CN212648132U

CN212648132U - An over-temperature and over-current protection device

Info

Publication number: CN212648132U
Application number: CN202021929963.7U
Authority: CN
Inventors: 朱继兵
Original assignee: Dongguan Hongda Electronic Technology Co ltd
Current assignee: Dongguan Hongda Electronic Technology Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-03-02
Anticipated expiration: 2030-09-07

Abstract

The utility model relates to the technical field of household electrical appliances, in particular to an over-temperature and over-current protection device, comprising an over-temperature and over-current protector body, wherein an epoxy resin layer is fixedly connected to the inside of the over-temperature and over-current protector body. A current input end is inserted inside the epoxy resin layer. The current input end includes a first conductive sheet, a static contact sheet and a plastic plug. The first conductive sheet is fixedly connected to one end of the current input end. One end of the first conductive sheet is fixedly connected with a static contact sheet, and the first conductive sheet is inserted into the inside of the plastic plug. The utility model is provided with a temperature-sensing sheet, the temperature-sensing sheet will be disconnected from the second conductive sheet whose temperature is too high, so that the household appliances are powered off and stopped running, and the over-temperature protection is effectively realized. When the current is too large, the movable contactor is disconnected from the static contact piece, so that the household appliance is powered off and stops running, effectively realizing overcurrent protection.

Description

Over-temperature and over-current protection device

Technical Field

The utility model relates to a household electrical appliances technical field specifically is an excess temperature overcurrent protection device.

Background

Domestic appliance is indispensable in people's life, and domestic appliance can lead to damaging because of the high temperature or the electric current is too big, need use an excess temperature overcurrent protection device from this, protects domestic appliance.

The conventional household appliances are too hot and easy to damage after being used for a long time, and the conventional household appliances lack an over-temperature protection device, and the conventional household appliances are also damaged when the use current is too large due to the lack of the over-current protection device, so that an over-temperature over-current protection device is urgently needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an excess temperature overcurrent protection device to the problem that lacks excess temperature protection device and lacks overcurrent protection device who proposes in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an over-temperature and over-current protection device comprises an over-temperature and over-current protector body, wherein an epoxy resin layer is fixedly connected inside the over-temperature and over-current protector body, a current input end is inserted into the epoxy resin layer and comprises a first conducting strip, a fixed contact piece and a plastic plug block, the first conducting strip is fixedly connected to one end of the current input end, one end of the first conducting strip is fixedly connected with the fixed contact piece, the first conducting strip is inserted into the plastic plug block, one end of the fixed contact piece is electrically connected with a movable contact, the movable contact comprises a movable contact piece, the movable contact piece is fixedly connected to one side of the movable contact, a conductive column is fixedly connected to one side of the movable contact piece, the temperature sensing piece comprises a temperature sensing piece and a limiting baffle, the temperature sensing piece is fixedly connected to the surface of the conductive column, and one end of the conductive column is fixedly connected with the limiting baffle, the one end fixedly connected with base of leading electrical pillar, the base includes second conducting strip and current output end, second conducting strip fixed connection is in the one end of base, the one end fixedly connected with current output end of second conducting strip.

Preferably, the circular port has been seted up to epoxy layer's inside, and the inside circular port of epoxy layer is connected with current input end through the block.

Preferably, the current input end is electrically connected with a first conducting strip.

Preferably, the first conducting strip is electrically connected with a static contact piece.

Preferably, the plastic plug block is connected with a static contact piece through a clamping manner.

Preferably, a conductive column is connected to one side of the movable spring plate by means of clamping.

Preferably, the conductive post is connected to a temperature sensing piece by means of a snap fit.

Compared with the prior art, the beneficial effects of the utility model are that: this excess temperature overcurrent protection device is provided with the temperature sensing piece, and the temperature sensing piece can make domestic appliance outage bring to rest with the second conducting strip disconnection that the temperature is too high, effectively realizes the excess temperature protection, through installing the movable contact, through movable contact stationary contact piece, when the electric current is too big, movable contact and stationary contact piece disconnection make domestic appliance outage bring to rest, effectively realize overcurrent protection.

(1) This excess temperature overcurrent protection device is provided with the temperature sensing piece, takes place deformation behind the too high second conducting strip of temperature sensing piece contact temperature, upwards lifts up, with moving contact ware and stationary contact piece disconnection to make domestic appliance outage shutdown, effectively realize excess temperature protection.

(2) The device is through installing the movable contact in excess temperature overcurrent protector body is inside, through movable contact stationary contact piece, when the electric current was too big, movable contact and stationary contact piece disconnection made domestic appliance outage stop motion, effectively realized overcurrent protection.

Drawings

FIG. 1 is a schematic view of the present invention in a fully-opened state;

FIG. 2 is a schematic view of the utility model in a broken state;

FIG. 3 is a schematic top view of the structure of the present invention;

fig. 4 is a schematic structural side view of the present invention.

In the figure: 1. an over-temperature and over-current protector body; 2. an epoxy resin layer; 3. a current input terminal; 301. a first conductive sheet; 302. a stationary contact sheet; 303. a plastic plug block; 4. a movable contact; 401. a movable spring plate; 5. a conductive post; 501. a temperature sensing tablet; 502. a limit baffle; 6. a base; 601. a second conductive sheet; 602. and a current output terminal.

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 embodiments are only some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1-4, the present invention provides an embodiment: the over-temperature and over-current protector comprises an over-temperature and over-current protector body 1, wherein an epoxy resin layer 2 is fixedly connected inside the over-temperature and over-current protector body 1, a circular hole is formed inside the epoxy resin layer 2, the circular hole inside the epoxy resin layer 2 is connected with a current input end 3 through a clamping manner, the current input end 3 is electrically connected with a first conducting strip 301, the structure can facilitate the static contact piece 302 to be electrified by utilizing the first conducting strip 301, the structure can facilitate the current input end 3 to be fixed, the current input end 3 is inserted in the epoxy resin layer 2, the current input end 3 comprises the first conducting strip 301, the static contact piece 302 and a plastic plug block 303, the first conducting strip 301 is fixedly connected to one end of the current input end 3, the first conducting strip 301 is electrically connected with the static contact piece 302, and the structure can facilitate the static contact piece 302 to be in, one end fixedly connected with stationary contact piece 302 of first conducting strip 301, first conducting strip 301 insert and establish the inside of plastic chock 303, and plastic chock 303 is connected with stationary contact piece 302 through the block, and such structure can be convenient for fixed stationary contact piece.

One end of the fixed contact piece 302 is electrically connected with a movable contact 4, the movable contact 4 comprises a movable contact strip 401, the movable contact strip 401 is fixedly connected with one side of the movable contact 4, one side of the movable contact strip 401 is connected with a conductive column 5 through clamping, the structure can facilitate the conductive column 5 to make the second conductive sheet 601 in a charged state, one side of the movable reed 401 is fixedly connected with the conductive column 5, the conductive column 5 comprises a temperature sensing piece 501 and a limit baffle 502, the temperature sensing piece 501 is fixedly connected to the surface of the conductive column 5, the conductive column 5 is connected with the temperature sensing piece 501 through clamping, such structure can be convenient for fixed temperature sensing piece 501, leads the one end fixedly connected with limit baffle 502 of electrical pillar 5, leads the one end fixedly connected with base 6 of electrical pillar 5, and base 6 includes second conducting strip 601 and current output end 602, and second conducting strip 601 fixed connection is in the one end of base 6, and the one end fixedly connected with current output end 602 of second conducting strip 601.

The working principle is as follows: when using domestic appliance high temperature for a long time, the heat can be transmitted to second conducting strip 601 through epoxy layer 2 on, and the temperature sensing piece 501 of protruding part contact in the middle of the second conducting strip 601 can be heated and take place deformation, makes the perk that makes progress in temperature sensing piece 501 left side with movable contact spring 401 jack-up,

movable contact

4 and 4 disconnection of stationary contact piece this moment, the current disconnection for domestic appliance outage stop work, thereby effectual realization overtemperature prote.

According to the attached drawing 1, when the current used by the household appliance is too large, the current is input from the current input end 3, the first conducting strip 301 is electrified when the current input end 3 is in a meeting state, and meanwhile, the static contact piece 302 is electrified, and at the moment, the movable contact 4 is disconnected from the static contact piece 302 due to the fact that the current is too large, so that the household appliance is powered off and stops working, and overcurrent protection is effectively achieved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An over-temperature and over-current protection device, comprising an over-temperature and over-current protector body (1), characterized in that: an epoxy resin layer (2) is fixedly connected to the inside of the over-temperature and over-current protector body (1). ), a current input end (3) is inserted inside the epoxy resin layer (2), and the current input end (3) includes a first conductive sheet (301), a static contact sheet (302) and a plastic plug block (303), the first conductive sheet (301) is fixedly connected to one end of the current input terminal (3), and one end of the first conductive sheet (301) is fixedly connected to a static contact sheet (302), the The first conductive sheet (301) is inserted into the inside of the plastic plug (303), and one end of the static contact sheet (302) is electrically connected with a movable contact device (4), and the movable contact device (4) ) includes a moving reed (401), the moving reed (401) is fixedly connected to one side of the moving contactor (4), and a conductive post (5) is fixedly connected to one side of the moving reed (401). , the conductive column (5) includes a temperature sensing sheet (501) and a limit baffle plate (502), the temperature sensing sheet (501) is fixedly connected to the surface of the conductive column (5), and the conductive column (5) One end of the conductive column (5) is fixedly connected to a limiting baffle (502), and one end of the conductive column (5) is fixedly connected to a base (6), and the base (6) includes a second conductive sheet (601) and a current output end (602) , the second conductive sheet (601) is fixedly connected to one end of the base (6), and one end of the second conductive sheet (601) is fixedly connected to a current output terminal (602).

2 . The over-temperature and over-current protection device according to claim 1 , wherein a circular hole is opened inside the epoxy resin layer ( 2 ), and a circular hole inside the epoxy resin layer ( 2 ) is formed. 3 . The shaped hole is connected with a current input end (3) through snap-fit.

3 . The over-temperature and over-current protection device according to claim 1 , wherein the current input end ( 3 ) is electrically connected with a first conductive sheet ( 301 ). 4 .

4. The over-temperature and over-current protection device according to claim 1, wherein the first conductive sheet (301) is electrically connected with a static contact sheet (302).

5 . The over-temperature and over-current protection device according to claim 1 , wherein the plastic plug ( 303 ) is connected with a static contact piece ( 302 ) by snapping. 6 .

6 . The over-temperature and over-current protection device according to claim 1 , wherein a conductive post ( 5 ) is connected to one side of the movable reed ( 401 ) by engaging. 7 .

7 . The over-temperature and over-current protection device according to claim 1 , wherein: the conductive column ( 5 ) is connected with a temperature-sensitive sheet ( 501 ) by snapping. 8 .