End sealing positioning device for disc capacitor

Abstract

The utility model relates to a kind of end sealing positioning device of disc capacitor, including positioning base plate (10), and with the positioning of the coupling of plate (20) positioning base plate (10);The positioning base plate (10) is equipped with m The positioning column (100) that can be inserted into the central hole of disc capacitor, wherein, m≥1;The plate (20) is equipped with with the positioning column (100) one-to-one corresponding accommodation through-hole (200);When the plate (20) is coupled with the positioning base plate (10), the positioning base plate (10) and the accommodation through-hole (200) form the open accommodation cavity that can accommodate disc capacitor (15) by enclosing, every positioning column (100) is located in corresponding accommodation cavity, and the height of the positioning column (100) does not exceed the depth of the accommodation cavity.The end sealing positioning device of the utility model can realize quick positioning to batch disc capacitor, and it is beneficial to improve production efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to capacitor preparation technical field, in particular to a kind of end sealing positioning device of disc capacitor. BACKGROUND

[0002] Through-hole capacitor is a kind of three-terminal capacitor, compared with ordinary three-terminal capacitor, it is directly installed on metal panel, so its ground inductance is smaller, almost no lead inductance influence, in addition, its input and output end is isolated by metal plate, eliminates high-frequency coupling, which makes through-hole capacitor have the filtering effect of ideal capacitor, so it is widely used.

[0003] The internal capacitor of existing through-hole capacitor usually adopts disc capacitor as filter capacitor, as shown in Figure 1 The through-hole capacitor 1 includes cylindrical shell 11 and lead pin 13 penetrating shell 11, and disc capacitor 15 is arranged in shell 11. As shown in Figure 2 Disc capacitor 15 is in the form of a ring, and its internal structure is similar to MLCC. Ceramic dielectric material 1500 and metal inner electrode 1502 are usually interleaved and stacked, and then a through-hole 155 is formed in the center of the stacked body after processing, so that the lead pin 13 can pass through. The outer end face 153 and the inner end face 154 of the stacked body are provided with metal layers connected to the inner electrode 1502, which are the outer electrode and the inner electrode respectively.

[0004] In the preparation of disc capacitor 15, the outer electrode and the inner electrode are usually formed by end sealing process. Before end sealing, disc capacitor 15 needs to be positioned by clamp. Based on the ring structure of disc capacitor 15, the existing clamp for fixing disc capacitor 15 is usually provided with a positioning column, and the positioning column is inserted into the center hole 155 of disc capacitor 15 to achieve fixation. However, the positioning column on the clamp usually protrudes from the base surface on which the disc capacitor 15 is carried, so when positioning a batch of disc capacitors 15, the disc capacitors 15 need to be picked up one by one by hand, and then the center hole 155 is aligned with the positioning column and the positioning column is inserted into the center hole 155 to complete the positioning, which is extremely low in production efficiency. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims at overcoming the defects or deficiencies of prior art, and provides an end sealing positioning device for disc capacitor, which can quickly position a batch of disc capacitors, and is beneficial to improve production efficiency.

[0006] The application discloses an end sealing positioning device of a disc capacitor, which comprises a positioning base plate and a containing plate coupled with the positioning base plate; the positioning base plate is provided with m positioning columns which can extend into a central hole of the disc capacitor, wherein m is greater than or equal to 1; the containing plate is provided with containing through holes corresponding to the positioning columns; when the containing plate is coupled with the positioning base plate, the positioning base plate and the containing through holes form open containing cavities which can contain the disc capacitor, each positioning column is located in a corresponding containing cavity, and the height of the positioning column is not higher than the depth of the containing cavity.

[0007] Compared with the prior art, the end sealing positioning device of the disc capacitor disclosed by the application can raise the height of the base surface near the positioning column by the containing plate coupled with the positioning base plate, form a containing cavity which can contain the disc capacitor, make the positioning column be located in the containing cavity, and make the height of the positioning column not be higher than the depth of the containing cavity; the disc capacitor can be simultaneously pushed to move on the raised base surface in the horizontal direction, so that the disc capacitor is automatically dropped into the containing cavity, and the positioning column and the central hole of the disc capacitor are inserted and fixed during the dropping process; the disc capacitor does not need to be picked up one by one, aligned with the positioning column and then inserted and fixed, and the batch disc capacitors can be quickly positioned.

[0008] In an embodiment, the height of the positioning column is 0.5-0.8 times the depth of the containing cavity.

[0009] In an embodiment, the outer peripheral side surface of the positioning column is adapted to the shape of the inner side wall of the central hole of the disc capacitor.

[0010] In an embodiment, the positioning column is a cylindrical column, and the diameter of the cylindrical column is 0.8-0.9 times the hole diameter of the central hole of the disc capacitor.

[0011] In an embodiment, the hole diameter of the containing through hole is 1.2-1.5 times the outer diameter of the disc capacitor.

[0012] In an embodiment, the depth of the containing cavity is less than or equal to the thickness of the disc capacitor.

[0013] In an embodiment, the depth of the containing cavity is 0.5-0.8 times the thickness of the disc capacitor.

[0014] In an embodiment, when m is greater than or equal to 2, the positioning columns are arranged in an array, and the containing through holes are arranged in the same array as the positioning columns.

[0015] In an embodiment, the positioning base plate is provided with a rows of positioning columns, wherein a is greater than or equal to 2; the positioning columns in the ath row are arranged in a staggered manner with the positioning columns in the a-1th row.

[0016] In one embodiment, one of the positioning base plate and the accommodating plate is provided with a limiting structure, when the positioning base plate is coupled with the accommodating plate, the limiting structure can engage the other one of the positioning base plate and the accommodating plate, so that each positioning column is aligned with the center position of the accommodating through hole.

[0017] For better understanding and implementation, the utility model is explained in detail below in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structure schematic view of the existing through-hole capacitor;

[0019] Figure 2 It is a structure schematic view of the existing disc capacitor for through-hole capacitor;

[0020] Figure 3 It is a top view of the positioning base plate in one embodiment of the end sealing positioning device of the disc capacitor of the utility model;

[0021] Figure 4 It is a top view of the accommodating plate in one embodiment of the end sealing positioning device of the disc capacitor of the utility model;

[0022] Figure 5 It is a top view of one embodiment of the end sealing positioning device of the disc capacitor of the utility model;

[0023] Figure 6 It is a sectional view of the end sealing positioning device of the disc capacitor of the utility model;

[0024] Figure 7 It is a sectional view of the end sealing positioning device of the disc capacitor of the utility model loaded with the disc capacitor.

[0025] REFERENCE SIGNS:

[0026] 1, through-hole capacitor; 11, shell of through-hole capacitor; 13, lead pin of through-hole capacitor; 15, disc capacitor; 1500, ceramic dielectric material; 1502, inner electrode; 151, upper surface of disc capacitor; 153, outer end face; 154, inner end face; 155, central inner hole;

[0027] 10, positioning base plate; 100, positioning column; 102, limiting structure; 1021, first limiting piece; 1022, second limiting piece;

[0028] 20, accommodating plate; 200, accommodating through hole;

[0029] D1, first direction; D2, second direction. DETAILED DESCRIPTION

[0030] The existing positioning fixture for positioning disc capacitors usually has positioning columns which can be inserted into the center inner hole of the disc capacitor, and the disc capacitors are fixed by the positioning columns. However, this process needs to manually place the disc capacitors one by one on the positioning columns. This is because before positioning, a batch of disc capacitors to be positioned are usually scattered on the base surface of the fixture, the positioning columns are protruded from the base surface of the fixture on which the disc capacitors are placed, and the center inner hole of the disc capacitor is circular in cross section. In order to make the positioning column penetrate into the center inner hole, the disc capacitor needs to be picked up to a height at which the center inner hole is not lower than the height of the positioning column from the base surface of the fixture, and then the disc capacitor is moved to above the positioning column in the horizontal direction, and is placed from top to bottom, so that the disc capacitor is sleeved outside the positioning column to realize fixation. This process is complicated and time-consuming, and leads to low production efficiency.

[0031] Therefore, the end sealing positioning device of the disc capacitor of the utility model raises the height of the base surface near the positioning column to form a containing cavity which can contain the disc capacitor, and makes the positioning column be located in the containing cavity, and the depth of the containing cavity is greater than or equal to the height of the positioning column. In this way, multiple disc capacitors can be simultaneously pushed to move in the horizontal direction on the raised base surface until the center inner hole of each disc capacitor is aligned with the positioning column in the containing cavity. At this time, the disc capacitor automatically falls into the containing cavity, the center inner hole is inserted into the positioning column, and the fixation of the disc capacitor is realized without the need of picking up the disc capacitors one by one, inserting and fixing the disc capacitors after aligning the disc capacitors with the positioning column.

[0032] The scheme of the utility model will be described in detail below in combination with the drawings.

[0033] Figures 3-7 An embodiment of the end sealing positioning device of the disc capacitor of the utility model is shown. The specific structure and working principle of the end sealing positioning device of the disc capacitor 15 shown in the embodiment will be described below. As shown in the figure, the end sealing positioning device of the disc capacitor of the utility model comprises a positioning base plate 10. As shown in the figure, Figure 2 Figures 3-7 Figure 3 ​​As shown, the positioning base plate 10 is rectangular, and a plurality of positioning columns 100 are arranged on the base surface of the positioning base plate 10. In this embodiment, there are 7 rows of positioning columns 100, and each row has at least 11 positioning columns 100. To save space, the positioning columns 100 in the even rows are arranged staggered with the positioning columns 100 in the odd rows. The outer circumferential side of the positioning column 100 is shaped to fit the central inner hole 155 of the disc capacitor 15, so that the positioning column 100 can extend into the central inner hole 155. In this embodiment, the positioning column 100 is circular, and the outer diameter of the positioning column 100 is less than or equal to the diameter of the central inner hole 155 of the disc capacitor 15. Through the insertion of the positioning column 100 into the central inner hole 155 of the disc capacitor 15, the disc capacitor 15 is positioned. Of course, the positioning column 100 can also be a conical body, a rectangular body, or a polygonal body, as long as it fits the central inner hole 155.

[0034] To raise the height of the base surface near the positioning column 100 and achieve quick positioning of the disc capacitor 15, the above-mentioned end-capping positioning device further comprises a containing plate 20 that can be coupled with the positioning base plate 10. As shown, Figure 4 The containing plate 20 is also rectangular as the positioning base plate 10, and a plurality of containing through holes 200 are arranged on the containing plate 20. The containing through holes 200 are arranged in the same array as the positioning columns 100 and correspond to the positioning columns 100 one by one. The containing through holes 200 are circular, and the outer diameter of the containing through holes 200 is greater than or equal to the outer diameter of the disc capacitor 15 to contain the disc capacitor 15.

[0035] As shown, Figure 5 When the containing plate 20 is coupled with the positioning base plate 10, the containing through holes 200 and the positioning base plate 10 form a plurality of containing cavities, and the positioning column 100 is located at the center of the corresponding containing through hole 200. The height of the positioning column 100 in the containing cavity does not exceed the depth of the containing through hole 200.

[0036] Before use, the containing plate 20 is coupled with the base surface of the positioning base plate 10. At this time, a plurality of disc capacitors 15 to be positioned can be laid on the base surface (i.e., the top surface) of the containing plate 20. During positioning, a plurality of disc capacitors 15 can be pushed simultaneously to move in the horizontal direction. Since the height of the positioning column 100 does not exceed the depth of the containing through hole 200, the positioning column 100 does not hinder the translation of the disc capacitor 15. When a disc capacitor 15 is moved to align with a positioning column 100, the disc capacitor 15 falls into the corresponding containing cavity, and the positioning column 100 is inserted into the central inner hole 155 of the disc capacitor 15 to complete the positioning.

[0037] By covering the base surface of the positioning base plate 10 with the accommodating plate 20 having the accommodating through hole 200, the height of the base surface near the positioning column 100 is raised to exceed the height of the positioning column 100, so that the plurality of disc capacitors 15 can move horizontally on the base surface of the accommodating plate 20, and the positioning column 100 does not block the translation of the disc capacitor 15. When each disc capacitor 15 approaches a certain positioning column 100, it falls into the corresponding accommodating cavity, and positioning is achieved. Compared with the traditional manual method of picking up disc capacitors one by one and then fixing them on the positioning column 100, the positioning efficiency can be greatly improved.

[0038] Preferably, the height of the positioning column 100 is 0.5-0.8 times the depth of the accommodating cavity. If the height of the positioning column 100 is less than 0.5 times the depth of the accommodating cavity, the length of the positioning column 100 extending into the disc capacitor 15 is short, and the disc capacitor 15 in the accommodating cavity is easily affected by external force and displaced, resulting in a decrease in positioning accuracy. The outer surface of the disc capacitor 15 (including its upper surface 151 and lower surface) is not completely smooth and flat, and if the positioning column 100 is greater than 0.8 times the depth of the accommodating cavity and too close to the base surface of the accommodating plate 20, it is easy to contact the disc capacitor 15 during the translation of the disc capacitor 15, thereby damaging the disc capacitor 15.

[0039] Preferably, the diameter of the cylindrical positioning column 100 is 0.8-0.9 times the hole diameter of the center hole 155 of the disc capacitor 15. If the diameter of the positioning column 100 is less than 0.8 times the hole diameter of the center hole 155, there is a large gap between the positioning column 100 and the center hole 155, which affects the positioning accuracy; if the diameter of the positioning column 100 is greater than 0.9 times the hole diameter of the center hole 155, the positioning column 100 and the center hole 155 are in contact and generate friction, which affects the positioning efficiency.

[0040] Preferably, the diameter of the accommodating through hole 200 is 1.2-1.5 times the outer diameter of the disc capacitor 15. If the diameter of the accommodating through hole 200 is less than 1.2 times the outer diameter of the disc capacitor 15, the disc capacitor 15 is not easy to fit into the accommodating cavity of the end positioning device; if the diameter of the accommodating through hole 200 is greater than 1.5 times the outer diameter of the disc capacitor 15, the disc capacitor 15 is easy to be stuck between the positioning column 100 and the side wall of the accommodating cavity, and then needs to be picked up and fixed on the positioning column 100 again, which affects the positioning efficiency. By limiting the size of the accommodating through hole 200, the disc capacitor 15 in an inclined attitude or position that does not match the accommodating cavity cannot be fitted into the accommodating cavity, so that the disc capacitor 15 falling into the accommodating cavity is accurately positioned.

[0041] Further, the depth of the accommodating through hole 200 is less than or equal to the thickness of the disc capacitor 15, when the disc capacitor 15 falls into the accommodating cavity of the end sealing positioning device, the disc capacitor 15 will partially protrude from the accommodating cavity of the end sealing positioning device. In this way, the disc capacitor 15 can be conveniently taken out. Preferably, as shown in Figure 7 the depth of the accommodating through hole 200 is 0.5-0.8 times the thickness of the disc capacitor 15. Since the height of the positioning column 100 cannot exceed the depth of the accommodating cavity formed after the accommodating plate 20 covers the positioning bottom plate 10, if the depth of the accommodating through hole 200 is less than 0.5 times the thickness of the disc capacitor 15, it means that the height of the positioning column 100 can only be 0.5 times the depth of the central inner hole 155 or even lower, that is, the length of the positioning column 100 extending into the disc capacitor 15 becomes shorter, so that the disc capacitor 15 is easily affected by external force and displaced, resulting in reduced positioning accuracy. If the depth of the accommodating through hole 200 is greater than 0.8 times the thickness of the disc capacitor 15, it will increase the difficulty of taking out the disc capacitor 15. When the depth of the accommodating through hole 200 is equal to the thickness of the disc capacitor 15, if the disc capacitor 15 is to be taken out, a tool such as adhesive tape needs to be used, and the specific operation process is as follows: after the disc capacitors 15 are fixed on the positioning bottom plate 10 by the cooperation of the accommodating plate 20 and the positioning bottom plate 10, the accommodating plate 20 can be removed, the adhesive tape is adhered to one side of the accommodating plate 20 and covers all the accommodating through holes 200, at this time, the adhesive tape and the accommodating through holes 200 form a semi-closed accommodating space, then the accommodating plate 20 with the adhesive tape adhered to the top surface is re-covered on the positioning bottom plate 10, so that each disc capacitor 15 extends into the corresponding accommodating space on the accommodating plate 20, at this time, the adhesive tape in each accommodating space adheres to the corresponding disc capacitor 15, in this way, when the accommodating plate 20 is removed again, all the disc capacitors 15 on the positioning bottom plate 10 can be transferred to the accommodating plate 20, and then the disc capacitors 15 can be processed in the next process. Of course, when the depth of the accommodating through hole 200 is less than the thickness of the disc capacitor 15, the disc capacitors 15 can also be taken out in batches by the cooperation of the adhesive tape and the accommodating plate 20 fixed on the positioning bottom plate 10.

[0042] In the above-mentioned end sealing positioning device, the positioning bottom plate 10 and the accommodating plate 20 can be two detachable components or integrally formed, but preferably are two detachable components, one is to reduce the manufacturing difficulty, and the other is that the accommodating plate 20 can be applied to the subsequent end sealing process in cooperation with the end sealing tool. Since the end sealing tool is not the focus of improvement of the present application, it will not be described in detail here.

[0043] When the positioning bottom plate 10 and the accommodating plate 20 can be two detachable components, in order to realize the quick alignment of the positioning column 100 on the positioning bottom plate 10 and the accommodating through hole 200 on the accommodating plate 20, the positioning bottom plate 10 is further provided with a limiting structure 102. As shown in Figure 3 and Figure 5As shown, the limiting structure 102 includes a first limiting piece 1021 and a second limiting piece 1022, which are respectively arranged at the edge positions of the adjacent two side edges of the positioning bottom plate 10. Specifically, the first limiting piece 1021 is in a plate-shaped structure extending along the first direction D1, and the second limiting piece 1022 is in a plate-shaped structure extending along the second direction D2, both of which are perpendicular to the positioning bottom plate 10, so that the limiting structure 102 as a whole is in an "L" shape, wherein the first direction D1 is parallel to the second direction D2. When the accommodating plate 20 is coupled with the positioning bottom plate 10, the first limiting piece 1021 and the second limiting piece 1022 can respectively abut against the adjacent two side edges of the accommodating plate 20 to respectively limit the displacement of the accommodating plate 20 with respect to the positioning bottom plate 10 along the second direction D2 and the first direction D1, thereby achieving the quick alignment of the accommodating plate 20 with the positioning bottom plate 10. The first limiting piece 1021 and the second limiting piece 1022 can be in a plate-shaped structure, or in a columnar protruding structure, or in a mixed structure of the columnar protruding structure and the plate-shaped structure, or in other shape structures, as long as the first limiting piece 1021 and the second limiting piece 1022 are respectively arranged at or close to the edge positions of the adjacent two side edges of the positioning bottom plate 10 and can limit the displacement of the accommodating plate 20. Of course, the limiting structure 102 can also be arranged on the accommodating plate 20.

[0044] Compared with the prior art, the utility model discloses a positioning column near the height of the base surface is lifted through the accommodating plate coupled with the positioning bottom plate, forms a disc capacitor's accommodating cavity that can accommodate, makes the positioning column be located in the accommodating cavity, and the height of the positioning column does not exceed the depth of the accommodating cavity, through the multiple disc capacitors of being pushed simultaneously are moved on the base surface that is lifted along the horizontal direction, makes the disc capacitor that does not have automatically fall into the accommodating cavity, and realizes the positioning column and disc capacitor center inner hole plug -in fixed in the process of falling into the accommodating cavity, does not need to pick up disc capacitor one by one, and then inserts and fixes after aligning the positioning column, can realize the quick positioning to batch disc capacitor, and it is favorable to improve production efficiency.

[0045] The terminology used by the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present application. As used in the description of the embodiments of the present application and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It also will be understood that the term "multiple" refers to two or more, unless otherwise indicated. The terms "first", "second", "third", etc. are used merely as labels, and are not intended to signify relative importance or a particular order of sequence and precedence of hierarchy. The term "and / or" used in the present document comprises any or all possibilities of associated listed items. The above description refers to the accompanying drawings, which show, by way of example, the embodiments of the present application. The same reference numerals in different drawings denote the same or similar elements. The specific meanings of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

[0046] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of protection of the present application.

Claims

1. An end termination positioning device for a disc capacitor, comprising: The positioning base plate (10) and the accommodating plate (20) coupled with the positioning base plate (10); The positioning base plate (10) is provided with m positioning columns (100) which can extend into the central hole of the disc capacitor, wherein m≥1; The accommodating plate (20) is provided with accommodating through holes (200) corresponding to the positioning columns (100); When the accommodating plate (20) is coupled with the positioning base plate (10), the positioning base plate (10) and the accommodating through holes (200) form open accommodating cavities which can accommodate the disc capacitor (15), and each positioning column (100) is located in the corresponding accommodating cavity, and the height of the positioning column (100) does not exceed the depth of the accommodating cavity.

2. The end sealing positioning device of the disc capacitor according to claim 1, wherein: The height of the positioning column (100) is 0.5-0.8 times the depth of the accommodating cavity.

3. The end sealing positioning device of the disc capacitor according to claim 1, wherein: The outer peripheral side surface of the positioning column (100) is adapted to the shape of the inner side wall of the central hole of the disc capacitor.

4. The end sealing positioning device of the disc capacitor according to claim 3, wherein: The positioning column (100) is cylindrical, and the diameter of the positioning column (100) is 0.8-0.9 times the hole diameter of the central hole of the disc capacitor.

5. The end sealing positioning device of the disc capacitor according to claim 1, wherein: The hole diameter of the accommodating through hole (200) is 1.2-1.5 times the outer diameter of the disc capacitor (15).

6. The end sealing positioning device of the disc capacitor according to claim 1, wherein: The depth of the accommodating cavity is less than or equal to the thickness of the disc capacitor (15).

7. The end sealing positioning device of the disc capacitor according to claim 5, wherein: The depth of the accommodating cavity is 0.5-0.8 times the thickness of the disc capacitor (15).

8. The end sealing positioning device of the disc capacitor according to any one of claims 1-7, wherein: When m≥2, the positioning columns (100) are arranged in an array, and the accommodating through holes (200) are arranged in the same array as the positioning columns (100).

9. The end sealing positioning device of the disc capacitor according to claim 8, wherein: The positioning base plate (10) is provided with a rows of positioning columns (100), wherein a≥2; The positioning columns (100) in the a-th row are arranged in a staggered manner with the positioning columns (100) in the (a-1)-th row.

10. The end sealing positioning device of the disc capacitor according to any one of claims 1-7, wherein: One of the positioning base plate (10) and the accommodating plate (20) is provided with a limiting structure (102), and when the positioning base plate (10) is coupled with the accommodating plate (20), the limiting structure (102) can engage the other one of the positioning base plate (10) and the accommodating plate (20), so that each positioning column (100) is aligned with the center position of the accommodating through hole (200).

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