CN2403161Y - Motor protector - Google Patents
Motor protector Download PDFInfo
- Publication number
- CN2403161Y CN2403161Y CN 99200457 CN99200457U CN2403161Y CN 2403161 Y CN2403161 Y CN 2403161Y CN 99200457 CN99200457 CN 99200457 CN 99200457 U CN99200457 U CN 99200457U CN 2403161 Y CN2403161 Y CN 2403161Y
- Authority
- CN
- China
- Prior art keywords
- utmost point
- high pressure
- power failure
- circuit
- pressure power
- 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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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a motor protector. The motor protector is composed of an outer shell, electronic elements, a circuit board, wiring terminals, etc. In a high voltage power cut system, D8, R10 and C4 form into a series circuit, wherein, C4 respectively forms into parallel circuits with the be node of R11 and BG2, and the CK node of C5, T2. R14 forms into a parallel circuit with J1 after connected in series with an AK pole of T2; the AK pole conducted by resistors R14, T2 is shunted with J1, which causes J1 not to maintain attraction and to be released. The utility model has the advantages of favorable performance, convenient use and simple operation.
Description
The utility model relates to a kind of electric motor protective device.
In the prior art; Chinese patent 92237064 discloses a multi-functional electric motor protecting device; its structure is that three relays are housed on a base; the relay winding is the three-phase electricity path; the first and last end of each winding and the contact on the base join; insulating bar laterally is housed below relay; join with armature of relay lower end, insulating bar joins with the control contact, each phase factor overload; short circuit; overvoltage makes relay work; depress face lateral isolation bar; the control contact is disconnected, and three-phase electricity is opened a way, and has protected the safety of motor; its weak point is unreasonable structure, is difficult to reach electric motor protecting effect preferably in actual use.
The purpose of this utility model is to avoid above-mentioned weak point of the prior art and a kind of functional motor protecter is provided.
In order to achieve the above object; the utility model provides a kind of new technical solution: this motor protecter is by shell; electronic component; composition such as circuit board and binding post; comprise power unit; from latching segment; switch; high pressure power failure system; low pressure power failure system; anti-lightning strike system; the overtemperature prote system; the stuck protection system of one camera; phase failure phase shortage is fallen high pressure order gram protection system; D8 in the high pressure power failure system; R10 and C4 form series circuit; positive current is by D8; R10 charges to C4; C4 respectively with R11; be knot and the C5 of BG2; the GK utmost point of T2 is formed the shunt circuit; when powering on, C4 presses when being raised to certain amplitude electric current through R11; the ce knot of BG2 charges to C5; after connecting with the T2AK utmost point, R14 forms the shunt circuit with J1; electric current R14; the AK utmost point of T2 conducting and J1 shunting causes J1 not keep adhesive and discharges.
Advantage of the present utility model is functional, easy to use, simple to operate.
Accompanying drawing is embodiment of the present utility model.
Fig. 1 is a block diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
Below in conjunction with drawings and Examples essentiality content of the present utility model is described in further detail.
This motor protecter is made up of shell, electronic component, circuit board and binding post etc.; comprise power unit, fall high pressure order gram protection system from latching segment, switch, high pressure power failure system, low pressure power failure system, anti-lightning strike system, overtemperature prote system, the stuck protection system of one camera, phase failure phase shortage; J1 two ends in the high pressure power failure system are because without any the voltage stabilizing measure, its dc voltage value is directly proportional with the AC-input voltage value.As long as after determining the ac voltage of superhigh pressure protection, select D8 voltage stabilizing value, make D8 can puncture conducting, D8, R10 and C4 form series circuit, and positive current is charged to C4 by D8, R10, and the last voltage of C4 rises gradually.C4 forms the shunt circuit with the be knot of R11, BG2 and the GK utmost point of C5, T2 respectively; when powering on, C4 presses when being raised to certain amplitude; electric current provides amplified current through R11, the BG2b utmost point, impels the BG4 conducting, after the BG2 conducting; positive current is charged to C5 from the ce knot of R13, BG2; charging voltage rises, and the T2 conducting is formed the shunt circuit with J1 after R14 connects with the T2AK utmost point; the AK utmost point of electric current R14, T2 conducting and J1 shunting causes J1 not keep adhesive and discharges the power-off protection motor.During normal alternating supply voltage, because J1 both end voltage value is lower than the voltage stabilizing value of D8, no current provides the BG2 base stage needed amplified current by the voltage of D8 and R10, none tentering value of C4 two ends, and BG2 also ends by leading T2, and J1 does not have shunt current and can stablize adhesive and operate as normal.
Claims (1)
1. motor protecter; be by shell; electronic component; composition such as circuit board and binding post; comprise power unit; from latching segment; switch; high pressure power failure system; low pressure power failure system; anti-lightning strike system; the overtemperature prote system; the stuck protection system of one camera; phase failure phase shortage is fallen high pressure order gram protection system; it is characterized in that: D8 in the high pressure power failure system; R10 and C4 form series circuit; positive current is by D8; R10 charges to C4; C4 respectively with R11; be knot and the C5 of BG2; the GK utmost point of T2 is formed the shunt circuit; when powering on, C4 presses when being raised to certain amplitude electric current through R11; the ce knot of BG2 charges to C5; after connecting with the T2AK utmost point, R14 forms the shunt circuit with J1; electric current R14; the AK utmost point of T2 conducting and J1 shunting causes J1 not keep adhesive and discharges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99200457 CN2403161Y (en) | 1999-01-12 | 1999-01-12 | Motor protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99200457 CN2403161Y (en) | 1999-01-12 | 1999-01-12 | Motor protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2403161Y true CN2403161Y (en) | 2000-10-25 |
Family
ID=33996441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99200457 Expired - Fee Related CN2403161Y (en) | 1999-01-12 | 1999-01-12 | Motor protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2403161Y (en) |
-
1999
- 1999-01-12 CN CN 99200457 patent/CN2403161Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |