CN115101358B

CN115101358B - Method for assembling capacitor

Info

Publication number: CN115101358B
Application number: CN202210730153.6A
Authority: CN
Inventors: 杨中一; 贾仲恺; 杨晨光; 史建宏
Original assignee: Wuxi Xinfeng Capacitor Co ltd
Current assignee: Wuxi Xinfeng Capacitor Co ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2024-05-28
Anticipated expiration: 2042-06-24
Also published as: CN115101358A

Abstract

The application discloses a method for assembling a capacitor, which comprises the following steps: arranging a plurality of capacitive cores into a first set of core rows; welding a first connecting strip at a first end of a first group of core rows; arranging the plurality of capacitive cores into a second set of core rows; welding a second connecting strip at the first end of the second group of core rows 1 b; welding the first connecting strip and the first busbar so that the first busbar can rotate relative to the first group of core rows; turning the first busbar over to a second set of core rows, and welding the first busbar and the second connecting strip, thereby fixing the first busbar and the second set of core rows; and turning the second group of core bars and the first busbar onto the first group of core bars, and welding the first connecting strip and the first busbar again so as to fix the first busbar and the first group of core bars. The assembly method of the capacitor provided by the application is simple and reliable, and the double-core-row capacitor can be assembled rapidly.

Description

Method for assembling capacitor

Technical Field

The application relates to the technical field of capacitor manufacturing methods, in particular to an assembling method of a capacitor.

Background

The capacitor is one of electronic elements used in a large number in electronic equipment, plays an important role in circuits such as tuning, bypass, coupling and filtering, and is widely applied to industries such as new energy, energy conservation, power supply, electric locomotives and the like.

The traditional capacitor has simple structure and few parts, does not need higher-precision operation, and can be directly assembled on a production line.

However, with the improvement of the capacitor structure, in order to ensure the accuracy of assembly and the quality of the finished product, the assembly method of the parts needs to be designed in a targeted manner to ensure the quality of the finished product.

Disclosure of Invention

The application aims to overcome the defects in the prior art and provide a method for assembling a capacitor.

In order to achieve the technical purpose, the application provides an assembling method of a capacitor, which comprises the following steps:

Arranging a plurality of capacitive cores into a first set of core rows;

welding a first connecting strip at a first end of a first group of core rows;

arranging the plurality of capacitive cores into a second set of core rows;

welding a second connecting strip at the first end of the second group of core rows;

Welding the first connecting strip and the first busbar so that the first busbar can rotate relative to the first group of core rows;

turning the first busbar over to a second set of core rows, and welding the first busbar and the second connecting strip, thereby fixing the first busbar and the second set of core rows;

and turning the second group of core bars and the first busbar onto the first group of core bars, and welding the first connecting strip and the first busbar again so as to fix the first busbar and the first group of core bars.

Further, the first set of rows includes at least two rows of capacitive cores, and any one row includes at least two capacitive cores; a first connecting strip is welded between any two rows of adjacent capacitor cores.

Further, the second set of core rows includes at least two rows of capacitive cores, and any one row includes at least two capacitive cores; a second connecting strip is welded between any two adjacent capacitor cores.

Further, the first and second sets of core rows each include: the whole row part comprises N rows and M columns of capacitor cores; a side row portion including n rows of m columns of capacitor cores; wherein, N and M are natural numbers not less than 2, N is a natural number less than N, and M is a natural number less than M; along the row direction, the whole row part is arranged at one side of the side row part.

Further, only one end of the first connecting strip connected with the side row part protrudes out of the first group of core rows; both ends of the first connecting strip which are not connected with the side row part protrude out of the first group of core rows.

Further, the whole row part comprises three rows and five columns of capacitor cores, the side row part comprises two rows and two columns of capacitor cores, and four first connecting strips are welded at the first ends of the first group of core rows; when the first connecting strip and the first busbar are welded, one end, far away from the side row part, of the first connecting strip for connecting two adjacent rows of capacitor cores in the whole row part is welded to the first busbar; after the first busbar and the second connecting strip are welded, the second group of core rows and the first busbar are turned over to the first group of core rows, and then the ends to be welded of the four first connecting strips are welded to the first busbar.

Further, before welding the first busbar and the first connecting strip, the first busbar is arranged on the first connecting strip, and at least one end of the first connecting strip protrudes out of the first busbar; before welding, the first connecting strip protruding out of the first busbar is folded onto the first busbar, and a folding part is welded; and/or before welding the first busbar and the second connecting strip, turning the first busbar onto the second connecting strip, wherein at least one end of the second connecting strip protrudes out of the first busbar; before welding, the second connecting strip protruding out of the first busbar is folded onto the first busbar, and the folded part is welded.

Further, welding a third connecting strip at the second end of the first group of core rows before welding the first connecting strip of the first busbar; and/or welding a fourth connecting strip at the second end of the second group of core rows before welding the first busbar and the second connecting strip.

Further, welding a second busbar on the third connecting strip; and/or welding a third busbar on the fourth connecting strip.

Further, placing the first group of core rows and the second group of core rows welded with the first busbar, the second busbar and the third busbar into the shell; an insulator is poured into the housing.

The application also provides an assembling method of the capacitor, which comprises the following steps: arranging a plurality of capacitive cores into a first set of core rows; welding a first connecting strip at a first end of a first group of core rows; arranging the plurality of capacitive cores into a second set of core rows; welding a second connecting strip at the first end of the second group of core rows 1 b; welding the first connecting strip and the first busbar so that the first busbar can rotate relative to the first group of core rows; turning the first busbar over to a second set of core rows, and welding the first busbar and the second connecting strip, thereby fixing the first busbar and the second set of core rows; and turning the second group of core bars and the first busbar onto the first group of core bars, and welding the first connecting strip and the first busbar again so as to fix the first busbar and the first group of core bars. The connecting strip is arranged to connect the core row and the busbar, so that the connection condition of the connecting strip and the core row can be confirmed, the connection condition of the connecting strip and the busbar can be confirmed, and the stable connection of the core row and the busbar is facilitated. The first connecting strip is welded once, so that the first busbar can be turned over to the second group of core bars conveniently, and the first busbar can be turned over to the first group of core bars conveniently along with the second group of core bars; through carrying out the secondary welding to first connecting strip, can fix first female row and first group core row, and then fix first group core row and second group core row. The assembly method of the capacitor provided by the application is simple and reliable, and the double-core-row capacitor can be assembled rapidly.

Drawings

FIG. 1 (a-c) is a schematic flow chart of a method for assembling a capacitor according to the present application;

FIGS. 1 (d-f) are schematic views illustrating the subsequent steps of the method of assembling the capacitor shown in FIGS. 1 (a-c);

FIG. 2 (a-c) is a schematic flow chart of a method for assembling a capacitor according to the present application;

FIGS. 2 (d-e) are schematic views illustrating the subsequent steps of the method for assembling the capacitor shown in FIGS. 2 (a-c);

FIG. 3 is a schematic diagram illustrating an assembly process of a third connecting bar and a second busbar at a second end of the first set of core rows shown in FIG. 2;

FIG. 4 is a schematic diagram of an assembly process of a fourth connecting bar and a third busbar at a second end of the second set of rows of cores shown in FIG. 2;

FIG. 5 is an exploded view of a capacitor according to the present application;

fig. 6 is a schematic structural diagram of another capacitor according to the present application.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The application provides an assembling method of a capacitor, which comprises the following steps:

Arranging a plurality of capacitor cores into a first group of core rows 1a;

welding a first connecting strip 2a at a first end of the first group of core rows 1 a;

arranging a plurality of capacitor cores into a second group of core rows 1b;

Welding a second connecting strip 2b at the first end of the second group of core rows 1 b;

Welding the first connecting strip 2a and the first busbar 3a so that the first busbar 3a can rotate relative to the first set of core rows 1 a;

turning the first busbar 3a over the second set of core rows 1b, and welding the first busbar 3a and the second connecting strip 2b, thereby fixing the first busbar 3a and the second set of core rows 1b;

The second set of core bars 1b and the first busbar 3a are turned over onto the first set of core bars 1a, and the first connecting bar 2a and the first busbar 3a are welded again, thereby fixing the first busbar 3a and the first set of core bars 1a.

When the capacitor cores are arranged, the first group of core rows 1a and the second group of core rows 1b may be arranged simultaneously, or the first group of core rows 1a and the second group of core rows 1b may be arranged sequentially or sequentially. Similarly, the first connecting bar 2a and the second connecting bar 2b may be arranged at the same time, or the first connecting bar 2a and the second connecting bar 2b may be arranged sequentially or sequentially.

To facilitate the inversion of the first busbar 3a onto the second set of core rows 1b, the second set of core rows 1b may be arranged side by side with the first set of core rows 1 a. At this time, the second core array 1b is located at one side of the first core array 1a, and during one welding, the first busbar 3a is connected with a portion of the first connecting strip 2a close to the second core array 1b, the first busbar 3a is turned over, and the first busbar 3a can drop onto the second core array 1b with the first connecting strip 2 a.

It should be noted that, when the capacitor cores are arranged, the first core array 1a and the second core array 1b may be directly arranged side by side, or after the first core array 1a and the second core array 1b are arranged, the positions of the first core array 1a and/or the second core array 1b may be adjusted so that they are arranged side by side.

Alternatively, when the first group of core rows 1a and the second group of core rows 1b are arranged side by side, the structures of both are symmetrical. In this way, the power of the capacitor can be effectively ensured, and the first busbar 3a can be conveniently and accurately connected with two groups of core rows (the first group of core rows 1a or the second group of core rows 1 b).

It should be noted that, the core row has two electrode terminals (i.e., a first terminal and a second terminal), and after the core row is connected to the circuit, the two electrode terminals of the same core row can be positive and negative terminals. The application does not limit the properties of the electrode tips of the core row; if desired, the two electrode terminals of the same core row may be nonpolar terminals.

The present application is also not limited to the specific properties of the "first end" and "second end" of the first group of core rows 1a, and the "first end" and "second end" of the second group of core rows 1b, and the "first" and "second" are used only to distinguish the electrode ends. In the present application, the first and second sets of core rows 1a and 1b are used to connect one end of the first busbar 3a, i.e. their "first end", and the other end opposite thereto, i.e. their "second end".

It should be further noted that, since the group of core rows includes a plurality of capacitor cores, if the ends of the capacitor cores are directly welded to the busbar, the capacitor cores are difficult to be fixed together with the busbar due to large area and fast heat dissipation of the busbar, even if the welding is successful, the connection effect is difficult to be ensured, and the welding also can damage the film of the capacitor cores. Meanwhile, if the core bar is directly connected with the busbar, since the connection part is the end part of the capacitor core and the side surface of the busbar, after the welding is completed, if the moving operation such as turning is not performed, the specific condition of the connection part is difficult to confirm, and whether the connection is stable or not cannot be confirmed.

For this purpose, the application connects the capacitive core with the busbar by means of connecting strips (first connecting strip 2a and second connecting strip 2 b).

Wherein the connection bars are made of conductive materials, for example, in the embodiment shown in fig. 1 to 5, the connection bars are made of copper sheets and are made into a long strip shape.

In order to facilitate the connection between the capacitor cores and the connecting strips and ensure the connection between the connecting strips and the corresponding capacitor cores to be stable, any connecting strip is arranged between two adjacent rows or two columns of capacitor cores; at this time, both sides in the width direction of any one connecting bar are respectively connected to two capacitor cores in the same row or the same column. Therefore, when the capacitor core and the connecting strip are connected in a welding mode and the like, whether the defects such as cold joint, missing welding and overselding exist or not can be confirmed by observing the connection state of the side edge of the connecting strip and the capacitor core, and therefore welding failure is effectively avoided.

Of course, if desired, a single connecting strip can be connected to multiple rows and columns of capacitive cores simultaneously. The application is not limited to the number and specific configuration of the attachment strips disposed in one core row.

In summary, the connecting strip is arranged to connect the core row and the busbar, which is not only beneficial to confirm the connection condition of the connecting strip and the core row, but also beneficial to confirm the connection condition of the connecting strip and the busbar, and further beneficial to the stable connection of the core row and the busbar.

It should be further added that the busbar (the first busbar 3a, the second busbar 3b or the third busbar 3 c) is made of a conductive material (such as copper); any busbar is connected with one end of a group of core rows, and can be simultaneously connected with a plurality of capacitor cores in the same core row, thereby playing roles of shaping and converging.

Further, the busbar is provided with an electrode, and the electrode is also made of a conductive material; in practice, in the environment of use, the electrodes are connected to circuit wiring, and current flows into or out of the capacitor through the electrodes.

Referring to fig. 1a, a first set of core rows 1a and a second set of core rows 1b arranged side by side and symmetrically are illustrated, wherein the first ends of the two sets of core rows are the side facing outwards perpendicular to the paper surface; with continued reference to fig. 1b, a first connecting bar 2a is arranged at a first end of the first set of core rows 1a, and a second connecting bar 2b is arranged at a first end of the second set of core rows 1b, where it is necessary to ensure that each capacitive core in the core rows is connected to a connecting bar; welding and fixing the connecting strips and the core bars; with continued reference to fig. 1c, a first busbar 3a is arranged on the first connecting strip 2 a; since the second core row 1b is disposed on the right side of the first core row 1a, in order to facilitate the first busbar 3a to be turned over onto the second core row 1b, it is preferable to weld the right end of the first connecting bar 2a to the right side of the first busbar 3a; with continued reference to fig. 1d, since the first busbar 3a is not fixed on the other sides than the right side, the first busbar 3a can be flipped clockwise and falls onto the second set of core rows 1 b; with continued reference to fig. 1e, the second connecting bar 2b is welded to the first busbar 3a, at which time the first busbar 3a is fixedly connected to the second set of core rows 1b by the second connecting bar 2 b; with continued reference to fig. 1f, the first busbar 3a, the second connecting bar 2b and the second set of core rows 1b are flipped counter-clockwise such that the second set of core rows 1b is stacked onto the first set of core rows 1 a; welding the first connecting strip 2a and the first busbar 3a again, so that the first group of core rows 1a are fixedly connected with the first busbar 3a through the first connecting strip 2 a; at this time, the first group of core rows 1a and the second group of core rows 1b are fixedly connected.

It is known that the first busbar 3a is a common busbar for the first and second groups of core rows 1a and 1b, and when an electrode is provided on the first busbar 3a, the electrode is a common electrode.

Referring to fig. 1 and 2 in combination, the first and second groups of core rows 1a and 1b are arranged at intervals in the column direction. In order to facilitate the first busbar 3a welded with the first connecting strip 2a to turn over to the second core row 1b, one side of the first busbar 3a, which is close to the second core row 1b, may be connected to the first connecting strip 2a along the column direction.

In one embodiment, the first set of core rows 1a includes at least two rows of capacitive cores, and any one row includes at least two capacitive cores; at least one first connecting strip 2a is arranged between two adjacent rows of capacitor cores.

In this embodiment, at least one first connecting bar 2a is disposed to extend in the column direction, and in this case, the first connecting bar 2a has one end close to the second group of core rows 1b, this end is referred to as a first connection portion of the first connecting bar 2a, and the other end of the first connecting bar 2a (i.e., the end of the first connecting bar 2a away from the second group of core rows 1 b) is referred to as a second connection portion of the first connecting bar 2 a. When the first busbar 3a is arranged, the first connection part of the first connecting strip 2a is connected with one side, close to the second group of core rows 1b, of the first busbar 3a along the row direction, so that connection between the first busbar 3a and the first connecting strip 2a can be realized, and the first busbar 3a can be turned over to the second group of core rows 1b conveniently. After the first busbar 3a and the second core array 1b are stacked on the first core array 1a in a secondary overturning manner, the second connection part of the first connection strip 2a is connected with one side, far away from the second core array 1b, of the first busbar 3a along the column direction, so that the first busbar 3a and the first core array 1a can be fixed.

After one welding, one end of at least one first connecting strip 2a is connected with one side of the first busbar 3a, so that the first busbar 3a can be turned over relative to the first group of core rows 1 a; after the secondary welding, the other end of the first connecting strip 2a is fixed, and at this time, two opposite sides of the first busbar 3a along the row direction are limited by the first connecting strip 2a, so that the first busbar 3a and the first group of core rows 1a can be ensured to be fixedly connected.

Optionally, in the first group of core rows 1a, a first connecting strip 2a is welded between any two adjacent capacitor cores.

Referring specifically to fig. 2B, in the illustrated embodiment, the first set of core rows 1a includes five rows of capacitor cores, and from top to bottom, the first three rows (i.e., the entire row of the portion a) each include five capacitor cores, and the second two rows (i.e., the side row of the portion B) each include two capacitor cores; a first connecting strip 2a is welded between any two adjacent capacitor cores, and four first connecting strips 2a are arranged on the first group of core rows 1 a. Since the number of the capacitor cores in the second two rows is small, the lengths of the capacitor cores in the second two rows are small along the column direction, and the lengths of the first connecting bars 2a for connecting the second two rows are also small. In order to avoid influencing the overturning of the first busbar 3a, in one embodiment, only the right ends of the first two first connecting strips 2a are connected with the right side of the first busbar 3a during one welding; during secondary welding, the left ends of the four first connecting strips 2a are connected with the left side of the first busbar 3 a.

In the embodiment shown in fig. 2b and 2c, after one welding, the right ends of the first two first connecting strips 2a are connected to the right side of the first busbar 3 a. In other embodiments, only the right end of one first connecting bar 2a and the first busbar 3a may be welded during the primary welding, and the left end of the first connecting bar 2a and the ends of the other first connecting bars 2a may be welded during the secondary welding.

In the embodiment shown in fig. 2b and 2c, after the second welding, the left end of the two first connecting strips 2a is connected to the left side of the first busbar 3a only, while the right end is not connected to the first busbar 3a. In other embodiments, during the secondary welding, the right ends of the two first connecting strips 2a and the right side of the first busbar 3a may be connected.

The present application is not limited to the number of the first connection bars 2a connected to the first busbar 3a after one welding, as long as the first busbar 3a can be connected to the first group of core rows 1a and the first busbar 3a can be turned over.

In summary, by performing one-time welding on the first connecting strip 2a, the first busbar 3a can be turned over to the second core row 1b conveniently, and the first busbar 3a can be turned over to the first core row 1a along with the second core row 1b conveniently; by performing the secondary welding of the first connecting bar 2a, the first busbar 3a and the first group of core rows 1a can be fixed, and the first group of core rows 1a and the second group of core rows 1b can be further fixed.

In order to avoid that the arrangement of the second connecting strip 2b affects the connection of the first connecting strip 2a to the first busbar 3a, in one embodiment, the second set of core rows 1b comprises at least two rows of capacitive cores, and any row comprises at least two capacitive cores; at least one second connecting strip 2b is arranged between two adjacent rows of capacitor cores.

In this embodiment, at least one second connecting strip 2b is arranged extending in the row direction, in which case the second connecting strip 2b is perpendicular to the first connecting strip 2a arranged extending in the column direction. When the right end of the first connecting strip 2a is connected with the right side of the first busbar 3a and the left end is connected with the left side of the first busbar 3a, the upper end of the second connecting strip 2b is connected with the upper side of the first busbar 3a and the lower end is connected with the lower side of the first busbar 3 a; the connection part of the second connecting strip 2b and the first busbar 3a and the connection part of the first connecting strip 2a and the first busbar 3a are not interfered with each other; therefore, the overturning of the first busbar 3a does not affect the connection between the second connecting strip 2b and the first busbar 3a, and the second connecting strip 2b does not contact with the first connecting strip 2a, so that the structural stability of the capacitor can be ensured, and the use safety of the capacitor is facilitated.

Optionally, a second connecting strip 2b is welded between any two adjacent capacitor cores in the second group of core rows 1 b.

Referring specifically to fig. 2B and 2d, in the illustrated embodiment, the second set of core rows 1B includes five rows of capacitor cores, and from top to bottom, the first three rows (i.e., the entire row of portions a) each include five capacitor cores, and the second two rows (i.e., the side row of portions B) each include two capacitor cores; because the number of the capacitor cores in the second two rows is small and the arrangement positions are staggered with the capacitor cores in the first three rows, a second connecting strip 2b is arranged between any two adjacent rows of capacitor cores in the first three rows, and a second connecting strip 2b is also arranged between two adjacent rows of capacitor cores in the second two rows of capacitor cores; at this time, five second connection bars 2b are provided in the second group of core rows 1b. After the first busbar 3a is turned over to the second group of core rows 1b, the upper ends of the second connecting strips 2b in the first three rows of capacitor cores are connected with the upper side of the first busbar 3a, and the lower ends of the second connecting strips 2b in the second two rows of capacitor cores are connected with the lower side of the first busbar 3a, so that the first busbar 3a and the second group of core rows 1b can be fixed.

With continued reference to FIG. 2d, in the illustrated embodiment, there is an open space between the underside of the front three rows of capacitive cores and the left of the rear two rows of capacitive cores of the second set of rows 1 b; the shape of the first busbar 3a is similar to the configuration of the core row, so that the first busbar 3a is concave near a corner of the open space; the lower ends of the second connecting bars 2b partially arranged on the front three rows of capacitor cores can be connected with the concave corners of the first busbar 3a, so that the connection between the first busbar 3a and the second group of core rows 1b is further reinforced.

In one embodiment, the first and second sets of core rows 1a and 1b each include: a whole row of parts A, wherein the whole row of parts A comprises N rows and M columns of capacitor cores; a side row portion B including n rows of m columns of capacitor cores; wherein, N and M are natural numbers not less than 2, N is a natural number less than N, and M is a natural number less than M; along the row direction, the entire row portion a is provided on the side of the side row portion B.

In one embodiment, the core row includes 3 rows and 2 columns of the entire row of six capacitive cores a and 2 rows and 1 column of the side row of two capacitive cores B.

In another embodiment, the core row includes 5 rows and 5 columns of an entire row of twenty-five capacitive cores a and 4 rows and 4 columns of side row of sixteen capacitive cores B.

In yet another embodiment, the core row includes 4 rows and 6 columns of full row portions A of twenty-four capacitive cores and 3 rows and 2 columns of side row portions B of six capacitive cores.

The present application does not limit the number and arrangement of the capacitor cores of the whole row of the sections a and the side row of the sections B in the core row.

Since the side row portion B is provided on one side of the entire row portion a in the row direction, and the number of columns of the side row portion B is smaller than that of the entire row portion a, the entire row portion a extends the length of the core row in the row direction, and the side row portion B extends the length of the core row in the row direction for the entire core row. Thus, there is an open space C between the "last row" of the full row of sections A (i.e., the row of capacitive cores closest to the side row of sections B in the full row of sections A) and the "last column" of the side row of sections B (i.e., the column of capacitive cores furthest from the head or end of the row of sections A in the side row of sections B).

For example, referring to the first set of core rows 1a in fig. 2a, the entire row portion a thereof includes 3 rows 5 columns, and a total of 15 capacitor cores, and the side row portion B thereof includes 2 rows 2 columns, and a total of 4 capacitor cores. The "last row" of the entire row of sections a (i.e., the third row of the entire row of sections a from top to bottom), and the "last column" of the side row of sections 10 (i.e., the second column of the side row of sections B from left to right) are bordered by an open space C between the side row of sections a and the entire row of sections B.

When the electrodes are arranged on the busbar, part of the electrodes can be arranged in the open space C, so that the space can be effectively utilized, and the electrodes can be relatively and intensively arranged so as to be convenient for subsequent treatment or use. Since the electrode is accommodated in the open space C, the electrode can be prevented from being exposed to the outside and damaged.

Alternatively, the entire row of the sections a is offset from the side row of the sections B.

With continued reference to fig. 2a, in the illustrated embodiment, the first column of capacitive cores of side row portion B is located between the first column and the second column of capacitive cores of full row portion a, while the second column of capacitive cores of side row portion B is located between the second column and the third column of capacitive cores of full row portion a. Therefore, the space can be better utilized, and the power connection requirement can be met.

In order to facilitate connection of the busbar and the connecting strips, optionally, at least one end of any connecting strip is folded onto the busbar and fixedly connected with the busbar.

In one embodiment, a plurality of capacitor cores are arranged in a core row; arranging a connecting strip on the upper surface of the core row; when the connecting strip is arranged, at least one end of the connecting strip protrudes out of the core row; fixing the connecting strips to the core row by welding, wherein the ends of the connecting strips protruding outwards do not need to be fixed; a busbar is arranged on the connecting strip; after the busbar is placed in place, the end parts of the protruding connecting strips which are not fixedly connected with the core row are turned over to the busbar; the busbar and the connecting strip folded onto the busbar are fixed through welding; thus, the busbar is fixedly connected with the core row through the connecting strip.

The end part of the connecting strip can be turned over once to contact with the side wall of the busbar, or turned over twice to contact with the side wall of the busbar and the other side surface of the busbar away from the core row.

It is easy to understand that, in order to realize the folded connection, the end of the connecting strip needs to be kept in a free state (not fixed with the capacitor core) after the capacitor core is connected; after the busbar is arranged on the connecting strip, the end part of the connecting strip protrudes out of the busbar; therefore, the end parts of the connecting strips can be folded and attached to the busbar, and the busbar and the end parts of the connecting strips are fixed through welding.

Through turning over the connecting strip, can reveal the connecting portion of connecting strip and female row, both make things convenient for operations such as welding, make things convenient for operating personnel to confirm the welding condition again, can also make things convenient for the upset of the female row 3a of post-welding once.

In one embodiment, referring to the first set of core rows 1a in fig. 2B to 2c, the side row portion B is disposed below the entire row portion a and is disposed near the left side; thus, there is an open space C between the lower side of the entire row of sections a and the right side of the side row of sections B. Since the shape of the first busbar 3a is similar to the configuration of the core row, the first busbar 3a is concave near a corner of the open space C; at this time, the right side of the first busbar 3a is stepped, and the right side of the first busbar 3a near the entire row portion a is protruded. It will be readily understood that if the right ends of the four first connecting strips 2a are connected to the right side of the first busbar 3a, the first connecting strips 2a between the entire row of parts a will be connected to the protruding right side, and the first connecting strips 2a on the side row of parts B will be connected to the right side of the recess, so that the first busbar 3a cannot be turned over.

Therefore, when the first connecting bar 2a in fig. 2 is welded once, only the first connecting bar 2a provided between the entire row of the portions a can be welded; specifically, the right end of at least one first connecting strip 2a arranged between the whole row of parts a is folded over the right side surface or even the upper surface of the first busbar 3a, and then the first connecting strip 2a is welded to be fixedly connected with the first busbar 3 a.

Alternatively, both ends of the first connecting strip 2a between any two adjacent capacitor cores protrude from the first group of core rows 1a. At this time, after the first busbar 3a and the second core row 1b are stacked on the first core row 1a by the secondary overturning, the ends of the other first connecting strips 2a are turned over, and then the turned-over portions are welded to the first busbar 3 a.

Alternatively, only one end of the first connecting bar 2a connected to the side row portion B protrudes from the first group core row 1a; both ends of the first connecting strip 2a which are not connected to the side row portion B protrude from the first group core row 1a.

Referring to fig. 2B, at this time, the first connecting strip 2a connecting the last row of capacitor cores in the whole row portion a and the first row of capacitor cores in the side row portion B, and the first connecting strip 2a connecting the adjacent two rows of capacitor cores in the side row portion B protrude from the first group of core rows 1a only on the side far from the turning direction of the first busbar 3a, and the side close to the turning direction of the first busbar 3a is attached to the capacitor cores and is not used for turning; both ends of the first connecting strip 2a connecting the adjacent two rows of capacitor cores in the whole row part A protrude from the first group of core rows 1a. During one-time welding, one side, close to the second group of core rows 1b, of a first connecting strip 2a between two adjacent rows of capacitor cores in the whole row part A is welded and connected with a first busbar 3 a; in the secondary welding process, one side of all the first connecting strips 2a, which is far away from the second group of core rows 1b, is welded with the first busbar 3 a.

In a specific embodiment, the whole row part A comprises three rows and five columns of capacitor cores, the side row part B comprises two rows and two columns of capacitor cores, and four first connecting strips 2a are welded at the first ends of the first group of core rows 1 a; when the first connecting strip 2a and the first busbar 3a are welded, one end, far away from the side row part B, of the first connecting strip 2a for connecting two adjacent rows of capacitor cores in the whole row part A is welded to the first busbar 3 a; after the first busbar 3a and the second connecting strip 2b are welded, the second group of core rows 1b and the first busbar 3a are turned over to the first group of core rows 1a, and then the ends to be welded of the four first connecting strips 2a are welded to the first busbar 3 a.

Specifically, referring to fig. 2a and 2b, the first set of core rows 1a is provided on the left side of the second set of core rows 1 b; in the first group of core rows 1a, the whole row part A is arranged above the side row part B, and the side row part B is arranged on the left; two first connecting strips 2a are arranged in the whole row part A, and two ends of the two first connecting strips 2a protrude out of the first group of core rows 1a; a first connecting strip 2a is respectively arranged between the side row part B and the whole row part a and in the side row part B, and only the left ends of the two first connecting strips 2a protrude from the first group of core rows 1a. In the second group of core rows 1B, the whole row part A is provided with four second connecting strips 2B, two ends of the two second connecting strips 2B which are not adjacent to the side row part B protrude out of the second group of core rows 1B, and the upper ends of the two second connecting strips 2B which are adjacent to the side row part B protrude out of the second group of core rows 1B, and the lower ends of the two second connecting strips are attached to the capacitor cores; the side row portion B is provided with a second connecting bar 2B, and the lower ends of the second connecting bars 2B in the side row portion B protrude from the second group core row 1B.

With continued reference to fig. 2c, a first busbar 3a is arranged on the first group of core rows 1a, so that the right ends of two first connecting strips 2a in the whole row part a are turned over to the upper surface of the first busbar 3a, and the two first connecting strips 2a are welded to the upper part of the first busbar 3 a; the first busbar 3a is turned clockwise so that the first busbar 3a falls onto the second set of core rows 1 b; with continued reference to fig. 2d, the protruding end of the second connecting strip 2b is folded over onto the upper surface of the first busbar 3a and welded and fixed; turning the first busbar 3a, the second connecting bar 2b and the second set of core rows 1b counter-clockwise, see fig. 2e, so that the second set of core rows 1b is stacked onto the first set of core rows 1 a; finally, the left ends of the four first connecting strips 2a are folded onto the left side surface of the first busbar 3 a.

In summary, before welding the first busbar 3a and the first connecting strip 2a, the first busbar 3a is placed on the first connecting strip 2a, and at least one end of the first connecting strip 2a protrudes out of the first busbar 3a; during welding, the first connecting strip 2a protruding from the first busbar 3a is folded over the first busbar 3a, and the folded portion is welded.

Similarly, before the first busbar 3a and the second connecting strip 2b are welded, the first busbar 3a is turned over to the second connecting strip 2b, and at least one end of the second connecting strip 2b protrudes out of the first busbar 3a; during welding, the second connecting strip 2b protruding from the first busbar 3a is folded over the first busbar 3a, and the folded portion is welded.

Since the core row has two electrode terminals, in one embodiment, one busbar is disposed at each electrode terminal.

In one embodiment, after the connection between the first ends of the two sets of core rows and the first busbar 3a is completed, the second busbar 3b and the third busbar 3c are installed on the second ends of the two sets of core rows.

Similar to the installation of the first busbar 3a, before the second busbar 3b or the third busbar 3c is installed, the third connecting strip 2c or the fourth connecting strip 2d is welded at the second end of the busbar, after the capacitor core is connected by using the connecting strip, the second busbar 3b or the third busbar 3c is placed on the connecting strip, and the connecting strip and the busbar are fixed by welding, so that the connection between the busbar and the core row is realized.

In another embodiment, before welding the first busbar 3a and the first connecting strip 2a, welding a third connecting strip 2c at the second end of the first group of core rows 1 a; and/or welding a fourth connecting bar 2d at the second end of the second set of core rows 1b before welding the first busbar 3a and the second connecting bar 2 b.

Briefly, before the first connecting bar 2a is welded, the first connecting bar 2a is welded to the first end of the first group of core bars 1a, and the third connecting bar 2c is welded to the second end of the first group of core bars 1 a. Similarly, before welding the second connecting bar 2b and the first busbar 3a, the second connecting bar 2b is welded to the first end of the second core row 1b, and the fourth connecting bar 2d is welded to the second end of the second core row 1 b.

It is easily conceivable that the first connecting strip 2a may be welded to the first core row 1a before the first end thereof, that the third connecting strip 2c may be welded to the second end thereof, and that the first connecting strip 2a and the third connecting strip 2c may be welded to the first end and the second end thereof at the same time. Similarly, for the second core array 1b, the second connecting bar 2b may be welded before the first end, the fourth connecting bar 2d may be welded before the second end, and the second connecting bar 2b and the fourth connecting bar 2d may be welded correspondingly on the first end and the second end.

Wherein the third connecting strip 2c and the fourth connecting strip 2d are arranged in a similar way to the first connecting strip 2a and the second connecting strip 2b. Alternatively, any one of the connection bars (the first connection bar 2a, the second connection bar 2b, the third connection bar 2c, or the fourth connection bar 2 d) is provided between the adjacent two rows or columns of the capacitor cores 11.

Further, welding a second busbar 3b on the third connecting strip 2 c; and/or welding the third busbar 3c on the fourth connecting strip 2 d.

It should be noted that the second busbar 3b and the third busbar 3c may be installed after the first busbar 3a is welded to the first ends of the two core rows, may be installed before the first busbar 3a is installed, or may be installed simultaneously with the first busbar 3a. The application is not limited by the sequence of the installation of the three busbar.

In one embodiment, after the first core array 1a is arranged, the first connecting strip 2a and the third connecting strip 2c are correspondingly arranged on the first end and the second end of the first core array 1 a; subsequently, a second busbar 3b is arranged on the third connecting strip 2c; after the second busbar 3b is fixed by welding, the first busbar 3a is set on the first connecting strip 2a, and the first connecting strip 2a and the first busbar 3a are welded once. After the second group of core rows 1b are arranged, a second connecting strip 2b and a fourth connecting strip 2d are correspondingly arranged on the first end and the second end of the second group of core rows 1 b; subsequently, a third busbar 3c is provided on the fourth connecting strip 2 d. After the third busbar 3c is fixed by welding, the first busbar 3a is turned over to the second connecting bar 2b, and the second connecting bar 2b and the first busbar 3a are welded. After the second connecting strip 2b is fixed with the first busbar 3a, the second group of core rows 1b are turned over and stacked on the first group of core rows 1a, and the first connecting strip 2a and the first busbar 3a are welded for the second time, so that the first busbar 3a is fixedly connected with the first group of core rows 1 a.

Optionally, at least one end of any connecting strip is folded onto the busbar (the first busbar 3a, the second busbar 3b or the third busbar 3 c) and is fixedly connected with the busbar.

Optionally, at least two opposite sides of the busbar are folded with connecting strips. For example, referring to fig. 1e, when the second connecting bar 2b is connected to the first busbar 3a, the upper end of the second connecting bar 2b is folded to the upper side of the first busbar 3a, and the lower end of the second connecting bar 2b is folded to the lower side of the first busbar 3a, so that both the upper and lower sides of the first busbar 3a are connected and fixed by the second connecting bar 2b, so that the first busbar 3a and the second connecting bar 2b have a stable connection state.

Further, the first group of core rows 1a and the second group of core rows 1b, which are welded with the first busbar 3a, the second busbar 3b and the third busbar 3c, are placed in the housing 30; an insulator is poured into the housing 30.

The core row, the connecting strip and the busbar are placed in the shell 30, and the shell 30 can protect the structures from being exposed and damaged and can also prevent operators or external structures from touching by mistake.

After the core row, the connection bars, and the bus bars are placed in the housing 30, an insulator (e.g., epoxy) may be injected into the housing 30. So, on the one hand can improve the safety in utilization of condenser, avoid appearing the condition such as electric leakage, electric shock, short circuit, on the other hand, the insulator solidifies the back, can fix core row, connecting strip and female row in shell 30, is favorable to the structural stability of whole condenser.

To facilitate insulator pouring, in one embodiment, one side of the housing 30 is open and insulator can be poured into the housing 30 through the opening.

Optionally, to facilitate placement of the core row and other structures, the housing 30 provided by the present application is configured as a split structure. Specifically, the housing 30 is assembled from a case 31 and a cover 32, and the case 31 and the cover 32 are detachably connected. When the core row and other structures need to be assembled in the housing 30 or the connected core row and other structures need to be put into the housing 30, the shell 31 and the cover 32 are separated so as to be convenient for operation; after the core array and the like are arranged, the shell 31 and the cover 32 are assembled, so that the shell 30 can fix and protect the capacitor core group 10.

The foregoing examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims

1. A method of assembling a capacitor, comprising the steps of:

arranging a plurality of capacitive cores into a first set of core rows (1 a);

Welding a first connecting strip (2 a) at a first end of the first group of core rows (1 a);

arranging a plurality of capacitive cores into a second set of core rows (1 b);

welding a second connecting strip (2 b) at a first end of the second set of core rows (1 b);

Welding the first connection strip (2 a) with a first busbar (3 a) such that the first busbar (3 a) can rotate relative to the first set of core rows (1 a);

turning over the first busbar (3 a) onto the second set of core rows (1 b), welding the first busbar (3 a) and the second connecting strip (2 b), thereby fixing the first busbar (3 a) and the second set of core rows (1 b);

the second group of core bars (1 b) and the first busbar (3 a) are turned over onto the first group of core bars (1 a), and the first connecting strip (2 a) and the first busbar (3 a) are welded again, so that the first busbar (3 a) and the first group of core bars (1 a) are fixed.

2. Method of assembling a capacitor according to claim 1, characterized in that said first set of core rows (1 a) comprises at least two rows of said capacitive cores, and that any row comprises at least two of said capacitive cores;

one first connecting strip (2 a) is welded between any two rows of adjacent capacitor cores.

3. Method of assembling a capacitor according to claim 2, characterized in that said second set of core rows (1 b) comprises at least two rows of said capacitive cores, and that any row comprises at least two of said capacitive cores;

And one second connecting strip (2 b) is welded between any two adjacent capacitor cores.

4. A method of assembling a capacitor according to claim 2 or 3, wherein the first set of core rows (1 a) and the second set of core rows (1 b) each comprise:

a full row of sections (a), said full row of sections (a) comprising N rows and M columns of said capacitive cores;

a side row portion (B), said side row portion (B) comprising n rows and m columns of said capacitive cores;

Wherein, N and M are natural numbers not less than 2, N is a natural number less than N, and M is a natural number less than M;

The whole row of parts (A) is arranged on one side of the side row part (B) along the row direction.

5. The method of assembling a capacitor according to claim 4, wherein only one end of the first connecting strip (2 a) connected to the side row portion (B) protrudes from the first group of core rows (1 a);

Both ends of the first connecting strip (2 a) which are not connected with the side row part (B) protrude from the first group core row (1 a).

6. The method of assembling a capacitor according to claim 5, wherein said whole row of parts (a) comprises three rows and five columns of said capacitor cores, said side row of parts (B) comprises two rows and two columns of said capacitor cores, and said first ends of said first group of rows (1 a) are welded with four of said first connecting strips (2 a);

When the first connecting strip (2 a) and the first busbar (3 a) are welded, one end, far away from the side row part (B), of the first connecting strip (2 a) connecting two adjacent rows of capacitor cores in the whole row part (A) is welded to the first busbar (3 a);

After the first busbar (3 a) and the second connecting strip (2 b) are welded, the second group of core rows (1 b) and the first busbar (3 a) are turned over to the first group of core rows (1 a), and then the ends to be welded of the four first connecting strips (2 a) are welded to the first busbar (3 a).

7. The method of assembling a capacitor according to claim 1 or 5, wherein the first busbar (3 a) is placed on the first connecting strip (2 a) before the first busbar (3 a) and the first connecting strip (2 a) are welded, at least one end of the first connecting strip (2 a) protruding from the first busbar (3 a); before welding, the first connecting strip (2 a) protruding from the first busbar (3 a) is folded onto the first busbar (3 a), and the folded part is welded;

and/or the number of the groups of groups,

Before welding the first busbar (3 a) and the second connecting strip (2 b), the first busbar (3 a) is turned over onto the second connecting strip (2 b), and at least one end of the second connecting strip (2 b) protrudes out of the first busbar (3 a); before welding, the second connecting strip (2 b) protruding from the first busbar (3 a) is folded onto the first busbar (3 a), and the folded part is welded.

8. Method of assembling a capacitor according to claim 1, characterized in that before welding the first busbar (3 a) with the first connecting strip (2 a), a third connecting strip (2 c) is welded at the second end of the first set of core rows (1 a);

and/or welding a fourth connecting strip (2 d) at the second end of the second group of core rows (1 b) before welding the first busbar (3 a) and the second connecting strip (2 b).

9. Method of assembling a capacitor according to claim 8, characterized in that a second busbar (3 b) is welded on the third connecting strip (2 c);

And/or welding a third busbar (3 c) on the fourth connecting strip (2 d).

10. The method of assembling a capacitor according to claim 9, wherein the first (1 a) and second (1 b) sets of core rows welded to the first (3 a), second (3 b) and third (3 c) parent rows are placed in a housing (30);

An insulator is poured into the housing (30).