CN204231041U - A kind of DC motor stator structure and canned pump direct current machine - Google Patents
A kind of DC motor stator structure and canned pump direct current machine Download PDFInfo
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- CN204231041U CN204231041U CN201420718706.7U CN201420718706U CN204231041U CN 204231041 U CN204231041 U CN 204231041U CN 201420718706 U CN201420718706 U CN 201420718706U CN 204231041 U CN204231041 U CN 204231041U
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- stator
- stator core
- push rod
- winding slot
- direct current
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Abstract
The utility model relates to a kind of DC motor stator structure, comprise inner stator core and external stator core, described external stator core is installed around inner stator core and is connected on the excircle of inner stator core stator tooth, winding slot is provided with between adjacent stator tooth, described winding slot two ends are switched on bar and close, adjacent stator tooth is connected conducting by described conducting bar, thus forms closed circuit ring between adjacent stators tooth.Stator structure of the present utility model is made up of inner stator core and external stator core, first gap can be reduced, secondly, the winding slot two ends of inner stator core be switched on bar close, these conducting bars, by adjacent stator tooth electric connection thus at the semienclosed closed circuit ring structure of the periphery of winding slot formation, compared with being unlimited Open architecture, are conducive to the magnetic loss and the electric current that reduce stator with winding slot two ends, thus reach raising efficiency, the object of energy-saving and emission-reduction.The utility model also relates to the canned pump direct current machine adopting said stator structure.The utility model can be applicable to canned pump.
Description
Technical field
The utility model relates to pump and necessary electromotor thereof, particularly a kind of DC motor stator structure and canned pump direct current machine.
Background technology
Energy-saving and emission-reduction have now become China's economic and even World Economics to carry out the primary content of planning brief, and country proposes further severe reduction of discharging policy to high energy consumption.Water pump is that power expends rich and influential family as fluid Transporting equipment, calculate according to universal machine TIA, pump power consumption accounts for about 20% of China's energy output, how to reduce pump power important for energy-saving and emission-reduction implication, particularly change in Chinese agriculture today that non-Process of Urbanization Construction constantly promotes, high-level community and property also get more and more, and energy-efficient water pump has just become fast-selling product.
The most frequently used type of drive of water pump is by motor driven, and the Energy Saving Method of pump is primarily make pump assembly (pump, prime mover) running under peak power with minimum external world input electric energy.Pump energy-conservation relates to energy-conservation, the aspect such as system is energy-conservation of pump self.Common water pump is exactly drive water pump to rotate with common alternating current machine, i.e. so-called power frequency motor (50Hz), can not speed governing, testing pump flow need by valve throttle realize with, so not energy-conservation.Variable frequency pump refers to the water pump driven by direct current variable frequency motor, frequency conversion refers to a frequency conversion process of carrying out motor, by changing the rotating speed of motor to the frequency conversion of motor, thus the adjustment reached technical parameters such as the flow lifts of water pump, play the effect of control, reach energy-conservation object, also have starting current little, the advantage that maintenance workload is little.Now direct current variable frequency motor commercially, all adopt the conventional straight wire winding of monolithic stator core, interior around machine wire winding because meeting, when designing high efficiency electric, stator laminating structure will encounter bottleneck, coiling air gap is relatively all larger, and energy loss cannot drop to the limit, and the stator structure of above-mentioned technique can be the patent document of CN 2773979Y with reference to notification number: integrated rotor/stator.
Utility model content
In order to overcome above-mentioned technical problem, the purpose of this utility model is the DC motor stator structure providing a kind of energy-saving consumption-reducing.
The technical scheme that the utility model adopts is:
A kind of DC motor stator structure, comprise inner stator core and external stator core, described external stator core is installed around inner stator core and is connected on the excircle of inner stator core stator tooth, winding slot is provided with between adjacent stator tooth, described winding slot two ends are switched on bar and close, adjacent stator tooth is connected conducting by described conducting bar, thus forms closed circuit ring between adjacent stators tooth.
As the further improvement of technique scheme, described conducting bar and stator tooth one-body molded.
As the further improvement of technique scheme, be provided with twice winding slot between described adjacent stator tooth, twice winding slot is arranged successively along the axis of inner stator core, shares a conducting bar between adjacent winding slot.
The utility model also discloses a kind of canned pump direct current machine of energy-saving consumption-reducing, and its technical scheme adopted is:
A kind of canned pump direct current machine, comprise motor housing, be provided with pump shaft in described motor housing, described pump shaft periphery is connected with rotor, and described rotor outer periphery, around there being above-mentioned stator structure, is provided with housing between described stator structure and rotor.
As the further improvement of technique scheme, described motor housing is provided with frequency-variable controller, described frequency-variable controller connects described stator structure by variable dc lead-out terminal.
As the further improvement of technique scheme, the rear of described pump shaft is provided with the push rod that can link into an integrated entity with pump shaft or be separated, and described push rod is provided with the operating side making it rotate, and described motor housing is provided with the handle hole leading to operating side.
As the further improvement of technique scheme, the middle part of described pump shaft rear end is provided with blocked hole vertically, and the front end of described push rod is the clamping joint coordinated with blocked hole.
As the further improvement of technique scheme, described push rod has the stroke along pump shaft axial advancement and retrogressing, and when pushrod advances puts in place, clamping joint enters blocked hole, and when push rod retrogressing puts in place, clamping joint is separated with blocked hole.
As the further improvement of technique scheme, the rear of described pump shaft is provided with containing cavity, the rear portion of described push rod is positioned at containing cavity, front portion passes from containing cavity front, the periphery of described push rod is arranged with elastic device, the outer wall of described putting back-end is provided with the alar part of annular, and described elastic device is limited in the containing cavity space that surrounded by alar part, push rod.
The beneficial effects of the utility model are: stator structure of the present utility model is made up of inner stator core and external stator core, first gap can be reduced, secondly, the winding slot two ends of inner stator core be switched on bar close, these conducting bars, by adjacent stator tooth electric connection thus at the semienclosed closed circuit ring structure of the periphery of winding slot formation, compared with being unlimited Open architecture, are conducive to the magnetic loss and the electric current that reduce stator with winding slot two ends, thus reach raising efficiency, the object of energy-saving and emission-reduction.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is further illustrated.
Fig. 1 is the structural representation of inner stator core;
Fig. 2 is the structural representation of external stator core;
Fig. 3 is the assembling schematic diagram of stator structure;
Fig. 4 is the schematic diagram of canned pump direct current machine;
Fig. 5 is the connection diagram of push rod and pump shaft.
Embodiment
DC motor stator structure as shown in Figure 1 to Figure 3, comprises the inner stator core 1 and external stator core 2 be made up of silicon steel sheet.Inner stator core 1 is circumferentially surrounded by six stator tooths 101, is rotor chamber in centre.External stator core 2 is installed around inner stator core 1 and is connected on the excircle of inner stator core stator tooth 101, and inner stator core 1 and external stator core 2 can adopt rivets or bolt the fixed form such as to be connected and to fit together.Winding slot 102 is provided with between stator tooth 101 adjacent in inner stator core 1.Be that open structure is different from winding slot two ends in Traditional DC motor stator, in the present embodiment, winding slot 102 two ends are switched on bar 103 and close, meanwhile, adjacent stator tooth 101 is connected conducting by conducting bar 103, thus forms closed circuit ring between adjacent stators tooth 101.By this closed circuit ring structure, contribute to reducing air gap and improving magnetic field output.
Preferably, conducting bar 103 is one-body molded with stator tooth 101, and both are identical material and share everything during fabrication.
In the present embodiment, twice winding slot 102 is provided with between adjacent stator tooth 101.Twice winding slot 102 is arranged successively along the axis of inner stator core 1, as shown in Figure 1, there is a conducting bar upper end of the winding slot of top, and there is a conducting bar lower end of the winding slot of below, and between twice winding slot, share a conducting bar, thus form upper, middle and lower three place's conducting.
As shown in Figure 4 and Figure 5, also disclose a kind of canned pump direct current machine in embodiment, comprise motor housing 3, pump shaft 4 is provided with in motor housing 3, pump shaft 4 periphery is connected with rotor 5, and rotor 5 outside is wound with the stator structure in an embodiment, is provided with housing 6 between stator structure and rotor 5.Rotor 5 is p-m rotor 5, is made up of neodymium iron boron, and this rotor 5 is provided with 2 pairs of magnetic poles and stator structure matches.During overall package, rotor 5 and pump shaft 4 are fixed, load housing 6 afterwards, after stator structure and drum stand being assembled into one, be arranged on housing 6 periphery.Stator obtain electric after produce the rotating magnetic field of minimum magnetic loss by minimum input power and rotor 5 interacts, produce driving and make rotor 5 do cutting magnetic running fast, be kinetic energy by electric energy conversion, rotor 5 drives pump shaft 4 to rotate.
Preferably, motor housing 3 is provided with control box, installing frequency-variable controller in control box.Frequency-variable controller is made up of input ac power and the high-voltage DC power supply exported through rectification, PWM order circuit, PLC technology loop, and this controller is by variable dc lead-out terminal connecting stator structure.
In the area that the pH of water is higher, canned pump Inner eycle water is after thermal shock, in water, calcium ions and magnesium ions is separated in a large number and precipitates, and after pump uses for a long time, deposit enters in the space between rotor 5 and housing 6 rotor 5 and housing 6 to couple together and causes pump shaft " locking ".In order to overcome the phenomenon of this locking, in the motor of canned pump, also should antilock device being set, following mode specifically can be adopted to realize.
As shown in Figure 5, the rear being positioned at pump shaft 4 is provided with push rod 7, the axis of push rod 7 and both concentrics axially consistent with pump shaft 4.This push rod 7 at least has a service position and a rest position.When it is in service position, link into an integrated entity with pump shaft 4, the operating side 71 now by rotating push rod 7 rear end makes push rod 7 drive pump shaft semi-finals system to rotate; When push rod 7 is in rest position, it is separated with pump shaft 4, and the now rotation of pump shaft 4 and the rotation of push rod 7 are independent of each other.The effect of push rod 7 is to force to rotate the pump shaft 4 be connected with rotor 5 and impeller by external force, thus removes the locking state of rotor 5.Comparatively crucial, the rear end of motor housing 3 is provided with handle hole 31, and the operator of rotation process end 71 can lead to operating side 71 by handle hole 31, makes the more convenient operation removing locking state, and without the need to motor is split.
Preferably, push rod 7 and pump shaft 4 link into an integrated entity by realizing with under type: the middle part of pump shaft 4 rear end is provided with blocked hole 41 vertically, the front end of push rod 7 is the clamping joint 72 coordinated with blocked hole 41, and after clamping joint 72 inserts blocked hole 41, push rod 7 can drive pump shaft 4 to rotate.Concrete, pump shaft 4 rear end face has the blocked hole 41 roughly in pyramid-shaped, and its radial contour diminishes gradually before backward; And the front end of push rod 7 is the pyramid-shaped being slightly less than blocked hole 41, insert the blocked hole 41 of pyramid-shaped in push rod 7 front end after, rely on the engaging between pyramid to make both rotate simultaneously.
Preferably, push rod 7 and pump shaft 4 connection or to be separated be rely on having moved axially of push rod 7.For this reason, push rod 7 is designed to the stroke had along pump shaft 4 axial advancement and retrogressing, when push rod 7 reach puts in place, clamping joint 72 enters blocked hole 41, and when push rod 7 retrogressing puts in place, clamping joint 72 is separated with blocked hole 41.
In order to make push rod 7 move forward and to rotate, operating side 71 is designed to the groove of indent, can mate with screwdriver, can either promote operating side 71 push rod 7 is moved forward with screwdriver, also can push rod 7 be rotated bit rotary screwdriver simultaneously.
Said structure only can drive push rod 7 to move forward, and in view of the operating space in motor is limited, is difficult to drive push rod 7 to retreat by external force and separate from pump shaft 4, needs a return mechanism for this reason.Concrete, the rear of pump shaft 4 is provided with the containing cavity 8 surrounded by sheet material, and these sheet materials are axially fixed pump shaft 4, and the rear portion of push rod 7 is positioned at containing cavity 8, and front portion passes from containing cavity 8 front.The periphery of push rod 7 is arranged with spring 81, and the outer wall of push rod 7 rear end is provided with the alar part 73 of annular, and spring 81 is limited in containing cavity 8 space that surrounded by alar part 73, push rod 7.The two ends of spring 81 both can be fixing, also can be movable, as long as ensure that having enough elastic-restoring forces after external force is cancelled makes push rod 7 exit the blocked hole 41 of pump shaft 4 backward.
The above be the utility model preferred embodiment, it does not form the restriction to the utility model protection range.
Claims (9)
1. a DC motor stator structure, it is characterized in that: comprise inner stator core and external stator core, described external stator core is installed around inner stator core and is connected on the excircle of inner stator core stator tooth, winding slot is provided with between adjacent stator tooth, described winding slot is switched on bar and closes, adjacent stator tooth is connected conducting by described conducting bar, thus forms closed circuit ring between adjacent stators tooth.
2. DC motor stator structure according to claim 1, is characterized in that: described conducting bar and stator tooth one-body molded.
3. DC motor stator structure according to claim 1 and 2, is characterized in that: be provided with twice winding slot between described adjacent stator tooth, and twice winding slot is arranged successively along the axis of inner stator core, shares a conducting bar between adjacent winding slot.
4. a canned pump direct current machine, comprise motor housing, be provided with pump shaft in described motor housing, described pump shaft periphery is connected with rotor, it is characterized in that: described rotor outer periphery, around the stator structure of having the right according to any one of requirement 1 to 3, is provided with housing between described stator structure and rotor.
5. canned pump direct current machine according to claim 4, it is characterized in that: described motor housing is provided with frequency-variable controller, described frequency-variable controller connects described stator structure by variable dc lead-out terminal.
6. the canned pump direct current machine according to claim 4 or 5, it is characterized in that: the rear of described pump shaft is provided with the push rod that can link into an integrated entity with pump shaft or be separated, described push rod is provided with the operating side making it rotate, and described motor housing is provided with the handle hole leading to operating side.
7. canned pump direct current machine according to claim 6, is characterized in that: the middle part of described pump shaft rear end is provided with blocked hole vertically, and the front end of described push rod is the clamping joint coordinated with blocked hole.
8. canned pump direct current machine according to claim 7, is characterized in that: described push rod has the stroke along pump shaft axial advancement and retrogressing, and when pushrod advances puts in place, clamping joint enters blocked hole, and when push rod retrogressing puts in place, clamping joint is separated with blocked hole.
9. canned pump direct current machine according to claim 8, it is characterized in that: the rear of described pump shaft is provided with containing cavity, the rear portion of described push rod is positioned at containing cavity, front portion passes from containing cavity front, the periphery of described push rod is arranged with elastic device, the outer wall of described putting back-end is provided with the alar part of annular, and described elastic device is limited in the containing cavity space that surrounded by alar part, push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420718706.7U CN204231041U (en) | 2014-11-26 | 2014-11-26 | A kind of DC motor stator structure and canned pump direct current machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420718706.7U CN204231041U (en) | 2014-11-26 | 2014-11-26 | A kind of DC motor stator structure and canned pump direct current machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204231041U true CN204231041U (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420718706.7U Expired - Fee Related CN204231041U (en) | 2014-11-26 | 2014-11-26 | A kind of DC motor stator structure and canned pump direct current machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204231041U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106911201A (en) * | 2016-08-30 | 2017-06-30 | 合肥新沪屏蔽泵有限公司 | One kind shielding pump stator |
-
2014
- 2014-11-26 CN CN201420718706.7U patent/CN204231041U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106911201A (en) * | 2016-08-30 | 2017-06-30 | 合肥新沪屏蔽泵有限公司 | One kind shielding pump stator |
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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 |
Granted publication date: 20150325 Termination date: 20201126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |