CN207038447U - A kind of electrothermal relay with automatic protection - Google Patents

A kind of electrothermal relay with automatic protection Download PDF

Info

Publication number
CN207038447U
CN207038447U CN201720661653.3U CN201720661653U CN207038447U CN 207038447 U CN207038447 U CN 207038447U CN 201720661653 U CN201720661653 U CN 201720661653U CN 207038447 U CN207038447 U CN 207038447U
Authority
CN
China
Prior art keywords
sensing
temperature
automatic protection
electrothermal relay
projection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201720661653.3U
Other languages
Chinese (zh)
Inventor
丁建中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUXI FIF ELECTRIC CO Ltd
Original Assignee
WUXI FIF ELECTRIC CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WUXI FIF ELECTRIC CO Ltd filed Critical WUXI FIF ELECTRIC CO Ltd
Priority to CN201720661653.3U priority Critical patent/CN207038447U/en
Application granted granted Critical
Publication of CN207038447U publication Critical patent/CN207038447U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

It the utility model is related to the technical field of relay, more particularly to a kind of electrothermal relay with automatic protection.This electrothermal relay with automatic protection includes insulating bar; the left side of insulating bar is provided with bimetal leaf; the right side of the insulating bar is provided with temperature-sensing element; temperature-sensing element connects lever; the temperature-sensing element is provided with cam support; the left side of temperature-sensing element is provided with manual reset button, and moving contact and static contact are additionally provided with temperature-sensing element.The structure of this electrothermal relay with automatic protection is simple, and motor can be protected.

Description

A kind of electrothermal relay with automatic protection
Technical field
The utility model belongs to the technical field of relay, more particularly to a kind of electrothermal relay with automatic protection.
Background technology
Electrothermal relay is the relay to be circulated according to the temperature change of control object come control electric current, is to utilize electric current Fuel factor and the electrical equipment acted.It is mainly used to protect the overload of motor.It is not allow more than specified temperature rise during electric motor operation , it otherwise can reduce life-span of motor.
Fuse and overcurrent relay, which can only protect motor to be no more than, allows maximum current, it is impossible to reflects motor Heat condition.Motor short-time overload is allowed, but motor will generate heat during long-term overload, it is necessary to is entered using electrothermal relay Row protection.
Utility model content
It is allowed for motor short-time overload existing for solution prior art, but motor will be sent out during long-term overload Heat, it is necessary to protection defect is carried out using electrothermal relay, the utility model provides the electrothermal relay with automatic protection.
In order to overcome defect present in background technology, the utility model solves technical scheme used by its technical problem It is:A kind of electrothermal relay with automatic protection, including insulating bar 5, it is raised and that the left side of the insulating bar 5 is provided with first Two is raised, is provided with the bimetal leaf 4 with thermal element 3 between first projection and the second projection, the right side of the insulating bar 5 is set There is the 3rd projection, the described 3rd raised top is provided with U-shaped temperature-sensing element 11, and the middle part of U-shaped temperature-sensing element 11 is provided with convex Support 2 is taken turns, the side of U-shaped temperature-sensing element 11 1 is provided with moving contact 6 and static contact 7,11 another side of U-shaped temperature-sensing element Abutted with the described 3rd projection.
Further, the upside of U-shaped temperature-sensing element 11 is provided with right side and is additionally provided with for adjusting the position of moving contact 6 Adjusting knob 1.
Further, a lever 9 is also included, described one end of lever 9 is connected by spring 1 with the cam support 2, The other end of lever 9 is provided with manual reset button 12.
Further, the right side of the temperature-sensing element 11 is additionally provided with spring 2 10.
The beneficial effects of the utility model are:The structure of this electrothermal relay with automatic protection is simple, can be to electricity Motivation is protected.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is structural representation of the present utility model;
Wherein:1st, adjusting knob, 2, cam support, 3, thermal element, 4, bimetal leaf, 5, insulating bar, 6, moving contact, 7, quiet Contact, 8, spring one, 9, lever, 10, spring two, 11, temperature-sensing element, 12, manual reset button.
Embodiment
Fig. 1 is structural representation of the present utility model, a kind of electrothermal relay with automatic protection, including insulating bar 5, institute The left side for stating insulating bar 5 is provided with first raised and the second projection, and it is first to be provided with band heat between first projection and the second projection The bimetal leaf 4 of part 3, the right side of the insulating bar 5 are provided with the 3rd projection, and the described 3rd raised top is provided with U-shaped temperature-sensitive member Part 11, the middle part of U-shaped temperature-sensing element 11 are provided with cam support 2, and the side of U-shaped temperature-sensing element 11 1 is provided with moving contact 6 With static contact 7,11 another side of U-shaped temperature-sensing element abuts with the described 3rd projection.Further, the U-shaped temperature-sensitive member The adjusting knob 1 for adjusting the position of moving contact 6 is additionally provided with the right side of being provided with the upside of part 11.Further, one is also included Lever 9, described one end of lever 9 are connected by spring 1 with the cam support 2, and the other end of lever 9 is provided with multiple manually Position button 12.Further, the right side of the temperature-sensing element 11 is additionally provided with spring 2 10.
Overall structure is simple, when electromotor overload, bimetal leaf 4 is expanded to the left by the electric current of heater element, double Sheet metal 4 promotes temperature-sensing element 11, and the one end of temperature-sensing element 11 rotates clockwise to left dislocation, and around fulcrum A, so that The moving contact 6 of the other end of temperature-sensing element 11 disconnects static contact 7, and final motor is protected.Wherein, manually SR 12, which push lever 9, drives spring 1 to pull temperature-sensing element 11 to drive movable contact 6 to reset along fulcrum A counterclockwise rotates.
The structure of this electrothermal relay with automatic protection is simple, and motor can be protected.

Claims (4)

1. a kind of electrothermal relay with automatic protection, including insulating bar (5), it is characterised in that:The left side of the insulating bar (5) First raised and the second projection is provided with, the bimetal leaf with thermal element (3) is provided between first projection and the second projection (4), the right side of the insulating bar (5) is provided with the 3rd projection, and the described 3rd raised top is provided with U-shaped temperature-sensing element (11), institute State and be provided with cam support (2) in the middle part of U-shaped temperature-sensing element (11), the side of U-shaped temperature-sensing element (11) one is provided with moving contact (6) With static contact (7), another side of the U-shaped temperature-sensing element (11) abuts with the described 3rd projection.
2. the electrothermal relay of automatic protection is carried as claimed in claim 1, it is characterised in that the U-shaped temperature-sensing element (11) Upside is provided with right side and is additionally provided with the adjusting knob (1) for being used for adjusting moving contact (6) position.
3. the electrothermal relay of automatic protection is carried as claimed in claim 1, it is characterised in that also include a lever (9), institute State lever (9) one end to be connected with the cam support (2) by spring one (8), lever (9) other end is provided with multiple manually Position button (12).
4. the electrothermal relay of automatic protection is carried as claimed in claim 1, it is characterised in that:The right side of the temperature-sensing element (11) Side is additionally provided with spring two (10).
CN201720661653.3U 2017-06-08 2017-06-08 A kind of electrothermal relay with automatic protection Active CN207038447U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720661653.3U CN207038447U (en) 2017-06-08 2017-06-08 A kind of electrothermal relay with automatic protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720661653.3U CN207038447U (en) 2017-06-08 2017-06-08 A kind of electrothermal relay with automatic protection

Publications (1)

Publication Number Publication Date
CN207038447U true CN207038447U (en) 2018-02-23

Family

ID=61470849

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720661653.3U Active CN207038447U (en) 2017-06-08 2017-06-08 A kind of electrothermal relay with automatic protection

Country Status (1)

Country Link
CN (1) CN207038447U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107204260A (en) * 2017-06-08 2017-09-26 无锡市飞沪科技有限公司 A kind of electrothermal relay with automatic protection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107204260A (en) * 2017-06-08 2017-09-26 无锡市飞沪科技有限公司 A kind of electrothermal relay with automatic protection

Similar Documents

Publication Publication Date Title
CN203325801U (en) Thermistor-based deenergizing, cooling and resetting type temperature controller
CN207038447U (en) A kind of electrothermal relay with automatic protection
CN103871778A (en) Application of memory alloy to overload release
CN104078276B (en) A kind of temperature conditioning unit based on marmem
CN202102964U (en) Outage delay overheat protector
CN203481139U (en) Over-heating and over-current time-delay resetting protector
CN103985598A (en) Two-path output manual outage reset temperature controlled switch
CN203103223U (en) Novel kick type temperature controller
CN203799960U (en) Temperature controllable protective tube
CN204332830U (en) The reset bimetallic temperature controller that a kind of high temperature resistant sensitivity is adjustable
CN204516710U (en) Overcurrent, overload, overheat protector
CN205542658U (en) Supply thermal electrical relay
CN101339863A (en) PTC ceramic heat protector
CN203503552U (en) Electromagnetic electrothermal relay
CN203503565U (en) Electrothermal relay
CN103383903A (en) Dry-burning-resistant temperature-sensitive switch for electric heating device
CN107204260A (en) A kind of electrothermal relay with automatic protection
CN203839282U (en) Two output type manual power interruption reset temperature controlled switch
CN202034304U (en) Active time delay temperature control switch
CN204467795U (en) Electrical heating water boiler
CN202257305U (en) Inserted type temperature control device
CN205069544U (en) Thermal element mechanism of circuit breaker
CN201708088U (en) Dry burning preventive temperature controller for electric kettle
CN203910714U (en) Load protection device capable of transient quick-tripping in the case of overtemperature and overload
CN205248189U (en) Temperature controller with temperature and electric current protect function

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant