CN206650430U - The protection circuit and protective plug-in unit of distributed control means - Google Patents
The protection circuit and protective plug-in unit of distributed control means Download PDFInfo
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- CN206650430U CN206650430U CN201720473845.1U CN201720473845U CN206650430U CN 206650430 U CN206650430 U CN 206650430U CN 201720473845 U CN201720473845 U CN 201720473845U CN 206650430 U CN206650430 U CN 206650430U
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- protection circuit
- control means
- distributed control
- input
- transient voltage
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Abstract
The utility model provides a kind of protection circuit of distributed control means, and distributed control means have several input/output ports, and protection circuit is arranged at one between input/output port and field apparatus.Protection circuit includes a fuse and a transient voltage suppressor.Fuse can be connected between input/output port and field apparatus, and one end of transient voltage suppressor is connected to one end of fuse connection input/output port, the other end ground connection of transient voltage suppressor.Protection circuit of the present utility model, distributed control means can be protected without damage when running into forceful electric power voltage or surge current.The utility model additionally provides the protective plug-in unit for including above-mentioned protection circuit.
Description
Technical field
It the utility model is related to a kind of protection circuit, especially a kind of protection circuit for distributed control means.And
Protective plug-in unit with above-mentioned protection circuit.
Background technology
In the automatic control system of modern industry, field apparatus generally goes through several wires and is connected to a distributed AC servo system
On device, due to needing the quantity of wiring more, the distance between binding post is closer, is come in by scene through wire string strong
Piezoelectric voltage or surge current often puncture the air gap between binding post, and then cause distributed control means can not
Normal work.
Utility model content
The purpose of this utility model is to provide a kind of protection circuit of distributed control means, can come in wire string
Protect distributed control means without damage when forceful electric power voltage or surge current.
Another purpose of the present utility model is to provide a kind of protective plug-in unit, can in the forceful electric power voltage that wire string is come in or
Protect distributed control means without damage during person's surge current.
The utility model provides a kind of protection circuit of the distributed control means of distributed control means, distributed AC servo system
Device has several input/output ports, and protection circuit is arranged at one between input/output port and field apparatus.Protection electricity
Road includes a fuse and a transient voltage suppressor.Fuse can be connected to input/output port and scene is set
Between standby, one end of transient voltage suppressor is connected to one end of fuse connection input/output port, and transient electrical is constrained
The other end ground connection of diode processed.
The protection circuit of distributed control means provided by the utility model, when the voltage-to-ground of field apparatus access exceedes
During the threshold voltage of high power voltage transient diode, high power voltage transient diode moment shorted to earth, caused moment
The blown fuse that high current will be contacted with wire, so as to isolate harmful high voltage and distributed control means, avoid damaging
Bad distributed control means.
In another exemplary embodiment of protection circuit, fuse uses direct insertion quick-acting fuse.
In another exemplary embodiment of protection circuit, transient voltage suppressor is the pole of SMCJ33CA types two
Pipe.
The utility model also provides a kind of protective plug-in unit of the distributed control means of distributed control means, including one
Printed circuit board, first connector, second connector and several above-mentioned protection circuits.First connector is arranged at
Printed circuit board, it includes several first connection terminals, and the first connection terminal can connect correspondingly with input/output port
Connect；Second connector is arranged at printed circuit board, and it includes several second connection end, and second connection end can be set with scene
It is standby to connect correspondingly；Protection circuit is arranged at printed circuit board, the fuse of each protection circuit be connected to corresponding to one
Between first connection terminal and second connection end, one end of transient voltage suppressor is connected to fuse connection the
One connection terminal, one end other end ground connection of transient voltage suppressor.
In another exemplary embodiment of protective plug-in unit, 62 pins of the first connector and the second connector respectively
D connector.
In another exemplary embodiment of protective plug-in unit, protection circuit is 57.
Hereafter by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, the protection to distributed control means
Above-mentioned characteristic, technical characteristic, advantage and its implementation of circuit and protective plug-in unit are entered a step explanation.
Brief description of the drawings
The following drawings only does schematic illustration and explanation to the utility model, does not limit the scope of the utility model.
Fig. 1 is for illustrating that a kind of circuit of exemplary embodiment of the protection circuit of distributed control means is illustrated
Figure.
Fig. 2 is for illustrating that a kind of circuit of exemplary embodiment of the protective plug-in unit of distributed control means is illustrated
Figure.
Fig. 3 is the structural representation for illustrating a kind of exemplary embodiment of the protective plug-in unit of distributed control means
Figure.
Label declaration
10 protection circuits
12 fuses
14 transient voltage suppressors
20 first connectors
22 first binding posts
30 second connectors
32 second binding posts
40 distributed control means
50 field apparatus
60 protective plug-in units
62 printed circuit boards.
Embodiment
In order to which the technical characteristic of utility model, purpose and effect are more clearly understood, now control illustrates this
The embodiment of utility model, in the various figures identical label represent that structure is identical or structure is similar but function identical portion
Part.
Herein, " schematic " expression " serving as example, example or explanation ", will should not be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to a preferred or more advantageous technical scheme of kind.
Fig. 1 is for illustrating that a kind of circuit of exemplary embodiment of the protection circuit of distributed control means is illustrated
Figure, reference picture 1, distributed control means 40 have several input/output ports 42, and it is defeated that protection circuit 10 is arranged at an input
Between exit port 42 and field apparatus 50.Protection circuit 10 includes a fuse 12 and a transient voltage suppressor
14.Fuse 12 can be connected between input/output port 42 and field apparatus 50, and the fuse 12 can select self- recoverage
Fuse or other conventional protection elements.One end of transient voltage suppressor 14 is connected to fuse 12 and connects input and output
One end of port 42, the other end ground connection of transient voltage suppressor 14.
The protection circuit of distributed control means provided by the utility model, when the voltage-to-ground that field apparatus 50 accesses surpasses
During the threshold voltage of too high power voltage transition diode 14, voltage transient diode 14 moment shorted to earth, caused moment
High current fuses fuse 12, so as to isolate harmful high voltage and distributed control means, avoids distributed AC servo system from filling
The damage put.
In exemplary embodiment, fuse 12 is direct insertion quick-acting fuse.Direct insertion quick-acting fuse is easy to pacify
Dress, and reaction speed is fast, can preferably play a protective role.
In exemplary embodiment, transient voltage suppressor 14 is SMCJ33CA type diodes.
The utility model also provides a kind of protective plug-in unit of the distributed control means 40 of distributed control means, and Fig. 2 is
For a kind of circuit diagram for the exemplary embodiment for illustrating protective plug-in unit, Fig. 3 is one kind for illustrating protective plug-in unit
The structural representation of exemplary embodiment.Reference picture 2 and Fig. 3, protective plug-in unit 60 include printed circuit board 62, one the
20, second connectors 30 of a connector and several above-mentioned protection circuits 10.First connector 20 is arranged at printed circuit
Plate 62, it includes several first connection terminals 22 (one is only indicated in figure), and the first connection terminal 22 can be with input and output
Port 42 connects correspondingly.Second connector 30 is arranged at printed circuit board 62, and it includes several second connection end 32
(one is only indicated in figure), second connection end 32 can be connected correspondingly with field apparatus 50.Schematically implementing
In mode, the first connector 20 and the second connector 30 are respectively 62 pin D connectors, can facilitate and connect with being also provided with D types
Connect distributed control means 40 and the corresponding connection of field apparatus 50 of device.In exemplary embodiment, protective plug-in unit has five
17 protection circuits 10, but be not limited thereto, can also be according to the quantity for being actually needed adjustment protection circuit 10, protection
Circuit 10 is arranged at printed circuit board 62, and each protection circuit 10 (one is only indicated in figure) is connected to first connection terminal
Between 22 and second connection end 32, wherein, fuse 12 is connected to corresponding first connection terminal 22 and one
Between second connection end 32, one end of transient voltage suppressor 14 is connected to fuse 12 and connects the first connection terminal 22
One end, transient voltage suppressor 14 the other end ground connection.
Protective plug-in unit 60 conveniently and efficiently can access protection circuit 10 input/output terminal of distributed AC servo system equipment 40
Between mouth 42 and field apparatus 50, the damage of forceful electric power voltage or surge current to distributed control means is prevented.
It should be appreciated that although this specification is described according to each embodiment, not each embodiment only includes one
Individual independent technical scheme, this narrating mode of specification is only that those skilled in the art will should say for clarity
Bright book is as an entirety, and the technical solutions in the various embodiments may also be suitably combined, and forming those skilled in the art can be with
The other embodiment of understanding.
Tool of the one serial detailed description of those listed above only for possible embodiments of the present utility model
Body illustrates that they are simultaneously not used to limit the scope of protection of the utility model, all to be made without departing from the utility model skill spirit
Equivalent embodiments or change, such as the combination, segmentation or repetition of feature, should be included in the scope of protection of the utility model it
It is interior.
Claims (6)
1. the protection circuit (10) of distributed control means (40), the distributed control means (40) have several input and output
Port (42), the protection circuit (10) are arranged between an input/output port (42) and field apparatus (50), its
It is characterised by, the protection circuit (10) includes：
One fuse (12), it can be connected between the input/output port (42) and the field apparatus (50)；And
One transient voltage suppressor (14), one end of the transient voltage suppressor (14) are connected to the insurance
Silk (12) connects one end of the input/output port (42), the other end ground connection of the transient voltage suppressor (14).
2. protection circuit (10) as claimed in claim 1, it is characterised in that the fuse (12) is protected using direct insertion fast thawing
Dangerous silk.
3. protection circuit (10) as claimed in claim 1, it is characterised in that the transient voltage suppressor (14) uses
SMCJ33CA type diodes.
4. the protective plug-in unit (60) of distributed control means (40), it is characterised in that including：
One printed circuit board (62)；
One the first connector (20), it is arranged at the printed circuit board (62), and first connector (20) includes several
First connection terminal (22), first connection terminal (22) can connect correspondingly with the input/output port (42)
Connect；
One the second connector (30), it is arranged at the printed circuit board (62), and second connector (30) includes several
Second connection end (32), the second connection end sub (32) can be connected correspondingly with the field apparatus (50)；And
Several protection circuit (10), the protection circuits (10) as claimed any one in claims 1 to 3 are arranged at the print
Circuit board (62) processed, the fuse (12) of each protection circuit (10) are connected to first connection terminal (22)
Between a second connection end sub (32), one end of the transient voltage suppressor (14) is connected to the insurance
Silk (12) connects one end of first connection terminal (22), the other end ground connection of the transient voltage suppressor (14).
5. protective plug-in unit (60) as claimed in claim 4, it is characterised in that first connector (20) and described second connects
It is respectively 62 pin D connectors to connect device (30).
6. protective plug-in unit (60) as claimed in claim 5, it is characterised in that the protection circuit (10) is 57.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720473845.1U CN206650430U (en) | 2017-04-28 | 2017-04-28 | The protection circuit and protective plug-in unit of distributed control means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720473845.1U CN206650430U (en) | 2017-04-28 | 2017-04-28 | The protection circuit and protective plug-in unit of distributed control means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206650430U true CN206650430U (en) | 2017-11-17 |
Family
ID=60276740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720473845.1U Active CN206650430U (en) | 2017-04-28 | 2017-04-28 | The protection circuit and protective plug-in unit of distributed control means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206650430U (en) |
-
2017
- 2017-04-28 CN CN201720473845.1U patent/CN206650430U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. A1051-1, Nanjing High tech Industrial Development Zone, Nanjing, Jiangsu Province, 211100 Patentee after: Siemens Energy Automation (Nanjing) Co.,Ltd. Address before: No. A1051-1, Nanjing High tech Industrial Development Zone, Nanjing, Jiangsu Province, 211100 Patentee before: SIEMENS POWER PLANT AUTOMATION Ltd. |