Tool for CBB direct current axial capacitor

Abstract

The utility model belongs to the technical field of capacitor production, and particularly relates to a tool for a CBB direct current axial capacitor, which comprises a tool main body, the tool main body comprises a main frame body, the center of the top surface of the main frame body is axially provided with an electrode positioning hole penetrating through the bottom surface of the main frame body, and the electrode positioning hole is used for axially positioning a capacitor electrode placed on the main frame body; the electrode positioning hole comprises a groove located in the upper layer and a threaded through hole axially deepened in the groove. According to the utility model, through the arrangement of the electrode positioning holes, when the capacitor is placed on the main frame body, the electrode ends of the capacitor can be just axially positioned in the grooves, and are in threaded connection with the electrode ends in the grooves while being connected with the threaded through holes through fasteners (such as bolts), so that the electrodes of the capacitor are positioned and fixed; therefore, when the capacitor is assembled and filled, the electrode of the capacitor does not move, so that the problems of deviation and deflection in the assembling process are solved, and the product quality is improved.

Description

Technical Field

[0001] This utility model belongs to the field of capacitor manufacturing technology, specifically relating to a tooling for a CBB DC axial capacitor. Background Technology

[0002] CBB DC axial capacitor is a DC capacitor that uses polypropylene film as the dielectric. Because its electrodes are located at both ends of the axis of its main body, it forms an axial capacitor.

[0003] The electrodes of existing CBB DC axial capacitors are installed at both ends along the axial direction. After installation, the two ends are not exposed at the same height, are skewed, or are not centered. In view of this, this utility model provides a tooling for CBB DC axial capacitors to solve the above problems. Utility Model Content

[0004] To achieve the above objectives, the present invention provides the following technical solution: a tooling for a CBB DC axial capacitor, comprising a tooling body, the tooling body including a main frame, wherein an electrode positioning hole is axially opened at the center of the top surface of the main frame and passes through its bottom surface, so as to axially position the capacitor electrode placed on the main frame.

[0005] The electrode positioning hole includes a groove located on the upper layer and a threaded through hole that is axially deepened inside the groove.

[0006] As a preferred tooling for a CBB DC axial capacitor according to this utility model, the size of the groove is adapted to the electrode size of the capacitor.

[0007] As a preferred tooling for a CBB DC axial capacitor according to this utility model, the main frame has a cross-shaped structure.

[0008] As a preferred tooling for a CBB DC axial capacitor according to this utility model, the bottom surface of each support foot of the main frame is provided with a positioning slot for engaging the elastic element.

[0009] As a preferred tooling for a CBB DC axial capacitor according to this utility model, the positioning slot extends in the radial direction perpendicular to the main frame.

[0010] As a preferred embodiment of the tooling for a CBB DC axial capacitor according to this utility model, the tooling body further includes a limiting part that extends axially from each support end of the main frame. When the capacitor is axially placed on the main frame, the inner side of the limiting part is tangent to the periphery of the capacitor.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention, through the opening of electrode positioning holes, allows the capacitor's electrode terminals to be axially positioned within the groove when the capacitor is placed on the main frame. These terminals are then connected to the threaded through-holes via fasteners (such as bolts) to secure the capacitor electrodes. This prevents the capacitor electrodes from moving during assembly and filling, thus preventing misalignment and skew during assembly and improving product quality. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model before assembly with the capacitor;

[0015] Figure 2 This is a three-dimensional structural diagram of the tooling body of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the tooling body of this utility model from another perspective;

[0017] Figure 4 This is a schematic diagram of the main cross-sectional structure of the tooling body of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the present invention when assembled with a capacitor;

[0019] Figure 6 This is a cross-sectional structural diagram of the present invention when assembled with a capacitor.

[0020] In the figure: 1. Tooling body; 101. Main frame; 102. Limiting part; 103. Electrode positioning hole; 1031. Groove; 1032. Threaded through hole; 104. Positioning slot; 2. Elastic element; 3. Capacitor. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model relates to a tooling for a CBB DC axial capacitor, such as... Figures 1-2As shown, the fixture includes a tooling body 1, which has a cross-shaped main frame 101 for placing a capacitor 3, and a limiting part 102 extending axially from each support end of the main frame 101. It should be noted that the support of the main frame 101 is the protruding end of its cross-shaped structure, and the inner side of the limiting part 102 is arc-shaped. The axial dimension of its inner side to the main frame 101 is equal to the radius dimension of the capacitor 3. Thus, when the capacitor 3 is axially placed on the main frame 101, the inner side of the limiting part 102 is tangent to the periphery of the capacitor 3. Through the setting of the limiting part 102, when the capacitor 3 is filled, the limiting part 102 can provide strong radial support to the periphery of the plastic shell of the capacitor 3, thereby deforming the plastic shell of the capacitor 3 during the filling process to reduce the occurrence of its elliptic phenomenon.

[0023] like Figures 2-3 As shown, an electrode positioning hole 103 is axially formed at the center of the top surface of the main frame 101, penetrating its bottom surface. Figure 4 As shown, the electrode positioning hole 103 includes a groove 1031 located on the upper layer for fitting and positioning the electrode of the capacitor 3, and a threaded through hole 1032 that is axially deepened inside the groove 1031. The bottom surface of each support end of the main frame 101 is provided with a positioning slot 104 for engaging the elastic member 2. In this embodiment, the positioning slot 104 extends in the radial direction perpendicular to the main frame 101.

[0024] Taking CBB DC axial capacitor assembly as an example, such as Figures 5-6 As shown, in use, first prepare two sets of tooling bodies 1. Place the capacitor 3 axially on the main frame 101 of one set of tooling bodies 1, and embed one end of its electrode into the groove 1031 of the main frame 101. Use a bolt that matches the thread structure of the threaded through hole 1032 to screw into the threaded through hole 1032, and thread it to the threaded groove that matches the threaded through hole 1032 at the electrode shaft end of the capacitor 3 to fix the electrode axially. Then place the other set of tooling bodies 1 on the other end of the capacitor 3. After fixing the electrode at this end using the same steps as above, use the elastic element 2 to snap into the positioning slot 104 to fix the two sets of tooling bodies 1 together. In this embodiment, the elastic element 2 is a rubber band. Finally, fix the filler of the capacitor 3. After the filler has cured, remove the bolt of the positioning electrode, loosen the rubber band, and take out the capacitor 3.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A jig for CBB direct current axial capacitance, characterized by, Include: Tool main body (1), the tool main body (1) includes main frame body (101), the top surface center of main frame body (101) is axially provided with electrode positioning hole (103) through its bottom surface, to place capacitor electrode on main frame body (101) axial positioning; The electrode positioning hole (103) includes the groove (1031) in the upper layer, and the threaded hole (1032) is axially deepened and opened in the groove (1031).

2. The CBB DC axial capacitor tooling of claim 1, wherein: The size of the groove (1031) is adapted to the size of the electrode of the capacitor.

3. The CBB DC axial capacitor tooling of claim 1, wherein: The main frame body (101) is a "cross" structure.

4. The CBB DC axial capacitor tooling of claim 3, wherein: The bottom surface of each leg end of the main frame body (101) is provided with a positioning clamping groove (104) for clamping elastic member (2).

5. The CBB DC axial capacitor tooling of claim 4, wherein: The positioning clamping groove (104) extends in the radial direction perpendicular to the main frame body (101).

6. The CBB DC axial capacitor tooling of claim 1, wherein: The tool main body (1) further comprises a limiting portion (102) axially extending at each leg end of the main frame body (101), when the capacitor is axially placed on the main frame body (101), the inner side surface of the limiting portion (102) is tangent to the circumference side of the capacitor.

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