CN201758278U - Bus bar controller - Google Patents
Bus bar controller Download PDFInfo
- Publication number
- CN201758278U CN201758278U CN2010202671949U CN201020267194U CN201758278U CN 201758278 U CN201758278 U CN 201758278U CN 2010202671949 U CN2010202671949 U CN 2010202671949U CN 201020267194 U CN201020267194 U CN 201020267194U CN 201758278 U CN201758278 U CN 201758278U
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- signal
- unit
- limiting resistance
- comparing unit
- bus controller
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Abstract
The utility model discloses a bus bar controller, which comprises a signal input unit, and is characterized in that the signal input unit is respectively connected to a signal comparison unit and a grounding current-limiting resistor, wherein the signal comparison unit is connected with an optical relay output unit. With the structure, the bus bar controller has the advantages that firstly, the size is small, so that on-site installation and debugging are more convenient; secondly, due to the adoption of the signal comparison circuit, the precision is high; and thirdly, the structure is simple, the production cost is lower, and the performance-price ratio is high.
Description
Relate to the field
The utility model relates to the DC power cabinet field, particularly a kind of bus controller.
Background technology
DC power cabinet provides stable power for electric equipment, is widely used in each occasion.Traditional direct current cabinet adopts insulation relay, voltage relay and flashing relay to wait and controls insulation, bus overvoltage, undervoltage warning and flashing light alarm respectively, detect in real time the dc bus situation, when positive and negative bus takes place by ground connection, when busbar voltage is higher or lower than set point, do not report to the police when the switch position signal of switch cubicle does not conform to actual position signal.In whole warning circuit, adopted a plurality of relays, but, brought inconvenience to Installation and Debugging owing to drawbacks such as there are the cost height in relay, and volume is big, efficient is low.
A kind of novel bus controller is provided, and it is problems that prior art need solve that the voltage on the dc bus is carried out being convenient to on-the-spot Installation and Debugging when conduct monitoring at all levels is judged.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of bus controller, to reach in the purpose of the voltage on the dc bus being carried out be convenient to when conduct monitoring at all levels is judged on-the-spot Installation and Debugging.
For solving the problems of the technologies described above, the technical solution of the utility model is, a kind of bus controller, comprise signal input unit, it is characterized in that: described signal input unit is connected respectively to signal comparing unit and ground connection current-limiting resistance, the signal comparing unit inserts the optical relay output unit, thereby realizes the power cabinet bus is carried out omnibearing monitoring by simple comparator circuit.
Described signal input unit respectively inserts signal comparing unit with the switch cubicle position signalling for positive and negative busbar voltage after inserting divider resistance, thereby realizes the dual collection to positive and negative busbar voltage, switch cubicle position signalling.
Be provided with current-limiting resistance between described signal comparing unit and the optical relay output unit, thereby realized the optical relay output unit is carried out overcurrent protection.
Be provided with memory in the described signal comparing unit, storage overvoltage set point, under voltage set point, standard signal position provide the data of comparison for the signal comparing unit.
Described ground connection current-limiting resistance inserts a current-limiting resistance.
A kind of bus controller, owing to adopt said structure, this device has the following advantages: 1, volume is little, convenient on-the-spot installation and debugging; 2, adopt comparison circuit, accuracy height; 3, simple in structure, production cost is lower, the cost performance height.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail;
Fig. 1 is a kind of bus controller structural representation of the utility model;
Fig. 2 is mistake, the under voltage alarm principle figure of a kind of bus controller of the utility model;
Fig. 3 is the flashing light alarm schematic diagram of a kind of bus controller of the utility model;
Fig. 4 is the insulation alarm principle figure of a kind of bus controller of the utility model;
In Fig. 1,1, signal input unit; 2, signal comparing unit; 3, optical relay output unit; 4, ground connection current-limiting resistance; 5, memory.
Embodiment
As shown in Figure 1, a kind of bus controller, comprise signal input unit 1, it is characterized in that: described signal input unit 1 is connected respectively to signal comparing unit 2 and ground connection current-limiting resistance 4, signal comparing unit 2 inserts optical relay output unit 3, thereby realizes the power cabinet bus is carried out omnibearing monitoring by simple comparator circuit.
Be provided with current-limiting resistance between signal comparing unit 2 and the optical relay output unit 3, thereby realized optical relay output unit 3 is carried out overcurrent protection.
Be provided with memory 5 in the signal comparing unit 2, be used for storing overvoltage set point, under voltage set point, standard signal position provide comparison for the signal comparing unit data.
Ground connection current-limiting resistance 4 inserts a current-limiting resistance.
After the utility model collects outside bus signal, carry out Signal Processing, when fault such as ground connection, overvoltage occurring when signal, report to the police by each signal characteristic decision output flashing light alarm or relay output or insulation etc.
As shown in Figure 2, excessively, under voltage is reported to the police to after the positive and negative busbar voltage process divider resistance dividing potential drop input signal being passed to signal comparing unit 2; Signal comparing unit 2 and the overvoltage set point that configures, under-voltage set point pass to optical relay output unit 3 with output signal by current-limiting resistance after relatively, after collecting busbar voltage, enter comparator through behind the electric resistance partial pressure, determine whether overvoltage or under-voltage after comparing with the set point of overvoltage or under voltage, through current-limiting resistance, export then by optical relay.
As shown in Figure 3, flashing light alarm passes to signal comparing unit 2 for the switch cubicle position signalling, signal comparing unit 2 passes to optical relay output unit 3 with output signal by current-limiting resistance after comparing with standard position signal, when the switch position signal of judging switch cubicle does not conform to actual position signal, behind current-limiting resistance, send alarm signal by optical relay.
As shown in Figure 4, insulation is reported to the police and to be advanced access ground connection current-limiting resistance behind the divider resistance for positive and negative busbar voltage; And in the ground connection current-limiting resistance, add current-limiting resistance, and mainly detect the positive and negative insulation situation of bus, when bus insulation resistance drops to less than 20K, then send alarm signal.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present utility model and technical scheme to carry out; or directly apply to other occasion without improvement, all within protection range of the present utility model.
Claims (5)
1. a bus controller comprises signal input unit (1), it is characterized in that: described signal input unit (1) is connected respectively to signal comparing unit (2) and ground connection current-limiting resistance (4), and signal comparing unit (2) inserts optical relay output unit (3).
2. a kind of bus controller according to claim 1 is characterized in that: described signal input unit (1) respectively inserts signal comparing unit (2) with the switch cubicle position signalling for positive and negative busbar voltage after inserting divider resistance.
3. a kind of bus controller according to claim 1 is characterized in that: be provided with current-limiting resistance between described signal comparing unit (2) and the optical relay output unit (3).
4. a kind of bus controller according to claim 1 is characterized in that: described signal comparing unit (2) is connected to memory (5).
5. a kind of bus controller according to claim 1 is characterized in that: described ground connection current-limiting resistance (4) inserts a current-limiting resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202671949U CN201758278U (en) | 2010-07-20 | 2010-07-20 | Bus bar controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202671949U CN201758278U (en) | 2010-07-20 | 2010-07-20 | Bus bar controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201758278U true CN201758278U (en) | 2011-03-09 |
Family
ID=43645567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202671949U Expired - Fee Related CN201758278U (en) | 2010-07-20 | 2010-07-20 | Bus bar controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201758278U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655083A (en) * | 2016-09-19 | 2017-05-10 | 深圳市康凯斯信息技术有限公司 | Wide voltage power supply protection device and method for electric car vehicle equipment |
| CN107800127B (en) * | 2016-08-30 | 2021-07-16 | 中国飞行试验研究院 | Power distribution device based on optical relay |
-
2010
- 2010-07-20 CN CN2010202671949U patent/CN201758278U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107800127B (en) * | 2016-08-30 | 2021-07-16 | 中国飞行试验研究院 | Power distribution device based on optical relay |
| CN106655083A (en) * | 2016-09-19 | 2017-05-10 | 深圳市康凯斯信息技术有限公司 | Wide voltage power supply protection device and method for electric car vehicle equipment |
| CN106655083B (en) * | 2016-09-19 | 2019-06-11 | 深圳市康凯斯信息技术有限公司 | A kind of the Width funtion apparatus for protecting power supply and method of electric-vehicle-mounted equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110309 Termination date: 20130720 |