A negative pressure packaging equipment for LP terminal type aluminum electrolytic capacitors

Abstract

The present invention relates to a negative pressure packaging device for LP terminal type aluminum electrolytic capacitors, comprising: a cabinet, a capacitor body, characterized in that: a transmission mechanism is arranged on one side of the cabinet; the transmission mechanism is connected to an outer vacuum chamber; an inner vacuum chamber, a sealing mechanism, and a turntable are arranged inside the outer vacuum chamber; the inner vacuum chamber comprises a first sealing cover, a second sealing cover, and a sealing gasket; a waist device is arranged inside the first sealing cover; the inner vacuum chamber is connected to a lifting mechanism; a plurality of beam molds are arranged at intervals on the upper end of the turntable; the inside of the beam mold is used to accommodate the capacitor body; a vacuum storage mechanism is arranged on one side of the cabinet; the vacuum storage mechanism comprises a first vacuum storage tank and a second vacuum storage tank; the first vacuum storage tank is connected to the outer vacuum chamber; and the second vacuum storage tank is connected to the inner vacuum chamber. It is used to solve the problem in the prior art that the outer shell of the LP terminal type aluminum electrolytic capacitor bulges due to internal heat to generate gas expansion, resulting in a shortened product life.

Description

Technical Field

[0001] The invention relates to the technical field of capacitor manufacturing, in particular to negative pressure packaging equipment for LP terminal type aluminum electrolytic capacitors. Background Art

[0002] Capacitors refer to devices that hold electric charges. They are one of the electronic components used in large quantities in electronic devices. They are widely used in circuits for DC isolation, AC passthrough, coupling, bypass, filtering, tuning circuits, energy conversion, and control. A product with negative pressure packaging technology for LP terminal type aluminum electrolytic capacitors is a technological innovation for LP terminal type aluminum electrolytic capacitor products. For example, the product has a long life. Because the product is under negative pressure inside, the gas expansion in the internal space will not cause the shell to bulge under high temperature conditions, which will shorten the product's service life. Most of the existing LP terminal type aluminum electrolytic capacitor packaging is normal pressure packaging or single-layer negative pressure packaging. Such a packaging process cannot obtain an LP terminal type electrolytic capacitor with high internal negative pressure. During the operation of an LP terminal type aluminum electrolytic capacitor, the internal element structure will generate heat. Under normal pressure, due to the presence of air, the heat generated will generate expanding gas. Under negative pressure, even if heat is generated, there will be no gas expansion. Without the effect of gas expansion, the product shell will not bulge, which will shorten the service life. The traditional production technology of LP terminal type aluminum electrolytic capacitors cannot achieve long life under high temperature conditions, so there is an urgent need for a product with negative pressure packaging technology for LP terminal type aluminum electrolytic capacitors. Summary of the invention

[0003] Based on this, it is necessary to provide a negative pressure packaging device for LP terminal type aluminum electrolytic capacitors to solve the problem in the prior art that the LP terminal type electrolytic capacitors generate gas expansion due to internal heat, causing the shell to bulge, resulting in a shortened product life.

[0004] The present invention solves the technical problem by adopting the following technical solutions:

[0005] A negative pressure packaging device for LP terminal type aluminum electrolytic capacitors, comprising: a cabinet, a capacitor body, characterized in that: a transmission mechanism is arranged on one side of the cabinet; the transmission mechanism is connected to an outer vacuum chamber; an inner vacuum chamber, a sealing mechanism, and a turntable are respectively arranged inside the outer vacuum chamber; the inner vacuum chamber comprises a first sealing cover, a second sealing cover, and a sealing gasket; a waist device is arranged inside the first sealing cover; the inner vacuum chamber is connected to a lifting mechanism; a plurality of beam molds are arranged at intervals on the upper end of the turntable; the inside of the beam mold is used to accommodate the capacitor body; a vacuum storage mechanism is arranged on one side of the cabinet; the vacuum storage mechanism comprises a first vacuum storage tank and a second vacuum storage tank; the first vacuum storage tank is connected to the outer vacuum chamber; the second vacuum storage tank is connected to the inner vacuum chamber.

[0006] Preferably, the transmission mechanism includes a conveying track, a feeding mechanism, and a discharging mechanism; a conveying track for conveying the capacitor body is arranged below the feeding mechanism and the discharging mechanism; the feeding mechanism is used to transfer the capacitor body in the conveying track to the external vacuum chamber; the discharging mechanism is used to transfer the packaged capacitor body in the external vacuum chamber to the conveying track.

[0007] Preferably, the outer vacuum chamber comprises an outer vacuum chamber door opening mechanism and an observation window; the outer vacuum chamber door opening mechanism is used to seal and open the outer vacuum chamber.

[0008] Preferably, the first sealing cover is arranged above the turntable; the second sealing cover is arranged below the turntable; and the sealing gasket is arranged in the turntable.

[0009] Preferably, the lifting mechanism includes a first lifting mechanism of the inner vacuum chamber connected to the first sealing cover and a second lifting mechanism of the inner vacuum chamber connected to the second sealing cover; the first lifting mechanism of the inner vacuum chamber and the second lifting mechanism of the inner vacuum chamber are respectively used to push the first sealing cover and the second sealing cover close to each other for sealing and docking.

[0010] Preferably, the sealing mechanism comprises a transmission mechanism, a waist-binding device, and a push rod, and the sealing mechanism is used to seal the capacitor body.

[0011] Preferably, the beam mode runs through the rotating disk, and an opening end of the beam mode is exposed at an upper end surface of the rotating disk to accommodate the capacitor body.

[0012] The advantages and positive effects of the present invention are:

[0013] The present invention provides a negative pressure packaging device for LP terminal type aluminum electrolytic capacitors, which is used to solve the problem in the prior art that the LP terminal type aluminum electrolytic capacitors generate gas expansion due to internal normal pressure heating, causing the outer shell to bulge, resulting in a shortened product life. Compared with the prior art, the present invention has the following advantages:

[0014] The present invention provides a double negative pressure environment for the assembly of LP terminal type aluminum electrolytic capacitors by combining an outer vacuum chamber with an inner vacuum chamber, so that the LP terminal type aluminum electrolytic capacitor is in a completely sealed vacuum when assembled and sealed, and the cover is sealed once in the double negative pressure environment of the outer vacuum chamber and the inner vacuum chamber. After the assembly and sealing, the elements and electrolyte inside the LP terminal type aluminum electrolytic capacitor are in a vacuum environment. When the capacitor is working, heat is generated inside, and the electrolyte inside does not generate gas, which solves the problem that the outer shell of the capacitor bulges due to the expansion of gas generated by internal heat, resulting in a shortened product life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the device of the present invention from a first viewing angle.

[0017] Figure 2 It is a schematic diagram of the stereoscopic structure of the device of the present invention from a second viewing angle.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the device of the present invention from a third viewing angle.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the outer vacuum chamber of the present invention.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the transmission mechanism of the device of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the inner vacuum chamber and the turntable of the present invention.

[0022] Figure 7 It is a schematic diagram of a three-dimensional structure in which a sealing mechanism, an inner vacuum chamber and a turntable are combined according to the present invention.

[0023] Figure 8 The present invention Figure 7 A partial enlarged view of point A in the middle.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the combination of the waist-binding device and the turntable inside the first sealing cover of the present invention.

[0025] Explanation of the accompanying drawings: 1. Cabinet; 2. Transmission mechanism; 3. External vacuum chamber; 4. Internal vacuum chamber; 5. Lifting mechanism; 6. Sealing mechanism; 7. Turntable; 8. Vacuum storage mechanism; 9. Capacitor body; 201. Conveying track; 202. Feeding mechanism; 203. Discharging mechanism; 301. External vacuum chamber door opening mechanism; 302. Observation window; 401. First sealing cover; 402. Second sealing cover; 403. Sealing gasket; 501. First lifting mechanism of internal vacuum chamber; 502. Second lifting mechanism of internal vacuum chamber; 601. Transmission mechanism; 602. Waist device; 603. Ejector rod; 701. Beam mold; 801. First vacuum storage tank; 802. Second vacuum storage tank. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are further described in detail in conjunction with the accompanying drawings: The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figures 1 to 9 As shown, a negative pressure packaging device for LP terminal type aluminum electrolytic capacitors includes: a cabinet 1, a capacitor body 9, characterized in that: a transmission mechanism 2 is arranged on one side of the cabinet 1; the transmission mechanism 2 is connected to an outer vacuum chamber 3; an inner vacuum chamber 4, a sealing mechanism 6, and a turntable 7 are respectively arranged inside the outer vacuum chamber 3; the inner vacuum chamber 4 comprises a first sealing cover 401, a second sealing cover 402, and a sealing gasket 403; a waist device 602 is arranged inside the first sealing cover 401; the inner vacuum chamber 4 is connected to a lifting mechanism 5; a plurality of beam molds 701 are arranged at intervals on the upper end of the turntable 7; the beam mold 701 is used to accommodate the capacitor body 9; a vacuum storage mechanism 8 is arranged on one side of the cabinet 1; the vacuum storage mechanism 8 includes a first vacuum storage tank 801 and a second vacuum storage tank 802; the first vacuum storage tank 801 is connected to the outer vacuum chamber 3; the second vacuum storage tank 802 is connected to the inner vacuum chamber 4.

[0028] During operation, the capacitor body 9 to be packaged is pushed to the bottom of the feeding mechanism 202 by the conveying track 201, and the feeding mechanism 202 transfers the capacitor body 9 to be packaged to the beam mold 701 in the turntable 7 inside the outer vacuum chamber 3. Then the turntable 7 rotates to move the beam mold 701 and the capacitor body 9 to the bottom of the inner vacuum chamber 4. At this time, the first sealing cover 401 and the second sealing cover 402 are closed to each other through the cooperation of the lifting mechanism 5, and the capacitor body 9 to be packaged is sealed inside the inner vacuum chamber 4. Then the first vacuum storage tank 801 evacuates the outer vacuum chamber 3, and the second vacuum storage tank 802 evacuates the inner vacuum chamber 4. Until the outer vacuum chamber 3 and the inner vacuum chamber 4 reach the preset vacuum value. The outer vacuum chamber 3 and the inner vacuum chamber 4 form a double vacuum environment to ensure airtightness. At this time, the inside of the capacitor body 9 is also in a high vacuum state. In a double vacuum environment, the sealing mechanism 6 drives the waist device 602 and the push rod 603 inside the inner vacuum chamber 4 to perform waist sealing on the capacitor body 9 under a high vacuum state, so that the inside of the capacitor body 9 is isolated from the outside to form airtightness, and the capacitor body 9 is kept in a high vacuum state. After the waist sealing is completed, the outer vacuum chamber 3 and the inner vacuum chamber 4 return to normal atmospheric pressure. The turntable 7 rotates to move the beam mold 701 and the capacitor body 9 to the bottom of the discharge mechanism 203, and the discharge mechanism 203 moves the packaged capacitor body 9 to the conveying track 201 to complete the negative pressure packaging process. The negative pressure capacitor body 9 with high internal vacuum is obtained. By combining the outer vacuum chamber 3 with the inner vacuum chamber 4, a double negative pressure environment is provided for the assembly of the LP terminal type aluminum electrolytic capacitor, so that the LP terminal type aluminum electrolytic capacitor is in a completely sealed vacuum when it is assembled and sealed, and the waist cover is sealed once in the double negative pressure environment of the outer vacuum chamber 3 and the inner vacuum chamber 4. After assembly and sealing, the elements and electrolyte inside the LP terminal type aluminum electrolytic capacitor are in a vacuum environment. When the capacitor is working, it generates heat inside, but the internal electrolyte does not generate gas, which solves the problem of the capacitor generating gas expansion due to internal heat causing the shell to bulge, thus shortening the service life of the product.

[0029] In some embodiments, reference Figure 1 , Figure 5, the transmission mechanism 2 is arranged on one side of the cabinet 1; the transmission mechanism 2 is connected to the outer vacuum chamber 3. The transmission mechanism 2 includes a conveying track 201, a feeding mechanism 202, and a discharging mechanism 203; a conveying track 201 for conveying the capacitor body 9 is arranged below the feeding mechanism 202 and the discharging mechanism 203; the feeding mechanism 202 is used to transfer the capacitor body 9 in the conveying track 201 to the outer vacuum chamber 3; the discharging mechanism 203 is used to transfer the packaged capacitor body 9 in the outer vacuum chamber 3 to the conveying track 201. Specifically, in the embodiment, the capacitor body 9 is a circular cylindrical capacitor. The present invention does not limit the type of capacitor to be packaged, and can be a product of LP terminal type aluminum electrolytic capacitor, guide pin type capacitor, horn capacitor, bolt type capacitor.

[0030] When the equipment is running, the capacitor bodies 9 to be packaged are transferred one by one along the conveying track 201 to the bottom of the feeding mechanism 202. When the capacitor bodies 9 to be packaged arrive directly below the feeding mechanism 202, the conveying track 201 stops conveying. At this time, the feeding mechanism 202 clamps the capacitor bodies 9 to be packaged directly below and transfers them to the outer vacuum chamber 3. More specifically, the feeding mechanism 202 transfers the capacitor bodies 9 to be packaged to the beam mold 701 of the turntable 7 in the outer vacuum chamber 3, completing the preparation process before packaging, and then waiting for the next process, which is the negative pressure packaging link. After the negative pressure packaging process is completed, similarly, the discharging mechanism 203 is used to transfer the packaged capacitor bodies 9 in the outer vacuum chamber 3 to the conveying track 201.

[0031] In some embodiments, reference Figure 1 , Figure 5 , Figure 8 , the outer vacuum chamber 3 is respectively provided with an inner vacuum chamber 4, a sealing mechanism 6, and a turntable 7. Specifically, the outer vacuum chamber 3 has a rectangular or circular shape. In the present embodiment, the outer vacuum chamber 3 has a rectangular shape. The outer vacuum chamber 3 includes an outer vacuum chamber door opening mechanism 301 and an observation window 302; the outer vacuum chamber door opening mechanism 301 is used to seal and open the outer vacuum chamber 3. Specifically, the outer vacuum chamber door opening mechanism 301 is composed of a gate and a cylinder. The gate can be opened or sealed under the drive of the cylinder. When the gate is sealed, the entire outer vacuum chamber 3 is in a sealed state. The outer vacuum chamber door opening mechanism 301 controls the gate opening mode to control the gate to rise to open the gate and the gate to fall to close the gate. When it is necessary to transport the capacitor body 9 to be packaged into the outer vacuum chamber 3 or to take out the packaged capacitor body 9 from the outer vacuum chamber 3, the outer vacuum chamber door opening mechanism 301 controls the gate to open. In the negative pressure packaging link, the outer vacuum chamber door opening mechanism 301 controls the gate to close. An observation window 302 is provided on one side of the outer vacuum chamber 3 . The observation window 302 is made of transparent glass. The state inside the outer vacuum chamber 3 can be observed and understood at any time through the observation window 302 .

[0032] In some embodiments, reference Figure 6 , Figure 7 , Figure 8 , the inner vacuum chamber 4 comprises a first sealing cover 401, a second sealing cover 402, and a sealing gasket 403. Specifically, the first sealing cover 401 and the second sealing cover 402 are cup-shaped bodies with a hollow interior, one end of which has an opening, wherein the opening ends of the first sealing cover 401 and the second sealing cover 402 respectively match the sealing gasket 403 in the turntable 7, the first sealing cover 401 is arranged above the turntable 7; the second sealing cover 402 is arranged below the turntable 7; the sealing gasket 403 is arranged in the turntable 7. When the first sealing cover 401 and the second sealing cover 402 are respectively close to the extruded sealing gasket 403, a sealed space is formed inside the first sealing cover 401 and the second sealing cover 402.

[0033] In some embodiments, reference Figure 6 , Fig. 9 The sealing mechanism 6 includes a transmission mechanism 601, a waist device 602, and a push rod 603. The sealing mechanism 6 is used to seal the capacitor body 9. Specifically, the sealing mechanism 6 is mainly divided into two parts, the inner and outer parts. The transmission mechanism 601 is the outer part, and the transmission mechanism 601 provides the power required for packaging. The inner part is divided into a waist device 602 and a push rod 603. The waist device 602 is used to squeeze and seal the outer periphery of the capacitor seal. The push rod 603 can approach and move away from the rubber cover at the capacitor seal. When the push rod 603 approaches the rubber cover, it squeezes the rubber cover and plays a role in positioning the rubber cover to prevent the rubber cover from moving outward due to the airflow image when vacuuming.

[0034] The first sealing cover 401 is provided with a waist device 602. The waist device 602 is driven by the transmission mechanism 601. In this embodiment, the motor of the transmission mechanism 601 transmits power to the waist device 602 through a rotating shaft. Since the waist device 602 is arranged inside the first sealing cover 401, the waist packaging can be directly completed in a vacuum environment. The packaging process is reduced and the problem of poor packaging airtightness is improved.

[0035] In some embodiments, reference Figure 6 , Figure 7 , Figure 8 The inner vacuum chamber 4 is connected to a lifting mechanism 5; the lifting mechanism 5 comprises a first lifting mechanism 501 for the inner vacuum chamber connected to the first sealing cover 401 and a second lifting mechanism 502 for the inner vacuum chamber connected to the second sealing cover 402; the first lifting mechanism 501 for the inner vacuum chamber and the second lifting mechanism 502 for the inner vacuum chamber are respectively used to push the first sealing cover 401 and the second sealing cover 402 to be close to each other for sealing and docking.

[0036] Specifically, the first lifting mechanism 501 is connected to the upper end of the first sealing cover 401, and the first lifting mechanism 501 can drive the first sealing cover 401 to move in a vertical direction close to or away from the sealing gasket 403 in the turntable 7. The second lifting mechanism 502 is connected to the lower end of the second sealing cover 402, and the second lifting mechanism 502 can drive the second sealing cover 402 to move in a vertical direction close to or away from the sealing gasket 403 in the turntable 7. Under the mutual cooperation of the first lifting mechanism 501 and the second lifting mechanism 502, the opening ends of the first sealing cover 401 and the second sealing cover 402 are in contact with each other and separated from each other. When the opening ends of the first sealing cover 401 and the second sealing cover 402 are in contact with each other and sealed, the inner vacuum chamber 4 is formed. By evacuating, the inner vacuum chamber 4 is in a vacuum state.

[0037] In some embodiments, reference Fig. 9 , a plurality of beam molds 701 are arranged at intervals on the upper end of the rotating disk 7; the interior of the beam mold 701 is used to accommodate the capacitor body 9. The beam mold 701 runs through the rotating disk 7, and the open end of the beam mold 701 is exposed on the upper end surface of the rotating disk 7 to accommodate the capacitor body 9. Specifically, the rotating disk 7 can be driven by power to perform intermittent rotation around the center of the circle, and each intermittent rotation rotates the beam mold 701 to the bottom of the positive projection of the first sealing cover 401. The beam mold 701 is hollow and has an opening on the top, and the interior of the beam mold 701 is used to accommodate the capacitor body 9.

[0038] In some embodiments, reference Figure 1, a vacuum storage mechanism 8 is provided on one side of the cabinet 1; the vacuum storage mechanism 8 includes a first vacuum storage tank 801 and a second vacuum storage tank 802; the first vacuum storage tank 801 is connected to the outer vacuum chamber 3; the second vacuum storage tank 802 is connected to the inner vacuum chamber 4. Specifically, the first vacuum storage tank 801 is connected to the outer vacuum chamber 3, and the first vacuum storage tank 801 controls the air pressure of the outer vacuum chamber 3. Before packaging, the outer vacuum chamber 3 is first sealed, and the first vacuum storage tank 801 evacuates the outer vacuum chamber 3, so that the outer vacuum chamber 3 forms a vacuum state. The second vacuum storage tank 802 controls the air pressure of the inner vacuum chamber 4, and the second vacuum storage tank 802 evacuates the inner vacuum chamber 4, so that the inner vacuum chamber 4 forms a vacuum state. Since the capacitor body 9 to be packaged is finally waist packaged in the inner vacuum chamber 4. Therefore, the capacitor body 9 is packaged in the double high vacuum environment of the outer vacuum chamber 3 and the inner vacuum chamber 4, avoiding the problem of equipment leakage and poor negative pressure, and improving the traditional normal pressure packaging or equipment packaging method with insufficient airtightness. At this time, the interior of the capacitor body 9 is also in a high vacuum state, and the capacitor body 9 with internal negative pressure is obtained through waist packaging. The efficiency of negative pressure packaging is improved and the performance of the product is improved. The present invention provides a double negative pressure environment for the assembly of LP terminal type aluminum electrolytic capacitors by combining the outer vacuum chamber 3 with the inner vacuum chamber 4, so that the LP terminal type aluminum electrolytic capacitor is in a completely sealed vacuum when assembled and sealed, and the waist cover is sealed once in the double negative pressure environment of the outer vacuum chamber 3 and the inner vacuum chamber 4. After assembly and sealing, the elements and electrolyte inside the LP terminal type aluminum electrolytic capacitor are in a vacuum environment. When the capacitor is working, heat is generated inside, and the internal electrolyte does not generate gas, which solves the problem that the capacitor generates gas expansion due to internal heat, causing the outer shell to bulge, resulting in a shortened product life.

[0039] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive, and therefore the present invention is not limited to the embodiments described in the specific implementation manners. Any other implementation manners derived by those skilled in the art based on the technical solutions of the present invention also fall within the scope of protection of the present invention.

Claims

1. A negative pressure packaging device for LP terminal type aluminum electrolytic capacitors, comprising: A cabinet (1) and a capacitor body (9), characterized in that: a transmission mechanism (2) is arranged on one side of the cabinet (1); the transmission mechanism (2) is connected to an outer vacuum chamber (3); the transmission mechanism (2) comprises a conveying track (201), a feeding mechanism (202), and a discharging mechanism (203); a conveying track (201) for conveying the capacitor body (9) is arranged below the feeding mechanism (202) and the discharging mechanism (203); the feeding mechanism (202) is used to transfer the capacitor body (9) in the conveying track (201) to The outer vacuum chamber (3) is provided with a discharging mechanism (203) for transferring the packaged capacitor body (9) in the outer vacuum chamber (3) to a conveying track (201); the inner vacuum chamber (4), a sealing mechanism (6), and a turntable (7) are respectively arranged inside the outer vacuum chamber (3); the inner vacuum chamber (4) comprises a first sealing cover (401), a second sealing cover (402), and a sealing gasket (403); a waist device (602) is arranged inside the first sealing cover (401); the inner vacuum chamber (4) is connected to the lifting mechanism (5); The lifting mechanism (5) comprises a first lifting mechanism (501) for the inner vacuum chamber connected to the first sealing cover (401) and a second lifting mechanism (502) for the inner vacuum chamber connected to the second sealing cover (402); the first lifting mechanism (501) for the inner vacuum chamber and the second lifting mechanism (502) for the inner vacuum chamber are respectively used to push the first sealing cover (401) and the second sealing cover (402) to be close to each other and sealed and docked; a plurality of beam molds (701) are arranged at intervals at the upper end of the turntable (7); the beam molds (701) are used to accommodate the electric A container body (9); a vacuum storage mechanism (8) is arranged on one side of the cabinet (1); the vacuum storage mechanism (8) comprises a first vacuum storage tank (801) and a second vacuum storage tank (802); the first vacuum storage tank (801) is connected to the outer vacuum chamber (3); the second vacuum storage tank (802) is connected to the inner vacuum chamber (4); the sealing mechanism (6) comprises a transmission mechanism (601), a waist-binding device (602), and a push rod (603); the sealing mechanism (6) is used to seal the capacitor body (9).

2. The negative pressure packaging equipment for LP terminal type aluminum electrolytic capacitor according to claim 1, characterized in that: The outer vacuum chamber (3) comprises an outer vacuum chamber door opening mechanism (301) and an observation window (302); the outer vacuum chamber door opening mechanism (301) is used to seal and open the outer vacuum chamber (3).

3. The negative pressure packaging equipment for LP terminal type aluminum electrolytic capacitor according to claim 1, characterized in that: The first sealing cover (401) is arranged above the rotating disk (7); the second sealing cover (402) is arranged below the rotating disk (7); and the sealing gasket (403) is arranged in the rotating disk (7).

4. The negative pressure packaging equipment for LP terminal type aluminum electrolytic capacitor according to claim 1, characterized in that: The beam mode (701) penetrates the rotating disk (7), and an opening end of the beam mode (701) is exposed on the upper end surface of the rotating disk (7) to accommodate the capacitor body (9).

Images