Filling and sealing positioning clamp for cuboid direct-current support capacitor

Abstract

The utility model relates to an encapsulation positioning clamp for a cuboid direct-current support capacitor. The encapsulation positioning clamp comprises a base (1), a support rod (2), an upper positioning plate (3) and a fixing nut (4), wherein the four groups of supporting rods (2) are installed on the periphery of the base (1) in a threaded connection mode, the upper positioning plate (3) is installed on the tops of the four groups of supporting rods (2) in a sleeved connection mode, and the cuboid direct-current supporting capacitor is placed between the base (1) and the upper positioning plate (3) and is locked and fixed through the fixing nut (4). Through cooperation of the base, the supporting rod, the upper positioning plate and the fixing nut, the encapsulation positioning clamp can realize accurate positioning and stable clamping of the cuboid direct current supporting capacitor, and effectively solves the problems of poor contact caused by height deviation of a capacitor terminal and overlarge distortion stress of a connecting copper bar.

Description

Technical Field

[0001] This utility model relates to the field of capacitor potting and positioning technology, and in particular to a potting and positioning fixture for a cuboid DC support capacitor. Background Technology

[0002] Rectangular DC support capacitors are widely used in power transmission and transformation, industrial frequency conversion, rail transportation and other fields. Depending on the power, several capacitors are connected to the power devices through laminated copper busbars. The deviation of the capacitor terminal height is generally ±1mm. Uneven height can cause poor local contact and excessive torsional stress on the connecting copper busbars. Over time, this can loosen the terminals and cause potential capacitor failure. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a potting and positioning fixture for a cuboid DC support capacitor.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A potting and positioning fixture for a cuboid DC support capacitor includes a base 1, support rods 2, an upper positioning plate 3, and a fixing nut 4. Four sets of support rods 2 are threadedly connected around the base 1, and the upper positioning plate 3 is sleeved on the top of the four sets of support rods 2. The cuboid DC support capacitor is placed between the base 1 and the upper positioning plate 3 and locked in place by the fixing nut 4.

[0006] This utility model also has the following additional technical features:

[0007] As a further specific optimization of the technical solution of this utility model: the base 1 includes a base body 101 with an overall rectangular structure. The bottom of the base body 101 is provided with four sets of support rod threaded mounting holes 102. The bottom external thread rod 202 of the support rod 2 is threadedly connected to the support rod threaded mounting holes 102. The bottom of the base body 101 is provided with four sets of outer shell fixing holes 103. The four sets of pressure plates at the bottom of the outer shell are respectively inserted into the four sets of outer shell fixing holes 103 for bending, thereby fixing the outer shell to the base body 101. The left and right sides of the base body 101 are provided with handles 104, which facilitate the handling and movement of the potting and positioning fixture.

[0008] As a further specific optimization of the technical solution of this utility model: the support rod 2 includes a support rod body 201, the bottom of the support rod body 201 is provided with a bottom external thread rod 202, the bottom external thread rod 202 and the support rod threaded mounting hole 102 are threadedly connected; the top of the support rod body 201 is provided with a top external thread rod 203, the top external thread rod 203 and the fixing nut 4 are threadedly connected.

[0009] As a further specific optimization of the technical solution of this utility model: the upper positioning plate 3 includes an upper positioning plate body 301 with a rectangular structure. The upper positioning plate body 301 is provided with support rod through holes 302 through the upper positioning plate body 301. The top external thread rod 203 of the support rod 2 passes through the support rod through hole 302 and is threadedly connected to the fixing nut 4. The upper positioning plate body 301 is provided with a number of sets of capacitor terminal limiting holes 303 inside.

[0010] Compared with the prior art, the advantages of this utility model are:

[0011] This potting positioning fixture, through the cooperation of a base, support rod, upper positioning plate, and fixing nut, can accurately position and securely clamp a cuboid DC support capacitor, effectively solving the problems of poor contact caused by capacitor terminal height deviation and excessive torsional stress on the connecting copper busbar. Meanwhile, the handle on the base facilitates the movement of the potting positioning fixture, improving work efficiency. Furthermore, the capacitor terminal limiting holes inside the upper positioning plate further ensure the positional stability of the capacitor during the potting process, with the total height deviation of all capacitor terminals within ±0.3mm, improving potting quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the potting positioning fixture structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the base 1 structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the support rod 2 of this utility model;

[0015] Figures 4-5 This is a schematic diagram of the upper positioning plate 3 of this utility model;

[0016] Explanation of reference numerals in the attached diagram: 1. Base; 2. Support rod; 3. Upper positioning plate; 4. Fixing nut. Detailed Implementation

[0017] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings.

[0018] A potting and positioning fixture for a cuboid DC support capacitor includes a base 1, support rods 2, an upper positioning plate 3, and a fixing nut 4. Four sets of support rods 2 are threadedly connected around the base 1, and the upper positioning plate 3 is sleeved on the top of the four sets of support rods 2. The cuboid DC support capacitor is placed between the base 1 and the upper positioning plate 3 and locked in place by the fixing nut 4.

[0019] The base 1 includes a rectangular base body 101. Four sets of threaded mounting holes 102 for support rods are provided around the bottom of the base body 101. The bottom external threaded rod 202 of the support rod 2 is threadedly connected to the threaded mounting holes 102. Four sets of outer shell fixing holes 103 are provided around the bottom of the base body 101. Four sets of pressure plates at the bottom of the outer shell are inserted into the four sets of outer shell fixing holes 103 and bent to fix the outer shell to the base body 101. Handles 104 are provided on the left and right sides of the base body 101 for easy handling and moving of the potting and positioning fixture.

[0020] The support rod 2 includes a support rod body 201, a bottom external threaded rod 202 is provided at the bottom of the support rod body 201, and the bottom external threaded rod 202 is threadedly connected to the support rod threaded mounting hole 102; a top external threaded rod 203 is provided at the top of the support rod body 201, and the top external threaded rod 203 is threadedly connected to the fixing nut 4.

[0021] The upper positioning plate 3 includes an upper positioning plate body 301 with a rectangular structure. The upper positioning plate body 301 has support rod through holes 302 through its perimeter. The top external thread rod 203 of the support rod 2 passes through the support rod through holes 302 and is threadedly connected to the fixing nut 4. The upper positioning plate body 301 has several sets of capacitor terminal limiting holes 303 inside.

[0022] How to use the potting and positioning fixture for a cuboid DC support capacitor:

[0023] A rectangular DC support capacitor is placed on the base body 101, with its terminals aligned with the capacitor terminal limiting holes 303 inside the upper positioning plate body 301. Four sets of support rods 2 are then threaded onto the base body 101, with the tops of the support rods 2 passing through the support rod through holes 302 in the upper positioning plate body 301. The upper positioning plate 3 is then locked to the tops of the support rods 2 using fixing nuts 4, thus fixing the rectangular DC support capacitor between the base 1 and the upper positioning plate 3. By adjusting the tightness of the fixing nuts 4, precise potting and positioning of the rectangular DC support capacitor can be achieved, ensuring that the total height deviation of each capacitor terminal is within ±0.3mm, thereby improving the reliability and service life of the capacitor.

[0024] The above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

Claims

1. A potting positioning jig for a rectangular parallelepiped direct-current support capacitor, characterized by: Including base (1), support rod (2), upper positioning plate (3) and fixed nut (4), wherein four groups of support rods (2) are installed on the periphery of base (1) through threaded connection, the top of four groups of support rods (2) is sleeved with upper positioning plate (3), the cuboid direct current support capacitor is placed between base (1) and upper positioning plate (3), and is locked and fixed through fixed nut (4); The base (1) comprises a base body (101) in the shape of a rectangle, four support rod threaded mounting holes (102) are arranged around the bottom of the base body (101), the bottom outer threaded rod (202) of the support rod (2) is in threaded fit connection with the support rod threaded mounting hole (102); four shell fixing holes (103) are arranged around the bottom of the base body (101), four groups of tablet pressing portions at the bottom of the shell are respectively inserted into the four shell fixing holes (103) and are bent to fix the shell on the base body (101); handle (104) is arranged on the left and right sides of the base body (101), and the handle (104) facilitates carrying and moving the pouring and sealing positioning clamp; The support rod (2) comprises a support rod body (201), a bottom outer threaded rod (202) is arranged at the bottom of the support rod body (201), and the bottom outer threaded rod (202) is in threaded fit connection with the support rod threaded mounting hole (102); a top outer threaded rod (203) is arranged at the top of the support rod body (201), and the top outer threaded rod (203) is in threaded fit connection with the fixed nut (4); The upper positioning plate (3) comprises an upper positioning plate body (301) in the shape of a rectangle, support rod through holes (302) are arranged around the upper positioning plate body (301) and penetrate the upper positioning plate body (301), the top outer threaded rod (203) of the support rod (2) penetrates the support rod through hole (302) and is in threaded fit connection with the fixed nut (4); a plurality of groups of capacitor terminal limiting holes (303) are arranged in the upper positioning plate body (301).

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