Capacitor with sunken installation metal shell

Abstract

The utility model discloses a capacitor with a sunken installation metal shell, which relates to the technical field of capacitor installation, and comprises an electrode insulating seat, U-shaped installation lugs are symmetrically and fixedly connected to two sides of the top end of the electrode insulating seat, and a plurality of nuts are symmetrically and fixedly connected to one sides, close to each other, of the two U-shaped installation lugs. Holes are formed in the positions, corresponding to the nuts, of the U-shaped installation lugs, and the U-shaped installation lugs, the nuts and the holes are used for rapidly installing and fixing the capacitor. The utility model has the main advantages that the effect of quickly installing and fixing the capacitor is achieved through the U-shaped installation lugs, the nuts and the screws, the assembly is very easy by adopting a mode of welding the nuts, the complexity of twice fixation of the screws and the nuts during installation is eliminated, and the installation convenience of customers is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitor installation, in particular to a capacitor with a metal shell installed in a sinking manner. Background Art

[0002] External electrode capacitors are a type of capacitor construction where the electrodes are connected externally rather than directly to the capacitor itself. This design allows the electrodes of the capacitor to be connected and replaced more easily. External electrode capacitors are often used in applications where frequent replacement or adjustment of electrodes is required.

[0003] When installing existing external electrode capacitors, nuts and screws are required to fix both sides. Using nuts and screws to fix both sides requires more installation steps and maintenance, which increases the complexity and time cost of the operation.

[0004] The problem of needing to fix both sides by nuts and screws in the above scheme can be solved by adding U-shaped mounting ears to the edges of both ends of the upper part of the square box capacitor, opening circular holes at corresponding positions on the U-shaped mounting ears, and welding stainless steel nuts on the inner sides of the circular holes. During installation, the screws are passed through the holes on the mounting ears of the capacitor through the mounting brackets and fastened with the nuts, thereby solving the problem of complicated operation.

[0005] However, during the use of the capacitor, if it encounters certain vibration environments, the nuts may gradually loosen due to vibration, thereby affecting the fixation reliability between the capacitor and the bracket, and even causing the capacitor to fall off. In addition, during the installation of the screws, since they are tightened manually, it may also cause problems such as incomplete tightening or inconsistent tightening status. Utility Model Content

[0006] The utility model aims to solve the shortcomings of the prior art and proposes a capacitor with a metal shell installed in a sunken manner. The technical problem solved is that the existing external electrode capacitor needs to be fixed on both sides by nuts and screws during installation.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A capacitor with a metal shell mounted in a sunken manner comprises an electrode insulating seat, the top of which is symmetrically fixedly connected with U-shaped mounting ears on both sides, and a plurality of nuts are symmetrically fixedly connected with the sides of the two U-shaped mounting ears close to each other, and holes are provided at positions corresponding to the U-shaped mounting ears and the nuts, and the U-shaped mounting ears, nuts and holes are used for fast installation and fixing of the capacitor. Thus, the cumbersome fixing of the two sides of the screws and nuts is omitted during installation, and the effect of fast installation and fixing of the capacitor is achieved.

[0009] As a further improvement of the utility model, the top of the electrode insulation seat is fixedly connected with an externally fastened copper electrode, the two sides of the outside of the U-shaped mounting ears are symmetrically fixedly connected with sliding blocks, and the U-shaped mounting ears are provided with mounting brackets on the sides away from each other, and the mounting brackets and the corresponding positions of the U-shaped mounting ear holes are also provided with round holes, and a screw is threadedly connected to the corresponding mounting bracket holes, U-shaped mounting ear holes and the inside of the nut. By adopting an externally fastened copper electrode, the direct connection of the copper busbar is facilitated, and at the same time, the contact area is larger and the contact resistance is smaller, which effectively reduces the temperature rise problem caused by excessive contact.

[0010] As a further improvement of the present invention, a liquid storage tank is provided inside the mounting bracket at the top of the circular hole, an elastic structure is fixedly connected to the inner wall of the liquid storage tank on the side close to the U-shaped mounting ear, and a pressing block is fixedly connected to the side of the elastic structure away from the U-shaped mounting ear, so that the threads can be fixed by the damping compound.

[0011] As a further improvement of the present invention, a limit frame is provided outside the U-shaped mounting ear, and sliding grooves are symmetrically provided inside the limit frame, and the two sliding grooves slide with the sliding blocks fixed on both sides of the U-shaped mounting ear respectively, and a fixed cover is rotatably connected to the side of the top of the limit frame away from the external fastening copper electrode. Thus, the limit frame can slide freely outside the U-shaped mounting ear.

[0012] As a further improvement of the present invention, a connecting rod is slid in the middle slot of the fixing cover, the end of the connecting rod away from the external fastening copper electrode is fixedly connected to the fitting frame, the end of the connecting rod close to the external fastening copper electrode is fixedly connected to the motor, and the end of the motor away from the connecting rod is fixedly connected to the handle switch. Thus, the fitting frame can be controlled to rotate by the motor to achieve the effect of tightening the screw.

[0013] As a further improvement of the utility model, the connection between the U-shaped mounting ear and the nut is welding. Through welding, a metallurgical bond between metals can be formed, the connection is firm, the mechanical strength is high, the tensile and shear resistance is good, and it is not easy to loosen or break.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. Through the U-shaped mounting ears, nuts and screws, since the nuts are welded on the inner side of the U-shaped mounting ears, when the mounting bracket needs to be installed, align the round hole of the mounting bracket with the hole of the U-shaped mounting ears, and then turn the screws to make the screws threadedly connected with the mounting bracket, U-shaped mounting ears and nuts in turn, so as to achieve the effect of fast installation and fixing of capacitors. The welding nut method is very easy to assemble, which saves the tediousness of fixing the screws and nuts twice during installation, greatly improving the convenience of customer installation. Quick installation can greatly shorten the assembly time of capacitors, improve the work efficiency of production lines, and reduce labor costs. Moreover, by installing the electrode insulation seat on the inner side of the mounting bracket, the installer can have a larger operating space and more convenient and efficient operation. Moreover, quick installation is compatible with automated production lines and semi-automated production lines, which is conducive to the automation and intelligent transformation of production lines.

[0016] 2. Through the reservoir, the pressing block and the elastic structure, since a certain amount of damping compound is injected into the reservoir during the manufacturing process, when the screw rotates toward the mounting bracket, the screw will be tightened. When the screw contacts the pressing block, the pressing block will move toward the inside of the reservoir, so that it will no longer block the opening at the top of the circular hole of the mounting bracket. As a result, the damping compound inside the reservoir will fall onto the surface of the screw. The damping compound can bond the threaded parts together, increase the friction and bite force of the threaded joint, and effectively prevent the nuts and screws from loosening due to vibration, impact and other reasons. Moreover, the damping compound can not only bond the threads, but also fully fill the thread gaps, play a good sealing role, prevent the leakage of the medium or the entry of foreign impurities, and protect the threads from corrosion. The damping performance of the damping compound can also reduce the relative movement and friction of the threaded parts, thereby reducing the generation of vibration noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 The utility model is a schematic diagram of the structure of the electrode insulating seat, U-shaped mounting ears, external fastening copper electrodes, nuts and sliding blocks.

[0019] Figure 3 It is a structural schematic diagram of the screw and the mounting bracket in the utility model.

[0020] Figure 4 It is a front view cross-sectional structural schematic diagram of the mounting bracket in the present utility model.

[0021] Figure 5 It is a schematic structural diagram of the limiting frame, the fixing cover and the fitting frame in the utility model.

[0022] Figure 6 It is a schematic diagram of the structure of the connecting rod, the motor and the handle switch in the utility model.

[0023] In the figure: 101, electrode insulation seat; 102, U-shaped mounting ear; 103, external fastening copper electrode; 104, nut; 105, sliding block; 106, screw; 201, mounting bracket; 202, liquid storage tank; 203, pressing block; 204, elastic structure; 301, limit frame; 302, sliding slot; 303, fixing cover; 304, fitting frame; 305, connecting rod; 306, motor; 307, handle switch. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0026] As shown in the figure, a capacitor with a sunken metal casing includes an electrode insulating seat 101, a U-shaped mounting ear 102, an external fastening copper electrode 103, a nut 104, a sliding block 105, a screw 106 and a mounting bracket 201.

[0027] Since the top of the electrode insulating seat 101 is fixedly connected to the U-shaped mounting ear 102, and the nut 104 is symmetrically fixed and welded on one side of the U-shaped mounting ear 102 that is close to each other, when the mounting bracket 201 needs to be connected to the U-shaped mounting ear 102, the circular hole of the mounting bracket 201 is matched with the hole opened by the U-shaped mounting ear 102, and then the screw 106 is threadedly connected with the mounting bracket 201, the U-shaped mounting ear 102 and the nut 104 in sequence, so that the effect of quickly installing the mounting bracket 201 can be achieved. The method of welding the nut 104 is very easy to assemble, eliminating the tediousness of fixing the screw 106 and the nut 104 twice during installation, which greatly improves the convenience of customer installation. Quick installation can greatly shorten the assembly time of capacitors, improve the work efficiency of the production line, and reduce labor costs.

[0028] A certain amount of damping compound is injected into the liquid reservoir 202 during the manufacturing process. During the rotation of the screw 106, the screw 106 will press the pressing block 203 toward the inside of the liquid reservoir 202. At this time, the elastic structure 204 fixedly connected to the side of the pressing block 203 will undergo elastic deformation, and the pressing block 203 will no longer block the hole at the bottom of the liquid reservoir 202. When no longer blocking, the damping compound inside the liquid reservoir 202 will fall through the hole into the surface of the screw 106. The damping compound can bond the threaded parts together, increase the friction and bite force of the threaded joint, and effectively prevent the nut 104 and the screw 106 from loosening due to vibration, impact, etc. Moreover, the damping compound can not only bond the threads, but also fully fill the thread gaps, play a good sealing role, prevent the leakage of the medium or the entry of external impurities, and protect the threads from corrosion.

[0029] Furthermore, when it is necessary to install and fix the mounting bracket 201 and the U-shaped mounting ear 102, first align the sliding groove 302 opened on the side of the limit frame 301 with the sliding block 105, and slide it downward, so that the limit frame 301 limits the two sides of the U-shaped mounting ear 102, and then fit the mounting bracket 201 into the limit frame 301. At this time, the holes of the mounting bracket 201 are completely aligned with the holes of the U-shaped mounting ear 102. The user then places the screws 106 into each hole one by one, and then flips the fixing cover 303 downward through the rotation connection between the fixing cover 303 and the limit frame 301. At this time, the bottom horizontal bar of the fixing cover 303 fixes the mounting bracket 201. By setting a limiting structure on the bracket, the installation position and angle of the capacitor can be accurately controlled to avoid position offset or tilt caused by manual operation, thereby improving the accuracy and consistency of the entire assembly.

[0030] Further, when the fixing cover 303 is flipped over, the fitting frame 304 will be located on the side of the fixing cover 303 close to the screw 106, and then the grip switch 307 is manually controlled to fix the fitting frame 304 with the screw 106. At this time, the switch of the motor 306 on the grip switch 307 is started. Since the output shaft of the motor 306 and the fitting frame 304 are fixedly connected by the connecting rod 305, the starting of the motor 306 will rotate the fitting frame 304, so that the screw 106 can be tightened electrically, and then the grip switch 307 is moved to tighten all the screws 106 in turn. The electric tool can accurately control the size of the tightening torque, so that the tightening torque of each screw 106 is consistent, avoiding the unevenness caused by manual operation. Moreover, using electric tools instead of manual tightening can reduce the labor intensity of workers and avoid occupational injuries caused by long-term repeated tightening operations.

[0031] The advantages of the utility model are: 1) The welding nut 104 is adopted, which is very easy to assemble, eliminating the tediousness of fixing the screw 106 and the nut 104 twice during installation, greatly improving the convenience of installation for customers. 2) The electrode insulation seat 101 is installed on the inner side of the mounting bracket 201, and the installer can have a larger operating space, which is more convenient and efficient. 3) The threaded parts are bonded together by damping compounds to increase the friction and bite force of the threaded joint, thereby effectively preventing the nut 104 and the screw 106 from loosening due to vibration, impact and other reasons. 4) The limit structure is set on the bracket to accurately control the installation position and angle of the capacitor to avoid position offset or tilt caused by manual operation. 5) The tightening torque can be accurately controlled by using an electric tool to tighten the ancient, so that the tightening torque of each screw 106 remains consistent to avoid unevenness caused by manual operation.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A capacitor with a metal casing installed in a sunken manner, comprising an electrode insulating seat (101), characterized in that: U-shaped mounting ears (102) are symmetrically fixedly connected to both sides of the top of the electrode insulating seat (101); a plurality of nuts (104) are symmetrically fixedly connected to one side of the two U-shaped mounting ears (102) close to each other; holes are provided at corresponding positions of the U-shaped mounting ears (102) and the nuts (104); the U-shaped mounting ears (102), the nuts (104) and the holes are used for quickly mounting and fixing capacitors.

2. A capacitor with a metal casing installed in a sunken manner according to claim 1, characterized in that: An externally connected fastening copper electrode (103) is fixedly connected to the top of the electrode insulating seat (101), sliding blocks (105) are symmetrically fixedly connected to the outer sides of the U-shaped mounting ears (102), and mounting brackets (201) are provided on the sides of the U-shaped mounting ears (102) that are away from each other. Circular holes are also provided at positions corresponding to the holes of the mounting brackets (201) and the U-shaped mounting ears (102), and a screw (106) is threadedly connected to the corresponding circular holes of the mounting brackets (201), the holes of the U-shaped mounting ears (102) and the inside of the nuts (104).

3. The capacitor with a metal casing installed in a sunken manner according to claim 2, characterized in that: A liquid storage tank (202) is provided inside the mounting bracket (201) at the top end of the circular hole, an elastic structure (204) is fixedly connected to the inner wall of the liquid storage tank (202) on the side close to the U-shaped mounting ear (102), and a pressing block (203) is fixedly connected to the side of the elastic structure (204) away from the U-shaped mounting ear (102).

4. The capacitor with a metal casing installed in a sunken manner according to claim 2, characterized in that: A limit frame (301) is arranged outside the U-shaped mounting ear (102), and sliding grooves (302) are symmetrically provided on the inner side of the limit frame (301). The two sliding grooves (302) slide respectively with sliding blocks (105) fixed on both sides of the U-shaped mounting ear (102), and a fixed cover (303) is rotatably connected to the side of the top of the limit frame (301) away from the external fastening copper electrode (103).

5. The capacitor with a metal casing installed in a sunken manner according to claim 4, characterized in that: A connecting rod (305) slides in the middle slot of the fixed cover (303); an end of the connecting rod (305) away from the external fastening copper electrode (103) is fixedly connected to a fitting frame (304); an end of the connecting rod (305) close to the external fastening copper electrode (103) is fixedly connected to a motor (306); and an end of the motor (306) away from the connecting rod (305) is fixedly connected to a handle switch (307).

6. The capacitor with a metal casing installed in a sunken manner according to claim 1, characterized in that: The connection relationship between the U-shaped mounting ear (102) and the nut (104) is welding.

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