Electrode plate structure and capacitor

Abstract

The utility model discloses an electrode plate structure and capacitor apply to capacitor, including first pole plate and second pole plate, and first pole plate includes top plate and first side plate, and top plate and first side plate are connected between bending, and second pole plate includes bottom plate and second side plate, and bottom plate and second side plate are connected between bending, and first side plate and second side plate mutually insulatingly inside and outside superposition setting are arranged between, and top plate and bottom plate are configured to be used for connecting with the positive pole and negative pole of capacitor core respectively, and top plate and first side plate are connected between bending and / or bottom plate and second side plate are connected between bending and are provided with anti stress deformation structure. The utility model discloses setting up anti stress deformation structure at the bending position of electrode plate, and through this structure can prevent the deformation problem of electrode plate in the production, assembly process because of stress problem, to avoid the electrode plate and the capacitor core of being assembled between not easy, the connection unstable reliable problem of being assembled, to improve product use reliability and quality.

Description

Technical Field

[0001] This utility model relates to the field of capacitor technology, specifically to an electrode plate structure and a capacitor. Background Technology

[0002] Existing capacitor electrode plate structures typically consist of a positive electrode plate and a negative electrode plate. On the positive and negative electrode plates, there are capacitor connection plates for connecting to the capacitor and side plates that are bent and connected to the capacitor connection plates. The capacitor connection plates and side plates are connected by a bend of approximately 90°. During the assembly of the electrode plates, the electrode plates with this bend structure are prone to deformation due to stress issues, which leads to problems such as difficulty in assembling the electrode plates with the capacitor core and unstable and unreliable connections, thus affecting product quality. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an electrode plate structure that primarily solves the technical problem that existing bent capacitor electrode plate structures are prone to deformation due to stress, resulting in difficulties in assembling the electrode plate and capacitor core, and unstable and unreliable connections.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] An electrode plate structure for use in a capacitor includes a first electrode plate and a second electrode plate. The first electrode plate includes a top plate and a first side plate, which are bent together. The second electrode plate includes a bottom plate and a second side plate, which are bent together. The first side plate and the second side plate are stacked together insulated from each other. The top plate and the bottom plate are configured to be connected to the positive and negative terminals of the capacitor core, respectively. Stress-resistant deformation prevention structures are provided at the bending connection between the top plate and the first side plate and / or the bending connection between the bottom plate and the second side plate.

[0006] Furthermore, the stress-resistant deformation prevention structure is a notch structure opened at the bending connection.

[0007] Furthermore, several notched structures are arranged at intervals along the length of the bend connection.

[0008] Furthermore, an installation space for mounting the capacitor core is formed between the top plate and the bottom plate.

[0009] Furthermore, the notch structure is configured to form a potting port for injecting epoxy resin after the capacitor core is installed in place within the mounting space.

[0010] Furthermore, an insulating layer is provided between the first side plate and the second side plate to achieve mutual insulation and isolation between the first side plate and the second side plate.

[0011] Based on the same inventive concept, this utility model also provides a capacitor, including a shell, a capacitor core and the above-mentioned electrode plate structure, wherein the capacitor core and the electrode plate structure are assembled and installed together inside the shell.

[0012] Furthermore, the capacitor core is composed of several cores arranged laterally along the length of the casing.

[0013] Furthermore, one side of the housing is open. After the capacitor core and electrode plate structure are assembled in place, they are embedded into the housing from the open side. The top plate is attached to the top of the inner wall of the housing, and the bottom plate is attached to the bottom of the inner wall of the housing.

[0014] The above technical solution has the following advantages or beneficial effects:

[0015] In the electrode plate structure and capacitor described in this utility model, an anti-stress deformation structure is provided at the bending position of the electrode plate. This anti-stress deformation structure can prevent the electrode plate from deforming due to stress during production and assembly, so as to avoid problems such as difficult assembly and unstable and unreliable connection between the electrode plate and the capacitor core to be assembled, thereby improving the reliability and quality of the product. Attached Figure Description

[0016] Figure 1 This is an exploded three-dimensional structural diagram of the capacitor according to an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the assembly structure of the capacitor according to an embodiment of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the first electrode plate and the second electrode plate of the capacitor according to an embodiment of the present invention.

[0019] Labeling explanation: 1. First electrode plate, 2. Second electrode plate, 3. Anti-stress deformation structure, 4. Capacitor core, 5. Shell, 11. Top plate, 12. First side plate, 21. Bottom plate, 22. Second side plate, 41. Core. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Please refer to the appendix. Figure 1 To be continued Figure 3 An embodiment of this utility model provides an electrode plate structure for use in a thin-film capacitor, including a first electrode plate 1 and a second electrode plate 2. The first electrode plate 1 includes a top plate 11 and a first side plate 12, which are bent together. The second electrode plate 2 includes a bottom plate 21 and a second side plate 22, which are bent together. The first side plate 12 and the second side plate 22 are stacked together insulated from each other. The top plate 11 and the bottom plate 21 are configured to be connected to the positive and negative terminals of the capacitor core 4, respectively. An anti-stress deformation structure 3 is provided at the bending connection between the top plate 11 and the first side plate 12 and / or at the bending connection between the bottom plate 21 and the second side plate 22. It is understood that in this embodiment, an anti-stress deformation structure 3 is provided at the bending position of the electrode plate. This anti-stress deformation structure can prevent the electrode plate from deforming due to stress during production and assembly, so as to avoid problems such as difficult assembly and unstable and unreliable connection between the electrode plate and the capacitor core 4 to be assembled, thereby improving the reliability and quality of the product.

[0023] Furthermore, the stress-deformation prevention structure 3 is a notch structure opened at the bending connection. Further, a plurality of notch structures are arranged at intervals along the length direction at the bending connection. Preferably, in this embodiment, three stress-deformation prevention notch structures are arranged at equal intervals at the bending points of the first electrode plate 1 and the second electrode plate 2. However, those skilled in the art should understand that in other embodiments, other numbers of notch structures can be provided at the bending points of the first electrode plate 1 and the second electrode plate 2 as needed to prevent stress deformation, and the embodiment is not limited to the specific implementation disclosed herein.

[0024] Furthermore, an insulating layer is provided between the first side plate 12 and the second side plate 22 to achieve mutual insulation and isolation between the first side plate 12 and the second side plate 22.

[0025] Please refer to the appendix. Figure 1 To be continued Figure 3 An embodiment of this utility model also provides a capacitor, including a housing 5, a capacitor core 4 and the aforementioned electrode plate structure. After the capacitor core 4 and the electrode plate structure are assembled in place, they are jointly embedded inside the housing 5.

[0026] Furthermore, the capacitor core 4 is composed of several cores 41 arranged laterally along the length of the housing 5. In this embodiment, for application scenarios where there is insufficient vertical space and there are requirements for the capacity of the cores, an improved structure in which the cores 41 are arranged laterally along the length of the housing 5 is specially designed. Because the cores 41 are arranged laterally, their capacity can be increased as needed. Although the lateral arrangement of the cores 41 increases the amount of copper busbars used in the electrode plate, it can also improve its heat dissipation capacity, thereby helping to improve the stability and service life of the product.

[0027] Furthermore, an installation space for mounting the capacitor core 4 is formed between the top plate 11 and the bottom plate 21. Preferably, one side of the housing 5 is open. After the capacitor core 4 and the electrode plate structure are assembled in place, they are jointly embedded and installed inside the housing 5 from the open side, with the top plate 11 attached to the top of the inner wall of the housing 5 and the bottom plate 21 attached to the bottom of the inner wall of the housing 5. The notch structure is configured to form a potting port for injecting epoxy resin after the capacitor core 4 is installed in the installation space. In this embodiment, the notch structure has both stress deformation prevention effect and can be used as a potting port during the assembly process, which can be described as killing two birds with one stone. The overall structure is simple and practical, which facilitates the assembly and production of capacitors.

[0028] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model. Therefore, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. An electrode plate structure used in a capacitor, characterized in that: The capacitor includes a first electrode plate (1) and a second electrode plate (2). The first electrode plate (1) includes a top plate (11) and a first side plate (12), which are bent together. The second electrode plate (2) includes a bottom plate (21) and a second side plate (22), which are bent together. The first side plate (12) and the second side plate (22) are stacked together insulated from each other. The top plate (11) and the bottom plate (21) are configured to be connected to the positive and negative terminals of the capacitor core (4), respectively. The bent connection between the top plate (11) and the first side plate (12) and / or the bent connection between the bottom plate (21) and the second side plate (22) are provided with stress deformation prevention structures (3).

2. The electrode plate structure according to claim 1, characterized in that: The stress deformation prevention structure (3) is a notch structure opened at the bending connection.

3. The electrode plate structure according to claim 2, characterized in that: Several notched structures are arranged at intervals along the length of the bend connection.

4. The electrode plate structure according to claim 1, characterized in that: An installation space for mounting the capacitor core (4) is formed between the top plate (11) and the bottom plate (21).

5. The electrode plate structure according to claim 4, characterized in that: The notch structure is configured to form a potting port for injecting epoxy resin after the capacitor core (4) is installed in place within the mounting space.

6. The electrode plate structure according to any one of claims 1 to 5, characterized in that: An insulating layer is provided between the first side plate (12) and the second side plate (22) to achieve mutual insulation and isolation between the first side plate (12) and the second side plate (22).

7. A capacitor, characterized in that: The device includes a housing (5), a capacitor core (4), and an electrode plate structure as described in any one of claims 1 to 5. After the capacitor core (4) and the electrode plate structure are assembled in place, they are jointly embedded inside the housing (5).

8. The capacitor according to claim 7, characterized in that: The capacitor core (4) is composed of several cores (41) arranged laterally along the length of the shell (5).

9. The capacitor according to claim 7, characterized in that: One side of the housing (5) is open. After the capacitor core (4) and the electrode plate structure are assembled in place, they are embedded and installed inside the housing (5) from the open side of the housing (5). The top plate (11) is attached to the top of the inner wall of the housing (5), and the bottom plate (21) is attached to the bottom of the inner wall of the housing (5).

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