Wear-resistant enclosure and capacitor thereof

Abstract

This application discloses a wear-resistant housing and its capacitor, comprising: a main body, a connecting portion, and a cavity for accommodating a capacitor core, the cavity being located within the main body; the connecting portion is distributed on the inner wall surface of the cavity, and includes a contact block and a transition block, the contact block being used to position the capacitor core, the transition block being distributed on both sides of the contact block, and the height of the transition block gradually decreasing along the direction close to the inner wall surface of the cavity. By setting the connecting portion and the cavity, the contact block fits against the potting portion through the transition block, which can effectively increase the contact area between the connecting portion and the potting portion, reduce the pressure exerted by the connecting portion on the potting portion during vibration, avoid wear of the connecting portion, and improve the working stability and service life of the wear-resistant housing.

Description

Technical Field

[0001] This application relates to the field of capacitor technology, and in particular to a wear-resistant housing and capacitor thereof. Background Technology

[0002] Film capacitors are capacitors constructed by overlapping metal foil as electrodes with plastic films such as polyethylene, polypropylene, polystyrene, or polycarbonate at both ends and then winding them into a cylindrical shape. After the capacitor core is wound, it needs to be fixed between the bumps inside the casing by potting epoxy resin to achieve precise positioning. However, in practical applications, capacitors vibrate with the electrical equipment, and displacement and friction can easily occur between the epoxy resin and the bumps, leading to epoxy resin powdering and wear. This can cause the capacitor core to shift or even detach, affecting the capacitor's operational stability. Summary of the Invention

[0003] This application provides a wear-resistant housing and capacitor thereof, which increases the contact area between the potting part and the housing, avoids wear on the potting part, and improves the working stability and service life of the capacitor.

[0004] The technical solution adopted by this utility model to solve its problem is: In a first aspect, a wear-resistant housing includes: a main body, a connecting portion, and a cavity for accommodating a capacitor core, the cavity being located within the main body; the connecting portion is distributed on the inner wall surface of the cavity, the connecting portion including a contact block and a transition block, the contact block being used to position the capacitor core, the transition block being distributed on both sides of the contact block, and the height of the transition block gradually decreasing along the direction close to the inner wall surface of the cavity.

[0005] The aforementioned wear-resistant housing has at least the following beneficial effects: by setting the connecting part and the cavity, the contact block fits the potting part through the transition block, which can effectively increase the contact area between the connecting part and the potting part, reduce the pressure applied by the connecting part to the potting part during vibration, avoid wear of the connecting part, and improve the working stability and service life of the wear-resistant housing.

[0006] Furthermore, the contact block is rectangular, and the transition block has an arc-shaped cross-section, with the transition block distributed at the edge of the contact block. This structure ensures that the contact block can stably fit the potting compound, avoiding excessive pressure on the potting compound from the edge of the contact block, which could affect the service life of the wear-resistant housing.

[0007] Furthermore, the connecting part is a spherical cap. This structure effectively increases the contact area between the connecting part and the potting part, effectively reduces the pressure exerted by the connecting part on the potting part, and avoids wear between the connecting part and the potting part.

[0008] Furthermore, the connecting part is a semi-cylinder. This structure increases the height of the connecting part, and the contact surface between the connecting part and the potting part is arc-shaped, effectively buffering the pressure between the connecting part and the potting part and avoiding wear between the connecting part and the potting part.

[0009] Furthermore, the inner wall of the cavity extends inward to form the connecting portion. This structure ensures that the potting portion can completely fit the connecting portion during the formation process, avoiding gaps between the connecting portion and the potting portion that would affect the protective performance of the wear-resistant shell.

[0010] Furthermore, the inner wall of the cavity is recessed towards the outside of the main body to form the connecting portion. This structure effectively improves the structural strength of the connecting portion, preventing breakage during use and ensuring the structural integrity of the wear-resistant outer shell.

[0011] Furthermore, the connecting parts are disposed on each inner wall surface of the cavity. This structure ensures that the connecting parts can stably and uniformly support the potting part, preventing the potting part from shifting or falling off during use, and ensuring the structural stability of the wear-resistant shell.

[0012] Furthermore, the main body is provided with extended surfaces on both sides, and connecting holes are provided on the extended surfaces. By providing extended surfaces and connecting holes, it is easy to fix the main body and improve the ease of use of the wear-resistant shell.

[0013] Furthermore, reinforcing ribs are provided between the main body and the outer surface. By providing reinforcing ribs, deformation of the outer surface during use is prevented, thereby improving the structural stability of the wear-resistant shell.

[0014] In a second aspect of this application, a capacitor includes a capacitor core and a wear-resistant housing as described in the first aspect, wherein the connecting portion is fixedly connected to the capacitor core via a potting portion, and the contact block and the transition block are fitted to the potting portion.

[0015] The beneficial effects of the above-mentioned capacitor are as follows: by setting the connecting part and cavity, the contact block fits the potting part through the transition block, which can effectively increase the contact area between the connecting part and the potting part, reduce the pressure exerted by the connecting part on the potting part during vibration, avoid wear of the connecting part, and improve the working stability and service life of the capacitor; by setting the extended surface and connecting hole, it is easy to fix the main body and improve the convenience of using the capacitor; by setting the reinforcing rib, it is possible to prevent the extended surface from deforming during use and improve the structural stability of the capacitor.

[0016] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description and the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a wear-resistant shell according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of a wear-resistant shell according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a wear-resistant shell according to the second embodiment of this utility model; Figure 4 This is a cross-sectional view of a wear-resistant shell according to the second embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a wear-resistant shell according to the third embodiment of this utility model; Figure 6 This is a cross-sectional view of a wear-resistant shell according to the third embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of a wear-resistant shell according to the fourth embodiment of this utility model; Figure 8 This is a cross-sectional view of a wear-resistant shell according to the fourth embodiment of this utility model. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] Reference Figures 1 to 8 This utility model embodiment provides a wear-resistant housing, including: a main body 100, a connecting part 200, and a cavity 300 for accommodating a capacitor core, the cavity 300 being located within the main body 100; the connecting part 200 is distributed on the inner wall surface of the cavity 300, the connecting part 200 including a contact block 210 and a transition block 220, the contact block 210 being used to position the capacitor core, the transition block 220 being distributed on both sides of the contact block 210, and the height of the transition block 220 gradually decreasing along the direction close to the inner wall surface of the cavity 300.

[0020] By setting the connecting part 200 and the cavity 300, the contact block 210 fits into the potting part through the transition block 220, which can effectively increase the contact area between the connecting part 200 and the potting part, reduce the pressure applied by the connecting part 200 to the potting part during vibration, avoid wear of the connecting part 200, and improve the working stability and service life of the wear-resistant shell.

[0021] In some embodiments, the contact block 210 is rectangular, and the transition block 220 has an arc-shaped cross-section, with the transition block 220 distributed at the edge of the contact block 210. This structure ensures that the contact block 210 can stably fit the potting portion, avoiding excessive pressure on the potting portion from the edge of the contact block 210, which could affect the service life of the wear-resistant housing.

[0022] In some embodiments, the connecting portion 200 is a spherical crown. This structure effectively increases the contact area between the connecting portion 200 and the potting portion, effectively reduces the pressure exerted by the connecting portion 200 on the potting portion, and avoids wear between the connecting portion 200 and the potting portion.

[0023] In some embodiments, the connecting portion 200 is a semi-cylinder. This structure increases the height of the connecting portion 200, and the contact surface between the connecting portion 200 and the potting portion is arc-shaped, effectively buffering the pressure between the connecting portion 200 and the potting portion and preventing wear between the connecting portion 200 and the potting portion.

[0024] Furthermore, the inner wall of the cavity 300 extends inward to form a connecting portion 200. This structure ensures that the potting portion can completely fit the connecting portion 200 during the formation process, avoiding gaps between the connecting portion 200 and the potting portion, which would affect the protective performance of the wear-resistant shell.

[0025] In some embodiments, the inner wall of the cavity 300 is recessed towards the outside of the body 100 to form a connecting portion 200. This structure effectively improves the structural strength of the connecting portion 200, prevents the connecting portion 200 from breaking during use, and ensures the structural integrity of the wear-resistant housing.

[0026] In some embodiments, the connecting portions 200 are disposed on each inner wall surface of the cavity 300. This structure ensures that the connecting portions 200 can stably and uniformly support the potting portion, preventing the potting portion from shifting or falling off during use, and ensuring the structural stability of the wear-resistant housing.

[0027] In some embodiments, the main body 100 is further provided with extension surfaces 110 on both sides, and connection holes 111 are provided on the extension surfaces 110. By providing extension surfaces 110 and connection holes 111, it is convenient to fix the main body 100 and improve the ease of use of the wear-resistant housing.

[0028] In some embodiments, a reinforcing rib 120 is provided between the main body 100 and the outer surface 110. By providing the reinforcing rib 120, deformation of the outer surface 110 during use is prevented, thereby improving the structural stability of the wear-resistant housing.

[0029] This utility model embodiment also provides a capacitor, including a capacitor core and a wear-resistant shell as described above, wherein the connecting part 200 is fixedly connected to the capacitor core through a potting part, and the contact block 210 and the transition block 220 are attached to the potting part.

[0030] In the production process of the wear-resistant shell in this embodiment, firstly, a conductive part 200 of corresponding size is selected according to the specifications of the capacitor core 300. The upper and lower ends of the conductive part 200 are respectively provided with a second conductive block 220 and a first conductive block 210. The first conductive block 210 is provided with a plurality of conductive sheets 211, and a notch 212 is provided between adjacent conductive sheets 211. Next, metal is sprayed on both sides of the capacitor core 300 to form a first spray layer 310 to form two electrodes of the main body 100. Then, the lower part of the conductive part 200 is fixed to the outside of the first spray layer 310 so that the conductive sheets 211 are electrically connected to the electrodes of the main body 100. Finally, metal is sprayed again on the outside of the conductive sheets 211 and the notch 212 to form a second spray layer 320 and the first conductive block 210 is stably fixed to the first spray layer 310 so that the conductive part 200 can lead the two electrodes of the main body 100 to the upper part of the main body 100 through the first conductive block 210 and the second conductive block 220. This completes the production of the wear-resistant shell. The entire process is controllable and efficient, eliminating the welding process between the main body 100 and the conductive part 200 in the traditional capacitor core manufacturing process, thus ensuring the production efficiency of the wear-resistant shell. During use, current flows into or out of the two electrodes of the main body 100 through the conductive sheet 211. Since multiple conductive sheets 211 are arranged parallel and evenly at the lower end of the conductive part 200, the current is distributed at multiple points through the connection point between the conductive sheet 211 and the first spray layer 310, which reduces the current at a single point, reduces heat generation, avoids current concentration and increased heat generation, and improves the working stability and load capacity of the wear-resistant shell and its capacitor.

[0031] As can be seen from the above description, the wear-resistant shell and capacitor of this utility model, by setting the connecting part 200 and the cavity 300, and the contact block 210 fitting the potting part through the transition block 220, can effectively increase the contact area between the connecting part 200 and the potting part, reduce the pressure applied by the connecting part 200 to the potting part during vibration, avoid wear of the connecting part 200, and improve the working stability and service life of the capacitor; by setting the outer surface 110 and the connecting hole 111, it is easy to fix the main body 100, improving the convenience of using the capacitor; by setting the reinforcing rib 120, it is possible to prevent the outer surface 110 from deforming during use, thus improving the structural stability of the capacitor.

[0032] In the several embodiments provided in this application, it should be understood that the disclosed systems, instruments, and methods can be implemented in other ways. For example, the instrument embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between instruments or units may be electrical, mechanical, or other forms. Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, i.e., they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0033] The above is a detailed description of the preferred embodiments of this application. However, this application is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A wear-resistant outer shell, characterized in that, include: The system comprises a main body, a connecting portion, and a cavity for accommodating a capacitor core, the cavity being located within the main body; the connecting portion is distributed on the inner wall surface of the cavity, the connecting portion including a contact block and a transition block, the contact block being used to position the capacitor core, the transition block being distributed on both sides of the contact block, and the height of the transition block gradually decreasing along the direction close to the inner wall surface of the cavity.

2. The wear-resistant shell according to claim 1, characterized in that, The contact block is rectangular, and the transition block has an arc-shaped cross-section. The transition block is distributed at the edge of the contact block.

3. The wear-resistant shell according to claim 1, characterized in that, The connecting part is a spherical cap.

4. The wear-resistant shell according to claim 1, characterized in that, The connecting part is a semi-cylinder.

5. A wear-resistant housing according to any one of claims 1 to 4, characterized in that, The inner wall of the cavity extends inward to form the connecting portion.

6. A wear-resistant housing according to any one of claims 1 to 4, characterized in that, The inner wall of the cavity is recessed towards the outside of the main body to form the connecting portion.

7. The wear-resistant shell according to claim 1, characterized in that, The connecting parts are disposed on each inner wall surface of the cavity.

8. The wear-resistant shell according to claim 1, characterized in that, The main body is also provided with an extension surface on both sides, and a connection hole is provided on the extension surface.

9. A wear-resistant outer shell according to claim 8, characterized in that, A reinforcing rib is provided between the main body and the outer surface.

10. A capacitor, characterized in that, It includes a capacitor core and a wear-resistant housing as described in any one of claims 1 to 9, wherein the connecting portion is fixedly connected to the capacitor core via a potting portion, and the contact block and the transition block are fitted to the potting portion.

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