CN202102964U - Outage delay overheat protector - Google Patents
Outage delay overheat protector Download PDFInfo
- Publication number
- CN202102964U CN202102964U CN2011202339303U CN201120233930U CN202102964U CN 202102964 U CN202102964 U CN 202102964U CN 2011202339303 U CN2011202339303 U CN 2011202339303U CN 201120233930 U CN201120233930 U CN 201120233930U CN 202102964 U CN202102964 U CN 202102964U
- Authority
- CN
- China
- Prior art keywords
- movable contact
- spring
- contact plate
- ptc heater
- heater element
- 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.)
- Expired - Lifetime
Links
- 230000001012 protector Effects 0.000 title claims abstract description 36
- 239000003822 epoxy resin Substances 0.000 claims abstract description 7
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims description 19
- 230000003068 static effect Effects 0.000 claims description 18
- 210000000078 claw Anatomy 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 11
- 238000005485 electric heating Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
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Abstract
The utility model relates to an outage delay overheat protector, which relates to a thermal protector with an internal PTC (positive temperature coefficient) heating element and capable of reserving overheat disconnecting protection. The outage delay overheat protector comprises a casing, a moving contact, a fixed contact, a spring plate, a bimetallic element, an insulating fixing seat, a PTC heating element, a moving contact plate, a moving contact plate wire, a fixed contact plate, a fixed contact plate wire and epoxy resin. One end of the spring plate is provided with the moving contact, the other end of the spring plate is connected to one end of the moving contact plate to be fixed onto the insulating fixing seat by the aid of a fixing pawl of the moving contact plate, and the moving contact plate wire is connected to the other end of the moving contact plate to form a moving contact plate component. The fixed contact plate is preset into the insulating fixing seat, one end of the fixed contact plate is provided with the fixed contact, the fixed contact plate wire is connected to the other end of the fixed contact, the PTC heating element is positioned into a PTC heating element nest inside the insulating fixing seat, and the bimetallic element is arranged between the spring plate and the insulating fixing seat to form a fixing seat component. The moving contact plate component and the fixing seat component are fastened by the aid of the fixing pawl and fixed onto the insulating fixing seat, and accordingly a thermal protector component is formed.
Description
Technical field
What the utility model outage time-delay overheat protector related to is to have built-in PTC heater element; Be scheduled to the thermal protector of thermal cutoff protection, be applicable to that the electric rotating machine, home electrical heater, ligthing paraphernalia, communication apparatus, electronic instrument, instrument etc. of motor, household electrical appliance made the safety device of overtemperature protection.
Background technology
Motor and electric heating appliance adopt overcurrent relay to detect the loaded work piece electric current at present; It belongs to the indirect temperature-measuring protective device; Can not be directly by reflection motor and the inner actual work temperature of electric heating appliance; Exist temperature deviation big, can not control the actual temperature of motor and electric heating appliance effective and reasonable, exactly." the compound motor protecter of current temperature " of applicant application adopts the bimetallic coroner of unit single welding connection member; Product in use; Because the cold and hot exchange of temperature, weld can come off, and causes protector product cisco unity malfunction; And cause protected motor, electric heating appliance not to have effective protection, because of overcurrent, the overheated damage.The predetermined disconnection of bimetallic element in the composite overflow and overheat protector protects the temperature setting to adopt the angle of artificial bending bimetallic element conductive solder piece to regulate setting at present, and the constant temperature qualification rate is low, and production efficiency is low.
To sum up said, the overtemperature protection of electrical equipment at present exists a great hidden danger and is; Temperature begins to raise after electrical equipment breaks down, and thermal protector breaks off appliance circuit after experiencing the protection temperature, and the circuit of electrical equipment breaks off the back temperature to begin to descend; Thermal protector is connected appliance circuit after experiencing recovery temperature; Electrical equipment is in heating/disconnection all the time, in the middle of the circulation of cooling/connection, when near the contact break-make life-span or when flashing the contact just might adhesion; At this moment thermal protector has just lost due overheat protective function, and offending thing just might take place.
Summary of the invention
The purpose of the utility model is to above-mentioned weak point a kind of outage time-delay overheat protector to be provided; Has built-in PTC heater element; Be scheduled to the thermal protector of thermal cutoff protection, the PTC heater element is given the bimetallic element additional heat with constant heating temp, makes bimetallic element must not answer temperature to descend and recover and overturns; Main circuit by protection electrical appliance and equipment all is in off-state for a long time, thereby has guaranteed by the being perfectly safe property of protection electric equipment.
Outage time-delay overheat protector is to take following technical scheme to realize: outage time-delay overheat protector comprises shell, moving contact, fixed contact, spring leaf, bimetallic element, insulation holder, PTC heater element, movable contact spring, movable contact spring lead, static contact, static contact lead and epoxy resin; One end of spring leaf is provided with moving contact, and the fixed claw with movable contact spring after the other end is connected with an end of movable contact spring is fixed on the insulation holder, and the other end of movable contact spring is connected with the movable contact spring lead, constitutes the movable contact spring assembly; Static contact is preset in the insulation holder; One end of static contact is provided with fixed contact, and the other end is connected with the static contact lead, is provided with PTC heater element nest in the insulation holder; The PTC heater element places the insulation holder to be provided with PTC heater element nest; Two conducting surfaces of PTC heater element are connected respectively at the conducting boss of static contact and the electrically conductive elastic sheet of spring leaf, and bimetallic element is arranged between spring leaf and the insulation holder, constitutes the holder assembly.The movable contact spring assembly that connects and holder assembly are embraced firmly on the insulation holder with the fixed claw of movable contact spring setting, formed the thermal protector assembly, fix with epoxy resin after the thermal protector assembly is put shell.
Outage time-delay overheat protector operation principle:
When protected electrical appliance and device fails and generate heat; When the bimetallic element of outage time-delay overheat protector is experienced prefabricated temperature and rapidly counter-rotating is pushed spring leaf open and is made moving contact and fixed contact disconnection; Protected the rapid disconnection of main circuit of electrical appliance and equipment and avoid protected electrical appliance and equipment further to damage; Heating system after main circuit breaks off rapidly (PTC heater element circuit) is started working; The PTC heater element is given the bimetallic element additional heat with constant heating temp; Make bimetallic element must not answer temperature to descend and recover and overturn, protected the main circuit of electrical appliance and equipment all to be in off-state for a long time, thereby guaranteed by the being perfectly safe property of protection electric equipment.Can energized carry out operate as normal after the operate as normal when passing through the outage maintenance after protected electrical appliance and the device fails certainly; This moment should be in the process of outage maintenance; Heating system (the PTC heater element circuit) work of should cutting off the power supply; The PTC heater element can not be given the bimetallic element additional heat; Make bimetallic element can not get additional heat and temperature decline recovery upset, the moving contact of outage time-delay overheat protector and fixed contact closure have reclosed the main circuit of quilt protection electrical appliance and equipment and have recovered normal operating conditions.
Outage time-delay overheat protector is reasonable in design, and compact conformation is a kind of pure temperature mode overheat protector.Owing to be provided with the PTC heater element; When protected electrical appliance and device fails and generate heat; When the bimetallic element of outage time-delay overheat protector is experienced prefabricated temperature and rapidly counter-rotating is pushed spring leaf open and is made moving contact and fixed contact disconnection; Protected the rapid disconnection of main circuit of electrical appliance and equipment and avoid protected electrical appliance and equipment further to damage; Heating system after main circuit breaks off rapidly (PTC heater element circuit) is started working, and the PTC heater element is given the bimetallic element additional heat with constant heating temp, makes bimetallic element must not answer temperature to descend and recover and overturns; Main circuit by protection electrical appliance and equipment all is in off-state for a long time, thereby has guaranteed by the being perfectly safe property of protection electric equipment.
Outage time-delay overheat protector can be made the safety device of overtemperature protection adaptable across the electric rotating machine of motor, household electrical appliance, home electrical heater, ligthing paraphernalia, communication apparatus, electronic instrument, instrument etc.
Description of drawings
Below will combine accompanying drawing that the utility model is described further:
Fig. 1 is an outage time-delay overheat protector front view.
Fig. 2 is an outage time-delay overheat protector vertical view.
Fig. 3 is Fig. 2 time-delay overheat protector vertical view A-A cutaway view that cuts off the power supply.
Embodiment
With reference to accompanying drawing 1,2,3, outage time-delay overheat protector comprises shell 1, fixed contact 2, moving contact 3, spring leaf 4, bimetallic element 5, insulation holder 6, elastic conducting strip 7, PTC heater element 8, static contact 9, movable contact spring 10, epoxy resin 11, movable contact spring lead 12, static contact lead 13, conducting boss 14, spring leaf welding boss 15, moving contact welding boss 16 and fixed claw 17.One end of spring leaf 4 is provided with moving contact 3, and the other end is connected with an end of movable contact spring 10, and the other end of movable contact spring is connected with movable contact spring lead 12, constitutes the movable contact spring assembly; Static contact 9 is preset in the insulation holder 6; One end of static contact is provided with fixed contact 2; The other end is connected with static contact lead 13, places the insulation holder to be provided with PTC heater element nest PTC heater element 8, and two conducting surfaces of PTC heater element 8 are connected respectively at the conducting boss 15 of static contact and the electrically conductive elastic sheet 7 of spring leaf; Bimetallic element 5 is arranged between spring leaf 4 and the insulation holder 6, constitutes the holder assembly; Adopt the fixed claw of movable contact spring 10 settings firmly to schedule on the insulation holder 6 for 17 armfuls movable contact spring assembly that connects and holder assembly.So just formed the thermal protector assembly, it has been put shell 1 back with fixing fixing with epoxy resin 11.
The fixed claw 17 that said movable contact spring 10 is provided with has at least a pair of.
Said PTC heater element 8 adopts the heater element of ceramic PTC heater element or other character.
Claims (3)
1. an outage time-delay overheat protector is characterized in that comprising shell, moving contact, fixed contact, spring leaf, bimetallic element, insulation holder, PTC heater element, movable contact spring, movable contact spring lead, static contact, static contact lead and epoxy resin; One end of spring leaf is provided with moving contact, and the fixed claw with movable contact spring after the other end is connected with an end of movable contact spring is fixed on the insulation holder, and the other end of movable contact spring is connected with the movable contact spring lead, constitutes the movable contact spring assembly; Static contact is preset in the insulation holder; One end of static contact is provided with fixed contact, and the other end is connected with the static contact lead, is provided with PTC heater element nest in the insulation holder; The PTC heater element places the insulation holder to be provided with PTC heater element nest; Two conducting surfaces of PTC heater element are connected respectively at the conducting boss of static contact and the electrically conductive elastic sheet of spring leaf, and bimetallic element is arranged between spring leaf and the insulation holder, constitutes the holder assembly; Movable contact spring assembly that connects and holder assembly adopt the fixed claw of movable contact spring setting to embrace and firmly schedule on the insulation holder, have formed the thermal protector assembly, and the thermal protector assembly adopts epoxy resin to fix after putting shell.
2. outage time-delay overheat protector according to claim 1 is characterized in that the fixed claw of said movable contact spring setting has at least a pair of.
3. outage time-delay overheat protector according to claim 1 is characterized in that said PTC heater element adopts ceramic PTC heater element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202339303U CN202102964U (en) | 2011-07-05 | 2011-07-05 | Outage delay overheat protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202339303U CN202102964U (en) | 2011-07-05 | 2011-07-05 | Outage delay overheat protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202102964U true CN202102964U (en) | 2012-01-04 |
Family
ID=45388968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202339303U Expired - Lifetime CN202102964U (en) | 2011-07-05 | 2011-07-05 | Outage delay overheat protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202102964U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515145A (en) * | 2013-09-29 | 2014-01-15 | 扬州宝珠电器有限公司 | Overheating overcurrent delayed reset protector |
| CN103578850A (en) * | 2013-11-08 | 2014-02-12 | 南京海川电子有限公司 | Multifunctional motor protector |
| CN103824728A (en) * | 2014-03-06 | 2014-05-28 | 东莞市凯恩电子科技有限公司 | Temperature controllable protective tube |
| CN104752114A (en) * | 2015-04-21 | 2015-07-01 | 姚家米 | Overcurrent, overload and overheat protector |
| CN108010798A (en) * | 2016-11-01 | 2018-05-08 | 江苏常胜电器股份有限公司 | Temperature thermal protector |
-
2011
- 2011-07-05 CN CN2011202339303U patent/CN202102964U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515145A (en) * | 2013-09-29 | 2014-01-15 | 扬州宝珠电器有限公司 | Overheating overcurrent delayed reset protector |
| CN103578850A (en) * | 2013-11-08 | 2014-02-12 | 南京海川电子有限公司 | Multifunctional motor protector |
| CN103578850B (en) * | 2013-11-08 | 2015-11-18 | 南京海川电子有限公司 | Protector for electric machine |
| CN103824728A (en) * | 2014-03-06 | 2014-05-28 | 东莞市凯恩电子科技有限公司 | Temperature controllable protective tube |
| CN104752114A (en) * | 2015-04-21 | 2015-07-01 | 姚家米 | Overcurrent, overload and overheat protector |
| CN108010798A (en) * | 2016-11-01 | 2018-05-08 | 江苏常胜电器股份有限公司 | Temperature thermal protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YANGZHOU BAOZHU ELECTRIC APPLIANCE CO., LTD. Free format text: FORMER OWNER: ZHU TIANBING Effective date: 20120717 Owner name: ZHU TIANBING Effective date: 20120717 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120717 Address after: Baoying County town of Jiangsu city of Yangzhou Province Jing 225800 yinglang Industrial Zone Pearl Industrial Park Co-patentee after: Zhu Tianbing Patentee after: Yangzhou Baozhu Electric Applianes Co., Ltd. Address before: 225800 No. 7-25, health Road, Baoying County, Jiangsu, Yangzhou Patentee before: Zhu Tianbing |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120104 |