CN206640306U

CN206640306U - For network and the two-in-one isolated form Surge Protector of power supply

Info

Publication number: CN206640306U
Application number: CN201720327428.6U
Authority: CN
Inventors: 黎波
Original assignee: Guangdong Anxun Lightning Polytron Technologies Inc
Current assignee: Guangdong Anxun Lightning Polytron Technologies Inc
Priority date: 2017-03-30
Filing date: 2017-03-30
Publication date: 2017-11-14
Anticipated expiration: 2027-03-30

Abstract

For network and the two-in-one isolated form Surge Protector of power supply, including exchange isolation voltage changing module and Network Isolation module；Exchange isolation voltage changing module includes loop A and the coil B to intercouple；Network Isolation module includes the coil C and coil D that coil intercouples, and coil D first end is connected by the first choke coil with the first Ethernet output end, and coil D the second end is connected by the second choke coil with the second Ethernet output end；The first end of loop A passes sequentially through the second end connection of the first piezo-resistance, the second piezo-resistance and loop A；Coil C first end and the first pole of discharge tube connect, and coil C the second end and the second pole of discharge tube connect, be connected with the second piezo-resistance one termination protecting field of the first piezo-resistance；By TVS connection protecting fields, coil D tap connects the equipment reference ground of protected equipment for coil C tap.The utility model realizes surge protection and electrical isolation dual-use function between input and output end.

Description

For network and the two-in-one isolated form Surge Protector of power supply

Technical field

It the utility model is related to circuit protection device field, more particularly to a kind of two-in-one isolation for network and power supply Type Surge Protector.

Background technology

In the prior art, in the Surge Protector unified both AC power and Ethernet, AC power part it is defeated Enter and use direct-passing mode between end and output end, and input and the decoupling component of output end are generally resistance or inductance, this Kind mode protecting effect is poor, has remaining directly surge energy and enters protected equipment and force in input with exporting The mutual transmission of ground potential is carried out between end；Direct-passing mode is used between the input and output end of Ethernet signal section, And input and the decoupling component of output end are generally resistance, this mode protecting effect is poor, and level of protection is higher, and by force Make the mutual transmission that common mode current potential is carried out between input and output end.

Utility model content

The utility model provides a kind of two-in-one isolated form Surge Protector for being used for network and power supply, existing to solve The Surge Protector protecting effect that both AC powers and Ethernet in technology are unified is poor, and force input with The problem of mutual transmission of common mode current potential is carried out between output end.

To solve the above problems, as one side of the present utility model, there is provided a kind of to be used for the two of network and power supply Unify isolated form Surge Protector, including exchange isolation voltage changing module and Network Isolation module；The exchange isolation voltage changing module It is connected including the loop A to intercouple and coil B, the first end of the loop A with the first ac input end, the loop A Second end is connected with the second ac input end, and the first end of the coil B is connected with the first ac output end, the loop A Second end is connected with the second ac output end；The Network Isolation module includes the coil C and coil D that coil intercouples, institute The first end for stating coil C is connected with the first Ethernet input end, and the second end of the coil C connects with the second Ethernet input end Connecing, the first end of the coil D is connected by the first choke coil with the first Ethernet output end, and the second of the coil D End is connected by the second choke coil with the second Ethernet output end；It is pressure-sensitive that the first end of the loop A passes sequentially through first Resistance, the second piezo-resistance are connected with the second end of the loop A；The first end of the coil C and the first pole of discharge tube connect Connect, the second end of the coil C is connected with the second pole of the discharge tube, first piezo-resistance with it is described second pressure-sensitive Resistance connection one termination protecting field, and described one end be connected with second piezo-resistance of first piezo-resistance and The 3rd pole connection of the discharge tube；The tap of the coil C by TVS connection protecting fields, the tap connection of the coil D by The equipment reference ground of protection equipment.

Preferably, first piezo-resistance and second piezo-resistance are respectively wound around on choke coil magnet core.

Do not have physically between all inputs and output end of the application it is direct electrically connect, can but transmit alternating current and Network signal, so as to separate the surge in circuit.Further, since the application can effectively separate all inputs and output end Between ground potential transmission, therefore the application allows ground connection that different potentials are respectively connected between its all input and output end In system.Compared with prior art, for the utility model while surge protection is realized, its input is with output end electrically It is isolation, in the absence of the transitive relation of common mode ground potential.

Brief description of the drawings

Fig. 1 schematically shows electrical block diagram of the present utility model.

Reference in figure：1st, exchange isolation voltage changing module；2nd, Network Isolation module；3rd, loop A；4th, coil B；5th, first Ac input end；6th, the second ac input end；7th, the first ac output end；8th, the second ac output end；9th, coil C；10th, coil D；11st, the first Ethernet input end；12nd, the second Ethernet input end；13rd, the first choke coil；14th, the first Ethernet output End；15th, the second choke coil；16th, the second Ethernet output end；17th, the first piezo-resistance；18th, the second piezo-resistance；19、 Discharge tube；20th, protecting field；21、TVS；22nd, equipment reference ground；23rd, choke coil magnet core.

Embodiment

Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, but the utility model can be by right It is required that the multitude of different ways for limiting and covering is implemented.

The utility model provides a kind of two-in-one isolated form Surge Protector for network and power supply, including exchange every From voltage changing module 1 and Network Isolation module 2；The exchange isolation voltage changing module 1 includes loop A 3 and the coil B4 to intercouple, The first end of the loop A 3 is connected with the first ac input end 5, and the second end of the loop A 3 connects with the second ac input end 6 Connect, the first end of the coil B4 is connected with the first ac output end 7, the second end and the second ac output end of the loop A 3 8 connections；The Network Isolation module 2 includes coil the coil C9 and coil D10 that intercouple, the first end of the coil C9 with First Ethernet input end 11 is connected, and the second end of the coil C9 is connected with the second Ethernet input end 12, the coil D10 First end be connected by the first choke coil 13 with the first Ethernet output end 14, the second end of the coil D10 passes through Second choke coil 15 is connected with the second Ethernet output end 16；The first end of the loop A 3 passes sequentially through the first pressure-sensitive electricity The 17, second piezo-resistance 18 of resistance is connected with the second end of the loop A 3；The of the first end of the coil C9 and discharge tube 19 One pole connects, and the second end of the coil C9 is connected with the second pole of the discharge tube 19, first piezo-resistance 17 with The termination protecting field 20 that second piezo-resistance 18 connects, and first piezo-resistance 17 with the described second pressure-sensitive electricity Described one end of the connection of resistance 18 is connected with the 3rd pole of the discharge tube 19；The tap of the coil C9 is protected by TVS21 connections Shield ground, the tap of the coil D10 connect the equipment reference ground 22 of protected equipment.Equipment reference ground 22 does not connect with protecting field 20 It is logical.

Preferably, first piezo-resistance 17 and second piezo-resistance 18 are respectively wound around choke coil magnet core 23 On.

The first piezo-resistance 17, the second piezo-resistance 18 are combined with exchange isolation voltage changing module 1 in the utility model Two-in-one type SPD AC power part is formed, so that alternating current can isolate the loop A 3 and line of voltage changing module 1 by exchanging Enclose the electromagnetic conversion coupling of B4 coupling coil, filter to the first ac output end 7 and the second ac output end 8, again can be Surge energy of being released at ac input end enters protecting field.In addition, discharge tube 19, TVS21 are combined in Network Isolation module 2, Therefore can be by transformer by the differential signal differential mode coupling at the first Ethernet input end 11 and the second Ethernet input end 12 Zygonema circle is coupled by electromagnetic conversion, filtered to the first Ethernet output end 14 and the second Ethernet output end 16, and is being inputted Surge energy of being released at end enters protecting field.

Therefore, do not have physically between all inputs of the application and output end it is direct electrically connect, can but transmit friendship Stream electricity and network signal, and separated the surge in circuit, prevent surge from flowing to output end.Further, since the application can be effective Ground separates the common mode current potential transmission between all inputs and output end, therefore the application allows its all input and output end Between be respectively connected in the earthed system of different potentials.Compared with prior art, the utility model is realizing the same of surge protection When, its input and output end are also achieved in isolating electrically.

Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.

Claims

It is 1. a kind of for network and the two-in-one isolated form Surge Protector of power supply, it is characterised in that to isolate transformation including exchange Module (1) and Network Isolation module (2)；

The exchange isolation voltage changing module (1) includes the loop A (3) that intercouples and coil B (4), and the of the loop A (3) One end is connected with the first ac input end (5), and the second end of the loop A (3) is connected with the second ac input end (6), described Coil B (4) first end is connected with the first ac output end (7), the second end and the second ac output end of the loop A (3) (8) connect；

The Network Isolation module (2) includes coil the coil C (9) and coil D (10) that intercouple, and the of the coil C (9) One end is connected with the first Ethernet input end (11), and the second end of the coil C (9) connects with the second Ethernet input end (12) Connect, the first end of the coil D (10) is connected by the first choke coil (13) with the first Ethernet output end (14), described Coil D (10) the second end is connected by the second choke coil (15) with the second Ethernet output end (16)；

The first end of the loop A (3) passes sequentially through the first piezo-resistance (17), the second piezo-resistance (18) and the loop A (3) the second end connection；

The first end of the coil C (9) is connected with the first pole of discharge tube (19), and the second end of the coil C (9) is put with described The second pole connection of fulgurite (19), the termination being connected with second piezo-resistance (18) of first piezo-resistance (17) Protecting field (20), and first piezo-resistance (17) with described one end that second piezo-resistance (18) is connected with it is described The 3rd pole connection of discharge tube (19)；

The tap of the coil C (9) is protected by TVS (21) connection protecting fields (20), the tap connection of the coil D (10) The equipment reference ground (22) of equipment.
It is 2. according to claim 1 for network and the two-in-one isolated form Surge Protector of power supply, it is characterised in that institute State the first piezo-resistance (17) and second piezo-resistance (18) is respectively wound around on choke coil magnet core (23).