CN208589403U - For fire-fighting and usually dual-purpose distributor breaker - Google Patents
For fire-fighting and usually dual-purpose distributor breaker Download PDFInfo
- Publication number
- CN208589403U CN208589403U CN201821169536.6U CN201821169536U CN208589403U CN 208589403 U CN208589403 U CN 208589403U CN 201821169536 U CN201821169536 U CN 201821169536U CN 208589403 U CN208589403 U CN 208589403U
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- Prior art keywords
- fighting
- fire
- electrically connected
- distributor breaker
- thermal trip
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Abstract
The utility model provides a kind of for fire-fighting and usually dual-purpose distributor breaker, including the first thermal trip, distributor breaker further include that tripping adjusts component and signal trigger assembly；Tripping adjusts the normally opened contact switch that component includes contactor；Signal trigger assembly includes the coil of trigger switch and contactor；Trigger switch is used for the closure when receiving trigger signal, triggers the normally opened contact switch closure of contactor.The distributor breaker realization of the present embodiment can combine function usually dual-purpose with fire-fighting；Meanwhile the rated current of breaker can be adjusted upwards in the cage current range of breaker, achieve the purpose that suitable for different load, and have many advantages, such as that structure is simple, be widely used.
Description
Technical field
It is the utility model relates to technical field of circuit design, in particular to a kind of to break for fire-fighting with usually dual-purpose distribution
Road device.
Background technique
With the continuous rise of large scale business and public building, Architectural Equipment is also more and more, can especially save and set
The equipment usually dual-purpose with fire-fighting of standby resource.Wherein, to equipment usually dual-purpose with fire-fighting, the control of operation requires difference,
It requires to ensure directly trip when overloading when usually using, and requires overload-alarm not trip when fire-fighting use.But it is existing
Directly tripping or only when breaker does not have the function of identifying different operating statuses or can only provide usually operating overload
Overload-alarm does not trip when can provide fire-fighting use, and therefore, the function of this breaker is incomplete, cannot apply and need together
When take into account on distribution loop usually dual-purpose with fire-fighting.
In addition, the route protection for being used for the equipment such as Double Speed Fan, the double speed water pump of two kinds of operating statuses of star-delta is disconnected
It in the device of road, is only capable of providing overload protection when triangle operating status, and cannot provide and match with star-like connection operating status
Overload protection.
In addition, for some distribution boxs, because stand-by equipment power is uncertain or the later period will increase the distribution loop of equipment,
Existing back-up breaker is only used for a kind of load of rated current, and different breakers is needed replacing to different circuit, is made
With inflexible.
Utility model content
The technical problems to be solved in the utility model be in order to overcome the breaker of the prior art be unsatisfactory for combining it is flat
When and the dual-purpose defect of fire-fighting, a kind of breaker is provided.
The utility model is to solve above-mentioned technical problem by following technical proposals:
The utility model provides a kind of for fire-fighting and usually dual-purpose distributor breaker, including the first thermal trip, institute
It further includes that tripping is adjusted that the first thermal trip, which is stated, for when overheating, disconnecting the distributor breaker, the distributor breaker
Save component and signal trigger assembly；
The tripping adjusts the normally opened contact switch that component includes contactor；
The signal trigger assembly includes the coil of trigger switch and the contactor；
One end of the normally opened contact switch is electrically connected with one end of first thermal trip, the normally opened contact switch
The other end be electrically connected with the other end of first thermal trip；
One end of the trigger switch is electrically connected with one end of the coil, the other end of the trigger switch and the line
The other end of circle is used to receive trigger signal；
The trigger switch is used for the closure when receiving the trigger signal, triggers the normally opened touching of the contactor
Point closes the switch.
Preferably, it further includes adjustable resistor that the tripping, which adjusts component,；
One end of the adjustable resistor is electrically connected with the other end of the normally opened contact switch, the adjustable resistor
The other end is electrically connected with the other end of first thermal trip.
Preferably, it further includes the second thermal trip, circuit switching and alarm that the tripping, which adjusts component,；
Second thermal trip includes resistance wire and sheet metal；
One end of the resistance wire is electrically connected with the other end of the adjustable resistor, the other end of the resistance wire and institute
State the other end electrical connection of the first thermal trip；
The both ends of the circuit switching are electrically connected with the alarm respectively；
In the resistance wire when current overload, the sheet metal, which bends, drives the circuit switching to be closed, triggering
The alarm issues alarm signal.
Preferably, the distributor breaker further includes a conducting wire；
After one end of first thermal trip and one end of the normally opened contact switch disconnect, the conducting wire
One end is electrically connected with one end of first thermal trip, and the other end of the conducting wire and one end of the adjustable resistor are electrically connected
It connects.
Preferably, the trigger signal include fire-fighting signal, indicate Double Speed Fan be star-star connection when operating status
Signal or the signal for indicating operating status when double speed water pump is star-star connection.
Preferably, the distributor breaker is electrically connected with threephase asynchronous machine；
The distributor breaker further includes overcurrent release, device for under-voltage releasing equipment, shunt release and disjunction button；
One end of the overcurrent release and the first phase power electric connection, the other end of the overcurrent release and described the
The other end of one thermal trip is electrically connected；
The both ends of the device for under-voltage releasing equipment respectively with the second phase power supply and third phase power electric connection；
One end of the shunt release successively with the disjunction button, the second phase power electric connection, the shunt opening
The other end of buckle releaser and the first phase power electric connection；
The overcurrent release is for when short circuit occurs, disconnecting the distributor breaker；
The device for under-voltage releasing equipment is used to disconnect the distributor breaker when occurring under-voltage；
The shunt release is used to disconnect the distributor breaker in disjunction button closure.
Preferably, the distributor breaker includes multiple first thermal trips；
Each first thermal trip is connected in parallel with each other.
The positive effect of the utility model is:
In the utility model, by when signal generation device generate trigger signal when trigger switch be closed automatically, drive with
The coil of its contactor being connected in series opens work, and then triggers the contact closure of contactor, so that the breaker is not
Overload directly tripping when only can be realized use under normal circumstances, additionally it is possible to which realizing to work as has fire-fighting signal, indicates Double Speed Fan
The signal of operating status when for star-star connection indicates the triggerings such as the signal of operating status when double speed water pump is star-star connection
When signal, which does not trip, until heavy overload just trips, overcoming cannot be combined usually and fire-fighting
Dual-purpose defect；Meanwhile the rated current of breaker can be adjusted upwards in the cage current range of breaker, reach applicable
In the purpose of different load, and has many advantages, such as that structure is simple, is widely used.
Detailed description of the invention
Fig. 1 is that the overall structure for fire-fighting and usually dual-purpose distributor breaker of the utility model preferred embodiment is shown
It is intended to.
Fig. 2 is the first circuit knot for fire-fighting and usually dual-purpose distributor breaker of the utility model preferred embodiment
Structure schematic diagram.
Fig. 3 is the second circuit knot for fire-fighting and usually dual-purpose distributor breaker of the utility model preferred embodiment
Structure schematic diagram.
Fig. 4 is the tertiary circuit knot for fire-fighting and usually dual-purpose distributor breaker of the utility model preferred embodiment
Structure schematic diagram.
Specific embodiment
It is further illustrated below by the mode of a preferred embodiment, and completely illustrates this reality in conjunction with attached drawing to become apparent from
With novel.
As shown in Figure 1, the fire-fighting of the present embodiment and usually dual-purpose distributor breaker include the first thermal trip 1, overcurrent
Buckle releaser 2, device for under-voltage releasing equipment 3, shunt release 4, disjunction button 5, tripping adjust component 6 and signal trigger assembly 7.
Specifically, as shown in Fig. 2, distributor breaker is electrically connected with threephase asynchronous machine, the threephase asynchronous machine and three-phase
AC power source electrical connection.
One end of overcurrent release 2 is electrically connected with the first phase power supply L1 of three-phase alternating-current supply, overcurrent release 2 it is another
End is electrically connected with the other end b of the first thermal trip 1.
The both ends of device for under-voltage releasing equipment 3 third with the second phase power supply L2 and three-phase alternating-current supply of three-phase alternating-current supply respectively
Phase power supply L3 electrical connection.
One end of shunt release 4 is successively electrically connected with disjunction button 5, the second phase power supply L2, shunt release 4 it is another
End is electrically connected with the first phase power supply L1.
Overcurrent release 2 is for when short circuit occurs, disconnecting distributor breaker.
Wherein, current value when short circuit occurs for overcurrent release 2 is the snap action current setting of distributor breaker,
Cage electromotor should be 8~15 times of buckle releaser rated current；Winding-type motor should be 3~6 times of buckle releaser rated current,
Specific snap action current setting is depending on part throttle characteristics.
Device for under-voltage releasing equipment 3 is used to disconnect distributor breaker when occurring under-voltage.
Wherein, 3 setting valve of device for under-voltage releasing equipment is the 65% of voltage rating, i.e. device for under-voltage releasing equipment 3 reaches specified electricity in voltage
Pressure 65% or more when keep attracting state, when lower than voltage rating 65% when disconnect distributor breaker.It may be noted that saying
It is bright, because there is dual power supply switching under fire-fighting use state, device for under-voltage releasing equipment is in fire-fighting usually dual-purpose breaker
It can be omitted, in the common circuit that others infrequently start and for can just be used in back-up circuit.
Shunt release 4 is used to disconnect distributor breaker when disjunction button 5 is closed.
In existing distributor breaker all include above-mentioned overcurrent release 2, device for under-voltage releasing equipment 3, shunt release 4, because
Details are not described herein for this corresponding specific structure and working principle.
Wherein, distributor breaker may include multiple first thermal trips 1, each first thermal trip, 1 company of being connected in parallel to each other
It connects, reaches preferably current distributing effect.
First thermal trip 1 is for when overheating in the first thermal trip 1 because of current overload, disconnecting distribution open circuit
Device.
Wherein, overload delaying current setting valve is generally 1.1 times of rated current or so, with anti-time limit characteristic, i.e.,
Load electric current is bigger, and drop-away time is shorter.
As shown in figure 3, tripping adjusts normally opened contact switch K1, the adjustable resistor R1, second that component 6 includes contactor KM
Thermal trip 8, circuit switching K2 and alarm 9.Second thermal trip 8 includes resistance wire R2 and sheet metal A.
One end c of normally opened contact switch K1 is electrically connected with one end a of the first thermal trip 1, and normally opened contact switch K1's is another
One end is electrically connected with one end of adjustable resistor R1.
In usually use state, normally opened contact switch K1 is disconnected；Once because current overload occurs in the first thermal trip 1
When overheat, then distributor breaker is disconnected, realizes the overload protection to distributor breaker.
The other end of adjustable resistor R1 is electrically connected with one end of resistance wire R2, the heat of the other end d of resistance wire R2 and first
The other end b of buckle releaser 1 is electrically connected.
The both ends of circuit switching K2 are electrically connected with alarm 9 respectively.
As shown in figure 4, signal trigger assembly 7 includes the coil 10 of trigger switch K3 and contactor KM.
One end of trigger switch K3 is electrically connected with one end of coil 10, and the other end of trigger switch K3 is another with coil 10
End is used to receive trigger signal.
When trigger signal includes fire-fighting signal, the other end of the other end of trigger switch K3 and coil 10 respectively with distribution
The signal output terminal of signal generation apparatus in case is electrically connected, the trigger signal gone out for receiving signal output terminal.
In fire-fighting use state, normally opened contact switch K1 closure；Specifically, trigger switch K3 is used to receive triggering
It is closed when signal, band moving winding 10 is started to work, to trigger the normally opened contact switch K1 closure of contactor, realizes distribution open circuit
Device automatically switches to fire-fighting use state.
In addition, sheet metal A, which bends, drives circuit switching K2 to be closed, triggering report in resistance wire R2 when current overload
Alert device 9 enters working condition, issues alarm signal.Resistance wire R2 is that triggering overload alarm signal acts, when total loop reaches
When overload, the action current of resistance wire R2 should be that reach the first heat de- in the electric current of the sum of the first thermal trip 1 and resistance wire R2
The electric current of resistance wire R2, specifically I*Rb/ (R1+R2+Rb) are flowed through when detaining the overload setting value of device 1, wherein Rb is that the first heat is de-
The resistance value of device 1 is detained, I is the overload setting current of the first thermal trip 1.
Specifically, in fire-fighting use state, since tripping adjusts component 6 to the shunting function of the first thermal trip 1, make
Even if flow through in distributor breaker in the first phase power supply L1 main circuit electric current be greater than when being overheated in the first thermal trip 1
Corresponding electric current, the first thermal trip 1 did not occurred thermal tripping tripping still, and only issued alarm signal, while continuing to keep distribution
Breaker works on, to realize fire-fighting and usually dual-purpose function.Under normal circumstances, tripping adjusts component 6 and can shunt
Under usual use state in the first thermal trip 1 electric current half, i.e., as the master for flowing through the first phase power supply L1 in distributor breaker
Electric current increases electric current when current overload occurs for original first thermal trip 1 in circuit twice just will lead to the first thermal tripping
Device 1 carries out trip action, disconnects distributor breaker.
For guarantee route be not burned out, when distributor breaker reaches heavy overload, i.e. in the first thermal trip 1 due to
Current overload overheats, and tripping tripping disconnects distributor breaker, realizes the overload protection to distributor breaker.
In addition, the overload current in the wire R2 of general second thermal trip 8 is the metal in the first thermal trip 1
The half of silk overload current, so the resistance value of wire R2 is smaller than the resistance value of the wire in the first thermal trip 1, it is real
The electric current that wire R2 is flowed through on border in fire-fighting operating status is greater than the electric current for flowing through the wire in the first thermal trip 1,
However, it is possible to which the resistance Ra and adjustable resistor R1 by the normally opened contact switch K1 of contactor are compensated, and can be according to need
Make whole with different overload currents.
The fire-fighting of the present embodiment and usually dual-purpose distributor breaker further include a conducting wire L.
After one end c of one end a and normally opened contact switch K1 of the first thermal trip 1 are disconnected, one end e of conducting wire L
It is electrically connected with one end a of the first thermal trip 1, the other end f of conducting wire L is electrically connected with one end of adjustable resistor R1.
Overload current value is adjusted according to part throttle characteristics adjustment adjustable resistor R1, it can be in the cage electric current of distributor breaker
Increase the rated current of distributor breaker to be twice, reaches adjustable purpose.Specifically, the first thermal trip 1 with
It is Rb '=Rb//(R1+R2) that tripping, which adjusts the all-in resistance after 6 parallel connection of component,；Adjust adjustable resistor R1, tripping tune in parallel
Section component 6 can at most shunt the total current of half, so that total rated current becomes larger, while the first thermal trip 1 can provide phase
The gear of adjustable resistor R1 is arranged according to overload characteristic, change the load current value of distributor breaker can for the overload protection answered.
For example, if the adjustable resistance value of the rated current 16A of first wife's electrical circuit breakers, adjustable resistor R1 has (16/25)
Rb-R2, (16/32) Rb-R2 and infinity, then the rated current gear of distributor breaker adjusted is become from pervious 16A
16A, 25A, 32A are adjustable.If when only separately as spare distributor breaker, resistance wire R2 can be not provided with, then adjustable resistance
The resistance of device R1 can be set as (16/40) Rb, then the rated current of distributor breaker can also be expanded to 40A.Because of short delay and wink
When buckle releaser be not split, be the selectivity of safety action, so the preferably greater than not former setting valve of the adjustment of overload setting current
3 times, therefore, the rated current of distributor breaker is adjusted into 2 ranks both upwards can meet under fire-fighting use state or
For distribution back-up circuit.
In addition, mainly star-triangle is used to convert according to such equipment implementation method such as Double Speed Fan, double speed water pump
The mode of connection, i.e. high-speed cruising state when use delta connection, be star-connection when low-speed run state.According in star
Under different operating statuses when wiring and when delta connection, the different characteristic of rated current provides the overload protection to match.
At this point, trigger signal includes the signal or expression double speed water for indicating operating status when Double Speed Fan is star-star connection
The signal of operating status when pump is star-star connection.
It, can be according to Double Speed Fan or double speed water using the present embodiment distributor breaker to Double Speed Fan or double speed water pump distribution
The operating status of pump is automatically adjusted to the overload protection state to match.
Distribution open circuit when in delta connection (that is, usually use state), in Double Speed Fan or double speed water pump
Device is adjusted as when the big situation, that is, delta connection of rated current；When Double Speed Fan or double speed water pump operation connect in star
When line (that is, fire-fighting use state), the other end of the other end and coil 10 of star-star connection and trigger switch K3 is connected
It connects, realizes that Double Speed Fan or double speed water pump are also able to achieve overload protection under the operating status of star-star connection.
Specifically, the end a, b of the first thermal trip 1 is adjusted into the c of component 6, the other end d of resistance wire R2 with tripping respectively
After electrical connection, the resistance value of adjustable resistor R1 is adjusted, so that In Double Speed Fan or double
When fast water pump is under the operating status of star-star connection, normally opened contact switch K1 is in an off state, when Double Speed Fan or double speed
When water pump is switched to triangular form operating status, normally opened contact switch K1 is closed automatically, the overload setting valve of entire distribution line
It is placed to originalTimes, that is, the setting valve of the first thermal trip 1 is had adjusted, so that distribution is breaking
Device can obtain the overload to match under the operating status that Double Speed Fan or double speed water pump are star-star connection and delta connection
Protection.
In the present embodiment, by when signal generation device generate trigger signal when trigger switch be closed automatically, drive and its
The coil of the contactor of series connection opens work, and then triggers the normally opened contact switch closure of contactor, so that this is disconnected
Overload directly tripping when road device can not only realize use under normal circumstances, additionally it is possible to which realizing to work as has fire-fighting signal, indicates double
The signal of operating status when fast blower is star-star connection or the signal for indicating operating status when double speed water pump is star-star connection
Etc. trigger signals when, which does not trip, until heavy overload just trips, overcoming cannot be combined usually
The dual-purpose defect with fire-fighting；Meanwhile the rated current of breaker can be adjusted upwards in the cage current range of breaker, it reaches
To the purpose suitable for different load, and has many advantages, such as that structure is simple, is widely used.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
These are merely examples, and the protection scope of the utility model is defined by the appended claims.Those skilled in the art
Member can make numerous variations or be repaired to these embodiments under the premise of without departing substantially from the principles of the present invention and essence
Change, but these change and modification each fall within the protection scope of the utility model.
Claims (7)
1. a kind of for fire-fighting and usually dual-purpose distributor breaker, including the first thermal trip, first thermal trip are used
In when overheating, disconnecting the distributor breaker, which is characterized in that the distributor breaker further includes that tripping adjusts component
With signal trigger assembly；
The tripping adjusts the normally opened contact switch that component includes contactor；
The signal trigger assembly includes the coil of trigger switch and the contactor；
One end of the normally opened contact switch is electrically connected with one end of first thermal trip, the normally opened contact switch it is another
One end is electrically connected with the other end of first thermal trip；
One end of the trigger switch is electrically connected with one end of the coil, the other end of the trigger switch and the coil
The other end is used to receive trigger signal；
The trigger switch is used for closure, the normally opened contact for triggering the contactor when receiving the trigger signal and opens
It closes and closes.
2. being used for fire-fighting and usually dual-purpose distributor breaker as described in claim 1, which is characterized in that the tripping is adjusted
Component further includes adjustable resistor；
One end of the adjustable resistor is electrically connected with the other end of the normally opened contact switch, the adjustable resistor it is another
End is electrically connected with the other end of first thermal trip.
3. being used for fire-fighting and usually dual-purpose distributor breaker as claimed in claim 2, which is characterized in that the tripping is adjusted
Component further includes the second thermal trip, circuit switching and alarm；
Second thermal trip includes resistance wire and sheet metal；
One end of the resistance wire is electrically connected with the other end of the adjustable resistor, the other end of the resistance wire and described the
The other end of one thermal trip is electrically connected；
The both ends of the circuit switching are electrically connected with the alarm respectively；
In the resistance wire when current overload, the sheet metal, which bends, drives the circuit switching to be closed, described in triggering
Alarm issues alarm signal.
4. being used for fire-fighting and usually dual-purpose distributor breaker as claimed in claim 2, which is characterized in that the distribution open circuit
Device further includes a conducting wire；
After one end of first thermal trip and one end of the normally opened contact switch disconnect, one end of the conducting wire
It is electrically connected with one end of first thermal trip, the other end of the conducting wire is electrically connected with one end of the adjustable resistor.
5. being used for fire-fighting and usually dual-purpose distributor breaker as described in claim 1, which is characterized in that the trigger signal
Including fire-fighting signal, indicate Double Speed Fan be star-star connection when operating status signal or indicate double speed water pump be star-star connection
When operating status signal.
6. being used for fire-fighting and usually dual-purpose distributor breaker as described in claim 1, which is characterized in that the distribution open circuit
Device is electrically connected with threephase asynchronous machine；
The distributor breaker further includes overcurrent release, device for under-voltage releasing equipment, shunt release and disjunction button；
One end of the overcurrent release and the first phase power electric connection, the other end of the overcurrent release and first heat
The other end of buckle releaser is electrically connected；
The both ends of the device for under-voltage releasing equipment respectively with the second phase power supply and third phase power electric connection；
One end of the shunt release successively with the disjunction button, the second phase power electric connection, the shunted exciter tripping
The other end of device and the first phase power electric connection；
The overcurrent release is for when short circuit occurs, disconnecting the distributor breaker；
The device for under-voltage releasing equipment is used to disconnect the distributor breaker when occurring under-voltage；
The shunt release is used to disconnect the distributor breaker in disjunction button closure.
7. being used for fire-fighting and usually dual-purpose distributor breaker as described in claim 1, which is characterized in that the distribution open circuit
Device includes multiple first thermal trips；
Each first thermal trip is connected in parallel with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821169536.6U CN208589403U (en) | 2018-07-20 | 2018-07-20 | For fire-fighting and usually dual-purpose distributor breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821169536.6U CN208589403U (en) | 2018-07-20 | 2018-07-20 | For fire-fighting and usually dual-purpose distributor breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208589403U true CN208589403U (en) | 2019-03-08 |
Family
ID=65541819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821169536.6U Expired - Fee Related CN208589403U (en) | 2018-07-20 | 2018-07-20 | For fire-fighting and usually dual-purpose distributor breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208589403U (en) |
-
2018
- 2018-07-20 CN CN201821169536.6U patent/CN208589403U/en not_active Expired - Fee Related
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190308 |
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| CF01 | Termination of patent right due to non-payment of annual fee |