CN206313481U - A kind of noiseless power supply - Google Patents
A kind of noiseless power supply Download PDFInfo
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- CN206313481U CN206313481U CN201621370398.9U CN201621370398U CN206313481U CN 206313481 U CN206313481 U CN 206313481U CN 201621370398 U CN201621370398 U CN 201621370398U CN 206313481 U CN206313481 U CN 206313481U
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Abstract
Originally it is practical newly to disclose a kind of noiseless power supply, including voltage regulating rectifier charging module, the first switching device, the second switching device, the first batteries and the second batteries, first switching device is in parallel with the both positive and negative polarity of extraneous electrical equipment and for controlling the first relay, second switching device is in parallel with the both positive and negative polarity of extraneous electrical equipment and for controlling the second relay, first relay and the second relay are single-pole double throw double-contact relay, and one group of first, second batteries can be made to power external electric equipment, another group is electrically charged.The device can constantly keep electrical equipment and charge power supply keeps the state of open circuit, and, to the direct current supply that voltage stabilization is provided with equipment, be disturbed so as to the electromagnetic noise for avoiding external noise and charge power supply itself is produced to electrical equipment with batteries.
Description
Technical field
The utility model is related to a kind of power supply, and in particular to a kind of to power supply of the electrical equipment without electromagnetic interference.
Background technology
In recent years, Switching Power Supply is developed rapidly with the good advantage of its efficiency high, small volume, output stability.But,
Due to the high-frequency in the Switching Power Supply course of work, di/dt high and dv/dt characteristics high, to outside electromagnetic interference problem very
It is prominent.The electromagnetic noise of Switching Power Supply can be divided into two major classes from for noise source.One class is external noise, is such as passed by power network
, to interference of switching power source control circuit etc., another kind of is switch electricity for the defeated common mode for coming and differential mode noise, external electromagnetic radiation
From the electromagnetic noise that body is produced, harmonic wave and electromagnetic interference that such as the current spike of switching tube and rectifying tube is produced.It is domestic
CCIB and CCEE certifications instead of with new 3C certifications, the requirement of new 3C certifications to Switching Power Supply in terms of electromagnetic compatibility
Specify in further detail and strictly.The electromagnetic interference problem for how reducing even elimination charge power supply has become whole world switch electricity
The problem that source designer and EMC Design teacher pay special attention to.Additionally, risen a secondary device in transformer station at present melting
The trend of conjunction, secondary device is directly merged and is attached on primary equipment, and power supply used by such secondary device is easier to secondary
Equipment produces electromagnetic interference.
Utility model content
The purpose of this utility model is to provide a kind of noiseless power supply, and the device can constantly keep electrical equipment and charge
Power supply keep open circuit state, and with batteries come to equipment provide voltage stabilization direct current supply, so as to avoid outside
The electromagnetic noise of noise and charge power supply itself produces interference to electrical equipment.
To achieve the above object, the utility model takes following technical scheme：
A kind of noiseless power supply, including voltage regulating rectifier charging module, the first switching device, the second switching device, the first storage
Battery pack and the second batteries, the first switching device are in parallel with the both positive and negative polarity of extraneous electrical equipment and for controlling the first relay
Device, the second switching device is in parallel with the both positive and negative polarity of extraneous electrical equipment and is used for the second relay of control, the first relay and the
Two relays are single-pole double throw double-contact relay；The contact of centre two of the first relay connects the positive and negative of the first batteries
Pole, first contact and the second contact of one end connect the both positive and negative polarity of voltage regulating rectifier charging module, the 3rd contact of the other end and the 4th
Contact connects the both positive and negative polarity of extraneous electrical equipment；The contact of centre two of the second relay connects the both positive and negative polarity of the second batteries, one end
The first contact and the second contact connect the both positive and negative polarity of voltage regulating rectifier charging module, the 3rd contact of the other end and the 4th contact connect outer
The both positive and negative polarity of boundary's electrical equipment.
Preferably, the first contact of first relay, the second contact are normally open, and middle two contact and the 3rd touch
Point, the 4th contact are normally off；3rd contact of second relay, the 4th contact are normally open, the first contact, the
Two contacts and intermediate contact are normally off.
Preferably, electric capacity and Storage Battery Monitor Unit are additionally provided with, the electric capacity, Storage Battery Monitor Unit are outer with described respectively
Boundary's electrical equipment is in parallel.
Preferably, the first physical switch is provided between the 3rd contact of first relay and extraneous electrical equipment, is adjusted
Repoussage current charge module enters line and is provided with the second physical switch, and the first physical switch and the second physical switch are linked.
Preferably, first switching device and the second switching device are used to realize following logics：When first physics
After switch is connected with the second physical switch, electricity in the first switching device and the second switching device, and perform step（B）And step
（D）, waiting is until the voltage of the first batteries is less than threshold value；Then step is performed（A）And step（D）, wait until second
Accumulator battery voltage is less than threshold value, then performs step（B）And step（D）, and so circulate, the step（A）, step（B）、
Step（C）, step（D）For：
Step（A）First switching device commands electricity on the first relay, and the first group storage battery is disconnected with extraneous electrical equipment electricity
Open, while voltage regulating rectifier charging module and the electrical connection of the first batteries；
Step（B）First switching device commands the first relay electric-loss, voltage regulating rectifier charging module and the first group storage battery
Disconnect, while the first batteries are electrically connected with extraneous electrical equipment；
Step（C）Second switching device commands electricity, voltage regulating rectifier charging module and the second batteries on the second relay
Disconnect, while the second batteries are electrically connected with extraneous electrical equipment；
Step（D）Second switching device commands the second relay electric-loss, and the second batteries are electrically disconnected with electrical equipment, together
When voltage regulating rectifier charging equipment and the second batteries electrical connection.
The utility model is operated by each relay in switching device control relay group, realizes the first storage
Battery pack and the second batteries are only electrically connected with external electric equipment or charge power supply respectively in the same period, and can
State exchange is attached, charge power supply is not in contact with electrical equipment, so as to avoid the various electromagnetism of generation
Interference.The voltage reduction of the batteries being connected with external electric equipment that switching device can be measured according to voltage measurement unit
Situation, automatically can control to switch in time.
Brief description of the drawings
Fig. 1 is the utility model structure and line schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawings, the utility model is described further：
As shown in figure 1, this noiseless power supply has voltage regulating rectifier charging module 1, the first batteries 2 and the second battery
Group 3, switching device 4 includes the first switching device and the second switching device, and the first switching device controls the first relay 5, second
Switching device controls the second relay 6, the first relay 5 and the second relay 6 to use single-pole double throw double-contact relay, the
The contact of centre two of one relay 5 connects the both positive and negative polarity of the first batteries 2, the first contact J1-1 and the second contact J1-2 of one end
The both positive and negative polarity of voltage regulating rectifier charging module 1 is connect, the 3rd contact J1-3 of the other end and the 4th contact J1-4 connect extraneous electrical equipment 7
Both positive and negative polarity；The contact of centre two of the second relay 6 connects the both positive and negative polarity of the second batteries 3, the first contact J2-1 of one end and
Second contact J2-2 connects the both positive and negative polarity of voltage regulating rectifier charging module 1, and the 3rd contact J2-3 of the other end and the 4th contact J2-4 connect
The both positive and negative polarity of extraneous electrical equipment 7.First contact J1-1, the second contact J1-2 of the first relay 5 are normally open, middle two
Contact and the 3rd contact J1-3, the 4th contact J1-4 are normally off；3rd contact J2-3 of the second relay, the 4th contact
J2-4 is normally open, and the first contact J2-1, the second contact J2-3 and intermediate contact are normally off.
The first physical switch K1 is provided between 3rd contact J1-3 of the first relay 5 and extraneous electrical equipment 7, pressure regulation is whole
Current charge module 1 enters line and is provided with the second physical switch K2, and the first physical switch and the second physical switch are linked, i.e., and one
Rise and open or close together.
First switching device and the second switching device have control function, and the first relay 5 of control and the second relay 6 are moved
Make and implement following logics：After the first physical switch K1 and the second physical switch K2 is connected, the first switching device
It is electric with the second switching device, and perform step（B）And step（D）, waiting is until the voltage of the first batteries is less than threshold
Value；Then step is performed（A）And step（D）, wait until the second accumulator battery voltage is less than threshold value, then perform step（B）
And step（D）, and so circulate, the step（A）, step（B）, step（C）, step（D）For：
Step（A）First switching device commands electricity on the first relay, and the first group storage battery is disconnected with extraneous electrical equipment electricity
Open, while voltage regulating rectifier charging module and the electrical connection of the first batteries；
Step（B）First switching device commands the first relay electric-loss, voltage regulating rectifier charging module and the first group storage battery
Disconnect, while the first batteries are electrically connected with extraneous electrical equipment；
Step（C）Second switching device commands electricity, voltage regulating rectifier charging module and the second batteries on the second relay
Disconnect, while the second batteries are electrically connected with extraneous electrical equipment；
Step（D）Second switching device commands the second relay electric-loss, and the second batteries are electrically disconnected with electrical equipment, together
When voltage regulating rectifier charging equipment and the second batteries electrical connection.
First switching device and the second switching device can be built with custom circuit, and the technology is prior art, and first cuts
The both positive and negative polarity of changing device and the second switching device with extraneous electrical equipment is in parallel, to obtain power supply.
Electric capacity 8 and Storage Battery Monitor Unit 9 can also be parallel between the both positive and negative polarity of extraneous electrical equipment, electric capacity can be with
The influence to external electric equipment after the unexpected dead electricity of circuit is prevented, Storage Battery Monitor Unit can be used to monitor external electric equipment
Terminal voltage.
The present embodiment is the explanation that the utility model is conceived and realized, is not limited, in this reality
With under new design, the technical scheme without essence conversion is still in protection domain.
Claims (4)
1. a kind of noiseless power supply, including voltage regulating rectifier charging module, the first switching device, the second switching device, the first electric power storage
Pond group and the second batteries, it is characterised in that the first switching device is in parallel with the both positive and negative polarity of extraneous electrical equipment and for controlling
The first relay is made, the second switching device is in parallel with the both positive and negative polarity of extraneous electrical equipment and for controlling the second relay, first
Relay and the second relay are single-pole double throw double-contact relay；The contact of centre two of the first relay connects the first battery
The both positive and negative polarity of group, first contact and the second contact of one end connect the both positive and negative polarity of voltage regulating rectifier charging module, and the 3rd of the other end touches
Point and the 4th contact connect the both positive and negative polarity of extraneous electrical equipment；The contact of centre two of the second relay connects the positive and negative of the second batteries
Pole, first contact and the second contact of one end connect the both positive and negative polarity of voltage regulating rectifier charging module, the 3rd contact of the other end and the 4th
Contact connects the both positive and negative polarity of extraneous electrical equipment.
2. noiseless power supply as claimed in claim 1, it is characterised in that the first contact of first relay, second touch
Point is normally open, and middle two contact and the 3rd contact, the 4th contact are normally off；The 3rd of second relay touches
Point, the 4th contact are normally open, and the first contact, the second contact and intermediate contact are normally off.
3. noiseless power supply as claimed in claim 2, it is characterised in that be additionally provided with electric capacity and Storage Battery Monitor Unit, it is described
Electric capacity, Storage Battery Monitor Unit are in parallel with the extraneous electrical equipment respectively.
4. the noiseless power supply as described in claim 1,2 or 3, it is characterised in that the 3rd contact of first relay and
The first physical switch is provided between extraneous electrical equipment, voltage regulating rectifier charging module enters line and is provided with the second physical switch, and
One physical switch and the second physical switch are linked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621370398.9U CN206313481U (en) | 2016-12-14 | 2016-12-14 | A kind of noiseless power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621370398.9U CN206313481U (en) | 2016-12-14 | 2016-12-14 | A kind of noiseless power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206313481U true CN206313481U (en) | 2017-07-07 |
Family
ID=59253264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621370398.9U Active CN206313481U (en) | 2016-12-14 | 2016-12-14 | A kind of noiseless power supply |
Country Status (1)
| Country | Link |
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| CN (1) | CN206313481U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380606A (en) * | 2019-08-21 | 2019-10-25 | 济南瑞森智能科技有限公司 | A kind of power supply unit switching shielding electromagnetic interference using timing |
| CN111026156A (en) * | 2019-12-17 | 2020-04-17 | 北京京东乾石科技有限公司 | Inspection system, method, control device, equipment and storage medium |
-
2016
- 2016-12-14 CN CN201621370398.9U patent/CN206313481U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380606A (en) * | 2019-08-21 | 2019-10-25 | 济南瑞森智能科技有限公司 | A kind of power supply unit switching shielding electromagnetic interference using timing |
| CN111026156A (en) * | 2019-12-17 | 2020-04-17 | 北京京东乾石科技有限公司 | Inspection system, method, control device, equipment and storage medium |
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