CN204348617U - A kind of built-in overcurrent overheat protector - Google Patents
A kind of built-in overcurrent overheat protector Download PDFInfo
- Publication number
- CN204348617U CN204348617U CN201520014300.5U CN201520014300U CN204348617U CN 204348617 U CN204348617 U CN 204348617U CN 201520014300 U CN201520014300 U CN 201520014300U CN 204348617 U CN204348617 U CN 204348617U
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- China
- Prior art keywords
- layer
- base plate
- fixed contact
- moving contact
- built
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- 230000001012 protector Effects 0.000 title claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 28
- 239000003595 mist Substances 0.000 claims abstract description 8
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910001887 tin oxide Inorganic materials 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 29
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000001307 helium Substances 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 3
- 238000007731 hot pressing Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- NSAODVHAXBZWGW-UHFFFAOYSA-N cadmium silver Chemical compound [Ag].[Cd] NSAODVHAXBZWGW-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Thermally Actuated Switches (AREA)
Abstract
The utility model discloses a kind of built-in overcurrent overheat protector, for by compressor or the motor failure of current when overcurrent overheat operating mode, it comprises the metal shell of bottom opening, the metal base plate of closure bottom opening, be provided with moving contact and reverse when reaching design temperature, lower than the temperature-sensitive plate resetted during design temperature, the fixed contact arranged corresponding to moving contact, and two binding posts; The upper end of two binding posts is each passed through base plate and stretches in the confined space that shell and base plate form, the shaft of two binding posts is connected with described base plate insulated enclosure respectively, described fixed contact is fixedly mounted on the upper end of one of them binding post, in described confined space, envelope has mist, described moving contact, fixed contact are made up of the inside stacked metal level be combined with each other successively of table by least two layers, and superficial layer is siller tin oxide alloy-layer.The utility model can ensure electrical strength and the useful life of protector, and in use can not work the mischief to environment.
Description
Technical field
The utility model relates to a kind of non-electricity protector, particularly relates to a kind of when the electric equipment such as motor, compressor is at overcurrent overheat, energy automatic cut-off power, the built-in overcurrent overheat protector preventing it from burning.
Background technology
Existing built-in overcurrent overheat protector, comprise the metal shell of bottom opening, close the metal base plate of described outer casing bottom opening, be provided with moving contact and reverse when reaching design temperature, lower than the temperature-sensitive plate resetted during design temperature, the fixed contact arranged corresponding to described moving contact, and heater and two binding posts; The upper end of described two binding posts is each passed through described base plate and stretches in the confined space that shell and base plate form, the shaft of described two binding posts is connected with described base plate insulated enclosure respectively, described fixed contact is fixedly mounted on the upper end of one of them binding post, one end of described heater is fixedly mounted on the upper end of another binding post, the other end of heater is fixedly connected with described base plate, and in described confined space, envelope has mist.And existing protector is for ensureing its electrical strength and useful life, and described moving contact, fixed contact are made by Agcdo alloy.
In above-mentioned thermal protector, because moving contact, fixed contact are made by Agcdo alloy, and cadmium element is the non-environmental protection material prohibited, and in use can be worked the mischief to environment by the contact made containing cadmium silver.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of electrical strength and the useful life that can not only ensure protector, and the built-in overcurrent overheat protector that in use can not work the mischief to environment.
For solving the problems of the technologies described above, the utility model adopts so a kind of built-in overcurrent overheat protector, for by compressor or the motor failure of current when overcurrent overheat operating mode, it comprises the metal shell of bottom opening, close the metal base plate of described outer casing bottom opening, be provided with moving contact and when reaching design temperature reverse, lower than the temperature-sensitive plate resetted during design temperature, the fixed contact arranged corresponding to described moving contact, and two binding posts; The upper end of described two binding posts is each passed through described base plate and stretches in the confined space that shell and base plate form, the shaft of described two binding posts is connected with described base plate insulated enclosure respectively, described fixed contact is fixedly mounted on the upper end of one of them binding post, in described confined space, envelope has mist, described moving contact, fixed contact are made up of the inside stacked metal level be combined with each other successively of table by least two layers, and superficial layer is siller tin oxide alloy-layer.
As a kind of preferred implementation of the present utility model, described moving contact, fixed contact are made up of the inside stacked metal level be combined with each other successively of table by two layers, and the second layer is copper alloy layer.
As another kind of preferred implementation of the present utility model, described moving contact, fixed contact are made up of the inside stacked metal level be combined with each other successively of table by three layers, and the second layer is metal copper layer, and third layer is metal iron layer.
In the utility model, the thickness of described superficial layer siller tin oxide alloy-layer is preferably 0.2 ~ 0.3mm.
In the utility model, described mist is mixed by helium and nitrogen.
After adopting such structure, the utility model has following beneficial effect:
Because moving contact of the present utility model, fixed contact are made up of the inside stacked metal level be combined with each other successively of table by least two layers; and superficial layer is siller tin oxide alloy-layer; contact surface layer is no longer containing cadmium element; the mist of such cooperation helium and nitrogen; electrical strength and the requirement in useful life of existing built-in overcurrent overheat protector can not only be met, and in use can not work the mischief to environment.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is a kind of structural representation of the built-in overcurrent overheat protector of the utility model.
Fig. 2 is the structural representation of moving contact in the utility model, the first embodiment of fixed contact.
Fig. 3 is the structural representation of moving contact in the utility model, fixed contact the second embodiment.
Fig. 4 is the elevational schematic view of moving contact, fixed contact in the utility model.
Embodiment
See the built-in overcurrent overheat protector of the one shown in Fig. 1 to Fig. 4, for by compressor or the motor failure of current when overcurrent overheat operating mode, it comprises the metal shell 1 of bottom opening, by the metal base plate 2 of shell described in welded closure 1 bottom opening, be provided with moving contact 3 and reverse when reaching design temperature, lower than the temperature-sensitive plate 4 resetted during design temperature, the fixed contact 5 arranged corresponding to described moving contact 3, and two binding posts 6,7, described two binding posts 6, the upper end of 7 is each passed through described base plate 2 and stretches in the confined space 8 that shell 1 and base plate 2 form, described two binding posts 6, the shaft of 7 is connected with described base plate 2 insulated enclosure respectively by insulating glass, described fixed contact 5 is fixedly mounted on one of them binding post 6 by support plate, the upper end of 7, the upper end of binding post 6 is fixed on shown in figure, in described confined space 8, envelope has mist, described moving contact 3, fixed contact 5 is made up of the inside stacked metal level be combined with each other by hot pressing successively of table by least two layers, and superficial layer 9 is siller tin oxide alloy-layer.In the utility model, described temperature-sensitive plate 4 is bimetal leaf or three sheet metals.
As a kind of preferred implementation of the present utility model, as shown in Figure 2, described moving contact 3, fixed contact 5 are made up of the inside stacked metal level be combined with each other by hot pressing successively of table by two layers, and the second layer 10 is copper alloy layer.
As another kind of preferred implementation of the present utility model, as shown in Figure 3, described moving contact 3, fixed contact 5 are made up of the inside stacked metal level be combined with each other by hot pressing successively of table by three layers, and the second layer 10 is metal copper layer, and third layer 11 is metal iron layer.
In the utility model, the thickness of described superficial layer 9 siller tin oxide alloy-layer is preferably 0.2 ~ 0.3mm.
In the utility model, described mist is preferably mixed by helium and nitrogen.
The utility model is when overcurrent overheat state, and in protector, temperature-sensitive plate 4 reverses immediately thus cuts off the electricity supply, and ensure that protector can reliably work, effectively prevent the damage of the electric equipment such as compressor or motor.
The utility model protector can be arranged on the inside of the electric equipment such as motor, and its space taken is little, plays a very good protection to electric equipment such as motors, and contact in use can not work the mischief to environment.
Claims (4)
1. a built-in overcurrent overheat protector, for by compressor or the motor failure of current when overcurrent overheat operating mode, it comprises the metal shell (1) of bottom opening, close the metal base plate (2) of described shell (1) bottom opening, be provided with moving contact (3) and reverse when reaching design temperature, lower than the temperature-sensitive plate (4) resetted during design temperature, the fixed contact (5) arranged corresponding to described moving contact (3), and two binding posts (6,7), described two binding posts (6, 7) upper end is each passed through described base plate (2) and stretches in the confined space (8) that shell (1) and base plate (2) form, described two binding posts (6, 7) shaft is connected with described base plate (2) insulated enclosure respectively, described fixed contact (5) is fixedly mounted on one of them binding post (6, 7) upper end, in described confined space (8), envelope has mist, it is characterized in that: described moving contact (3), fixed contact (5) is made up of the inside stacked metal level be combined with each other successively of table by least two layers, and superficial layer (9) is siller tin oxide alloy-layer.
2. built-in overcurrent overheat protector according to claim 1, is characterized in that: described moving contact (3), fixed contact (5) are made up of the inside stacked metal level be combined with each other successively of table by two layers, and the second layer (10) is copper alloy layer.
3. built-in overcurrent overheat protector according to claim 1; it is characterized in that: described moving contact (3), fixed contact (5) are made up of the inside stacked metal level be combined with each other successively of table by three layers; and the second layer (10) is metal copper layer, third layer (11) is metal iron layer.
4. built-in overcurrent overheat protector according to any one of claim 1 to 3, is characterized in that: the thickness of described superficial layer (9) siller tin oxide alloy-layer is 0.2 ~ 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520014300.5U CN204348617U (en) | 2015-01-09 | 2015-01-09 | A kind of built-in overcurrent overheat protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520014300.5U CN204348617U (en) | 2015-01-09 | 2015-01-09 | A kind of built-in overcurrent overheat protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204348617U true CN204348617U (en) | 2015-05-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520014300.5U Active CN204348617U (en) | 2015-01-09 | 2015-01-09 | A kind of built-in overcurrent overheat protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204348617U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110660612A (en) * | 2019-11-12 | 2020-01-07 | 常州常荣电器有限公司 | Built-in current overload protector |
-
2015
- 2015-01-09 CN CN201520014300.5U patent/CN204348617U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110660612A (en) * | 2019-11-12 | 2020-01-07 | 常州常荣电器有限公司 | Built-in current overload protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170223 Address after: 213031 Jiangsu Province, Changzhou City New District No. 99 new road Patentee after: Changzhou evergreen Electric Appliance Co., Ltd. Address before: 213127 Jiangsu province Changzhou City New District Chang Heng garden 35 room 402 Patentee before: Kuang Chengxiao |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20200916 Address after: No.2, information Avenue, Xinbei District, Changzhou City, Jiangsu Province Patentee after: JIANGSU CHANGRONG ELECTRICAL APPLIANCE Co.,Ltd. Address before: 213031 Jiangsu Province, Changzhou City New District No. 99 new road Patentee before: CHANGZHOU CHANGRONG ELECTRIC APPLIANCE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.2, information Avenue, Xinbei District, Changzhou City, Jiangsu Province Patentee after: Jiangsu Changrong Electric Appliance Co., Ltd Address before: No.2, information Avenue, Xinbei District, Changzhou City, Jiangsu Province Patentee before: JIANGSU CHANGRONG ELECTRICAL APPLIANCE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |