A foil guiding type capacitor assembling device

Abstract

The application relates to a lead foil type capacitor assembly device which comprises a pressing mechanism, a bearing mechanism and a support, and is characterized in that the pressing mechanism is arranged on the support and is used for extracting negative pressure after sealing the open end of a capacitor body, so that the inside of the capacitor body is in a negative pressure state; the bearing mechanism is arranged below the pressing mechanism and is used for bearing the capacitor body close to and far from the pressing mechanism; the pressing mechanism comprises a transmission assembly and a cover plate, one end of the transmission assembly is provided with the cover plate, the cover plate is arranged between the transmission assembly and the bearing mechanism, one end of the cover plate is provided with a groove used for abutting against the open end of the capacitor body, and one side of the cover plate is provided with an air extraction assembly used for extracting negative pressure. The technical problem that, in the prior art, the sealing body of the capacitor is moved outward due to the adsorption of airflow when air is extracted, the sealing body cannot be fixed at a predetermined position, the air tightness of capacitor assembly is affected, the stability and service life of the product are improved.

Description

Technical Field

[0001] This invention relates to the field of capacitor technology, and in particular to a foil-type capacitor assembly device. Background Technology

[0002] Capacitors are among the most widely used electronic components in electronic devices. During operation, capacitors generate heat. Capacitors assembled under normal pressure produce gas, increasing internal pressure and potentially causing them to burst, thus shortening their lifespan. Capacitors assembled under negative pressure, however, do not produce gas, extending their lifespan. Traditionally, capacitors are assembled and packaged under normal atmospheric pressure. In current technology, when evacuating the capacitor under negative pressure, it's impossible to avoid the sealing material shifting due to the airflow, making it impossible to fix in the intended position and affecting the airtightness of the assembled capacitor. Summary of the Invention

[0003] Therefore, it is necessary to provide a foil-type capacitor assembly device to solve the technical problem in the prior art where the sealing body of the capacitor moves out of the body due to the suction effect of the airflow during the evacuation process, and cannot be fixed in the predetermined position, thus affecting the airtightness of the capacitor assembly.

[0004] The technical problem solved by this invention is achieved through the following technical solution:

[0005] A foil-type capacitor assembly device for pressing and encapsulating capacitors includes: a pressing mechanism, a supporting mechanism, and a bracket; characterized in that: the pressing mechanism is disposed on the bracket and is used to seal the open end of the capacitor body and then draw negative pressure, so that the inside of the capacitor body is in a negative pressure state.

[0006] The supporting mechanism is located below the pressing mechanism and is used to support the capacitor body as it moves closer to and away from the pressing mechanism.

[0007] The pressing mechanism includes a transmission component and a cover plate. The cover plate is provided at one end of the transmission component. The cover plate is located between the transmission component and the bearing mechanism. A groove for abutting the open end of the capacitor body is provided at one end of the cover plate. An air extraction component for drawing negative pressure is provided on one side of the cover plate.

[0008] Furthermore, the transmission assembly includes: a first cylinder, a second cylinder, a slider, and a fixed base. The first cylinder and the second cylinder are respectively disposed on both sides of the slider, and one end of the first cylinder is connected to the fixed arm.

[0009] Furthermore, a groove is provided on one side of the slider, allowing the slider to slide on one side of the first cylinder, and a fixed seat is connected to one end of the slider.

[0010] Furthermore, the first cylinder includes a drive rod, one end of which is connected to the fixed seat, for pushing the fixed seat, the second cylinder, and the slider together away from or towards the first cylinder.

[0011] Furthermore, the fixing seat is provided with a plurality of first through holes, through which a support column passes. The end of the support column away from the fixing seat is connected to the cover plate. A top rod may also pass through the first through hole.

[0012] Furthermore, one end of the push rod is connected to the second cylinder, and the end of the push rod away from the second cylinder passes through the cover plate.

[0013] Furthermore, the support column and the top rod are respectively provided with elastic elements, and the two ends of the elastic elements abut against the cover plate and the fixing seat respectively.

[0014] Furthermore, a second through hole is provided in the cover plate, which communicates with the groove. A sealing element is provided on one side of the groove, and the sealing element is used to abut against the open end of the capacitor body.

[0015] Furthermore, the supporting mechanism is provided with a plurality of bundles, which are used to support the capacitor body.

[0016] The advantages and positive effects of this invention are:

[0017] This invention provides a foil-type capacitor assembly device to solve the technical problem in the prior art where the sealing body of the capacitor shifts outward due to the suction effect of airflow during evacuation, making it impossible to fix in the predetermined position and affecting the airtightness of the capacitor assembly. Compared with the prior art, this invention has the following advantages:

[0018] 1. This invention, by setting the top rod and cover plate together, avoids the problem of poor airtightness caused by the seal body shifting outside during negative pressure assembly and packaging. Assembly and packaging is more convenient and efficient. It realizes negative pressure assembly and packaging. Under negative pressure, the electrolyte inside the aluminum shell can be adsorbed onto the element. Under negative pressure, the element can more fully absorb the electrolyte, making the capacitor performance more stable and its service life longer. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a first-view three-dimensional structural diagram of the pressing mechanism of the present invention.

[0022] Figure 3 This is a two-dimensional structural diagram of the pressing mechanism of the present invention from a second perspective.

[0023] Figure 4 This is a partial three-dimensional structural diagram of the pressing mechanism of the present invention.

[0024] Figure 5 This is a schematic diagram of the pressing mechanism of the present invention pressing against the capacitor body.

[0025] Figure 6 This is a partial three-dimensional structural diagram of the pressing mechanism of the present invention.

[0026] Figure 7 This is a schematic diagram of the sealing between the cover plate and the capacitor body of the present invention.

[0027] Explanation of reference numerals in the attached drawings: 1. Pressing mechanism; 2. Bearing mechanism; 3. Support; 4. Capacitor body; 101. Transmission assembly; 102. Cover plate; 201. Bundle mold; 301. Fixed arm; 401. Outer shell; 402. Sealing body; 1011. First cylinder; 1012. Second cylinder; 1013. Slider; 1014. Fixed seat; 1015. Support column; 1016. Push rod; 1017. Elastic element; 1021. Groove; 1022. Second through hole; 1023. Sealing element; 1024. Air extraction assembly; 10111. Drive rod; 10131. Slide groove; 10141. First through hole. Detailed Implementation

[0028] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings: The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be understood that the terms "center," "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. In addition, the term "comprising" and any variations thereof mean "at least including." Furthermore, the descriptions involving "first," "second," etc., in this invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integrally formed connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] like Figures 1 to 7 As shown, in some embodiments, a foil-type capacitor assembly device for pressing and encapsulating capacitors includes: a pressing mechanism 1, a supporting mechanism 2, and a bracket 3; characterized in that: the pressing mechanism 1 is disposed on the bracket 3 and is used to seal the open end of the capacitor body 4 and then draw negative pressure, so that the inside of the capacitor body 4 is in a negative pressure state; the supporting mechanism 2 is disposed below the pressing mechanism 1 and is used to support the capacitor body 4 to move closer to and away from the pressing mechanism 1; the pressing mechanism 1 includes a transmission component 101 and a cover plate 102, one end of the transmission component 101 is provided with the cover plate 102, the cover plate 102 is disposed between the transmission component 101 and the supporting mechanism 2, one end of the cover plate 102 is provided with a groove 1021 for abutting the open end of the capacitor body 4, and one side of the cover plate 102 is provided with a vacuum component 1024 for drawing negative pressure.

[0032] During operation, the pressing mechanism 1, in conjunction with the bearing mechanism 2, presses the open end of the capacitor body 4 and then applies negative pressure to its interior, creating a negative pressure state inside the capacitor body 4. Under this negative pressure, the open end of the capacitor body 4 is sealed, resulting in a capacitor body 4 with an internal negative pressure state. Simultaneously with the negative pressure application, the top rod 1016 provides support, ensuring that the sealing body 402 within the capacitor body 4 remains in a predetermined position, guaranteeing the airtightness between the outer shell 401 and the sealing body 402. This solves the technical problem in existing technologies where the sealing body is subject to airflow adsorption during evacuation, causing it to shift out of the capacitor and fail to remain fixed in the predetermined position, thus affecting the airtightness of the capacitor assembly.

[0033] More specifically, the outer casing 401 is an aluminum shell, that is, a cylindrical cup-shaped body cast from aluminum. The sealing body 402 is a rubber stopper or bakelite cap, and the sealing body 402 is cylindrical in shape, with its outer diameter being larger than the inner diameter of the outer casing 401. The core of the capacitor body 4 is formed into a cylindrical shape by combining electrolytic aluminum foil, conductive foil, and dielectric paper.

[0034] In some embodiments, the transmission assembly 101 includes: a first cylinder 1011, a second cylinder 1012, a slider 1013, and a fixed base 1014. The first cylinder 1011 and the second cylinder 1012 are respectively disposed on both sides of the slider 1013. One end of the first cylinder 1011 is connected to the fixed arm 301. Specifically, as shown... Figure 2 and Figure 3 As shown, the transmission assembly 101 is installed in the bracket 3. The transmission assembly 101 is connected and fixed to the bracket 3 via a fixing arm 301. In this embodiment, the bracket 3 has an L-shaped structure, causing the transmission assembly 101 to suspend below the bracket 3. The bracket 3 serves to fix and limit the transmission assembly 101, ensuring that the transmission assembly is positioned above the bearing mechanism 2. More specifically, a first cylinder 1011 and a second cylinder 1012 are respectively provided on both sides of the slider 1013. The slider 1013 connects the first cylinder 1011 and the second cylinder 1012 together, and the first cylinder 1011 is fixed to the bracket 3 via the fixing arm 301. When the first cylinder 1011 is working, it can push the slider 1013 and the second cylinder 1012 to move together.

[0035] like Figure 2 As shown, in some embodiments, a groove 10131 is provided on one side of the slider 1013, allowing the slider 1013 to slide on one side of the first cylinder 1011. One end of the slider 1013 is connected to a fixed seat 1014. Specifically, a groove 10131 is provided on one side of the slider 1013. Furthermore, a limiting slide rail matching the groove 10131 is provided on the side of the first cylinder 1011 opposite to the slider 1013, allowing the slider 1013 to slide freely on one side of the first cylinder 1011, with its sliding direction consistent with the length direction of the groove 10131.

[0036] In some embodiments, the first cylinder 1011 includes a drive rod 10111, one end of which is connected to the fixed seat 1014 for pushing the fixed seat 1014, the second cylinder 1012, and the slider 1013 together away from or towards the first cylinder 1011. Specifically, the first cylinder 1011 provides driving force, that is, the first cylinder 1011 pushes the drive rod 10111 to perform telescopic movement. One end of the drive rod 10111 is connected to the fixed seat 1014. The first cylinder 1011 drives the fixed seat 1014 to move through the drive rod 10111. Since one end of the slider 1013 is connected to the fixed seat 1014, when the first cylinder 1011 drives the fixed seat 1014 to move through the drive rod 10111, the slider 1013 and the fixed seat 1014 move together. Furthermore, a second cylinder 1012 is provided on one side of the slider 1013. During operation, the first cylinder 1011 can simultaneously push the slider 1013, the fixed seat 1014 and the second cylinder 1012 to move together through the drive rod 10111, moving away from or closer to the first cylinder 1011.

[0037] In some embodiments, such as Figure 5 and Figure 6 As shown, the fixing base 1014 is provided with a plurality of first through holes 10141, through which a support column 1015 passes. The end of the support column 1015 away from the fixing base 1014 is connected to the cover plate 102. A top rod 1016 may also pass through the first through hole 10141. Specifically, the fixing base 1014 is provided with a plurality of first through holes 10141, and the shape of the first through hole 10141 can be one of a circle, a rectangle, or a polygon. In this embodiment, the shape of the first through hole 10141 is circular. The support column 1015 passes through the first through hole 10141, and the outer diameter of the support column 1015 matches the inner diameter of the first through hole 10141. The support column 1015 can move freely within the first through hole 10141. The end of the support column 1015 away from the fixed base 1014 is connected to the cover plate 102. After the support column 1015 is connected to the cover plate 102, during operation, the support column 1015 plays a supporting and limiting role for the cover plate 102, so that when the cover plate 102 is squeezed by external force, the cover plate 102 moves away from or closer to the fixed base 1014. The cover plate 102 moves on the same axis, so that when the pressing mechanism 1 presses the capacitor body 4, the cover plate 102 matches the open end of the capacitor body 4.

[0038] In some embodiments, one end of the push rod 1016 is connected to the second cylinder 1012, and the other end of the push rod 1016 away from the second cylinder 1012 passes through the cover plate 102. Specifically, a portion of the push rod 1016 passes through the first through hole 10141 of the fixing seat 1014, and the push rod 1016 can move freely in the first through hole 10141. One end of the push rod 1016 is connected to the second cylinder 1012, and the second cylinder 1012 can provide driving force to the push rod 1016. The end of the push rod 1016 away from the second cylinder 1012 passes through the cover plate 102. Under the drive of the second cylinder 1012, the push rod 1016 moves, increasing the depth of the push rod 1016 inserted into the cover plate 102, so that the end of the push rod 1016 inserted into the cover plate 102 abuts against the sealing body 402 of the capacitor body 4.

[0039] Furthermore, such as Figure 4 As shown, a second through hole 1022 is provided in the cover plate 102, which communicates with the groove 1021. A sealing element 1023 is provided on one side of the groove 1021, and the sealing element 1023 is used to abut against the open end of the capacitor body 4. Specifically, the cover plate 102 has a second through hole 1022, and the push rod 1016 is inserted into the groove 1021 in the cover plate 102 through the second through hole 1022. The contact point between the second through hole 1022 and the push rod 1016 is airtight. During operation, to ensure the airtightness of the groove 1021, a sealing element 1023 is provided on one side of the groove 1021, and the sealing element 1023 is used to abut against the open end of the capacitor body 4. More specifically, the seal 1023 is an elastic seal. The seal 1023 is disposed on the outer periphery of the groove 1021. In this embodiment, the end face of the seal 1023 is provided with a recess. When the pressing mechanism 1 abuts against the open end of the outer shell 401 of the capacitor body 4, the recess of the seal 1023 matches the open end of the outer shell 401, so that the groove 1021 in the cover plate 102 seals the inside of the outer shell 401, forming a sealed space.

[0040] Furthermore, the support column 1015 and the top rod 1016 are respectively provided with elastic elements 1017, and the two ends of the elastic elements 1017 abut against the cover plate 102 and the fixing seat 1014 respectively. Specifically, the elastic element 1017 can be elastic plastic or a spring; in this embodiment, the elastic element 1017 is a spring. The elastic elements 1017 on the support column 1015 and the top rod 1016 are used to eliminate the collision generated when the cover plate 102 abuts against the outer casing 401.

[0041] In some embodiments, the support mechanism 2 is provided with a plurality of bundled molds 201, which are used to support the capacitor body 4. In this embodiment, the support mechanism 2 is a rotating disk, specifically, the support mechanism 2 is provided with a plurality of bundled molds 201. More specifically, the bundled molds 201 are spaced apart along the circumference of the support mechanism 2. The support mechanism 2 rotates about its own axis, causing the bundled molds 201 to move the capacitor body 4 away from and closer to the underside of the pressing mechanism 1.

[0042] During operation, the bracket 3 fixes the pressing mechanism 1 above the supporting mechanism 2. The supporting mechanism 2 rotates around its own axis, and each mold 201 carries a capacitor body 4. The rotation of the supporting mechanism 2 moves the mold 201 together with the capacitor body 4 to directly below the pressing mechanism 1. Driven by the first cylinder 1011, the pressing mechanism 1 is pressed down, so that the cover plate 102 in the pressing mechanism 1 abuts against the opening end of the outer shell 401 of the capacitor body 4. When the pressing mechanism 1 abuts against the opening end of the outer shell 401 of the capacitor body 4, the recess of the sealing member 1023 matches the opening end of the outer shell 401, so that the groove 1021 in the cover plate 102 seals the inside of the outer shell 401, forming a sealed space. The second cylinder 1012 drives the push rod 1016, increasing the depth of the push rod 1016 inserted into the groove 1021 in the cover plate 102 until the push rod 1016 abuts against the sealing body 402 inside the capacitor body 4, fixing the sealing body 402 in a preset position. Then, the suction assembly 1024 evacuates air from the inside of the outer casing 401, creating a negative pressure state inside the outer casing 401. Due to the push rod 1016's abutment against the sealing body 402, the sealing body 402 remains in the predetermined position. After the waisting process, a capacitor body 4 with good airtightness and internal negative pressure is obtained. This technology avoids the disadvantage that when the suction assembly 1024 evacuates air from the inside of the outer casing 401, the airflow adsorbs the sealing body 402, causing the sealing body 402 to move outward and fail to be fixed in the predetermined position, resulting in poor airtightness between the sealing body 402 and the outer casing 401.

[0043] It should be emphasized that the embodiments described in this invention are illustrative rather than limiting. Therefore, this invention is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this invention also fall within the scope of protection of this invention.

Claims

1. A foil-type capacitor assembly device for press-fitting and encapsulating capacitors, comprising: Pressing mechanism (1), bearing mechanism (2), bracket (3); characterized in that: the pressing mechanism (1) is disposed on the bracket (3) and is used to seal the opening end of the capacitor body (4) and draw negative pressure, so that the inside of the capacitor body (4) is in a negative pressure state; The bearing mechanism (2) is located below the pressing mechanism (1) and is used to support the capacitor body (4) as it moves closer to and away from the pressing mechanism (1). The pressing mechanism (1) includes a transmission assembly (101) and a cover plate (102). The cover plate (102) is provided at one end of the transmission assembly (101), and the cover plate (102) is disposed between the transmission assembly (101) and the bearing mechanism (2). The transmission assembly (101) includes a first cylinder (1011), a second cylinder (1012), and a fixed seat (1014). The fixed seat (1014) is provided with a plurality of first through holes (10141), and a support column (1015) passes through the first through hole (10141). 1015) The end away from the fixed base (1014) is connected to the cover plate (102), and the first through hole (10141) is provided with a push rod (1016); one end of the push rod (1016) is connected to the second cylinder (1012), and the end of the push rod (1016) away from the second cylinder (1012) is provided in the cover plate (102); one end of the cover plate (102) is provided with a groove (1021) for abutting the opening end of the capacitor body (4), and one side of the cover plate (102) is provided with a vacuum assembly (1024) for drawing negative pressure.

2. The foil-type capacitor assembly device according to claim 1, characterized in that: The transmission assembly (101) further includes a slider (1013), on which the first cylinder (1011) and the second cylinder (1012) are respectively provided on both sides, and one end of the first cylinder (1011) is connected to the fixed arm (301).

3. The foil-type capacitor assembly device according to claim 2, characterized in that: The slider (1013) has a groove (10131) on one side, so that the slider (1013) slides on the side of the first cylinder (1011), and a fixed seat (1014) is connected to one end of the slider (1013).

4. The foil-type capacitor assembly device according to claim 2, characterized in that: The first cylinder (1011) includes a drive rod (10111), one end of which is connected to the fixed seat (1014) and is used to push the fixed seat (1014), the second cylinder (1012), and the slider (1013) to move away from or towards the first cylinder (1011).

5. The foil-type capacitor assembly device according to claim 1, characterized in that: The support column (1015) and the top rod (1016) are respectively provided with elastic members (1017), and the two ends of the elastic members (1017) abut against the cover plate (102) and the fixing seat (1014).

6. The foil-type capacitor assembly device according to claim 1, characterized in that: The cover plate (102) has a second through hole (1022) which communicates with the groove (1021). A sealing element (1023) is provided on one side of the groove (1021) and the sealing element (1023) is used to abut against the opening end of the capacitor body (4).

7. The foil-type capacitor assembly device according to claim 1, characterized in that: The bearing mechanism (2) is provided with a plurality of bundles (201), which are used to support the capacitor body (4).

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