CN205751224U - A kind of M BUS Selection of chiller device - Google Patents
A kind of M BUS Selection of chiller device Download PDFInfo
- Publication number
- CN205751224U CN205751224U CN201620596208.9U CN201620596208U CN205751224U CN 205751224 U CN205751224 U CN 205751224U CN 201620596208 U CN201620596208 U CN 201620596208U CN 205751224 U CN205751224 U CN 205751224U
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- CN
- China
- Prior art keywords
- bus
- module
- dpdt relay
- output end
- power output
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- 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
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Abstract
This utility model provides a kind of M BUS Selection of chiller device, including rectification module, DC DC module and dpdt relay；The power input of DC DC module electrically connects with the power output end of rectification module；The electrical connection corresponding with first, second power output end of DC DC module with negative terminal of the coil electrode of dpdt relay；During use, the power input of rectification module electrically connects with the bus of primary M BUS host computer side；2 normally opened terminals of dpdt relay are electrically connected with primary M BUS main frame by bus；2 normally closed terminals of dpdt relay are electrically connected with M BUS main frame with secondary by bus；2 public terminals of dpdt relay are electrically connected from machine end table meter with M BUS by bus.This utility model circuit structure is simple, easy-to-connect, reliable operation without external power supply and when using, automaticity are high.
Description
Technical field
This utility model relates to the M-BUS such as water, electricity, gas, heat integrated kilowatt meter reading-out system corollary apparatus, is specifically related to a kind of M-
BUS Selection of chiller device.
Background technology
M-BUS is as a kind of principal and subordinate's half duplex communication system, and because of it, to have low cost, nonpolarity, long transmission distance etc. excellent
Point, is widely used in the copy reading of water meter, gas meter, hotlist.The network structure of M-BUS determines a M-BUS bus can only
There is a host side, and in certain applications occasion, in fact it could happen that two host side, such as " four table collection are copied " widelyd popularize at present
In project, then there will be power department and other three exterior portion doors aforesaid copy reading table meter simultaneously.Current solution has two kinds:
One is timesharing copy reading；Two is to use mechanical switch, manually selects host side of checking meter.As used timesharing copy reading, bus is deposited simultaneously
Two host side, there is the possibility working simultaneously, interfering in theory；As used mechanical switch to manually select main frame
End, though ensure that the uniqueness of host side in bus, but reduces kilowatt meter reading-out system automaticity.
Utility model content
The purpose of this utility model is: provide that a kind of circuit structure is simple, easy-to-connect, without external power supply and when using
Reliable operation, the M-BUS Selection of chiller device of integrated kilowatt meter reading-out system automaticity can be effectively improved.
The technical solution of the utility model is: M-BUS Selection of chiller device of the present utility model, it is structurally characterized in that: include
Rectification module, DC-DC module and dpdt relay；
Above-mentioned rectification module is provided with power input, first, second power output end；DC-DC module is provided with first,
Two power inputs and first, second power output end；Dpdt relay have 2 normally opened terminals, 2 normally closed terminals, 2
Individual public terminal and coil electrode, negative terminal；
First, second power input of DC-DC module is corresponding with first, second power output end of rectification module to be electrically connected
Connect；The coil electrode of dpdt relay is corresponding with first, second power output end of DC-DC module with negative terminal to be electrically connected
Connect；
During use, the power input of rectification module electrically connects with the bus of primary M-BUS host computer side；DPDT relay
2 normally opened terminals of device are electrically connected with primary M-BUS main frame by bus；2 normally closed terminals of dpdt relay pass through
Bus electrically connects with M-BUS main frame with secondary；2 public terminals of dpdt relay pass through bus with M-BUS from machine end table
Meter electrical connection.
Further scheme is: the positive pole that the first power output end is its out-put supply of above-mentioned rectification module；Rectification
The negative pole that second source outfan is its out-put supply of module；First power input of DC-DC module is the input of its power supply
The positive pole of end；The negative pole that second source input is its power input of DC-DC module；First power supply of DC-DC module is defeated
Go out the end positive pole for its power output end；The negative pole that second source outfan is its power output end of DC-DC module.
Further scheme is: above-mentioned rectification module obtains electric from the bus of primary M-BUS host computer side and exports when working
The DC voltage of 12～36V is to DC-DC module；This DC voltage of 12～36V is converted into the DC voltage of 5V by DC-DC module
Output is to dpdt relay.
This utility model has positive effect: (1) M-BUS of the present utility model Selection of chiller device, its circuit structure is simple
Single, good reliability during work, can interrupt according to priority and time check meter with M-BUS main frame, automatically switch into primary M-BUS main frame and copy
Table, to ensure the priority of checking meter of primary M-BUS main frame, it is thus possible to be effectively improved integrated kilowatt meter reading-out system automaticity.(2) originally
The M-BUS Selection of chiller device of utility model, its in use, with the primary M-BUS main frame of integrated kilowatt meter reading-out system, secondary M-BUS
Main frame and M-BUS are from the most nonpolarity requirement of connection of machine end table meter, easy-to-connect.(3) M-BUS main frame of the present utility model choosing
Selecting device, it is by obtaining electric from integrated kilowatt meter reading-out system bus, and rectified and DC-DC powers into dpdt relay after changing, nothing
Need external power supply.(4) M-BUS Selection of chiller device of the present utility model, its internal employing DC-DC module is dpdt relay
Power supply, can save circuit power consumption.
Accompanying drawing explanation
Fig. 1 is electrical block diagram of the present utility model；Also show check meter integrated with M-BUS when it uses in figure is
Primary M-BUS main frame, secondary M-BUS main frame and the M-BUS of system are from the electrical connection of machine end table meter.
Detailed description of the invention
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
(embodiment 1)
Seeing Fig. 1, the M-BUS Selection of chiller device of the present embodiment, it is mainly by rectification module, DC-DC module and DPDT
Relay forms.
Rectification module is provided with power input, the first power output end and second source outfan；DC-DC module is provided with
One, second source input and first, second power output end；Dpdt relay is normally closed type dpdt relay,
It has 2 normally opened terminals (first group of static contact), 2 normally closed terminals (second group of static contact), 2 public terminals (moving contact)
And coil electrode, negative terminal.
First power input of DC-DC module electrically connects with the first power output end of rectification module；DC-DC module
Second source input electrically connects with the second source outfan of rectification module；The coil electrode terminal of dpdt relay with
First power output end electrical connection of DC-DC module；The coil negative terminal of dpdt relay and the second of DC-DC module
Power output end electrically connects；The positive pole that first power output end is its out-put supply of rectification module；Second electricity of rectification module
Source output terminal is the negative pole of its out-put supply；The positive pole that first power input is its power input of DC-DC module；DC-
The negative pole that second source input is its power input of DC module；First power output end of DC-DC module is its power supply
The positive pole of outfan；The negative pole that second source outfan is its power output end of DC-DC module.
During use, the bus of the primary M-BUS host computer side of the power input of rectification module and the integrated kilowatt meter reading-out system of M-BUS
Electrical connection；2 normally opened terminals of dpdt relay are electrically connected with primary M-BUS main frame by bus；DPDT relay
2 normally closed terminals of device are electrically connected with M-BUS main frame with secondary by bus；2 public terminals of dpdt relay pass through
Bus electrically connects from machine end table meter with M-BUS.
The M-BUS Selection of chiller device (aftermentioned abbreviation selector) of the present embodiment, its operation principle and work process are sketched such as
Under:
The selector of the present embodiment, its in use, according to the primary M-BUS main frame determined according to priority, secondary M-BUS
Main frame, electrically connects from machine end table meter with primary M-BUS main frame, secondary M-BUS main frame and M-BUS as shown in Figure 1 by it.This
Time, secondary M-BUS main frame is electrically connected from machine end table meter with M-BUS by the dpdt relay of selector, checks meter.
When primary M-BUS main frame needs to check meter work, the bus of primary M-BUS host computer side exists the electricity of at least 12V
Pressure, the rectification module of selector obtains from the bus of primary M-BUS host computer side electric and by after rectified for this voltage, exports 12～36V
DC voltage to DC-DC module；DC-DC module this DC voltage of 12～36V is converted into the direct voltage output of 5V to
The coil of dpdt relay；Dpdt relay obtain electric after；Its 2 public terminals are connected from 2 normally closed terminals
State switch to be connected with 2 normally opened terminals, so that the dpdt relay that primary M-BUS main frame is by selector
Electrically connect from machine end table meter with M-BUS, check meter；When complete quitting work checked meter by primary M-BUS main frame, primary M-BUS
Voltage in the bus of host computer side is 0, selector dead electricity, and dpdt relay recovers initial default state, namely secondary M-
BUS main frame continues to turn on checks meter；Thus selector realizes using the preferential of M-BUS main frame according to primary M-BUS main frame with secondary
Level is different, and automatically switch the function checked meter.
Above example is the explanation to detailed description of the invention of the present utility model, rather than to restriction of the present utility model,
Person skilled in the relevant technique is in the case of without departing from spirit and scope of the present utility model, it is also possible to make various change
Changing and change and obtain the technical scheme of corresponding equivalent, it is new that the technical scheme of the most all equivalents all should be included into this practicality
The scope of patent protection of type.
Claims (3)
1. a M-BUS Selection of chiller device, it is characterised in that: include rectification module, DC-DC module and dpdt relay；
Described rectification module is provided with power input, first, second power output end；DC-DC module is provided with first, second electricity
Source input and first, second power output end；Dpdt relay has 2 normally opened terminals, 2 normally closed terminals, 2 public affairs
Terminal and coil electrode, negative terminal altogether；
The electrical connection corresponding with first, second power output end of rectification module of first, second power input of DC-DC module；
The electrical connection corresponding with first, second power output end of DC-DC module with negative terminal of the coil electrode of dpdt relay；
During use, the power input of rectification module electrically connects with the bus of primary M-BUS host computer side；Dpdt relay
2 normally opened terminals are electrically connected with primary M-BUS main frame by bus；2 normally closed terminals of dpdt relay pass through bus
Electrically connect with secondary M-BUS main frame；2 public terminals of dpdt relay are electric from machine end table meter with M-BUS by bus
Connect.
M-BUS Selection of chiller device the most according to claim 1, it is characterised in that: the first power supply of described rectification module
Outfan is the positive pole of its out-put supply；The negative pole that second source outfan is its out-put supply of rectification module；DC-DC module
The positive pole that the first power input is its power input；The second source input of DC-DC module is its power input
Negative pole；The positive pole that first power output end is its power output end of DC-DC module；The second source output of DC-DC module
End is the negative pole of its power output end.
M-BUS Selection of chiller device the most according to claim 1, it is characterised in that: from master when described rectification module works
DC voltage that is electric and that export 12～36V is obtained to DC-DC module by the bus of M-BUS host computer side；DC-DC module by this 12～
The DC voltage of 36V is converted into the direct voltage output of 5V to dpdt relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620596208.9U CN205751224U (en) | 2016-06-17 | 2016-06-17 | A kind of M BUS Selection of chiller device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620596208.9U CN205751224U (en) | 2016-06-17 | 2016-06-17 | A kind of M BUS Selection of chiller device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205751224U true CN205751224U (en) | 2016-11-30 |
Family
ID=57386772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620596208.9U Expired - Fee Related CN205751224U (en) | 2016-06-17 | 2016-06-17 | A kind of M BUS Selection of chiller device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205751224U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106611488A (en) * | 2016-12-02 | 2017-05-03 | 中国电力科学研究院 | Method and system used for multi-meter collector M-Bus port self-scheduling |
| CN107123252A (en) * | 2017-05-27 | 2017-09-01 | 南京林洋电力科技有限公司 | A kind of M BUS trailing frogs and its intelligent switching circuit |
| CN107370653A (en) * | 2017-08-14 | 2017-11-21 | 广东电网有限责任公司佛山供电局 | A kind of power communication interface switching device with automatic switching function |
| CN107516411A (en) * | 2017-09-21 | 2017-12-26 | 长沙瑞斯康通信技术有限公司 | M bus kilowatt meter reading-out systems |
| CN107564264A (en) * | 2017-09-21 | 2018-01-09 | 长沙瑞斯康通信技术有限公司 | M bus trailing frogs |
| CN109143838A (en) * | 2018-08-03 | 2019-01-04 | 湖南兴天电子科技有限公司 | A kind of underwater dedicated dual redundant switching circuit |
| CN110246322A (en) * | 2019-05-21 | 2019-09-17 | 安徽南瑞中天电力电子有限公司 | A kind of MBUS water meter collection copies switching circuit |
-
2016
- 2016-06-17 CN CN201620596208.9U patent/CN205751224U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106611488A (en) * | 2016-12-02 | 2017-05-03 | 中国电力科学研究院 | Method and system used for multi-meter collector M-Bus port self-scheduling |
| CN107123252A (en) * | 2017-05-27 | 2017-09-01 | 南京林洋电力科技有限公司 | A kind of M BUS trailing frogs and its intelligent switching circuit |
| CN107370653A (en) * | 2017-08-14 | 2017-11-21 | 广东电网有限责任公司佛山供电局 | A kind of power communication interface switching device with automatic switching function |
| CN107516411A (en) * | 2017-09-21 | 2017-12-26 | 长沙瑞斯康通信技术有限公司 | M bus kilowatt meter reading-out systems |
| CN107564264A (en) * | 2017-09-21 | 2018-01-09 | 长沙瑞斯康通信技术有限公司 | M bus trailing frogs |
| CN109143838A (en) * | 2018-08-03 | 2019-01-04 | 湖南兴天电子科技有限公司 | A kind of underwater dedicated dual redundant switching circuit |
| CN109143838B (en) * | 2018-08-03 | 2022-02-11 | 湖南兴天电子科技股份有限公司 | Special dual-redundancy switching circuit for underwater |
| CN110246322A (en) * | 2019-05-21 | 2019-09-17 | 安徽南瑞中天电力电子有限公司 | A kind of MBUS water meter collection copies switching circuit |
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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: 20161130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |