High-temperature-resistant capacitor film

Abstract

The utility model provides a high-temperature-resistant capacitor film, which relates to the technical field of capacitors and comprises a protective shell, an electrode layer is connected and mounted on the inner wall of the protective shell, a dielectric layer is connected and mounted on the inner wall of the electrode layer, a flame-retardant layer is connected and mounted on the inner wall of the dielectric layer, a high-temperature-resistant layer is connected and mounted on the inner wall of the flame-retardant layer, and the high-temperature-resistant layer is connected and mounted on the inner wall of the high-temperature-resistant layer. The inner wall of the high-temperature-resistant layer is connected and provided with a sealing layer, one side of the protective shell is provided with a sealing cover, one side of the sealing cover is provided with a group of leads, and the joint of the flame-retardant layer and the high-temperature-resistant layer is filled with a halogen flame retardant. According to the device, the sealing cover and the protective shell are sealed by adopting a hot-pressing sealing technology, so that a tight and uniform sealing layer can be formed at the joint of the sealing cover and the protective shell, external air, moisture, dust and other impurities are effectively prevented from entering the capacitor, the internal environment of the capacitor can be kept clean and stable, and the service life of the capacitor is prolonged. And performance reduction or failure of the capacitor caused by impurity invasion can be prevented.

Description

Technical Field

[0001] This utility model belongs to the field of capacitor technology, and more specifically, it relates to a high-temperature resistant capacitor film. Background Technology

[0002] Film capacitors are the most basic electronic components. Due to their excellent temperature characteristics, frequency characteristics, and low impedance characteristics, they are widely used in fields such as broadcasting and television, communications, computer information, aerospace, measuring instruments, energy-saving light sources, nuclear power industry, power transmission and transformation, automotive electronics, military electronics, automatic control, medical equipment, military equipment, and hybrid vehicles.

[0003] Based on the above, the inventors have discovered the following problems: existing capacitors lack effective flame-retardant properties, which leads to a decline in their performance and a lack of good sealing effect, indirectly reducing the efficiency of the capacitors.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a high-temperature resistant capacitor film in order to achieve a more practical value. Utility Model Content

[0005] The purpose and effect of this high-temperature resistant capacitor film are achieved by the following specific technical means:

[0006] A high-temperature resistant capacitor film includes a protective shell, an electrode layer connected to the inner wall of the protective shell, a dielectric layer connected to the inner wall of the electrode layer, a flame-retardant layer connected to the inner wall of the dielectric layer, a high-temperature resistant layer connected to the inner wall of the flame-retardant layer, a sealing layer connected to the inner wall of the high-temperature resistant layer, a cap installed on one side of the protective shell, a set of leads provided on one side of the cap, and a halogen flame retardant filled at the interface between the flame-retardant layer and the high-temperature resistant layer.

[0007] Furthermore, the electrode layer is configured as a metal foil.

[0008] Furthermore, the dielectric layer is made of polystyrene.

[0009] Furthermore, the flame-retardant layer is made of polyimide film.

[0010] Furthermore, the high-temperature resistant layer is made of polyester film.

[0011] Furthermore, the sealing layer is formed by injecting silicone material.

[0012] Furthermore, the joint between the cover and the protective shell is sealed using a thermo-press sealing technique.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] By designing halogenated flame retardants, which typically possess high thermal stability and can maintain their chemical stability at high temperatures, the use of halogenated flame retardants can enhance the high-temperature resistance of capacitor films, enabling them to operate normally at higher temperatures and improving the reliability and lifespan of capacitors.

[0015] The polyimide film design gives the capacitor film excellent electrical insulation properties, effectively isolating the electrodes and dielectric inside the capacitor, preventing current leakage and short circuits, and indirectly improving safety and stability during operation.

[0016] The design of the polyester film gives the capacitor film excellent heat resistance, enabling it to withstand high-temperature environments without deformation or degradation. This allows the capacitor to maintain good electrical and mechanical properties under high-temperature conditions, ensuring the reliability and stability of the capacitor.

[0017] By using hot-press sealing technology to seal the cap and the protective shell, a tight and uniform sealing layer can be formed at the joint between the cap and the protective shell. This effectively prevents external air, moisture, dust and other impurities from entering the capacitor. It not only keeps the internal environment of the capacitor clean and stable, but also prevents the capacitor's performance from deteriorating or failing due to the intrusion of impurities. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a high-temperature resistant capacitor film according to the present invention.

[0019] Figure 2 This is a schematic cross-sectional view of a high-temperature resistant capacitor film according to this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Protective shell; 2. Cover; 3. Lead wire; 4. Electrode layer; 5. Dielectric layer; 6. Flame retardant layer; 7. High temperature resistant layer; 8. Sealing layer. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Example:

[0026] As attached Figure 1 To be continued Figure 2 As shown:

[0027] This invention provides a high-temperature resistant capacitor film, comprising a protective shell 1, an electrode layer 4 connected to the inner wall of the protective shell 1, a dielectric layer 5 connected to the inner wall of the electrode layer 4, a flame-retardant layer 6 connected to the inner wall of the dielectric layer 5, a high-temperature resistant layer 7 connected to the inner wall of the flame-retardant layer 6, and a sealing layer 8 connected to the inner wall of the high-temperature resistant layer 7. A cap 2 is installed on one side of the protective shell 1, and a set of leads 3 is provided on one side of the cap 2. The interface between the flame-retardant layer 6 and the high-temperature resistant layer 7 is filled with a halogen flame retardant. Through the design of the halogen flame retardant, which typically possesses high thermal stability and can maintain its chemical stability at high temperatures, filling the capacitor film with a halogen flame retardant can enhance its high-temperature resistance, enabling it to operate normally at higher temperatures and improving the reliability and service life of the capacitor.

[0028] The electrode layer 4 is configured as a metal foil.

[0029] The dielectric layer 5 is made of polystyrene.

[0030] The flame-retardant layer 6 is made of polyimide film. Through the design of the polyimide film, the capacitor film has excellent electrical insulation properties, which can effectively isolate the electrodes and dielectric inside the capacitor, prevent current leakage and short circuit, and indirectly improve the safety and stability during operation.

[0031] The high-temperature resistant layer 7 is made of polyester film. Through the design of the polyester film, the capacitor film has excellent heat resistance and can withstand high-temperature environments without deformation or degradation. This allows the capacitor to maintain good electrical and mechanical properties under high-temperature conditions, ensuring the reliability and stability of the capacitor.

[0032] The sealing layer 8 is made of silicone material.

[0033] The sealing treatment at the joint between the cover 2 and the protective shell 1 is achieved by using hot-press sealing technology. By using hot-press sealing technology to seal the cover 2 and the protective shell 1, a tight and uniform sealing layer can be formed at the joint between the cover 2 and the protective shell 1, which can effectively prevent external air, moisture, dust and other impurities from entering the capacitor. This not only keeps the internal environment of the capacitor clean and stable, but also prevents the capacitor performance from deteriorating or failing due to the intrusion of impurities.

[0034] The specific usage and function of this embodiment are as follows:

[0035] Before installation and use, personnel need to inspect the internal components or structure of the capacitor film. Once the inspection is complete, normal installation and use can proceed. The hot-press sealing technology seals the cap 2 and the protective shell 1, ensuring a tight and uniform sealing layer at their contact point. This effectively prevents external air, moisture, dust, and other impurities from entering the capacitor. This not only maintains a clean and stable internal environment but also prevents performance degradation or failure due to impurities. Furthermore, the design of the polyimide film as the flame-retardant layer 6 gives the capacitor film excellent electrical insulation properties, effectively isolating the electrodes and dielectrics inside the capacitor. The design incorporates a high-temperature resistant layer (7) of polyester film to prevent current leakage and short circuits, indirectly improving safety and stability during operation. This layer provides excellent heat resistance, allowing the capacitor to withstand high temperatures without deformation or degradation. This ensures the capacitor maintains good electrical and mechanical properties even at high temperatures, guaranteeing its reliability and stability. Furthermore, the use of halogen flame retardants, which typically possess high thermal stability and maintain chemical stability at high temperatures, enhances the high-temperature resistance of the capacitor film, enabling it to operate normally at higher temperatures and improving its reliability and lifespan.

[0036] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A high-temperature resistant capacitor film, comprising a protective shell (1), characterized in that: An electrode layer (4) is connected to the inner wall of the protective shell (1). A dielectric layer (5) is connected to the inner wall of the electrode layer (4). A flame-retardant layer (6) is connected to the inner wall of the dielectric layer (5). A high-temperature resistant layer (7) is connected to the inner wall of the flame-retardant layer (6). A sealing layer (8) is connected to the inner wall of the high-temperature resistant layer (7). A cover (2) is installed on one side of the protective shell (1). A set of leads (3) is provided on one side of the cover (2). The joint between the flame-retardant layer (6) and the high-temperature resistant layer (7) is filled with a halogen flame retardant.

2. The high-temperature resistant capacitor film as described in claim 1, characterized in that: The electrode layer (4) is configured as a metal foil.

3. The high-temperature resistant capacitor film as described in claim 1, characterized in that: The dielectric layer (5) is made of polystyrene.

4. The high-temperature resistant capacitor film as described in claim 1, characterized in that: The flame retardant layer (6) is made of polyimide film.

5. The high-temperature resistant capacitor film as described in claim 1, characterized in that: The high-temperature resistant layer (7) is made of polyester film.

6. The high-temperature resistant capacitor film as described in claim 1, characterized in that: The sealing layer (8) is made of silicone material.

7. The high-temperature resistant capacitor film as described in claim 1, characterized in that: The sealing treatment at the joint between the cover (2) and the protective shell (1) is carried out by hot-press sealing technology.

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