CN209001569U - A kind of anti-phase-lacking protective device of grain machine equipment - Google Patents
A kind of anti-phase-lacking protective device of grain machine equipment Download PDFInfo
- Publication number
- CN209001569U CN209001569U CN201821976467.XU CN201821976467U CN209001569U CN 209001569 U CN209001569 U CN 209001569U CN 201821976467 U CN201821976467 U CN 201821976467U CN 209001569 U CN209001569 U CN 209001569U
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- China
- Prior art keywords
- phase
- protector
- contactor
- grain machine
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of anti-phase-lacking protective devices of grain machine equipment, it includes motor and L1, L2, L3 three-phase circuit connected to it；L1, L2, L3 three-phase circuit respectively corresponds U, V, W three-phase；1 fuse of group, contactor and electrothermal relay are equipped between L1, L2, L3 three-phase circuit and motor；L2 the and L3 circuitry phase is equipped with protector II and contactor with motor parallel；2 fuses of group are respectively equipped between L2 the and L3 circuitry phase and protector II and contactor；Compound button and electrothermal relay are equipped between 2 fuses of the contactor and group.When open-phase fault occurs for route; protector can disconnect the work of control circuit; enable the power supply of control circuit off device; it prevents from causing equipment to burn out because of distribution line open-phase fault; the safety of power load is protected, there are technical problem inconvenient to use for the grain machine circuitry of the effective solution prior art.
Description
Technical field
The utility model belongs to grain machine circuitry technical field, and in particular to a kind of anti-open-phase protection dress of grain machine equipment
It sets.
Background technique
In grain machine equipment, as power source, motor is played an irreplaceable role.The control electricity of action foodstuff unloading apparatus and storage machine
Case is mounted on the side of equipment, and vehicle and action foodstuff unloading apparatus are usually only kept at a distance from tens centimeters in unloading operation process, herein away from
From interior operation equipment, high-speed rotating mechanical transmission component and the unloading vehicle moved at any time, which exist, damages operator
May, therefore all series connection is equipped with emergency stop switch.
But it will lead to electricity due to equipment cable line failure, plug loosening, the end of a thread poor contact etc. in use
Motivation phase-deficient operation, the failure for burning motor happen occasionally, so adapting to inconvenient.
Utility model content
In order to solve the grain machine circuitry of the prior art there are technical problem inconvenient to use, the utility model is provided
A kind of anti-phase-lacking protective device of grain machine equipment, with overcome the deficiencies in the prior art.
To achieve the goals above, the utility model uses following technical scheme:
A kind of anti-phase-lacking protective device of grain machine equipment, it includes motor and L1, L2, L3 three-phase circuit connected to it；
L1, L2, L3 three-phase circuit respectively corresponds U, V, W three-phase；It is molten that group 1 is equipped between L1, L2, L3 three-phase circuit and motor
Disconnected device, contactor and electrothermal relay；L2 the and L3 circuitry phase is equipped with protector II and contactor with motor parallel；The L2
2 fuses of group are respectively equipped between L3 circuitry phase and protector II and contactor；It is set between 2 fuses of the contactor and group
There are compound button and electrothermal relay.
Further, the compound button includes normally closed button SB1 and normally opened button SB2；It is set on the normally opened button SB2
There is auxiliary normally opened contact in parallel.
Further, the protector II uses DZ15D-40 model protector, voltage rating: 220V-400V, specified electricity
Flow 25-63A.
Further, L1 the and L2 circuitry phase is equipped with the protector I with motor parallel；The structure of the protector I and
Connection type is identical as protector II.
When open-phase fault occurs for route, protector can disconnect the work of control circuit, enable control circuit off device
Power supply, prevent from causing equipment to burn out because of distribution line open-phase fault, protect the safety of power load, effective solution is existing
With the presence of the technical problem that the grain machine circuitry of technology is inconvenient to use.
Detailed description of the invention
Fig. 1 is the utility model electrical block diagram.
1 in figure, 1 fuse 2 of group, organize 2 fuses 3, protector I 4, electrothermal relay 5, motor 6, protector
II 7, contactor.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, 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, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
Embodiment 1: according to Fig. 1, a kind of anti-phase-lacking protective device of grain machine equipment, it includes motor 6 and connected to it
L1, L2, L3 three-phase circuit；L1, L2, L3 three-phase circuit respectively corresponds U, V, W three-phase；L1, L2, L3 three-phase circuit with
1 fuse 1 of group, contactor and electrothermal relay 4 are equipped between motor 5；L2 the and L3 circuitry phase is equipped with the guarantor with motor parallel
Protect device II6 and contactor 7；2 fuses 2 of group are respectively equipped between L2 the and L3 circuitry phase and protector II and contactor；Institute
It states and is equipped with compound button and electrothermal relay between 2 fuses of contactor and group.
The compound button includes normally closed button SB1 and normally opened button SB2；The normally opened button SB2 is equipped in parallel
Assist normally opened contact.
Start button SB2 is contact switch open in usual, i.e., start button SB2 under normal circumstances is the state disconnected, is pressed
After can connect circuit, hand can be restored to the state of disconnection again after unclamping, the start button SB2 is serially connected with ac contactor coil
In the power supply line of KM, since start button SB2 is contact switch open in usual, start button SB2 can be connected after pressing
The power supply line of ac contactor coil KM, but due to manpower unclamp after start button SB2 will disconnect again, and then enable exchange connect
Tentaculum coil KM can power loss again, it is therefore desirable to self-lock switch be arranged for ac contactor coil KM.
The protector II6 uses DZ15D-40 model protector, voltage rating: 220V-400V, rated current 25-
63A。
L1 the and L2 circuitry phase is equipped with the protector I3 with motor parallel；The structure and connection type of the protector I
It is identical as protector II.
Described L1, L2 and L3 are three-phase and four-line, further include PEN phase.
The motor is successively connect with control cabinet, control switch and ifq circuit；1 fuse of group, 2 fusing of group
Device, protector I, electrothermal relay, protector II and contactor are each provided in control cabinet；Button SB1 and button SB2 are located at control cabinet
On.
The protector I and protector II is equipped with alarm module；The alarm module includes flashing lamp and buzzer.
After described L1, L2 and L3 are powered, protector obtain it is electric after in being attracted its normally opened contact end of shape closure, normally-closed contact
End disconnects.At this point, control run switch SB1 starting, A.C. contactor KM coil obtain electric actuation, A.C. contactor KM auxiliary is normally opened
Contact closure progress is self-locking, and the normally opened main contacts closure of A.C. contactor KM makes threephase motor obtain electric operation.In circuit operation,
Because certain reason causes phase shortage, protector is released immediately, and the normally opened contact of loss-of-phase relay protector will thus disconnected, from
And cut off the power supply of A.C. contactor KM coil and discharged, realize the function of power-off protection.
When open-phase fault occurs for route, protector can disconnect the work of control circuit, enable control circuit off device
Power supply, prevent from causing equipment to burn out because of distribution line open-phase fault, protect the safety of power load, effective solution is existing
With the presence of the technical problem that the grain machine circuitry of technology is inconvenient to use.
Claims (4)
1. a kind of anti-phase-lacking protective device of grain machine equipment, it includes motor and L1, L2, L3 three-phase circuit connected to it；Institute
It states L1, L2, L3 three-phase circuit and respectively corresponds U, V, W three-phase；It is characterized in that being set between L1, L2, L3 three-phase circuit and motor
There are 1 fuse of group, contactor and electrothermal relay；L2 the and L3 circuitry phase is equipped with and the protector II of motor parallel and contacts
Device；2 fuses of group are respectively equipped between L2 the and L3 circuitry phase and protector II and contactor；The contactor and group 2 are molten
Compound button and electrothermal relay are equipped between disconnected device.
2. a kind of anti-phase-lacking protective device of grain machine equipment according to claim 1, it is characterized in that: the compound button includes
Normally closed button SB1 and normally opened button SB2；The normally opened button SB2 is equipped with auxiliary normally opened contact in parallel.
3. a kind of anti-phase-lacking protective device of grain machine equipment according to claim 1, it is characterized in that: the protector II is used
DZ15D-40 model protector, voltage rating: 220V-400V, rated current 25-63A.
4. a kind of anti-phase-lacking protective device of grain machine equipment according to claim 1 or 3, it is characterized in that: L1 the and L2 phase
Circuit is equipped with the protector I with motor parallel；The structure and connection type of the protector I is identical as protector II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821976467.XU CN209001569U (en) | 2018-11-28 | 2018-11-28 | A kind of anti-phase-lacking protective device of grain machine equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821976467.XU CN209001569U (en) | 2018-11-28 | 2018-11-28 | A kind of anti-phase-lacking protective device of grain machine equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209001569U true CN209001569U (en) | 2019-06-18 |
Family
ID=66808065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821976467.XU Expired - Fee Related CN209001569U (en) | 2018-11-28 | 2018-11-28 | A kind of anti-phase-lacking protective device of grain machine equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209001569U (en) |
-
2018
- 2018-11-28 CN CN201821976467.XU patent/CN209001569U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190618 Termination date: 20191128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |