CN209593096U - A kind of safety circuit for distribution system - Google Patents
A kind of safety circuit for distribution system Download PDFInfo
- Publication number
- CN209593096U CN209593096U CN201920712708.8U CN201920712708U CN209593096U CN 209593096 U CN209593096 U CN 209593096U CN 201920712708 U CN201920712708 U CN 201920712708U CN 209593096 U CN209593096 U CN 209593096U
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- China
- Prior art keywords
- subcircuits
- circuit
- distribution system
- switching element
- utility
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Abstract
The utility model embodiment discloses a kind of safety circuit for distribution system, it include: the first circuit, first circuit includes more than two subcircuits, wherein the detecting element whether be connected for subcircuits where detecting is provided in each subcircuits；Output end；Circuit switching element, wherein described two above subcircuits are connected by the circuit switching element with the output end；Control element is connected with the voltage detector component in each subcircuits respectively, and the control element is also connected with the circuit switching element.The utility model can be switched to other subcircuits in subcircuits failure, without to circuit of output terminal device powers down.
Description
Technical field
The utility model embodiment is related to technical field of low-volatile distribution equipment, and in particular to a kind of peace for distribution system
Whole circuit.
Background technique
At present in low-voltage distribution system, the Switch equipment with defencive function, once trigger protection will make at switch
In off-state, causes lower end outgoing line side to power off, cause user's power outage.
Utility model content
For this purpose, the utility model embodiment provides a kind of safety circuit for distribution system, to solve in the prior art
Due to the problem of apparatus of output terminal has a power failure after protective switch triggering.
To achieve the goals above, the utility model embodiment provides the following technical solutions:
The embodiments of the present invention disclose a kind of safety circuit for distribution system, comprising: the first circuit, it is described
First circuit includes more than two subcircuits, wherein is provided in each subcircuits for subcircuits where detecting
The detecting element whether be connected；Output end；Circuit switching element, wherein described two above subcircuits pass through the electricity
Road switching element is connected with the output end；Control element is connected with the voltage detector component in each subcircuits respectively, institute
Control element is stated also to be connected with the circuit switching element.
Further, the circuit switching element is electronic switch.
Further, the electronic switch is relay.
Further, further includes: the magnetic latching relay between the circuit switching element and the output end is set,
The magnetic latching relay is connected with the control element.
Further, the control element is PLC controller.
Further, the detecting element includes at least one of voltage detector component and current measuring element.
The utility model has the advantages that
Other subcircuits can be switched in subcircuits failure, without to circuit of output terminal device powers down.
Detailed description of the invention
It, below will be to reality in order to illustrate more clearly of the embodiments of the present invention or technical solution in the prior art
It applies mode or attached drawing needed to be used in the description of the prior art is briefly described.It should be evident that attached in being described below
Figure is only exemplary, for those of ordinary skill in the art, without creative efforts, can be with
It is extended according to the attached drawing of offer and obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the utility model enforceable qualifications, therefore does not have technology
On essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the utility model institute energy
Under the effect of generation and the purpose that can reach, it should all still fall in the revealed technology contents of the utility model and obtain the model that can cover
In enclosing.
Fig. 1 is the structural block diagram of the safety circuit for distribution system of the utility model embodiment；
Fig. 2 is the circuit diagram in one example of the utility model for the safety circuit of distribution system.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily, it is clear that described embodiment is
The utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the utility model protection
Range.
In the description of the present invention, it should be understood that term " first ", " second " are used for description purposes only, and
It cannot be understood as indicating or implying relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Fig. 1 is the structural block diagram of the safety circuit for distribution system of the utility model embodiment.As shown in Figure 1, this
The safety circuit for distribution system of utility model embodiment, comprising: the first circuit 100, output end 200, circuit switching member
Part 300 and control element 400.
Wherein, the first circuit 100 can be the power supply circuit of low-voltage distribution system.First circuit 100 includes two or more
Payment circuit 110.The detecting element whether be connected for subcircuits where detecting is provided in each subcircuits 110,
Voltage for subcircuits 110 where detecting.
In one embodiment of the utility model, detecting element includes in voltage detector component and current measuring element
At least one, whether to be connected by subcircuits 110 where the voltage of detection branch or current detecting.Output end 200 is used for
Connect the electrical equipment of user.
Above-mentioned two above subcircuits 110 are connected by circuit switching element 300 with output end 200, can be passed through
The subcircuits 110 that the switching of circuit switching element 300 is connected with output end 200.
In one embodiment of the utility model, circuit switching element 300 is electronic switch.Further, electric
Son switching switch is relay.
Control element 400 is connected with the voltage detector component in each subcircuits 110 respectively, also with circuit switching element
300 are connected, the subcircuits 110 be connected with the switching of control circuit switching element 300 with output end 200.
In one embodiment of the utility model, control element 400 is PLC controller.PLC controller have with it is each
The input port that voltage detector component in subcircuits 110 is connected, PLC controller also have the output with circuit switching element
Port.
Specifically, when PLC controller detects that the voltage being currently in the subcircuits 110 of on-state is zero, meeting
Control instruction is issued to circuit switching element 300 be switched to other subcircuits 110 be connected with output end.It is being switched to other branch
After road circuit 110 is connected with output end, present branch circuit is detected by the detecting element in the subcircuits 110 after switching
Whether 110 be connected, and is connected with output end and detects again next if being not turned on and continuing to switch to next subcircuits 110
Whether subcircuits 110 are connected, and stop switching when the subcircuits 110 after switching are connected until detecting.
In one embodiment of the utility model, the safety circuit for distribution system further includes that setting switches in circuit
Magnetic latching relay between element and output end.Wherein, magnetic latching relay is connected with control element, only magnetic keep after
When electric appliance is closed, the first circuit could be connected between output end.
Fig. 2 is the circuit diagram in one example of the utility model for the safety circuit of distribution system.Such as Fig. 2 institute
Show, in an example of the utility model, the first circuit includes three first branch circuits, second branch circuit and third branch
Road circuit.First voltage device V1, second are respectively arranged in this first branch circuit, second branch circuit and third subcircuits
Voltage device V2 and tertiary voltage device V3.Circuit switching element includes the first switching relay K1 and the second switching relay K2.It is defeated
Outlet is L.Magnetic latching relay K3 is set between the second switching relay K2 and output end L.Control element is controlled using PLC
Device is connected with the first switching relay K1, the second switching relay K2 and magnetic latching relay K3 respectively.
Under original state, magnetic latching relay K3 closure, 3 contacts of the second switching relay K2 are connected to the 2nd contact, the
Three voltage device V3 are to PLC controller feedback voltage information.3 contacts of first switching relay K1 are connected to 2 contacts.
When tertiary voltage device V3 to PLC controller feedback voltage be 0 when, indicate third subcircuits break down.PLC control
Device processed sends control instruction to the second switching relay K2, so that 1 contact of the second switching relay K2 is connected to 2 contacts.
After 1 contact of the second switching relay K2 is connected to 2 contacts, PLC controller is examined by second voltage device V2
The voltage value of second branch circuit after surveying switching, if not being 0 by the voltage value that second voltage device V2 is obtained, stopping is cut
It changes；If being 0 by the voltage value that second voltage device V2 is obtained, PLC controller sends to the first switching relay K1 and controls
Instruction, so that 1 contact of the first switching relay K1 is connected to 2 contacts.
After 1 contact of the first switching relay K1 is connected to 2 contacts, after first voltage device V1 detection switching
The voltage value of first branch circuit.If not being 0 by the voltage value that first voltage device V1 is obtained, stop switching；If logical
The voltage value for crossing first voltage device V1 acquisition is 0, then controls magnetic latching relay K3 disconnection.
The utility model can be switched to other subcircuits in subcircuits failure, without to circuit of output terminal equipment
Power-off.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (6)
1. a kind of safety circuit for distribution system characterized by comprising
First circuit, first circuit include more than two subcircuits, wherein are provided with and are used in each subcircuits
The detecting element whether subcircuits where detection are connected；
Output end；
Circuit switching element, wherein described two above subcircuits pass through the circuit switching element and the output end
It is connected；
Control element is connected with the voltage detector component in each subcircuits respectively, the control element also with the circuit
Switching element is connected.
2. the safety circuit according to claim 1 for distribution system, which is characterized in that the circuit switching element is
Electronic switch.
3. the safety circuit according to claim 2 for distribution system, which is characterized in that the electronic switch is
Relay.
4. the safety circuit according to claim 1 for distribution system, which is characterized in that further include:
Magnetic latching relay between the circuit switching element and the output end, the magnetic latching relay and institute are set
Control element is stated to be connected.
5. the safety circuit according to claim 1-4 for distribution system, which is characterized in that the control member
Part is PLC controller.
6. the safety circuit according to claim 1 for distribution system, which is characterized in that the detecting element includes electricity
Press at least one of detecting element and current measuring element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920712708.8U CN209593096U (en) | 2019-05-17 | 2019-05-17 | A kind of safety circuit for distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920712708.8U CN209593096U (en) | 2019-05-17 | 2019-05-17 | A kind of safety circuit for distribution system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209593096U true CN209593096U (en) | 2019-11-05 |
Family
ID=68345366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920712708.8U Expired - Fee Related CN209593096U (en) | 2019-05-17 | 2019-05-17 | A kind of safety circuit for distribution system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209593096U (en) |
-
2019
- 2019-05-17 CN CN201920712708.8U patent/CN209593096U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220128 Address after: 250000 4-102, Baowei science and Technology Park, high tech Zone, Jinan City, Shandong Province Patentee after: Jinan Puhui Automation Technology Co.,Ltd. Address before: Room 704, 7th floor, building 306, guanganmennei street, Xicheng District, Beijing 100053 Patentee before: Zhongshengxinhe (Beijing) Intelligent Technology Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191105 |