CN202696388U

CN202696388U - Motor with PPTC (Polymeric Positive Temperature Coefficient) protector

Info

Publication number: CN202696388U
Application number: CN201220376511XU
Authority: CN
Inventors: 陈校伟
Original assignee: XIAMEN XINZHONGDA TECHNOLOGY CO LTD
Current assignee: XIAMEN XINZHONGDA TECHNOLOGY CO LTD
Priority date: 2012-07-30
Filing date: 2012-07-30
Publication date: 2013-01-23
Anticipated expiration: 2022-07-30

Abstract

The utility model relates to a motor with a PPTC (Polymeric Positive Temperature Coefficient) protector. The motor comprises a stator assembly and a rotor assembly, wherein the stator assembly comprises a shell, two serially-connected coils and a PPTC protector; and the coils, rotors of the rotor assembly, the PPTC protector and the coils are connected in sequence and in series, and the two coils are respectively connected with lead wires. The motor disclosed by the utility model has the beneficial effects that the motor normally runs when working normally, and the motor can be rapidly protected and is not easy to damage when working abnormally; the stator assembly and the rotor assembly are respectively and independently produced and are convenient to assemble, design, manufacture and apply, reduced in cost and easy to be assembled on a product; and according to the utility model, coils are coiled by enamelled wires, therefore the total volume of the motor is small, and because no frictional surface exists among all the elements, the nose and temperature rise are low.

Description

A kind of motor with the PPTC protector

Technical field

The utility model relates to a kind of motor, more particularly, relates to a kind of motor with the PPTC protector.

Background technology

Miniature series excitation motor configuration is simple, volume is little, lightweight, loss is little, efficient is high, cost is low, safety and be easy to make, assembling and using; Its range of speeds is 3000 ~ 40000RPM, adopts a plurality of taps can obtain wider speed adjustable range at same motor.Household electrical appliance are just needing the motor of this high rotating speed, wide speed regulating range. because induction machine does not reach high rotating speed (being not more than 3000RPM).Dust catcher for example, it needs high rotating speed form negative pressure inside and outside container, to produce suction; Staring torque is large, and when loading moment increased, series-wound motor can be adjusted rotating speed and the electric current of self, to increase the moment of self.

Product in the air-bed air blowing industry field of motors is applicable on home-use air-bed bilayer, individual layer, qi of chong channel ascending adversely ship etc. the product.Motor in this field of prior art originally used the requirement that could satisfy product as 105 ℃ of temperature switches of 17AM, and the motor in this field of prior art originally with stator chip folded thick be that 20mm is thick.

The deficiency of the motor in this field of above-mentioned prior art is: the cost of raw material is high, and energy loss is large, and is unfavorable for protecting the life-span of motor.

Chinese utility model patent ZL201120327708.X discloses a kind of D.C. series motor, comprises rotor assembly and field frame assembly, and rotor assembly has the armature that is formed by at least two silicon steel plate stackings, and armature surface has skewed slot.Skewed slot and armature central shaft have certain angle of inclination, and this angle of inclination is 0～20 °.The skewed slot of armature surface is arranged in order by the recess of a plurality of silicon steel sheets that laminate, and the silicon steel sheet edge has circumferential at least one recess, has certain angle between the central shaft of the recess that adjacent two silicon steel sheets match, and angle is 0～20 °.

The D.C. series motor of above-mentioned utility model adopts the skewed slot mounting process, makes the motor electromagnetic noise lower, but does not solve the deficiencies in the prior art, the effect that still is not effectively protected of motor, motor.

The utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of cost of raw material low, and energy loss is little, and has the motor with the PPTC protector of the effect of protection motor.

The technical solution of the utility model is as follows:

A kind of motor with the PPTC protector comprises stator module, rotor assembly, and described stator module comprises two coils, the PPTC protector of shell, series connection; The rotor of described coil, rotor assembly, PPTC protector, coil are connected in series successively, two coils respectively also with the lead-in wire be connected.

As preferably, the junction between the rotor of described coil, rotor assembly, PPTC protector, lead-in wire is overlapped respectively insulating case is arranged.

As preferably, the outer wrapping of described insulating case has the insulation capsule.

As preferably, in the described coil silicon steel sheet is housed, be provided with insulation spacer on the silicon steel sheet.

As preferably, described inner surface of outer cover is provided with coil holder, and described coil installs around on coil holder.

As preferably, described coil is that the enamelled wire coiling forms.

The beneficial effects of the utility model are as follows:

Normally move during motor normal operation of the present utility model, guard time is fast during non-normal working, is not easy to damage motor;

Adopt respectively independent production of stator module, rotor assembly, be convenient to assembling design, manufacturing, application, not only can reduce cost, and be easy to be assembled on the product;

Coil of the present utility model is the enamelled wire coiling, so the cumulative volume of motor is little, and each interelement is without attrition surface, and noise and temperature rise are low.

Description of drawings

Fig. 1 is the exploded perspective view of structure of the present utility model;

Fig. 2 is circuit diagram of the present utility model;

Among the figure: the 1st, bracket component, the 2nd, carbon brush component, the 3rd, ring washer, the 4th, rotor assembly, the 5th, rotor coil, the 6th, stator module, the 8th, pump casing cover assembly, the 9th, screw, the 61st, coil, the 62nd, PPTC protector, the 71st, rotor.

Embodiment

Below in conjunction with drawings and Examples the utility model is further described in detail.

A kind of motor with the PPTC protector comprises stator module 6, rotor assembly 4, and described stator module 6 comprises two coils, the PPTC protector of shell, series connection; The rotor 71 of described coil 61, rotor assembly 4, PPTC protector 62, coil 61 are connected in series successively, two coils 61 respectively also with the lead-in wire be connected.

Junction between the rotor of described coil 61, rotor assembly 4, PPTC protector 62, lead-in wire is overlapped respectively insulating case is arranged.The outer wrapping of described insulating case has the insulation capsule.In the described coil 61 silicon steel sheet is housed, is provided with insulation spacer on the silicon steel sheet.

Described inner surface of outer cover is provided with coil holder, and described coil installs around on coil holder.

Described coil 61 forms for the enamelled wire coiling.

PPTC is overcurrent protection macromolecule PPTC thermistor; the advantage such as that these series of products have is safe, can automatically recover, anti-heavy current characteristic is good, recovery time is short and volume is little; PPTC comprises high density polyethylene (HDPE) (HDPE); carbon black (carbon black), magnesium hydroxide (Magnesium hydroxide).By the stator and rotor parameter proportioning to the product copper cash, add the proportioning of PPTC three's material, the ratio that changes to 100:90:130 from normal ratio 120:100:120 is reformulated, just reached above-mentioned change condition, adding that PTC produced from originally sealing is increased to 4 times for 2 times and seals, and has improved the voltage endurance of PPTC itself.

Embodiment

As shown in Figure 1, a kind of micro motor, it includes stator module 6, rotor assembly 4, bracket component 1, two carbon brush components 2,12 ring washers 3, pump casing cover assembly 8, two screws 9.Described stator module 6 is comprised of two coils 61, two coil holders, a silicon steel sheet, a PPTC protector 62, ground connection helical assembly, insulating tape, a power line, two insulation spacers; Rotor assembly 4 is comprised of a rotor 71, a rotor coil 5, a windmill bone, a commutator.

As shown in Figure 2, described stator module 6 is connected (coil winding is on two coil holders) by the series connection of two coils 61, and the rotor 71 of coil 61, rotor assembly 4, PPTC protector 62, coil 61 are connected in series successively, also being connected with lead-in wire respectively of two coils 61.The junction packages with insulating case respectively, is bandaging with insulating tape, and again the coil 61 that the assembles silicon steel sheet of packing into, insulation spacer after putting into silicon steel sheet compresses the coil 61 that assembles; Rotor assembly 4 is worked it out in the bore of stator of packing into by automation equipment, fixedly assembles by bracket component 1.

Above-described embodiment only is that the utility model is described, and is not with the restriction of the present utility model of opposing.So long as according to technical spirit of the present utility model, to above-described embodiment change, modification etc. all will drop in the scope of claim of the present utility model.

Claims

1. the motor with the PPTC protector comprises stator module, rotor assembly, it is characterized in that, described stator module comprises two coils, the PPTC protector of shell, series connection; The rotor of described coil, rotor assembly, PPTC protector, coil are connected in series successively, two coils respectively also with the lead-in wire be connected.

2. the motor with the PPTC protector according to claim 1 is characterized in that, the junction between the rotor of described coil, rotor assembly, PPTC protector, lead-in wire is overlapped respectively insulating case is arranged.

3. the motor with the PPTC protector according to claim 2 is characterized in that, the outer wrapping of described insulating case has the insulation capsule.

4. the motor with the PPTC protector according to claim 3 is characterized in that, in the described coil silicon steel sheet is housed, and is provided with insulation spacer on the silicon steel sheet.

5. the motor with the PPTC protector according to claim 1 is characterized in that, described inner surface of outer cover is provided with coil holder, and described coil installs around on coil holder.

6. the motor with the PPTC protector according to claim 1 is characterized in that, described coil is that the enamelled wire coiling forms.