CN208908204U - A kind of overheat overcurrent power-off protection device - Google Patents
A kind of overheat overcurrent power-off protection device Download PDFInfo
- Publication number
- CN208908204U CN208908204U CN201822008657.9U CN201822008657U CN208908204U CN 208908204 U CN208908204 U CN 208908204U CN 201822008657 U CN201822008657 U CN 201822008657U CN 208908204 U CN208908204 U CN 208908204U
- Authority
- CN
- China
- Prior art keywords
- power
- shell
- temperature
- protection
- bottom plate
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model discloses a kind of overheat overcurrent power-off protection devices; including shell and bottom plate; the lower end of the shell and the upper surface of bottom plate connect; the inside of shell is equipped with biplate metal; one end of the biplate metal is connected with weld tabs; the other end of biplate metal is connected with movable contact, is in contact on the inside of side of the weld tabs far from biplate metal and shell, movable contact is connected with stationary contact far from the side of biplate metal.This overheat overcurrent power-off protection device; when temperature does not reach the temperature of specified limitation; when electric current has exceeded the utility model practical protective device rated current; it will power-off protection; it will power-off protection when temperature reaches volume limit temperature when normal rated current work; and the additional heating wire of the present apparatus; calorific value can be increased according to the ontology resistance value of heating wire; it persistently allows the present apparatus to be in a kind of state of power-off protection, and only could can just be closed into normality with the specified good reset temperature of the present apparatus in the case where artificial power-off.
Description
Technical field
The utility model relates to power-off protection and technical field, specially a kind of overheat overcurrent power-off protection device.
Background technique
Currently, being increasingly stringenter both at home and abroad to electrical appliance and industry fever control terminal for Electrical Safety, and state
It is interior to have enforceable safe qualification specification, the control temperature that the temperature control now circulated on the market be simple for electronic component
Degree, temperature reach the condition limited, and temperature control just protects power-off, do not allow off-the-shelf hardware to damage.This utility model can satisfy electronics
The safety real requirement of electric appliance, and can ensure the life property safety of user, allow the earth far from electrical fire calamity.
Utility model content
The purpose of this utility model is to provide a kind of overheat overcurrent power-off protection devices, have electric current and the dual guarantor of temperature
The advantages of shield, solves the problems of the prior art.
To achieve the above object, the utility model provides the following technical solutions: a kind of overheat overcurrent power-off protection device, packet
Shell and bottom plate are included, the lower end of the shell and the upper surface of bottom plate connect, and the inside of shell is equipped with biplate metal, described double
One end of piece metal is connected with weld tabs, and the other end of biplate metal is connected with movable contact, side of the weld tabs far from biplate metal with
It being in contact on the inside of shell, movable contact is connected with stationary contact far from the side of biplate metal, and the one of the separate movable contact of stationary contact
Side and the lower surface of bottom plate connect, and the upper surface of the bottom plate is connected with insulating paper, and the both ends of insulating paper extend up, insulating paper
Centre offer through-hole, heating wire is installed, one end of heating wire is fixedly connected with stationary contact in through-hole.
Preferably, the movable contact, bottom plate and insulating paper extend to one end in air, using antirust treatment.
Preferably, the insulation voltage of the insulating paper is AC1800V.
Preferably, the stationary contact and weld tabs can bear three kilograms or more of pulling force.
Compared with prior art, the beneficial effects of the utility model are as follows:
This overheat overcurrent power-off protection device, when temperature does not reach the temperature of specified limitation, electric current has exceeded this
When Novel practical protective device rated current, it will power-off protection, normal rated current work when temperature reach volume limit
When temperature will power-off protection, and the additional heating wire of the present apparatus, the heat and temperature that can be generated with the electric current of product produce
Raw heat can increase calorific value according to the ontology resistance value of heating wire, the present apparatus is persistently allowed to be in a kind of state of power-off protection,
And only normality could can be just closed into the specified good reset temperature of the present apparatus in the case where artificial power-off.
Detailed description of the invention
Fig. 1 is the installation diagram of the utility model；
Fig. 2 is the explosive view of the utility model.
In figure: 1, shell；2, bottom plate；3, biplate metal；4, weld tabs；5, movable contact；6, stationary contact；7, insulating paper；71, lead to
Hole；8, heating wire.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
A kind of overheat overcurrent power-off protection device referring to FIG. 1-2, including shell 1 and bottom plate 2, the lower end and bottom of shell 1
The upper surface of plate 2 connects, and the inside of shell 1 is equipped with biplate metal 3, and one end of biplate metal 3 is connected with weld tabs 4, biplate gold
The other end for belonging to 3 is connected with movable contact 5, and side of the weld tabs 4 far from biplate metal 3 is in contact with the inside of shell 1, movable contact 5
Side far from biplate metal 3 is connected with stationary contact 6, when electric current is led to by bottom plate 2 and 5 terminals of movable contact through heating wire 8, root
It can make its reverse bending with the temperature set according to the resistance value of biplate metal 3, separate the other end of 2 wiring of bottom plate, it will moment
Open-circuit-protection is powered off, after circuitry cuts, shell 1 can make its fever with the temperature and electric current of product, and resistance value becomes larger, always
It can generate heat, shell 1 is allowed not reply the state being closed originally, stationary contact 6 and weld tabs 4 can bear three kilograms or more of pulling force,
And it will not fall off, the side of the separate movable contact 5 of stationary contact 6 is connect with the lower surface of bottom plate 2, the upper surface connection of bottom plate 2
There is insulating paper 7, the both ends of insulating paper 7 extend up, and the insulation voltage of insulating paper 7 is AC1800V, ensure entire protective device
Security performance, the centre of insulating paper 7 offer through-hole 71, and heating wire 8 is equipped in through-hole 71, and heating wire 8 has certain resistance in itself
Value can carry out selection according to the requirement of client, when load current is greater than 8 rated current of heating wire, then heating wire 8 will
Fever bending, moment can carry out power-off open-circuit-protection to machine, and one end of heating wire 8 is fixedly connected with stationary contact 6, heating wire 8
It after being installed with insulating paper 7, can firmly fix, not allow it to loosen, can guarantee its normal work, the selection of heating wire 8 is also
More come what is determined, movable contact 5, bottom plate 2 and insulating paper 7 extend to one in air for the requirement of the requirement disconnecting circuit of client
End, using antirust treatment, weld tabs 4 and movable contact 5, the electric current that silver layer above can bear 10A work normally 10000 service life not
Damage.
The course of work: when electric current is led to by bottom plate 2 and 5 terminals of movable contact through heating wire 8, according to the resistance of biplate metal 3
Be worth and the temperature that sets can make its reverse bending, separate the other end of 2 wiring of bottom plate, will instant cut-off open-circuit-protection, electricity
After the cutting of road, shell 1 can make its fever with the temperature and electric current of product, and resistance value becomes larger, and can generate heat always, allow shell 1
The state being closed originally will not be replied, heating wire 8 has certain resistance value in itself, selection can be carried out according to the requirement of client, when negative
When carrying electric current greater than 8 rated current of heating wire, the bending then heating wire 8 will generate heat, moment can carry out power-off open circuit to machine
Protection.
In summary: this overheat overcurrent power-off protection device, when temperature does not reach the temperature of specified limitation, electric current is
When through beyond the practical protective device rated current of the utility model, it will power-off protection, temperature when normal rated current works
When reaching volume limit temperature will power-off protection, and the additional heating wire 8 of the present apparatus, the heat that can be generated with the electric current of product
The heat generated with temperature can increase calorific value according to the ontology resistance value of heating wire 8, the present apparatus is persistently allowed to be in a kind of power-off guarantor
The state of shield, and only could can be just closed into often with the specified good reset temperature of the present apparatus in the case where artificial power-off
State.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of overheat overcurrent power-off protection device, including shell (1) and bottom plate (2), it is characterised in that: the shell (1)
Lower end is connect with the upper surface of bottom plate (2), and the inside of shell (1) is equipped with biplate metal (3), and the one of the biplate metal (3)
End is connected with weld tabs (4), and the other end of biplate metal (3) is connected with movable contact (5), and the one of weld tabs (4) separate biplate metal (3)
It is in contact on the inside of side and shell (1), movable contact (5) is connected with stationary contact (6), stationary contact far from the side of biplate metal (3)
(6) side of separate movable contact (5) is connect with the lower surface of bottom plate (2), and the upper surface of the bottom plate (2) is connected with insulating paper
(7), the both ends of insulating paper (7) extend up, and the centre of insulating paper (7) offers through-hole (71), are equipped with hair in through-hole (71)
One end of heated filament (8), heating wire (8) is fixedly connected with stationary contact (6).
2. a kind of overheat overcurrent power-off protection device according to claim 1, it is characterised in that: the movable contact (5), bottom
Plate (2) and insulating paper (7) extend to one end in air, using antirust treatment.
3. a kind of overheat overcurrent power-off protection device according to claim 1, it is characterised in that: the insulating paper (7)
Insulation voltage is AC1800V.
4. a kind of overheat overcurrent power-off protection device according to claim 1, it is characterised in that: the stationary contact (6) and
Weld tabs (4) can bear three kilograms or more of pulling force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822008657.9U CN208908204U (en) | 2018-11-30 | 2018-11-30 | A kind of overheat overcurrent power-off protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822008657.9U CN208908204U (en) | 2018-11-30 | 2018-11-30 | A kind of overheat overcurrent power-off protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208908204U true CN208908204U (en) | 2019-05-28 |
Family
ID=66614951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822008657.9U Withdrawn - After Issue CN208908204U (en) | 2018-11-30 | 2018-11-30 | A kind of overheat overcurrent power-off protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208908204U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546764A (en) * | 2020-05-18 | 2020-08-18 | 李从勇 | Overheating self-power-off protection device for pyrograph machine |
-
2018
- 2018-11-30 CN CN201822008657.9U patent/CN208908204U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546764A (en) * | 2020-05-18 | 2020-08-18 | 李从勇 | Overheating self-power-off protection device for pyrograph machine |
| CN111546764B (en) * | 2020-05-18 | 2022-07-15 | 李从勇 | Overheating self-power-off protection device for pyrograph machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20130293343A1 (en) | Device combining a thermal fuse and a resistor | |
| US8816812B2 (en) | Varistor fuse element | |
| CN203300549U (en) | Temperature fuse protector with dual-protection function | |
| CN208908204U (en) | A kind of overheat overcurrent power-off protection device | |
| CN103943292B (en) | A kind of safe varistor of the hot tripping indication function of band | |
| CN203799960U (en) | Temperature controllable protective tube | |
| CN206532747U (en) | One kind overheat overcurrent power-off protection device | |
| CN202534449U (en) | Cement resistor with temperature fuse wire | |
| CN109103708A (en) | A kind of plug is recycled the automatic fuse of overheating protection and its application method | |
| CN204516710U (en) | Overcurrent, overload, overheat protector | |
| CN208908205U (en) | A kind of novel overheat overcurrent power-off protection device | |
| CN2609253Y (en) | Over-voltage lightning-protection safety protector | |
| CN208352644U (en) | A kind of recyclable automatic fuse of overheating protection of plug | |
| CN202888538U (en) | Manual reset overload overtemperature protection plug | |
| CN202150421U (en) | Breaker overload protecting circuit connecting device | |
| CN202888543U (en) | Manual reset overload overtemperature protection socket | |
| CN208908209U (en) | A kind of moment overtemperature overcurrent protective device | |
| CN203242858U (en) | Safe socket assembly with over-current protection | |
| CN205542673U (en) | High density pottery fuse | |
| CN204243387U (en) | There is the plug and socket of flameproof protection device | |
| CN211474299U (en) | Air inlet heater with protection function | |
| CN204391428U (en) | There is the plug and socket of flameproof protection device | |
| CN2130284Y (en) | High-reliability hot-fusing type protecting element for electric appliance | |
| CN212784076U (en) | Socket with lightning protection function | |
| CN208111498U (en) | High safety battery cover board and cubic battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190528 Effective date of abandoning: 20201215 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190528 Effective date of abandoning: 20201215 |