Method for manufacturing solid-liquid hybrid capacitor with quantitative electrolyte injection

Abstract

The invention relates to the technical field of production and processing of solid-liquid hybrid capacitors, and in particular discloses a method for manufacturing a solid-liquid hybrid capacitor with quantitative electrolyte injection. The method comprises: step S1, placing an aluminum capacitor casing to be injected with an electrolyte on a lifting platform; step S2, injecting a predetermined quantity of electrolyte into an injection tube via a liquid intake tube; and step S4, driving a drive rod and a piston to move downward within the injection tube by a telescopic member, so as to inject the electrolyte in the injection tube into the aluminum capacitor casing. The telescopic member is extended to move the drive rod downward, so that the piston moves downward in the injection tube to inject the electrolyte into the aluminum capacitor casing. A shaking drive member on the drive rod comes into contact with a cover plate on a connecting member to shake the injection tube vertically, so that the electrolyte adhering to the inner wall of the injection tube is shaken off and flows into the aluminum capacitor casing, thereby enabling the predetermined quantity of electrolyte to enter the aluminum capacitor casing completely to the greatest extent, and effectively avoiding the problems of insufficient and inconsistent electrolyte volume in each injection.

Description

Solid-liquid mixed capacitor manufacturing method for quantitative injection of electrolyte TECHNICAL FIELD

[0001] The present application belongs to the technical field of solid-liquid mixed capacitor production and processing, and particularly relates to a solid-liquid mixed capacitor manufacturing method for quantitative injection of electrolyte. BACKGROUND

[0002] The solid-liquid mixed capacitor is a solid-liquid mixed aluminum electrolytic capacitor, referred to as a mixed capacitor, which is a new type of capacitor. It uses both solid and liquid electrolytes, combining the characteristics of solid and liquid capacitors, and has advantages such as high capacity, low leakage current, and self-repairing capability. The structure of this capacitor is basically similar to that of a solid-state capacitor, but in addition to the conductive polymer of the solid-state capacitor, it also adds electrolyte. TECHNICAL PROBLEM

[0003] During the production of the solid-liquid mixed capacitor, a certain amount of electrolyte needs to be injected into the capacitor aluminum shell. Currently, the electrolyte is injected manually, and the amount of electrolyte injected is controlled manually. This results in inaccurate injection of electrolyte into the capacitor aluminum shell. To solve the above technical problems, the applicant has searched for some existing technologies to achieve quantitative injection of electrolyte. For example, patent CN114628868B mainly uses a quantitative tank to extract and add electrolyte quantitatively, improving the accuracy of electrolyte addition. Through the applicant's analysis, the disadvantages of this technical solution are that during the electrolyte addition process, some of the electrolyte in the quantitative tank will adhere to the inner wall of the quantitative tank, resulting in less electrolyte being added each time, and the amount of electrolyte added each time is not uniform, resulting in a large error in the amount of electrolyte added. TECHNICAL SOLUTION

[0004] The present application aims to solve the technical problems of the prior art, such as the fact that during the electrolyte addition process, some of the electrolyte in the quantitative tank will adhere to the inner wall of the quantitative tank, resulting in less electrolyte being added each time, and the amount of electrolyte added each time is not uniform.

[0005] The purpose of the present application can be achieved by the following technical solution:

[0006] A solid-liquid mixed capacitor manufacturing method for quantitative injection of electrolyte, comprising the following steps:

[0007] Step S1: Place the capacitor aluminum shell to be injected with electrolyte on the lifting platform;

[0008] Step S2: Inject a certain amount of electrolyte into the injection pipe through the liquid inlet pipe, and close the electric control valve on the liquid inlet pipe;

[0009] Step S3: The capacitor aluminum shell is moved up by the lifting platform, the sealing cover is placed on the capacitor aluminum shell, and the capacitor aluminum shell is sealed;

[0010] Step S4: The electrolyte in the injection tube is injected into the capacitor aluminum shell by moving the driving rod and the piston downward in the injection tube through the telescopic member;

[0011] Step S5: The injection tube is shaken up and down during the downward movement of the driving rod, so that the electrolyte attached to the inner wall of the injection tube falls into the capacitor aluminum shell through the cooperation of the shaking driving member and the connecting member;

[0012] Step S6: After the electrolyte injection is completed, the capacitor aluminum shell is moved downward by the lifting platform, and the driving rod and the piston are moved upward by the telescopic member.

[0013] As a preferred embodiment of the above technical solution, the solid-liquid mixed capacitor manufacturing method for quantitatively injecting electrolyte is applied to a solid-liquid mixed capacitor manufacturing device for quantitatively injecting electrolyte, which comprises:

[0014] a mounting frame;

[0015] a telescopic member, which is installed on the mounting frame, and the output end of the telescopic member is rotationally connected with a driving rod, and the other end of the driving rod is installed with a piston;

[0016] a shaking frame, which is fixedly connected with the mounting frame;

[0017] an injection tube, which is installed in the shaking frame, and the piston is inserted into the injection tube and slides against the inner wall of the injection tube.

[0018] As a preferred embodiment of the above technical solution, the shaking frame comprises a sleeve ring, the sleeve ring is fixedly connected with the mounting frame through a plurality of fixing rods, a supporting ring is movably installed in the sleeve ring, and a plurality of elastic members two are connected between the supporting ring and the sleeve ring.

[0019] The injection tube is connected with a connecting member, the connecting member comprises a circular ring block, the circular ring block is fixedly connected with the top of the injection tube, a cover plate is fixedly arranged on the top of the circular ring block, and the cover plate covers the supporting ring.

[0020] The piston penetrates into the injection tube through the connecting member, and a plurality of shaking driving members are arranged on the driving rod.

[0021] As a preferred embodiment of the above technical solution, the shaking driving member comprises a movable rod, the movable rod is hingedly installed on the surface of the driving rod, elastic members one are connected between the movable rod and the driving rod on both upper and lower surfaces of the movable rod, and slopes are symmetrically arranged on the middle position of the cover plate in up and down directions, so that the connecting member moves downward when the driving rod moves downward and the movable rod contacts the slopes on the cover plate.

[0022] As the preferred technical scheme of the above, the injection pipe is externally provided with a rotating mechanism, which comprises:

[0023] a driving ring, which is fixedly connected with the driving rod through a connecting rod, and is sleeved on the periphery of the injection pipe;

[0024] two guide grooves, which are crossly formed on the inner side of the driving ring, and the periphery of the injection pipe is provided with a guide rail, which is in a spiral curved shape and is clamped in the guide grooves.

[0025] As the preferred technical scheme of the above, the guide rail is divided into two sections, and the two sections are horizontally symmetrical along the center position of the injection pipe, and the through holes are formed on the circular ring block and the cover plate, and the connecting rod passes through the through holes.

[0026] As the preferred technical scheme of the above, the bottom of the piston is provided with a scraper, which slides relative to the inner wall of the injection pipe, and the bottom of the scraper is provided with an inwardly inclined inclined opening.

[0027] As the preferred technical scheme of the above, the periphery of the injection pipe is provided with a sealing cover.

[0028] As the preferred technical scheme of the above, the outer surface of the injection pipe is connected with a liquid inlet pipe.

[0029] As the preferred technical scheme of the above, the mounting frame is provided with a controller, the inner wall of the injection pipe is provided with a liquid level sensor, the liquid inlet pipe is provided with an electric control valve, the controller is connected with the telescopic member, and the liquid level sensor and the electric control valve are connected with the controller. Advantages

[0030] Compared with the prior art, the present application has the following advantages:

[0031] 1、In the present application, the driving rod is lowered by the extension of the telescopic member, so that the piston moves downward in the injection pipe, so that the electrolyte in the injection pipe is injected into the capacitor aluminum shell. When the driving rod moves downward, the wobble driving member on the driving rod contacts the cover plate on the connecting member. The movable rod on the wobble driving member rotates upward. The pressure of the movable rod causes the connecting member to move downward, so that the elastic member two is compressed. The movable rod slowly rotates, and the wedge shape of the movable rod active end cooperates with the slope. The movable rod passes above the cover plate to below the cover plate. When the movable rod reaches below the cover plate, the cover plate is released from the restriction. The elastic member two rebounds to drive the connecting member and the injection pipe to move upward. In this way, the injection pipe shakes up and down, so that the electrolyte adhering to the inner wall of the injection pipe shakes down and enters the capacitor aluminum shell. The quantitative electrolyte is as completely as possible into the capacitor aluminum shell, effectively avoiding the amount of electrolyte injected each time being less and not uniform;

[0032] 2. In this invention, the extension of the telescopic component causes the drive rod to move downward. The drive rod drives the drive ring to move downward through the connecting rod. As the piston slides relative to the inner wall of the injection tube, the guide rail will move along the guide groove, causing the injection tube to rotate. Since the two guide rails are symmetrical and cooperate with the two intersecting guide grooves, the injection tube rotates when the drive ring is at the first guide rail and reverses when the drive ring is at the second guide rail. During the downward movement of the drive rod, the injection tube rotates in both directions. During the rotation of the injection tube, the electrolyte adhering to the inner wall of the injection tube will be in a flowing state. Combined with the up-and-down shaking of the injection tube, the electrolyte adhering to the inner wall of the injection tube is more easily shaken off, which enhances the effect of cleaning the electrolyte from the inner wall of the injection tube, thereby further avoiding the amount of electrolyte injected each time being too small and inconsistent.

[0033] 3. In this invention, the extension of the telescopic component causes the drive rod to move downward. During the downward movement, the scraper scrapes off the electrolyte adhering to the inner wall of the injection tube. Combined with the up-and-down shaking and rotation of the injection tube, the effect of cleaning the electrolyte from the inner wall of the injection tube is further enhanced, thereby further avoiding the problem of insufficient and inconsistent amounts of electrolyte injected each time. Attached Figure Description

[0034] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 is a schematic diagram of the internal structure of the injection tube;

[0036] Figure 3 is a schematic diagram of the internal structure of the swaying mechanism;

[0037] Figure 4 is a schematic diagram of the swaying mechanism;

[0038] Figure 5 is a schematic diagram of the drive rod and piston structure;

[0039] Figure 6 is a schematic diagram of the swaying frame structure;

[0040] Figure 7 is a schematic diagram of the rotating mechanism;

[0041] Figure 8 is a schematic diagram of the rotary drive component;

[0042] Figure 9 is a schematic diagram of the external connection structure of the injection tube.

[0043] In the picture:

[0044] 1, mounting frame; 2, telescopic member; 21, driving rod; 211, shaking driving member; 2111, movable rod; 2112, elastic member I; 22, piston; 221, scraper; 2211, bevel; 3, controller; 4, injection tube; 41, connecting member; 411, circular ring block; 412, cover plate; 4121, slope; 413, through hole; 42, guide rail; 43, liquid inlet pipe; 431, electrically controlled valve; 44, sealing cover; 5, shaking frame; 51, sleeve ring; 52, elastic member II; 53, supporting ring; 54, fixing rod; 6, lifting platform; 7, rotating mechanism; 71, driving ring; 711, guide groove; 72, connecting rod; 8, liquid level sensor. Embodiments of the present application

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application. Embodiments

[0046] As shown in FIGS. 1-6, a method for manufacturing a solid-liquid mixed capacitor with quantitatively injected electrolyte includes the following steps:

[0047] Step S1: Place the capacitor aluminum shell to be injected with electrolyte on the lifting platform 6;

[0048] Step S2: Inject a certain amount of electrolyte into the injection tube 4 through the liquid inlet pipe 43, and close the electrically controlled valve 431 on the liquid inlet pipe 43;

[0049] Step S3: Make the capacitor aluminum shell move up by lifting the lifting platform 6, and make the sealing cover 44 cover the capacitor aluminum shell to seal the capacitor aluminum shell;

[0050] Step S4: Make the driving rod 21 and the piston 22 move downward in the injection tube 4 by the telescopic member 2, so that the electrolyte in the injection tube 4 is injected into the capacitor aluminum shell;

[0051] Step S5: During the downward movement of the driving rod 21, make the injection tube 4 shake up and down by the cooperation of the shaking driving member 211 and the connecting member 41, so that the electrolyte adhering to the inner wall of the injection tube 4 shakes down into the capacitor aluminum shell;

[0052] Step S6: After the electrolyte injection is completed, make the capacitor aluminum shell move down by the lifting platform 6, and make the driving rod 21 and the piston 22 move upward by the telescopic member 2.

[0053] In one case of the embodiment, the lifting platform 6 can be a component capable of actively changing length, used to control the height of the capacitor aluminum shell.

[0054] As shown in FIGS. 1-6, the application provides a solid-liquid mixed capacitor manufacturing method for quantitatively injecting electrolyte. The solid-liquid mixed capacitor manufacturing method for quantitatively injecting electrolyte is applied to a solid-liquid mixed capacitor manufacturing device for quantitatively injecting electrolyte. The device comprises:

[0055] a mounting frame 1;

[0056] a telescopic component 2 mounted on the mounting frame 1, the telescopic component 2 having a driving rod 21 rotatably connected to the output end of the telescopic component 2, and a piston 22 mounted on the other end of the driving rod 21;

[0057] a shaking frame 5 fixedly connected to the mounting frame 1;

[0058] a syringe 4 mounted in the shaking frame 5, and the piston 22 being inserted into the syringe 4 and sliding against the inner wall of the syringe 4.

[0059] In one case of the embodiment, the telescopic component 2 can be an air cylinder, and of course can also be a component capable of driving the driving rod 21 to move up and down. When the piston 22 slides against the inner wall of the syringe 4, the sealing property is also taken into account. When the piston 22 moves downward, the electrolyte in the syringe 4 is discharged from the syringe 4, and at the same time, when the electrolyte is added into the syringe 4, the electrolyte will not leak out from the bottom of the syringe 4.

[0060] In actual application of the embodiment, the telescopic component 2 is elongated to make the driving rod 21 move downward, and the piston 22 moves downward in the syringe 4, so that the electrolyte in the syringe 4 is injected into the capacitor aluminum shell. When the driving rod 21 moves downward, the syringe 4 is shaken up and down in cooperation with the shaking frame 5, so that the electrolyte adhering to the inner wall of the syringe 4 is shaken down and enters the capacitor aluminum shell. The quantified electrolyte is made to enter the capacitor aluminum shell as completely as possible, and the amount of electrolyte injected each time is the same, so that the purpose of quantitatively injecting electrolyte is achieved.

[0061] Further, the shaking frame 5 comprises a sleeve ring 51 fixedly connected to the mounting frame 1 through a plurality of fixing rods 54, a supporting ring 53 movably mounted in the sleeve ring 51, and a plurality of elastic components two 52 connected between the supporting ring 53 and the sleeve ring 51.

[0062] The syringe 4 is connected with a connecting component 41, which comprises a circular ring block 411 fixedly connected with the top of the syringe 4, and a cover plate 412 fixedly connected with the top of the circular ring block 411 and covering the supporting ring 53.

[0063] The piston 22 extends into the injection tube 4 through the connecting piece 41, and the driving rod 21 is provided with a plurality of shaking driving members 211.

[0064] In one case of the embodiment, the elastic member two 52 can be a spring, and can also be other elastic components.

[0065] In actual application of the embodiment, the driving rod 21 is lowered to make the shaking driving member 211 contact with the cover plate 412, so that the connecting piece 41 is lowered, the supporting ring 53 presses and compresses the elastic member two 52, when the shaking driving member 211 passes through the cover plate 412, the cover plate 412 is released from the limitation, the supporting ring 53 drives the connecting piece 41 and the injection tube 4 to move upward by the resilience of the elastic member two 52, so that the injection tube 4 shakes up and down, the electrolyte adhered to the inner wall of the injection tube 4 is shaken down and enters into the capacitor aluminum shell, and the quantitative electrolyte can enter into the capacitor aluminum shell as completely as possible.

[0066] Further, the shaking driving member 211 includes a movable rod 2111, which is hingedly installed on the surface of the driving rod 21, and the movable rod 2111 is connected with the elastic member one 2112 between the upper and lower surfaces and the driving rod 21, and the middle position of the cover plate 412 is symmetrically provided with a slope 4121, when the driving rod 21 moves downward, the movable rod 2111 contacts with the slope 4121 on the cover plate 412, so that the connecting piece 41 moves downward.

[0067] In one case of the embodiment, the elastic member one 2112 can be a spring, and can also be other elastic components; wherein the movable end of the movable rod 2111 is wedge-shaped, which cooperates with the slope 4121 on the cover plate 412, so as to facilitate the bending of the movable rod 2111 and to be below the cover plate 412 in the process of moving downward.

[0068] In actual application of the embodiment, in the process of moving downward of the driving rod 21, the movable rod 2111 contacts with the cover plate 412, so that one of the two elastic member ones 2112 is elongated and the other is compressed, and the connecting piece 41 moves downward due to the pressure of the movable rod 2111, so that the elastic member two 52 is compressed, the movable rod 2111 slowly rotates, the wedge-shaped movable end of the movable rod 2111 cooperates with the slope 4121, the movable rod 2111 passes above the cover plate 412 to below the cover plate 412, so that the driving rod 21 can continue to move downward, when the movable rod 2111 is below the cover plate 412, the cover plate 412 is released from the limitation, so that the connecting piece 41 drives the injection tube 4 to move upward and shake, so that the electrolyte adhered to the inner wall of the injection tube 4 is shaken down and enters into the capacitor aluminum shell, and the quantitative electrolyte can enter into the capacitor aluminum shell as completely as possible.

[0069] As shown in FIG. 2, FIG. 3, FIG. 4, FIG. 7, FIG. 8 and FIG. 9, a solid-liquid mixed capacitor manufacturing method for quantitative injection of electrolyte is provided, a rotating mechanism 7 is installed outside the injection tube 4, the rotating mechanism 7 comprises:

[0070] a driving ring 71, the driving ring 71 is fixedly connected with the driving rod 21 through a connecting rod 72, and the driving ring 71 is sleeved outside the injection tube 4;

[0071] a guide groove 711, two guide grooves 711 are crossly arranged inside the driving ring 71, and a guide rail 42 is arranged outside the injection tube 4, the guide rail 42 is in a spiral bending shape, and the guide rail 42 is clamped in the guide groove 711.

[0072] In one case of the embodiment, the guide rail 42 slides relative to the guide groove 711, and the driving ring 71 is insufficient to drive the injection tube 4 to move downward when moving downward.

[0073] In actual application of the embodiment, the driving rod 21 drives the driving ring 71 to move downward through the connecting rod 72 during the downward movement of the driving rod 21, the guide rail 42 is displaced along the guide groove 711 due to the relative sliding between the piston 22 and the inner wall of the injection tube 4, so that the injection tube 4 rotates, the electrolyte adhered to the inner wall of the injection tube 4 is in a flowing state during the rotation of the injection tube 4, and the electrolyte is shaken down and into the capacitor aluminum shell by the up-and-down shaking of the injection tube 4, thereby enhancing the effect of cleaning the electrolyte from the inner wall of the injection tube 4.

[0074] Further, the guide rail 42 is divided into two sections, the two sections of the guide rail 42 are horizontally symmetrical along the center position horizontal line of the injection tube 4, a through hole 413 is arranged on the circular ring block 411 and the cover plate 412, and the connecting rod 72 passes through the through hole 413.

[0075] In one case of the embodiment, the two sections of the guide rail 42 correspond to the two cross guide grooves 711, and the projection angle of each section of the guide rail 42 in the longitudinal direction is less than 180°; wherein the angle formed by the track of the through hole 413 is less than 180°, and the connecting rod 72 has two rods which pass through the through holes 413 at two positions respectively; when one section of the guide rail 42 is completed, the connecting rod 72 is displaced from one end of the through hole 413 to the other end of the through hole 413; when the driving ring 71 moves to the two guide rails 42 respectively, the rotation directions of the injection tube 4 are opposite.

[0076] In actual application of the embodiment, the driving rod 21 drives the driving ring 71 to move downward, the injection tube 4 rotates through the cooperation of the guide rail 42 and the guide groove 711, when the driving ring 71 moves downward to the lower section of the guide rail 42, the guide rail 42 at this time enters the other guide groove 711, so that the injection tube 4 at this time rotates reversely, the injection tube 4 is positively and reversely rotated during the downward movement of the driving rod 21, and the electrolyte is more easily shaken down by the up-and-down shaking of the injection tube 4.

[0077] As shown in FIG. 3 and FIG. 5, a solid-liquid mixed capacitor manufacturing method for quantitative injection of electrolyte is provided, the bottom of the piston 22 is provided with a scraper 221, the scraper 221 slides against the inner wall of the injection pipe 4, and the bottom of the scraper 221 is provided with an inwardly inclined inclined opening 2211.

[0078] In actual application, in the process of the downward movement of the driving rod 21, the scraper 221 scrapes the electrolyte attached to the inner wall of the injection pipe 4, and the up-and-down shaking and rotation of the injection pipe 4 further enhance the effect of cleaning the electrolyte from the inner wall of the injection pipe 4.

[0079] As shown in FIG. 9, a solid-liquid mixed capacitor manufacturing method for quantitative injection of electrolyte is provided, and a sealing cover 44 is mounted on the periphery of the injection pipe 4.

[0080] In one case of the embodiment, when the top of the inner cavity of the sealing cover 44 contacts the top of the capacitor aluminum shell, the capacitor aluminum shell is in a sealed state.

[0081] In actual application, the capacitor aluminum shell is moved upward by the lifting platform 6, so that the top of the inner cavity of the sealing cover 44 contacts the top of the capacitor aluminum shell, so that the capacitor aluminum shell is in a sealed state. In this way, when the electrolyte is injected into the capacitor aluminum shell, the electrolyte cannot splash out of the capacitor shell, ensuring the accuracy of the amount of electrolyte injected into the capacitor aluminum shell. At the same time, the electrolyte also separates the external air, avoiding the absorption of moisture in the air by the electrolyte, thereby ensuring the effectiveness of the electrolyte.

[0082] As shown in FIG. 9, a solid-liquid mixed capacitor manufacturing method for quantitative injection of electrolyte is provided, and a sealing cover 44 is mounted on the periphery of the injection pipe 4.

[0083] In actual application, a certain amount of electrolyte is added to the injection pipe 4 through the liquid inlet pipe 43.

[0084] As shown in FIG. 1, FIG. 2 and FIG. 9, a solid-liquid mixed capacitor manufacturing method for quantitative injection of electrolyte is provided, a controller 3 is mounted on the mounting frame 1, a liquid level sensor 8 is mounted on the inner wall of the injection pipe 4, and an electrically controlled valve 431 is mounted on the liquid inlet pipe 43. The controller 3 is connected with the telescopic member 2, and the liquid level sensor 8 and the electrically controlled valve 431 are both connected with the controller 3.

[0085] In one case of the embodiment, the controller 3 is connected with an external control unit, which can be a mobile phone APP or a computer control terminal, and the controller 3 is used to control the start and stop of the telescopic member 2 and the electrically controlled valve 431; the liquid level sensor 8 is used to detect the amount of electrolyte in the injection pipe 4.

[0086] In actual application, the controller 3 is used to open the electric control valve 431, and a certain amount of electrolyte is added into the injection pipe 4 through the liquid inlet pipe 43. When the liquid level reaches the position of the liquid level sensor 8, the liquid level sensor 8 transmits a signal to the controller 3, and the controller 3 is used to close the electric control valve 431, so that the amount of electrolyte in the injection pipe 4 is fixed and consistent each time. The controller 3 is used to control the start and stop of the telescopic member 2, so that the piston 22 moves downward, and the electrolyte is injected into the capacitor aluminum shell.

[0087] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A method for manufacturing a solid-liquid mixed capacitor to which an electrolyte is quantitatively injected, characterized by comprising: It comprises the following steps: Step S1: Put the capacitor aluminum shell to be injected with electrolyte on the lifting platform (6); Step S2: Inject a certain amount of electrolyte into the injection pipe (4) through the liquid inlet pipe (43), and close the electric control valve (431) on the liquid inlet pipe (43); Step S3: Make the capacitor aluminum shell move up by lifting the lifting platform (6), so that the sealing cover (44) covers the capacitor aluminum shell, and the capacitor aluminum shell is sealed; Step S4: Make the driving rod (21) and the piston (22) move downward in the injection pipe (4) through the telescopic part (2), so that the electrolyte in the injection pipe (4) is injected into the capacitor aluminum shell; Step S5: During the downward movement of the driving rod (21), make the injection pipe (4) shake up and down through the cooperation of the shaking driving part (211) and the connecting part (41), so that the electrolyte adhering to the inner wall of the injection pipe (4) shakes down into the capacitor aluminum shell; Step S6: After the electrolyte injection is completed, make the capacitor aluminum shell move down through the lifting platform (6), and make the driving rod (21) and the piston (22) move up through the telescopic part (2); The solid-liquid mixed capacitor electrolyte injection method is applied to a solid-liquid mixed capacitor electrolyte injection device, which comprises: a mounting frame (1); a telescopic part (2) installed on the mounting frame (1), the output end of the telescopic part (2) being rotatably connected with a driving rod (21), the other end of the driving rod (21) being installed with a piston (22); a shaking frame (5) fixedly connected with the mounting frame (1); an injection pipe (4) installed in the shaking frame (5), the piston (22) being inserted into the injection pipe (4) and sliding against the inner wall of the injection pipe (4); the shaking frame (5) comprising a sleeve ring (51) fixedly connected with the mounting frame (1) through a plurality of fixed rods (54), a supporting ring (53) movably installed in the sleeve ring (51), and a plurality of elastic members two (52) connected between the supporting ring (53) and the sleeve ring (51); the injection pipe (4) being connected with a connecting part (41), the connecting part (41) comprising a circular ring block (411) fixedly connected with the top of the injection pipe (4), and a cover plate (412) fixedly arranged on the top of the circular ring block (411) and covering the supporting ring (53); the piston (22) extending into the injection pipe (4) through the connecting part (41), and a plurality of shaking driving parts (211) being arranged on the driving rod (21); The shaking driving part (211) comprises a movable rod (2111) which is hingedly installed on the surface of the driving rod (21), and elastic members (2112) are connected between the movable rod (2111) and the driving rod (21) on both upper and lower surfaces of the movable rod (2111); the middle position of the cover plate (412) is symmetrically provided with slopes (4121) on both upper and lower surfaces, and when the driving rod (21) moves downward, the movable rod (2111) is in contact with the slopes (4121) on the cover plate (412), so that the connecting piece (41) moves downward; The injection tube (4) is externally provided with a rotating mechanism (7), which comprises: a driving ring (71) which is fixedly connected with the driving rod (21) through a connecting rod (72) and is sleeved on the periphery of the injection tube (4); two guide grooves (711) which are formed on the inner side of the driving ring (71) and cross each other, and the periphery of the injection tube (4) is provided with a guide rail (42) which is in a spiral curved form and is clamped in the guide grooves (711); the guide rail (42) is divided into two sections which are horizontally symmetrical along the center position of the injection tube (4), and the circular ring block (411) and the cover plate (412) are both provided with through holes (413) through which the connecting rod (72) passes.

2. The method of claim 1, wherein the electrolyte is injected in a predetermined amount. The bottom of the piston (22) is provided with a scraper (221) which slides relative to the inner wall of the injection tube (4), and the bottom of the scraper (221) is provided with an inwardly inclined inclined opening (2211).

3. The method of claim 1, wherein the electrolyte is injected in a predetermined amount. The periphery of the injection tube (4) is provided with a sealing cover (44).

4. The method of claim 1, wherein the electrolyte is injected in a predetermined amount. The outer surface of the injection tube (4) is connected with a liquid inlet pipe (43).

5. The method of claim 4, wherein the electrolyte is injected in a predetermined amount. The mounting frame (1) is provided with a controller (3), the inner wall of the injection tube (4) is provided with a liquid level sensor (8), the liquid inlet pipe (43) is provided with an electric control valve (431), the controller (3) is connected with the telescopic member (2), and the liquid level sensor (8) and the electric control valve (431) are both connected with the controller (3).

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