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CN201126958Y - Motor temperature, current protective circuit, protector as well as stirring machine with protector - Google Patents

Motor temperature, current protective circuit, protector as well as stirring machine with protector Download PDF

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Publication number
CN201126958Y
CN201126958Y CNU200720171424XU CN200720171424U CN201126958Y CN 201126958 Y CN201126958 Y CN 201126958Y CN U200720171424X U CNU200720171424X U CN U200720171424XU CN 200720171424 U CN200720171424 U CN 200720171424U CN 201126958 Y CN201126958 Y CN 201126958Y
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CN
China
Prior art keywords
shell
base plate
thermistor
electrically connected
motor
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
CNU200720171424XU
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Chinese (zh)
Inventor
杨长山
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.)
SHENDAYU ELECTRICAL APPARATUS(SHENZHEN) CO Ltd
Shen Daewood Electric (Shenzhen) Co Ltd
Original Assignee
SHENDAYU ELECTRICAL APPARATUS(SHENZHEN) CO Ltd
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Publication date
Application filed by SHENDAYU ELECTRICAL APPARATUS(SHENZHEN) CO Ltd filed Critical SHENDAYU ELECTRICAL APPARATUS(SHENZHEN) CO Ltd
Priority to CNU200720171424XU priority Critical patent/CN201126958Y/en
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Publication of CN201126958Y publication Critical patent/CN201126958Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A motor temperature, current protective circuit comprise a double metal sheets switch which is serially connected to the power source in a control loop. The two end of the double metal sheets switch is collaterally connected to a thermosensitive resistance; a metal substrate (10) and a metal shell (20) with a groove (22) are formed as a cavity which are insulated by the insulating paper (30); the cavity is arranged with the double metal sheets switch (40) inside; one end is electrically connected to the shell; another end is a mobile contact point (42) which can be electrically connected to the static contact point on the substrate in open and close way; one side of a thermosensitive resistance (5) is electrically connected to the shell; the natural metal shell and the substrate respectively extend a electrically-connected end (21, 11). The circuit and the protector can protect the motor while the protector is overheat or over-current and reposition by re-connecting the power source after cutting the power and being cooled. A blender with the motor protector strengthens the using security.

Description

Motor temperature, current protecting circuit, the mixer of protector and band protector
Technical field
The utility model relates to a kind of motor temperature, current protecting circuit, particularly relates to the motor temperature current protecting circuit of a bimetal release of connecting with power supply, mains switch that is provided with in motor control loop; The utility model also relates to a kind of motor temperature current protector, particularly relates to a kind ofly being provided with bimetal leaf, preventing the protection switch that motor is overheated, overcurrent is impaired; The utility model also relates to a kind of mixer that has described motor temperature, current protector.
Background technology
The various in the market machines that drive by motor; such as the domestic food mixer; as automatic soya-bean-milk making machine; automatic meat mincer; fruit juice mixer; fodder mixing machine; pulverizer; even treadmill or the like; be typically provided with the motor temperature protection switch; promptly in motor control loop with bimetal release of power series; in the course of work of these machines; motor is blocked; blocking or circuit overcurrent and overheated; moving of bimetal release; the fixed contact tripping; make motor cut off the power supply, motor temperature just no longer raises, such motor temperature; current protection switch is used for avoiding motor overheated; overcurrent is impaired.But such protection switch may cause the potential safety hazard to the user; along with motor temperature descends; bimetal release can be closed again; power control loop automatically resets immediately; electric motor starting; if and at this moment the user is just fixing a breakdown or the other reasons staff does not leave near the stirring blade, the resetting suddenly to rotate of motor directly brought serious personal injury to the user.
Summary of the invention
The technical problems to be solved in the utility model provides and a kind ofly prevents that motor bimetal leaf protection switch is overheated, overcurrent disconnect the back automatically reset, reclose power supply after must waiting to lower the temperature by cutting off the electricity supply and could make the motor control loop reset, make the safer protective circuit of user; The present invention a kind of compact conformation also is provided and cleverly, the bimetal leaf protection switch that prevents motor recloses power supply after automatically reseting, must waiting to lower the temperature by cutting off the electricity supply could make the motor control loop reset, make the safer motor temperature of user, current protector; The present invention also provides a kind of mixer that has said motor temperature, current protector, raising safety in utilization.
For addressing the above problem; the utility model provides a kind of motor temperature, current protecting circuit; it is included in a bimetal release of connecting with power supply, mains switch that is provided with in the motor control loop, it is characterized in that, is parallel with thermistor at the two ends of bimetal release.
The utility model also provides a kind of motor temperature, current protector, it is characterized in that, comprises bimetal release and thermistor in parallel; It is provided with a metal base plate and the metal shell with groove, the groove mouth of described base plate and described shell is relative and be buckled into a cavity with shell, insulate with insulating paper between described base plate and the described shell, described cavity is built-in with bimetal release, one end of described bimetal release is electrically connected with described shell, the other end is a moving contact, be fixed with a fixed contact outstanding in described cavity on the described base plate, described fixed contact passes the insulating paper of base plate one side and is corresponding with described moving contact, is electrically connected with fixed contact during described moving contact normality, when the bimetal leaf temperature is higher than set point, then leave fixed contact and disconnect electrical connection; One side of a thermistor is electrically connected with the example of described base plate away from shell, and the opposite side of described thermistor then is electrically connected with a metal clips, and this metal clips also is electrically connected with described shell; Stretch out an electric connecting terminal respectively from described metal shell and base plate.
Described thermistor is a cuboid, and described metal clips middle part is bent into thermistor profile shape adapting, partly surrounds described thermistor, and the outside shell side in two ends is buckled in described shell both sides to bending.
Described every the insulating paper between base plate and shell to the side bending of base plate away from shell, the two ends perk, clamp the both sides of described thermistor.
The outer surface of described shell is recessed to form contact outstanding in cavity to inner surface, the end that described bimetal release is electrically connected with shell is provided with the fixedly iron nail that fixedly is electrically connected with described contact, with bimetal release other end corresponding position, also be recessed to form outstanding in cavity one to inner surface at the outer surface of described shell and be convenient to the projection that bimetal leaf resets.
The outer end of the described electric connecting terminal that stretches out respectively from described metal shell and base plate is respectively equipped with wiring card.
Block live wire in the described wiring card respectively.
Described base plate adopts the cold-reduced sheet of iron nickel zinc alloy; Described shell adopts the deep-draw stretching cold-reduced sheet of iron nickel zinc alloy material; Metal clips adopts stainless steel.
The utility model also provides a kind of mixer, comprise a motor bucket, be provided with motor and power control loop thereof in the described motor bucket, it is characterized in that, comprise in the described control loop by thermistor and be connected in parallel on the bimetal release two ends and the motor temperature that forms, current protector, described motor temperature, current protector is provided with a metal base plate and the metal shell with groove, the groove mouth of described base plate and described shell is relative and be buckled into a cavity with shell, insulate with insulating paper between described base plate and the described shell, described cavity is built-in with bimetal release, one end of described bimetal release is electrically connected with described shell, the other end is a moving contact, be fixed with a fixed contact outstanding in described cavity on the described base plate, described fixed contact passes the insulating paper of base plate one side and is corresponding with described moving contact, is electrically connected with fixed contact during described moving contact normality, when the bimetal leaf temperature is higher than set point, then leave fixed contact and disconnect electrical connection; One side of a thermistor is electrically connected with the side of described base plate away from shell, and another example of described thermistor then is electrically connected with a metal clips, and this metal clips also is electrically connected with described shell; Stretch out an electric connecting terminal respectively from described metal shell and base plate, described motor temperature, current protector are connected in the power control loop with above-mentioned two links.
The motor temperature of described mixer, the thermistor of current protector are cuboid, and described metal clips middle part is bent into thermistor profile shape adapting, partly surrounds described thermistor, and the outside shell side in two ends is buckled in described shell both sides to bending; Described every the insulating paper between base plate and shell to the side bending of base plate away from shell, the two ends perk, clamp the both sides of described thermistor; The outer surface of described shell is recessed to form in cavity outstanding contact to inner surface, and the end that described bimetal release is electrically connected with shell is provided with fixedly iron nail, this fixedly iron nail fixedly be electrically connected with described contact; With bimetal release other end corresponding position, also be recessed to form outstanding in cavity one at the outer surface of described shell and be convenient to the projection that bimetal leaf resets to inner surface.
The beneficial effect of motor temperature protective circuit of the present utility model is: because motor temperature protective circuit of the present utility model is parallel with thermistor at the bimetal release two ends; when having temperature protection; protection to electric current is responsive more, and has realized power-off restoration.Because thermistor resistance is very big; under the motor normal operating condition; electric current flows through from bimetal leaf; and overheated in the circuit (for example; the revolution of mixer is obstructed) or overcurrent; when intensification reaches the capping value; bimetal leaf heated bending degree changes feasible moving; fixed contact separately; at this moment electric current passes through from temperature-sensitive resistance, and it is big that its resistance becomes rapidly, makes in the loop electric current very little; be not enough to drive revolution; and thermistor is near bimetal leaf, and the heating of thermistor causes surface temperature to be higher than the bimetal leaf reset temperature; so bimetal leaf can't reset; the motor rotation that can't automatically reset like this must be cut off the electricity supply, and makes thermistor outage and stop heating; the bimetal leaf cooling; reclose power supply after waiting for a few minutes, at this moment motor just can restart to rotate, and this reduces naturally with regard to the temperature of having been avoided the bimetal leaf protection switch and makes motor automatically reset; can not only protect the safety of motor like this, and improve fail safe the user.
Motor temperature of the present utility model, the metal shell of current protector utilization conduction, metal base plate and metal clips are as conductor, and utilize insulating paper to be base plate and casing insulation, adopt compact, the structure of ingenious easy row is connected in parallel on thermistor at the two ends of bimetal release, form a small and exquisite protector of being convenient to insert motor control circuit, make bimetal release not automatically reset, thereby can't restart automatically behind the overheated overcurrent of motor, must cut off the power supply and wait for that the energising again of lowering the temperature then just can reset, ensure user's safety, and, the adjacent bimetal leaf of thermistor wherein, make the heat of thermistor can pass to bimetal leaf rapidly, reach the protection effect as early as possible; Equally, adopted the blender of said motor temperature, current protector just to have higher fail safe, the mode of realization is very simple, only needs described protector is connected in the power control loop by two electric connecting terminals to get final product.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is motor temperature protective circuit figure of the present utility model.
Fig. 2 is motor temperature of the present utility model, current protector front view.
Fig. 3 is motor temperature of the present utility model, current protector end view.
Fig. 4 is the A-A cutaway view of Fig. 2.
Fig. 5 is the front view of card live wire on motor temperature of the present utility model, the current protector wiring card.
Fig. 6 is the mixer structural representation with motor temperature, current protector of the present utility model.
Fig. 7 is the mixer circuit theory diagrams of Fig. 6.
Embodiment
Motor temperature of the present utility model, current protecting circuit are as shown in Figure 1; the mains switch K that comprise power supply in this circuit, connects, bimetal release 40 with power supply; be parallel with a thermistor PTC at the two ends of bimetal release, these circuit two ends C, D insert other parts of appliance circuit.
Usually, the bimetal release operating temperature is from 65 ℃ to 160 ℃, and reset temperature is from 50 ℃ to 105 ℃; So selected thermistor and bimetal release reset temperature have relation, common selected thermistor gauge surface temperature is greater than 120 ℃.The thermistor gauge surface temperature must for example adopt the thermistor of LKP0EY00009025 model greater than the product reset temperature.The voltage of thermistor has 110VAC and 220VAC, according to the voltage decision of protective circuit.The room temperature resistance of thermistor is normally between 500~6000 Europe.
Motor temperature of the present utility model, current protector such as Fig. 2~shown in Figure 5.The electrical connection of its formation is equivalent to the part shown in the frame of broken lines among Fig. 1.This motor temperature; current protector is provided with a rectangular flat plate shape conducting metal base plate 10 and a conducting metal shell 20; base plate is to be made by the cold-reduced sheet of iron nickel zinc alloy; conduction; good heat conduction effect; and non-corrosive; and shell is made by deep-draw stretching cold-reduced sheet iron nickel zinc alloy material; this metal shell 20 has the groove 22 of notch towards base plate; described base plate 10 is buckled into a cavity with shell 21; insulate with insulating paper 30 between described base plate and the described shell; bimetal release 40 is arranged in the described cavity; the one end is electrically connected with described shell 20; electrical connection in the present embodiment is achieved in that the nearly middle part of described shell 20 outer surfaces is recessed to form a contact 23 outstanding in cavity to inner surface; described bimetal release 40 corresponding ends are welded with the fixedly iron nail 41 of a conduction, and fixedly iron nail and described contact 23 weld together for these.The other end of described bimetal release 40 is moving contacts 42, and conduction fixed contact 12 of giving prominence to described cavity of fixing electrical connection on the described base plate 10, described fixed contact 12 passes the insulating paper 30 of base plate one side and is corresponding with described moving contact 42, is electrically connected with fixed contact 12 during described moving contact 42 normalities then to leave fixed contact and disconnect electrical connection when the bimetal release temperature is higher than set point; Reset for the ease of bimetal release, outer surface at described shell also is recessed to form outstanding in a cavity projection 25 to inner surface, after bimetal leaf sound contact separated, that end of bimetal leaf moving contact withstood on the described projection 25, can not be close to the inner surface of shell.What one side of the thermistor 50 of a cuboid was electrically connected is attached on the base plate 10, be positioned at the side of base plate away from shell 20, and the opposite side of thermistor 50 is provided with the conducting metal shell fragment 60 of a stainless steel material, these metal clips 60 middle parts are bent into the rectangular channel 61 suitable with thermistor 50 profiles, part is surrounded and be close to described thermistor, formation is electrically connected with thermistor, and the two ends 62 outside shell sides of metal clips 60 are buckled in described shell both sides to bending, and realization like this is electrically connected with described shell; Be rectangle every the insulating paper between base plate and shell 30, make with the polyester composite material, has certain rigidity, this insulating paper surrounds bottom parts to base plate 10 outer surface bendings, not besieged and be used to place thermistor in the middle of the base plate, 31 perks of insulating paper two ends are clamped in described thermistor 50 between the two ends of perk, have certain fixation.As Fig. 2, shown in Figure 4, from the electric connecting terminal 21 that extends of described metal shell 20 one, another link 11 that extends from described base plate 10 one does not contact between described two links, is in state of insulation.Be respectively equipped with wiring card 24,14 in the outer end of two links, can not connect wires shown in Fig. 2~4, also can block live wire 70 respectively in the described wiring card 24,14 as shown in Figure 5.
Consult Fig. 6; has the said motor temperature; the mixer of current protector comprises bucket 1; be provided with stirring blade 2 in the bucket; clutch 3; the bucket below is a motor bucket 4; be provided with motor (motor) 5 and power control loop 6 thereof (only being signal among the figure) in the motor bucket; motor shaft 7 one ends are connecting the clutch rotating shaft; the other end is connecting motor output shaft; has a said motor temperature in the described power control loop; the current protector (not shown); role can be consulted shown in the circuit theory diagrams of this mixer of Fig. 7; comprising motor temperature shown in Figure 2; the circuit of current protector; promptly have the bimetal release protective circuit part in parallel with thermistor; when mixer overheated; overcurrent; bimetal leaf is moving; after the fixed contact tripping; thermistor heating makes bimetal leaf to lower the temperature to reset; the motor rotation that can't automatically reset all the time like this; have only when artificial disconnecting power switch and make thermistor outage and stop heating; bimetal leaf cools to and resets behind the wait certain hour; closed again mains switch; at this moment motor just can restart to rotate, and the fail safe that order is used is improved.

Claims (10)

1, a kind of motor temperature, current protecting circuit, it is included in a bimetal release of connecting with power supply, mains switch that is provided with in the motor control loop, it is characterized in that, is parallel with thermistor at the two ends of bimetal release.
2, a kind of motor temperature, current protector is characterized in that, comprise bimetal release and thermistor in parallel; It is provided with a metal base plate (10) and the metal shell (20) with groove (22), the groove mouth of described base plate and described shell is relative and be buckled into a cavity with shell, insulate with insulating paper (30) between described base plate and the described shell, described cavity is built-in with bimetal release (40), one end of described bimetal release is electrically connected with described shell (20), the other end is moving contact (42), be fixed with a fixed contact (12) outstanding in described cavity on the described base plate (10), described fixed contact (12) passes the insulating paper (30) of base plate one side and is corresponding with described moving contact (42), is electrically connected with fixed contact during described moving contact normality, when bimetal leaf (30) then leaves fixed contact when temperature is higher than set point and disconnects electrical connection; One side of a thermistor (50) is electrically connected with the side of described base plate (10) away from shell, and the opposite side of described thermistor then is electrically connected with a metal clips (60), and this metal clips (60) also is electrically connected with described shell (20); Stretch out an electric connecting terminal (21,11) respectively from described metal shell (20) and base plate (10).
3, motor temperature according to claim 2, current protector; it is characterized in that; described thermistor (50) is a cuboid; and described metal clips (60) middle part is bent into thermistor profile shape adapting, partly surrounds described thermistor, and two ends (62) outwards shell side are buckled in described shell both sides to bending.
4, motor temperature according to claim 3, current protector is characterized in that, described every the insulating paper between base plate and shell to the side bending of base plate away from shell, two ends (31) perk, clamp the both sides of described thermistor (50).
5, motor temperature according to claim 2, current protector; it is characterized in that; the outer surface of described shell is recessed to form contact (23) outstanding in cavity to inner surface; the end that described bimetal release is electrically connected with shell is provided with the fixedly iron nail (41) that fixedly is electrically connected with described contact (23), with bimetal release other end corresponding position, also be recessed to form outstanding in cavity one to inner surface at the outer surface of described shell and be convenient to the projection (25) that bimetal leaf resets.
6, motor temperature according to claim 2, current protector is characterized in that, the outer end of the described electric connecting terminal that stretches out respectively from described metal shell and base plate is respectively equipped with wiring card (24,14).
7, motor temperature according to claim 6, current protector is characterized in that, block live wire (70) in the described wiring card respectively.
8, motor temperature according to claim 2, current protector is characterized in that, described base plate (10) adopts the cold-reduced sheet of iron nickel zinc alloy; Described shell adopts the deep-draw stretching cold-reduced sheet of iron nickel zinc alloy material; Metal clips adopts stainless steel.
9, a kind of mixer, comprise a motor bucket, be provided with motor and power control loop thereof in the described motor bucket, it is characterized in that, comprise in the described control loop by thermistor and be connected in parallel on the bimetal release two ends and the motor temperature that forms, current protector, described motor temperature, current protector is provided with a metal base plate (10) and the metal shell (20) with groove (22), the groove mouth of described base plate and described shell is relative and be buckled into a cavity with shell, insulate with insulating paper (30) between described base plate and the described shell, described cavity is built-in with bimetal release (40), one end of described bimetal release is electrically connected with described shell (20), the other end is moving contact (42), be fixed with a fixed contact (12) outstanding in described cavity on the described base plate (10), described fixed contact (12) passes the insulating paper (30) of base plate one side and is corresponding with described moving contact (42), is electrically connected with fixed contact during described moving contact normality, when bimetal leaf (30) then leaves fixed contact when temperature is higher than set point and disconnects electrical connection; One side of a thermistor (50) is electrically connected with the side of described base plate (10) away from shell, and the opposite side of described thermistor then is electrically connected with a metal clips (60), and this metal clips (60) also is electrically connected with described shell (20); Stretch out an electric connecting terminal (21,11) respectively from described metal shell (20) and base plate (10), described motor temperature, current protector are connected in the power control loop with above-mentioned two links.
10, mixer according to claim 9, it is characterized in that, described thermistor (50) is a cuboid, and described metal clips (60) middle part is bent into thermistor profile shape adapting, partly surrounds described thermistor, and two ends (62) outwards shell side are buckled in described shell both sides to bending; Described every the insulating paper between base plate and shell to the side bending of base plate away from shell, two ends (31) perk, clamp the both sides of described thermistor; The outer surface of described shell is recessed to form in cavity outstanding contact (23) to inner surface, and the end that described bimetal release is electrically connected with shell is provided with fixedly iron nail (41), this fixedly iron nail fixedly be electrically connected with described contact (23); With bimetal release other end corresponding position, also be recessed to form outstanding in cavity one at the outer surface of described shell and be convenient to the projection (25) that bimetal leaf resets to inner surface.
CNU200720171424XU 2007-12-07 2007-12-07 Motor temperature, current protective circuit, protector as well as stirring machine with protector Expired - Fee Related CN201126958Y (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI406315B (en) * 2011-01-28 2013-08-21 Lextar Electronics Corp Circuit protection apparatuses and methods for driving the same
CN103346533A (en) * 2013-06-25 2013-10-09 冯锐 Circuit structure with protection function
CN104181831A (en) * 2014-08-19 2014-12-03 深圳市朗特电子有限公司 Control system and control method of food smashing, stirring and mixing equipment
CN102097786B (en) * 2009-12-11 2016-01-27 森萨塔科技(常州)有限公司 Motor protecter
CN106300257A (en) * 2015-05-26 2017-01-04 叶永青 Wire protector based on temperature switch
CN106322428A (en) * 2015-07-10 2017-01-11 关隆股份有限公司 Control method for fuel gas equipment
CN108448825A (en) * 2017-10-20 2018-08-24 台州市双龙泵业有限公司 High-efficiency energy-conserving small-sized three-phase water-pump motor
CN108551220A (en) * 2017-10-20 2018-09-18 台州市双龙泵业有限公司 A kind of energy-efficient water pump stall, overload, phase shortage burn-free motor
CN108879604A (en) * 2018-08-07 2018-11-23 赵云文 Single-phase electrical appliance crosses heat overload protector
CN110247370A (en) * 2018-03-07 2019-09-17 广东美的生活电器制造有限公司 The control method for over-heating protection and device of food processor and its power device
CN111001653A (en) * 2019-12-25 2020-04-14 慈溪威力电机制造有限公司 Control method of garbage processor
CN112234774A (en) * 2020-09-29 2021-01-15 浙江优力仕机电科技股份有限公司 Motor protection system
CN112863794A (en) * 2021-03-24 2021-05-28 上海维安电子有限公司 Temperature-sensitive PTC protector
CN114190794A (en) * 2020-09-18 2022-03-18 广东美的生活电器制造有限公司 Rotating assembly and food processor
CN114365364A (en) * 2019-07-15 2022-04-15 尚科宁家运营有限公司 Appliance with integrated ground fault detection

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102097786B (en) * 2009-12-11 2016-01-27 森萨塔科技(常州)有限公司 Motor protecter
TWI406315B (en) * 2011-01-28 2013-08-21 Lextar Electronics Corp Circuit protection apparatuses and methods for driving the same
CN103346533A (en) * 2013-06-25 2013-10-09 冯锐 Circuit structure with protection function
CN104181831A (en) * 2014-08-19 2014-12-03 深圳市朗特电子有限公司 Control system and control method of food smashing, stirring and mixing equipment
CN106300257A (en) * 2015-05-26 2017-01-04 叶永青 Wire protector based on temperature switch
CN106322428A (en) * 2015-07-10 2017-01-11 关隆股份有限公司 Control method for fuel gas equipment
CN106322428B (en) * 2015-07-10 2019-03-29 关隆股份有限公司 The control method of gas-fired equipment
CN108448825A (en) * 2017-10-20 2018-08-24 台州市双龙泵业有限公司 High-efficiency energy-conserving small-sized three-phase water-pump motor
CN108551220A (en) * 2017-10-20 2018-09-18 台州市双龙泵业有限公司 A kind of energy-efficient water pump stall, overload, phase shortage burn-free motor
CN110247370B (en) * 2018-03-07 2021-07-20 广东美的生活电器制造有限公司 Food processor and overheat protection control method and device of power device of food processor
CN110247370A (en) * 2018-03-07 2019-09-17 广东美的生活电器制造有限公司 The control method for over-heating protection and device of food processor and its power device
CN108879604A (en) * 2018-08-07 2018-11-23 赵云文 Single-phase electrical appliance crosses heat overload protector
CN114365364A (en) * 2019-07-15 2022-04-15 尚科宁家运营有限公司 Appliance with integrated ground fault detection
CN114365364B (en) * 2019-07-15 2024-06-04 尚科宁家运营有限公司 Appliance with integrated ground fault detection
CN111001653A (en) * 2019-12-25 2020-04-14 慈溪威力电机制造有限公司 Control method of garbage processor
CN114190794A (en) * 2020-09-18 2022-03-18 广东美的生活电器制造有限公司 Rotating assembly and food processor
CN112234774A (en) * 2020-09-29 2021-01-15 浙江优力仕机电科技股份有限公司 Motor protection system
CN112234774B (en) * 2020-09-29 2023-06-13 浙江优力仕电驱动科技有限公司 Motor protection system
CN112863794A (en) * 2021-03-24 2021-05-28 上海维安电子有限公司 Temperature-sensitive PTC protector

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