CN2596533Y - Heat protector - Google Patents
Heat protector Download PDFInfo
- Publication number
- CN2596533Y CN2596533Y CN 02286453 CN02286453U CN2596533Y CN 2596533 Y CN2596533 Y CN 2596533Y CN 02286453 CN02286453 CN 02286453 CN 02286453 U CN02286453 U CN 02286453U CN 2596533 Y CN2596533 Y CN 2596533Y
- Authority
- CN
- China
- Prior art keywords
- utility
- latch plate
- model
- wiring point
- thermal 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a heat protector, which relates to the technical field of heat protection of an electric apparatus. The utility model is composed of a conductive base plate, a temperature sensing element composed of bimetallic strips, a spring plate, terminal points and leading wires connected to the terminal points, wherein, the temperature sensing element is arranged between the spring plate and the conductive base plate; the terminal points are insulated with each other; the spring plate has a composite structure of double-layer metal; the spring plate with the composite structure of double-layer metal is composed of beryllium bronze spring strips which are connected in parallel and copper belt strips. The utility model has the advantage of simple manufacture. The utility model can solve the problem of protection for electric apparatuses during high current operation. Besides, the utility model can solve the temperature drift when the utility model is used. The utility model has more reliable protection for an electric apparatus when the utility model is arranged in the electric apparatus.
Description
Technical field
The utility model relates to a kind of thermal protector that uses on electrical equipment.
Background technology
In the prior art, most of thermal protector operating currents are not more than 7 amperes, can't protect operating current at more powerful monophase machine more than 7 amperes effectively.According to above-mentioned situation; there is a kind of application number to be: 992570255 big electrical current heat protector; it is arranged on electrical equipment inside; can protect motor according to the heating situation of electrical equipment; played better action; but this thermal protector can only be applied to electric current 12 amperes with interior medium and small electrical equipment on, can not solve the heat protection problem of high-power electric appliance more.
Summary of the invention
Technical problem to be solved in the utility model is: design a kind of thermal protector, with the heat protection problem of the electrical equipment that solves bigger electric current.
The technical scheme of the utility model technical solution problem is: the temperature-sensing element that it is made by conductive soleplate, bimetal leaf, latch plate, wiring point and the lead that is connected with wiring point are formed, temperature-sensing element is arranged between latch plate and conductive soleplate, insulated from each other between wiring point, it is characterized in that: latch plate is the double-level-metal composite construction; The latch plate of double-level-metal composite construction by and the beryllium bronze spring lamination and the copper sheet that connect constitute.
Latch plate is provided with two or more contacts.
The wiring point that wiring point can be the wiring point corresponding with the contact and also is provided with on conductive soleplate.
Three salient points point-blank can be set not, the isosceles triangle that the line of three salient points that are provided with on the latch plate constitutes on the latch plate.
Owing to adopt technique scheme, the utility model is made simple, has solved the utility model protection to electrical equipment when big current work, and to the drift of temperature, it is installed in the electrical equipment the protection of electrical equipment will be more reliable can solve the utility model work the time.
Description of drawings
The example structure schematic diagram of Fig. 1 on single-phase electrical equipment, using;
The example structure schematic diagram of Fig. 2 on three-phase electric apparatus, using;
Fig. 3 and Fig. 4 are respectively the end view of Fig. 1, Fig. 2.
Among the figure: 1, conductive soleplate; 2, temperature-sensing element; 3, latch plate; 4-5, contact; 6-9, wiring point; The 10-11 lead; 12, salient point; 13, beryllium bronze spring lamination; 14, copper sheet; 15-17, lead.
Embodiment
In conjunction with Fig. 1, Fig. 3, a kind of thermal protector that uses at single-phase electrical equipment, the temperature-sensing element 2 that it is made by conductive soleplate 1, bimetal leaf, latch plate 3, wiring point 6,7 and the lead 10,11 that is connected with wiring point 6,7 are formed, one end of conductive soleplate 1 is connected with an end of latch plate 3, and temperature-sensing element 2 is arranged on latch plate 3 and 1 of conductive soleplate and is placed on the conductive soleplate 1; Latch plate 3 is the double-level-metal composite construction, the latch plate 3 of double-level-metal composite construction by and the beryllium bronze spring lamination 13 and the copper sheet 14 that connect constitute.Because latch plate 3 is two-layer composite, the shunting of beryllium bronze spring lamination 13 and copper sheet 14 has guaranteed the operate as normal of electrical equipment this thermal protector in 18 amperes.Latch plate 3 is provided with two contacts 4,5, and wiring point 6 is the wiring point corresponding with two contacts 4,5, and wiring point 7 is welded on the conductive soleplate 1, and 6,7 of wiring points are insulated from each other.This thermal protector can also adopt the structure of corresponding two wiring points in two contacts, can also obtain identical effect.
In conjunction with Fig. 2; the thermal protector that on three-phase electric apparatus, uses; its wiring point is a wiring point 7,8,9; 7,8,9 mutually insulateds of wiring point; wiring point 7 is welded on the conductive soleplate 1; the wiring point of two contacts, 4,5 correspondences that are provided with on the latch plate 3 is a wiring point 8,9, and lead 15,16,17 is connected with wiring point 7,8,9 respectively, and other structure is with shown in Figure 1 identical.The thermal protector that on three-phase electric apparatus, uses, the structure of three contacts also can be adopted in the contact that is provided with on the latch plate 3, and the wiring point corresponding with three contacts is wiring point 7,8,9.Present embodiment is installed in the electrical equipment, and when electrical work, because latch plate 3 and base plate 1 conduction, latch plate 3 and base plate 1 are equivalent to 0 line, and the Y-connection that has so just constituted electrical equipment is to electric power supply.
In conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4; this thermal protector can be provided with not three salient points 12 point-blank on the top of latch plate 3; the line of three salient points 12 that the top of latch plate 3 is provided with constitutes isosceles triangle; this way can make the thermal protector of making by present embodiment when temperature reaches certain value in the electrical equipment; can guarantee in the plane of three salient points 12 decision, to keep and the contacting of temperature-sensing element 2, prevent the temperature drift of this thermal protector appearance effectively.
In conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, this thermal protector makes electrical equipment overheated when current overload or other reason, and the deformed movement of temperature-sensing element 2 is separated two contacts 4,5 on the latch plate 3 and wiring point 6 or wiring point 8,9, stops the power supply to electrical equipment.
Claims (6)
1, a kind of thermal protector; the temperature-sensing element (2) that it is made by conductive soleplate (1), bimetal leaf, latch plate (3), wiring point and the lead that is connected with wiring point are formed; temperature-sensing element (2) is arranged between latch plate (3) and conductive soleplate (1); insulated from each other between wiring point, it is characterized in that: described latch plate (3) is the double-level-metal composite construction.
2, a kind of thermal protector according to claim 1 is characterized in that: the latch plate of said double-level-metal composite construction (3) by and the beryllium bronze spring lamination (13) that connects and copper sheet (14) constitute.
3, a kind of thermal protector according to claim 1 is characterized in that: said latch plate (3) is provided with two contacts (4,5) or plural contact.
4, a kind of thermal protector according to claim 1 is characterized in that: said wiring point can be a corresponding wiring point (6) or two wiring points (8,9) in two contacts (4,5) that upward are provided with latch plate (3) and reach a wiring point (7) that also is provided with on conductive soleplate (1).
5, a kind of thermal protector according to claim 1 is characterized in that: three salient points (12) point-blank can be set on the said latch plate (3) not.
6, a kind of thermal protector according to claim 5 is characterized in that: the line of going up three salient points (12) that are provided with of said latch plate (3) constitutes isosceles triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02286453 CN2596533Y (en) | 2002-12-03 | 2002-12-03 | Heat protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02286453 CN2596533Y (en) | 2002-12-03 | 2002-12-03 | Heat protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2596533Y true CN2596533Y (en) | 2003-12-31 |
Family
ID=33747150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02286453 Expired - Fee Related CN2596533Y (en) | 2002-12-03 | 2002-12-03 | Heat protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2596533Y (en) |
-
2002
- 2002-12-03 CN CN 02286453 patent/CN2596533Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |