CN2590159Y - Heat protector - Google Patents
Heat protector Download PDFInfo
- Publication number
- CN2590159Y CN2590159Y CN 02286451 CN02286451U CN2590159Y CN 2590159 Y CN2590159 Y CN 2590159Y CN 02286451 CN02286451 CN 02286451 CN 02286451 U CN02286451 U CN 02286451U CN 2590159 Y CN2590159 Y CN 2590159Y
- Authority
- CN
- China
- Prior art keywords
- latch plate
- utility
- model
- thermal protector
- temperature
- 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 for electric apparatuses. The utility model is composed of an electric conduction bottom plate, a temperature sensing element made of double metal sheets, a spring plate, a wire connection point and a leading wire connected with the wire connection point, wherein, one end of the electric conduction bottom plate is connected with one end of the spring plate; the temperature sensing element is arranged between the spring plate and the electric conduction bottom plate and is placed on the electric conduction bottom plate by a positioning projection; the spring plate is provided with three convex points which are not on the same straight line. The utility model has the advantage of simple manufacture. Besides, the utility model can solve the temperature wandering when the utility model is used. Besides, the utility model can protect electric apparatuses when electric apparatuses are used with large electric current. 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 thermel protection device of electrical equipment.
Background technology
In the prior art, there is a kind of structure of thermal protector to be: by conductive soleplate, the temperature-sensing element that bimetal leaf is made, latch plate, wiring point and the lead that is connected with wiring point are formed, one end of conductive soleplate and an end of latch plate are connected, temperature-sensing element is arranged between latch plate and conductive soleplate, latch plate is provided with two salient points, the central point of these two salient points and fixedly temperature-sensing element the axle center point-blank, but add man-hour, these 3 can not be point-blank, when thermal protector in electrical equipment, when the temperature of electrical equipment reaches certain value, the temperature-sensing element action contacts with two salient points, the promotion latch plate is upspring, and cuts off the electricity supply, and reaches the purpose of protection electrical equipment; Because temperature-sensing element moves the position of rear space each time and all small variation can take place; two salient points of this thermal protector can not all be moved in a plane at every turn; so just caused the drift of this thermal protector temperature, and temperature drift is the important indicator of thermal protector quality.
Summary of the invention
Technical problem to be solved in the utility model is: design a kind of thermal protector, with the technical problem of the temperature drift that solves this product.
The technical scheme of the utility model technical solution problem is: the temperature-sensing element that thermal protector 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; latch plate is provided with salient point, it is characterized in that: described latch plate is provided with not three salient points on same straight line.
The line of three salient points that are provided with of latch plate constitutes isosceles triangle.
Temperature-sensing element protrudes by the location locatees between latch plate and conductive soleplate.
Latch plate is provided with two or more contacts.
The wiring point that wiring point can be a wiring point corresponding with two contacts or two wiring points and also is provided with on conductive soleplate.
Latch plate can be 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.
Owing to adopt technique scheme, can guarantee that three salient points on the latch plate remain and temperature-sensing element contacting in same plane, prevent the temperature drift that this thermal protector occurs effectively.The utility model is made simple, and to the protection of electrical equipment, it is installed in the electrical equipment the protection of electrical equipment will be more reliable in the time of can solving big current work.
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 is the end view of Fig. 1, Fig. 2;
Fig. 4 is the embodiment end view of double-level-metal composite construction for latch plate.
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 protrudes by the location that is provided with and is placed on the conductive soleplate 1.Three not point-blank salient points 12 are set on latch plate 3; The line of going up three salient points 12 that are provided with of latch plate 3 constitutes isosceles triangle; this way can make the electrical current heat protector of making by present embodiment when temperature reaches certain value in the electrical equipment; three salient points 12 on the latch plate 3 can guarantee in the plane of three salient points 12 decision and the contacting of temperature-sensing element 2, prevent the temperature drift that this thermal protector occurs effectively.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.Latch plate 3 can be the single-layer metal structure, also can be double-level-metal composite construction (with reference to Fig. 4), 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 the double-level-metal composite construction, the shunting of beryllium bronze spring lamination 13 and copper sheet 14 can guarantee the operate as normal of electrical equipment this thermal protector in 18 amperes.
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; two contacts, 4,5 corresponding wiring points are wiring point 8,9, lead 15,16,17, are 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.Latch plate 3 also can be double-level-metal composite construction (with reference to Fig. 4).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, when current overload or other reason make electrical equipment overheated, 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 (7)
1, 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); latch plate (3) is provided with salient point, it is characterized in that: described latch plate (3) is provided with not three salient points (12) on same straight line.
2, thermal protector according to claim 1 is characterized in that: the line of three salient points (12) that said latch plate (3) is provided with constitutes isosceles triangle.
3, thermal protector according to claim 1 is characterized in that: said temperature-sensing element (2) protrudes location between latch plate (3) and conductive soleplate (1) by the location.
4, thermal protector according to claim 1 is characterized in that: said latch plate (3) is provided with two contacts (4,5) or plural contact.
5, thermal protector according to claim 1 is characterized in that: the wiring point (7) that said wiring point can be the corresponding wiring point (6) in two contacts (4,5) that go up to be provided with latch plate (3) or two wiring points (8,9) and also is provided with on conductive soleplate (1).
6, thermal protector according to claim 1 is characterized in that: said latch plate (3) can be the double-level-metal composite construction.
7, thermal protector according to claim 6 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02286451 CN2590159Y (en) | 2002-12-03 | 2002-12-03 | Heat protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02286451 CN2590159Y (en) | 2002-12-03 | 2002-12-03 | Heat protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2590159Y true CN2590159Y (en) | 2003-12-03 |
Family
ID=33747148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02286451 Expired - Fee Related CN2590159Y (en) | 2002-12-03 | 2002-12-03 | Heat protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2590159Y (en) |
-
2002
- 2002-12-03 CN CN 02286451 patent/CN2590159Y/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 |