CN214958672U

CN214958672U - Over-voltage and under-voltage protector

Info

Publication number: CN214958672U
Application number: CN202121718161.6U
Authority: CN
Inventors: 周建如
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-11-30
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses a cross undervoltage protection ware, including first casing, with the second casing that first casing joined in marriage the dress and set up the relay in the casing, the bottom of relay is equipped with the electrically conductive pin of erroneous tendency one side, the inboard bottom of first casing is equipped with and is used for preventing the cushion of electrically conductive pin and the contact of first casing bottom. The utility model discloses the base is being close to pin one side and is being equipped with the cushion, and highly being greater than pin length of cushion, prevents effectively that pin and base bottom surface direct contact from leading to the problem emergence that the temperature rise is too high.

Description

Over-voltage and under-voltage protector

Technical Field

The utility model relates to a technical field of technical protector, concretely relates to cross undervoltage protection ware.

Background

The overvoltage and undervoltage protector is a common electric appliance in the field of electric appliances, is often used in a circuit together with a circuit breaker, and is used for protecting overvoltage, undervoltage, phase failure and zero line failure in distribution lines of families and markets. When the over-voltage or under-voltage in the line exceeds the specified value, the circuit can be automatically opened, the voltage of the line can be automatically detected, and when the voltage in the line returns to normal, the circuit can be automatically closed.

Cross undervoltage protector and generally include base, control scheme board, indicator board circuit board, relay, current from the compound undervoltage protector relay of crossing is installed on the control panel, then install together with the base on, but do not set up isolating device between relay and the base, relay current pin contacts the base easily, causes the too high face of gluing of base bottom temperature rise to damage or the overheated wire that leads to of conductive pin to drop or contact failure damage scheduling problem even.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to solve the problem, the utility model provides a simple structure effectively prevents to lead electrical pin and base contact from retrying and crossing under-voltage protector.

(II) technical scheme

The utility model discloses a cross undervoltage protection ware, including first casing, with the second casing that first casing joined in marriage the dress and set up the relay in the casing, the bottom of relay is equipped with the electrically conductive pin of erroneous tendency one side, the inboard bottom of first casing is equipped with the cushion that is used for preventing electrically conductive pin and first casing bottom contact, still be equipped with the first circuit board of connecting the relay in first casing and the second casing, still be equipped with ann rule electric capacity and electrolytic capacitor on the first circuit board, first circuit board even has the second circuit board through the wire, the second circuit board sets up at second casing top inboard.

The utility model discloses in, the height of cushion is greater than the length of electrically conductive pin.

The utility model discloses in, the cushion setting is being close to electrically conductive pin one side.

(III) advantageous effects

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

(1) the utility model provides a base is being close to pin one side and is being equipped with the cushion, and highly being greater than pin length of cushion, effectively prevents that pin and base bottom surface direct contact from leading to the problem emergence that the temperature rise is too high to the disqualification rate of product has been reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic sectional view of a protector in an elevational view in accordance with example 1;

fig. 2 is a schematic view of a connection structure of a first circuit board and a second circuit board in embodiment 1;

fig. 3 is a schematic perspective view of a base in embodiment 1.

10. The circuit board comprises a first shell, 101, a cushion block, 20, a second shell, 30, a first circuit board, 301, a relay, 301a, conductive pins, 302, a safety capacitor, 303, an electrolytic capacitor, 40, terminals, 41, leads, 50 and a second circuit board.

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.

Example 1

As shown in fig. 1, the overvoltage and undervoltage protector includes a first casing 10, a second casing 20 assembled with the first casing 10, and a first circuit board 30 fixed to the second casing 20 by bolts, where the first circuit board 30 is a control circuit board of the protector, the first casing 10 is the first casing 10 of the protector, and the second casing 20 is an upper cover body matched with the first casing 10.

Further, the first circuit board 30 is welded with a relay 301, a safety capacitor 302 and two electrolytic capacitors 303, wherein the safety capacitor 302 is arranged above the relay 301, and the electrolytic capacitors 303 are arranged on two sides of the safety capacitor 302. A downwardly extending conductive pin 301a is provided at the bottom of the relay 301, to which the terminal 40 is connected through a wire 41.

As shown in fig. 1-2, the first circuit board 30 is further connected to a second circuit board 50 through a lead 41, and the second circuit board 50 is an indicator circuit board and is fixedly connected to an inner side portion of the top portion of the second housing 20.

As shown in fig. 1 and 3, a pad 101 is disposed at the bottom of the inner side of the first casing 10, the pad 101 is disposed between two conductive pins 301a of the relay 301, and the height of the pad 101 is greater than the length of the conductive pins 301a, so as to prevent the conductive pins 301a from directly contacting the bottom of the first casing 10 to damage the bottom of the protector due to overheating or prevent the conductive pins 301a from overheating to cause the lead 41 to fall off or contact failure or even damage.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. An over-voltage and under-voltage protector comprises a first shell (10), a second shell (20) matched with the first shell (10) and a relay (301) arranged in the shell,

the method is characterized in that:

the bottom of relay (301) is equipped with electrically conductive pin (301a) of erroneous tendency one side, the inboard bottom of first casing (10) is equipped with and is used for preventing electrically conductive pin (301a) and cushion (101) of first casing (10) bottom contact, still be equipped with first circuit board (30) of connecting relay (301) in first casing (10) and second casing (20), still be equipped with ann rule electric capacity (302) and electrolytic capacitor (303) on first circuit board (30), first circuit board (30) link through wire (41) has second circuit board (50), second circuit board (50) set up at second casing (20) top inboard.

2. An overvoltage and undervoltage protector according to claim 1, wherein: the height of the pad (101) is greater than the length of the conductive pin (301 a).

3. An overvoltage and undervoltage protector according to claim 1, wherein: the pad block (101) is arranged on one side close to the conductive pin (301 a).