CN205141635U - Motor overheat protects warning circuit - Google Patents

Motor overheat protects warning circuit Download PDF

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Publication number
CN205141635U
CN205141635U CN201520833388.3U CN201520833388U CN205141635U CN 205141635 U CN205141635 U CN 205141635U CN 201520833388 U CN201520833388 U CN 201520833388U CN 205141635 U CN205141635 U CN 205141635U
Authority
CN
China
Prior art keywords
resistance
relay
diode
warning circuit
chip
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
Application number
CN201520833388.3U
Other languages
Chinese (zh)
Inventor
唐美娜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Chuangxinyi Technology Co Ltd
Original Assignee
Tianjin Chuangxinyi Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin Chuangxinyi Technology Co Ltd filed Critical Tianjin Chuangxinyi Technology Co Ltd
Priority to CN201520833388.3U priority Critical patent/CN205141635U/en
Application granted granted Critical
Publication of CN205141635U publication Critical patent/CN205141635U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a motor overheat protects warning circuit, including resistance R1, relay J, diode D1 and chip IC1, diode D1's negative pole, relay J, relay J's contact J -1 and power VCC are connected to resistance R1's one end, and potentiometre RP1's stiff end and chip IC1's pin 2 are connected to resistance R1's the other end. The utility model discloses motor overheat protects warning circuit simple structure, components and parts are few, use thermistor to combine voltage detector to constitute thermodetector, through control triode and the on -off control fan of relay and emitting diode's break -make, reduce the motor temperature on the one hand, and on the other hand sends and instructs alarm signal, therefore have that the cost of manufacture is hanged down, the function is various and convenient to use's advantage.

Description

A kind of motor overheating protection warning circuit
Technical field
The utility model relates to a kind of protection warning circuit, specifically a kind of motor overheating protection warning circuit.
Background technology
Motor is due to function-stable; easy to use; the advantage such as with low cost is widely used in the dynamical element in industrial production and daily life; but many machine operation operationally all can occur dispelling the heat not smooth and motor internal that is that cause is damaged; especially coiler part; most motor is damaged and is all caused by overheated, therefore, provides corresponding safeguard measure to be conducive to increasing the life-span of motor.
Utility model content
The purpose of this utility model is the motor overheating protection warning circuit providing a kind of structure simple, easy to use, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of motor overheating protection warning circuit, comprise resistance R1, relay J, diode D1 and chip IC 1, one end of described resistance R1 connects the negative electrode of diode D1, relay J, the contact J-1 of relay J and power supply VCC, the other end of resistance R1 connects a stiff end of potentiometer RP1 and the pin 2 of chip IC 1, the pin 1 contact resistance R2 of chip IC 1, the base stage of the other end connecting triode V1 of resistance R2, the collector electrode of triode V1 connects anode and the relay J of diode D1, another stiff end of potentiometer RP1 connects the sliding end of potentiometer RP1, the negative electrode of diode D2, triode V1 emitter, the pin 3 also ground connection of blower fan M and chip IC 1, the other end contact resistance R3 of the contact J-1 of relay J and the other end of blower fan M, the other end of resistance R3 connects the anode of diode D2.
As preferred version of the present utility model: the model of described IC1 is AN051A.
As preferred version of the present utility model: described resistance R1 is negative tempperature coefficient thermistor.
Compared with prior art; the beneficial effects of the utility model are: the utility model motor overheating protection warning circuit structure is simple, components and parts are few; use thermistor in conjunction with voltage detector composition Temperature Detector; the break-make of blower fan and light-emitting diode is controlled by the break-make controlling triode and relay; reduce motor temperature on the one hand; on the other hand send indication warning signal, therefore have that cost of manufacture is low, diverse in function and advantage easy to use.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of motor overheating protection warning circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of motor overheating protection warning circuit, comprise resistance R1, relay J, diode D1 and chip IC 1, one end of described resistance R1 connects the negative electrode of diode D1, relay J, the contact J-1 of relay J and power supply VCC, the other end of resistance R1 connects a stiff end of potentiometer RP1 and the pin 2 of chip IC 1, the pin 1 contact resistance R2 of chip IC 1, the base stage of the other end connecting triode V1 of resistance R2, the collector electrode of triode V1 connects anode and the relay J of diode D1, another stiff end of potentiometer RP1 connects the sliding end of potentiometer RP1, the negative electrode of diode D2, triode V1 emitter, the pin 3 also ground connection of blower fan M and chip IC 1, the other end contact resistance R3 of the contact J-1 of relay J and the other end of blower fan M, the other end of resistance R3 connects the anode of diode D2.
The model of IC1 is AN051A.Diode D1 is red light-emitting diode.
Operation principle of the present utility model is: switch on power, when temperature is lower, the resistance of thermistor R1 is larger, after it and potentiometer RP1 dividing potential drop, make the reference voltage of 2 pin voltages lower than its inside of chip IC 1, at this moment 1 pin output low level of chip IC 1, triode V is ended, the not adhesive of relay J dead electricity, M power-off stall.When temperature raises, the resistance of R1 reduces, and reaches set point once temperature rise, 2 pin voltages of chip IC 1 will reach inner reference voltage, and its 1 pin is high level by former low transition, makes triode V1 conducting, relay J obtains electric adhesive, and M is energized running, and light-emitting diode D2 lights simultaneously.After a period of time, temperature declines, and the resistance of R1 increases, and causes the 2 pin voltages of IC1 to reduce, and 1 pin is then low level by high level saltus step, and V1 end, and J dead electricity discharges M power-off stall, and the after this operation of circuit to circulate the above-mentioned course of work with gradient of temperature.

Claims (4)

1. a motor overheating protection warning circuit, comprise resistance R1, relay J, diode D1 and chip IC 1, it is characterized in that, one end of described resistance R1 connects the negative electrode of diode D1, relay J, the contact J-1 of relay J and power supply VCC, the other end of resistance R1 connects a stiff end of potentiometer RP1 and the pin 2 of chip IC 1, the pin 1 contact resistance R2 of chip IC 1, the base stage of the other end connecting triode V1 of resistance R2, the collector electrode of triode V1 connects anode and the relay J of diode D1, another stiff end of potentiometer RP1 connects the sliding end of potentiometer RP1, the negative electrode of diode D2, triode V1 emitter, the pin 3 also ground connection of blower fan M and chip IC 1, the other end contact resistance R3 of the contact J-1 of relay J and the other end of blower fan M, the other end of resistance R3 connects the anode of diode D2.
2. a kind of motor overheating protection warning circuit according to claim 1, it is characterized in that, the model of described IC1 is AN051A.
3. a kind of motor overheating protection warning circuit according to claim 1, it is characterized in that, described resistance R1 is negative tempperature coefficient thermistor.
4. a kind of motor overheating protection warning circuit according to claim 1, it is characterized in that, described diode D1 is red light-emitting diode.
CN201520833388.3U 2015-10-26 2015-10-26 Motor overheat protects warning circuit Expired - Fee Related CN205141635U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520833388.3U CN205141635U (en) 2015-10-26 2015-10-26 Motor overheat protects warning circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520833388.3U CN205141635U (en) 2015-10-26 2015-10-26 Motor overheat protects warning circuit

Publications (1)

Publication Number Publication Date
CN205141635U true CN205141635U (en) 2016-04-06

Family

ID=55627389

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520833388.3U Expired - Fee Related CN205141635U (en) 2015-10-26 2015-10-26 Motor overheat protects warning circuit

Country Status (1)

Country Link
CN (1) CN205141635U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107957302A (en) * 2016-10-17 2018-04-24 国网辽宁省电力有限公司阜新供电公司 A kind of temperature control warning circuit based on temperature-sensitive technology
CN110289596A (en) * 2019-06-14 2019-09-27 贵州航天林泉电机有限公司 A kind of three-phase alternating-current motor protection circuit
CN112099547A (en) * 2020-08-13 2020-12-18 四川虹美智能科技有限公司 Power supply protection device and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107957302A (en) * 2016-10-17 2018-04-24 国网辽宁省电力有限公司阜新供电公司 A kind of temperature control warning circuit based on temperature-sensitive technology
CN110289596A (en) * 2019-06-14 2019-09-27 贵州航天林泉电机有限公司 A kind of three-phase alternating-current motor protection circuit
CN110289596B (en) * 2019-06-14 2021-06-18 贵州航天林泉电机有限公司 Three-phase alternating current motor protection circuit
CN112099547A (en) * 2020-08-13 2020-12-18 四川虹美智能科技有限公司 Power supply protection device and method

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160406

Termination date: 20161026