CN207706017U - A kind of one-way capacitor operated motor and the deep kitchen ventilator with it - Google Patents

Abstract

A kind of one-way capacitor operated motor of the utility model and the deep kitchen ventilator with it, motor includes stator core and rotor core, when the outer diameter of stator core is 112~120mm, the internal diameter of stator core is 72~78mm, this is more much bigger than the internal diameter size of existing stator core, this not only makes motor effective dimensions increase, make full use of material, and under same electromagnetic load, the winding copper consumption of stator core is reduced, and can save copper product；In addition, the internal diameter increase of stator core enables to the outer diameter of rotor core to increase therewith, so that the heat dissipation area of rotor core increases, and then the Wen Sheng of motor can be effectively reduced；By making the line footpath φ of main phase winding be 0.29~0.46mm, as 0.8 ＜ Ka ＜ 1 of the ratio between the number of turns of secondary phase winding and the number of turns of main phase winding, the capacitance in motor is 5~8 microfarads so that the operation noise of motor effectively reduces.Deep kitchen ventilator with above-mentioned motor has the characteristics that low noise and with long service life.

Description

A kind of one-way capacitor operated motor and the deep kitchen ventilator with it

Technical field

The utility model is related to monophase machine technical fields, and in particular to a kind of one-way capacitor operated motor and with its Deep kitchen ventilator.

Background technology

Currently, usually used deep kitchen ventilator is mostly single-cylinder type, it is contemplated that use environment needs oil-stain-preventing to corrode and protect Card has excellent wind pressure index, is generally driven using the totally-enclosed single-phase capacitor-operated motor of quadrupole, the output power of the motor It is 35~45 watts, the outer diameter of the stator punching of the motor is 112~120mm, and the internal diameter of the stator punching of motor is not more than 70mm, This allows for that winding copper consumption is more, and the small volume of rotor, and heat dissipation area is not big enough, then due to the tapping of motor Speed governing usually has 2~3 grades of rotating speeds, and high-grade rated speed generally turns left the right side 700 so that the motor slippage is small, wherein slippage It refer to the difference of stator rotating excitation field rotating speed and rotor speed.Slippage is small will to cause loss of electric machine fever serious, and due to rotor dispersing It is exceeded that hot area does not cause temperature to rise very much.In addition, the motor be in range hood ventilation operation when lower-speed state when noise also compare It is larger.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, a kind of good heat dissipation, low noise, at low cost is provided One-way capacitor operated motor and deep kitchen ventilator with it.

A kind of one-way capacitor operated motor of the utility model, technical solution are：

Including stator core and rotor core, the outer diameter of stator core is 112~120mm, and the internal diameter of stator core is 72 ~78mm, the inner ring surface of stator core are equipped with the stator groove of indent, and the outer ring surface of rotor core is equipped with the rotor recesses of indent, Main phase winding and secondary phase winding are wound in stator groove, the line footpath φ of main phase winding is 0.29~0.46mm, when secondary phase winding When 0.8 ＜ Ka ＜ 1 of the ratio between the number of turns and the number of turns of main phase winding, the capacitance in motor is 5~8 microfarads.

Wherein, the tapping for adjusting motor speed is equipped in main phase winding.

Wherein, tapping includes middle-grade tapping and low-grade tapping, and middle-grade tapping and low-grade winding are taken out The line footpath φ of head is 0.21~0.23mm.

Wherein, the number of turns of middle-grade tapping is identical as low-grade the number of turns of tapping, and the number of turns of middle-grade tapping It is 0.2 with the ratio between the number of turns of main phase winding.

Wherein, the number of effective conductors of main phase winding are 3000~4000 circles.

Wherein, the groove depth of stator groove is H, and the slot upper width of stator groove is B1, the slot lower width of stator groove It is 1.4~1.8 for B2, the ratio between the groove depth of stator groove and slot mean breadth 2H/ (B1+B2)；The slot upper width of rotor recesses The slot lower width b2 of b1≤rotor recesses.

Wherein, the groove depth of rotor recesses is h, and the ratio between the groove depths of rotor recesses and slot mean breadth 2H/ (B1+ B2) is not small In 2.25.

Wherein, stator core length is 30~40mm, and the ratio between stator core length and stator core internal diameter are λ, 0.42 ＜ λ ＜ 0.51.

Wherein, the quantity of stator groove is 24, and the quantity of rotor recesses is 34.

A kind of deep kitchen ventilator of the utility model, technical solution are：

Its structure includes the one-way capacitor operated motor.

The implementation of the utility model includes following technique effect：

A kind of one-way capacitor operated motor of the utility model, including stator core and rotor core, in stator core In the case that outer diameter is 112~120mm, the internal diameter of the stator core of the utility model is 72~78mm, this is than existing stator The internal diameter size of iron core is much bigger, this not only makes motor effective dimensions increase, and effective material is fully used, Er Qie Under same electromagnetic load, the copper consumption of main phase winding and secondary phase winding is reduced, and not only saves copper product, but also reduce copper loss； In addition, the internal diameter increase of stator core enables to the outer diameter of rotor core to increase therewith, so that the heat dissipation of rotor core Area increases, and then can effectively reduce the Wen Sheng of motor；It is 0.29~0.46mm by making the line footpath φ of main phase winding, when secondary phase When 0.8 ＜ Ka ＜ 1 of the ratio between the number of turns of winding and the number of turns of main phase winding, the capacitance in motor is 5~8 microfarads so that motor Operation noise effectively reduces.

The deep kitchen ventilator of the utility model can effectively reduce oil with above-mentioned one-way capacitor operated motor The noise of smoke machine, and improve the service life of kitchen ventilator.

Description of the drawings

Fig. 1 is the structural schematic diagram of the stator core of the utility model.

Fig. 2 is the elementary diagram of the tapping in the main phase winding of the utility model.

Fig. 3 is the structural schematic diagram of the rotor recesses of the utility model.

It is marked in attached drawing：

10- stator grooves.

Specific implementation mode

The utility model is described in detail below in conjunction with embodiment and attached drawing, it should be pointed out that described Embodiment be intended merely to facilitate the understanding to the utility model, and do not play any restriction effect to it.

Shown in Figure 1, a kind of one-way capacitor operated motor provided in this embodiment, the motor is that quadrupole is totally-enclosed single-phase Capacitor-operated motor.The motor includes stator core and rotor core, and the outer diameter of stator core is 112~120mm, it is preferred that The outer diameter of stator core is 120mm.The internal diameter of stator core is 72~78mm, and stator core length is 30~40mm, preferably , the internal diameter of stator core is 75mm, and stator core length is 30mm.The ratio between stator core length and stator core internal diameter are λ, 0.42 ＜ λ ＜ 0.51, it is preferred that λ=0.4.Motor in the present embodiment, output power is 50~90 watts, in stator core Outer diameter be 112~120mm in the case of, the internal diameter of the stator core of the utility model is 72~78mm, this is more fixed than existing The internal diameter size of sub- iron core is much bigger, this not only makes motor effective dimensions increase, and effective material is fully used, and Under same electromagnetic load, the copper consumption of main phase winding and secondary phase winding is reduced, and not only saves copper product, but also reduce copper loss Consumption；In addition, the internal diameter increase of stator core enables to the outer diameter of rotor core to increase therewith, so that rotor core dissipates Hot area increases, and then can effectively reduce the Wen Sheng of motor.

Shown in referring to Fig. 1 and Fig. 2, the inner ring surface of stator core is equipped with the stator groove 10 of indent, the outer shroud of rotor core Face is equipped with the rotor recesses of indent.The quantity of stator groove 10 is 24, and the quantity of rotor recesses is 34.In stator groove 10 The line footpath φ for being wound with main phase winding A and secondary phase winding B, main phase winding A is 0.29~0.46mm, the active conductor of main phase winding A Number is 3000~4000 circles, as 0.8 ＜ Ka ＜ 1 of the ratio between the number of turns of secondary phase winding B and the number of turns of main phase winding A, in motor Capacitance C is 5~8 microfarads.Preferably, it is preferred that the line footpath φ of main phase winding A is 0.40mm, the A number of effective conductors of main phase winding It is 1556, as the ratio between the number of turns of secondary phase winding B and the number of turns of main phase winding A Ka=0.91, the capacitance C in motor is 6.7 micro- Method.Due to due to secondary phase winding B, the number of turns of main phase winding A and the apolegamy of capacitance C it is very suitable so that the operation noise of motor has Effect reduces.

It is shown in Figure 2, the tapping for adjusting motor speed is equipped in main phase winding A.Tapping includes height Shelves tapping 1, middle-grade tapping 2 and low-grade tapping 3 (in fig. 2,1 wherein on main phase winding A represents top grade around Group tap, 2 represent middle-grade tapping, and 3 represent low-grade tapping).Secondary phase winding B meets capacitance C.2 He of middle-grade tapping The line footpath φ of low-grade tapping 3 is 0.21~0.23mm, it is preferred that line footpath φ is 0.23mm.Middle-grade tapping 2 The number of turns it is identical as the number of turns of low-grade tapping 3, wherein the ratio between the number of turns of the number of turns and main phase winding A of middle-grade tapping 2 It is 0.2.

Shown in Figure 1, the groove depth of stator groove 10 is H, and the slot upper width of stator groove 10 is B1, stator groove 10 Slot lower width be B2, the ratio between the groove depth of stator groove 10 and slot mean breadth 2H/ (B1+B2) be 1.4.Referring to Fig. 3 institutes Show, the groove depth of rotor recesses is h, the slot lower width b2 of slot upper width b1≤rotor recesses of rotor recesses.Further, The ratio between the groove depth of rotor recesses and slot mean breadth 2h/ (b1+b2) are not less than 2.25, it is preferred that 2h/ (b1+b2) is 3.5.By Increase with the increase of the internal diameter of stator core in rotor core, therefore it is recessed usually can to set the deeper rotor of groove depth in rotor core Slot, further to improve the starting performance of motor and improve the stall rotating speed (i.e. rotating speed under light load) of air outlet.

Motor in the present embodiment uses above-mentioned parameter, the temperature of motor to be upgraded to 72 DEG C, 15% is had dropped than existing Wen Sheng, Copper consumption is 480 grams, reduces about 30% than existing copper consumption.Using the deep kitchen ventilator of the motor of the utility model, It has the characteristics that low noise and with long service life, even if can be substantially reduced if its noise when motor low speed is run.

Finally it should be noted that above example is only to illustrate the technical solution of the utility model, rather than to this reality With the limitation of novel protected range, although being explained in detail to the utility model with reference to preferred embodiment, this field it is general Lead to it will be appreciated by the skilled person that can be modified or replaced equivalently to the technical solution of the utility model, without departing from this The spirit and scope of utility model technical solution.

Claims (10)

1. the outer diameter of a kind of one-way capacitor operated motor, including stator core and rotor core, stator core is 112~120mm, It is characterized in that：The internal diameter of stator core is 72~78mm, and the inner ring surface of stator core is equipped with the stator groove of indent, rotor iron The outer ring surface of core is equipped with the rotor recesses of indent, and main phase winding and secondary phase winding, the line footpath of main phase winding are wound in stator groove φ is 0.29~0.46mm, as 0.8 ＜ Ka ＜ 1 of the ratio between the number of turns of secondary phase winding and the number of turns of main phase winding, the electricity in motor It is 5~8 microfarads to hold.

2. a kind of one-way capacitor operated motor according to claim 1, it is characterised in that：It is equipped in main phase winding for adjusting The tapping of whole motor speed.

3. a kind of one-way capacitor operated motor according to claim 2, it is characterised in that：Tapping includes middle-grade winding The line footpath φ of tap and low-grade tapping, middle-grade tapping and low-grade tapping is 0.21~0.23mm.

4. a kind of one-way capacitor operated motor according to claim 3, it is characterised in that：The number of turns of middle-grade tapping with The number of turns of low-grade tapping is identical, and the ratio between the number of turns of middle-grade tapping and the number of turns of main phase winding are 0.2.

5. according to a kind of one-way capacitor operated motor of claim 1-4 any one of them, it is characterised in that：Main phase winding has Effect conductor number is 3000~4000 circles.

6. according to a kind of one-way capacitor operated motor of claim 1-4 any one of them, it is characterised in that：The slot of stator groove Depth is H, and the slot upper width of stator groove is B1, and the slot lower width of stator groove is B2, and the groove depth and slot of stator groove are flat The ratio between equal width 2H/ (B1+B2) is 1.4~1.8；The slot lower width of slot upper width b1≤rotor recesses of rotor recesses b2。

7. a kind of one-way capacitor operated motor according to claim 6, it is characterised in that：The groove depth of rotor recesses is h, is turned The ratio between the groove depth of sub- groove and slot mean breadth 2H/ (B1+B2) are not less than 2.25.

8. according to a kind of one-way capacitor operated motor of claim 1-4 any one of them, it is characterised in that：Stator core length For 30~40mm, the ratio between stator core length and stator core internal diameter are λ, 0.42 ＜ λ ＜ 0.51.

9. according to a kind of one-way capacitor operated motor of claim 1-4 any one of them, it is characterised in that：The number of stator groove Amount is 24, and the quantity of rotor recesses is 34.

10. deep kitchen ventilator, it is characterised in that：Including claim 1-9 any one of them one-way capacitor operated motors.