CN205944642U - Safety socket - Google Patents
Safety socket Download PDFInfo
- Publication number
- CN205944642U CN205944642U CN201620897526.9U CN201620897526U CN205944642U CN 205944642 U CN205944642 U CN 205944642U CN 201620897526 U CN201620897526 U CN 201620897526U CN 205944642 U CN205944642 U CN 205944642U
- Authority
- CN
- China
- Prior art keywords
- zero line
- incoming cables
- ground connection
- relay
- socket
- 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
Abstract
The utility model discloses a safety socket, it includes zero line contact, live wire contact, earthing contact, zero line inlet wire end, live wire inlet wire end, ground connection inlet wire end, between its zero line contact and the zero line inlet wire end, zero line inlet wire end and ground connection inlet wire still be equipped with the safety circuit subassembly between holding. The socket is only transformed inner structure, and the input/output is unchangeable, does not influence the socket fixing operation, and the socket after the improvement not only can connect anti - the warning to the zero line live wire, the people of while to not noticing the warning, and operating personnel error correction will be supervised through the forced interruption to the socket, standardize the circuit installation.
Description
Technical field
This utility model is related to a kind of socket, more particularly, to a kind of safety socket.
Background technology
Socket, has referred to the insertable seat of one or more circuit connections, can be connect multiple power devices by it
Enter power supply circuits；Socket is using more electric attachments in design of residence, it with people life have very close
Relation, therefore people can be related to the I＆M to socket in life unavoidably.
China's power supply circuits are made up of zero line live wire two lines road, and electric current flows back to zero line from live wire through electrical appliance, traditional
Socket is provided solely for hard contact and contact is connected into power supply circuits, completes when electrical appliance plug is contacted with corresponding hard contact
Equipment is powered, as shown in figure 1, but socket structure briefly above has certain potential safety hazard.
Taking a Three-hole socket as a example, specifically, should be according to the mode of connection of " a Shangdi left side zero right fire ", by phase during installation
Answer hard contact to access power supply circuits, but unavoidable exist phenomenon mutually reversed to zero line and live wire is existed, using upper, mistake
Connection perhaps has no effect on the normal work of electrical appliance, because China's civil power is alternating current 220V, does not exist between live wire and zero line
Polarity point, but there is hidden danger using secure context, than if any electrical equipment switch be control live wire, as long as switch close
Electrical equipment does not just have electricity completely, and only a kind of connected mode of 3-phase plug is inserted on wall socket, one is mutually inserted in ground string holes above
Interior, left and right is biphase to be had and only a kind of connected mode is connected in wall socket, and live wire one side zero line is it is assumed that reversed, just
Become on-off control zero line, after roof-cut resistence, the whole circuit of electrical equipment is still powered, in life, widely used three-phase insert row is
It is assumed that zero live wire is reversed, above insert row, the cut-out of switch acquiescence is live wire, misconnection for a kind of typical on-off control live wire mechanism
When, switch will cut off zero line, and live wire is still energized, if imprudence touches the internal copper sheet of insert row, Danger Electric shock risk will occur.
Based on the problems referred to above, patent application CN201520299607.4 proposes design test plug, after installing circuit,
Wrong can be checked whether by inserting plug, but this plug is primarily adapted for vast water power work user, for general family, one
As will not be equipped with this kind of test plug, and the lifting with labor cost, increasing family all selects to be produced with DIY
Product, thus all there may be above-mentioned potential problem, on the other hand, if socket only increases during many family's mounting receptacles
Detection structure, user might not can be appreciated that the impact that different testing results are brought, as long as can guarantee that use for socket
Electrical equipment normally runs it and also will not take notice of wrong problem.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of socket of setting security mechanism, on the one hand,
Whether socket itself can point out power supply circuits to access correct, on the other hand, when circuit accesses mistake, makes equipment normal
Work, and then promote user's lookup reason to fix a breakdown.
For solving above-mentioned technical problem, technical solution of the present utility model is：A kind of safety socket, touches including zero line
Point, firewire contact, earthing contact, zero line end of incoming cables, live wire end of incoming cables, ground connection end of incoming cables, its zero line contact and zero line end of incoming cables
Between, zero line end of incoming cables and ground connection end of incoming cables between be additionally provided with safety circuit assembly.
Preferably, safety circuit assembly comprises a relay, the output loop of relay is connected on zero line contact and zero line
Between end of incoming cables, the input circuit of relay is connected between zero line end of incoming cables and ground connection end of incoming cables.
Preferably, relay is closed type voltage relay.
Preferably, being additionally provided with a protective resistance between zero line end of incoming cables and ground connection end of incoming cables, the input circuit of relay with
Ground connection end of incoming cables between be additionally provided with a light emitting diode, light emitting diode positive pole is electrically connected with input circuit, negative pole be grounded into
Line end electrically connects.
Preferably, being additionally provided with a diode, diode cathode and zero line inlet wire between zero line end of incoming cables and ground connection end of incoming cables
End electrical connection, diode cathode is electrically connected with ground connection end of incoming cables through input circuit, diode cathode and light emitting diode negative pole it
Between be also parallel with an electric capacity.
Preferably, diode reverse pressure less than or equal to 400V, relay operating current is more than or equal to 10mA.
After such scheme, due to structure design of the present utility model, socket will be provided with following security mechanism：
1. socket will feed back whether zero line live wire accesses mistake, remind installation personnel that it is corrected in time；
2. for the installation personnel not noticing error prompting, socket will be unable to normal power supply, and then urges installation people
Member searches circuit reason and fixes a breakdown；
3. socket internal circuit is only suitably changed by this utility model, its external output of the new socket after encapsulation
Consistent with input and conventional socket, do not affect existing socket mounting means.
Brief description
Fig. 1 is existing five hole wall socket internal circuit configuration figures；
Fig. 2 is to apply five hole wall socket internal circuit configuration figures of the present utility model；
Fig. 3 is to apply five hole wall socket outline drawings of the present utility model.
Specific embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, disclosed in this utility model is
A kind of safety socket, as shown in Fig. 2 being preferred embodiment of the present utility model, which show based on this utility model design
Five hole wall safety sockets.This five holes wall safety socket is except including cabinet, firewire contact 11, zero line contact 21, connecing
Outside ground contact 31, live wire end of incoming cables 12, zero line end of incoming cables 22, ground connection end of incoming cables 32 and necessary screw, in zero line contact
Between 21 and zero line end of incoming cables 22, zero line end of incoming cables 22 and ground connection end of incoming cables 32 between be additionally provided with safety circuit assembly, by peace
Whole assembly, whether feedback zero line live wire is reversed in time, carries out open circuit process simultaneously for reversed circuit, it is to avoid because of installation question
And produce hidden danger.
In embodiment, it is more than or equal to the closed type voltage relay of 10mA come to circuit whether by arranging operating current
Power supply is controlled, and the output loop 42 of relay is connected between zero line contact 21 and zero line end of incoming cables 22, by relay
Input circuit 41 be connected on zero line end of incoming cables 22 and ground connection end of incoming cables 32 between, due to zero line voltage-to-ground be 0V, live wire pair
Ground voltage is 220V, and when connection is correct, the input circuit 41 of closed type voltage relay must not be electric, in output loop 42
Contact is failure to actuate, and zero line still keeps path, and electric current can flow back to power supply circuits from zero line after electrical appliance, the normal work of socket
Make；When connection is incorrect, zero line end of incoming cables 22 is connected with live wire in power supply circuits, the zero line voltage-to-ground in socket
For 220V, relay input circuit 41 must be electric, and output loop 42 action disconnects, and circuit cannot form loop, and electric current is through electrical appliance
After cannot return to power supply circuits from zero line, the therefore electrical equipment of access also will be unable to normally use.
For avoiding electric current in circuit excessive, simultaneously to whether wrong circuit is reminded, zero line end of incoming cables 22 be grounded into
Be additionally provided with the protective resistance 51 of a 12k Ω and a light emitting diode 52 between line end 32, light emitting diode 52 positive pole with defeated
Entry loop 41 electrically connects, and negative pole is electrically connected with ground connection end of incoming cables 32, and when connection is correct, zero line voltage-to-ground is 0V, sends out
Optical diode 52 goes out, and when connection is incorrect, electric current lights light emitting diode 52 after relay input circuit 41, carries
Awake wall socket internal circuit zero line live wire wiring error, as shown in Figure 3.
It is additionally provided with a diode 53, diode 53 positive pole and zero line inlet wire between zero line end of incoming cables 22 and ground connection end of incoming cables 32
End 22 electrical connection, diode 53 negative pole is electrically connected with ground connection end of incoming cables 32 through input circuit 41, diode 53 negative pole and luminous two
It is additionally provided with an electric capacity 54, the effect of electric capacity 54 is energy storage, the effect of diode 53 is to prevent electric capacity from discharging between pole pipe 52 negative pole
During electric current adverse current enter civil power 220v in.When circuit zero live wire wiring error, when alternating current 220V is operated in negative half-cycle, this
When, although circuit mistake, zero line end of incoming cables 22 with ground connection end of incoming cables 32 cannot turn on, the input circuit 41 of relay cannot
Obtain electric；When there is electric capacity 54, the electric energy that electric capacity 54 stores in positive half period now discharges, and can maintain relay input circuit
41 both end voltage, make coil obtain electric, and contact disconnects, and stop the formation in loop.The effect of diode 53 is to prevent electric capacity 54 from discharging
During electric current adverse current enter in civil power 220v, lead to fault to occur it is desirable to diode 53 is reversely pressure is less than or equal to
400V.
The above, be only preferred embodiment of the present utility model, not technical scope of the present utility model is made
Any restriction, therefore the change in every case done according to claim of the present utility model and description or modification, all should belong to this practicality
Within the scope of new patent is covered.
Claims (6)
1. a kind of safety socket, including zero line contact, firewire contact, earthing contact, zero line end of incoming cables, live wire end of incoming cables, ground connection
End of incoming cables it is characterised in that：Between described zero line contact and described zero line end of incoming cables, described zero line end of incoming cables with described be grounded into
It is provided with safety circuit assembly between line end.
2. safety socket according to claim 1 it is characterised in that：Described safety circuit assembly comprises a relay, institute
The output loop stating relay is connected between described zero line contact and zero line end of incoming cables, the input circuit series connection of described relay
Between described zero line end of incoming cables and ground connection end of incoming cables.
3. safety socket according to claim 2 it is characterised in that：Described relay is closed type voltage relay.
4. safety socket according to claim 3 it is characterised in that：Described zero line end of incoming cables and described ground connection end of incoming cables it
Between be additionally provided with a protective resistance, be additionally provided with light-emitting diodes between the input circuit of described relay and described ground connection end of incoming cables
Pipe, described light emitting diode positive pole is electrically connected with described input circuit, and negative pole is electrically connected with described ground connection end of incoming cables.
5. safety socket according to claim 4 is it is characterised in that go back between described zero line end of incoming cables and ground connection end of incoming cables
It is provided with a diode, described diode cathode is electrically connected with described zero line end of incoming cables, and described diode cathode inputs back through described
Road is electrically connected with described ground connection end of incoming cables, is also parallel with an electricity between described diode cathode and described light emitting diode negative pole
Hold.
6. safety socket according to claim 5 is it is characterised in that described diode reverse is pressure is less than or equal to
400V, described relay operating current is more than or equal to 10mA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620897526.9U CN205944642U (en) | 2016-08-18 | 2016-08-18 | Safety socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620897526.9U CN205944642U (en) | 2016-08-18 | 2016-08-18 | Safety socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205944642U true CN205944642U (en) | 2017-02-08 |
Family
ID=57919298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620897526.9U Expired - Fee Related CN205944642U (en) | 2016-08-18 | 2016-08-18 | Safety socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205944642U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110364836A (en) * | 2019-06-25 | 2019-10-22 | 泉州洛江吉如机械设计有限公司 | A kind of electrical fire security device |
| CN112878002A (en) * | 2020-12-30 | 2021-06-01 | 镇江市江冠电器有限公司 | Wire harness assembly for washing machine |
-
2016
- 2016-08-18 CN CN201620897526.9U patent/CN205944642U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110364836A (en) * | 2019-06-25 | 2019-10-22 | 泉州洛江吉如机械设计有限公司 | A kind of electrical fire security device |
| CN112878002A (en) * | 2020-12-30 | 2021-06-01 | 镇江市江冠电器有限公司 | Wire harness assembly for washing machine |
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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 |
Granted publication date: 20170208 Termination date: 20190818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |