CN216624167U

CN216624167U - Double-cavity compact surge protector

Info

Publication number: CN216624167U
Application number: CN202123049334.2U
Authority: CN
Inventors: 石春洪
Original assignee: Foshan Fatai Lightning Protection Technology Co ltd
Current assignee: Foshan Fatai Lightning Protection Technology Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-05-27
Anticipated expiration: 2031-12-06

Abstract

The utility model provides a double-cavity compact surge protector which comprises a base and a surge protection device, wherein the surge protection device comprises a shell and two groups of tripping devices, the shell is provided with two cavities, the two groups of tripping devices are respectively arranged in the two cavities, and each tripping device comprises a pin, a chip assembly, a movable connecting strip, a tripping piece, an indicating piece and a spring; participate in set up on the casing and with the perforation cooperation on the base, each cavity has mounting groove and spout, the chip subassembly sets up in the mounting groove, the spring sets up in the spout, the indicator sets up in the spout and compression spring, take off the fastener and connect on the indicator, wherein take off the fastener and be connected with the chip subassembly through a welding point, take off the fastener and be connected with participating in through movable connecting strip, when the chip subassembly became invalid and generate heat and reach the melting point of this welding point, utilize the spring, take off the fastener and be connected inefficacy between the chip subassembly, and the indicator action is in order to lose efficacy and show. The utility model has the advantages of simple tripping structure and convenient installation.

Description

Double-cavity compact surge protector

Technical Field

The utility model belongs to the technical field of surge protectors, and particularly relates to a double-cavity compact surge protector.

Background

The power surge protector is widely used in a power line, can effectively restrain surge, and can reduce equipment damage caused by the surge in the power line to the maximum extent.

Chinese patent 202021552648.7 discloses a surge protector dropout structure and surge protector, including the drain pan, the inside of drain pan is equipped with the chamber wall, the left side on chamber wall is equipped with piezo-resistor, the last piezo-resistor electrode that is equipped with of piezo-resistor, piezo-resistor's top is equipped with first electrical connection pin, one side of piezo-resistor is equipped with the working of plastics that breaks away from.

Chinese patent 202021330907.1 discloses a compact structure's release and surge protector, the release includes the pivot, the dropout shell fragment, power spring and alarm, alarm has normal state position and alarm position, one end of dropout shell fragment articulates on the pivot, pass through flexible conductor connection between one end of this dropout shell fragment and the input electrode, weld through low melting point material between another end of dropout shell fragment and the lightning protection module electrode, power spring's one end is connected on the dropout shell fragment, power spring's the other end is fixed relative to the pivot, wherein, the dropout shell fragment after the dropout can rotate and the butt on alarm under power spring's drive, make alarm switch to alarm position by normal state position.

The existing double-cavity surge protector has the defects of more tripping structural parts, complex structure and time-consuming installation, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a double-cavity compact surge protector which has the advantages of simple tripping structure, convenience in installation, safety and reliability.

In order to achieve the purpose, the utility model provides a double-cavity compact surge protector which comprises a base and a surge protection device connected with the base in a plugging manner, wherein the surge protection device comprises a shell and two groups of tripping devices, the shell is provided with two bilaterally symmetrical cavities, the two groups of tripping devices are respectively arranged in the two cavities, and each tripping device comprises a pin, a chip assembly, a movable connecting strip, a tripping piece, an indicating piece and a spring; participate in set up on the casing and with the perforation cooperation on the base, each cavity has mounting groove and spout at least, the chip subassembly sets up in the mounting groove, the spring sets up in the spout, the indicator sets up in the spout and compression spring, the release piece is connected on the indicator, wherein the release piece is connected with the chip subassembly through a welding point, the release piece passes through movable connecting strip and participates in the connection, when the chip subassembly became invalid and generate heat and reach the melting point of this welding point, utilize the spring, the connection between release piece and the chip subassembly became invalid, and the indicator action is in order to lose efficacy and show.

In another embodiment of the present invention, the movable connecting strip is a copper braided strip.

As another specific embodiment of the utility model, a central rod is arranged in the indicating piece along the sliding direction of the indicating piece, and a spring is sleeved on the central rod.

In a further embodiment of the utility model, the central rod protrudes from the housing, wherein a through-hole is provided in the base, through which the central rod can pass.

As another specific embodiment of the present invention, the releasing member has at least a first direction engaging portion and a second direction engaging portion, the indicating member has a first direction engaging groove and a second direction engaging groove, the first direction engaging portion is connected to the first direction engaging groove, and the second direction engaging portion is connected to the second direction engaging groove.

In another embodiment of the present invention, the housing is provided with a window for displaying the indicator.

The utility model has the following beneficial effects:

the tripping device has the advantages of simple structure and convenience in installation, the tripping element and the indicating piece adopt a sliding mode in a compact space, quick response is more convenient to realize, when a chip assembly fails and generates heat to reach the melting point of a welding point, the connection between the tripping element and the chip assembly fails by utilizing the restoring force of the spring, so that the protection effect is achieved, the indicating piece acts to display failure, the reliability of the whole tripping device is higher, the safety is better, and compared with the existing product, the pulse resistance electrical property cannot be influenced.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of a surge protector of embodiment 1 of the present invention;

fig. 2 is an exploded schematic view of a surge protector according to embodiment 1 of the present invention;

fig. 3 is a schematic structural diagram of the trip device according to embodiment 1 of the utility model, which shows a schematic view of a normal state of the trip device in one of the chambers;

fig. 4 is a schematic structural diagram of the trip device of embodiment 1 of the utility model, which shows a schematic failure state of the trip device in one of the chambers;

fig. 5 is a schematic view of the engagement of the release member with the indicator according to example 1 of the present invention.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

Example 1

The embodiment provides a dual-cavity compact surge protector, as shown in fig. 1 to 4, which includes a base 100 and a surge protection device 200 connected to the base 100 in a plugging manner, wherein the surge protection device 200 includes a housing 210 and two sets of trip devices 220, the housing 210 has two chambers 211 that are symmetrical left and right, and the two sets of trip devices 220 are respectively disposed in the two chambers 211.

The trip device 220 comprises a pin 221, a chip assembly 222, a movable connecting bar 223, a trip piece 224, an indicator 225 and a spring 226;

the pins 221 are disposed on the housing 210 and engaged with the through holes 101 of the base 100, each cavity 211 at least has a mounting groove 212 and a sliding groove 213, the chip assembly 222 is disposed in the mounting groove 212, the spring 226 is disposed in the sliding groove 213, the indicator 225 is disposed in the sliding groove 213 and compresses the spring 226, the release element 224 is connected to the indicator 225, wherein the release element 224 is connected to the chip assembly 222 through a welding point 227, the release element 224 is connected to the pins 221 through the movable connecting strip 223, when the chip assembly 222 fails and generates heat to reach the melting point of the welding point 227, the connection between the release element 224 and the chip assembly 222 is failed by the spring 226, and the indicator 225 is activated to display the failure.

Specifically, the housing 210 is provided with a window 214 for displaying the indicator 225, and the indicator 225 can be disabled and displayed on the window 214 for warning after being activated.

More specifically, the movable connecting strip 223 in this embodiment is a copper woven tape, which can be movably matched while achieving electrical conductivity.

Further, a center rod 2251 is disposed in the indicator 225 along the sliding direction thereof, the spring 226 is sleeved on the center rod 2251, wherein the center rod 2251 protrudes from the housing 210, wherein a through hole 102 is disposed on the base 100, and the center rod 2251 can pass through the through hole 102, as shown in fig. 2.

One specific matching relationship between the release element 224 and the indicator 225 in this embodiment is, as shown in fig. 5, the release element 224 at least has a first direction latch 2241 and a second direction latch 2242, the indicator 225 has a first direction slot 2251 and a second direction slot 2252, the first direction latch 2241 is connected to the first direction slot 2251, and the second direction latch 2242 is connected to the second direction slot 2252.

In the embodiment, the release element 224 and the indicating element 225 are slid in a compact space, so that quick response is more conveniently realized, wherein when the chip assembly 222 fails and generates heat to reach the melting point of the welding point 227, the connection between the release element 224 and the chip assembly 222 fails, the indicating element 225 acts (as shown in fig. 4) by utilizing the restoring force of the spring 226, so that the protection effect is realized, and the indicating element 225 displays failure, so that the whole device is simple in structure and convenient to mount.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that changes may be made without departing from the scope of the utility model, and it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Claims

1. A double-cavity compact surge protector comprises a base and a surge protection device connected with the base in a plugging and unplugging manner, and is characterized in that the surge protection device comprises a shell and two groups of tripping devices, wherein the shell is provided with two bilaterally symmetrical cavities, the two groups of tripping devices are respectively arranged in the two cavities, and each tripping device comprises a pin, a chip assembly, a movable connecting strip, a tripping piece, an indicating piece and a spring; the pin is arranged on the shell and matched with the through hole on the base, each cavity is at least provided with a mounting groove and a sliding groove, the chip component is arranged in the mounting groove, the spring is arranged in the sliding groove, the indicating piece is arranged in the sliding groove and compresses the spring, the release piece is connected to the indicating piece, the release piece is connected with the chip component through a welding point, the release piece is connected with the pin through the movable connecting strip, when the chip component fails and generates heat to reach the melting point of the welding point, the spring is utilized, the connection between the release piece and the chip component fails, and the indicating piece acts to display the failure.

2. The dual chamber compact surge protector of claim 1 wherein said movable connecting strip is a copper braid.

3. The dual chamber compact surge protector of claim 1, wherein said indicator member has a center rod disposed therein in a sliding direction thereof, and said spring is fitted over said center rod.

4. The dual chamber compact surge protector of claim 3, wherein said center rod protrudes from said housing, and wherein a through hole is provided in said base through which said center rod can pass.

5. The dual-chamber compact surge protector of claim 1, wherein said release member has at least a first directional catch and a second directional catch, and said indicator member has a first directional catch and a second directional catch, said first directional catch is engaged with said first directional catch, and said second directional catch is engaged with said second directional catch.

6. The dual chamber compact surge protector of claim 1 wherein said housing defines a window for displaying said indicator.