CN107527766A - Self-hold thermal protector - Google Patents
Self-hold thermal protector Download PDFInfo
- Publication number
- CN107527766A CN107527766A CN201710725461.9A CN201710725461A CN107527766A CN 107527766 A CN107527766 A CN 107527766A CN 201710725461 A CN201710725461 A CN 201710725461A CN 107527766 A CN107527766 A CN 107527766A
- Authority
- CN
- China
- Prior art keywords
- bottom plate
- conducting surface
- bridge
- right panel
- electric heating
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H37/5418—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting using cantilevered bimetallic snap elements
Abstract
The invention discloses a kind of self-hold thermal protector, contain shell, bimetal leaf, stationary contact, bottom plate and junction block one and junction block two, also bridge-type electric heating piece, PTC thermistor and steel card, the bottom plate is Split type structure, bottom plate includes left plate and right panel, spacing is left between left plate and right panel, the junction block two is connected with the left plate of bottom plate, stationary contact is arranged on the right panel of the bottom plate, the both ends of bridge-type electric heating piece are separately positioned in the left plate and right panel of the bottom plate, bridge-type electric heating piece is inverted U-shaped, the top of the bridge-type electric heating piece is corresponding with the middle part of double golden shoe；The left conducting surface and right conducting surface of PTC thermistor are scheduled on by steel fixing on bottom plate and the left conducting surface of PTC thermistor and right conducting surface are connected with the left plate and right panel of bottom plate respectively, and the shell, bottom plate and steel card are arranged in insulating boot body.The self-hold thermal protector can improve the agility and stability of the heated de-energizing actions of bimetal leaf, be effectively protected electrical equipment.
Description
Technical field
The present invention relates to a kind of electric prospection device, especially a kind of self-hold thermal protector.
Background technology
Protector is widely used in temperature control and the protection of the home electrical heaters such as transformer, motor and similar electrical equipment, it
It can experience and follow the change of environment temperature, and in the cut-out of default temperature spot execution circuit, control and defencive function.
A kind of existing protector, contain shell, bimetal leaf, stationary contact, bottom plate and junction block one and junction block two.Stationary contact is arranged on
On bottom plate, one end of bimetal leaf is arranged in shell by rivet, and the other end of double golden shoe is provided with movable contact.During work,
When electrical equipment makes temperature rise to the operating temperature of protector because of heating, shell is heated and is conducted to bimetal leaf, bimetallic
Piece is heated to be produced internal stress and acts rapidly, is pushed movable contact open and is left stationary contact and disconnecting circuit, is risen so as to cut off appliances power source
To protective effect.When protected electrical equipment temperature drops to the specified reset temperature value of protector, bimetal leaf returns to just
The dynamic and static contact closure of beginning state, electrical equipment recover normal work.In above-mentioned protector, the heat in double golden shoe is by outer
Shell conduction, because being influenceed by shell product, thermal conductivity factor and environment, often lead to the heated slow movement powered off of bimetal leaf or
Inconsistency, so as to reduce the protecting effect to electrical equipment.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of self-hold thermal protector, the self-hold thermal protector
The agility and stability of the heated de-energizing actions of bimetal leaf can be improved, is effectively protected electrical equipment.
In order to solve the above-mentioned technical problem, a kind of self-hold thermal protector of the present invention, shell, bimetal leaf, quiet is contained
Contact, bottom plate, junction block one and junction block two, are provided with insulating paper between bottom plate and shell, one end of bimetal leaf passes through rivet
It is arranged in shell, the other end of double golden shoe is provided with movable contact, and the movable contact that double golden shoe other ends are provided with is with being arranged on bottom
Stationary contact closure on plate, junction block one are connected with shell, also bridge-type electric heating piece, PTC thermistor and steel card, the bottom plate
For Split type structure, bottom plate includes left plate and right panel, and spacing, the left plate of the junction block two and bottom plate are left between left plate and right panel
Be connected, stationary contact is arranged on the right panel of the bottom plate, the both ends of bridge-type electric heating piece be separately positioned on the bottom plate left plate and
On right panel, bridge-type electric heating piece is inverted U-shaped, and the top of the bridge-type electric heating piece is corresponding with the middle part of double golden shoe；PTC
The left conducting surface and right conducting surface of thermistor are fixed by the steel to be scheduled on bottom plate and the left conducting surface of PTC thermistor
It is connected respectively with the left plate and right panel of bottom plate with right conducting surface, the shell, bottom plate and steel card are arranged in insulating boot body.
The movable contact and stationary contact are packet structure.
Breach is provided between the left conducting surface and right conducting surface of the PTC thermistor.
It is silver paste conducting surface on the left conducting surface of the PTC thermistor and right conducting surface.
In above-mentioned self-hold thermal protector, due to being connected with bridge-type electric heating piece and PTC on the bottom plate of Split type structure
Thermistor, thus work when, electrical heating and the shell of self-hold thermal protector is heated and be conducted to bimetal leaf, together
When the heat that sends of bridge-type electric heating piece be directly radiated on bimetal leaf, and PTC thermistor will not produce high temperature, work as bimetallic
Piece is heated when reaching rated function temperature, and bimetal leaf is heated to be produced internal stress and act rapidly, is pushed movable contact open and is left stationary contact
Put and disconnecting circuit；At this moment PTC thermistor resistance becomes big generation high temperature, and the heat sent with bridge-type electric heating piece is together radiated
On bimetal leaf, the movable contact on bimetal leaf and the stationary contact being arranged on bottom plate is set to be always maintained at off-state, so as to cut
Circuit breaker power supply plays a protective role.From the aforegoing it can be seen that above-mentioned self-hold thermal protector not only increase bimetal leaf by
The agility and stability of hot de-energizing actions, and electrical equipment is obtained significantly more efficient protection.
Brief description of the drawings
Fig. 1 is the structure chart of self-hold thermal protector；
Fig. 2 is Fig. 1 overlooking the structure diagram；
Fig. 3 is Fig. 1 left view structural representation；
1. junction block two in figure, 2. left plates, 3. shells, 4. rivets, 5. bridge-type electric heating pieces, 6. bimetal leafs, 7. movable contacts, 8. is quiet
Contact, 9. insulating papers, 10. right panel, 11. spacing, 12. steel cards, 13.PTC thermistors, 14. junction blocks one.
Embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings：
As Figure 1-3, the invention discloses a kind of self-hold thermal protector, shell 3, bimetal leaf 6, stationary contact are contained
8th, bottom plate, junction block 1 and junction block 21.Insulating paper 9 is provided between bottom plate and shell 3, one end of bimetal leaf 6 passes through riveting
Nail 4 is arranged in shell 3, and the other end of double golden shoe 6 is provided with movable contact 7, the movable contact 8 that double golden other ends of shoe 6 are provided with and
The stationary contact 8 being arranged on bottom plate closes, and junction block 1 is connected with shell.A kind of above-mentioned self-hold thermal protector also has bridge
Formula electric heating piece 5, PTC thermistor 13 and steel card 12.The bottom plate is Split type structure, and bottom plate includes left plate 2 and right panel 10, left plate
Spacing 11 is left between 2 and right panel 10.The junction block 21 is connected with the left plate 2 of bottom plate, and stationary contact 8 is arranged on the bottom plate
Right panel 10 on.The both ends of bridge-type electric heating piece 5 are separately positioned in the left plate 2 and right panel 10 of the bottom plate, and bridge-type electric heating piece 5 is
Inverted U-shaped, the top of the bridge-type electric heating piece 5 are corresponding with the middle part of double golden shoe 6；Lead on a left side for PTC thermistor 13
Electric face and right conducting surface is fixed on by the steel card 12 on bottom plate and the left conducting surface of PTC thermistor 13 and right conducting surface
It is connected respectively with the left plate 2 and right panel 10 of bottom plate.The shell 3, bottom plate and steel card 12 are arranged in insulating boot body.
To improve the reliability of contact, the movable contact 7 and stationary contact 8 are packet structure.
To prevent short circuit, breach is provided between the left conducting surface and right conducting surface of the PTC thermistor 13.
It is silver paste conduction to improve conductive effect, on the left conducting surface of the PTC thermistor 13 and right conducting surface
Face.
In above-mentioned self-hold thermal protector, due to being connected with bridge-type electric heating piece 5 and PTC on the bottom plate of Split type structure
Thermistor 13, therefore when working, electrical heating and make the shell 3 of self-hold thermal protector heated and be conducted to bimetal leaf
6, while the heat that bridge-type electric heating piece 5 is sent directly is radiated on bimetal leaf 6, and PTC thermistor 13 will not produce high temperature,
When bimetal leaf 6 is heated reaches rated function temperature, bimetal leaf 6 is heated to be produced internal stress and acts rapidly, pushes dynamic touch open
Point 7 leaves stationary contact 8 and disconnecting circuit；At this moment the resistance of PTC thermistor 13 becomes big generation high temperature, is sent with bridge-type electric heating piece 5
Heat be together radiated on bimetal leaf 6, make movable contact 7 on bimetal leaf 6 and the stationary contact 8 that is arranged on bottom plate always
Remain off, so as to which cut-out appliances power source plays a protective role always.From the aforegoing it can be seen that above-mentioned self-hold Thermal protection
Device not only increases bimetal leaf 6 and is heated the agility and stability of de-energizing actions, and electrical equipment is obtained significantly more efficient guarantor
Shield.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not limited to this hair
It is bright, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., it should be included in the present invention
Protection domain within.
Claims (4)
1. a kind of self-hold thermal protector, containing shell, bimetal leaf, stationary contact, bottom plate, junction block one and junction block two,
Insulating paper is provided between bottom plate and shell, one end of bimetal leaf is arranged in shell by rivet, the other end of double golden shoe
Provided with movable contact, movable contact that double golden shoe other ends are provided with and the stationary contact being arranged on bottom plate close, junction block one with it is outer
Shell phase connects, it is characterised in that also has bridge-type electric heating piece, PTC thermistor and steel card, the bottom plate is Split type structure, bottom plate bag
Left plate and right panel are included, spacing is left between left plate and right panel, the junction block two is connected with the left plate of bottom plate, and stationary contact is arranged on
On the right panel of the bottom plate, the both ends of bridge-type electric heating piece are separately positioned in the left plate and right panel of the bottom plate, bridge-type electric heating piece
It is corresponding with the middle part of double golden shoe for inverted U-shaped, the top of the bridge-type electric heating piece；The left conduction of PTC thermistor
Face and right conducting surface fixed by the steel be scheduled on bottom plate and the left conducting surface of PTC thermistor and right conducting surface respectively with
The left plate of bottom plate is connected with right panel, and the shell, bottom plate and steel card are arranged in insulating boot body.
2. a kind of self-hold thermal protector according to claim 1, it is characterised in that the movable contact and stationary contact are equal
For packet structure.
A kind of 3. self-hold thermal protector according to claim 1 a, it is characterised in that left side for the PTC thermistor
Breach is provided between conducting surface and right conducting surface.
A kind of 4. self-hold thermal protector according to claim 1 a, it is characterised in that left side for the PTC thermistor
It is silver paste conducting surface on conducting surface and right conducting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710725461.9A CN107527766A (en) | 2017-08-22 | 2017-08-22 | Self-hold thermal protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710725461.9A CN107527766A (en) | 2017-08-22 | 2017-08-22 | Self-hold thermal protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107527766A true CN107527766A (en) | 2017-12-29 |
Family
ID=60681890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710725461.9A Pending CN107527766A (en) | 2017-08-22 | 2017-08-22 | Self-hold thermal protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107527766A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108074767A (en) * | 2018-01-23 | 2018-05-25 | 东莞市贝特电子科技股份有限公司 | A kind of manufacturing process of Kick type temperature controller |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101339863A (en) * | 2008-08-07 | 2009-01-07 | 宝应电器厂 | PTC ceramic heat protector |
| CN204927181U (en) * | 2015-09-08 | 2015-12-30 | 扬州宝珠电器有限公司 | Hot protector of sensitive type of resetting current postpones |
| CN105225889A (en) * | 2015-10-08 | 2016-01-06 | 常州市江浪铸造有限公司 | Smog protector |
| CN105529216A (en) * | 2016-01-28 | 2016-04-27 | 苏州工业园区凯恩电子科技有限公司 | Outage reset thermal protector |
| CN106057596A (en) * | 2016-06-27 | 2016-10-26 | 攸县联诚电子有限公司 | Power failure reset protector integrating double temperature and current protections |
| CN207320005U (en) * | 2017-08-22 | 2018-05-04 | 江苏怡通控制系统有限公司 | Self-hold thermal protector |
-
2017
- 2017-08-22 CN CN201710725461.9A patent/CN107527766A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101339863A (en) * | 2008-08-07 | 2009-01-07 | 宝应电器厂 | PTC ceramic heat protector |
| CN204927181U (en) * | 2015-09-08 | 2015-12-30 | 扬州宝珠电器有限公司 | Hot protector of sensitive type of resetting current postpones |
| CN105225889A (en) * | 2015-10-08 | 2016-01-06 | 常州市江浪铸造有限公司 | Smog protector |
| CN105529216A (en) * | 2016-01-28 | 2016-04-27 | 苏州工业园区凯恩电子科技有限公司 | Outage reset thermal protector |
| CN106057596A (en) * | 2016-06-27 | 2016-10-26 | 攸县联诚电子有限公司 | Power failure reset protector integrating double temperature and current protections |
| CN207320005U (en) * | 2017-08-22 | 2018-05-04 | 江苏怡通控制系统有限公司 | Self-hold thermal protector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108074767A (en) * | 2018-01-23 | 2018-05-25 | 东莞市贝特电子科技股份有限公司 | A kind of manufacturing process of Kick type temperature controller |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171229 |