CN202013849U - Micro bimetallic strip heat protector - Google Patents
Micro bimetallic strip heat protector Download PDFInfo
- Publication number
- CN202013849U CN202013849U CN2011200734524U CN201120073452U CN202013849U CN 202013849 U CN202013849 U CN 202013849U CN 2011200734524 U CN2011200734524 U CN 2011200734524U CN 201120073452 U CN201120073452 U CN 201120073452U CN 202013849 U CN202013849 U CN 202013849U
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- China
- Prior art keywords
- heat protector
- fixed
- portable plate
- fixed head
- insulating part
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- 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
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Abstract
A micro bimetallic strip heat protector relates to a heat protector combined in a motor and an electrical appliance, which comprises a casing, a moving contact, a bimetallic strip, a fixed plate, a movable plate, an insulation part, a fixed contact, an epoxy resin and a lead. The micro bimetallic strip heat protector is technically characterized in that the insulation part is fixed on a movable plate through the injection mould to form an insulation support which is connected with the fixed plate through a boss on the insulation part, namely, the insulation part is provided with the boss which is inserted into a through hole on the movable plate. The micro bimetallic strip heat protector has the advantages of compact structure, small volume, firm fixation and good insulation.
Description
Technical field:
The utility model 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 utility model provides a kind of simple in structure, good manufacturability, qualification rate height, miniature bimetal plate heat protector that precision is high.
The utility model 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 beneficial effects of the utility model are: the utility model 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 utility model;
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 utility model 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 |
|---|---|---|---|
| CN2011200734524U CN202013849U (en) | 2011-03-18 | 2011-03-18 | Micro bimetallic strip heat protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200734524U CN202013849U (en) | 2011-03-18 | 2011-03-18 | Micro bimetallic strip heat protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202013849U true CN202013849U (en) | 2011-10-19 |
Family
ID=44784464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200734524U Expired - Lifetime CN202013849U (en) | 2011-03-18 | 2011-03-18 | Micro bimetallic strip heat protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202013849U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157302A (en) * | 2011-03-18 | 2011-08-17 | 杭州富阳华裕控制电器厂 | Miniature bimetallic strip heat protector |
-
2011
- 2011-03-18 CN CN2011200734524U patent/CN202013849U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157302A (en) * | 2011-03-18 | 2011-08-17 | 杭州富阳华裕控制电器厂 | Miniature bimetallic strip heat protector |
| CN102157302B (en) * | 2011-03-18 | 2013-08-14 | 浙江富风电器有限公司 | Miniature bimetallic strip heat protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111019 Effective date of abandoning: 20130814 |
|
| RGAV | Abandon patent right to avoid regrant |