicator structure 10 may include only one applicator assembly 12 and apply the liquid to one side of the electrolytic paper 51.
In the present embodiment, two applicator assemblies 12 are rotatably connected to the mounting member 11, respectively. When coating, the electrolytic paper 51 passes through the coating space, the pump 22 sucks the electrolyte in the liquid storage tank 21 and conveys the electrolyte to the coating structure 10 through the conveying pipe 23, and the electrolytic paper 51 moves and drives the two coating assemblies 12 to rotate so as to coat the two sides of the electrolytic paper 51. By rotating the liquid applying assemblies 12 to apply the liquid, friction between the two liquid applying assemblies 12 and the electrolytic paper 51 can be reduced, so that the electrolytic paper 51 can smoothly pass through the liquid applying space, and the two liquid applying assemblies 12 can more uniformly apply the electrolyte on the electrolytic paper 51. In addition, in the present embodiment, both of the applicator assemblies 12 are rotatably coupled to the mounting member 11 by bearings 14. Through setting up bearing 14, reduced the friction between two scribble liquid subassemblies 12 and the installed part 11, be convenient for electrolytic paper 51 drives two scribble liquid subassemblies 12 and rotates for installed part 11, guarantees the going on smoothly of scribbling liquid technology. Of course, in another embodiment, the two coating liquid units 12 may be fixed to the mounting 11, and the electrolytic paper 51 may be moved so that both surfaces of the electrolytic paper 51 are coated with the coating liquid through the surfaces of the two coating liquid units 12 in contact with the electrolytic paper 51.
In this embodiment, as shown in fig. 3 and 4, the coating assembly 12 includes a coating main body 121 and a felt 122, the coating main body 121 is rotatably connected to the mounting member 11, and has a cavity 1211 for accommodating an electrolyte, a liquid inlet 1212 and a liquid outlet 1213 communicated with the cavity 1211, the delivery pipe 23 is communicated with the cavity 1211 through the liquid inlet 1212, the felt 122 is sleeved on the coating main body 121, and the felt 122 is communicated with the cavity 1211 through the liquid outlet 1213. Specifically, in the present embodiment, one end of the delivery pipe 23 is communicated with the liquid storage tank 21, and the other end is communicated with the cavity 1211 through the liquid inlet 1212. When the liquid is applied, the electrolytic paper 51 passes through the liquid applying space, the pump 22 sucks the electrolyte in the liquid storage tank 21, and the electrolyte enters the cavity 1211 from the liquid inlet hole 1212 through the delivery pipe 23, flows out onto the felt 122 from the liquid outlet hole 1213, and permeates out of the felt 122, so as to apply the liquid to the electrolytic paper 51. By arranging the cavity 1211, a certain storage space is provided for the electrolyte, so that the electrolyte can flow out from the liquid outlet holes 1213 and can be coated on the electrolytic paper 51 through the felt 122 when the electrolytic paper 51 passes through the liquid coating space, and the waste of the electrolyte can be reduced.
Further, in the present embodiment, as shown in fig. 3 and 4, the coating liquid main body 121 is in a column shape, and the liquid outlet holes 1213 are provided on a side wall of the coating liquid main body 121 and extend in the axial direction of the coating liquid main body 121. Specifically, in the present embodiment, the size of the liquid outlet holes 1213 is matched with the size of the felt 122, so that the electrolyte flowing out of the liquid outlet holes 1213 is uniformly distributed on the felt 122 and uniformly permeates out of the felt 122, thereby being more uniformly coated on the electrolytic paper 51.
Further, in the embodiment, the liquid inlet 1212 and the liquid outlet 1213 are disposed in plural numbers, and the liquid inlet 1212 and the liquid outlet 1213 are respectively and uniformly distributed around the axis of the liquid coating main body 121. By arranging the plurality of liquid inlet holes 1212 and the plurality of liquid outlet holes 1213, when the electrolytic paper 51 passes through the liquid applying space and drives the two liquid applying assemblies 12 to rotate, the electrolyte can enter the cavity 1211 from any one of the liquid inlet holes 1212, can flow out of any one of the liquid outlet holes 1213 onto the felt 122, and can permeate out of the felt 122, so that the electrolyte can be continuously coated on the electrolytic paper 51, and the liquid applying effect is improved.
It should be noted that in the present embodiment, as shown in fig. 2, the infusion structure 20 further includes a controller 24, the controller 24 is electrically connected to the pump 22, and the pump 22 is a metering pump 22. The controller 24 and the metering pump 22 are arranged to control the input amount of the electrolyte accordingly, and the amount of the electrolyte entering the cavity 1211 can be adjusted according to actual conditions, so that the electrolyte is uniformly coated on the electrolytic paper 51.
Further, in the embodiment, as shown in fig. 3 and 4, the liquid applying assembly 12 further includes a liquid controlling member 123, the liquid controlling member 123 is located between the liquid applying main body 121 and the felt 122 and is provided with a plurality of liquid controlling holes, and the liquid outlet hole 1213 is communicated with the felt 122 through the plurality of liquid controlling holes. Specifically, in the present embodiment, the liquid control member 123 is sleeved on the coating liquid main body 121, and the felt 122 is sleeved on the liquid control member 123. By arranging the liquid control member 123, the electrolyte flowing out from the liquid outlet holes 1213 is dispersed and flows out to the felt 122 through the plurality of liquid control holes, so that the control of the amount and the range of the electrolyte coated on the electrolytic paper 51 is realized, and the electrolyte is prevented from directly flowing out from the liquid outlet holes 1213, so that the electrolyte coated on the electrolytic paper 51 is excessive or the electrolyte is wasted. Therefore, the input quantity of the electrolyte is controlled by the pump 22 and the controller 24, and the output quantity of the electrolyte is controlled by the liquid control piece 123, so that the strict control on the liquid coating process of the electrolytic paper 51 is realized, the electrolyte is ensured to be uniformly coated on the electrolytic paper 51, the effect is better, and the quality of the prime is effectively improved.
In the embodiment, the coating liquid main body 121 and the liquid control member 123 are respectively provided with a step surface, the coating liquid assembly 12 further includes a pressing cover 124, and the pressing cover 124 is fixed on the coating liquid main body 121 by a bolt passing through the liquid control member 123. Therefore, the gland 124 and the step surface of the coating liquid main body 121 compress the liquid control member 123 together, and compress the felt 122 together with the step surface of the liquid control member 123, so that the phenomenon that the liquid control member 123, the felt 122 and the coating liquid main body 121 move relatively in the coating liquid process to cause the non-uniformity of the electrolyte on the electrolytic paper 51 and influence the coating liquid quality is avoided.
In this embodiment, as shown in fig. 4, the liquid applying structure 10 further includes a sealing ring 13, and the sealing ring 13 is sleeved on the liquid applying main body 121 and abuts against the inner wall of the mounting hole. By providing the seal ring 13, the electrolyte can be prevented from leaking out from the gap between the mounting member 11 and the coating liquid main body 121, which is not only inconvenient to clean but also causes waste of the electrolyte.
In this embodiment, as shown in fig. 2, the liquid coating device for a capacitor further includes a liquid receiving box 41 and a liquid returning tube 42, the liquid receiving box 41 is provided with a liquid returning hole, one end of the liquid returning tube 42 is located in the liquid returning hole, the other end is located in the liquid storage tank 21, and the liquid coating structure 10 is located in the liquid receiving box 41. For the unnecessary electrolyte of masking liquid in-process, the accessible connects the liquid hole on the liquid box 41, in the liquid reserve tank 21 is flowed back to through liquid return pipe 42 to carry out reuse, further avoid the waste of electrolyte, practice thrift economic cost.
In this embodiment, the felt 122 is detachably attached to the coating liquid main body 121. Specifically, in the present embodiment, the liquid control member 123 is detachably connected to the liquid applying body 121. Because the liquid control piece 123 is detachably connected with the liquid coating main body 121, the liquid control piece 123 and the felt 122 can be replaced according to actual conditions for the electrolytic paper 51 with different widths, so that the liquid coating requirements of the electrolytic paper 51 with different widths can be met. And when changing, only need to screw down the bolt that connects gland 124 and scribble liquid main part 121, then dismantle gland 124, felt 122 and accuse liquid spare 123 in proper order can, be convenient for change felt 122 and accuse liquid spare 123.
In this embodiment, as shown in fig. 2, the liquid coating device for a capacitor further includes a driving member 31 and a rotating shaft, the rotating shaft is fixedly connected to the liquid coating structure 10, the driving member 31 is connected to the rotating shaft and can drive the rotating shaft to rotate, and at the same time, the liquid coating structure 10 is driven to rotate to change the angle. Specifically, in this embodiment, the liquid coating device for the capacitor further includes a fixing block, the fixing block is fixed on the vertical plate, one end of the rotating shaft penetrates through the vertical plate and the fixing block is fixedly connected to the mounting member 11, and the driving member 31 is connected to the other end of the rotating shaft, wherein the driving member 31 is a cylinder. When not in use, the applicator assemblies 12 are at the same height. During liquid coating, the electrolytic paper 51 passes through the liquid coating space between the two liquid coating assemblies 12, the driving member 31 drives the rotating shaft to rotate, and simultaneously drives the mounting member 11 and the two liquid coating assemblies 12 to rotate so as to change a certain angle, and the electrolytic paper 51 is attached to two sides of the electrolytic paper 51, so that liquid coating operation is performed on two sides of the electrolytic paper 51. After the coating liquid is finished, the driving member 31 drives the rotating shaft to rotate, and simultaneously drives the mounting member 11 and the two coating liquid assemblies 12 to rotate so as to reset. Because the rotating shaft can drive the mounting part 11 and the two liquid coating assemblies 12 to rotate, the electrolytic paper 51 can penetrate through the liquid coating space for mounting at the beginning, and the phenomenon that when the electrolytic paper 51 is mounted, the electrolytic paper 51 is stuck with the residual electrolyte on the felt 122 to cause the nonuniformity of the electrolyte on the electrolytic paper 51 can be avoided. In addition, the angle of the mounting member 11 and the two coating units 12 is changed during coating, so that the mounting member can be better attached to both surfaces of the electrolytic paper 51, and the coating effect can be ensured.
The invention also provides a capacitor preparation method, which comprises the steps of coating the electrolytic paper 51 by a capacitor coating device, winding the positive and negative aluminum foils 52 and the electrolytic paper 51 to form a biscuit, and immersing the biscuit in the electrolyte.
Before the element is formed by winding, the electrolytic paper 51 is coated with liquid by a capacitor liquid coating device, so that the surface of the electrolytic paper 51 has enough electrolyte firstly, then the element is formed by winding, and the wound element is immersed into the electrolyte again, so that the element is completely soaked. Compared with the method of directly soaking the electrolyte in the element formed by winding, the method for preparing the capacitor has the advantages that the electrolyte is coated on the electrolytic paper 51 before winding, so that the liquid soaking effect is better, the liquid soaking time is shortened, and the production efficiency is effectively improved. In addition, the electrolyte paper 51 and the positive and negative aluminum foils 52 can be fully soaked by re-immersion, so that the quality of the produced element is higher.
In the present embodiment, the center portion of the electrolytic paper 51 is applied with the liquid by the liquid application unit 12. Before the winding to form the element, the middle part of the electrolytic paper 51 is coated with liquid at about two thirds position by a capacitor liquid coating device, so that the middle part of the electrolytic paper 51 has enough electrolyte at about two thirds position, then the winding is carried out to form the element, and the wound element is immersed into the electrolyte again. Because the internal structure of the element is compact and cannot be soaked quickly, the middle part of the electrolytic paper 51 which is not easy to soak is firstly coated with sufficient electrolyte by the liquid coating component 12, and then the element is soaked fully by soaking again, so that the problem of incomplete soaking is effectively solved, and the process time is shortened.
In the present embodiment, as shown in fig. 1, the electrolytic paper 51 is applied with the liquid at about two-thirds position in the middle by the liquid applying unit 12 while being wound. Thus, the electrolytic paper 51 can be coated in the original winding process, so that the process time is further shortened, the contact time of the electrolyte and the air is reduced, and the quality of the element is improved.
In this embodiment, the method for manufacturing the capacitor further includes assembling, filling liquid on the wire, sealing, sleeving, and aging. Specifically, in this embodiment, the wound element is subjected to assembling, filling, sealing, sleeving, aging, and the like to complete the manufacturing of the capacitor. And after the element is completely soaked in the electrolyte, the next procedure is immediately carried out, so that the phenomenon that the electrolyte stays in the air for a long time to influence the quality of the element is avoided.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.

Claims (9)

1. A capacitor liquid coating device is characterized by comprising:
the liquid coating structure comprises a liquid coating assembly, wherein the liquid coating assembly can be in contact with electrolytic paper and can coat electrolyte on the electrolytic paper; and
the electrolyte spraying device comprises a liquid conveying structure, a liquid spraying structure and a liquid spraying structure, wherein the liquid conveying structure is used for conveying the electrolyte to the liquid spraying structure, the liquid conveying structure comprises a liquid storage tank, a pump and a conveying pipe, the liquid storage tank is used for storing the electrolyte, the pump is used for sucking the electrolyte, and the conveying pipe is used for conveying the electrolyte from the liquid storage tank to the liquid spraying structure;
the coating assembly comprises a coating main body and a liquid control piece, the coating main body is provided with a cavity for containing the electrolyte, a liquid inlet hole and a liquid outlet hole, the liquid inlet hole is communicated with the cavity, the conveying pipe is communicated with the cavity through the liquid inlet hole, the coating main body is columnar, the liquid outlet hole is formed in the side wall of the coating main body and extends along the axial direction of the coating main body, and the liquid control piece is sleeved on the coating main body and is provided with a plurality of liquid control holes communicated with the liquid outlet hole;
the liquid coating structure further comprises an installation part, and the liquid coating assembly is rotationally connected with the installation part, so that when the liquid coating assembly coats electrolyte on the electrolytic paper, the electrolytic paper can drive the liquid coating assembly to rotate; the masking liquid main part includes a plurality of feed liquor hole and a plurality of go out the liquid hole, it is a plurality of the feed liquor hole encircles the axis of masking liquid main part is evenly arranged, and is a plurality of go out the liquid hole and encircle the axis of masking liquid main part is evenly arranged, so that when the masking liquid subassembly rotates, electrolyte can be by arbitrary the feed liquor hole enters into in the cavity, and can be by arbitrary go out the liquid hole outflow extremely accuse liquid spare, so that the masking liquid subassembly is continuously scribbled electrolyte on the electrolytic paper.
2. The capacitor liquid coating device according to claim 1, wherein the liquid coating assembly further comprises a felt, the felt is sleeved on the liquid control member, and the felt is communicated with the cavity through the liquid control hole and the liquid outlet hole.
3. The capacitor applicator according to claim 2, wherein the felt is detachably attached to the applicator body.
4. The capacitor coating apparatus according to any one of claims 1 to 3, wherein the liquid delivery structure further comprises a controller, the controller being electrically connected to the pump, the pump being a metering pump.
5. The capacitor painting apparatus according to any one of claims 1 to 3, wherein the painting structure comprises two painting assemblies, and a painting space through which electrolytic paper passes is formed between the two painting assemblies.
6. The capacitor painting device according to claim 1, further comprising a liquid receiving box and a liquid return pipe, wherein the liquid receiving box is provided with a liquid return hole, one end of the liquid return pipe is located in the liquid return hole, the other end of the liquid return pipe is located in the liquid storage tank, and the painting structure is located in the liquid receiving box.
7. The device as recited in claim 1, further comprising a driving member and a rotating shaft, wherein the rotating shaft is fixedly connected to the liquid applying structure, and the driving member is connected to the rotating shaft and can drive the rotating shaft to rotate and drive the liquid applying structure to rotate for changing angles.
8. A method of making a capacitor, comprising:
applying the electrolytic paper to the capacitor by the capacitor applying apparatus according to any one of claims 1 to 7;
winding the positive and negative aluminum foils and the electrolytic paper to form a biscuit; and
immersing the element in the electrolyte.
9. The method of manufacturing a capacitor according to claim 8, wherein the middle portion of the electrolytic paper is applied with the liquid application member.
CN202010422077.3A 2020-05-19 2020-05-19 Capacitor liquid coating device and capacitor preparation method Active CN111341563B (en)

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CN207883522U (en) * 2018-02-06 2018-09-18 深圳市诚捷智能装备股份有限公司 A kind of capacitance production equipment
CN208407477U (en) * 2018-07-12 2019-01-22 山东中佳电子科技有限公司 A kind of copper bar surface coating device
CN208494743U (en) * 2018-05-15 2019-02-15 马鞍山钢铁股份有限公司 A kind of paint roller cleaning device

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CN1269736A (en) * 1997-09-12 2000-10-11 亨凯尔公司 Coating apparatus
CN2881916Y (en) * 2005-12-30 2007-03-21 东莞世昕电子有限公司 Electrolyte device on capacity assembling machine
CN201586620U (en) * 2009-11-30 2010-09-22 范利社 Automatic feeding brushing roll
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CN208494743U (en) * 2018-05-15 2019-02-15 马鞍山钢铁股份有限公司 A kind of paint roller cleaning device
CN208407477U (en) * 2018-07-12 2019-01-22 山东中佳电子科技有限公司 A kind of copper bar surface coating device

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