CN216133768U

CN216133768U - High-voltage pulse capacitor applicable to portable equipment

Info

Publication number: CN216133768U
Application number: CN202121789793.1U
Authority: CN
Inventors: 王坤; 胡金梅; 黄庆安; 陆立钱
Original assignee: Guangdong Eaco Electronic Technology Co ltd
Current assignee: Guangdong Eaco Electronic Technology Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-03-25
Anticipated expiration: 2031-08-02

Abstract

The application relates to the field of portable equipment capacitor technology, especially, relate to a high-voltage pulse capacitor who can be used to portable equipment, it includes insulating casing, set up in capacitor core in the insulating casing and be used for connecting respectively two high-voltage electric wires of capacitor core both ends electrode, the capacitor core is formed by the winding of super high square resistance metallized film. The portable device has the advantages of being small in size, high in voltage, capable of reducing the size of the device and capable of improving portability of the portable device.

Description

High-voltage pulse capacitor applicable to portable equipment

Technical Field

The present application relates to the field of portable device capacitance technology, and more particularly, to a high voltage pulse capacitor for a portable device.

Background

Some portable devices are difficult to be externally connected with a power supply due to the influence of the use environment and the work requirement, and the portable devices need extremely high working voltage, and usually, a plurality of large-voltage pulse capacitors are arranged inside the devices to store energy and supply power to the devices, such as an automatic external defibrillator (AED for short).

However, the general pulse capacitor in the market is low in voltage and large in size, so that the size of the AED is increased, and the concept of portability is contradictory.

Disclosure of Invention

To the deficiencies that exist in the prior art, the present application provides a high voltage pulse capacitor that is small in size and can be used in portable devices.

The application provides a can be used to portable equipment's high-voltage pulse condenser adopts following technical scheme:

a high-voltage pulse capacitor applicable to portable equipment comprises an insulating shell, a capacitor core arranged in the insulating shell and two high-voltage wires respectively used for connecting electrodes at two ends of the capacitor core, wherein the capacitor core is formed by winding an ultrahigh sheet resistance metalized film.

Through adopting above-mentioned technical scheme, compare general pulse capacitor, the capacitor core that adopts super high sheet resistance metallized film to coil and form is high pressure resistant can stronger, and the capacitor core of the same volume can bear higher voltage, uses insulating casing encapsulation capacitor core simultaneously for the condenser need not to carry out utmost point shell insulation processing, makes the size of condenser compacter, and the volume is littleer, thereby makes the AED equipment volume of using this high voltage pulse capacitor littleer, improves AED equipment's portability.

Optionally, the insulating housing is a cylinder with an opening at one end, and the insulating housing is made of plastic.

By adopting the technical scheme, the opening is convenient for the installation of the capacitor core, and the insulating shell made of plastic is adopted, so that the portability of the AED equipment can be further improved due to the light characteristic of the plastic, and meanwhile, the manufacturing cost can also be reduced.

Optionally, the two ends of the capacitor core are respectively and fixedly connected with a switching metal plate, and the high-voltage wire is electrically connected with the capacitor core through the switching metal plates.

Through adopting above-mentioned technical scheme, switching metal sheet can increase the through-flow area, reduces the operating temperature of condenser.

Optionally, the material of the transition metal plate is copper or copper alloy.

By adopting the technical scheme, compared with iron, aluminum and the alloy of iron and aluminum, copper or copper alloy has excellent low resistivity and high thermal conductivity, and has better electric conductivity and heat dissipation performance.

Optionally, an insulating sealing layer is disposed between the capacitor core and the insulating housing, and the insulating sealing layer seals an opening of the insulating housing.

By adopting the technical scheme, the insulating sealing layer can encapsulate the capacitor core in the insulating shell, and the insulating capability of the capacitor is improved.

Optionally, the insulating sealing layer is made of epoxy resin.

By adopting the technical scheme, the epoxy resin not only has good insulating property, but also has excellent bonding property, the insulating shell and the capacitor core can be bonded together when the capacitor core is insulated and sealed in the insulating shell, and the reliability of the product is obviously improved

Optionally, one end of the high-voltage wire, which is far away from the capacitor core, is connected with a plug terminal.

Through adopting above-mentioned technical scheme, the setting up of plug terminal makes things convenient for the user dismouting to change the condenser.

Optionally, the ultrahigh sheet resistance metallized film includes a film dielectric layer and a metallized layer coated on the film dielectric layer, the film dielectric layer is an insulating layer, and the metallized layer adopts a zinc-aluminum composite metal layer.

By adopting the technical scheme, when the ultrahigh sheet resistance metallized film is curled, the capacitance can be formed between the adjacent metallized layers to store electric quantity, the zinc-aluminum composite metal layer is favorable for slowing down the oxidation of a coating, the service life of the capacitor is prolonged, the partition structure of the zinc-aluminum composite metal layer is matched with the distribution characteristics of capacitance current density, the self-healing performance is good, the electric resistance and the self-healing capacity of the capacitor are improved, the thickness of a film dielectric layer can be reduced, and the volume of the high-voltage pulse capacitor is further reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. compare general pulse capacitor, the capacitor core that adopts super high sheet resistance metallized film to coil and form is high pressure resistant ability stronger, and the capacitor core of the same volume can bear higher voltage, uses insulating casing encapsulation capacitor core simultaneously for the condenser need not to carry out the insulating processing of polar shell, makes the size of condenser compacter, and the volume is littleer, thereby makes the AED equipment volume of using this high voltage pulse capacitor littleer, improves the portability of AED equipment.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic sectional structure view of fig. 1.

Fig. 3 is a schematic view of the structure of fig. 1 after the insulating sealing layer is removed.

Fig. 4 is a schematic structural diagram of an ultra-high sheet resistance metallized film.

Description of reference numerals: 1. an insulating housing; 2. a capacitor core; 3. a high-voltage wire; 4. transferring a metal plate; 5. an insulating sealing layer; 6. plugging terminals; 7. a thin film dielectric layer; 8. a metallization layer; 9. an ultra-high sheet resistance metallized film.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a high-voltage pulse capacitor which can be used for portable equipment. Referring to fig. 1 and 2, the high voltage pulse capacitor for portable equipment includes an insulating housing 1, a capacitor core 2 and two high voltage wires 3, wherein the insulating housing 1 is a cylinder with one end open and the other end closed, and the insulating housing 1 is made of plastic, the capacitor core 2 is a cylinder formed by winding an ultra-high sheet resistance metallized film 9, and a through hole penetrating the cylinder is formed on the top surface of the cylinder, in this embodiment, the insulating housing 1 is made of PBT plastic, which has good heat resistance and insulation, and is not easy to age due to heat generation during the operation of the high voltage pulse capacitor itself, which is beneficial to improving the service life of the high voltage pulse capacitor, and meanwhile, the outer diameter of the capacitor core 2 is smaller than the inner diameter of the insulating housing 1, and the top surface of the capacitor core 2 is located inside the insulating housing 1. In addition, equal fixedly connected with switching metal sheet 4 on the top surface and the bottom surface of capacitor core 2, the one end of a high-tension cable 3 can be worn to locate in the through-hole and extend to cylindrical bottom surface department and with switching metal sheet 4 electric connection, another high-tension cable 3's one end then with be located the switching metal sheet 4 electric connection on the 2 top surfaces of capacitor core, therefore, two high-tension cables 3 can respectively with the both ends electric connection of capacitor core 2, and in order to make things convenient for the user to install the high-voltage pulse condenser, the equal fixedly connected with plug terminal 6 of one end that switching metal sheet 4 was kept away from to two high-tension cables 3, in this embodiment, switching metal sheet 4 is the switching copper bar, the switching copper bar can increase through-flow area, reduce the temperature of the during operation of high-voltage pulse condenser.

Referring to fig. 2 and 3, in the present embodiment, a gap is left between the capacitor core 2 and the inner side wall and the bottom wall of the insulating housing 1, and the top surface of the capacitor core 2 is located inside the insulating housing 1, so that an insulating material is filled in the gap to form an insulating sealing layer 5, and considering the encapsulation and fixation between the capacitor core 2 and the insulating housing 1, the insulating material is selected from epoxy resin with good adhesion performance and insulation performance, so that the capacitor core 2 can be adhesively fixed with the inner side wall of the insulating housing 1.

Referring to fig. 4, the ultra-high sheet resistance metallized film 9 is composed of a film dielectric layer 7 and a metallized layer 8, the film dielectric layer 7 is an insulating layer, the metallized layer 8 is a zinc-aluminum composite metal layer, and the metallized layer 8 is coated on the top surface of the film dielectric layer 7. Therefore, when the ultrahigh sheet resistance metallized film 9 is curled, a capacitor can be formed between the adjacent metallized layers 8 to store electric quantity, the zinc-aluminum composite metal layer is favorable for slowing down the oxidation of the coating and prolonging the service life of the high-voltage pulse capacitor, the structure of the zinc-aluminum composite metal layer is matched with the distribution characteristics of capacitance current density, the self-healing performance is good, the electric strength and the self-healing capacity of the high-voltage pulse capacitor are improved, the thickness of the film dielectric layer 7 can be reduced, the volume of the high-voltage pulse capacitor is further reduced, the volume of AED equipment applying the high-voltage pulse capacitor is reduced, and the portability of the AED equipment is improved.

The implementation principle of the high-voltage pulse capacitor applicable to the portable equipment in the embodiment of the application is as follows: compare general pulse capacitor, adopt the capacitor core 2 that the metallization film of super high sheet resistance 9 was convoluteed and is formed to be able to bear high-pressure resistance stronger, make the capacitor core 2 of the same volume can bear higher voltage, insulating casing 1 that adopts the PBT plastics to make high-voltage pulse capacitor need not to carry out the insulating processing of polar shell simultaneously, make high-voltage pulse capacitor's size compacter, the volume can further reduce, thereby make the AED equipment volume of using high-voltage pulse capacitor littleer, improve the portability of AED equipment.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A high-voltage pulse capacitor usable with a portable device, characterized in that: the capacitor comprises an insulating shell (1), a capacitor core (2) arranged in the insulating shell (1) and two high-voltage wires (3) respectively used for connecting electrodes at two ends of the capacitor core (2), wherein the capacitor core (2) is formed by winding an ultrahigh sheet resistance metalized film (9).

2. A high voltage pulse capacitor usable with a portable device according to claim 1, wherein: the insulating shell (1) is a cylinder with one open end, and the insulating shell (1) is made of plastic.

3. A high voltage pulse capacitor usable with a portable device according to claim 1, wherein: the capacitor is characterized in that two ends of the capacitor core (2) are respectively and fixedly connected with a switching metal plate (4), and the high-voltage wire (3) is electrically connected with the capacitor core (2) through the switching metal plates (4).

4. A high voltage pulse capacitor usable with a portable device according to claim 3, wherein: the material of the transfer metal plate (4) is copper or copper alloy.

5. A high voltage pulse capacitor usable with a portable device according to claim 1, wherein: an insulating sealing layer (5) is arranged between the capacitor core (2) and the insulating shell (1), and the insulating sealing layer (5) seals an opening of the insulating shell (1).

6. A high-voltage pulse capacitor applicable to a portable device according to claim 5, wherein: the insulating sealing layer (5) is made of epoxy resin.

7. A high voltage pulse capacitor usable with a portable device according to claim 1, wherein: one end of the high-voltage wire (3) far away from the capacitor core (2) is connected with a plug terminal (6).

8. A high voltage pulse capacitor usable with a portable device according to claim 1, wherein: the ultrahigh sheet resistance metallized film (9) comprises a film dielectric layer (7) and a metallized layer (8) coated on the film dielectric layer (7), the film dielectric layer (7) is an insulating layer, and the metallized layer (8) adopts a zinc-aluminum composite metal layer.