CN212907417U

CN212907417U - High-frequency capacitor

Info

Publication number: CN212907417U
Application number: CN202021894056.3U
Authority: CN
Inventors: 过金建
Original assignee: Wuxi Electric Co ltd
Current assignee: Wuxi Electric Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-04-06
Anticipated expiration: 2030-09-02

Abstract

The utility model provides a high-frequency capacitor, which is characterized in that the high-frequency capacitor comprises a capacitor core and pins, silver spraying layers are arranged at two ends of the capacitor core, the capacitor core comprises an outer manganese-copper alloy film, an inner aluminum foil and a metallized polypropylene film between the outer manganese-copper alloy film and the inner aluminum foil, and partition layers are arranged at the centers of the outer manganese-copper alloy film and the inner aluminum foil; the outer portion of the capacitor core is wrapped by a shell, a flame-retardant powder layer is arranged on the outer side of the shell, and a packaging layer is arranged on the outer side of the flame-retardant powder layer. The utility model discloses the high frequency filter is effectual and the loss is less, and is more stable under high frequency voltage.

Description

High-frequency capacitor

Technical Field

The utility model mainly relates to the condenser field especially relates to a high frequency capacitor.

Background

As an electronic component widely used in electronic equipment, a capacitor is widely used in various aspects such as circuit tuning, energy conversion, control, etc., and a thin film capacitor, which is a kind of commonly used capacitor, industrially puts higher demands on design and manufacturing control thereof.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a high-frequency capacitor, including capacitor core 1 and pin 2, the capacitor core both ends are equipped with silver-sprayed layer 6, and capacitor core 1 includes outer manganin alloy membrane 101, interior aluminium foil 103 and metallized polypropylene membrane 102 between the two, outer manganin alloy membrane 101, interior aluminium foil 103 center all are equipped with partition layer 104; the capacitor core 1 is coated with a shell 3, a flame-retardant powder layer 4 is arranged on the outer side of the shell 3, and a packaging layer 5 is arranged on the outer side of the flame-retardant powder layer 4.

Preferably, the material of the flame retardant powder layer 4 is grade-A flame retardant asbestos.

Preferably, the bottom of the packaging layer 5 is provided with a mounting piece 7.

Preferably, the mounting member 7 is of an externally threaded construction.

Preferably, a protecting sleeve 8 is arranged at the junction of the bottom end of the pin 2 and the packaging layer 5, and the protecting sleeve 8 and the packaging layer 5 are made of the same material.

The utility model has the advantages that: the high-frequency filter has good high-frequency filtering effect and less loss, and is more stable under high-frequency voltage.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a half-sectional view of the present invention;

FIG. 3 is a cross-sectional view of the capacitor core of the present invention;

in the figure, the position of the upper end of the main shaft,

1. a capacitor core; 101. an outer manganese-copper alloy film; 102. a metallized polypropylene film; 103. an inner aluminum foil; 104. a partition layer; 2. a pin; 3. a housing; 4. a flame-retardant powder layer; 5. a packaging layer; 6. spraying a silver layer; 7. a mounting member; 8. a protective sleeve.

Detailed Description

In order to make the technical solution of the present invention better understood and make the above features, objects and advantages of the present invention more comprehensible, the present invention is described in further detail with reference to the accompanying drawings. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention.

As shown in fig. 1-3, the present invention comprises: the capacitor comprises a capacitor core 1 and pins 2, wherein silver spraying layers 6 are arranged at two ends of the capacitor core, the capacitor core 1 comprises an outer manganese-copper alloy film 101, an inner aluminum foil 103 and a metalized polypropylene film 102 between the outer manganese-copper alloy film 101 and the inner aluminum foil 103, and partition layers 104 are arranged at the centers of the outer manganese-copper alloy film 101 and the inner aluminum foil 103; the capacitor core 1 is coated with a shell 3, a flame-retardant powder layer 4 is arranged on the outer side of the shell 3, and a packaging layer 5 is arranged on the outer side of the flame-retardant powder layer 4.

In this embodiment, the material of the flame retardant powder layer 4 is preferably grade a flame retardant asbestos.

Set up above-mentioned structure, effectively avoid high-frequency current to produce the problem that the heat is too high when the component leads to the fact the component burning.

In the present embodiment, it is preferable that the bottom of the encapsulation layer 5 is provided with a mounting member 7.

With the above configuration, the mounting member 7 ensures that the high-frequency capacitor can be mounted at a predetermined position.

In the present embodiment, the mounting member 7 is preferably of an externally threaded configuration.

The structure is arranged, and the connection mode is threaded connection.

In this embodiment, it is preferable that a protective sleeve 8 is disposed at a junction of the bottom end of the pin 2 and the encapsulation layer 5, and the protective sleeve 8 and the encapsulation layer 5 are made of the same material.

Set up above-mentioned structure, pin stability can be guaranteed to lag 8.

In use, the high-frequency capacitor is installed in a line through the installation part 8, external current sequentially passes through the pin 2, the silver spraying layer 6, the outer manganin alloy film 101 and the inner aluminum foil 103, and due to the fact that the centers of the outer manganin alloy film 101 and the inner aluminum foil 103 are respectively provided with the partition layer 104, the high-frequency capacitor is applied to high-frequency pulses and can keep certain stability by utilizing the principle of serial voltage division.

The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of this patent application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of this patent application.

Claims

1. A high-frequency capacitor, characterized in that: the capacitor comprises a capacitor core (1) and pins (2), wherein silver spraying layers (6) are arranged at two ends of the capacitor core, the capacitor core (1) comprises an outer manganese-copper alloy film (101), an inner aluminum foil (103) and a metalized polypropylene film (102) between the outer manganese-copper alloy film and the inner aluminum foil, and partition layers (104) are arranged at the centers of the outer manganese-copper alloy film (101) and the inner aluminum foil (103);

the capacitor core (1) is externally wrapped by a shell (3), a flame-retardant powder layer (4) is arranged on the outer side of the shell (3), and a packaging layer (5) is arranged on the outer side of the flame-retardant powder layer (4).

2. The high-frequency capacitor according to claim 1, characterized in that: the flame-retardant powder layer (4) is made of A-grade flame-retardant asbestos.

3. The high-frequency capacitor according to claim 1, characterized in that: and a mounting part (7) is arranged at the bottom of the packaging layer (5).

4. A high-frequency capacitor according to claim 3, characterized in that: the mounting piece (7) is of an external thread structure.

5. The high-frequency capacitor according to claim 1, characterized in that: pin (2) bottom, with encapsulation layer (5) juncture is equipped with lag (8), lag (8) and encapsulation layer (5) adopt the same material.