Thin film capacitor with built-in terminal fixing structure

Abstract

The utility model discloses a film capacitor with a built-in terminal fixing structure, which comprises a capacitor shell, a laminated core is arranged in an inner cavity of the capacitor shell, a sealing cover is arranged on the right side of the capacitor shell, a fixing assembly is arranged on the left side of the sealing cover, and the fixing assembly is arranged on the right side of the capacitor shell. The fixing assembly comprises a fixing plate fixedly connected to an inner cavity of the capacitor shell, elastic clamping plates are fixedly connected to the top and the bottom of the right side of the fixing plate, a fixing shell is fixedly connected to the left side of the sealing cover, and limiting clamping holes matched with the elastic clamping plates are formed in the top and the bottom of the fixing shell. According to the utility model, through the arrangement of the connecting assembly, the electrode tip terminal is stably installed on the surface of the sealing cover to form a connecting terminal, and finally through the arrangement of the fixing assembly, the sealing cover and the electrode tip terminal are stably installed on the right side of the inner cavity of the capacitor shell, so that the purposes of stable and firm connection and simple and rapid assembly can be achieved.

Description

Technical Field

[0001] This utility model belongs to the field of capacitor processing technology, and in particular relates to a thin film capacitor with an internal terminal fixing structure. Background Technology

[0002] The terminals of a film capacitor are the components that electrically connect the film capacitor to the external circuit, serving to transmit current and signals. They are usually made of metal materials with good conductivity, such as copper, aluminum and their alloys. The terminals consist of end plates, electrodes and connecting lines, and common types include leaded type, soldered type, and bolted type.

[0003] During the assembly process of film capacitor terminals, external fasteners are generally used to limit their position, and then glue is applied for fixation. However, the capacitor itself is small in size, and external fasteners are not easy to assemble, and the position of the terminal electrode head is not easy to control. Therefore, it is necessary to provide a film capacitor with an internal terminal fixing structure. The terminals are fixed by an internal locking mechanism, and the electrode head is limited and fixed by a fixing structure, which reduces assembly steps and facilitates subsequent glue application. Utility Model Content

[0004] The purpose of this invention is to provide a thin-film capacitor with a built-in terminal fixing structure. The terminals are fixed by a built-in locking mechanism, and the electrode head is limited and fixed by a fixing structure, which reduces assembly steps and facilitates subsequent glue application, thereby solving the above-mentioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A thin film capacitor with a built-in terminal fixing structure includes a capacitor shell: a stacked core is installed in the inner cavity of the capacitor shell, a cover is provided on the right side of the capacitor shell, a fixing component is provided on the left side of the cover, the fixing component includes a fixing plate fixedly connected to the inner cavity of the capacitor shell, elastic clamping plates are fixedly connected to the top and bottom of the right side of the fixing plate, a fixing shell is fixedly connected to the left side of the cover, limiting clamping holes adapted to the elastic clamping plates are provided on the top and bottom of the fixing shell, electrode head terminals are provided through the top and bottom of the right side of the cover, and connecting components are provided on the top and bottom of the left side of the cover.

[0006] Preferably, the connecting assembly includes a limiting frame fixedly connected to the top and bottom of the left side of the cover, a conductive sheet is engaged in the inner cavity of the limiting frame, and a nut is threadedly connected to the left side of the electrode head terminal through the inner cavity of the conductive sheet.

[0007] Preferably, a sealing ring is fitted on the left side of the electrode head terminal surface, and the two sides of the sealing ring are tightly fitted to the cover and the electrode head terminal, respectively.

[0008] Preferably, the right side of the cover has an insertion hole, which is connected to two limiting holes, and a sealing plug is inserted into the inner cavity of the insertion hole.

[0009] Preferably, a sealing strip is fixedly connected to the right side of the inner wall of the capacitor housing.

[0010] The beneficial effects of this utility model are:

[0011] 1. This utility model, through the setting of the connecting component, enables the electrode head terminal to be stably installed on the surface of the cover to form a connecting terminal. Finally, through the setting of the fixing component, the cover and the electrode head terminal are stably installed on the right side of the inner cavity of the capacitor shell, thereby achieving the purpose of stable and reliable connection and simple and quick assembly.

[0012] 2. The present invention, through the setting of the connecting components, including the setting of the conductive sheet, facilitates the user to connect the electrode head terminals to the lead wires of the stacked core inside the capacitor shell. At the same time, with the cooperation of the limiting frame and the nut, the electrode head terminals and the conductive sheet can be installed stably and securely.

[0013] 3. This utility model, through the combined use of the insertion hole and the sealing plug, facilitates the user to squeeze the elastic plate, thereby making it easier for the user to separate the cover and the capacitor shell. Attached Figure Description

[0014] in:

[0015] Figure 1 This is a front cross-sectional view of one embodiment of the present invention;

[0016] Figure 2 This is a side view schematic diagram of one embodiment of the present utility model;

[0017] Figure 3 This is a perspective view of a capacitor housing and fixing assembly according to an embodiment of the present invention;

[0018] Figure 4 This is an exploded perspective view of the cover, fixing component, electrode head terminal and connecting component of one embodiment of the present invention.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Capacitor housing; 2. Laminated core; 3. Cover; 4. Fixing assembly; 41. Fixing plate; 42. Elastic retaining plate; 43. Fixing shell; 44. Limiting hole; 45. Sealing strip; 5. Electrode head terminal; 6. Connecting assembly; 61. Limiting frame; 62. Conductive sheet; 63. Nut; 64. Sealing ring; 7. Socket; 8. Sealing plug. Detailed Implementation

[0021] In the following description, embodiments of the thin-film capacitor with the built-in terminal fixing structure of the present invention will be described with reference to the accompanying drawings.

[0022] Figure 1-4 This invention illustrates a thin-film capacitor with a built-in terminal fixing structure according to an embodiment of the present invention. The capacitor includes a capacitor housing 1. A stacked core 2 is installed inside the inner cavity of the capacitor housing 1. A cover 3 is provided on the right side of the capacitor housing 1. An insertion hole 7 is provided on the right side of the cover 3, communicating with two limiting holes 44. A sealing plug 8 is inserted into the inner cavity of the insertion hole 7. The cooperation of the insertion hole 7 and the sealing plug 8 facilitates the user to press the elastic locking plate 42, thereby facilitating the separation of the cover 3 and the capacitor housing 1. A fixing component 4 is provided on the left side of the cover 3. The fixing component 4 includes a fixing plate 41 fixedly connected to the inner cavity of the capacitor housing 1. Elastic locking plates 42 are fixedly connected to the top and bottom of the right side of the fixing plate 41. A fixing shell 43 is fixedly connected to the left side of the cover 3. Limiting holes 44 adapted to the elastic locking plates 42 are provided on the top and bottom of the fixing shell 43. A sealing strip 45 is fixedly connected to the right side of the inner wall of the capacitor housing 1. Electrode terminals 5 are provided through the top and bottom of the right side of the cover 3. Connecting components 6 are provided at the top and bottom of the left side of the cover 3. The connecting components 6 include a limiting frame 61 fixedly connected to the top and bottom of the left side of the cover 3. A conductive sheet 62 is engaged in the inner cavity of the limiting frame 61. The left side of the electrode terminal 5 extends through the inner cavity of the conductive sheet 62 and is threadedly connected to a nut 63. A sealing ring 64 is fitted on the left side of the surface of the electrode terminal 5. The two sides of the sealing ring 64 are tightly fitted to the cover 3 and the electrode terminal 5, respectively. Through the setting of the connecting components 6, the conductive sheet 62 makes it easy for the user to connect the electrode terminal 5 to the lead wire of the stacked core 2 inside the capacitor housing 1. At the same time, with the cooperation of the limiting frame 61 and the nut 63, the electrode terminal 5 and the conductive sheet 62 are installed stably and securely.

[0023] Working principle: In use, the user inserts the electrode terminal 5 from right to left through the left side of the cover 3, then engages the conductive sheet 62 within the cavity of the limiting frame 61, simultaneously placing the conductive sheet 62 onto the surface of the electrode terminal 5. The user then threads the nut 63 onto the left side of the electrode terminal 5, thus electrically connecting the conductive sheet 62 and the electrode terminal 5. The cover 3 is then engaged on the right side of the capacitor housing 1, causing the left side of the fixing shell 43 to contact the surface of the elastic retaining plate 42, and simultaneously the left side of the cover 3 to contact the surface of the sealing strip 45. Continuous pressing of the cover 3 then causes the elastic retaining plate... When the elastic plate 42 is compressed, it deforms and the sealing strip 45 is compressed until the right end of the elastic plate 42 reaches the limiting hole 44. Under the action of elasticity, the elastic plate 42 is engaged in the inner cavity of the limiting hole 44, which limits and fixes the fixed shell 43. At this time, the cover 3 can be stably connected to the capacitor shell 1. Finally, the user can engage the sealing plug 8 in the inner cavity of the socket 7 to seal the socket 7. When the user needs to disassemble, a tool can be inserted into the inner cavity of the socket 7 to compress the elastic plate 42, so that the elastic plate 42 is disengaged from the inner cavity of the limiting hole 44, thereby separating the cover 3 and the capacitor shell 1.

[0024] In summary, this film capacitor with built-in terminal fixing structure, through the setting of the connecting component 6, allows the electrode head terminal 5 to be stably installed on the surface of the cover 3 to form a connecting terminal. Finally, through the setting of the fixing component 4, the cover 3 and the electrode head terminal 5 are stably installed on the right side of the inner cavity of the capacitor shell 1, thus achieving the purpose of stable and reliable connection and simple and quick assembly.

Claims

1. A thin film capacitor with built-in terminal fixing structure, characterized by, The capacitor shell (1) is provided with a laminated core (2) in the inner cavity, a cover (3) is arranged on the right side of the capacitor shell (1), a fixing assembly (4) is arranged on the left side of the cover (3), the fixing assembly (4) comprises a fixing plate (41) fixedly connected in the inner cavity of the capacitor shell (1), elastic clamping plates (42) are fixedly connected to the top and bottom of the right side of the fixing plate (41), a fixing shell (43) is fixedly connected to the left side of the cover (3), limiting clamping holes (44) are formed in the top and bottom of the fixing shell (43) and matched with the elastic clamping plates (42), electrode head terminals (5) are arranged on the top and bottom of the right side of the cover (3), and connecting assemblies (6) are arranged on the top and bottom of the left side of the cover (3).

2. The thin film capacitor of claim 1, wherein The connecting assembly (6) comprises a limiting frame (61) fixedly connected to the top and bottom of the left side of the cover (3), the limiting frame (61) is provided with a conductive sheet (62) in the inner cavity, the left side of the electrode head terminal (5) penetrates into the inner cavity of the conductive sheet (62) and is screwed with a nut (63).

3. The thin film capacitor of claim 2, wherein The left side of the surface of the electrode head terminal (5) is sleeved with a sealing ring (64), and the two sides of the sealing ring (64) are tightly attached to the cover (3) and the electrode head terminal (5).

4. The thin film capacitor of claim 3, wherein The right side of the cover (3) is provided with a jack (7), the jack (7) is communicated with the two limiting clamping holes (44), and the inner cavity of the jack (7) is inserted with a sealing plug (8).

5. The thin film capacitor of claim 4, wherein The right side of the inner wall of the capacitor shell (1) is fixedly connected with a sealing strip (45).

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