CN205753392U - The lightning protection circuit of appliance switch power supply - Google Patents
The lightning protection circuit of appliance switch power supply Download PDFInfo
- Publication number
- CN205753392U CN205753392U CN201620666482.9U CN201620666482U CN205753392U CN 205753392 U CN205753392 U CN 205753392U CN 201620666482 U CN201620666482 U CN 201620666482U CN 205753392 U CN205753392 U CN 205753392U
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- power supply
- switching power
- protected location
- lightning protection
- lightning
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- 230000005611 electricity Effects 0.000 claims description 3
- 230000002265 prevention Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
This utility model relates to appliance switch power supply.This utility model provides the lightning protection circuit of a kind of appliance switch power supply, including AC input cell, anti-lightning strike protected location, switching power supply and Switching Power Supply safety protected location, described anti-lightning strike protected location includes overcurrent protection module and varistor, one end of described AC input cell is connected with one end of overcurrent protection module, the other end of overcurrent protection module one end with Switching Power Supply safety protected location and varistor respectively is connected, Switching Power Supply safety protected location is connected with one end of switching power supply, the other end of switching power supply is connected with the other end of varistor and the other end of AC input cell respectively.By increasing universal elements, being greatly improved lightning protection grade, do not affect original power supply safety parameter simultaneously, can effectively improve lightning protection grade, the cost simultaneously increased is little.It is applicable to the lightning Protection Design of appliance switch power supply.
Description
Technical field
This utility model relates to appliance switch power supply, particularly to the lightning Protection Design of appliance switch power supply.
Background technology
Along with the fast development of society, household electrical appliance have become as the routine use equipment of broad masses of the people, its switch
The lightning protection requirement of power supply is also the key factor that appliance design must take into, owing to each local lightning protection requires to differ simultaneously
The cost requirement of home appliance is the lowest, if each household electrical appliance is designed by the highest lightning protection grade, the most again by passing
The lightning Protection Design thinking of system, then household electrical appliance cost can be greatly improved, there is design simultaneously for the use of the overwhelming majority
Redundancy.
Utility model content
Technical problem to be solved in the utility model, it is simply that provide the lightning protection circuit of a kind of appliance switch power supply to realize
Do not affect original power supply safety parameter while improving lightning protection grade, can effectively improve lightning protection grade, reduce anti-simultaneously
Thunder cost.
This utility model solves described technical problem, employed technical scheme comprise that, the lightning protection circuit of appliance switch power supply, bag
Include AC input cell, anti-lightning strike protected location, switching power supply and Switching Power Supply safety protected location, described anti-lightning strike guarantor
Protect unit and include overcurrent protection module and varistor, one end of described AC input cell and overcurrent protection module
One end connect, the other end of overcurrent protection module respectively with Switching Power Supply safety protected location and one end of varistor
Connect, Switching Power Supply safety protected location is connected with one end of switching power supply, the other end of switching power supply respectively with
The other end of varistor and the other end of AC input cell connect.
Concrete, described overcurrent protection module is electric fuse.
Concrete, described Switching Power Supply safety protected location is that safety protects electric fuse.
The beneficial effects of the utility model are: by increasing universal elements, change does not the most increase printed board
Area, is greatly improved lightning protection grade, does not affect original power supply safety parameter simultaneously, can effectively improve lightning protection grade, with
The cost of Shi Zengjia is little；Anti-lightning strike cell parameters can be changed according to lightning protection requesting party with compatible design, do not affects original
Safety parameter.
Accompanying drawing explanation
Fig. 1 is the existing a kind of lightning protection circuit in this utility model embodiment.
Fig. 2 is a kind of lightning protection circuit in this utility model embodiment.
Below in conjunction with the detailed description of the invention of embodiment, foregoing of the present utility model is remake the most specifically
Bright.But this should not being interpreted as, the scope of the above-mentioned theme of this utility model is only limitted to Examples below.New without departing from this practicality
In the case of the above-mentioned technological thought of type, the various replacements made according to ordinary skill knowledge and customary means or change, all
Should be included in the range of this utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment describe in detail the technical solution of the utility model:
This utility model is wanted due to each local lightning protection require to differ cost of home appliance simultaneously in prior art
Ask the lowest, if each household electrical appliance is designed by the highest lightning protection grade, the most again by traditional lightning Protection Design thinking,
So can be greatly improved household electrical appliance cost, the problem that simultaneously there is design redundancy for the use of the overwhelming majority, it is provided that
Plant the lightning protection circuit of appliance switch power supply, including AC input cell, anti-lightning strike protected location, switching power supply and switch electricity
Source safety protected location, described anti-lightning strike protected location includes overcurrent protection module and varistor, and described exchange inputs
One end of unit is connected with one end of overcurrent protection module, the other end of overcurrent protection module respectively with Switching Power Supply
One end of safety protected location and varistor connects, and Switching Power Supply safety protected location connects with one end of switching power supply
Connecing, the other end of switching power supply is connected with the other end of varistor and the other end of AC input cell respectively.Pass through
Increasing universal elements, change does not the most increase the area of printed board, is greatly improved lightning protection grade, does not affect original simultaneously
Power supply safety parameter, can effectively improve lightning protection grade, the cost simultaneously increased is little；Can be with compatible design, according to anti-
Thunder requesting party changes anti-lightning strike cell parameters, does not affect original safety parameter.
Embodiment
The lightning protection circuits used as shown in Figure 1 in prior art more, but this lightning protection circuit intelligence meets a kind of lightning protection
Level requirements.And owing to each local lightning protection require to differ cost requirement of home appliance simultaneously is the lowest, if each domestic
Electrical equipment is all designed by the highest lightning protection grade, the most again by traditional lightning Protection Design thinking, then can be greatly improved household electric
, for the use of the overwhelming majority, there is design redundancy in device cost simultaneously.This lightning prevention circuit is typically with electric fuse and pressure-sensitive
Resistance, this lightning prevention circuit has the following defect: will meet high-grade thunderbolt requirement, it is necessary to strengthen electric fuse and pressure-sensitive electricity
Resistance specification, strengthening fuse type will affect existing safety parameter；If anti-lightning strike by highest level design, significantly carry
High material cost；If anti-lightning strike by the design of multiple grades, that components and parts state and Safety Approval state will increase；
For the problems referred to above, this example provides a kind of Novel lightning-proof circuit, as shown in Figure 2.Including AC input cell, lightning protection
Hitting protected location, switching power supply and Switching Power Supply safety protected location, described anti-lightning strike protected location includes current overload
Protection module and varistor, one end of described AC input cell is connected with one end of overcurrent protection module, electric current mistake
The other end one end with Switching Power Supply safety protected location and varistor respectively carrying protection module is connected, Switching Power Supply safety
Protected location is connected with one end of switching power supply, the other end of switching power supply respectively with the other end of varistor and
The other end of AC input cell connects.Wherein, exchange people's input block is used for exchanging input；Lightning prevention circuit is used for absorbing thunder
Hit energy, reduce the harm to home appliance；Switching Power Supply safety protected location is for protecting the safety of whole home appliance.
Lightning prevention circuit after improvement increases a safety protection electric fuse, this safety protection electric fuse after anti-lightning strike
Safety for Switching Power Supply whole system designs, so on the basis of not changing original safety parameter, and can be according to specifically
Use anti-lightning strike requirement, change the component parameter of anti-lightning strike unit, be substantially reduced cost, improve product reliability and
Reduce power volume, also can reach to improve anti-lightning strike effect simultaneously.
This utility model is by increasing universal elements, and change does not the most increase the area of printed board, is greatly improved
Lightning protection grade, does not affect original power supply safety parameter simultaneously, can effectively improve lightning protection grade, and the cost simultaneously increased is very
Few；Anti-lightning strike cell parameters can be changed according to lightning protection requesting party with compatible design, do not affects original safety parameter.
Claims (3)
1. the lightning protection circuit of appliance switch power supply, it is characterised in that include AC input cell, anti-lightning strike protected location, switch
Power subsystem and Switching Power Supply safety protected location, described anti-lightning strike protected location includes overcurrent protection module and pressure-sensitive electricity
Resistance, one end of described AC input cell is connected with one end of overcurrent protection module, another of overcurrent protection module
End one end with Switching Power Supply safety protected location and varistor respectively is connected, and Switching Power Supply safety protected location is electric with switch
One end of source unit connects, the other end of switching power supply another with the other end of varistor and AC input cell respectively
One end connects.
The lightning protection circuit of appliance switch power supply the most according to claim 1, it is characterised in that described overcurrent protection mould
Block is electric fuse.
The lightning protection circuit of appliance switch power supply the most according to claim 1, it is characterised in that described Switching Power Supply safety is protected
Protecting unit is that safety protects electric fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620666482.9U CN205753392U (en) | 2016-06-28 | 2016-06-28 | The lightning protection circuit of appliance switch power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620666482.9U CN205753392U (en) | 2016-06-28 | 2016-06-28 | The lightning protection circuit of appliance switch power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205753392U true CN205753392U (en) | 2016-11-30 |
Family
ID=57383266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620666482.9U Active CN205753392U (en) | 2016-06-28 | 2016-06-28 | The lightning protection circuit of appliance switch power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205753392U (en) |
-
2016
- 2016-06-28 CN CN201620666482.9U patent/CN205753392U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: Room 529, Building 2, Innovation Center, Kechuang District, Mianyang City, Sichuan Province, 621000 Patentee after: SICHUAN CHANGHONG NETWORK TECHNOLOGY Co.,Ltd. Address before: 621000 Sichuan Changhong Network Technology Co., Ltd. Mianyang Kechuang Park, Mianyang City, Sichuan Province Patentee before: SICHUAN CHANGHONG NETWORK TECHNOLOGY Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231225 Address after: Room 528, Building 2, Innovation Center, New Area, Mianyang Science and Technology City, Mianyang City, Sichuan Province, 621000 Patentee after: Sichuan Changhong Xinwang Technology Co.,Ltd. Address before: 621000 room 529, building 2, innovation center, science and innovation District, Mianyang City, Sichuan Province Patentee before: SICHUAN CHANGHONG NETWORK TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |