CN108010822A - A kind of current over-load protector - Google Patents
A kind of current over-load protector Download PDFInfo
- Publication number
- CN108010822A CN108010822A CN201711488886.9A CN201711488886A CN108010822A CN 108010822 A CN108010822 A CN 108010822A CN 201711488886 A CN201711488886 A CN 201711488886A CN 108010822 A CN108010822 A CN 108010822A
- Authority
- CN
- China
- Prior art keywords
- terminal
- input terminal
- current over
- base
- load protector
- 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
Links
- 230000001012 protector Effects 0.000 title claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 5
- 206010037660 Pyrexia Diseases 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
- H01H71/16—Electrothermal mechanisms with bimetal element
- H01H71/164—Heating elements
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
The invention discloses a kind of current over-load protector; by installing a PTC heating plate additional inside protector and setting PTC heating plates in parallel with the bimetal leaf of protector; bimetal leaf can be made not reset after protector overloads; only after cutting off the power; bimetal leaf can just cool down reset, so as to ensure that the safety of maintenance conditions personnel and whole circuit.
Description
Technical field
The present invention relates to Electrical Safety to protect field, when can extend sheet metal reset after being overloaded more particularly to one kind
Between current over-load protector.
Background technology
With the development of industrial technology, power supply and various electric appliances have penetrated into people's daily life, each neck of work
In domain, with the increasingly extensive use of various electric appliances, also become increasingly conspicuous using the safety issue of electric appliance.In order to ensure that electricity consumption is pacified
Entirely, people are provided with current over-load protector in electric appliance, pass through the automatic striping of current over-load protector in line anomalies
Road, to avoid the generation of peril.
Current over-load protector indoor design has bimetal leaf, and movable contact is provided with bimetal leaf, is gone back inside protector
It is provided with stationary contact, movable contact and stationary contact point contact form closed circuit during normal operation, and electric current is by bimetal leaf to electric appliance
Tool power supply, when overcurrent occurs, excessive electric current makes bimetal leaf fever, deformation, movable contact is separated with stationary contact, so as to cut
Cut-off electrical circuit.After power-off, bimetal leaf cooling recovers deformation, and movable contact with stationary contact point contact, re-forms the confession of closure again
Electrical circuit.
For conventional current over-load protector after overcurrent occurs, bimetal leaf would generally recover deformation in seconds, multiple
Position circuit, if electric appliance need to be detected and be repaired, it is necessary to power supply is initially switched off, if at this time because electric appliance does not have there are more serious failure
Having to cut off the power in time and overhauled, the Rapid reset of protector will be brought great potential safety hazard, or due to maintenance personal
Carelessness, in the case where not cutting off the power carry out electrical device maintenance and detection, will be extremely dangerous.
The content of the invention
In order to solve the above technical problems, the object of the present invention is to provide a kind of current over-load protector, can be in protector
The bimetal leaf inside protector is not resetted after overloading, its reset can be just made only after cutting off the power, ensure that
Personnel and the safety of circuit.
To reach above-mentioned purpose, one aspect of the present invention is：A kind of current over-load protector is provided, including
The upper cover and base mutually riveted, power input terminal and power output terminal are installed on base and stretch out base, bimetallic
Piece one end is connected with power output terminal, and the fixed movable contact of the other end, stationary contact is correspondingly arranged on power input terminal, the bottom
A groove has also been opened up on seat, has installed a PTC heating plate, the PTC heating plates both ends difference in the groove location additional
Input terminal and lead-out terminal are provided with, the input terminal is connected with power input terminal, and the lead-out terminal and power supply are defeated
Go out terminal to be connected.
Preferably, installation support plate is additionally provided between the upper cover of the current over-load protector and base.
Preferably, the power input terminal and power output terminal, which are stretched out on one end of base, is respectively arranged with installation
Hole.
Preferably, it is provided with lock screw on the mounting hole of the power input terminal and power output terminal.
Preferably, the input terminal at the PTC heating plates both ends and lead-out terminal are respectively arranged with U-shaped hole, the power supply
Matching hole is correspondingly arranged on input terminal and power output terminal respectively, the input terminal passes through riveting with power input terminal
Nail is connected and is installed on base, and the lead-out terminal by rivet interlacement and is installed on base with power output terminal.
Preferably, the current over-load protector on be additionally provided with installation nut.
The beneficial effects of the invention are as follows：1. install PTC heating plates additional in protector, double gold of PTC heating plates and protector
Belong to piece to be arranged in parallel, during normal operation, since PTC heating sheet resistances are larger, electric current, to electric power supply, works as hair by bimetal leaf
During raw overload, sheet metal deforms, and circuit is cut in movable contact and stationary contact separation, and electric current is formed back through PTC heating plates at this time
Road, PTC heating plates generate heat after being powered, and keep bimetal leaf beside it to make bimetal leaf can not be because extensive in the condition of high temperature
Complex deformation and reset, only after cutting off the power, bimetal leaf and PTC heating plates cooling after could reset, ensure that repair people
The safety of member；It is easy to operate while improve product 2. protector can be installed to the inside of electrical device product by installation sheet
Aesthetics.
Brief description of the drawings
Fig. 1 is the surface structure schematic diagram of a preferred embodiment of the present invention；
Fig. 2 is the internal structure schematic diagram of the embodiment of the present invention；
Fig. 3 is the detonation configuration figure of shown another embodiment of the present invention；
The mark of each component is as follows in attached drawing：1st, upper cover, 2, base, 3, bimetal leaf, 4, power input terminal, 5, power supply
Lead-out terminal, 6, stationary contact, 7, movable contact, 8, PTC heating plates, 81, input terminal, 82, lead-out terminal, 9, installation support plate, 10,
Long rivet, 11, short rivet, 12, lock screw, 13, installation nut.
Embodiment
Presently preferred embodiments of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Please referring to Fig.1 to Fig. 2, the embodiment of the present invention includes：A kind of current over-load protector, including the upper cover mutually riveted
1 and base 2, connected between upper cover 1 and base 2 by rivet 10, power input terminal 4 and power output terminal 5 are installed on bottom
On seat 1 and base is stretched out, 3 one end of bimetal leaf is connected with power output terminal 5, the fixed movable contact 7 of the other end, and stationary contact 6 is right
It should be arranged on power input terminal 4, a groove has also been opened up on base 1, install a PTC heating in the groove location additional
Piece 8,8 both ends of PTC heating plates are respectively arranged with input terminal 81 and lead-out terminal 82, and the input terminal 81 and power supply are defeated
Enter terminal 4 to be connected, the lead-out terminal 82 is connected with power output terminal 5.
Installation support plate 9 is additionally provided between the upper cover 1 and base 2 of the current over-load protector, the installation support plate 9 can
With installed in the upper end of protector.
The power input terminal 4 and power output terminal 5, which are stretched out on one end of base, is provided with mounting hole, on mounting hole
It is provided with lock screw 12.
The input terminal 81 and lead-out terminal 82 at 8 both ends of PTC heating plates are respectively arranged with U-shaped hole, and the power supply is defeated
Enter and be correspondingly arranged on matching hole on terminal 4 and power output terminal 5 respectively, the input terminal 81 is logical with power input terminal 4
Cross rivet 11 to connect and be installed on base 2, the lead-out terminal 82 is connected and is installed by rivet 11 with power output terminal 5
Nut 13 is installed on base 2, being additionally provided with the current over-load protector.
In use, lock can be passed through by installing support plate 9 or installing the suitable position that protector is fixed on electric appliance by nut 13
Power supply wiring is connected on power input terminal 4 by tight nut 12, and power output terminal 5 is then with appliance wiring, and electrical equipment is just
Often operation when, movable contact 7 and stationary contact 6 contact with each other, electric current through bimetal leaf 3 to electric power supply, it is when the overload occurs, excessive
Electric current make the fever deformation of bimetal leaf 3, movable contact 7 disconnects with stationary contact 6, and electric current is through input power input terminal 4 and inputs
Terminal 81 flows into PTC heating plates 8, then is flowed out through lead-out terminal 82 and power output terminal, and flowing through the electric current of PTC heating plates 8 makes
8 exotherm of PTC heating plates, for its temperature up to 110~150 degree, PTC heating plates 8 make the bimetal leaf 3 beside it also protect
Hold under higher state of temperature, so that the holding deformation of bimetal leaf 3, the state that movable contact 7 and stationary contact 6 remain open,
It ensure that circuit and the security of personnel, only need to be by dump again when maintenance personal need to be detected and repair to electrical device
Carry out maintenance.
An alternative embodiment of the invention is shown in Fig. 3, and the installation support plate 9 can be arranged at the upper end of protector, make whole
A compacter beauty of device.
The foregoing is merely the embodiment of the present invention, is not intended to limit the scope of the invention, every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made, is directly or indirectly used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (6)
- A kind of 1. current over-load protector, it is characterised in that including the upper cover mutually riveted and base, power input terminal and electricity Source output terminal is installed on base and stretches out base, and bimetal leaf one end is connected with power output terminal, and the other end is fixed dynamic Contact, stationary contact are correspondingly arranged on power input terminal, it is characterised in that a groove has also been opened up on the base, it is described Installing a PTC heating plate in groove location additional, the PTC heating plates both ends are respectively arranged with input terminal and lead-out terminal, The input terminal is connected with power input terminal, and the lead-out terminal is connected with power output terminal.
- A kind of 2. current over-load protector according to claim 1, it is characterised in that the current over-load protector it is upper Installation support plate is additionally provided between lid and bottom seat.
- 3. a kind of current over-load protector according to claim 1, it is characterised in that the power input terminal and power supply Lead-out terminal, which is stretched out on one end of base, is respectively arranged with mounting hole.
- 4. a kind of current over-load protector according to claim 3, it is characterised in that the power input terminal and power supply Lock screw is provided with the mounting hole of lead-out terminal.
- A kind of 5. current over-load protector according to claim 1, it is characterised in that the PTC heating plates both ends it is defeated Enter terminal and lead-out terminal is respectively arranged with U-shaped hole, be correspondingly arranged respectively on the power input terminal and power output terminal Have a matching hole, the input terminal by rivet interlacement and is installed on base with power input terminal, the lead-out terminal with Power output terminal is by rivet interlacement and is installed on base.
- A kind of 6. current over-load protector according to claim 1, it is characterised in that the current over-load protector it is upper It is additionally provided with installation nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711488886.9A CN108010822A (en) | 2017-12-30 | 2017-12-30 | A kind of current over-load protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711488886.9A CN108010822A (en) | 2017-12-30 | 2017-12-30 | A kind of current over-load protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108010822A true CN108010822A (en) | 2018-05-08 |
Family
ID=62049394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711488886.9A Pending CN108010822A (en) | 2017-12-30 | 2017-12-30 | A kind of current over-load protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108010822A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957061A (en) * | 2012-11-30 | 2013-03-06 | 东莞市凯恩电子科技有限公司 | Manually reset overload and overtemperature protection power socket |
| CN202872334U (en) * | 2012-10-25 | 2013-04-10 | 东莞市凯恩电子科技有限公司 | Manually-reset overload overtemperature early-warning protective device |
| CN202871701U (en) * | 2012-10-24 | 2013-04-10 | 东莞市凯恩电子科技有限公司 | Manual-reset overload temperature protector |
| CN202888543U (en) * | 2012-11-15 | 2013-04-17 | 东莞市凯恩电子科技有限公司 | Manual reset overload overtemperature protection socket |
| CN104505312A (en) * | 2014-06-06 | 2015-04-08 | 浙江磐安中最电器有限公司 | Novel overcurrent protector |
| CN104752114A (en) * | 2015-04-21 | 2015-07-01 | 姚家米 | Overcurrent, overload and overheat protector |
| CN207637730U (en) * | 2017-12-30 | 2018-07-20 | 浙江磐安中最电器有限公司 | A kind of current over-load protector |
-
2017
- 2017-12-30 CN CN201711488886.9A patent/CN108010822A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202871701U (en) * | 2012-10-24 | 2013-04-10 | 东莞市凯恩电子科技有限公司 | Manual-reset overload temperature protector |
| CN202872334U (en) * | 2012-10-25 | 2013-04-10 | 东莞市凯恩电子科技有限公司 | Manually-reset overload overtemperature early-warning protective device |
| CN202888543U (en) * | 2012-11-15 | 2013-04-17 | 东莞市凯恩电子科技有限公司 | Manual reset overload overtemperature protection socket |
| CN102957061A (en) * | 2012-11-30 | 2013-03-06 | 东莞市凯恩电子科技有限公司 | Manually reset overload and overtemperature protection power socket |
| CN104505312A (en) * | 2014-06-06 | 2015-04-08 | 浙江磐安中最电器有限公司 | Novel overcurrent protector |
| CN104752114A (en) * | 2015-04-21 | 2015-07-01 | 姚家米 | Overcurrent, overload and overheat protector |
| CN207637730U (en) * | 2017-12-30 | 2018-07-20 | 浙江磐安中最电器有限公司 | A kind of current over-load protector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102780206B (en) | Electric leakage detection protecting circuit | |
| CN201966578U (en) | Arc extinguishing type electrical fireproof short circuit protection device | |
| CN201270377Y (en) | Safe type power distribution cabinet | |
| CN207637730U (en) | A kind of current over-load protector | |
| CN103605386A (en) | Electric appliance control cabinet capable of automatic heat dissipation | |
| CN203647081U (en) | Cooking utensil and safety protection device for cooking utensil | |
| CN108010822A (en) | A kind of current over-load protector | |
| CN202495693U (en) | Distribution box with automatic heat-radiation function | |
| CN202975291U (en) | Load case | |
| CN205646577U (en) | Portable multi -functional maintenance box | |
| CN206323120U (en) | High-power quick electric fire current-limiting protector | |
| CN205488009U (en) | Built -in protector of two voltage electric currents | |
| CN103594935A (en) | Multi-open-door intelligent integrated power-distribution cabinet | |
| CN206490316U (en) | A kind of novel capacitor box | |
| CN203312155U (en) | Non-self-reset pressure switch for household electrical appliances | |
| CN203179828U (en) | Household fuse box | |
| CN201937846U (en) | Universal intelligent heating device for self-service equipment | |
| CN110112700A (en) | Current overload protection maintaining method | |
| CN204792666U (en) | Fuse -element malfunction alerting ware | |
| CN104834337A (en) | Novel switch cabinet | |
| CN204117924U (en) | A kind of open-type load switch | |
| CN207264227U (en) | Protective relaying device automatic air cooling system | |
| CN205789585U (en) | A kind of power ampere holotype pull-switch device | |
| CN102570397A (en) | Motor working protection device | |
| CN204689278U (en) | The digital control housing of elevator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |