CN101339864A - Button type heat protector - Google Patents
Button type heat protector Download PDFInfo
- Publication number
- CN101339864A CN101339864A CNA2008100215883A CN200810021588A CN101339864A CN 101339864 A CN101339864 A CN 101339864A CN A2008100215883 A CNA2008100215883 A CN A2008100215883A CN 200810021588 A CN200810021588 A CN 200810021588A CN 101339864 A CN101339864 A CN 101339864A
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- CN
- China
- Prior art keywords
- cover board
- cover plate
- moving contact
- shrapnel
- spring leaf
- 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.)
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Abstract
A button thermal protector relates to the technical field of the structure taking a phialiform bimetallic strip as a temperature sensing element. An arch cover board is arranged above an outer housing by an insulator, and the upper end surface of the cover board is connected with leads; the back of the upper end surface of the cover board is connected with a fixed contact, and a moving contact is supported by a shrapnel under the fixed contact; the lower end of the shrapnel is supported on the inner bottom of the outer housing, the upper end of the shrapnel is connected with the moving contact, a bimetallic element is fixedly connected with the moving contact above the shrapnel, and the outer housing, the cover board and one end of the lead connected with the cover board are molded in a thermal shrinkable sleeve in a thermal way. The button thermal protector has the advantages of small volume, simple and convenient installation, stable and reliable performance, good sealability and long service life, and can adapt to the equipment with small space and difficult assembly; the button thermal protector also has high capacity of shock resistance and vibration resistance, and is widely applied for temperature protection of automobiles and electrical appliances with the similar usage.
Description
Technical field
The present invention relates to a kind of electrocomponent technology field, particularly is the technical field of structures of temperature-sensing element with the butterfly shaped dual metal sheet.
Background technology
Existing thermal protector is applicable to and is contained in family expenses and similar applications single phase alternating current (A.C.) rated voltage is not more than 250V that rated current is not more than 5A; Dc rated voltage is not more than 125V, and rated current is not more than the temperature protection of 10A, thereby this thermal protector is to be that temperature-sensing element plays temperature protection with the butterfly shaped dual metal sheet.Be widely used in the protection of household electrical appliance such as domestic air conditioning motor, dish-washing machine motor, fan motor and motor for washer, motor.Because the original product volume is bigger, highly about 12mm should not install at narrow space, and life of product is shorter relatively, is unfavorable for the use of electric equipment products.
Summary of the invention
The object of the invention is to design the button type heat protector that a kind of volume is little, properties of product are stable.
The present invention includes outer cover, above outer cover, arrange arc cover plate by insulating part, the cover plate upper surface connects lead, the back of cover plate upper surface connects fixed contact, support a moving contact by spring leaf below fixed contact, the lower end of described spring leaf is supported on the interior end of outer cover, and the upper end of spring leaf is connected on the moving contact, fixedly connected bimetallic element on the moving contact above the spring leaf, described outer cover, cover plate and the lead one end thermoplastic that is connected with cover plate are in a heat-shrinkable T bush.
The present invention with cover plate and with element thermoplastics such as cover plate in same heat-shrinkable T bush; only stay the end of lead; the small product size that forms is less; highly have only about 5mm, diameter has only 9mm, simple installation, stable and reliable for performance; good seal performance, life of product are long; can adapt to the equipment of the little difficult assembling in various spaces, have high shock resistance, the ability of anti-vibration, be widely used in automobile with and the temperature protection of similar applications electrical equipment.Except that can just being usually used in the large household appliances such as domestic air conditioning motor, dish-washing machine motor, fan motor and motor for washer; can also install at narrow space; be advantageously used in the overtemperature protection of notebook computer, mobile phone, portable equipment; this thermal protector also can be used for electric heating appliance, fluorescent lamp ballast, transformer, automobile motor, automobile heating seat cushion, the overtemperature protection of integrated circuit and general electric equipment.
Insulating part of the present invention comprises exhausted paper washer, and described insulation paper washer is wrapped in the lower end of cover plate.Can further dwindle the product height by the insulation paper washer.
In order to improve insulation effect, insulating part of the present invention also comprises fixedly connected insulation paper washer on the cover board.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Embodiment
As shown in Figure 1, in heat-shrinkable T bush 10, be furnished with outer cover 9 and section and be arc cover plate 2.
The fixedly connected dielectric film 5 of the periphery of cover plate 2, its outer insulation paper washer 4 that also is enclosed with.
The back of cover plate 2 upper surfaces connects fixed contact 3, supports a moving contact 6 by spring leaf 8 below fixed contact 3, and the lower end of spring leaf 8 is supported on the interior end of outer cover 9, and the upper end of spring leaf 8 is connected on the moving contact 6.Fixedly connected bimetallic element 7 on the moving contact above the spring leaf 86.
Claims (3)
1, button type heat protector; comprise outer cover; above outer cover, arrange arc cover plate by insulating part; the cover plate upper surface connects lead; the back of cover plate upper surface connects fixed contact; below fixed contact, support a moving contact by spring leaf; the lower end of described spring leaf is supported on the interior end of outer cover; the upper end of spring leaf is connected on the moving contact; fixedly connected bimetallic element on the moving contact above the spring leaf, it is characterized in that described outer cover, cover plate and the lead one end thermoplastic that is connected with cover plate in a heat-shrinkable T bush.
2, according to the described button type heat protector of claim 1, it is characterized in that described insulating part comprises the insulation paper washer, described insulation paper washer is wrapped in the lower end of cover plate.
3,, it is characterized in that described insulating part also comprises fixedly connected dielectric film on the cover board according to the described button type heat protector of claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100215883A CN101339864A (en) | 2008-08-07 | 2008-08-07 | Button type heat protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100215883A CN101339864A (en) | 2008-08-07 | 2008-08-07 | Button type heat protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101339864A true CN101339864A (en) | 2009-01-07 |
Family
ID=40213898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100215883A Pending CN101339864A (en) | 2008-08-07 | 2008-08-07 | Button type heat protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101339864A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110678032A (en) * | 2019-11-01 | 2020-01-10 | 珠海格力电器股份有限公司 | Electrical apparatus box and air conditioner |
-
2008
- 2008-08-07 CN CNA2008100215883A patent/CN101339864A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110678032A (en) * | 2019-11-01 | 2020-01-10 | 珠海格力电器股份有限公司 | Electrical apparatus box and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090107 |