CN208369600U - network controller - Google Patents
network controller Download PDFInfo
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- CN208369600U CN208369600U CN201820960890.4U CN201820960890U CN208369600U CN 208369600 U CN208369600 U CN 208369600U CN 201820960890 U CN201820960890 U CN 201820960890U CN 208369600 U CN208369600 U CN 208369600U
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- resistance
- signal input
- network controller
- input part
- polarity free
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Abstract
The utility model discloses a kind of network controller, which can either input digital quantity by the different connection status of its four needles wire jumper in same signal input part, can also input analog quantity using the signal input part circuit specially designed.To each signal input part, user can need to select to switch between input digital quantity and input analog quantity according to input, signal input part is improved to the adaptability of different type input signal, different types of input signal can be coped with less signal input part quantity, improve the utilization rate of each signal input part, the requirement to network controller signal input part quantity is reduced, the complexity of network controller product structure is reduced.
Description
Technical field
The utility model relates to network technology more particularly to a kind of network controllers.
Background technique
Need to realize the input and output of signal, data in network communication using network controller.Network controller generally has
There are analog input interface and digital-quantity input interface, for realizing the input of signal with different type.Existing network controller
Also cannot achieve same input interface both can input analog quantity or input digital quantity, and different types of signal needs to pass through difference
The input interface of type inputs, and may cause different type input interface unreasonable distribution, different type input interface resource is not
Foot or waste, while also improving the structural complexity of network controller device.
Utility model content
The utility model main purpose is, provides a kind of network controller, can not be real to solve existing network controller
The problem of existing same input interface can both input analog quantity or input digital quantity.
The utility model is achieved by the following technical solution:
A kind of network controller, including circuit board are equipped with central processing unit, several signal input parts on the circuit board
With several signal output ends, the central processing unit and each signal input part and signal output end connection communication, the signal are defeated
Entering end includes polar capacitor C1, polarity free capacitor C2, polarity free capacitor C3, polarity free capacitor C4, resistance R1, resistance R2, resistance
R3, resistance R4, resistance R5, resistance R6, operational amplifier, four needle wire jumpers；
The anode of polar capacitor C1, one end of polarity free capacitor C2, resistance R1 one end mutually interconnected with one end of resistance R2
It connecing, the reverse input end of the other end of resistance R2, the output end of the operational amplifier and the operational amplifier is connected with each other,
One end of the positive input of the operational amplifier, one end of polarity free capacitor C3 and resistance R3 is connected with each other, resistance R3's
The second contact pin interconnection of the other end, one end of polarity free capacitor C4, one end of resistance R4 and the four needles wire jumper, described four
First contact pin of needle wire jumper is connect with one end of resistance R5, and the third contact pin of the four needles wire jumper is connect with one end of resistance R6,
4th contact pin of the four needles wire jumper is connect with the other end of resistance R4；
The cathode of polar capacitor C1, the other end of polarity free capacitor C2, the other end of resistance R1, polarity free capacitor C3 it is another
The other end of one end, the other end of polarity free capacitor C4 and resistance R6 is grounded.
Further, the network controller further includes shell, and the shell includes the top cover and bottom case mutually fastened, institute
The inner space that the heat-dissipating casing is formed after top cover and the bottom case fasten is stated, the circuit board is located at the inner space
It is interior, and be mounted on the bottom case, opening, the opening, institute opposite with each signal input part position are offered on the bottom case
It states and dismountable protective cover plate is installed in opening, the protective cover plate covers each signal input opposite with the aperture position
End.
Further, buckle is provided on the protective cover plate, the protective cover plate is blocked over said opening by buckle.
Further, there are two the openings, several signal input parts are divided into two parts, a part of signal input part
Opposite with one of aperture position, another part signal input part is opposite with another aperture position.
Further, the model LM224M of the operational amplifier.
Compared with prior art, network controller provided by the utility model utilizes the signal input part electricity specially designed
Road can either input digital quantity by the different connection status of its four needles wire jumper in same signal input part, can also input
Analog quantity.To each signal input part, user can need to select to cut between input digital quantity and input analog quantity according to input
It changes, improves signal input part to the adaptability of different type input signal, can be coped with less signal input part quantity
Different types of input signal improves the utilization rate of each signal input part, reduces to network controller signal input part number
The requirement of amount reduces the complexity of network controller product structure.
Detailed description of the invention
Fig. 1 is the electrical block diagram of signal input part in network controller provided by the utility model；
Fig. 2 is the composed structure schematic diagram of circuit board in network controller provided by the utility model；
Fig. 3 is the cap structure schematic diagram of network controller provided by the utility model；
Fig. 4 is the bottom case structure schematic diagram of network controller provided by the utility model；
Fig. 5 is the clamping schematic diagram of protective cover plate and opening.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail.
Network controller provided by the utility model, including circuit board.As shown in Fig. 2, being equipped with centre on circuit board
Manage device 1, several signal input parts 2 and several signal output ends 3, central processing unit 1 and each signal input part 2 and signal output end
3 connection communications.As shown in Figure 1, signal input part 2 include polar capacitor C1, it is polarity free capacitor C2, polarity free capacitor C3, electrodeless
Property capacitor C4, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, operational amplifier 5, four needle wire jumpers 4.Wherein
The operational amplifier of model LM224M can be used in operational amplifier 5.Wherein:
The anode of polar capacitor C1, one end of polarity free capacitor C2, resistance R1 one end mutually interconnected with one end of resistance R2
It connects, the reverse input end of the other end of resistance R2, the output end of operational amplifier 5 and operational amplifier 5 is connected with each other, and operation is put
One end of the big positive input of device 5, one end of polarity free capacitor C3 and resistance R3 is connected with each other, the other end of resistance R3, nothing
Second contact pin of one end of polar capacitor C4, one end of resistance R4 and four needle wire jumpers 4 is connected with each other, and the first of four needle wire jumpers 4 inserts
Needle is connect with one end of resistance R5, and the third contact pin of four needle wire jumpers 4 is connect with one end of resistance R6, and the 4th of four needle wire jumpers 4 inserts
Needle is connect with the other end of resistance R4.
The cathode of polar capacitor C1, the other end of polarity free capacitor C2, the other end of resistance R1, polarity free capacitor C3 it is another
The other end of one end, the other end of polarity free capacitor C4 and resistance R6 is grounded.
It, can be defeated when the first contact pin is connect with the second contact pin by jumper cap in the various connection types of four needle wire jumpers 4
Enter digital quantity, when the second contact pin is connect with third contact pin by jumper cap, 4-20mA analog quantity can be inputted, when third contact pin with
When 4th contact pin is connected by jumper cap, 0-10V DC analogue quantity can be inputted.
In conjunction with shown in Fig. 3, Fig. 4, network controller further includes shell, and shell includes the top cover 6 and bottom case 7 mutually fastened,
Top cover 6 and bottom case 7 form the inner space of heat-dissipating casing after fastening.In the internally positioned space of circuit board, and it is mounted on bottom case 7
On.Opening 71 is offered on bottom case 7, opening 71 is opposite with each 2 position of signal input part, is equipped in opening 71 dismountable anti-
Protecting cover plate 72, protective cover plate 72 cover each signal input part 2 opposite with 71 position of the opening.
As shown in figure 5, being provided with buckle 721 on protective cover plate 72, protective cover plate 72 is stuck in opening 71 by buckle 721
On.Multiple buckles 721 can be set on protective cover plate, protective cover plate 72 is stuck in securely in opening 71, it is not easy to it falls,
Facilitate unlatching, can play a very good protection to the signal input part 2 inside opening 71, especially signal can be protected defeated
Enter four needle wire jumpers 4 on end 2, avoids its damage of being collided with.
There are two such openings 71, and several signal input parts 2 are divided into two parts, a part of signal input part 2 with wherein
One 71 position of opening is opposite, and another part signal input part 2 is opposite with another 71 position of opening, in opening 71 each in this way
There is a protective cover plate 72, so that the corresponding part signal input part 2 of each opening be covered, play a protective role, when having
Signal input part 2 breaks down when needing to overhaul, and need to only open the protective cover plate 72 in corresponding opening 71.
Above-described embodiment is only preferred embodiment, the protection scope being not intended to limit the utility model, practical new at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the protection of the utility model within the spirit and principle of type
Within the scope of.
Claims (5)
1. a kind of network controller, including circuit board, be equipped on the circuit board central processing unit, several signal input parts and
Several signal output ends, the central processing unit and each signal input part and signal output end connection communication, which is characterized in that institute
Stating signal input part includes polar capacitor C1, polarity free capacitor C2, polarity free capacitor C3, polarity free capacitor C4, resistance R1, resistance
R2, resistance R3, resistance R4, resistance R5, resistance R6, operational amplifier, four needle wire jumpers；
One end interconnection of the anode of polar capacitor C1, one end of polarity free capacitor C2, one end of resistance R1 and resistance R2, electricity
The reverse input end for hindering the other end of R2, the output end of the operational amplifier and the operational amplifier is connected with each other, described
One end of the positive input of operational amplifier, one end of polarity free capacitor C3 and resistance R3 is connected with each other, and resistance R3's is another
The second contact pin interconnection at end, one end of polarity free capacitor C4, one end of resistance R4 and the four needles wire jumper, four needle are jumped
First contact pin of line is connect with one end of resistance R5, and the third contact pin of the four needles wire jumper is connect with one end of resistance R6, described
4th contact pin of four needle wire jumpers is connect with the other end of resistance R4；
The cathode of polar capacitor C1, the other end of polarity free capacitor C2, the other end of resistance R1, polarity free capacitor C3 it is another
The other end ground connection at end, the other end of polarity free capacitor C4 and resistance R6.
2. network controller as described in claim 1, which is characterized in that further include shell, the shell includes mutually fastening
Top cover and bottom case, the top cover and the bottom case form the inner space of the heat-dissipating casing, the circuit board position after fastening
It in the inner space, and is mounted on the bottom case, opening is offered on the bottom case, the opening is inputted with each signal
End position is opposite, and dismountable protective cover plate is equipped in the opening, and the protective cover plate covers opposite with the aperture position
Each signal input part.
3. network controller as claimed in claim 2, which is characterized in that buckle is provided on the protective cover plate, it is described anti-
Protecting cover plate is blocked over said opening by buckle.
4. network controller as claimed in claim 2, which is characterized in that there are two the openings, several signal inputs
End be divided into two parts, a part of signal input part is opposite with one of aperture position, another part signal input part with it is another
A aperture position is opposite.
5. network controller as claimed in claim 2, which is characterized in that the model LM224M of the operational amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820960890.4U CN208369600U (en) | 2018-06-21 | 2018-06-21 | network controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820960890.4U CN208369600U (en) | 2018-06-21 | 2018-06-21 | network controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208369600U true CN208369600U (en) | 2019-01-11 |
Family
ID=64926029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820960890.4U Active CN208369600U (en) | 2018-06-21 | 2018-06-21 | network controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208369600U (en) |
-
2018
- 2018-06-21 CN CN201820960890.4U patent/CN208369600U/en active Active
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