CN102157302A - Miniature bimetallic strip heat protector - Google Patents
Miniature bimetallic strip heat protector Download PDFInfo
- Publication number
- CN102157302A CN102157302A CN2011100667878A CN201110066787A CN102157302A CN 102157302 A CN102157302 A CN 102157302A CN 2011100667878 A CN2011100667878 A CN 2011100667878A CN 201110066787 A CN201110066787 A CN 201110066787A CN 102157302 A CN102157302 A CN 102157302A
- Authority
- CN
- China
- Prior art keywords
- heat protector
- miniature
- fixed
- portable plate
- fixed head
- 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.)
- Granted
Links
- 230000001012 protector Effects 0.000 title claims abstract description 28
- 239000003822 epoxy resin Substances 0.000 claims abstract description 6
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 6
- 238000001746 injection moulding Methods 0.000 claims abstract description 5
- 238000005516 engineering process Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 abstract description 7
- 238000003466 welding Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The invention relates to a heat protector which is combined in a motor and an electrical appliance, in particular to a miniature bimetallic strip heat protector. The miniature bimetallic strip heat protector comprises a shell, a movable contact, a bimetallic strip, a fixed plate, a movable plate, an insulation piece, a fixed contact, epoxy resin and a lead, and is technically characterized in that: the insulation piece is fixed on the movable plate by an injection molding process to form an insulation support; and the insulation support is connected with the fixed plate by a boss on the insulation piece, namely the boss is arranged on the insulation piece and is inserted into a through hole of the movable plate. The miniature bimetallic strip heat protector has the characteristics of compact structure, small volume, firm fixation and high insulativity.
Description
Technical field:
The present invention relates to a kind of thermal protector that is combined in motor and the electrical equipment; relate in particular to a kind of miniature bimetal plate heat protector; this protector is a kind of when predefined temperature is exceeded; its moving contact that has just is opened; be unlikely to overheated electric member with the protection electric equipment, be mainly used in household appliance technical field.
Background technology:
Existing bimetal plate heat protector is made up of shell, portable plate assembly (portable plate, moving contact), fixed head, bimetal leaf, insulating part assembly (static contact, insulating part), lead and epoxy resin.Its portable plate assembly adopts traditional spot-welding technology with being connected of fixed head, but because wear to electrodes, the firm degree of spot welding and positional precision are difficult to guarantee, cause an elastic force of postwelding portable plate that very big deviation is arranged, and make that the thermal protector consistency of performance is poor.Insulating part and fixed head connect employing metal fixed head support and connect, because insulating properties reduces, make that the thermal protector volume is bigger.
Summary of the invention:
The invention provides a kind of simple in structure, good manufacturability, qualification rate height, miniature bimetal plate heat protector that precision is high.
The present invention is achieved by the following technical solution: a kind of miniature bimetal plate heat protector, comprise shell, moving contact, bimetal leaf, fixed head, portable plate, insulating part, fixed contact, epoxy resin and lead, its major technique feature is that insulating part is fixed on by Shooting Technique and forms insulating support on the portable plate, insulating support adopts the boss on the insulating part to be connected with fixed head, be that insulating part is provided with boss, insert in the portable plate through hole;
Described bimetal leaf is positioned between two clamps on the portable plate;
Described fixed contact is integrated fixed contact and fixed head by covering silver-colored technology by the fixed head front end;
Described portable plate inclination injection moulding;
Described shell is provided with temperature-sensitive face sign, and promptly non-temperature-sensitive face is an arc chord angle.
The invention has the beneficial effects as follows: the present invention utilizes the boss of insulating part lower surface and detent that portable plate and fixed head are fixed, have that compact conformation, volume are little, the characteristics of fixation, good insulating, adopt no spot welding assembly technology to make thermal protector, the temperature consistency is better; The fixed head front end adopts and covers silver-colored technology, and fixed head and fixed contact are united two into one, and has reduced assembly technology; Fixed head is connected with insulating part boss A with portable plate, has strengthened the insulation distance between the conductive component, has also reduced the volume of thermal protector; Bimetal leaf adopts two clamps on the portable plate to locate, and has avoided the vibration of bimetal leaf in the magnetic field, makes the thermal protector noiselessness; Portable plate is with fixing inclination angle injection moulding, guarantees portable plate pressure and highly consistent after insulating support and the fixed head combination of components with this.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of insulating support and fixed head;
Fig. 3 is the structural representation of boss;
Fig. 4 is the structural representation that is provided with the shell of temperature-sensitive face sign.
Embodiment:
As Fig. 1-shown in Figure 4, the present invention is made up of shell 1, moving contact 2, fixed contact 3, portable plate 4, bimetal leaf 5, fixed head 6, insulating part 7, epoxy resin 8 and lead 9.Fixed head 6 has conductivity, and an end is connected with external circuit, and the other end is a fixed contact 3; Portable plate 4 has elasticity and conductivity, is furnished with moving contact 2 at the one end; The other end and an insulating part 7 are formed insulating support by Shooting Technique, and the terminal that stretches out is connected with external circuit.Portable plate 4 is with fixing inclination angle injection moulding, guarantees the consistency of elastic force after insulating support and the fixed head combination of components with this.Utilize the boss 10 and the detent 11 of insulating part 7 lower surfaces that portable plate 4 is fixing with fixed head 6.Bimetal leaf 5 is fixed between portable plate 4 liang of clamp 4-1,4-2, has avoided the vibration of bimetal leaf in the magnetic field, makes the thermal protector noiselessness; behind the welding lead 9, said modules is inserted in the shell 1, sealed with epoxy resin 8; shell is provided with temperature-sensitive face sign, and promptly non-temperature-sensitive face is an arc chord angle 12.When its temperature reached predetermined value, bimetal leaf 5 reversed rapidly, and moving contact 2 and fixed contact 3 are separated, and cut off the controlled electric appliance power supply, reached the electrical equipment overtemperature protection.Because above-mentioned thermal protector adopts insulating part boss 10 that fixed head is fixed on the insulating part; improved insulating properties; and the thermal protector volume is dwindled; simultaneously; no current spot-welding technology in this protector assembling process; the consistency of thermal protector is improved, and this thermal protector has that compact conformation, volume are little, the advantage of high conformity.
Claims (5)
1. miniature bimetal plate heat protector; comprise shell, moving contact, bimetal leaf, fixed head, portable plate, insulating part, fixed contact, epoxy resin and lead; it is characterized in that insulating part is fixed on by Shooting Technique forms insulating support on the portable plate; insulating support adopts the boss on the insulating part to be connected with fixed head; be that insulating part is provided with boss, insert in the portable plate through hole.
2. a kind of miniature bimetal plate heat protector as claimed in claim 1 is characterized in that described bimetal leaf is positioned between two clamps on the portable plate.
3. a kind of miniature bimetal plate heat protector as claimed in claim 1 is characterized in that described fixed contact is integrated fixed contact and fixed head by covering silver-colored technology by the fixed head front end.
4. a kind of miniature bimetal plate heat protector as claimed in claim 1 is characterized in that described portable plate inclination injection moulding.
5. a kind of miniature bimetal plate heat protector as claimed in claim 1 is characterized in that described shell is provided with temperature-sensitive face sign, and promptly non-temperature-sensitive face is an arc chord angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110066787 CN102157302B (en) | 2011-03-18 | 2011-03-18 | Miniature bimetallic strip heat protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110066787 CN102157302B (en) | 2011-03-18 | 2011-03-18 | Miniature bimetallic strip heat protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102157302A true CN102157302A (en) | 2011-08-17 |
| CN102157302B CN102157302B (en) | 2013-08-14 |
Family
ID=44438726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110066787 Active CN102157302B (en) | 2011-03-18 | 2011-03-18 | Miniature bimetallic strip heat protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102157302B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104576195A (en) * | 2013-10-24 | 2015-04-29 | 何春武 | Backpack-type thermal protector |
| CN104752114A (en) * | 2015-04-21 | 2015-07-01 | 姚家米 | Overcurrent, overload and overheat protector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2179630Y (en) * | 1993-11-19 | 1994-10-12 | 项金财 | Bimetallic strip thermal protector |
| DE102005001371A1 (en) * | 2005-01-12 | 2006-07-20 | Marcel Hofsaess | Thermal switch connection box for external and internal connections has heat moldable injection molding made of plastic or another insulating material and at least two extruded terminals, which are insulated from each other |
| CN201130636Y (en) * | 2007-12-04 | 2008-10-08 | 常光友 | Heat protector |
| CN201374284Y (en) * | 2009-03-18 | 2009-12-30 | 杭州富阳华裕控制电器厂 | Micro bimetal thermal protector |
| CN202013849U (en) * | 2011-03-18 | 2011-10-19 | 杭州富阳华裕控制电器厂 | Micro bimetallic strip heat protector |
-
2011
- 2011-03-18 CN CN 201110066787 patent/CN102157302B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2179630Y (en) * | 1993-11-19 | 1994-10-12 | 项金财 | Bimetallic strip thermal protector |
| DE102005001371A1 (en) * | 2005-01-12 | 2006-07-20 | Marcel Hofsaess | Thermal switch connection box for external and internal connections has heat moldable injection molding made of plastic or another insulating material and at least two extruded terminals, which are insulated from each other |
| CN201130636Y (en) * | 2007-12-04 | 2008-10-08 | 常光友 | Heat protector |
| CN201374284Y (en) * | 2009-03-18 | 2009-12-30 | 杭州富阳华裕控制电器厂 | Micro bimetal thermal protector |
| CN202013849U (en) * | 2011-03-18 | 2011-10-19 | 杭州富阳华裕控制电器厂 | Micro bimetallic strip heat protector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104576195A (en) * | 2013-10-24 | 2015-04-29 | 何春武 | Backpack-type thermal protector |
| CN104752114A (en) * | 2015-04-21 | 2015-07-01 | 姚家米 | Overcurrent, overload and overheat protector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102157302B (en) | 2013-08-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG FUFENG ELECTRICAL APPLIANCE CO., LTD. Free format text: FORMER OWNER: HANGZHOU FUYANG HUAYU CONTROL ELECTRIC APPLIANCE FACTORY Effective date: 20130428 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20130428 Address after: 311400, No. 1197 West Park Road, Jinqiao Industrial Function Zone, Hangzhou City, Zhejiang, Fuyang Applicant after: ZHEJIANG FUFENG ELECTRICAL APPLIANCES CO.,LTD. Address before: 311400, No. 1197 West Park Road, Jinqiao Industrial Function Zone, Zhejiang, Fuyang Applicant before: HANGZHOU FUYANG HUAYU CONTROL ELECTRICAL APPLIANCE FACTORY |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Micro bimetallic sheet thermal protector Effective date of registration: 20231008 Granted publication date: 20130814 Pledgee: The Bank of Hangzhou Fuyang branch of the new Limited by Share Ltd. Pledgor: ZHEJIANG FUFENG ELECTRICAL APPLIANCES CO.,LTD. Registration number: Y2023330002227 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |