CN102751834A - Motor of direct current brushless motor pump and direct current brushless motor pump - Google Patents
Motor of direct current brushless motor pump and direct current brushless motor pump Download PDFInfo
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- CN102751834A CN102751834A CN2011100967849A CN201110096784A CN102751834A CN 102751834 A CN102751834 A CN 102751834A CN 2011100967849 A CN2011100967849 A CN 2011100967849A CN 201110096784 A CN201110096784 A CN 201110096784A CN 102751834 A CN102751834 A CN 102751834A
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Abstract
The invention discloses a direct current brushless motor pump and a motor thereof. The motor disclosed by the invention comprises a circuit board, a stator subassembly and a rotor subassembly which match with each other in use. The stator subassembly comprises a stator core, a stator insulator and a stator winding. The circuit board is fixed on the outer circumferential face of the stator subassembly and is electrically connected with the stator winding. The circuit board comprises a counter potential detection device. Located on the outer circumferential face of the stator subassembly, the circuit board of the motor no longer occupies the room at the end part of the stator subassembly, so the size of the motor in the axial direction can be reduced and therefore the size and the weight of the motor are reduced. Meanwhile, with such structure, the circuit board and the stator winding are easier to integrally package by plastic or the circuit board is easier to individually package by plastic. Moreover, the arrangement that the circuit board is located on the outer circumferential face of the stator subassembly is also favorable for the electric connection of the circuit board and the stator winding and is good for the arrangement of the wires. In addition, since the circuit board is located on the outer circumferential face of the stator subassembly, the circuit board is unnecessary to arrange to be a circle structure matching with a motor shaft. In such a way, the integration of the electrical apparatus elements is improved, the utilization ratio of the substrate of the circuit board is improved and the costs of the circuit board and the motor are reduced.
Description
Technical field
The present invention relates to a kind of draining pump that is used for air-conditioning, particularly a kind of motor of dc brushless motor pump also relates to a kind of dc brushless motor pump with this motor.
Background technology
For the ceiling type air-conditioning, it is a major issue of such air-conditioning that the condensed water that how evaporator is produced is discharged to outdoor; Therefore, the ceiling type air-conditioning generally is equipped with draining pump and drip tray; Drip tray is used to collect condensed water, and the condensed water that the draining pump intake is used for drip tray is collected sucks, and arrives outdoor or other precalculated positions through predetermined discharge of pipes.
The environment for use of ceiling type air-conditioning has proposed very high requirement to the service behaviour of draining pump, requires its draining pump to have predetermined flow and lift on the one hand, successfully condensed water is discharged; On the other hand, the operating noise of draining pump is proposed strict requirement, required it to have lower operating noise.
Draining pump mainly comprises two parts: the pump housing and motor.The pump housing comprises pump housing shell and the impeller that is positioned at pump housing shell.Motor generally comprises circuit board, front end housing assembly, rear end cap assembly, stator module, rotor assembly.Front end housing assembly and rear end cap assembly form electric machine casing.Stator module is fixed in the electric machine casing; Motor shaft, rotor magnetic steel and the rotor field spider composition rotor assembly that is fixedly linked; Circuit board changes the magnetic field of stator module and then the running of control motor through suitable control and drive circuit; One end of motor shaft stretches out outside the electric machine casing, and stretches into and link to each other with impeller in the pump housing shell.When electric motor starting, motor shaft can together rotate with rotor, thereby the drives impeller rotation sucks condensed water through suction inlet, through outlet condensed water is discharged again.The motor of draining pump adopts dc brushless motor usually, and therefore, this draining pump is called the dc brushless motor pump.
Current; In order to realize that the motor of dc brushless motor pump is controlled automatically, circuit board need the detection rotor assembly rotating speed, the kinematic parameter and then the operating condition of definite motor such as turn to; Again according to the operating condition of motor; The electric current of each phase stator winding produces predetermined magnetic field in the control stator module, realizes the control to the motor movement state.For ease to the detection of motor movement parameter; Circuit board need be provided with the transducer of the detection rotor position that is positioned at the rotor assembly end face; This transducer is corresponding with the suitable part of rotor assembly, with detection rotating speed of motor and direction of rotation, and then the kinematic parameter of the rotor assembly of acquisition motor.
In the disclosed motor of Chinese patent document CN101588089A, circuit board is located in the end face of stator module.Because circuit board is positioned at the end face of stator module, the motor of existing dc brushless motor pump is bigger at axial length, and it is very inconvenient to cause the dc brushless motor pump to be installed.
Therefore, how when guaranteeing circuit board control motor rotation, the length on axis direction that reduces the motor of dc brushless motor pump is current those skilled in the art's technical issues that need to address.
In addition, stable and reliable in the prior art in order to guarantee circuit board, the corresponding structure fixing circuit board need be set; This makes that not only the structure of motor is complicated more, makes that also the line between circuit board and the stator winding is arranged very difficulty, causes its reliability to reduce; In order to be complementary with motor shaft, circuit board also need be set to circular ring, so that motor shaft passes, the integrated level that this has just reduced electric elements makes that the substrate utilance of circuit board is lower, has increased the manufacturing cost and use cost of circuit board.
Summary of the invention
To the problems referred to above, first purpose of the present invention is, a kind of motor of dc brushless motor pump is provided, and this motor can reduce the length on axis direction of the motor of dc brushless motor pump when guaranteeing circuit board control motor rotation.
Second purpose of the present invention is, a kind of dc brushless motor pump that comprises above-mentioned motor is provided.
The motor of dc brushless motor pump provided by the invention comprises electric machine casing, circuit board and stator module that is used and rotor assembly, and said stator module comprises stator core, stator insulation body and stator winding; Said circuit board is fixed on the outer peripheral face of said stator module, and is electrically connected with said stator winding; Said circuit board comprises the back-emf checkout gear.
Optional, the periphery of said stator insulation body forms the erecting bed of outside protrusion, the flat surface of the parallel axes of said erecting bed formation and motor; The substrate of said circuit board and said flat surface are fitted or part is fitted.
Optional, said erecting bed is provided with the axial contact pin of bearing of trend and said parallel axes, and first end face of said stator insulation body is stretched out in the outer end of said axial contact pin, the said erecting bed of inner insertion; The outer end of said axial contact pin is electrically connected with stator winding, and inner end is electrically connected with said circuit board.
Optional, the outer end of said axial contact pin forms a cutting edge at least.
Optional, said erecting bed is provided with the radially contact pin of bearing of trend and said axis normal; Said radially contact pin is inner to insert erecting bed, and is electrically connected with the inner of axial contact pin; Said flat surface is stretched out in the outer end of said radially contact pin, and passes the substrate of said circuit board, and the outer end of said radially contact pin is electrically connected with said circuit board.
Optional, said erecting bed forms radial slot and the axial hole that is connected; Said radial slot is positioned at the surface towards second end face of said stator insulation body of said erecting bed; Said axial contact pin is with radially contact pin is integrally formed, and said radially contact pin cooperates with said radial slot and axial hole respectively with axial contact pin.
Optional, the lead-in wire of said stator winding is weldingly fixed on the outer end of said axial contact pin after coiling on the said axial contact pin.
Optional, first end face of said stator insulation body forms axially extended coil external support board; The lateral surface of said coil external support board is provided with the positive stop lug boss of evagination.
Optional, the lateral surface of said coil external support board is provided with at least two positive stop lug boss that are disposed in order at axis direction.
Optional, the end face of said stator insulation body forms the limited post of bearing of trend and said parallel axes; The lead-in wire of at least one phase stator winding is electrically connected with said axial contact pin after passing the space between said limited post and the coil external support board.
Optional, said electric machine casing forms the circuit board chamber; Said circuit board plastic packaging is in said circuit board chamber.
Optional, said circuit board and stator winding one plastic packaging are in said electric machine casing.
Dc brushless motor pump provided by the invention comprises the pump housing; The said pump housing comprises lower pump body shell, upper pump casing shell and impeller, and said lower pump body shell becomes impeller cavity with the upper pump casing hull shape, and said impeller is arranged in impeller cavity; The motor that also comprises above-mentioned any dc brushless motor pump; Said upper pump casing shell and electric machine casing are fixed, and motor shaft one end passes the upper pump casing shell and stretches in the impeller cavity, links to each other with impeller.
Compared with prior art, in the motor of dc brushless motor pump provided by the invention, said circuit board is fixed on the outer peripheral face of said stator module, and is electrically connected with said stator winding; Said circuit board comprises the back-emf checkout gear.The rotating speed and the direction of rotation that detect the rotor assembly of motor through the back-emf checkout gear can guarantee the control to the motor movement state.Because circuit board is positioned at the outer peripheral face of stator module, circuit board no longer takies the locational space of said stator module end, and then can reduce the size on the axis direction of motor; Simultaneously, circuit board is positioned at the outer peripheral face of stator module, also helps being electrically connected between circuit board and the stator winding, makes things convenient for the layout of line; In addition, circuit board is positioned at the outer peripheral face of stator module, need not be arranged to the loop configuration that cooperates with motor shaft, can improve the integrated level of electric elements like this, improves the utilance of circuit board substrate, reduces the cost of circuit board and motor.
With the technique scheme is the basis, and in further technical scheme, the periphery of said stator insulation body forms the erecting bed of outside protrusion, the flat surface of the parallel axes of said erecting bed formation and motor, and said circuit board substrate and said flat surface are fitted.In this technical scheme, the substrate of circuit board and the parallel axes of motor can make things convenient for the layout of stator winding lead-in wire like this, are convenient to being electrically connected between circuit board and the stator winding; The substrate of circuit board and flat surface are fitted can guarantee circuit board fixation stability property and reliability.
With the technique scheme is the basis, and in further technical scheme, erecting bed is provided with axial contact pin, axially the bearing of trend of contact pin and the parallel axes of motor; Can make the lead-in wire of axial contact pin and stator winding keep vertical basically like this, and then help the winding of stator winding lead-in wire, being connected between the lead-in wire that makes things convenient for stator winding and the axial contact pin; Help guaranteeing the lead-in wire and the reliability that axially is electrically connected between the contact pin of stator winding like this, improve the reliability of motor rotation.
With the technique scheme is the basis, and in further technical scheme, the outer end of said axial contact pin forms a cutting edge at least.When the coiling stator winding, can be easily the lead-in wire of corresponding stator winding be cut off through cutting edge, and then can improve the efficient of coil winding.
Is the basis with the technique scheme, in further technical scheme, the substrate of circuit board is installed on the stator insulation body through contact pin radially; This technical scheme can be in the connection reliability that guarantees between circuit board and the stator winding, makes things convenient for the installation of circuit board and fixing.
With the technique scheme is the basis, and in further technical scheme, said erecting bed forms radial slot and axial hole; Said axial contact pin is with radially contact pin is integrally formed, and said radially contact pin cooperates with radial slot and axial hole respectively with axial contact pin.Utilize this technical scheme; Just can circuit board be installed on the stator insulation body through simple contact pin, contact pin plays simultaneously and connects and fixing effect, so just can be when assurance is simple in structure; For the assembling of motor is provided convenience, improve the packaging efficiency of motor.
On the basis, the lead-in wire of said stator winding welds fixing after said axial contact pin outer end coiling in technique scheme.This technical scheme can guarantee the lead-in wire and the reliability that axially is electrically connected between the contact pin of stator winding on the one hand; Can guarantee the lead-in wire of stator winding and axial reliability of fixation between the contact pin on the other hand.
With the technique scheme is the basis, and in further technical scheme, the lateral surface of said coil external support board is provided with positive stop lug boss; Utilize positive stop lug boss can limit the position of stator winding lead-in wire, guarantee the fixing of stator winding lead-in wire, and then prevent to avoid causing motor rotation bad owing to friction between lead-in wire and the stator core destroys the insulating barrier of lead-in wire; So also help improving the success rate and the coiling efficient of the coiling of stator winding.
With the technique scheme is the basis, and in further technical scheme, said coil external support board lateral surface is provided with axial arranged a plurality of cambered outwards positive stop lug boss.Can the lead-in wire of multi phase stator winding be positioned respectively through a plurality of positive stop lug boss, guarantee the stability of the lead-in wire cabling of each stator winding, avoid friction and lead-in wire damage between the lead-in wire of different stator winding.
With the technique scheme is the basis, and in further technical scheme, the end face of said stator insulation body forms the limited post of bearing of trend and said parallel axes; The lead-in wire of at least one phase stator winding passes said limited post and is electrically connected with said axial contact pin with space between the coil external support board.In this technical scheme, limited post can limit the position of the lead-in wire of stator winding, and the outer peripheral face of scurrying stator module of avoiding going between contacts with stator core, guarantees the position of lead-in wire; Simultaneously, can improve coil winding efficient through limited post.
Be positioned at the structure of the outer peripheral face of stator module based on circuit board, this structure has to utilize and realizes the one plastic packaging of circuit board and stator winding or the independent plastic packaging of circuit board; Therefore, in further technical scheme, circuit board makes things convenient for the assembling of motor, and helps the assurance to circuit board through the fixing structure that can simplify motor of plastic packaging.When the one plastic packaging of circuit board and stator winding, help guaranteeing the reliability that is connected between circuit board and the stator winding.
Description of drawings
Fig. 1 is the sectional structure chart of the motor of the dc brushless motor pump that provides of the embodiment of the invention one;
Fig. 2 is that embodiment one provides the stator module of motor and the structural representation of circuit board;
Fig. 3 is the structure chart of the stator module in the motor that provides of embodiment one;
Fig. 4 is the sectional structure chart of the stator module in the motor that provides of embodiment one;
Fig. 5 is the three-dimensional structure diagram of the stator module in the motor that provides of embodiment one;
Fig. 6 is the structure chart of the stator module of the motor that provides of the embodiment of the invention two;
Fig. 7 is the three-dimensional structure diagram of the stator module in the motor that provides of embodiment two;
Fig. 8 is the stator module of the motor that provides of the embodiment of the invention three and the structure chart of circuit board;
Fig. 9 illustrates the circuit board of motor and the structural representation of stator winding one plastic packaging.
Embodiment
Describe the present invention below in conjunction with accompanying drawing, the description of this part only is exemplary and explanatory, should not be regarded as the restriction to public technology content of the present invention.
Should be noted that: in the presents, the axis of said motor is the rotation of the motor shaft of motor; Said " interior " and " outward " serve as that " interior " is the position near this axis with reference to definite with this axis all, and " outward " is the position away from this axis; Said " radially " is the direction with this axis normal.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the sectional structure chart of the motor of the dc brushless motor pump that provides of the embodiment of the invention one; Fig. 2 is the structural representation that embodiment provides the stator module of motor.
This motor comprises stator module 100, rotor assembly 200, front end housing assembly 300 and rear end cap assembly 400.Front end housing assembly 300 forms electric machine casing with rear end cap assembly 400.Stator module 100 comprises stator core 110, stator insulation body 120 and stator winding 130; Form a plurality of stator tooths on the stator core 110, on stator tooth, be enclosed with stator insulation body 120; Stator winding 130 is formed on outside the stator insulation body 120, and stator insulation body 120 is isolated stator core 110 and stator winding 130, keeps the insulation between stator core 110 and the stator winding 120.The rotor winding and the motor shaft of rotor assembly 200 are fixed, and the rotation of motor shaft is O-O.Stator module 100 and rotor assembly 200 are used, the structure of the two and between relation can be identical with prior art, be not described in detail in this.
Difference with the prior art is, in the motor that embodiment one provides, the circuit board 500 of stator module 100 is fixed on the outer peripheral face of stator module 100 through contact pin 140, and circuit board 500 is electrically connected with the lead-in wire of stator winding 120 through contact pin 140.In order to keep detection to rotor assembly rotary speed and direction of rotation; Also comprise the back-emf checkout gear in the circuit board 500; Obtaining the operating parameters of rotor assembly, and then, realize control to the motor rotation state according to the sense of current of the operating parameters control stator winding 130 of rotor assembly.
In the present embodiment, because circuit board 500 is positioned at the outer peripheral face of stator module 100, circuit board 500 no longer takies the locational space of motor end, can reduce the distance on the axis direction of motor; Simultaneously; Circuit board 500 is positioned at the outer peripheral face of stator module 100; Can link to each other with respective terminal of circuit board 500 easily by the lead-in wire through stator winding 130, and then help being electrically connected between circuit board 500 and the stator winding 130, make things convenient for the layout of line; In addition; Circuit board 500 is positioned at the outer peripheral face of stator module 100, need not be arranged to the loop configuration that cooperates with motor shaft, can improve circuit board 500 electric elements integrated levels like this; Improve circuit board 500 substrate utilances, reduce the cost of circuit board 500 and motor.
Please refer to Fig. 3 and Fig. 4, Fig. 3 is the structure chart of the stator module in the motor that provides of embodiment one; Fig. 4 is the sectional structure chart of the stator module in the motor that provides of embodiment one.
Among the embodiment one, the outer peripheral face of stator insulation body 120 forms export-oriented protruding erecting bed 121, and erecting bed 121 forms the flat surface 1211 parallel with the axes O-O of motor; Also form radial slot 1212 that radially extends and the axial hole 1213 that extends along axis direction in the erecting bed 121; Radial slot 1212 cross sections are rectangle, be positioned at erecting bed 121, towards the surface of the lower surface of stator module 100 (be illustrated as with reference to); Axial hole 1213 communicates with radial slot 1212, and for square, and its opening is towards the upper surface of stator module 100.Please combine Fig. 3, in this example, contact pin 140 is formed as one, and comprises orthogonal axial contact pin 141 of bearing of trend and contact pin 142 radially.After installation, radially contact pin 142 and axial contact pin 141 respectively with radial slot 1212 and axial hole 1213 interference fit; Make contact pin 140 and stator insulation body 120 keep fixing.Simultaneously, radially flat surface 121 is stretched out in the outer end of contact pin 142, and passes the substrate of circuit board 500, and the substrate of circuit board 500 and flat surface 1211 are fitted, and keeps fixing with stator insulation body 120; Simultaneously, radially the outer end of contact pin 142 keeps being electrically connected with the predetermined terminals of circuit board 500.
During installation, the substrate of circuit board 500 is installed on the stator insulation body 120 through contact pin 142 radially; Can make things convenient for installing and fixing of circuit board 500 like this.After the installation, the substrate of circuit board 500 is parallel with the axes O-O of motor; Corresponding with the structure of erecting bed 121 and circuit board 500, the front end housing assembly 300 of motor is provided with corresponding space, to hold erecting bed 121 and circuit board 500.The axes O of the substrate of circuit board 500 and motor-O keeping parallelism can make things convenient for circuit board 500 to be connected with circuit between the stator winding 130; Circuit board 500 substrates and flat surface 121 are fitted and can be guaranteed the stability and the reliability of circuit board 500.
Please refer to Fig. 5, this figure is the three-dimensional structure diagram of the stator module in the motor that provides of embodiment one.Among the embodiment one, the upper surface that said stator insulation body 120 is stretched out in the outer end of axial contact pin 141; The lead-in wire of corresponding stator winding 130 is after some circles are twined in the outer end of corresponding axial contact pin 141, and it is fixing with the outer end welding of axial contact pin 141 to go between again; Can guarantee welding reliability between contact pin 140 and stator winding 130 lead-in wires like this; Reduce the solder joint of rosin joint; The reliability that is electrically connected between stator winding 130 and the contact pin 140 not only can be kept, reliability of fixation between stator winding 130 lead-in wires and the contact pin 140 can also be guaranteed.In this example; Axially contact pin 141 bearing of trends are parallel with axes O-O; Can make the lead-in wire and the axial contact pin 141 of stator winding 130 keep vertical basically like this; This not only can twine by more convenient stator winding 130 lead-in wires, also helps lead-in wire that guarantees stator winding 130 and the reliability that axially is electrically connected between the contact pin 141.
In this example, axially the cross section of contact pin 141 is that square, square rectangular edge forms predetermined cutting edge; After the lead-in wire coiling finishes, can apply predetermined active force to lead-in wire, the cutting edge that utilizes the rectangular edge of axial contact pin 141 to form cuts off the lead-in wire of corresponding stator winding 130, makes things convenient for the coiling of coil.The cross section that is appreciated that axial contact pin 141 is not limited to square, also can be rectangle or other shapes; The structure that forms cutting edge is not limited to polygonal seamed edge; Also can form at least one cutting edge through other structures, and cut off the lead-in wire of corresponding stator winding 130, the coiling of convenient lead-in wire through this cutting edge in the axial outer end of contact pin 141.
When circuit board 500 was arranged on the outer peripheral face of stator module 100, circuit board 500 was not limited to utilize the mode of erecting bed 121 and stator module 100 to keep fixing, also can keep fixing through other modes and stator module 100; Certainly, circuit board 500 is not limited to be electrically connected with stator winding 130 through integrally formed contact pin 140, also can through other modes keep with stator winding 130 between be electrically connected; Equally; Contact pin 140 is not limited to integrally formed; Also can be divided into relatively independent axial contact pin 141 and contact pin 142 radially, and make that axial contact pin 141 is inner to be electrically connected with contact pin 142 radially, make axial contact pin 141 and radially contact pin 142 be electrically connected with stator winding 130 and circuit board 500 respectively; Axial contact pin 141 or contact pin 142 radially also can only be set; Certainly, the bearing of trend of contact pin 140 is not limited to axial or/and radially extension also can make contact pin 140 extend in predetermined direction according to actual installation or design demand.
Please refer to Fig. 6, this figure is the structure chart of the stator module of a kind of motor of providing of the embodiment of the invention two.In this stator module 100, the part of stator insulation body 120 parcel stator cores 110 tooth portions forms the winding section, and the place, winding section forms stator winding 130; Begin supporting bracket 122 in the axially extended coil in the formation of the inboard of winding section from stator insulation body 120 1 end faces, the interior supporting bracket 122 of coil is used for supporting and restriction stator winding 130 cablings inwardly slide; In this example, the width of supporting bracket 122 equates with the tooth portion width of stator core 110 basically in the coil.With respect to the position between two tooth portions of stator core 110, stator insulation body 120 forms a winding slot; Begin support portion 123 outside the axially extended coil in the formation of the outside of this winding slot from stator insulation body 120 end faces; The cabling that the outer support portion 123 of coil is used to support and limit stator winding 130 outwards slides; The width of the outer support portion 122 of coil equates with the width of winding slot basically.Be the convenience of coiling, supporting bracket 122 is arc structure with coil external support board 123 outer ends in the above-mentioned coil, to reduce the adverse effect to the coil cabling, makes things convenient for coil winding.In addition, the lateral surface at coil external support board 123 is provided with cambered outwards positive stop lug boss 1231; The particular location of positive stop lug boss 1231 can confirm according to actual needs, can be more near the bottom of coil external support board 123, and in this example, positive stop lug boss 1231 is positioned at the position near the outer end of coil external support board 123.
Please refer to Fig. 7, this figure is the three-dimensional structure diagram of the stator module in the motor that provides of embodiment two.In the coiling process; The lead-in wire of corresponding stator winding 130 is when coiling is to another stator tooth from the stator tooth of initial coiling, the position between the end face of positive stop lug boss 1231 and the stator module 100 of the wiring path of lead-in wire through coil external support board 123; Positive stop lug boss 1231 can limit corresponding stator winding 130 lead-in wire walk line position, guarantee the fixing of stator winding 130 lead-in wires; Like this, in the coil winding process, do not need manual lead-in wire to be adjusted, and then can improve the coiling efficient of coil, prevent to go between and stator core 110 between friction and destroy the insulating barrier of lead-in wire, avoid causing motor rotation bad; Also help like this improve stator winding 130 turn to power and coiling efficient.
In this example, on stator module 100 circumferential direction, the width of positive stop lug boss 1231 is less than the width of coil external support board; Can reduce the adverse effect of 1231 pairs of coil windings of positive stop lug boss like this.When motor has multi phase stator winding 130; Mutual friction of lead-in wire phase or contact for fear of multi phase stator winding 130; A plurality of positive stop lug boss 1231 also can be set; Make not that the lead-in wire of homophase stator winding 130 passes through from position between the different positive stop lug boss 1231 respectively, by different positive stop lug boss 1231 spacing positions.
Between every phase stator winding 130 and contact pin 140, the starting point of every phase stator winding 130 and the lead-in wire of terminating point all are connected on the corresponding contact pin 140 through the mode of coiling.In this example, the upper surface of the erecting bed 121 of stator insulation body 120 forms two limited posts 124 that bearing of trend is parallel with axes O-O; Limited post 124 has suitable height, and when the lead-in wire of corresponding stator module 130 linked to each other with contact pin 140, the lead-in wire of corresponding stator winding 130 passed limited post 124 and is electrically connected with contact pin 140 with space between the coil external support board 123.Like this, limited post 124 can limit the position of the lead-in wire of stator winding 130, and the outer peripheral face of scurrying stator module 100 of avoiding going between contacts with stator core 110, guarantees the reliability that is connected between lead-in wire and the axial contact pin 141.Certainly; Limit post 124 and be not limited to two; Also respective numbers can be set according to actual needs; The height that limits post 124 can be set according to actual needs, preferably makes qualification post 124 outer ends concordant basically with coil external support board 123, so that limit post 124 outer ends and the coil external support board 123 relative line positions of walking that also combine the restriction pitch of the laps.
Please refer to Fig. 8, this figure is the stator module of the motor that provides of the embodiment of the invention three and the structure chart of circuit board, and this illustrates the structure chart of the independent plastic packaging of circuit board.In the foregoing description, circuit board 500 is positioned at the outer peripheral face of stator module 100, and this structure helps realizing that the circuit board plastic packaging fixes; Therefore, among the embodiment three, electric machine casing forms the circuit board chamber of reservation shape, and circuit board 500 is arranged in the circuit board chamber, and has the plastic-sealed body that is formed by capsulation material in the circuit board chamber; So just with in the circuit board independent plastic packaging circuit board chambers 500.Through plastic packaging circuit board 500 is fixed in the circuit board chamber.Have many-sided technique effect: at first, plastic-sealed body not only can be fixed on circuit board 500 in the circuit board chamber, can also protect circuit board 500, and then improve Electric Machine Control, reliability of operation; Secondly,, can simplify the structure of motor, make things convenient for the assembling of motor through plastic packaging fixing circuit board 500.
For the reliability that guarantees to be connected between circuit board 500 and the stator winding 130; Can also be in electric machine casing with circuit board 500 and stator winding 130 one plastic packagings; As shown in Figure 9, this illustrates the circuit board of motor and the structural representation of stator winding one plastic packaging.
Providing on the basis of above-mentioned motor, the present invention also provides a kind of dc brushless motor pump, and this dc brushless motor pump comprises the pump housing; The said pump housing comprises lower pump body shell, upper pump casing shell and impeller, and said lower pump body shell becomes impeller cavity with the upper pump casing hull shape, and said impeller is arranged in impeller cavity; The motor that also comprises above-mentioned any dc brushless motor pump; Said upper pump casing shell and electric machine casing are fixed, and motor shaft one end passes the upper pump casing shell and stretches in the impeller cavity, links to each other with impeller.Because above-mentioned motor has above-mentioned technique effect, comprises that the dc brushless motor pump of this motor also has corresponding technique effect.
The above only is a preferred implementation of the present invention; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the principle of the invention, can also make some improvement, retouching or suitable mode and make up, these improvement, retouching and combination also should be regarded as protection scope of the present invention.
Claims (13)
1. the motor of a dc brushless motor pump comprises electric machine casing, circuit board and stator module that is used and rotor assembly, and said stator module comprises stator core, stator insulation body and stator winding; It is characterized in that said circuit board is fixed on the outer peripheral face of said stator module, and be electrically connected with said stator winding; Said circuit board comprises the back-emf checkout gear.
2. the motor of dc brushless motor pump according to claim 1 is characterized in that, the periphery of said stator insulation body forms the erecting bed of outside protrusion, the flat surface of the parallel axes of said erecting bed formation and motor; The substrate of said circuit board and said flat surface are fitted or part is fitted.
3. the motor of dc brushless motor pump according to claim 2; It is characterized in that; Said erecting bed is provided with the axial contact pin of bearing of trend and said parallel axes, and first end face of said stator insulation body is stretched out in the outer end of said axial contact pin, the said erecting bed of inner insertion; The outer end of said axial contact pin is electrically connected with stator winding, and inner end is electrically connected with said circuit board.
4. the motor of dc brushless motor pump according to claim 3 is characterized in that, the outer end of said axial contact pin forms a cutting edge at least.
5. the motor of dc brushless motor pump according to claim 3 is characterized in that, said erecting bed is provided with the radially contact pin of bearing of trend and said axis normal; Said radially contact pin is inner to insert erecting bed, and is electrically connected with the inner of axial contact pin; Said flat surface is stretched out in the outer end of said radially contact pin, and passes the substrate of said circuit board, and the outer end of said radially contact pin is electrically connected with said circuit board.
6. the motor of dc brushless motor pump according to claim 5 is characterized in that, said erecting bed forms radial slot and the axial hole that is connected; Said radial slot is positioned at the surface towards second end face of said stator insulation body of said erecting bed; Said axial contact pin is with radially contact pin is integrally formed, and said radially contact pin cooperates with said radial slot and axial hole respectively with axial contact pin.
7. according to the motor of each described dc brushless motor pump of claim 3-6, it is characterized in that the lead-in wire of said stator winding is weldingly fixed on the outer end of said axial contact pin after coiling on the said axial contact pin.
8. according to the motor of each described dc brushless motor pump of claim 3-6, it is characterized in that first end face of said stator insulation body forms axially extended coil external support board; The lateral surface of said coil external support board is provided with the positive stop lug boss of evagination.
9. the motor of dc brushless motor pump according to claim 8 is characterized in that, the lateral surface of said coil external support board is provided with at least two positive stop lug boss that are disposed in order at axis direction.
10. the motor of dc brushless motor pump according to claim 8 is characterized in that, the end face of said stator insulation body forms the limited post of bearing of trend and said parallel axes; The lead-in wire of at least one phase stator winding is electrically connected with said axial contact pin after passing the space between said limited post and the coil external support board.
11. the motor according to each described dc brushless motor pump of claim 1-6 is characterized in that, said electric machine casing forms the circuit board chamber; Said circuit board plastic packaging is in said circuit board chamber.
12. the motor according to each described dc brushless motor pump of claim 3-6 is characterized in that, said circuit board and stator winding one plastic packaging are in said electric machine casing.
13. a dc brushless motor pump comprises the pump housing, the said pump housing comprises lower pump body shell, upper pump casing shell and impeller; Said lower pump body shell becomes impeller cavity with the upper pump casing hull shape, and said impeller is arranged in impeller cavity, it is characterized in that; The motor that also comprises each described dc brushless motor pump of claim 1-12; Said upper pump casing shell and electric machine casing are fixed, and motor shaft one end passes the upper pump casing shell and stretches in the impeller cavity, links to each other with impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100967849A CN102751834A (en) | 2011-04-18 | 2011-04-18 | Motor of direct current brushless motor pump and direct current brushless motor pump |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103457418A (en) * | 2013-09-12 | 2013-12-18 | 安徽奥特佳科技发展有限公司 | Method for locating electric compressor motor socket on stator excircle surface |
| CN104283397A (en) * | 2013-07-10 | 2015-01-14 | 浙江三花汽车零部件有限公司 | Stepping motor coil |
| CN104753299A (en) * | 2013-12-27 | 2015-07-01 | 常州祥明电机有限公司 | Integrated brushless direct-current motor |
| CN107453509A (en) * | 2017-08-21 | 2017-12-08 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of installation method of collets, the motor with the collets and motor |
| CN108661922A (en) * | 2018-05-11 | 2018-10-16 | 克奥兹泵业（深圳）有限公司 | centrifugal water pump and its driving method |
| CN108831673A (en) * | 2018-06-07 | 2018-11-16 | 江苏华阳电器有限公司 | Electromagnetic coil |
| CN111585373A (en) * | 2020-05-20 | 2020-08-25 | 大冶东艾电机有限公司 | Integral brushless motor stator bobbin |
| CN113330665A (en) * | 2019-01-30 | 2021-08-31 | 尼得科盖普美有限责任公司 | Pump with stator directly connected to circuit board |
| CN113958512A (en) * | 2020-07-20 | 2022-01-21 | 日本电产三协株式会社 | Pump device |
| WO2022110360A1 (en) * | 2020-11-27 | 2022-06-02 | 瑞声声学科技(深圳)有限公司 | Brushless electric motor |
| CN115370583A (en) * | 2021-05-19 | 2022-11-22 | 汉宇集团股份有限公司 | Canned motor pump convenient to winding draws and connects external power source |
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| CN104283397B (en) * | 2013-07-10 | 2018-05-29 | 浙江三花汽车零部件有限公司 | A kind of stepper motor coil |
| CN103457418B (en) * | 2013-09-12 | 2016-03-02 | 安徽奥特佳科技发展有限公司 | The localization method of electric compressor motor socket in stator excircle surface |
| CN103457418A (en) * | 2013-09-12 | 2013-12-18 | 安徽奥特佳科技发展有限公司 | Method for locating electric compressor motor socket on stator excircle surface |
| CN104753299A (en) * | 2013-12-27 | 2015-07-01 | 常州祥明电机有限公司 | Integrated brushless direct-current motor |
| CN107453509B (en) * | 2017-08-21 | 2023-06-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Insulating block, motor with insulating block and motor installation method |
| CN107453509A (en) * | 2017-08-21 | 2017-12-08 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of installation method of collets, the motor with the collets and motor |
| CN108661922A (en) * | 2018-05-11 | 2018-10-16 | 克奥兹泵业（深圳）有限公司 | centrifugal water pump and its driving method |
| CN108831673A (en) * | 2018-06-07 | 2018-11-16 | 江苏华阳电器有限公司 | Electromagnetic coil |
| CN113330665A (en) * | 2019-01-30 | 2021-08-31 | 尼得科盖普美有限责任公司 | Pump with stator directly connected to circuit board |
| CN111585373A (en) * | 2020-05-20 | 2020-08-25 | 大冶东艾电机有限公司 | Integral brushless motor stator bobbin |
| CN113958512A (en) * | 2020-07-20 | 2022-01-21 | 日本电产三协株式会社 | Pump device |
| CN113958512B (en) * | 2020-07-20 | 2023-11-17 | 日本电产三协株式会社 | Pump device |
| WO2022110360A1 (en) * | 2020-11-27 | 2022-06-02 | 瑞声声学科技(深圳)有限公司 | Brushless electric motor |
| CN115370583A (en) * | 2021-05-19 | 2022-11-22 | 汉宇集团股份有限公司 | Canned motor pump convenient to winding draws and connects external power source |
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Effective date of registration: 20160819 Address after: 312500 Zhejiang city of Shaoxing province Xinchang County Chengguan town of Liquan Applicant after: Sanhua Refrigeration Group Co., Ltd., Zhejang Address before: 312500 Liquan village of Chengguan Zhejiang city of Shaoxing province Xinchang County town Applicant before: Zhejiang Sanhua Group Co., Ltd. |
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Application publication date: 20121024 |