CN202585956U - Socket protection module - Google Patents

Socket protection module Download PDF

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Publication number
CN202585956U
CN202585956U CN 201220175416 CN201220175416U CN202585956U CN 202585956 U CN202585956 U CN 202585956U CN 201220175416 CN201220175416 CN 201220175416 CN 201220175416 U CN201220175416 U CN 201220175416U CN 202585956 U CN202585956 U CN 202585956U
Authority
CN
China
Prior art keywords
diode
circuit
utility
model
parallel
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
Application number
CN 201220175416
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Chinese (zh)
Inventor
肖南海
肖林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI YINT ELECTRONICS CO Ltd
Original Assignee
SHANGHAI YINT ELECTRONICS CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANGHAI YINT ELECTRONICS CO Ltd filed Critical SHANGHAI YINT ELECTRONICS CO Ltd
Priority to CN 201220175416 priority Critical patent/CN202585956U/en
Application granted granted Critical
Publication of CN202585956U publication Critical patent/CN202585956U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a socket protection module which comprises a thermistor, a piezoresistor, a first diode, a second diode and a third diode. The piezoresistor, the first diode and the second diode are connected in parallel, one end of a parallel connection circuit is connected with the input end, the other end of the parallel connection circuit is connected with the output end, the thermistor is arranged on a circuit formed by connecting the parallel connection circuit and the input end, the third diode is arranged on a circuit formed by connecting the first diode and the second diode, and a grounding end is arranged on a circuit formed by connecting the third diode and the first diode. The socket protection module can reduce damage of electrical equipment and lower fire risk caused by using of electrical appliances.

Description

A kind of socket protective module
Technical field
The utility model relates to a kind of protection module, particularly a kind of household socket protection module.
Background technology
The Along with people's growth in the living standard, being widely used of household electrical appliance, and because of electric equipment uses the damage accident that causes, also take place frequently; Main conditions are, when the household electrical appliance plug-in causes spark during to socket easily, and spark causes fire; Along with the destruction of the Nature, thunder and lightning also often takes place, and causes product to be damaged by the indirect lightning strike surge.Product electrical equipment has the part high-end product when product design in the market, has considered the design of surge current or the design of surge voltage; It is not comprehensive that but they consider, just to single electrical appliance, and is welded on the electric equipment end; After receiving once to protect, damage will influence can not using of whole power consumption equipment, bring huge maintenance after cost to production firm like this; If the user does not keep in repair, cause the social resources huge waste like this.Its just considers protection at all to the electric equipment of low and middle-end, and user's damage equipment is directly scrapped or given garbage reclamation.If there is not surge to handle, power consumption equipment plug-in process forms and draws electric arc, causes fire easily.
The utility model content
The technical problem that the utility model will solve provides a kind of damage that can reduce electric equipment, reduces the socket protective module of using the appliance fire risk.
To achieve these goals, the technical scheme of the utility model is following:
A kind of socket protective module; Comprise thermistor, piezo-resistance, number one diode, No. second diode and No. three diode; Said piezo-resistance, number one diode and No. second diode are for being connected in parallel; Circuit one end that is connected in parallel connects input, and the other end connects output, and the circuit that the circuit that is connected in parallel is connected with input is provided with thermistor; The circuit that said number one diode is connected with No. second diode is provided with diode No. three, and No. three diode is provided with earth terminal with the circuit that the number one diode is connected.
Further, said input is a binding post.
Further, said output is a binding post.
Further, said number one diode is a Transient Suppression Diode.
Further, said No. second diode is Transient Suppression Diode.
Further, said No. three diode is Transient Suppression Diode.
Adopt the socket protective module of technique scheme; Because said piezo-resistance, number one diode and No. second diode are for being connected in parallel; Circuit one end that is connected in parallel connects input; The other end connects output, and the circuit that the circuit that is connected in parallel is connected with input is provided with thermistor, and the circuit that said number one diode is connected with No. second diode is provided with diode No. three; No. three diode is provided with earth terminal with the circuit that the number one diode is connected; So the electric fire that causes when plug-in or start can sponge, the lightning surge of the Nature induction absorbs through the utility model or leakage path is provided, thereby the protection electric equipment is not damaged.
Description of drawings
Fig. 1 is the circuit diagram of the utility model socket protective module.
Embodiment:
For the technological means, the creation characteristic that make the utility model and reach purpose and be easy to understand and understand, further set forth the utility model below in conjunction with specific embodiment.
As shown in Figure 1; A kind of socket protective module comprises thermistor NTC, piezo-resistance VZ, number one diode TVS1, No. second diode TVS2 and No. three diode TVS3, and piezo-resistance VZ, number one diode TVS1 and No. second diode TVS2 are for being connected in parallel; Circuit one end that is connected in parallel connects input 1; The other end connects output 2, and the circuit that the circuit that is connected in parallel is connected with input 1 is provided with thermistor NTC, and the circuit that number one diode TVS 1 is connected with No. second diode TVS2 is provided with diode TVS3 No. three; No. three diode TVS3 is provided with earth terminal with the circuit that number one diode TVS1 is connected; Input 1 is a binding post, and output 2 is a binding post, and number one diode TVS 1 is a Transient Suppression Diode; No. second diode TVS2 is Transient Suppression Diode, and No. three diode TVS3 is a Transient Suppression Diode.
The utility model is used thermistor NTC; Be used for doing the current absorption of switching on and shutting down electrical surge specially, when device detects big electric current, it will form high-impedance state in lock in time; Suppress big switching on and shutting down surge; Suppress big electric current, just have no idea to form the arcing spark, get up to protect the rear end product and prevent the function of spark; In addition, there is inductance value thermistor NTC inside, its voltage effect of will getting up to delay time.
When input had thunderbolt or the input of other abnormal voltage, piezo-resistance VZ had voltage-current characteristic, and when voltage did not reach the VZ threshold values, it was a high-impedance state; When voltage surpasses piezo-resistance VZ operating voltage, it will form low-resistance, current surge; When electric current increased, power supply circuits will cut off through circuit fuse or leakage switch; When residual voltage exists, the current circuit that its logical Transient Suppression Diode just forms, at this moment NTC also can produce high resistant, the restriction electric current.Thereby play the effect of protective circuit back electric equipment.
The utility model can be directly installed on family socket or the family expenses flush receptacle.Only need connect electric power incoming line receives input, and in addition, output also is the binding post post, after lightning surge or long-time service failure, is convenient for changing.
More than show and described the advantage of basic principle, principal character and the utility model of the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; The utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection range to be defined by appending claims and equivalent thereof.

Claims (6)

1. socket protective module; It is characterized in that: it comprises thermistor, piezo-resistance, number one diode, No. second diode and No. three diode; Said piezo-resistance, number one diode and No. second diode are for being connected in parallel; Circuit one end that is connected in parallel connects input, and the other end connects output, and the circuit that the circuit that is connected in parallel is connected with input is provided with thermistor; The circuit that said number one diode is connected with No. second diode is provided with diode No. three, and No. three diode is provided with earth terminal with the circuit that the number one diode is connected.
2. socket protective module according to claim 1 is characterized in that: said input is a binding post.
3. socket protective module according to claim 2 is characterized in that: said output is a binding post.
4. socket protective module according to claim 3 is characterized in that: said number one diode is a Transient Suppression Diode.
5. socket protective module according to claim 4 is characterized in that: said No. second diode is Transient Suppression Diode.
6. socket protective module according to claim 5 is characterized in that: said No. three diode is Transient Suppression Diode.
CN 201220175416 2012-04-24 2012-04-24 Socket protection module Expired - Fee Related CN202585956U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220175416 CN202585956U (en) 2012-04-24 2012-04-24 Socket protection module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220175416 CN202585956U (en) 2012-04-24 2012-04-24 Socket protection module

Publications (1)

Publication Number Publication Date
CN202585956U true CN202585956U (en) 2012-12-05

Family

ID=47255328

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220175416 Expired - Fee Related CN202585956U (en) 2012-04-24 2012-04-24 Socket protection module

Country Status (1)

Country Link
CN (1) CN202585956U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019042254A1 (en) * 2017-08-28 2019-03-07 中兴通讯股份有限公司 Electric leakage resistance circuit, two-pin charger, electric leakage resistance charging method, and computer readable storage medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019042254A1 (en) * 2017-08-28 2019-03-07 中兴通讯股份有限公司 Electric leakage resistance circuit, two-pin charger, electric leakage resistance charging method, and computer readable storage medium

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121205

Termination date: 20130424