CN204967230U - Cross undervoltage protection ware - Google Patents
Cross undervoltage protection ware Download PDFInfo
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- CN204967230U CN204967230U CN201520687660.1U CN201520687660U CN204967230U CN 204967230 U CN204967230 U CN 204967230U CN 201520687660 U CN201520687660 U CN 201520687660U CN 204967230 U CN204967230 U CN 204967230U
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- overvoltage
- hand switch
- supply line
- undervoltage protector
- relay
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Abstract
The utility model provides a cross undervoltage protection ware, include: hand switch, control circuit and relay, wherein, hand switch, its first end is connected with the first end live wire of power supply line, the second end is connected with the second end live wire of power supply line, control circuit, its voltage signal gather the first end of port and are connected with hand switch's common port, the second end is connected with the zero line of power supply line, the relay, its control end is connected with control circuit's control signal output, and according to the closed or disconnection of normally open contact of the control signal control relay of control signal output, the normally open contact of relay establishes ties with the first end live wire of power supply line and second end live wire mutually. This cross undervoltage protection ware can realize cross undervoltage protection ware's nimble wiring, the user's use of being convenient for through selecting to be the leading -out terminal with which end that this cross undervoltage protection ware of decision was brought in in first end or second to the hand switch closure for inlet wire end, which end.
Description
Technical field
The utility model relates to low-voltage distribution technical field, relates in particular to a kind of overvoltage-undervoltage protector.
Background technology
Overvoltage or under-voltage may be produced because of the change of bulk loads in supply line, cause the damage of other power consumption equipment.In order to safeguard the safety of supply line, need to carry out overvoltage and under-voltage protection to supply line.Wherein, under-voltage protection refers generally to when supply line's voltage is lower than a set point, and protective device cuts off supply line automatically, and when line voltage distribution recovers normal by the time, protective device can recover by automatic or manual again; Overvoltage protection refers generally to when line voltage distribution is more than a set point, and protective device cuts off supply line automatically, and when line voltage distribution recovers normal by the time, protective device can recover by automatic or manual again.
In order to simplify circuit structure further; there is the overvoltage-undervoltage protector being integrated with under-voltage protection function and over-voltage protecting function; it comprises control circuit and the relay of overvoltage-undervoltage protector; the control circuit of overvoltage-undervoltage protector obtains line voltage signal value; and by line voltage signal value compared with preset range; when line voltage signal value is higher than the maximum in preset range or lower than minimum value in preset range; control relay action; cut off current supply circuit, thus the overvoltage achieved supply line or under-voltage protection.
Overvoltage-undervoltage protector of the prior art can only fix a termination power, other electrical equipment of another termination or load, that is: inlet wire termination power, and other electrical equipment of outlet termination or load, pay particular attention to the position at electrical equipment two ends when wires design; Especially; when same road circuit protected by other electrical equipment such as overvoltage-undervoltage protector and circuit breaker simultaneously; because the leading-out terminal of overvoltage-undervoltage protector and circuit breaker is generally in the same side; this just to need circuit from the leading-out terminal of circuit breaker again around opposite side (end of incoming cables) wiring to overvoltage-undervoltage protector; this just brings inconvenience to wiring, and is unfavorable for the neat and artistic of wiring.
Utility model content
Therefore, the technical problems to be solved in the utility model is the defect overcoming overvoltage-undervoltage protector wiring inconvenience of the prior art, thus provides a kind of overvoltage-undervoltage protector.
For this reason, the technical solution of the utility model is as follows:
A kind of overvoltage-undervoltage protector, comprising: hand switch, control circuit and relay, wherein,
Hand switch, its first end is connected with the first end live wire of supply line; Second end is connected with the second end live wire of described supply line;
Control circuit, the first end of its voltage signal acquisition port is connected with the common port of described hand switch; Second end is connected with the zero line of described supply line;
Relay, its control end is connected with the control signal output of described control circuit, it is closed or disconnect that the control signal exported according to described control signal output controls the normally opened contact of described relay, and the normally opened contact of described relay and the first end live wire of supply line and the second end live wire are in series.
Preferably, when described hand switch closes in first end, the first end of supply line described in the inlet wire termination of described overvoltage-undervoltage protector, the second end of supply line described in the outlet termination of described overvoltage-undervoltage protector; When described hand switch closes in the second end, the second end of supply line described in the inlet wire termination of described overvoltage-undervoltage protector, the first end of supply line described in the outlet termination of described overvoltage-undervoltage protector.
Preferably, described hand switch is single-pole double-throw switch (SPDT).
Preferably, described hand switch is ship type switch.
Preferably, described hand switch, described control circuit and described relay are arranged in a housing.
Preferably, described hand switch is arranged at the upper right corner of described housing.
Preferably, described housing is provided with the end of incoming cables of overvoltage-undervoltage protector corresponding to the current described hand switch closure state of instruction and the position of leading-out terminal.
Technical solutions of the utility model, tool has the following advantages:
1. the utility model provides a kind of overvoltage-undervoltage protector, and by arranging hand switch in overvoltage-undervoltage protector, and the first end of this hand switch is connected with the first end live wire of supply line; Second end is connected with the second end live wire of supply line; Common port is connected with the first end of the voltage signal acquisition port of control circuit.In actual use, when this hand switch closes in first end, then control circuit can gather voltage signal by the first end live wire (live wire be connected with overvoltage-undervoltage protector end of incoming cables) of supply line and zero line (end of incoming cables zero line or leading-out terminal zero line), if there is overvoltage or under-voltage phenomenon, then export control signal by the control signal output of control circuit to Control end, the normally opened contact of control relay disconnects, and cuts off the power supply of supply line second end (load end); When this hand switch closes in the second end; then control circuit can gather voltage signal by the second end live wire (live wire be connected with overvoltage-undervoltage protector end of incoming cables) of supply line and zero line (end of incoming cables zero line or leading-out terminal zero line); if there is overvoltage or under-voltage phenomenon; then export control signal by the control signal output of control circuit to Control end; the normally opened contact of control relay disconnects, and cuts off the power supply of supply line's first end (load end).This overvoltage-undervoltage protector just making the utility model provide can be end of incoming cables (power end) by selecting hand switch to close which end deciding this overvoltage-undervoltage protector in first end or the second end; which end is leading-out terminal (load end); achieve the flexible wiring of overvoltage-undervoltage protector, user-friendly.
2. the utility model provides a kind of overvoltage-undervoltage protector; by hand switch, control circuit and relay being arranged in a housing; and on housing, be provided with the end of incoming cables of overvoltage-undervoltage protector corresponding to instruction current manual switch closed condition and the position of leading-out terminal; this is convenient to for determining the position that current manual switch is closed; namely being convenient to which end of this overvoltage-undervoltage protector when user determines current manual switch closed position is end of incoming cables; which end is leading-out terminal; to ensure that wiring is accurate, avoid misconnection.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is execution modes more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the overvoltage-undervoltage protector structured flowchart in the utility model embodiment;
Fig. 2 a and 2b is the wiring schematic diagram of the overvoltage-undervoltage protector in the utility model embodiment;
Reference numeral: 1-hand switch; 2-control circuit; 3-relay.
Embodiment
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can also be the connection of two element internals, can be wireless connections, also can be wired connection.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
In addition, if below in the described different execution mode of the present invention involved technical characteristic do not form conflict each other and just can be combined with each other.
Embodiment 1
As shown in Figure 1, this enforcement provides a kind of overvoltage-undervoltage protector, comprising: hand switch 1, control circuit 2 and relay 3, wherein,
Hand switch 1, its first end is connected with the first end live wire of supply line; Second end is connected with the second end live wire of supply line.As a kind of specific implementation, this hand switch 1 can be the control switch of other types such as single-pole double-throw switch (SPDT), single-pole double throw ship type switch, toggle switch or push-button switch.
Control circuit 2, the first end of its voltage signal acquisition port is connected with the common port (namely in Fig. 1, the c of hand switch 1 holds) of hand switch 1; Second end is connected with the zero line of supply line (that is: first end zero line or the second end zero line).This control circuit 2 adopts the control circuit for relaying protection industry of the prior art, does not elaborate at this.
Relay 3, its control end is connected with the control signal output of control circuit 2, the normally opened contact of the control signal control relay 3 exported according to control signal output is closed or disconnect, and the normally opened contact of relay 3 and the first end live wire of supply line and the second end live wire are in series.
In actual use, when hand switch 1 closes in first end, the first end (power end) of the inlet wire termination supply line of overvoltage-undervoltage protector, second end (load end) of the outlet termination supply line of overvoltage-undervoltage protector; As shown in Figure 2 a, this hand switch 1 closes when upside, then think and close in first end, and now the end of incoming cables of overvoltage-undervoltage protector is N1 terminal and L1 terminal, and leading-out terminal is N2 terminal and L2 terminal; Certainly because end of incoming cables is connected with the zero line of leading-out terminal, so L1 terminal and L2 terminal are actually equivalence.
When hand switch 1 closes in the second end, second end (power end) of the inlet wire termination supply line of overvoltage-undervoltage protector, the first end (load end) of supply line described in the outlet termination of overvoltage-undervoltage protector.As shown in Figure 2 b, this hand switch 1 closes when downside, then think and close in the second end, and now the end of incoming cables of overvoltage-undervoltage protector is N2 terminal and L2 terminal, and leading-out terminal is N1 terminal and L1 terminal; Certainly because end of incoming cables is connected with the zero line of leading-out terminal, so L1 terminal and L2 terminal are actually equivalence.
Due to the overvoltage-undervoltage protector that the present embodiment provides, when hand switch 1 closes in first end, then control circuit 2 can gather voltage signal by the first end live wire (live wire be connected with overvoltage-undervoltage protector end of incoming cables) of supply line and zero line (end of incoming cables zero line or leading-out terminal zero line), if there is overvoltage or under-voltage phenomenon, then export control signal by the control signal output of control circuit 2 to relay 3 control end, the normally opened contact of control relay 3 disconnects, and cuts off the power supply of supply line second end (load end); When hand switch 1 closes in the second end; then control circuit 2 can gather voltage signal by the second end live wire (live wire be connected with overvoltage-undervoltage protector end of incoming cables) of supply line and zero line (end of incoming cables zero line or leading-out terminal zero line); if there is overvoltage or under-voltage phenomenon; then export control signal by the control signal output of control circuit 2 to relay 3 control end; the normally opened contact of control relay 3 disconnects, and cuts off the power supply of supply line's first end (load end).This overvoltage-undervoltage protector just making the present embodiment provide can be end of incoming cables (power end) by selecting hand switch 1 to close which end deciding this overvoltage-undervoltage protector in first end or the second end; which end is leading-out terminal (load end); achieve the flexible wiring of overvoltage-undervoltage protector, user-friendly.
On the basis of such scheme, hand switch 1, control circuit 2 and relay 3 are arranged in a housing, and this is convenient to user and installs and uses, and are arranged in housing and have dust-proof effect.
On the basis of such scheme, hand switch 1 is arranged at the upper right corner of described housing.
On the basis of such scheme, housing is provided with the end of incoming cables of overvoltage-undervoltage protector corresponding to instruction current manual switch 1 closure state and the position of leading-out terminal.As shown in figures 2 a and 2b, when hand switch 1 closure state is upside, now the N1 terminal of overvoltage-undervoltage protector and L1 terminal are end of incoming cables, so wiring on denoting on the upside of housing; When hand switch 1 closure state is downside, now the N2 terminal of overvoltage-undervoltage protector and L2 terminal are end of incoming cables, so denote lower wiring on the downside of housing.Setting like this is convenient to for determining the position that current manual switch 1 is closed, and being namely convenient to which end of this overvoltage-undervoltage protector when user determines current manual switch 1 make position is end of incoming cables, and which end is leading-out terminal, to ensure that wiring is accurate, avoids misconnection.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range that the utility model creates.
Claims (7)
1. an overvoltage-undervoltage protector, is characterized in that, comprising: hand switch (1), control circuit (2) and relay (3), wherein,
Hand switch (1), its first end is connected with the first end live wire of supply line; Second end is connected with the second end live wire of described supply line;
Control circuit (2), the first end of its voltage signal acquisition port is connected with the common port of described hand switch (1); Second end is connected with the zero line of described supply line;
Relay (3), its control end is connected with the control signal output of described control circuit (2), it is closed or disconnect that the control signal exported according to described control signal output controls the normally opened contact of described relay (3), and the normally opened contact of described relay (3) and the first end live wire of supply line and the second end live wire are in series.
2. overvoltage-undervoltage protector according to claim 1, it is characterized in that, when described hand switch (1) closes in first end, the first end of supply line described in the inlet wire termination of described overvoltage-undervoltage protector, the second end of supply line described in the outlet termination of described overvoltage-undervoltage protector;
When described hand switch (1) closes in the second end, the second end of supply line described in the inlet wire termination of described overvoltage-undervoltage protector, the first end of supply line described in the outlet termination of described overvoltage-undervoltage protector.
3. overvoltage-undervoltage protector according to claim 1 and 2, is characterized in that, described hand switch (1) is single-pole double-throw switch (SPDT).
4. overvoltage-undervoltage protector according to claim 3, is characterized in that, described hand switch (1) is ship type switch.
5., according to the arbitrary described overvoltage-undervoltage protector of claim 1 or 2 or 4, it is characterized in that, described hand switch (1), described control circuit (2) and described relay (3) are arranged in a housing.
6. overvoltage-undervoltage protector according to claim 5, is characterized in that, described hand switch (1) is arranged at the upper right corner of described housing.
7. overvoltage-undervoltage protector according to claim 5, is characterized in that, described housing is provided with the end of incoming cables of overvoltage-undervoltage protector corresponding to current described hand switch (1) closure state of instruction and the position of leading-out terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520687660.1U CN204967230U (en) | 2015-09-07 | 2015-09-07 | Cross undervoltage protection ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520687660.1U CN204967230U (en) | 2015-09-07 | 2015-09-07 | Cross undervoltage protection ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204967230U true CN204967230U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520687660.1U Active CN204967230U (en) | 2015-09-07 | 2015-09-07 | Cross undervoltage protection ware |
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| Country | Link |
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| CN (1) | CN204967230U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106061060A (en) * | 2016-06-18 | 2016-10-26 | 安徽海螺建材设计研究院 | Illumination control system |
| CN108199345A (en) * | 2017-12-30 | 2018-06-22 | 安徽鑫龙低压电器有限公司 | A kind of Self-recover overvoltage-undervoltage protector and its application method |
| CN110600330A (en) * | 2019-10-07 | 2019-12-20 | 佛山市中协电器有限公司 | Relay and relay module |
-
2015
- 2015-09-07 CN CN201520687660.1U patent/CN204967230U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106061060A (en) * | 2016-06-18 | 2016-10-26 | 安徽海螺建材设计研究院 | Illumination control system |
| CN108199345A (en) * | 2017-12-30 | 2018-06-22 | 安徽鑫龙低压电器有限公司 | A kind of Self-recover overvoltage-undervoltage protector and its application method |
| CN110600330A (en) * | 2019-10-07 | 2019-12-20 | 佛山市中协电器有限公司 | Relay and relay module |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |