CN202189729U - Micro bimetal sheet heat protector - Google Patents
Micro bimetal sheet heat protector Download PDFInfo
- Publication number
- CN202189729U CN202189729U CN2011203070559U CN201120307055U CN202189729U CN 202189729 U CN202189729 U CN 202189729U CN 2011203070559 U CN2011203070559 U CN 2011203070559U CN 201120307055 U CN201120307055 U CN 201120307055U CN 202189729 U CN202189729 U CN 202189729U
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- CN
- China
- Prior art keywords
- bimetal
- stator
- sheet
- heat protector
- boss
- 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
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Abstract
The utility model relates to a heat protector combined in a motor or an electric apparatus, in particular to a micro bimetal sheet heat protector, which comprises an outer shell, a moving contact, a bimetal piece, a stator, a rotor, a silver sheet base, a static contact sheet, epoxy resin and leads. The main technical characteristics are as follows: the bimetal sheet is fixed between the two clamps of the rotor, the boss of the front end of the stator slopes down, a supporting column and metal supports are arranged on the stator, the two sides of the bimetal sheet are respectively in an arc shape, and the width of the boss of the front end of the stator is less than that of the body. According to the utility model, as the boss of the front end of the fixed sheet is welded with the moving contact, the influence of bimetal sheet to spot welding is eliminated, and the heat protector has good temperature consistency; and as the bimetal sheet is positioned by the clamps with a certain pressure on the rotor, the vibration of the bimetal sheet in a magnetic field is avoided, and further, heat protection has no noise.
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, and is unlikely to overheated electric member with the protection electric equipment, is mainly used in household appliance technical field.
Background technology:
Existing bimetal plate heat protector is made up of shell, moving contact, bimetal leaf, metallic support sheet, insulating part, static contact, epoxy resin and lead.Its bimetal leaf one end welding moving contact, the other end is welded on the boss of metallic support.Very big when spot welding of this structure bimetal leaf and assembling to the product temperature influence, make that thermal protector temperature consistency is poor.
Summary of the invention:
The utility model provides a kind of simple in structure, good manufacturability, qualification rate is high, precision is high miniature bimetal plate heat protector.
The utility model is realized through following technical scheme: a kind of miniature bimetal plate heat protector; Comprise shell, moving contact, bimetal leaf, stator, moving plate, silver strip seat, static contact, epoxy resin and lead, its major technique characteristic is that bimetal leaf is fixed between two clamps of moving plate; The boss of said stator front end is downward-sloping; Stator is provided with pillar and metallic support; Described bimetal leaf both sides are designed for arc; Said stator front end width boss width is littler than body.
The utility model utilizes stator front end boss to be connected with moving plate spot welding, has eliminated the influence of spot welding to bimetal leaf, makes thermal protector, and the temperature consistency is better; Bimetal leaf adopts two on the moving plate to have the clamp of certain pressure to locate, and has avoided the vibration of bimetal leaf in the magnetic field, makes the thermal protector noiselessness; The arc design is adopted in the bimetal leaf both sides, has reduced the resistance of shell both sides when product is packed shell into; Stator front end boss is downward-sloping, makes moving plate and stator point postwelding that the moving contact on the static contact and moving plate is combined closely; Stator front end width boss width is littler than body, can avoid the influence of shell to moving plate and bimetal leaf when penetrating shell.Stator front end boss is downward-sloping, and the some postwelding makes moving contact and static contact produce pressure.Adjustable gaps joint between stator upper supporting column and the bimetal leaf is effectively improved the consistency of product temperature, has improved product percent of pass greatly.Bimetal leaf can load and unload, and makes product can realize the change of temperature through the bimetal leaf of the different temperatures of packing into.
Description of drawings:
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of moving plate;
Fig. 3 is the structural representation of stator.
Embodiment:
Like Fig. 1, Fig. 2, shown in Figure 3, this miniature bimetal plate heat protector is made up of shell 1, moving plate 2, bimetal leaf 3, stator 4, moving contact 5, silver strip seat 6, epoxy resin 7, static contact 8 and lead 9.Bimetal leaf 3 is fixed between the two clamp 2-1,2-2 of moving plate 2; The boss 4-1 of said stator 4 front ends is downward-sloping; Stator is provided with pillar 4-2 and metallic support 4-3,4-4; Described bimetal leaf both sides are designed for arc; Said stator front end width boss width is littler than body.Silver strip seat 6 fuses through injection moulding and static contact 8, and silver strip seat 6 stretches in metallic support 4-3 on the stator, the 4-4 draw-in groove, and metallic support inward at both ends folding and stretches into inner silver strip seat 6 riveted and fixed.Moving plate one end riveted joint moving contact; The other end is connected through spot-welding technology with stator; Bimetal leaf is fixed on the moving plate between two clamp 2-1, the 2-2, has eliminated the influence of spot welding to bimetal leaf, makes that this thermal protector temperature consistency is better; After stator and static contact weld a lead 9 respectively, this assembly is inserted shell seal with epoxy resin 7.Adjustable gaps joint between stator upper supporting column and the bimetal leaf is effectively improved the consistency of product temperature.
Claims (4)
1. a miniature bimetal plate heat protector comprises shell, moving contact, bimetal leaf, stator, moving plate, silver strip seat, static contact, epoxy resin and lead, it is characterized in that bimetal leaf is fixed between two clamps of moving plate.
2. a kind of miniature bimetal plate heat protector as claimed in claim 1 is characterized in that the boss of said stator front end is downward-sloping; Stator is provided with pillar and metallic support.
3. a kind of miniature bimetal plate heat protector as claimed in claim 1 is characterized in that described bimetal leaf both sides design for arc.
4. according to claim 1 or claim 2 a kind of miniature bimetal plate heat protector is characterized in that said stator front end width boss width is littler than body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203070559U CN202189729U (en) | 2011-08-20 | 2011-08-20 | Micro bimetal sheet heat protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203070559U CN202189729U (en) | 2011-08-20 | 2011-08-20 | Micro bimetal sheet heat protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202189729U true CN202189729U (en) | 2012-04-11 |
Family
ID=45921165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203070559U Expired - Lifetime CN202189729U (en) | 2011-08-20 | 2011-08-20 | Micro bimetal sheet heat protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202189729U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104752114A (en) * | 2015-04-21 | 2015-07-01 | 姚家米 | Overcurrent, overload and overheat protector |
| CN109817479A (en) * | 2019-02-27 | 2019-05-28 | 嵊州市甘霖王氏热保护器厂 | A kind of manufacturing method of thermal protector |
-
2011
- 2011-08-20 CN CN2011203070559U patent/CN202189729U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104752114A (en) * | 2015-04-21 | 2015-07-01 | 姚家米 | Overcurrent, overload and overheat protector |
| CN109817479A (en) * | 2019-02-27 | 2019-05-28 | 嵊州市甘霖王氏热保护器厂 | A kind of manufacturing method of thermal protector |
| CN109817479B (en) * | 2019-02-27 | 2023-10-31 | 嵊州市甘霖王氏热保护器厂 | Manufacturing method of thermal protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120411 |
|
| CX01 | Expiry of patent term |