CN202206133U

CN202206133U - Lightning protection isolator for direct-to-home signal line and power socket with same

Info

Publication number: CN202206133U
Application number: CN2011202015925U
Authority: CN
Inventors: 王建兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-15
Filing date: 2011-06-15
Publication date: 2012-04-25
Anticipated expiration: 2021-06-15

Abstract

The utility model relates to a lightning protection isolator for a direct-to-home signal line and a power socket with the same. The isolator comprises a three-core plug, an access cable, a shell, a relay, a signal inlet line socket, a signal outlet line socket and piezoresistors, wherein the L and N lines of the access cable are connected to both ends of a relay coil; the piezoresistors are respectively connected in parallel between the L and N lines and the PE line as well as between the signal inlet line and the PE line; and relay contacts are connected in series on a connection line between the signal inlet line socket and the signal outlet line socket. The power socket with the isolator further comprises a power switch and a plug hole group, wherein the PE and N lines of the plug hole group are respectively connected to the PE and N lines of the access cable; and the L line is connected with one end of the relay coil and then connected to the L line of the access cable through the power switch. By using the isolator and the power socket with the same, the direct-to-home signal line can be automatically switched on when an electric appliance is energized for use and can be disconnected and isolated when the electric appliance is deenergized; and the lightning-induced high-voltage damage to any electric appliance connected to the power socket can be avoided at any time.

Description

A kind of holding wire lightning protection isolator and have the supply socket of this isolator of registering one's residence

Technical field

The utility model relates to a kind of family expenses or industrial electric apparatus annex, the holding wire lightning protection isolator and have the supply socket of this isolator of promptly registering one's residence.

Background technology

At present; Known unit, family register one's residence holding wire (current temporary finger telephone wire, netting twine, closed edge train etc.; Down with) all do not have a reliable Lightning Protection, particularly at this holding wire under non-working condition, do not have specialty to break off or xegregating unit; For lightning protection can only be broken off it by manual work; Troublesome poeration is also forgotten easily---and behind lightning induction high pressure intrusion signal line or power line, all can directly enter into inner power unit or the signal section of electrical appliance (current temporary finger phone, computer, TV etc., down together), very easily cause its infringement and cause secondary disaster.

Summary of the invention

For overcoming the above problems; The utility model provides a kind of can isolate the service wire signal path automatically and with the holding wire lightning protection isolator (hereinafter to be referred as isolator) of registering one's residence of incorporating lightning prevention circuit on the electrical appliance socket power line into, a kind of supply socket that can directly break off the electrical appliance power supply and have this isolator is provided also simultaneously when the electrical appliance socket power breaks off.

The technical scheme that the utility model adopted is: this isolator comprises the standard three-prong plug and inserts cable, in its box body, is provided with piezo-resistance, relay (containing relay coil and contact, down together), signal leading-in socket, signal output socket etc.; Three-prong plug PE, L, N go up mutually to be connected to respectively and insert cable PE, L, N line; The relay coil two ends are connected to be inserted on cable L line, the N line; Insert between cable L line, N line, holding wire end of incoming cables and the PE line and be parallel with piezo-resistance respectively, be in series with relay contact on the line between signal leading-in socket, the signal output socket.When using this isolator; Directly three-prong plug is inserted in the electrical appliance supply socket; Register one's residence holding wire, input signal cable of electrical appliance is inserted into respectively in signal leading-in socket, the signal output socket, when the electrical appliance socket power is connected, the relay coil adhesive of also switching on simultaneously in the isolator; Its sets of contacts closure is connected holding wire, and electrical appliance gets final product operate as normal; Finish using and only need close the electrical appliance socket power, its sets of contacts of relay coil dead electricity is broken off in the isolator, indoor, outdoor signal line is broken off isolate; Inner at isolator simultaneously; Be parallel with piezo-resistance respectively between electrical appliance power supply L, N line and signal leading-in socket and the PE line; In case the piezo-resistance conducting was incorporated on the ground wire PE thereby will respond to high pressure when the induction high pressure was arranged, and reached the purpose of protection electrical appliance main circuit and signal circuit.

In the supply socket with this holding wire lightning protection isolator of registering one's residence, also comprise mains switch, insertion hole groups, its insertion hole groups PE is connected with the holding wire lightning protection isolator PE line of registering one's residence; N links to each other with an end of isolator N line and coil, links to each other with isolator L line through mains switch after L links to each other with the other end of relay coil, and this socket has the function of register one's residence holding wire lightning protection isolator and switch socket simultaneously.

The beneficial effect of the utility model is: use the related isolator of the utility model and have the socket of this isolator, before and after electrical appliance uses, need not plug and unplug the holding wire of registering one's residence and also can automatically electrical appliance holding wire indoor and outdoor part reliably be isolated; And can at any time the moment lightning induction high pressure that possibly invade holding wire and power line be incorporated on the ground wire PE, prevent that it is to being connected in the infringement of all devices on the electrical appliance socket; According to the isolator of the utility model production and have the supply socket of this isolator, device is few, simple in structure, cost is low, easy to install, is easy to promote the use of in addition.

Description of drawings

Fig. 1 is the holding wire lightning protection isolator schematic diagram of registering one's residence.

Fig. 2 is the supply socket schematic diagram that has the signal lighting protection isolator of registering one's residence.

Description of reference numerals

1. three-prong plug 2. inserts cable 3. signal leading-in sockets 4. isolator housings

5. signal output socket 6. insertion hole groups housings 7. insertion hole groups 8. mains switches

L. live wire N. zero line PE. ground wire

R1 ~ R4. piezo-resistance KA1 ~ KA2. relay contact KA. relay coil.

Embodiment

Be illustrated in figure 1 as the execution mode of the holding wire isolator of registering one's residence; Comprise in the isolator housing 4: signal leading-in socket 3, signal output socket 5, relay coil KA, relay contact KA1 ~ KA2 (are 2 groups of contacts among the figure; Its quantity can increase and decrease according to actual needs), piezo-resistance R1 ~ R4 (quantity is 4 among the figure, and its quantity can increase and decrease according to actual needs); There are three-prong plug 1, the access cable 2 that is connected respectively mutually of L, N, PE with it in isolator housing 4 outsides; Insert the L line of cable 2, the two ends that the N line is connected to relay coil KA; Relay contact KA1, KA2 are connected on the line between signal leading-in socket, the signal output socket, are parallel with piezo-resistance R1 ~ R4 respectively between KA1, KA2 end of incoming cables and access cable L line, N line and the PE line.

Before using three-prong plug 1 is inserted in the electrical appliance supply socket; Be communicated with the electrical appliance signal line, connect the electrical appliance socket power, it is closed that relay coil KA gets the electric relay contact KA1 ~ KA2 that makes; Holding wire is connected; Electrical appliance can normally use, and this moment is because the special role of piezo-resistance R1 ~ R4 (conducting was low resistance state when voltage surpassed the nominal rating value, when voltage is lower than this value, returned to high-impedance state again); The moment lightning induction high pressure that possibly invade on holding wire or the power line causes ground wire PE, guarantees that electrical appliance is without prejudice; Finish using and break off the power supply of electrical appliance supply socket; Relay coil KA dead electricity, relay contact KA1 ~ KA2 breaks off, and the holding wire path is broken off; Saved the repetitive operation that often plugs holding wire by manual work; Outage back when guaranteeing electrical appliance signal receive section safety, also can guarantee to be connected in the damage that other electrical equipment on the electrical appliance socket does not receive the lightning induction high pressure because piezo-resistance still is connected in parallel on respectively between power line L, N line and KA1 ~ KA2 end of incoming cables and the PE.

Be illustrated in figure 2 as the execution mode of the supply socket that has the holding wire isolator of registering one's residence; With respect to Fig. 1; (can above-mentioned two housings be merged into a single whole during enforcement, for safety, the holding wire part should reliably be isolated with the supply socket part to have increased Socket casing 6; As be distributed in mode in two chambers of same housing etc.), insertion hole groups 7 (quantity of the jack among the figure is 1, and its quantity can increase according to actual needs), mains switch 8; The PE of insertion hole groups 7 is connected with lightning protection isolator PE line, and a N and an end that is connected to relay coil after isolator N line links to each other, the L back that links to each other with the other end of relay coil links to each other with isolator L line through mains switch.Except having the corresponding isolation of the holding wire of registering one's residence isolator, lightning protection function; This supply socket also has the function of switch socket simultaneously; Energized switch 8 i.e. the power supply of engage relay KA and insertion hole groups 7 simultaneously, while cut-off signal line path and be connected in all electrical appliance power supplys on socket during disconnecting power switch 8.

More than be the preferred embodiment of the utility model, isolation, the fractionation of lightning protection principle, the combination that the utility model embodied reached the substantive conversion of the nothing of parameter, all should be regarded as falling in the desired protection range of the utility model claims.

Claims

1. holding wire lightning protection isolator of registering one's residence, it is characterized in that this isolator mainly by three-prong plug, insert cable, isolator housing, relay, piezo-resistance, signal leading-in socket, signal output socket etc. and form; Three-prong plug PE, L, N go up mutually to be connected to respectively and insert cable PE, L, N line; The relay coil two ends are connected to be inserted on cable L line, the N line; Insert between cable L line, N line, holding wire end of incoming cables and the PE line and be parallel with piezo-resistance respectively, be in series with relay contact on the line between signal leading-in socket, the signal output socket.

2. supply socket that has the holding wire lightning protection isolator of registering one's residence is characterized in that this supply socket comprises the holding wire lightning protection isolator of registering one's residence described in claim 1, also comprises insertion hole groups, mains switch; Its insertion hole groups PE is connected with the holding wire lightning protection isolator PE line of registering one's residence, and N links to each other with an end of isolator N line and coil, links to each other with isolator L line through mains switch after L links to each other with the other end of relay coil.