CN208970432U - A kind of instantaneous seal temperature protector - Google Patents
A kind of instantaneous seal temperature protector Download PDFInfo
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- CN208970432U CN208970432U CN201821900908.8U CN201821900908U CN208970432U CN 208970432 U CN208970432 U CN 208970432U CN 201821900908 U CN201821900908 U CN 201821900908U CN 208970432 U CN208970432 U CN 208970432U
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- shell
- binding post
- movable contact
- contact spring
- column
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Abstract
The utility model relates to instantaneous seal temperature protector, the shell including sealing is fixed with the first binding post and the second binding post on shell, and the both ends of the first binding post and the second binding post are located in shell and outside shell；First binding post is located at the intracorporal one end of shell and is fixedly connected with static contact, and the intracorporal one end of shell that is located at of the second binding post is fixedly installed with the movable contact spring cooperated with static contact, is further fixed on column in shell, column is against the back side of movable contact spring；Third binding post is also fixedly installed in shell, the both ends of third binding post are located in shell and outside shell；Electrical heating elements, current-limiting resistance and posive temperature coefficient thermistor are installed in shell, electrical heating elements and current-limiting resistance connect to form heater circuit, posive temperature coefficient thermistor formation integrated circuit in parallel with heater circuit, one end of integrated circuit is connect with the first binding post, and the other end is connect with third binding post.Instantaneous seal temperature protector provided by the utility model, improves sensitivity.
Description
Technical field
The utility model relates to temperature to protect protector technical field, especially a kind of instantaneous seal temperature protector.
Background technique
Instantaneous seal temperature protector is the common protection element of circuit, is existing common one kind as shown in Figure 1
Instantaneous seal temperature protector, the shell 11 including sealing are fixed with the first binding post 12 and second on the shell of sealing and connect
The both ends of terminal 13, the first binding post and the second binding post are located in shell and outside shell；First binding post is located at shell
Interior one end is fixedly connected with static contact 14, and the intracorporal one end of shell that is located at of the second binding post is fixedly installed with and static contact cooperation
Movable contact spring 15, be further fixed on column 16 in shell, column is against the back side (contact of namely not set movable contact spring of movable contact spring
17 one side) that the contact 17 of movable contact spring is contacted in normal state with the contact 18 of static contact is stronger.In use, will
First binding post and the second binding post are connected in circuit, when circuit breaks down so that passing through the first binding post and the second wiring
The electric current of column, movable contact spring and static contact increases, the first binding post and the second binding post, movable contact spring and static contact temperature liter
Height makes its variation with temperature and deforms, therefore when reaching critical condition due to movable contact spring self property, movable contact spring and quiet
The contact separation of contact, circuit power is disconnected.
With the development of science and technology, in the case where not changing the electric conductivity of movable contact or stationary contact, the wink of this structure
The sensitivity of dynamic formula seal temperature protector is not to be able to satisfy the demand of the high requirement of people.
Summary of the invention
The purpose of this utility model is to provide a kind of in the case where not changing the electric conductivity of movable contact or stationary contact,
The instantaneous seal temperature protector that can be improved sensitivity, has solved above-mentioned technical problem.
The technical solution of the application are as follows: a kind of instantaneous seal temperature protector, the shell including sealing, on the shell
It is fixed with the first binding post and the second binding post, the both ends of the first binding post and the second binding post are located in shell and shell
Outside；First binding post is located at the intracorporal one end of shell and is fixedly connected with static contact, and the intracorporal one end of shell that is located at of the second binding post is consolidated
Dingan County is equipped with the movable contact spring cooperated with static contact, is further fixed on column in shell, column is against the back side of movable contact spring；The shell
It is inside also fixedly installed with third binding post, the both ends of the third binding post are located in shell and outside shell；Peace in the shell
Equipped with electrical heating elements, current-limiting resistance and posive temperature coefficient thermistor, the electrical heating elements and current-limiting resistance connect to be formed
Heater circuit, posive temperature coefficient thermistor formation integrated circuit in parallel with the heater circuit, the integrated circuit
One end is connect with first binding post, and the other end is connect with the third binding post.
Preferably, the electrical heating elements are between the movable contact spring and the posive temperature coefficient thermistor.
Preferably, the electrical heating elements are heating wire.
Preferably, the movable contact spring is provided with arc fold bending, the arc between the column and the contact of movable contact spring
Bending is close to the column.
Preferably, the aperture position of the arc fold bending is towards the back side of the movable contact spring.
Preferably, the radian of the arc fold bending is 10-25 °.
Another technical solution of the application are as follows: a kind of instantaneous seal temperature protector is referred to as wink dynamic sealing
Temperature type protector, the shell including sealing are fixed with the first binding post and the second binding post, the first binding post on the shell
With the both ends of the second binding post be located in shell and shell outside；First binding post is located at the intracorporal one end of shell and is fixedly connected with
The intracorporal one end of shell that is located at of static contact, the second binding post is fixedly installed with movable contact spring with static contact cooperation, also solid in shell
Surely there is column, column is against the back side of movable contact spring；Third binding post, the third binding post are also fixedly installed in the shell
Both ends be located in shell and shell outside；Electrical heating elements, current-limiting resistance and positive temperature coefficient temperature-sensitive are installed in the shell
Resistance, the electrical heating elements and current-limiting resistance connect to form heater circuit, and the posive temperature coefficient thermistor adds with described
Heater circuit parallel connection forms integrated circuit, and one end of the integrated circuit connect with second binding post, the other end and described the
The connection of three binding posts.
Instantaneous seal temperature protector provided by the utility model, when in use, by the first binding post and the second wiring
Column and third binding post and circuit connection, when circuit breaks down, the first binding post and the second binding post, movable contact spring and quiet
Contact temperature increase while, electrical heating elements temperature increase, thus further such that movable contact spring temperature distortion faster；In addition,
While electrical heating elements temperature increases, the resistance value of posive temperature coefficient thermistor can become larger, so that heater circuit shunts
When, the electric current got can become smaller, so that the electric current that heating element is got further increases, further accelerate movable contact spring
The speed of temperature distortion, in this way, substantially increasing the temperature in the case where not changing the electric conductivity of movable contact or stationary contact
The sensitivity of protector.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of existing instantaneous seal temperature protector；
Fig. 2 is a kind of structural schematic diagram of instantaneous seal temperature protector provided by the utility model；
Fig. 3 is a kind of design method schematic diagram of movable contact spring of the utility model；
Fig. 4 is a kind of schematic diagram of schematic diagram of the utility model；
In figure: shell 11, the first binding post 12, the second binding post 13, static contact 14, movable contact spring 15, column 16, movable contact spring
Contact 17, the contact 18 of static contact, third binding post 19, electrical heating elements 20, current-limiting resistance 21, positive temperature coefficient temperature-sensitive electricity
Hinder 22, arc fold bending 23, circuit 24.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
The utility model provides a kind of instantaneous seal temperature protector, referring to fig. 2, the shell 11 including sealing, institute
It states and is fixed with the first binding post 12 and the second binding post 13 on shell, the both ends of the first binding post and the second binding post are located at
In shell and outside shell；First binding post is located at the intracorporal one end of shell and is fixedly connected with static contact 14, and the second binding post is located at
The intracorporal one end of shell is fixedly installed with the movable contact spring 15 with static contact cooperation, and movable contact spring generally uses existing bimetal leaf, shell
It is further fixed on column 16 in vivo, column is against the back side of movable contact spring, is normally at the contact of the second binding post and the first static contact
Between；Third binding post 19 is also fixedly installed in the shell, the both ends of the third binding post are located in shell and shell
Outside；Electrical heating elements 20, current-limiting resistance 21 and posive temperature coefficient thermistor 22, the electric heating member are installed in the shell
Part and current-limiting resistance connect to form heater circuit, and the posive temperature coefficient thermistor is in parallel with the heater circuit to form entirety
Circuit, one end of the integrated circuit are connect with first binding post, and the other end is connect with the third binding post.
Instantaneous seal temperature protector provided by the utility model, when in use, referring to fig. 4, by the first binding post and
Second binding post and third binding post are connect with circuit 24, and when circuit breaks down, the first binding post and the second binding post are moved
While contact and static contact temperature increase, electrical heating elements temperature is increased, thus further such that movable contact spring temperature distortion
Faster；In addition, the resistance value of posive temperature coefficient thermistor can become larger while electrical heating elements temperature increases, so that plus
When heater circuit shunts, the electric current got can become smaller, so that the electric current that heating element is got further increases, further add
The fast speed of movable contact spring temperature distortion, in this way, being mentioned significantly in the case where not changing the electric conductivity of movable contact or stationary contact
The high sensitivity of the temperature protector.
In one embodiment, the mounting structure of the above-mentioned integrated circuit can also be one end and second wiring
Column connection, the other end are connect with the third binding post, can equally achieve the effect that above scheme.
In the application, the electrical heating elements may generally be heating wire, and the electrical heating elements are preferably placed at the dynamic touching
Between piece and the posive temperature coefficient thermistor, the mesh for preferably taking into account posive temperature coefficient thermistor and movable contact spring is had reached
's.
Column, which is against on movable contact spring, in order to prevent interferes movable contact spring temperature distortion and influences its sensitivity, described referring to Fig. 3
Movable contact spring is provided with arc fold bending 83 between the column and the contact 17 of movable contact spring, and the arc fold bending is close to described vertical
Column.The aperture position of the arc fold bending towards the back side of the movable contact spring, the radian of the arc fold bending be preferably 10-25 °.
By the way that arc fold bending is arranged, in movable contact spring temperature distortion, along arc-shaped deformation, deformation angle when temperature distortion at arc fold bending
It is relatively large, therefore in line fault, the contact of movable contact spring can prevent column to be against dynamic to fall at arc fold bending as break
Movable contact spring temperature distortion is interfered on contact and influences its sensitivity.
As a kind of deformation, the aperture position of the arc fold bending is towards the front of the movable contact spring, in this way, being made by gravity
With in movable contact spring deformation, arc fold bending can be to a certain extent to the state development stretched, so that the contact of movable contact spring
It separates with static contact and misplaces simultaneously with the contact of static contact, improve separating rate.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model, the temperature
The application mode of protector is also not necessarily limited to foregoing description, for example can be used as relay use, or be designed to breaker knot
Structure etc..
Claims (7)
1. a kind of instantaneous seal temperature protector, the shell (11) including sealing is fixed with the first binding post on the shell
(12) and the second binding post (13), the both ends of the first binding post and the second binding post are located in shell and outside shell；First
Binding post is located at the intracorporal one end of shell and is fixedly connected with static contact (14), and the second binding post is located at the fixed peace in the intracorporal one end of shell
Equipped with the movable contact spring (15) cooperated with static contact, column (16) are further fixed in shell, column is against the back side of movable contact spring；It is special
Sign is；
It is also fixedly installed in the shell third binding post (19), the both ends of the third binding post are located in shell and shell
Outside；
Electrical heating elements (20), current-limiting resistance (21) and posive temperature coefficient thermistor (22) are installed in the shell, it is described
Electrical heating elements and current-limiting resistance connect to form heater circuit, and the posive temperature coefficient thermistor is in parallel with the heater circuit
Integrated circuit is formed, one end of the integrated circuit is connect with first binding post, and the other end and the third binding post connect
It connects.
2. a kind of instantaneous seal temperature protector according to claim 1, which is characterized in that the electrical heating elements position
Between the movable contact spring and the posive temperature coefficient thermistor.
3. a kind of instantaneous seal temperature protector according to claim 1, which is characterized in that the electrical heating elements are
Heating wire.
4. a kind of instantaneous seal temperature protector according to claim 1-3, which is characterized in that the dynamic touching
Piece is provided with arc fold bending (23) between the column and the contact (17) of movable contact spring, and the arc fold bending is close to described vertical
Column.
5. a kind of instantaneous seal temperature protector according to claim 4, which is characterized in that the arc fold bending is opened
Mouth is positioned against the back side of the movable contact spring.
6. a kind of instantaneous seal temperature protector according to claim 5, which is characterized in that the arc of the arc fold bending
Degree is 10-25 °.
7. a kind of instantaneous seal temperature protector, the shell (11) including sealing is fixed with the first binding post on the shell
(12) and the second binding post (13), the both ends of the first binding post and the second binding post are located in shell and outside shell；First
Binding post is located at the intracorporal one end of shell and is fixedly connected with static contact (14), and the second binding post is located at the fixed peace in the intracorporal one end of shell
Equipped with the movable contact spring (15) cooperated with static contact, column (16) are further fixed in shell, column is against the back side of movable contact spring；It is special
Sign is；
It is also fixedly installed in the shell third binding post (19), the both ends of the third binding post are located in shell and shell
Outside；
Electrical heating elements (20), current-limiting resistance (21) and posive temperature coefficient thermistor (22) are installed in the shell, it is described
Electrical heating elements and current-limiting resistance connect to form heater circuit, and the posive temperature coefficient thermistor is in parallel with the heater circuit
Integrated circuit is formed, one end of the integrated circuit is connect with second binding post, and the other end and the third binding post connect
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821900908.8U CN208970432U (en) | 2018-11-16 | 2018-11-16 | A kind of instantaneous seal temperature protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821900908.8U CN208970432U (en) | 2018-11-16 | 2018-11-16 | A kind of instantaneous seal temperature protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208970432U true CN208970432U (en) | 2019-06-11 |
Family
ID=66765546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821900908.8U Active CN208970432U (en) | 2018-11-16 | 2018-11-16 | A kind of instantaneous seal temperature protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208970432U (en) |
-
2018
- 2018-11-16 CN CN201821900908.8U patent/CN208970432U/en active Active
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