CN203103254U - Surge-resistant type thermal fuse - Google Patents
Surge-resistant type thermal fuse Download PDFInfo
- Publication number
- CN203103254U CN203103254U CN 201320084813 CN201320084813U CN203103254U CN 203103254 U CN203103254 U CN 203103254U CN 201320084813 CN201320084813 CN 201320084813 CN 201320084813 U CN201320084813 U CN 201320084813U CN 203103254 U CN203103254 U CN 203103254U
- Authority
- CN
- China
- Prior art keywords
- pin
- temperature
- copper sheet
- surge
- shell
- 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
Links
Images
Landscapes
- Fuses (AREA)
Abstract
The utility model relates to a surge-resistant type thermal fuse. The surge-resistant type thermal fuse comprises a thick copper sheet, a thin copper sheet, a positioning block, a pin post A, a pin post B, a pin A, a pin B, a spring, a temperature sensing strip, a shell, a cover plate and the like, wherein the thick copper sheet is used for fixing the pin A and the temperature sensing strip, the thin copper sheet is used for fixing the pin B and the temperature sensing strip; the positioning block is used for installing and fixing the thick copper sheet; the spring is arranged between the pin posts A and B; and the shell is filled with resin. When a piezoresistor is impacted by surge current, the temperature of the piezoresistor is increased and higher than 50 DEG C, the resin is filled for melting; when the temperature is higher than set action temperature, the temperature sensing strip starts melting; and when the tensile force of the temperature sensing strip is weaker than the elasticity of the spring, the thin copper sheet and the pin post B deflects from the original position under the action of the elasticity to disconnect current. In addition, the shell is full of non-conductive liquid-state filled resin solution, thus being incapable of forming electric arc, and preventing the possibility of fire ignition.
Description
Technical field
The utility model relates to a kind of fuse, the especially a kind of type of anti-surge Thermal Cutoffs.
Background technology
Because the maximum surge current tolerance and the operating current breaking capacity of existing alloy-type temperature fuse are limited, be usually less than the maximum surge current tolerance of lightning protection device at present; In that to have big surge impact interim, Thermal Cutoffs will disconnect in advance, and therefore the prefabricated surge absorbability of lightning protection device can't realize the normal anti-surge protection to the place system.And alloy-type temperature fuse is under surge current impacts, and the distance that the alloy silk disconnects in the fusing process increase of starting from scratch can produce certain electric arc, and the size of electric current, voltage is directly proportional in the size of arc energy and the loop; Under the impact of surge current, electric arc will produce Thermal Cutoffs and destroy or cause and can't normally disconnect, even cause fire.
Secondly, because the starlike reed and the silver-plated pin pier nose of organic substance type Thermal Cutoffs, there are certain contact resistance in starlike reed and silver-plated copper shell, after surge current impacts the electric current welding phenomena may take place, and cause permanent short; Under big current surge impacted, explosion easily took place in the structure and material problem because of organic substance type Thermal Cutoffs.The maximum rated current of organic substance type Thermal Cutoffs is 16A, and rated voltage is 250V, can't bear bigger surge current.
Therefore, develop and aly can bear certain surge current, the fuse that enough operating current breaking capacity are arranged again is the purpose of our this utility model research.
The utility model content
The utility model is to provide a kind of can bear certain surge current, and the type of anti-surge Thermal Cutoffs of enough operating current breaking capacity can be arranged again.
The technical scheme that the utility model provides is as follows:
The type of anti-surge Thermal Cutoffs, form by thick copper sheet, scale copper, locating piece, hitching post A, hitching post B, pin A, pin B, spring, temperature-sensitive bar, shell, cover plate etc., it is characterized in that: described thick copper sheet is used for fixing pin A and temperature-sensitive bar, and described scale copper is used for fixing pin B and temperature-sensitive bar; Described locating piece is used for installing and fixing thick copper sheet; Described hitching post A
[0005]And be provided with spring between the hitching post B; Described enclosure is filled with potting resin.
Described cover plate has all watered with place, cover plate and shell seam crossing that pin A contacts with pin B and has sealed resin.
The fusing point of described potting resin is more than or equal to 50 ℃.
Described temperature-sensitive bar fusing-off temperature scope is: 60-230 ℃.
Advantage of the present utility model is that the described type of anti-surge Thermal Cutoffs can bear certain surge current, and enough operating current breaking capacity are arranged again.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model
Fig. 2 is the utility model stereogram
Embodiment
A kind of preferred embodiment of the present utility model:
As described in Fig. 1,2, the type of anti-surge Thermal Cutoffs, by thick copper sheet (1), scale copper (2), locating piece (3), hitching post A(4), hitching post B(5), pin A(6), pin B(7), spring (8), temperature-sensitive bar (9), shell (10), cover plate (11) etc. form, described thick copper sheet (1) is used for fixing pin A(6) and temperature-sensitive bar (9), described scale copper (2) is used for fixing pin B(7) and temperature-sensitive bar (9); Described locating piece (3) is used for installing and fixing thick copper sheet (1); Described hitching post A(4) and hitching post B(5) between be provided with spring (8); Potting resin is filled with in described shell (10) inside; Described cover plate (11) and pin A(6) with pin B(7) place, cover plate (11) and shell (10) seam crossing that contact all watered and sealed resin; The fusing point of described potting resin is more than or equal to 50 ℃; Described temperature-sensitive bar (9) fusing-off temperature scope is: 60-230 ℃.
When surge current impacted piezo-resistance, piezo-resistance heated up, and temperature is during greater than 50 ℃, and potting resin melts; When temperature when setting operating temperature, temperature-sensitive bar (9) begins to melt, the pulling force of temperature-sensitive bar (9) is less than the elastic force of spring (8), scale copper (2) and hitching post B(5) under the effect of elastic force, depart from original position, turn-off current.Because shell (10) inside is full of non-conductive liquid potting resin solution,, prevent possibility on fire again so can't form electric arc.
Above-mentioned only is a specific embodiment of the present utility model, and all equalizations of being done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (4)
1. the type of anti-surge Thermal Cutoffs, form by thick copper sheet, scale copper, locating piece, hitching post A, hitching post B, pin A, pin B, spring, temperature-sensitive bar, shell, cover plate etc., it is characterized in that: described thick copper sheet is used for fixing pin A and temperature-sensitive bar, and described scale copper is used for fixing pin B and temperature-sensitive bar; Described locating piece is used for installing and fixing thick copper sheet; Be provided with spring between described hitching post A and the hitching post B; Described enclosure is filled with potting resin.
2. the type of anti-surge Thermal Cutoffs as claimed in claim 1 is characterized in that: described cover plate has all watered with place, cover plate and shell seam crossing that pin A contacts with pin B and has sealed resin.
3. the type of anti-surge Thermal Cutoffs as claimed in claim 1 is characterized in that: the fusing point of described potting resin is more than or equal to 50 ℃.
4. the type of anti-surge Thermal Cutoffs as claimed in claim 1 is characterized in that: described temperature-sensitive bar fusing-off temperature scope is: 60-230 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320084813 CN203103254U (en) | 2013-02-25 | 2013-02-25 | Surge-resistant type thermal fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320084813 CN203103254U (en) | 2013-02-25 | 2013-02-25 | Surge-resistant type thermal fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203103254U true CN203103254U (en) | 2013-07-31 |
Family
ID=48854639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320084813 Expired - Fee Related CN203103254U (en) | 2013-02-25 | 2013-02-25 | Surge-resistant type thermal fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203103254U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332370A (en) * | 2014-07-25 | 2015-02-04 | 漳州雅宝电子有限公司 | Novel radial easy-to-assemble-type organic matter temperature fuse |
| KR20160000241A (en) | 2014-06-24 | 2016-01-04 | 콘쿼 일렉트로닉스 캄파니, 리미티드 | Fuse Capable of Withstanding High Surge |
| KR20160000056U (en) | 2014-06-27 | 2016-01-06 | 콘쿼 일렉트로닉스 캄파니, 리미티드 | Fuse Device Capable of Withstanding High Surge |
-
2013
- 2013-02-25 CN CN 201320084813 patent/CN203103254U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160000241A (en) | 2014-06-24 | 2016-01-04 | 콘쿼 일렉트로닉스 캄파니, 리미티드 | Fuse Capable of Withstanding High Surge |
| KR20160000056U (en) | 2014-06-27 | 2016-01-06 | 콘쿼 일렉트로닉스 캄파니, 리미티드 | Fuse Device Capable of Withstanding High Surge |
| CN104332370A (en) * | 2014-07-25 | 2015-02-04 | 漳州雅宝电子有限公司 | Novel radial easy-to-assemble-type organic matter temperature fuse |
| CN104332370B (en) * | 2014-07-25 | 2019-06-11 | 漳州雅宝电子有限公司 | A kind of radial direction is easily assembled organic matter Thermal Cutoffs |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203218873U (en) | Novel surge protector | |
| CN203103254U (en) | Surge-resistant type thermal fuse | |
| CN103580019A (en) | Surge protection device for circuit board | |
| CN203165599U (en) | Lightning arrester trip remote signaling device | |
| CN103855673A (en) | Novel surge protection device | |
| CN206685462U (en) | A kind of cell electrode assemblies, cover plate assembly and battery | |
| CN203026939U (en) | Novel surge protector | |
| CN207425786U (en) | A kind of safety device with fusing warning function | |
| CN103855696A (en) | Novel surge protection device | |
| CN210467972U (en) | Short-circuit device for battery over-temperature protection and battery with over-temperature protection function | |
| CN106655139B (en) | Surge Protector | |
| CN203289067U (en) | Novel surge protector | |
| CN206370318U (en) | Piezoresistive element with overtemperature protection | |
| CN205646804U (en) | Self -adaptation formula overload automatic control surge protector | |
| CN102646547B (en) | Protector for lithium ion battery | |
| CN204189712U (en) | A kind of circuit protection device | |
| CN103236381B (en) | A kind of type of resistance to surge Thermal Cutoffs | |
| CN204538679U (en) | A kind of Novel electric surge protector | |
| CN209374394U (en) | A kind of fuse with magnetic quenching function | |
| CN204289322U (en) | A kind of Novel lightning-proof fuse | |
| CN204886165U (en) | Novel surge protector | |
| CN102136403A (en) | Fusion tube for detecting high-voltage line fault | |
| CN2702506Y (en) | Novel structural surge protector | |
| CN206389110U (en) | A kind of novel surge protective device | |
| CN204144190U (en) | A kind of circuit protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20170225 |