CN217158098U

CN217158098U - Safety piece of surge protector

Info

Publication number: CN217158098U
Application number: CN202220942419.9U
Authority: CN
Inventors: 郑铁如; 徐旭阳; 郑铁颖; 韩丹丹; 林金鹏
Original assignee: Zhejiang Tyco Tianwei Electric Co ltd
Current assignee: Zhejiang Tyco Tianwei Electric Co ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-08-09
Anticipated expiration: 2032-04-22

Abstract

The utility model discloses a surge protector's rupture disc belongs to lightning protection equipment technical field, and it includes the rupture disc main part, the rupture disc main part is provided with first vertical curb plate, the vertical curb plate of second and roof, and wherein first vertical curb plate and the vertical curb plate of second upwards bend relatively and form the roof, one side of first vertical curb plate and the vertical curb plate of second upwards extends respectively and relative rupture disc main part outwards bends and form first welded plate and second welded plate, roof one side upwards extends and relative rupture disc main part and bends outwards and form the third welded plate, utilizes rupture disc special construction increase and electrode and participates in between the welded fastness, and increase through-current when promoting stability is more practical.

Description

Safety piece of surge protector

Technical Field

The utility model belongs to the technical field of lightning protection equipment, specifically speaking relates to a surge protector's rupture disc.

Background

A Surge Protection Device (SPD) is an indispensable Device in lightning protection of electronic equipment; also commonly referred to as "lightning arresters" or "overvoltage protectors"; the surge protector is used for limiting the transient overvoltage entering a power line and a signal transmission line within the voltage range which can be borne by equipment or a system, or discharging strong lightning current to the ground to protect the protected equipment or the system from being damaged by impact.

The existing surge protector devices also have the following disadvantages in use.

Because the safety sheet in the existing surge protector is usually welded with the electrode and the pin in an attached manner, the connection stability is poor and the passing current is small in the long-term use process. Therefore, it is necessary to design a safety plate of a surge protector.

Disclosure of Invention

Connect unstable and the little problem of through-current to current surge protector rupture disc, the utility model provides a surge protector's rupture disc utilizes rupture disc special construction to increase and electrode and participate in between the welded fastness, and the increase is passed through the electric current when promoting stability, and is more practical.

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides a surge protector's rupture disc, includes the rupture disc main part, the rupture disc main part is provided with first vertical curb plate, the vertical curb plate of second and roof, and wherein first vertical curb plate and the vertical curb plate of second bend relatively upwards and form the roof, one side of the vertical curb plate of first vertical curb plate and second upwards extends respectively and relative rupture disc main part outwards bends and forms first welding plate and second welding plate, roof one side upwards extends and relative rupture disc main part bends outwards and forms the third welding plate.

Preferably, the safety plate main body is in a convex structure.

Preferably, corresponding welding grooves are formed among the first welding plate, the second welding plate, the third welding plate and the safety piece main body, wherein movable pins are arranged in the welding grooves of the third welding plate, and first welding pins and second welding pins of piezoresistors are arranged in the welding grooves of the first welding plate and the second welding plate.

Preferably, the piezoresistor both sides are provided with first electrode and second electrode respectively, and the piezoresistor middle part is provided with the third electrode, first electrode, second electrode and third electrode extend respectively and are provided with first welding foot, second welding foot and third welding foot.

Preferably, the first welding foot is arranged in the second welding plate, the second welding foot is arranged in the first welding plate, the third welding foot is connected with the fixed pin and is fixedly connected through low-temperature soldering tin, and the third welding foot is connected with the fixed pin through high-temperature soldering tin.

Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a be provided with the first welded plate of bending formation in the rupture disc main part, second welded plate and third welded plate, and this first welded plate, form corresponding welding groove between second welded plate and third welded plate and the rupture disc main part, the first electrode and the second electrode of piezo-resistor both sides connect to the welding inslot that corresponds through first welding foot and second welding foot joint respectively, the joint of activity pin is to the welding inslot that third welded plate corresponds, and fix electrode and participating in to the rupture disc through the mode of low temperature soldering tin, thereby welded fastness has been promoted and the through-current has been increased, and is more practical.

Drawings

Fig. 1 is a schematic view of the overall structure of a rupture disc of a surge protector.

Fig. 2 is a front view of a rupture disc of a surge protector.

Fig. 3 is a schematic view showing the assembly of a rupture disc of a surge protector.

The corresponding relationship between the reference numbers of the figures and the names of the components in the figures is as follows:

10. a rupture disc main body; 101. a first vertical side plate; 1011. a first weld plate; 102. a top plate; 1021. a third weld plate; 103. a second vertical side plate; 1031. a second weld plate; 20. a voltage dependent resistor; 201. a first electrode; 2011. a first solder foot; 30. a movable pin; 40. fixing the pins; 50. a movable push rod; 60. and (5) pressing a spring.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 3, which are schematic structural diagrams of a rupture disc of a surge protector according to a preferred embodiment of the present invention, in this embodiment, the rupture disc main body 10 includes a rupture disc main body 10, the rupture disc main body 10 is provided with a first vertical side plate 101, a second vertical side plate 103 and a top plate 102, wherein the first vertical side plate 101 and the second vertical side plate 103 are bent upward relatively to form the top plate 102, one side of the first vertical side plate 101 and one side of the second vertical side plate 103 respectively extend upward and are bent outward relative to the rupture disc main body 10 to form a first welding plate 1011 and a second welding plate 1031, one side of the top plate 102 extends upward and is bent outward relative to the rupture disc main body 10 to form a third welding plate 1021, and the first welding plate 1011, the second welding plate 1031 and the third welding plate 1021 after bending formation make the installation of the rupture disc main body 10 more convenient, and simultaneously make the movable pin 30 and the first electrode 201, the second electrode 201, and the third welding plate 1021 easier to install the rupture disc main body 10, The second electrode joint is in above-mentioned three welded plates to further promote the stability of rupture disc installation, make this surge protector can be through bigger electric current, the practicality is stronger.

In this embodiment, the rupture disc main body 10 is in a "convex" structure, and the structure facilitates installation and placement of the rupture disc main body 10.

In this embodiment, form the welding groove that corresponds between first welding plate 1011, second welding plate 1031 and third welding plate 1021 and the rupture disc main part 10, wherein the welding inslot of third welding plate 1021 is provided with movable pin 30, be provided with piezo-resistor 20's first welding foot 2011 and second welding foot in first welding plate 1011 and second welding plate 1031's the welding inslot, the design of welding groove makes piezo-resistor 20 and movable pin 30 preferentially realize the joint effect when the installation, is fixed through welded mode, thereby has improved welded fastness and has effectively promoted stability to bear bigger impulse current.

In this embodiment, the two sides of the varistor 20 are respectively provided with the first electrode 201 and the second electrode, the middle of the varistor 20 is provided with the third electrode, the first electrode 201, the second electrode and the third electrode are respectively provided with the first welding pin 2011, the second welding pin and the third welding pin in an extending manner, and the arrangement of the welding pins enables the varistor 20 to be welded and assembled with the safety sheet, the movable pin 30 and the fixed pin 40, so that the surge protector is communicated.

In this embodiment, second welding plate 1031 is arranged in to first welding foot 2011, and first welding plate 1011 is arranged in to second welding foot, and all adopts low temperature soldering tin to connect fixedly, third welding foot adopts high temperature soldering tin to connect and assembles in insurance policy main part 10 through the joint mode earlier in fixed participating in 40, first welding foot 2011 and second welding foot, adopts the mode of low temperature soldering tin to weld the accessory after the assembly is accomplished, connects more firmly, and stability can be higher to can bear bigger impulse current.

The working principle is as follows: after the varistor 20 is degraded after long-term use, temperature rise is generated and is transmitted to the first welding pin 2011 and the second welding pin through the first electrode 201 and the second electrode, and is continuously transmitted to the safety piece main body 10 until low-temperature soldering tin in welding grooves of the second welding plate 1031, the first welding plate 1011 and the third welding plate 1021 is melted, the movable push rod 50 drives the safety piece to be separated from the first welding pin 2011 of the first electrode 201 of the varistor 20 and the second welding pin of the second electrode and the movable pin 30 to move in a direction away from the safety piece under the action of the compression spring 60, and finally, the electrical connection between the varistor 20 and the movable pin 30 is disconnected, so that the circuit safety is ensured.

The above description is for further details of the present invention, and it is not assumed that the embodiments of the present invention are limited to these descriptions, and it is obvious to those skilled in the art that the present invention can be implemented by a plurality of simple deductions or replacements without departing from the concept of the present invention, and all should be considered as belonging to the protection scope defined by the claims submitted by the present invention.

Claims

1. A safety sheet of a surge protector is provided,

the method is characterized in that:

including rupture disc main part (10), rupture disc main part (10) are provided with first vertical curb plate (101), vertical curb plate of second (103) and roof (102), and wherein first vertical curb plate (101) and the vertical curb plate of second (103) bend upwards relatively and form roof (102), one side of first vertical curb plate (101) and the vertical curb plate of second (103) upwards extends respectively and relative rupture disc main part (10) bend outwards and form first welding plate (1011) and second welding plate (1031), roof (102) one side upwards extends and relative rupture disc main part (10) bend outwards and form third welding plate (1021).

2. A surge protector rupture disc as defined in claim 1, wherein: the safety disc main body (10) is of a convex structure.

3. A surge protector rupture disc as defined in claim 1, wherein: form the welding groove that corresponds between first welding plate (1011), second welding plate (1031) and third welding plate (1021) and rupture disc main part (10), wherein the welding inslot of third welding plate (1021) is provided with movable pin (30), be provided with first welding foot (2011) and the second welding foot of piezo-resistor (20) in the welding inslot of first welding plate (1011) and second welding plate (1031).

4. A surge protector rupture disc according to claim 3, wherein: piezo-resistor (20) both sides are provided with first electrode (201) and second electrode respectively, and piezo-resistor (20) middle part is provided with the third electrode, first electrode (201), second electrode and third electrode extend respectively and are provided with first welding foot (2011), second welding foot and third welding foot.

5. A surge protector rupture disc as defined in claim 4, wherein: second welded plate (1031) are arranged in to first welded foot (2011), and first welded plate (1011) are arranged in to second welded foot, and all adopt low temperature soldering tin to connect fixedly, third welded foot adopts high temperature soldering tin to connect in fixed participating in (40).