CN203500035U - Actuating mechanism for alternating current and permanent magnet drainage pump - Google Patents
Actuating mechanism for alternating current and permanent magnet drainage pump Download PDFInfo
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- CN203500035U CN203500035U CN201320567067.4U CN201320567067U CN203500035U CN 203500035 U CN203500035 U CN 203500035U CN 201320567067 U CN201320567067 U CN 201320567067U CN 203500035 U CN203500035 U CN 203500035U
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- limit rib
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Abstract
The utility model discloses an actuating mechanism for an alternating current and permanent magnet drainage pump. The actuating mechanism comprises a rotor shaft (91), a magnetic core (92), a starting sleeve (93b) and a shaft sleeve (93a). One end of the rotor shaft is fixed with an impeller. The magnetic core (92) is sleeved on the rotor shaft. The starting sleeve (93b) is sleeved on the rotor shaft and is fixedly connected at one end, away from the impeller, of the magnetic core. The inner wall of the starting sleeve is provided with two starting ribs (93b ', 93b ' '). The shaft sleeve (93a) is fixedly arranged on the rotor shaft and is arranged in the starting sleeve. The outer wall of the shaft sleeve is provided with two spacing ribs (93a ', 93a ' '). A first damping body is arranged between one staring rib and one spacing rib. A second damping body (93c') is arranged between the other staring rib and the other spacing rib. An anti-interference gap is arranged between the starting rib and the spacing rib. The actuating mechanism for the alternating current and permanent magnet drainage pump is simple in structure, good in damping effect and low in operating noise. Additionally, damping bodies are uniform in stress and the damping bodies and all members are long in service lifetime.
Description
Technical field
The utility model relates to draining pump technical field, relates in particular to a kind of starting mechanism of AC permanent-magnet draining pump.
Background technique
At notice of authorization number, be CN202841037U, the Chinese utility model patent that model utility name is called " magnetic core starting mechanism and the draining pump of alternating current permanent magnet synchronous water discharge pump motor " discloses a kind of magnetic core starting mechanism of alternating current permanent magnet synchronous water discharge pump motor, comprise p-m rotor, rotor shaft and rotor axle sleeve, the tubular body outer side wall of axle sleeve protrudes one and starts muscle, the magnetic core of p-m rotor have one can accommodating described axle sleeve receiving cavity, receiving cavity madial wall protrudes a limit rib, start muscle and limit rib and interfere two groups of interference surfaces of formation, in each group interference surface, be installed on a damping elastomer, damping elastomer has towards starting the first cambered surface of muscle and towards the second cambered surface of limit rib, start muscle or limit rib and there is respectively the globoidal structure with the first cambered surface or the second cambered surface with same curvature radius and centre of curvature.This patent has been improved the spatial structure that starts the interference surface between muscle and limit rib, has reduced the beating noise producing when starting between axle sleeve, damping elastomer and fan blade.
But, adopting above-mentioned structure, although start between muscle and limit rib, can directly not contact, owing to starting muscle and the existing interference structure of limit rib, the stress surface of startup muscle and limit rib is less, easily causes the infringement of member.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, a kind of starting mechanism of AC permanent-magnet draining pump is provided, between its startup muscle and limit rib, there is anti-interference gap, make shock reducing structure stress equalization, therefore extend the working life of shock reducing structure and associated components, strengthen damping effect, greatly reduce operational noise.
For realizing above-mentioned purpose of the present utility model, the starting mechanism of a kind of AC permanent-magnet draining pump of the present utility model, comprising: rotor shaft, and its one end is fixed with impeller; Magnetic core, rotation is placed on rotor shaft; Start cover, one end away from impeller of described magnetic core is settled and be fixedly connected with to surrounding rotor axle, starts cover inwall and be provided with two startup muscle; Axle sleeve, is fixedly mounted on described rotor shaft and is placed in described startup cover, and axle sleeve outer wall is provided with two limit ribs; Wherein, two startup muscle are divided into the first and second regions by the inner chamber that starts cover, are mounted with the first shock reducing structure in first area, are mounted with the second shock reducing structure in second area; Start between muscle and limit rib and there is anti-interference gap, so that one of them starts muscle, can turn over a limit rib in two limit ribs, and another startup muscle can turn over another limit rib in two limit ribs.
Wherein, two sidewalls that start muscle have respectively the first indent arc shaped surface, and two sidewalls of described limit rib have respectively the second indent arc shaped surface, and described the first indent arc shaped surface and the second indent arc shaped surface are for coordinating with described the first shock reducing structure and the second shock reducing structure.
Wherein, described the first indent arc shaped surface is identical with the radius of curvature of the second indent arc shaped surface; Wherein, between the first indent arc shaped surface and its corresponding the second indent arc shaped surface, form the non-closed space of accommodating the first shock reducing structure and the second shock reducing structure.
Preferably, described the first shock reducing structure is cylindrical body or the spheroid that structure is identical with described the second shock reducing structure, and its radius is less than the described radius of curvature of described the first indent arc shaped surface.
Preferably, described anti-interference gap is formed between the inwall of described startup muscle and the outer wall of described limit rib.
Preferably, the distance between the tubular body outer wall of described axle sleeve and described startup muscle inwall is less than the diameter of described shock reducing structure, and the distance of startup cover inwall and limit rib outer wall is less than the diameter of shock reducing structure.
Wherein, described two limit ribs are two outwardly portions that are symmetrically set in the tubular body outer wall of described axle sleeve.
Wherein, described two start muscle be symmetrically set in described startup cover inwall and along described startup cover radially to two projecting inward bumps.
Preferably, a part for the described axle sleeve that described two limit ribs are formed in one, a part for described two described startup covers that start muscle and be formed in one.
Preferably, described startup cover is made by nonmagnetic substance.
Further, also comprise the bonnet that is arranged on described axle sleeve one end.
Further, also comprise the seal ring that is placed on described rotor shaft and lays respectively at described axle sleeve two ends.
Compared with prior art, the starting mechanism tool of AC permanent-magnet draining pump of the present utility model has the following advantages:
1) startup cover of the present utility model is made by nonmagnetic substance, reduce production costs, and be mounted with shock reducing structure between the startup muscle in startup cover and the limit rib of axle sleeve, between starting between muscle and limit rib, pass through shock reducing structure carry-over moment, so stress surface is large, starts muscle little to the impact force of limit rib, good damping effect, the operational noise of draining pump is little, makes startup more steady, the long service life of starting mechanism;
2) when magnetic core of the present utility model rotates, owing to starting the structure in anti-interference gap between the startup muscle of cover and the limit rib of axle sleeve, in start-up course, zero load (referring to not to the limit rib carry-over moment) rotational travel that starts muscle has reached more than 220 °, the increase of the trip can make motor when being coupled to impeller, reach higher rotating speed, and the starting torque now producing increases greatly, is conducive to starting mechanism and starts vane rotary, start more steady, rotor assembly long service life;
3) startup cover, axle sleeve and the shock reducing structure of starting mechanism of the present utility model are placed in the one end away from impeller, can make magnetic core near impeller, stator iron core is also just near impeller, optimized the structure of the pump housing: on the one hand, because starting mechanism is not arranged in impeller, not only the length of the blade of impeller can increase, and the area that impeller is clapped water increases, and is also convenient to installation and the manufacture of impeller; On the other hand, because stator iron core is near impeller, make whole pump structure compact.
Below in conjunction with accompanying drawing, the utility model is elaborated.
Accompanying drawing explanation
Fig. 1 is the structural representation that the AC permanent-magnet draining pump of the utility model starting mechanism is housed;
Fig. 2 is the explosive view of the starting mechanism of AC permanent-magnet draining pump of the present utility model;
Fig. 3 is the sectional view after the assembling of starting mechanism shown in Fig. 2;
(a) and (b) in Fig. 4 are that the utility model starts the schematic diagram that overlaps the start-up course that turns clockwise;
(a) and (b) in Fig. 5, (c) overlap the schematic diagram that is rotated counterclockwise start-up course for the utility model starts.
Description of reference numerals: 1-pump cover; 2-impeller; The 4-pump housing; 7-stator coil; 8-stator iron core; 91-rotor shaft; 92-magnetic core; 93a-axle sleeve; 93b-starts cover; 93c the first shock reducing structure, 93c '-the second damping body; 93a ', 93a "-limit rib; 93b ', 93b "-startup muscle; 93d, 93d '-seal ring; 93e-bonnet; 93a ' ' '-platform; A-first area; B-second area.
Embodiment
As shown in Figure 1, AC permanent-magnet draining pump of the present utility model comprises: the pump housing 4; The pump cover 1 being connected with the pump housing 4; Be arranged on the impeller 2 in pump cover 1; Be placed in stator module and starting mechanism within the pump housing 4, wherein stator module has stator coil 7 and stator iron core 8, and starting mechanism is for drives impeller 2 rotations.
Wherein, as shown in Figure 2,3, starting mechanism has magnetic core 92, in the receiving cavity that its indent circular arc part that is placed in stator iron core 8 surrounds.Magnetic core 92 is by rotor shaft 91 sheathed in its center hole, and one end of rotor shaft 91 is fixedly connected with impeller 2, and its other end is placed in by bearing in the bearing support of rotator seat of the pump housing 4.
As shown in Figure 2, start one end away from impeller 2 that cover 93b is fixedly connected on magnetic core 92, it is along with magnetic core 92 rotates; Axle sleeve 93a suit is fixed on rotor shaft 91 and is placed in and starts in cover 93b, and itself and rotor shaft 91 rotate simultaneously.Wherein, start cover 93b inwall and be provided with two startup muscle 93b ', 93b ", axle sleeve 93a outer wall is provided with two limit rib 93a ' 93a " (shown in Fig. 3); The first shock reducing structure 93c is housed starting between muscle 93b ' and limit rib 93a ', at startup muscle 93b " and limit rib 93a " between the second shock reducing structure 93c ' is housed; And, start muscle 93b ' and 93b " end face from the distance in axle center, be greater than limit rib 93a ' and 93a " end face is from the distance in axle center, make, starting between muscle 93b ' and limit rib 93a ', start muscle 93b ' and limit rib 93a " between, startup muscle 93b " and limit rib 93a ' between, startup muscle 93b " and limit rib 93a " between, radially there is certain gap, i.e. anti-interference gap.The effect in this anti-interference gap is, if while not having the first shock reducing structure 93c or the second shock reducing structure to stop, starts muscle 93b ' or 93b " can rotate by limit rib 93a ' or 93a ".
As shown in Figure 4 (a), while starting the startup of cover 93b clockwise direction, starting muscle 93b ' can rotate along clockwise direction, finally by a side of the first shock reducing structure 93c contact limit rib 93a '; And start muscle 93b " also rotate along clockwise direction, finally by the second shock reducing structure 93c ' contact limit rib 93a " a side.Like this, because the resistance of start of startup muscle 93b ' is larger, it can rotate along the counter clockwise direction shown in Fig. 5, and with propeller shaft sleeve, 93a is rotated counterclockwise.Below with reference to Fig. 5 explanation process subsequently.
As the startup of Fig. 5 is overlapped as shown in counterclockwise start-up course, first, start cover 93b and by the position shown in Fig. 4 (b), turned in the counterclockwise direction the position of Fig. 5 (a), then, owing to starting muscle 93b ' and limit rib 93a " between there is anti-interference gap; therefore; startup muscle 93b ' can turn over limit rib 93a in the counterclockwise direction without let or hindrance " (seeing shown in Fig. 5 (b)), and start muscle 93b " with limit rib 93a ' between also have anti-interference gap, so start muscle 93b " also can turn in the counterclockwise direction limit rib 93a '; Finally, start muscle 93b ' by the opposite side of the second shock reducing structure 93c ' contact limit rib 93a ', and start muscle 93b " by the first shock reducing structure 93c contact limit rib 93a " opposite side, arrive the position as shown in Fig. 5 (c).Like this, start cover 93b and just drive axle sleeve 93a to be rotated counterclockwise, thereby drives rotor shaft 91 impeller rotate counterclockwise.
According to the process shown in Fig. 5 (a)-(b), make to start muscle 93b ' and 93b " by the position of Fig. 4 (b), turned to the position of Fig. 5 (c); and rotational travel can reach 220 °, and the starting torque therefore producing increases greatly, is conducive to starting mechanism and starts vane rotary.
In addition, as shown in Figure 2, at magnetic core 92, away from one end of impeller 2, bonnet 93e is installed, between axle sleeve 93a and bonnet 93e, start between cover 93b and axle sleeve 93a and be mounted with respectively seal ring 93d, 93d '.
When stator coil 7 is passed to Ac, the alternating magnetic field that stator coil 7 produces drives magnetic core 92 to rotate by stator iron core 8, starting cover 93b rotates with magnetic core 92, the startup muscle 93b ' that starts cover 93b can contact (as shown in Fig. 5 (c)) by the second shock reducing structure 93c ' with the limit rib 93a ' of axle sleeve 93a, start the startup muscle 93b of cover 93b inwall " limit rib 93a by the first shock reducing structure 93c with axle sleeve 93a " contact (as shown in Fig. 5 (c)), thereby by limit rib 93a ', 93a " propeller shaft sleeve 93a rotation, because axle sleeve 93a is fixedly connected with rotor shaft 91, therefore rotor shaft 91 rotates accordingly, the impeller 2 that drive is fixed on rotor shaft 91 one end rotates, thereby make AC permanent-magnet draining pump realize drain function by impeller.
Concrete, start cover 93b and be take magnetic core 92 as inserts, adopt one end that the method for injection process is fixed on magnetic core 92 by plastic material to form, starting cover 93b has for settling the holding cavity of axle sleeve 93a, at the inwall that starts cover 93b, be arranged with the startup muscle 93b ' that protrudes towards its axis direction, start muscle 93b ", and start muscle 93b ', start muscle 93b " two sidewalls there is respectively the first indent arc shaped surface.
Preferably, limit rib 93a ', 93a " exterior radius be slightly less than start muscle 93b ', 93b " inwall radius, therefore at limit rib 93a ', 93a " outer wall with start muscle 93b ', 93b " inwall between form anti-interference gap, make limit rib 93a ', 93a " with startup muscle 93b ', 93b " can relatively rotate and can not pile up.
As shown in Figure 4 (b), start between the first indent arc shaped surface and the second indent arc shaped surface of limit rib 93a ' corresponding thereto of muscle 93b ', surround the first space of non-closure; Start muscle 93b " the first indent arc shaped surface and limit rib 93a corresponding thereto " the second indent arc shaped surface between, surround the second space of non-closure.Wherein, in the first space, be mounted with the first shock reducing structure 93c, in second space, be mounted with the second shock reducing structure 93c '.In the utility model, the first shock reducing structure 93c and the second shock reducing structure 93c ' adopt the identical cylindrical body of structure or spheroid, it adopts plastic material to make, as rubber, and adding man-hour, the first shock reducing structure 93c and the second shock reducing structure 93c ' can adopt solid construction, also can adopt hollow-core construction.
Preferably, the radius of the first shock reducing structure 93c and the second shock reducing structure 93c ' is less than the radius of curvature of the first indent arc shaped surface and the second indent arc shaped surface, when the first indent arc shaped surface and the second indent arc shaped surface corresponding thereto form the first space or second space, can make to settle the first shock reducing structure 93c in the inner or the second shock reducing structure 93c ' respectively with described the first indent arc shaped surface and the second indent arc shaped surface Spielpassung, shock reducing structure can not be stuck like this, and is convenient to have certain distortion when the collision of shock reducing structure and limit rib contacts and strengthens buffer function.Preferably, the first shock reducing structure 93c and the second shock reducing structure 93c ' adopt unfixed form in described the first space and second space, can Free-rolling or slip in the first space and second space, and, the first shock reducing structure 93c and the second shock reducing structure 93c ' are yi word pattern and distribute, and the first shock reducing structure 93c and the second shock reducing structure 93c ' are symmetrically distributed in the both sides of described rotor shaft 91.
Wherein, the tubular body outer wall of axle sleeve 93a and start muscle 93b ' or start muscle 93b " inwall between ultimate range be less than the diameter of the first shock reducing structure 93c and the second shock reducing structure 93c ', thereby make to start muscle 93b ', start muscle 93b " and limit rib 93a ', 93a " respectively near time, the first shock reducing structure 93c and the second shock reducing structure 93c ' are squeezed, and startup muscle 93b ' and limit rib 93a ', start muscle 93b " and limit rib 93a " itself can not bump, therefore make axle sleeve 93a can not overlap 93b direct collision or friction with startup, can not make axle sleeve 93a and magnetic core 92 direct collisions or friction, thereby when having reduced AC permanent-magnet draining pump and having started between axle sleeve 93a and the first shock reducing structure 93c and the second shock reducing structure 93c ', between the first shock reducing structure 93c and startup cover 93b and magnetic core 92, beating noise between the second shock reducing structure 93c ' and startup cover 93b and magnetic core 92, while making the work of AC permanent-magnet draining pump, vibration is less, quieter.
When design, start muscle 93b ', start muscle 93b " and the first shock reducing structure 93c, the height of the axial direction along rotor shaft 91 of the second shock reducing structure 93c ' is not more than limit rib 93a ', 93a " the height along axial direction, and depart from described the first space and second space for fear of the first shock reducing structure 93c and the second shock reducing structure 93c ', as shown in Figure 2, in tubular body one end of axle sleeve 93a, be equipped with by the outward extending circular platform 93a ' ' ' in axle center, the bottom of platform 93a ' ' ' and limit rib 93a ', 93a " top be fixedly connected with respectively, thereby by the first shock reducing structure 93c and the second shock reducing structure 93c ' respectively by shutoff in described the first space and second space.During fabrication, the tubular body of axle sleeve 93a, platform 93a ' ' ' and limit rib 93a ', 93a " integrated structure for adopting the method for plastic material by injection process to obtain.And, start muscle 93b ', 93b " with start the also integrated structure for adopting the method for plastic material by injection process to obtain of cover 93b.
The working principle of starting mechanism of the present utility model is described below in conjunction with Fig. 3-5.
As shown in Figure 3, when limit rib 93a ' is during near the startup muscle 93b ' corresponding with it, the first indent arc shaped surface and the second indent arc shaped surface of described limit rib 93a ' and the relative side of startup muscle 93b ' are positioned at same circumference, and enclose the first space of non-closure.Now, limit rib 93a " and start muscle 93b " mutually close, and limit rib 93a " and startup muscle 93b " the first indent arc shaped surface and the second indent arc shaped surface of a relative side be also positioned at same circumference, encloses the second space of non-closure.Now, be placed in respectively the line of symmetry center of the first shock reducing structure 93c in the first space and second space and the second shock reducing structure 93c ' through the axis of rotor shaft 91, the first shock reducing structure 93c and the second shock reducing structure 93c ' are centered by the axis of rotor shaft 91, and phase angle differs 180 °.
As shown in Figure 4, for starting mechanism is clockwise rotated position as shown in Figure 3, stator coil 7 produces action of alternating magnetic field in stator iron core, by stator iron core 8, drive magnetic core 92 to carry out clockwise direction rotation around the axis of rotor shaft 91, the startup being fixed on magnetic core 92 is overlapped 93b along with magnetic core 92 clockwise directions rotate, start the startup muscle 93b ' of cover 93b, start muscle 93b " promote respectively the first shock reducing structure 93c and contact limit rib 93a ' and limit rib 93a with the second shock reducing structure 93c ' ", thereby promote the axle sleeve 93a clockwise direction rotation that suit is fixed on rotor shaft, axle sleeve rotor driven axle 91 rotates along clockwise direction with it, and then the impeller 2 that drive is fixedly connected with rotor shaft 91 rotates along clockwise direction.
As shown in Figure 5, for starting mechanism is rotated counterclockwise position as shown in Figure 3, under action of alternating magnetic field, by stator iron core 8, drive magnetic core 92 to carry out counter clockwise direction rotation around the axis of rotor shaft 91, the startup being fixed on magnetic core 92 is overlapped 93b along with magnetic core 92 counterclockwise rotates.
Start the startup muscle 93b ' on cover 93b, start muscle 93b " while turning to the position as shown in Fig. 5 (b) by the position of Fig. 5 (a), owing to starting muscle 93b ' and limit rib 93a " there is gap, start muscle 93b " and limit rib 93a ' between there is gap, therefore starting muscle 93b ' can turn over limit rib 93a ", start muscle 93b " can turn over limit rib 93a ', and promote respectively the second shock reducing structure 93c ' and the first shock reducing structure 93c rotates counterclockwise after several angle, make to start muscle 93b ' and start muscle 93b " by the second shock reducing structure 93c ' and the first shock reducing structure 93c respectively with limit rib 93a ' and limit rib 93a " contact (as shown in Fig. 5 (c)), promoting thus axle sleeve 93a rotates, axle sleeve 93a drives the rotor shaft 91 being fixedly connected with it to rotate in the counterclockwise direction, and then drive the impeller 2 that is fixed on rotor shaft 91 one end to rotate counterclockwise.
As shown in Figure 4 and Figure 5, in fact, start the inner chamber of cover 93b by starting muscle 93b ' and starting muscle 93b " be along the circumferential direction separated to form two roughly semicircular area; and be first area A and second area B, the first shock reducing structure 93c and the second shock reducing structure 93c ' can only be respectively in first area A and second area B activities.
Preferably, when magnetic core 92 drives rotor shaft 91 of the present utility model are rotated, can the first unloaded maximum angle rotating it be 220 °.
Starting mechanism of the present utility model, when magnetic core rotates, starts muscle and rotates with propeller shaft sleeve by shock reducing structure contact limit rib, and the rotation of axle sleeve drives the rotor shaft that is installed with impeller to rotate, and then impeller is rotated.Therefore, the starting torque that AC permanent-magnet draining pump of the present utility model obtains from motor is large, starts more steady; Particularly, shock reducing structure and limit rib and start between muscle as line contacts, friction is each other sliding friction, so damping is little; Two shock reducing structures are cylindrical and are symmetric and work simultaneously in starting cover, so the good dynamic balance of rotor assembly, and eccentric force is little, long service life.
Although above the utility model is explained in detail; but the utility model is not limited to this; those skilled in the art can modify according to principle of the present utility model; therefore, all various modifications of carrying out according to principle of the present utility model all should be understood to fall into protection domain of the present utility model.
Claims (10)
1. a starting mechanism for AC permanent-magnet draining pump, rotates for drives impeller, it is characterized in that comprising:
Rotor shaft (91), its one end is fixed with impeller (2);
Magnetic core (92), rotation is placed on rotor shaft (91);
Start cover (93b), one end away from impeller (2) of described magnetic core (92) is settled and be fixedly connected with to surrounding rotor axle (91), starts cover (93b) inwall and be provided with two and start muscle (93b ', 93b ");
Axle sleeve (93a), is fixedly mounted on described rotor shaft (91) and goes up and be placed in described startup cover (93b), and axle sleeve (93a) outer wall is provided with two limit ribs (93a ', 93a "), wherein
Two start muscle (93b ', 93b ") inner chamber that starts cover (93b) are divided into the first and second regions (A, B), are mounted with the first shock reducing structure (93c) in first area, are mounted with the second shock reducing structure (93c ') in second area;
Start between muscle (93b ', 93b ") and limit rib (93a ', 93a ") and there is anti-interference gap, so that one of them starts muscle (93b '), can turn over a limit rib in two limit ribs (93a ', 93a ") (93a "), another starts muscle (93b ") can turn over another limit rib in two limit ribs (93a ', 93a ") (93a ').
2. the starting mechanism of AC permanent-magnet draining pump according to claim 1, it is characterized in that: two sidewalls of described startup muscle (93b ', 93b ") have respectively the first indent arc shaped surface; two sidewalls of described limit rib (93a ', 93a ") have respectively the second indent arc shaped surface, and described the first indent arc shaped surface and the second indent arc shaped surface are for coordinating with described the first shock reducing structure and the second shock reducing structure.
3. the starting mechanism of AC permanent-magnet draining pump according to claim 2, it is characterized in that: described the first indent arc shaped surface is identical with the radius of curvature of the second indent arc shaped surface, between described the first indent arc shaped surface and its corresponding the second indent arc shaped surface, form the non-closed space of accommodating the first shock reducing structure or the second shock reducing structure.
4. the starting mechanism of AC permanent-magnet draining pump according to claim 3, it is characterized in that, described the first shock reducing structure (93c) and described the second shock reducing structure (93c ') be cylindrical body or the spheroid that structure is identical, its radius is less than the described radius of curvature of described the first indent arc shaped surface.
5. the starting mechanism of AC permanent-magnet draining pump according to claim 1, is characterized in that, described anti-interference gap is formed between the outer wall of the inwall of described startup muscle (93b ', 93b ") and described limit rib (93a ', 93a ").
6. the starting mechanism of AC permanent-magnet draining pump according to claim 1, it is characterized in that, distance between the tubular body outer wall of described axle sleeve (93a) and described startup muscle (93b ', 93b ") inwall is less than the diameter of described shock reducing structure (93c, 93c '), and the distance of described startup cover inwall and limit rib outer wall is less than the diameter of described shock reducing structure (93c, 93c ').
7. the starting mechanism of AC permanent-magnet draining pump according to claim 1, it is characterized in that, described two limit ribs (93a ', 93a ") are for being symmetrically set in two outwardly portions of the tubular body outer wall of described axle sleeve (93a), described two start muscle (93b ', 93b ") for be symmetrically set in described startup cover (93b) inwall and along described startup cover (93b) radially to two projecting inward bumps.
8. the starting mechanism of AC permanent-magnet draining pump according to claim 7, it is characterized in that, described two limit ribs (93a ', 93a ") are formed in one with described axle sleeve (93a), and described two start described startup cover (93b) part that muscle (93b ', 93b ") are formed in one.
9. the starting mechanism of AC permanent-magnet draining pump according to claim 1, is characterized in that, a part for the described startup cover (93b) that described startup muscle (93b ', 93b ") is formed in one.
10. the starting mechanism of AC permanent-magnet draining pump according to claim 1, is characterized in that, described startup cover (93b) is made by nonmagnetic substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320567067.4U CN203500035U (en) | 2013-09-12 | 2013-09-12 | Actuating mechanism for alternating current and permanent magnet drainage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320567067.4U CN203500035U (en) | 2013-09-12 | 2013-09-12 | Actuating mechanism for alternating current and permanent magnet drainage pump |
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| Publication Number | Publication Date |
|---|---|
| CN203500035U true CN203500035U (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320567067.4U Expired - Lifetime CN203500035U (en) | 2013-09-12 | 2013-09-12 | Actuating mechanism for alternating current and permanent magnet drainage pump |
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| CN (1) | CN203500035U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067032A (en) * | 2018-08-22 | 2018-12-21 | 广东赛普电器制造有限公司 | Rotor structure for permanent magnet motor |
-
2013
- 2013-09-12 CN CN201320567067.4U patent/CN203500035U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067032A (en) * | 2018-08-22 | 2018-12-21 | 广东赛普电器制造有限公司 | Rotor structure for permanent magnet motor |
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Address after: 529040 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen Patentee after: HANYU GROUP Co.,Ltd. Address before: 529040 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen Patentee before: JANGMEN IDEAR HANYU ELECTRICAL JOINT-STOCK Co.,Ltd. |
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Granted publication date: 20140326 |
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