CN211183412U

CN211183412U - 20kA photovoltaic PCB type power surge protector

Info

Publication number: CN211183412U
Application number: CN202020114960.1U
Authority: CN
Inventors: 曾子成; 许斯然; 刘学林; 王俊
Original assignee: Chengdu Pedaro Technology Co ltd
Current assignee: Chengdu Pedaro Technology Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-08-04
Anticipated expiration: 2030-01-17

Abstract

The utility model discloses a 20kA photovoltaic PCB type power surge protector, it includes the casing, pressure sensitive element, spring assembly and participate in four parts of subassembly, pressure sensitive element comprises a low temperature pin and a high temperature pin, the casing includes the shell, the inner shell, the slider constitutes, participate in the subassembly by participating in No. one, participate in No. two, participate in No. three and participate in No. four and constitute, be equipped with a beryllium copper sheet and a spacing inclined plane on participating in No. one, beryllium copper shell fragment and low temperature pin welding are in the same place as low temperature trip point, the slider is adorned in spacing inclined plane department, make the first elastic arm on its participating in and the second elastic arm on four participating in closely contact as remote signal conduction; the utility model has the advantages of stable performance, complete functions, simple structure and low production cost.

Description

20kA photovoltaic PCB type power surge protector

Technical Field

The utility model relates to an electron field, concretely relates to 20kA photovoltaic PCB type power surge protector.

Background

The surge protector is a protection device for providing safety protection for various electronic equipment, instruments and meters and communication lines, and can play a role in protection when an electric loop, a communication line or a PCB line is damaged by lightning attack or other instantaneous overvoltage.

At present, aiming at a 20kA photovoltaic PCB type power supply surge protector, the tripping function is realized by flexibly connecting a low-temperature pin and a tripping copper sheet through a copper braid, and a torsion spring springs a tripping mode of the tripping copper sheet after low-temperature tripping, so that potential performance hazards exist in tripping; and after tripping, no warning window is arranged, and whether the PCB type surge protector plays a protection role can not be visually seen. And the remote communication signal is connected with the copper sheet or the lead through the microswitch to form on-off, the current 20kA photovoltaic PCB type power supply surge protector has the disadvantages of complex structure and process, difficult assembly, more consumed working hours, higher material cost and hidden trouble of false alarm of the remote communication signal caused by the improper stroke action of the microswitch.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a 20kA photovoltaic PCB type power surge protector to solve the problem mentioned in the above-mentioned background art.

In order to solve the technical problem, the utility model provides a 20kA photovoltaic PCB type power surge protector, which comprises a shell, a pressure-sensitive element, a spring assembly and a pin assembly; one side of the pressure sensitive element is provided with a low-temperature pin, and the other side of the pressure sensitive element is provided with a high-temperature pin; the shell comprises an outer shell, an inner shell sleeved in the outer shell and a sliding block, wherein a first adhesive layer is arranged on the sliding block, and a second adhesive layer different from the first adhesive layer is arranged on the inner shell; the outer shell is provided with a warning window and a buckle and is arranged on the inner shell; the inner shell is provided with a cavity, the low-temperature pin and the high-temperature pin are assembled on the cavity, and the sliding block is assembled on one side of the inner shell, which is back to the cavity; the pin assembly comprises a first pin, a second pin, a third pin and a fourth pin; the first pin is arranged in the inner shell, one end of the first pin is connected with a beryllium copper sheet, a limiting inclined plane is arranged on the beryllium copper sheet, the sliding block is arranged on the limiting inclined plane, and the beryllium copper sheet and the low-temperature pin of the pressure-sensitive element are welded together to be used as a low-temperature tripping point; the second pin is arranged in the inner shell and is welded with the high-temperature pin of the pressure-sensitive element; the third pin is provided with a first elastic arm and is arranged in the inner shell, the fourth pin is provided with a second elastic arm and is arranged in the inner shell, and the first elastic arm and the second elastic arm are in close contact to form a remote signal channel.

Furthermore, a low-temperature pin hole is formed in the cavity, a high-temperature pin groove and a first pin groove are formed in the side surface of the cavity, a second pin groove is formed in the other side surface of the cavity, and a third pin groove, a fourth pin groove, a slider assembling groove, a first inner shell assembling column and a second inner shell assembling column are formed in the back surface of the cavity;

the low-temperature pin of the pressure sensitive element is arranged in the low-temperature pin hole, and the high-temperature pin of the pressure sensitive element is arranged in the high-temperature pin groove; the sliding block is provided with a first sliding block assembling column and a second sliding block assembling column and is arranged in the sliding block assembling groove of the inner shell; no. one participate in and pack into the pin groove No. one, and No. two participate in and pack into the pin groove No. two, are equipped with first elastic arm on No. three and are adorned in the pin groove No. three, are equipped with the second elastic arm on No. four and are adorned in the pin groove No. four.

Furthermore, the spring assembly comprises a first spring and a second spring, the first spring is provided with a first spring hook and a second spring hook, the first spring hook is arranged on the first assembly column of the inner shell, and the second spring hook is arranged on the first assembly column of the sliding block; the second spring is provided with a second spring first hook and a second spring second hook, the second spring first hook is arranged on the inner shell second assembling column, and the second spring second hook is arranged on the sliding block second assembling column.

Further, the slider is a high-strength insulating slider.

The utility model has the advantages that: according to the 20kA photovoltaic PCB type power surge protector, the beryllium copper sheet low-temperature welding point is cut off and separated to release through the pin I, so that the production process is simpler, the assembly is easier, the performance is more stable, the arc discharge hidden danger is eliminated through the separated release, and the release is more thorough.

And the first elastic arm and the second elastic arm are in close contact to form a remote signal path, and the first elastic arm and the second elastic arm are moved along with the sliding block after tripping at low temperature to break the sliding block to be used as a remote signal on-off mode.

Meanwhile, the first adhesive layer arranged on the inner shell is different from the second adhesive layer arranged on the sliding block, and the first adhesive layer and the second adhesive layer are used as warning distinction of a normal mode and a failure mode, so that the surge protector can be effectively and visually seen in a protection state.

Drawings

Fig. 1 is a schematic diagram showing the outline structure of a 20kA photovoltaic PCB type power surge protector;

fig. 2 is an exploded view schematically showing the internal structure of a 20kA photovoltaic PCB type power surge protector;

fig. 3 is a schematic diagram of an inner shell structure of a 20kA photovoltaic PCB type power surge protector;

fig. 4 is a schematic diagram showing the structure of power supply and remote signaling signal conduction of a 20kA photovoltaic PCB type power surge protector;

fig. 5 is a schematic diagram showing the structure of the power supply and remote signaling signal disconnection of the 20kA photovoltaic PCB type power surge protector;

wherein: 11. a pressure sensitive element; 111. a low temperature pin; 112. a high temperature pin; 21. an inner shell; 211. a cavity; 212. a low temperature pin hole; 213. a high temperature pin slot; 214. a first pin slot; 215. a second pin slot; 216. a third pin slot; 217. a fourth pin slot; 218. a slider assembly groove; 219. an inner housing first mounting post; 2110. an inner housing second mounting post; 22. a housing; 221. a warning window; 23. a slider; 231. A slider first mounting post; 232. a second assembly post of the slide block; 233. a first adhesive layer; 31. a first pin; 311. a beryllium copper sheet; 312. a limiting inclined plane; 32. a pin II; 33. a third pin; 331 a first resilient arm; 34. a fourth pin; 341 second resilient arm; 41. a first spring; 411. a first spring first hook; 411. a first spring and a second hook; 42. a second spring; 421. a second spring first hook; 422. no. two springs and second hooks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiment is only one embodiment of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail with reference to the accompanying drawings and specific embodiments. And for the sake of simplicity, the following omits the technical common sense known to those skilled in the art.

In the following description, references to "one embodiment," "an embodiment," "one example," "an example," etc., indicate that the embodiment or example so described may include a particular feature, structure, characteristic, property, element, or limitation, but every embodiment or example does not necessarily include the particular feature, structure, characteristic, property, element, or limitation. Moreover, repeated use of the phrase "in accordance with an embodiment of the present application" although it may possibly refer to the same embodiment, does not necessarily refer to the same embodiment.

As shown in fig. 1 to 5, the 20kA photovoltaic PCB type power surge protector includes a housing, a pressure sensitive element 11, a spring assembly and a pin assembly; a low temperature pin 111 is provided on one side of the pressure sensitive element 11 and a high temperature pin 112 is provided on the other side.

The shell comprises an outer shell 22, an inner shell 21 sleeved in the outer shell 22 and a sliding block 23, wherein the sliding block 23 is preferably a high-strength insulating sliding block 23. The slider 23 is provided with a first adhesive layer 233, and the inner shell 21 is provided with a second adhesive layer different from the first adhesive layer 233; specifically, the exterior pattern on the first sticker 233 and the exterior pattern on the second sticker may be provided as two patterns that are very different, and of course, the colors of the first sticker 233 and the second sticker may also be provided differently.

In specific implementation, different adhesive layers between the inner shell 21 and the sliding block 23 can be used as warning distinction between a normal mode and a failure mode, and the effect of effectively and visually seeing the protection state of the surge protector is achieved.

The outer shell 22 is provided with a warning window 221 and a buckle and is arranged on the inner shell 21; a cavity 211 is arranged on the inner shell 21, the low-temperature pins 111 and the high-temperature pins 112 are assembled on the cavity 211, and the sliding block 23 is assembled on one side of the inner shell 21, which is back to the cavity 211; the pin assembly includes pin number one 31, pin number two 32, pin number three 33, and pin number four 34.

The first pin 31 is arranged in the inner shell 21, one end of the first pin 31 is connected with a beryllium copper sheet 311, a limiting inclined plane 312 is arranged on the beryllium copper sheet 311, the sliding block 23 is arranged on the limiting inclined plane 312, and the beryllium copper sheet 311 and the low-temperature pin 111 of the pressure-sensitive element 11 are welded together to be used as a low-temperature tripping point.

In actual operation, the low-temperature welding point of the beryllium copper sheet 311 of the first pin 31 is cut off and separated to release, so that the production process is simpler, the assembly is easier, the performance is more stable, the separated release eliminates the hidden arc discharge danger, and the release is more thorough.

The second pin 32 is arranged in the inner shell 21 and is welded with the high-temperature pin 112 of the pressure sensitive element 11; the third pin 33 is provided with a first elastic arm 331 and is installed in the inner shell 21, the fourth pin 34 is provided with a second elastic arm 341 and is installed in the inner shell 21, and the first elastic arm 331 and the second elastic arm 341 are in close contact to form a remote signal path.

The design forms a remote signal channel by the close contact of the first elastic arm 331 and the second elastic arm 341, and the first elastic arm 331 and the second elastic arm 341 break off as a remote signal on-off mode along with the movement of the sliding block 23 after low-temperature tripping.

Specifically, a low-temperature pin hole 212 is formed in the cavity 211, a high-temperature pin groove 213 and a first pin groove 214 are formed in the side surface of the cavity 211, a second pin groove 215 is formed in the other side surface of the cavity 211, and a third pin groove 216, a fourth pin groove 217, a slider assembling groove 218, a first assembling column 219 of the inner shell and a second assembling column 2110 of the inner shell are formed in the back surface of the cavity 211.

The low-temperature pin 111 of the pressure sensitive element 11 is arranged in the low-temperature pin hole 212, and the high-temperature pin 112 of the pressure sensitive element 11 is arranged in the high-temperature pin groove 213; the slider 23 is provided with a first slider mounting post 231 and a second slider mounting post 232 and is fitted into the slider mounting groove 218 of the inner housing 21.

Pin number one 31 fits into pin number one slot 214, pin number two 32 fits into pin number two slot 215, pin number three 33 is provided with first resilient arm 331 and fits into pin number three slot 216, and pin number four 34 is provided with second resilient arm 341 and fits into pin number four slot 217.

The spring assembly comprises a first spring 41 and a second spring 42, the first spring 41 is provided with a first spring hook 411 and a second spring 41 hook, the first spring hook 411 is arranged on the first assembly column 219 of the inner shell, and the second spring 41 hook is arranged on the first assembly column 231 of the sliding block; no. two springs 42 are provided with a No. two first spring hooks 421 and a No. two second spring hooks 422, the No. two first spring hooks 421 are arranged on the inner shell second assembling column 2110, and the No. two second spring hooks 422 are arranged on the slider second assembling column 232.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A20 kA photovoltaic PCB type power surge protector comprises a shell, a pressure-sensitive element, a spring assembly and a pin assembly; the method is characterized in that: one side of the pressure sensitive element is provided with a low-temperature pin, and the other side of the pressure sensitive element is provided with a high-temperature pin; the shell comprises an outer shell, an inner shell sleeved in the outer shell and a sliding block, wherein a first adhesive layer is arranged on the sliding block, and a second adhesive layer different from the first adhesive layer is arranged on the inner shell; the outer shell is provided with a warning window and a buckle and is arranged on the inner shell; the inner shell is provided with a cavity, the low-temperature pin and the high-temperature pin are assembled on the cavity, and the sliding block is assembled on one side of the inner shell, which is back to the cavity;

the pin assembly comprises a first pin, a second pin, a third pin and a fourth pin; the first pin is arranged in the inner shell, one end of the first pin is connected with a beryllium copper sheet, a limiting inclined plane is arranged on the beryllium copper sheet, a sliding block is arranged on the limiting inclined plane, and the beryllium copper sheet and the low-temperature pin of the pressure-sensitive element are welded together to serve as a low-temperature tripping point; the second pin is arranged in the inner shell and welded with the high-temperature pin of the pressure-sensitive element; the third pin is provided with a first elastic arm and is arranged in the inner shell, the fourth pin is provided with a second elastic arm and is arranged in the inner shell, and the first elastic arm and the second elastic arm are in close contact to form a remote signal channel.

2. A 20kA photovoltaic PCB type power surge protector as claimed in claim 1, wherein: the cavity is internally provided with a low-temperature pin hole, the side surface of the cavity is provided with a high-temperature pin groove and a first pin groove, the other side surface of the cavity is provided with a second pin groove, and the back surface of the cavity is provided with a third pin groove, a fourth pin groove, a sliding block assembly groove, a first inner shell assembly column and a second inner shell assembly column;

the low-temperature pins of the pressure-sensitive element are arranged in the low-temperature pin holes, and the high-temperature pins of the pressure-sensitive element are arranged in the high-temperature pin grooves; the sliding block is provided with a first sliding block assembling column and a second sliding block assembling column and is arranged in the sliding block assembling groove of the inner shell; the first pin is arranged in the first pin groove, the second pin is arranged in the second pin groove, the third pin is provided with a first elastic arm and is arranged in the third pin groove, and the fourth pin is provided with a second elastic arm and is arranged in the fourth pin groove.

3. A 20kA photovoltaic PCB type power surge protector as claimed in claim 2, characterized in that: the spring assembly comprises a first spring and a second spring, the first spring is provided with a first spring hook and a second spring hook, the first spring hook is arranged on the first assembly column of the inner shell, and the second spring hook is arranged on the first assembly column of the sliding block; no. two springs are provided with a first spring hook and a second spring hook, the first spring hook is arranged on the second inner shell assembling column, and the second spring hook is arranged on the second slider assembling column.

4. A 20kA photovoltaic PCB type power surge protector as claimed in claim 1, wherein: the slider is a high-strength insulating slider.