CN202817712U - Motor waterproof protector - Google Patents
Motor waterproof protector Download PDFInfo
- Publication number
- CN202817712U CN202817712U CN 201220408951 CN201220408951U CN202817712U CN 202817712 U CN202817712 U CN 202817712U CN 201220408951 CN201220408951 CN 201220408951 CN 201220408951 U CN201220408951 U CN 201220408951U CN 202817712 U CN202817712 U CN 202817712U
- Authority
- CN
- China
- Prior art keywords
- motor
- relay
- contactor
- transformer
- switch
- 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
Links
Abstract
Disclosed is a motor waterproof protector, comprising an AC power supply, a combination switch, a thermal relay, a relay, an AC contactor, a starting button, a stopping button, a transformer, an alarm, and a motor. The motor waterproof protector of the utility model can warn and prevent the motor from burnout. The motor waterproof protector of the utility model features simple circuit, less circuit components, and stable performance.
Description
Technical field
The utility model relates to a kind of protector, relates in particular to a kind of motor waterproof protector.
Background technology
At present, the motor that is used for water drawing electric pump usually can cause motor to burn out because of water inlet, can not timely water be extracted out, even can make short circuit because motor burns out, and causes most of electrical appliance to burn out, and is unfavorable for the protection to electrical appliance.
Summary of the invention
The purpose of this utility model provides a kind of motor waterproof protector with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises AC power, unit switch, thermal relay, relay, A.C. contactor, start button, stop button, transformer, alarm and motor, the power input of the described motor described thermal relay of connecting is connected with described AC power after the normal open switch group of A.C. contactor with being connected, the first end of described starting switch respectively with the zero line of described AC power be connected the first end of a resistance of transformer and be connected, the second end of described start button respectively with the first end of described stop button be connected the first end of normal open switch of A.C. contactor and be connected, the second end of described stop button respectively with the first end of the normally closed switch of described thermal relay be connected the first end of normally closed switch of relay and be connected, the second end of the normal open switch of described A.C. contactor is connected with the second end of the normally closed switch of described relay, the second end of the normally closed switch of described thermal relay is connected with the first end of described A.C. contactor, the second end of described A.C. contactor respectively with the neutral line be connected second end of a winding of transformer and be connected, the first end of the secondary winding of described transformer respectively with the first end of described relay be connected the first end of alarm and be connected, the second end of described relay respectively with the second end of described alarm be connected motor and be connected, the second end of the secondary winding of described transformer is connected with the probe of described motor.
The beneficial effects of the utility model are:
The utility model provides a kind of motor protector that can report to the police, prevents that motor from burning out; The utlity model has that circuit is simple, the circuit elements device is less and the advantage of stable performance.
Description of drawings
Fig. 1 is circuit diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model comprises AC power, unit switch QF, thermal relay FR, relay K, A.C. contactor KM, start button SB1, stop button SB2, transformer T/ alarm HA and motor M, the power input of motor M series connection thermal relay FR is connected with A.C. contactor and is connected with AC power behind the normal open switch group KM-2, the first end of starting switch SB1 is connected the first end of a resistance with the zero line of AC power respectively and is connected with transformer T, the second end of start button SB1 is connected the first end of normal open switch KM-1 with the first end of stop button SB2 respectively and is connected with A.C. contactor, the second end of stop button SB2 is connected the first end of normally closed switch K-1 with the first end of the normally closed switch FR-1 of thermal relay respectively and is connected with relay, the second end of the normal open switch KM-1 of A.C. contactor is connected with the second end of the normally closed switch K-1 of relay, the second end of the normally closed switch FR-1 of thermal relay is connected with the first end of A.C. contactor KM, the second end of A.C. contactor KM is connected the second end of a winding with the neutral line respectively and is connected with transformer T, the first end of the secondary winding of transformer T is connected first end with the first end of relay K respectively and is connected with alarm HA, the second end of relay K is connected with motor M with the second end of alarm HA respectively, and the second end of the secondary winding of transformer T is connected with the probe of motor M.
Claims (1)
1. motor waterproof protector; it is characterized in that: comprise AC power; unit switch; thermal relay; relay; A.C. contactor; start button; stop button; transformer; alarm and motor; the power input of the described motor described thermal relay of connecting is connected with described AC power after the normal open switch group of A.C. contactor with being connected; the first end of described starting switch respectively with the zero line of described AC power be connected the first end of a resistance of transformer and be connected; the second end of described start button respectively with the first end of described stop button be connected the first end of normal open switch of A.C. contactor and be connected; the second end of described stop button respectively with the first end of the normally closed switch of described thermal relay be connected the first end of normally closed switch of relay and be connected; the second end of the normal open switch of described A.C. contactor is connected with the second end of the normally closed switch of described relay; the second end of the normally closed switch of described thermal relay is connected with the first end of described A.C. contactor; the second end of described A.C. contactor respectively with the neutral line be connected second end of a winding of transformer and be connected; the first end of the secondary winding of described transformer respectively with the first end of described relay be connected the first end of alarm and be connected; the second end of described relay respectively with the second end of described alarm be connected motor and be connected, the second end of the secondary winding of described transformer is connected with the probe of described motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220408951 CN202817712U (en) | 2012-08-17 | 2012-08-17 | Motor waterproof protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220408951 CN202817712U (en) | 2012-08-17 | 2012-08-17 | Motor waterproof protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202817712U true CN202817712U (en) | 2013-03-20 |
Family
ID=47876526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220408951 Expired - Fee Related CN202817712U (en) | 2012-08-17 | 2012-08-17 | Motor waterproof protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202817712U (en) |
-
2012
- 2012-08-17 CN CN 201220408951 patent/CN202817712U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20130817 |