CN209233673U - Electronic water pump and controller mounting structure for the electronic water pump - Google Patents

Abstract

The utility model proposes a kind of controller mounting structures for electronic water pump, electronic water pump include pump shell, including stator module and can relative to stator module rotate rotor assembly motor and for controlling the controller of motor, the one end of stator module in the axial direction and rotor assembly cooperate, and the other end extends to form the electrical connection cavity for receiving controller and closes the electrical connection cavity by a rear cover；And stator module include be arranged in electrical connection cavity inner wall on it is axially extending from its: at least one fixed column, end be equipped with mounting hole to allow controller to be fastenedly connected to stator module；The end surface of at least three axial limiting parts, end surface and fixed column is in same plane height, the axially position for controller；And at least one lateral Displacement part, there is the end surface higher than the level, the lateral register for controller.This controller mounting structure axial space is small and stock utilization is high.

Description

Electronic water pump and controller mounting structure for the electronic water pump

Technical field

The utility model relates to a kind of controller mounting structures for electronic water pump, and are used for electronic water pump including this Controller mounting structure electronic water pump.

Background technique

As time goes on, automobile industry just gradually develops to the energy conservation and environmental protections such as intelligence, electrification direction, either pass It unites fuel power vehicle or hybrid power or new energy electric motor vehicle and the hydrogen energy source automobile in future, it is lightweight, compact-sized Components will bring direct energy-saving effect for vehicle.

Electronic water pump is light-weight, compact-sized, high-efficient as essential important component in automotive thermal tube reason system It will be the important indicator for evaluating a product, electronic water pump generally controls the operation of motor, existing control by controller Device mounting structure is by individual part such as baffle by pump motor stator rotor part and controller locellus isolation design, this Kind structure causes entire electronic water pump axial space big, and needs independent part baffle, causes stock utilization low；In order to control Device processed is firmly fixed in controller chamber, needs the encapsulating in controller chamber to be positioned toward contact.

The utility model provides that a kind of axial space is small, stock utilization is high, the controller of the simple pump motor of structure Mounting structure.

Utility model content

In order to solve the above technical problems, on the one hand, the utility model proposes a kind of controller installations for electronic water pump Structure, the electronic water pump include pump shell, including stator module and the rotor assembly that can be rotated relative to stator module Motor and for controlling the controller of motor, the one end of the stator module in the axial direction and the rotor assembly cooperate, another End extends to form the electrical connection cavity for receiving the controller and closes the electrical connection cavity by a rear cover；And it is described Stator module include be arranged in it is axially extending from its on the electrical connection cavity inner wall: at least one fixed column, end are set There is mounting hole to allow the controller to be fastenedly connected to the stator module；At least three axial limiting parts, end surface It is in same plane height with the end surface of the fixed column, the axially position for the controller；And at least one Lateral Displacement part has the end surface higher than the level, the lateral register for the controller.

Preferred embodiment according to the present utility model, the stator module includes iron core, coil, and passes through injection molding shape As single-piece.

Preferred embodiment according to the present utility model is additionally provided on the electrical connection cavity inner wall: power supply and signal are inserted Needle, for being connected with external power supply and signal input；With coil inserted sheet, for being connected with the coil of the motor；It is described Power supply and signal pin and the coil inserted sheet pass through injection molding plastic packaging on the stator module.

Preferred embodiment according to the present utility model, the power supply and signal pin and the coil inserted sheet are located at institute Electrical connection cavity two sides and the center relative to the electrical connection cavity is stated generally to be arranged symmetrically.

Preferred embodiment according to the present utility model, the end of the lateral Displacement part have step shape and include: First terrace is not higher than the end surface of the fixed column；Second step face is higher than the end table of the fixed column Face；With backstop side, axially extend between the First terrace and second step face.

Preferred embodiment according to the present utility model, the second step face of the lateral Displacement part and the end of the fixed column Difference in height between portion surface is greater than the thickness of the controller.

Preferred embodiment according to the present utility model, the lateral Displacement part is in the First terrace and second described It is arranged between terrace fluted.

Preferred embodiment according to the present utility model, the quantity of the lateral Displacement part are two.

Preferred embodiment according to the present utility model, the mounting hole of the fixed column are hollow and set in its opening It is equipped with guiding surface, to install fastening connection piece；Also, the fixed column is cylindrical.

Preferred embodiment according to the present utility model, two adjacent axial limiting parts are about in the electrical connection cavity The angle that the heart is formed in a circumferential direction is less than 180 degree.

Preferred embodiment according to the present utility model, the axial limiting part is about the center for being electrically connected cavity in circle It is evenly distributed in circumferential direction.

Preferred embodiment according to the present utility model, the quantity of the axial limiting part are four.

Preferred embodiment according to the present utility model, two adjacent axial limiting parts are about in the electrical connection cavity The angle that the heart is formed in a circumferential direction is followed successively by 90 degree, 120 degree, 30 degree, 120 degree.

One end of preferred embodiment according to the present utility model, the power supply and signal pin reaches the electrical connection chamber External side, to be used cooperatively with external connector；Also, the stator module is on the surface cooperated with the outside connector Be provided with it is described be electrically connected cavity connection relief hole, for the electrical connection cavity and external pressure balance.

Preferred embodiment according to the present utility model, the rear cover are incorporated in the stator module by ultrasonic bonding Together；Also, axially extending welded limiting slot is equipped at position corresponding with the fixed column on the inner wall of the rear cover.

Preferred embodiment according to the present utility model is additionally provided on the electrical connection cavity inner wall axially extending from its Welded limiting part；Also, it is equipped at position corresponding with the welded limiting part on the inner wall of the rear cover axially extending another One welded limiting slot.

The outer periphery of preferred embodiment according to the present utility model, the electrical connection cavity of the stator module is provided with welding Slot；Also, the rear cover is less than in the internal volume that position corresponding with the welding groove is provided with welding bar and the welding groove Or the volume equal to the welding bar.

Preferred embodiment according to the present utility model, cast gate setting of the rear cover by being integrally formed, when injection molding In the center of the rear cover；Also, the rear cover is being equipped with cast gate with the corresponding position on the cast gate apparent surface Compensate boss.

One end of preferred embodiment according to the present utility model, the controller forms counterface, so that when described When controller is mounted to the stator module, which resists the backstop side of the lateral Displacement part, to make institute Stating controller will not shift.

Preferred embodiment according to the present utility model, the controller include the printing electricity for being disposed with electronic component thereon Road plate, and the controller includes: pin holes and inserting-plate hole, is respectively intended to and the power supply and signal pin and the line Inserted sheet cooperation is enclosed, soldering is convenient for；Screw hole, the screw hole are U-lag holes, are used to cooperate with the fixed column.

Preferred embodiment according to the present utility model, the controller has the non-copper foil region for being not provided with copper foil, described Non- copper foil region includes: to be respectively intended to and the fixed column, axial limiting part and lateral limit in the one side of printed circuit board Fixed column mating surface, axial limiting part mating surface and the lateral Displacement part mating surface of position part cooperation；And in printed circuit board On opposite another side for the coiled hair pressed surface that cooperates with the fastening connection piece.

Preferred embodiment according to the present utility model, the non-copper foil region further include reserving in controller neighboring The non-copper foil area in edge.

On the other hand, the utility model proposes a kind of electronic water pumps, the control including being described previously for electronic water pump Device mounting structure.

The electronic water pump of the utility model design, axial space is small, stock utilization is high, and does not need additional part Baffle.

Detailed description of the invention

Above and other feature and advantage of the utility model will become through the following detailed description taken in conjunction with the accompanying drawings more Add obvious, and the following description and drawings being given for example only property purpose, rather than limits the utility model in any way Range, in which:

Figure 1A is the integrally-built schematic exploded perspective view of the electronic water pump of the utility model；

Figure 1B is assembled in the perspective diagram of the electronic water pump of the utility model together；

Fig. 2 is the schematic exploded perspective view of the controller mounting structure of the electronic water pump of the utility model；

Fig. 3 A is the perspective diagram for showing the electrical connection cavity of plastic packaging stator component；

Fig. 3 B is the perspective diagram for showing another visual angle of electrical connection cavity of plastic packaging stator component；

Fig. 4 is the structural schematic diagram of the controller tow sides of the electronic water pump of the utility model；

Fig. 5 is the schematic top plan view of the electronic water pump of the utility model；

Fig. 6 is the schematic cross-sectional view of electronic water pump line A-A along Fig. 5 of the utility model；

Fig. 7 is the schematic cross-sectional view of electronic water pump line B-B along Fig. 5 of the utility model；

Fig. 8 is the partial enlargement diagram in Fig. 5 at I；

Fig. 9 is the perspective diagram of the rear cover of the electronic water pump of the utility model；

Figure 10 is the partial enlargement diagram in Fig. 5 at III；

Figure 11 is the elevational schematic view of the electronic water pump of the utility model, and wherein rear cover is hidden with controller；

Figure 12 is the partial enlargement diagram along Fig. 5 at II, and wherein tapping screw is hidden；

Partial enlargement diagram in Figure 13 Fig. 5 at I；

Figure 14 is the partial enlargement diagram in Fig. 7 at IV；

Figure 15 is the schematic top plan view of the controller of the electronic water pump of the utility model；

Figure 16 is the schematic top plan view of the electronic water pump of the utility model, and wherein rear cover is hidden.

Reference signs list

B tapping screw

C is electrically connected room

100 pump shells

200 motors

201 power supplys and signal pin

202 coil inserted sheets

210 stator modules

211 fixed columns

212 lateral Displacement parts

212a First terrace

212b second step face

212c backstop side

2121 grooves

213 axial limiting parts

214 welded limiting parts

215 welding grooves

220 rotor assembly

300 controllers

300a counterface

301 pin holes

302 inserting-plate holes

303U type groove

310 non-copper foil regions

310a fixed column mating surface

310b lateral Displacement column mating surface

310c axial limiting column mating surface

310e coiled hair pressed surface

400 rear covers

401 compensation boss

402 cast gates

403 welded limiting slots

404 welding bars

500 washers

600 resilient cushions

Specific embodiment

Aforementioned and other technology contents, feature and technical effect in relation to the utility model refer to attached drawing in following cooperation It can clearly be presented in the detailed description of embodiment.

Explanation includes various specific details to help the understanding below, but these details should be considered as being only exemplary 's.In addition, for clarity and brevity, the description to well known function and construction may be omitted.

Through the description and claims of present specification, word " comprising " and modification mean " including but unlimited In ", and be not intended to exclude other component, entirety or step.It should be understood that singular " one ", "one" and "the" packet Reference containing plural number, unless context clearly separately has miscellaneous stipulations.In the present invention, statement "or" includes to enumerate together Word any or all combination.For example, " A or B " may include A or B, or it may include both A and B.

In addition, although each element of the utility model may be described using the statement of such as " first " and " second ", But they are not intended to limit mutually corresponding element.Above-mentioned statement is not intended to the sequence or importance for limiting phase respective element. Above-mentioned statement is for distinguishing a component and another component, without departing substantially from the scope of the utility model, " the One component " can be written as " second component ", and similarly, " second component " can be written as " first component ".

When element is mentioned as " connected " to another element, this may mean that it is connected directly to other elements, There may be intermediary elements.

The orientation word such as the "upper" mentioned in text, "lower", "left", "right", " clockwise ", " counterclockwise " be only used for relative to The displaying of attached drawing indicates relative positional relationship, and after the absolute position for being described object changes, then relative positional relationship may also Correspondingly change.

1A to 16 illustrates the specific structure and working principle of the electronic water pump of the utility model with reference to the accompanying drawing.

The integrally-built schematic exploded perspective view of the electronic water pump of the utility model as shown in Figure 1A, the utility model The electronic water pump of description includes pump shell 100, motor 200, controller 300 and rear cover 400 etc..

Wherein, motor 200 is DC brushless motor, is driven using no Hall self-inducting controller, and motor 200 includes modeling Seal stator module 210 and 220 two parts of vane rotor component.

Plastic packaging stator component 210 by using a kind of thermoplastic macromolecule material by coil, skeleton, iron core, motor shaft, insert Together, they are spaced one from insulation to the parts such as needle plastic packaging, and fix its respectively plastic packaging stator component 210 is consequently formed in position. When injection molding, iron core inner cavity central hole structure is made full use of, motor shaft is arranged in the water chamber for wherein forming an opening.

Rotor assembly 220 be also be molded to connect magnet, iron core by using a kind of thermoplastic macromolecule material, and One-pass molding goes out bearing, impeller shape structure.Rotor assembly 220 is directly charged into the water chamber of the opening of plastic packaging stator component 210 It is interior, that is, form pump motor.In general, can add and rub in its front and back end to increase by 220 front and back end friction durability of rotor assembly Gasket 500, as shown in perspective diagram Figure 1B of the electronic water pump of the utility model for indicating to fit together.

In this way, the axial one end of plastic packaging stator component 210 is the water chamber of opening, main function is to accommodate rotor assembly 220 And pump working liquid medium.The auto-flowability of liquid medium can make well it reach motor shaft and bearing clearance, turn Sub-component outside, to play the role of cooling rotor, lubrication bearing.

The axial other end of plastic packaging stator component 210 extends to form electrical connection cavity, and the controller 300 of electronic water pump is mounted on Be electrically connected cavity C in, the rear cover 400 of electronic water pump be electrically connected cavity C ultrasonic bonding, become be electrically connected room C, with reference to Figure 13 To 14.Cavity is electrically connected by a kind of thermoplastic macromolecule material injection molding to be isolated with water chamber, so that working solution State medium will not be circulated to electrical connection room C.This isolation takes full advantage of skeleton and enameled wire height dimension, realizes motor shaft To compact effect.

Fig. 2 is the schematic exploded perspective view of the controller mounting structure of the electronic water pump of the utility model.

The controller mounting structure of the electronic water pump of the utility model, as shown, it specifically includes that plastic packaging stator component 210 in the electrical connection side room C setting welding groove, one or more limited posts or limiting slot, three or three in a circumferential direction A above axial limiting column, one or more fixed columns, one or more lateral Displacement columns, water pump external power supply and signal pin 201, coil inserted sheet (U/V/W inserted sheet) 202.

External power supply is connected with signal pin 201 with controller 300, to voltage and letter needed for providing controller 300 Number input.Coil block is connected by coil inserted sheet 202 with controller U/V/W inserting-plate hole 302.Its coil inserted sheet 302 is as note Plastic is molded together with coil, external power supply, power supply and signal pin 201 and other mold inserts to plastic packaging stator component 210.Electricity Source and signal pin 201 are located at coil inserted sheet 202 is electrically connected cavity both sides, near symmetrical relationship.Power supply and signal are inserted Controller power source chip part and control chip can be effectively partially separated with coil inserted sheet positioned at room two sides are electrically connected by needle, It reduces controller hardware and is laid out difficulty, make controller that there is good Electro Magnetic Compatibility (EMC), to facilitate setting for controller Meter.

Fig. 3 A is the perspective diagram for showing the electrical connection cavity of plastic packaging stator component；Fig. 3 B is to show plastic packaging stator component Electrical connection cavity another visual angle perspective diagram.

At least one fixed column 211 is arranged in electrical connection cavity inner wall, and 211 one end of fixed column and plastic packaging stator component 210 are molten It is connected in one, the other end is equipped with hollow hole.Also the partial enlargement diagram of Figure 12 is referred to, hollow orifice part design has guide angle Degree, the hollow hole will be used cooperatively with tapping screw B, prevent its axial movement for static controller 300.It is noticeable It is that the end face of fixed column 212 and the end face of axial limiting column 213 are in same plane height, is used for common support and control device 300 The same side.

It is electrically connected cavity inner wall and at least three axial limiting columns 213 is set, four are used in preferred illustrated embodiment The design of axial limiting column 213.Also with reference to the elevational schematic view of the electronic water pump of Figure 11, wherein rear cover is hidden with controller. The angle that adjacent axial limiting column 213 is formed in circumference is preferably uniform using limited post axial in 360 ° less than 180 ° The scheme of distribution, for example, two adjacent axial limiting parts are formed in a circumferential direction about the center of the electrical connection cavity Angle be followed successively by 90 degree, 120 degree, 30 degree, 120 degree.The outer periphery of the electrical connection cavity of plastic packaging stator component 210 is provided with weldering The axial height of access slot 215, axial limiting column 213 is greater than welding groove 215 2~6mm of edge, preferably 4mm, convenient for assembly It takes when controller 300.

Plastic packaging stator component 210 is electrically connected cavity inner wall and at least one lateral Displacement column 212 is arranged, and is preferably implemented in diagram The design of two lateral Displacement columns 212 is used in example.L-type is presented in 212 profile of lateral Displacement column, and end face is designed as Step-edge Junction Structure.As Figure 13 Fig. 5 in shown in partial enlargement diagram at I, the wherein First terrace 212a of lateral Displacement column 212 and solid The face height of fixed column 211 is identical or end face lower than fixed column 211, second step face 212b protrude the end of fixed column 211 The level in face and pcb board (printed circuit board) thickness for being greater than controller 300, it is laterally fixed when being installed for controller 300 Position.

It is arranged fluted 2121 between the First terrace 212a and second step face 212b of lateral Displacement column 212, it should The problem of to controller Assembly Interference can be effectively reduced because of injection molding burr in place's setting groove.

Fig. 4 is the structural schematic diagram of 300 tow sides of controller of the electronic water pump of the utility model.300 base of controller In pcb board as carrier in the electronic component for arranging corresponding function above, with non-copper foil region 310, design is pre- on one side Stay the mating surface with each limit cylinder cooperation, such as fixed column mating surface 310a, lateral Displacement column mating surface 310b, axial limit Position column mating surface 310c etc., another side design have tapping screw coiled hair pressed surface 310e.

Meanwhile pad hole is set at corresponding contact pin cooperation, that is, U/V/W inserting-plate hole 302 and positive/negative, PWM (pulse Width modulated), signal and feedback pin holes 301, convenient for contact pin protrusion pcb board face carry out soldering.

In addition, the space that 0~1mm is not provided with copper foil region is reserved at 300 edge of controller, to increase electronic component and control The creepage distance at 300 edge of device processed, can reduce the fit clearance of controller 300 Yu rear cover 400 in this way.

Fig. 5 is the schematic top plan view of the electronic water pump of the utility model；Fig. 6 is the electronic water pump of the utility model along Fig. 5 The schematic cross-sectional view of middle line A-A；Fig. 7 is the schematic cross-sectional view of electronic water pump line B-B along Fig. 5 of the utility model；Fig. 8 is Partial enlargement diagram in Fig. 5 at I specifically illustrates the welded connecting of rear cover Yu plastic packaging stator component.

The outer periphery of the electrical connection cavity of plastic packaging stator component 210 is provided with welding groove 215, and rear cover 400 is corresponding Position is equipped with welding bar 404, and 215 internal volume of welding groove is less than or equal to the volume of the welding bar 404 of rear cover 400.Rear cover 400 It is connect by ultrasonic welding process mode with plastic packaging stator component 210, forms the space of a sealing, guard bit is in the inner Controller 300 from foreign, steam etc. damage.It is provided between rear cover 400 and plastic packaging stator component 210 after having welded The gap of 0.1mm melts weldering body product when welding bar and is greater than slot inner volume, and plastics will overflow welding groove, between rear cover and plastic packaging stator Flash is generated, observes whether have flash that can tentatively sub-elect welding in gap reliable in production process.

By 215 inside of welding groove, contact pin height protrudes 211 end of fixed column for water pump external power supply and the design of signal pin 201 2~4mm of face is added controller PCB thickness, is connected after controller 300 to be assembled using hole location on soldering process and controller PCB It connects.The contact pin other end is also fixed in plastic packaging stator 210 injection molding of component with high molecular material simultaneously, is matched with external connector It closes and uses.

With external connector auxiliary section be arranged a relief hole 203, with reference to Fig. 7 of Figure 14 IV locate partial enlargement illustrate Figure, the relief hole are connected with room C is electrically connected, prevent the unbalanced situation of inner and outer air pressure, do not access in water pump especially When external connector, relief hole makes to be electrically connected room C and external pressure balances.Relief hole sectional area and relief hole depth value ratio It is designed as≤0.15, and prevents outer surface tension >=0.0728N/m liquid from entering electrical connection room.

Fig. 9 is the perspective diagram of the rear cover of the electronic water pump of the utility model.Rear cover 400 substantially has circular cross-section wheel It is wide.The inner wall of rear cover 400 is equipped with the ultrasonic bonding limiting slot 403 of at least one (preferably two) axial direction, plastic packaging stator group The electrical connection cavity corresponding position of part 210 is equipped at least one ultrasonic bonding limit rib or limited post, shown in Fig. 3 A or 3B The design of two ultrasonic bonding limited posts, i.e. diagram limited post 214 and 212 are used in the preferred embodiment in the utility model.Afterwards After both ultrasonic bonding limiting slot and the ultrasonic bonding limited post of plastic packaging stator component 210 of lid 400 cooperate, to rear cover Position-limiting action is generated with being electrically connected on the circumference of cavity for plastic packaging stator component, can effectively reduce ultrasonic bonding because of circumferencial direction Welding bar unevenly leads to the problem of failure welding.

Figure 10 is the partial enlargement diagram in Fig. 5 at III, shows the sectional view of rear cover center.Rear cover 400 is preferred Ground uses PPS (polyphenylene sulfide) material, and the center of rear cover 400, rear cover is arranged in 402 position of cast gate when rear cover 400 forms The position setting cast gate that 400 back sides correspond to cast gate 402 compensates boss 401, Splaying at Gates problem when ultrasonic bonding is effectively reduced. 402 position of cast gate is arranged at rear cover center, and PPS stream is projected from cast gate 402, compensates boss 401 through rear cover cast gate after injection Material equal wall thickness uniformly is flowed to circumferencial direction, mould inside air gap is equably spread around, is finally arranged by rear cover part edge Air drain discharge.Rear cover part weld mark position is also at part edge, and part material density CONSENSUS is higher after Injection hold pressure. Gate location setting compensation boss 401 can increase cast gate and go out wall thickness, because density of material is below at plastic material moulding cast gate Other positions, the cast gate back side, which increases cast gate compensation boss, can increase wall thickness, thus increase intensity.If cast gate is placed on rear cover part Surrounding, when PPS stream in cast gate by projecting, stream can not equably be spread around, and be stopped due to penetrating cast gate without boss, material Stream is projected and can not can be greatly increased with the preferably welding of subsequent injection material, the weld mark quantity generated in this way, reduces part strength, Entire surface is easy to appear after ultrasonic bonding the phenomenon that damaged gas leakage, reduces the leakproofness of water pump.

Figure 15 is the schematic top plan view of the controller of the electronic water pump of the utility model；Figure 16 is the electronics of the utility model The schematic top plan view of water pump, wherein rear cover is hidden.When controller 300 is installed, controller 300 is filled by pin holes 301,302 Enter plastic packaging stator component 210, clockwise installs tapping screw B to screw hole.Wherein, when tapping screw B is rotated clockwise, One clockwise power as shown in the figure is generated to controller 300, causes controller 300 to deviate along clockwise direction, joins Figure 13 is examined, the positive right side of face of controller 300 is equipped with the counterface 300a, counterface 300a cooperated with lateral Displacement column 212 The backstop side 212c for touching the lateral Displacement column 212 of plastic packaging stator component 210, makes controller 300 not generate offset.Control The U-type groove 303 as screw hole of device 300 can effectively avoid controller because width tolerance and counterface touch plastic packaging and determine Sub-component lateral Displacement column and the hole location interference problem generated.As shown, placing controller 300 to axial limiting column 213 On, and 300 edge of controller is tightly attached on lateral Displacement column 212, and the slot length of U-type groove 303 can be effectively avoided Because of assembly interference problem caused by controller width tolerance.

The above is only the exemplary embodiment of the utility model, the protection model rather than limited the present invention It encloses, the protection scope of the utility model is determined by the attached claims.One of ordinary skill in the art will appreciate that It, can be to described herein various in the case where without departing substantially from the scope of the utility model as defined by appended claims Embodiment makes changes and improvements.In addition, for clarity and brevity, may omit and be retouched to well known function and construction It states.

Finally, it is also to be appreciated that certain technical characteristics in embodiment may for solving specific technical problem Be not required in that, so as to without or omit solution or technical side of these technical characteristics without influence technique problem The formation of case；Moreover, the feature of one embodiment, element and/or function can be with the spies of other one or more embodiments Sign, element and/or function be suitably combined with each other, combination perhaps cooperation unless the combination, combination or cooperate obviously can not be real It applies.

Claims (23)

1. a kind of controller mounting structure for electronic water pump, the electronic water pump include pump shell including stator module With can relative to stator module rotate rotor assembly motor and for controlling the controller of motor, which is characterized in that

The one end of the stator module in the axial direction and the rotor assembly cooperate, and the other end is extended to form for receiving the control The electrical connection cavity of device processed and the electrical connection cavity is closed by a rear cover；

And the stator module include be arranged in it is axially extending from its on the electrical connection cavity inner wall:

At least one fixed column, end are equipped with mounting hole to allow the controller to be fastenedly connected to the stator module；

The end surface of at least three axial limiting parts, end surface and the fixed column is in same plane height, is used for The axially position of the controller；And

At least one lateral Displacement part has the end surface higher than the level, for the lateral fixed of the controller Position.

2. the controller mounting structure according to claim 1 for electronic water pump, which is characterized in that the stator module Be formed as single-piece including iron core, coil, and by injection molding.

3. the controller mounting structure according to claim 2 for electronic water pump, which is characterized in that the electrical connection chamber It is additionally provided on internal wall:

Power supply and signal pin, for being connected with external power supply and signal input；With

Coil inserted sheet, for being connected with the coil of the motor；

The power supply and signal pin and the coil inserted sheet pass through injection molding plastic packaging on the stator module.

4. the controller mounting structure according to claim 3 for electronic water pump, which is characterized in that the power supply and letter Number contact pin and the coil inserted sheet, which are located at, described is electrically connected cavity two sides and the center relative to the electrical connection cavity Generally it is arranged symmetrically.

5. the controller mounting structure according to claim 3 for electronic water pump, which is characterized in that the lateral Displacement The end of part has step shape and includes:

First terrace is not higher than the end surface of the fixed column；

Second step face is higher than the end surface of the fixed column；With

Backstop side axially extends between the First terrace and second step face.

6. the controller mounting structure according to claim 5 for electronic water pump, which is characterized in that the lateral Displacement Difference in height between the second step face of part and the end surface of the fixed column is greater than the thickness of the controller.

7. the controller mounting structure according to claim 5 for electronic water pump, which is characterized in that the lateral Displacement Part is arranged fluted between the First terrace and the second step face.

8. the controller mounting structure according to claim 5 for electronic water pump, which is characterized in that the lateral Displacement The quantity of part is two.

9. the controller mounting structure according to claim 3 for electronic water pump, which is characterized in that the fixed column Mounting hole is hollow and its opening is provided with guiding surface, to install fastening connection piece；

Also, the fixed column is cylindrical.

10. the controller mounting structure according to claim 3 for electronic water pump, which is characterized in that adjacent two Axial limiting part is less than 180 degree about the angle that the center of the electrical connection cavity is formed in a circumferential direction.

11. the controller mounting structure according to claim 10 for electronic water pump, which is characterized in that the axial limit Position part is evenly distributed in a circumferential direction about the center of the electrical connection cavity.

12. the controller mounting structure according to claim 10 for electronic water pump, which is characterized in that the axial limit The quantity of position part is four.

13. the controller mounting structure according to claim 12 for electronic water pump, which is characterized in that adjacent two Axial limiting part is followed successively by 90 degree, 120 degree, 30 about the angle that the center of the electrical connection cavity is formed in a circumferential direction Degree, 120 degree.

14. being used for the controller mounting structure of electronic water pump according to any one of claim 3 to 13, feature exists In one end of the power supply and signal pin reaches on the outside of the electrical connection cavity, to be used cooperatively with external connector；

Also, the stator module is provided on the surface cooperated with the outside connector is electrically connected what cavity was connected to described Relief hole is balanced for the electrical connection cavity and external pressure.

15. the controller mounting structure according to any one of claim 1 to 13 for electronic water pump, feature exist In the rear cover is combined together with the stator module by ultrasonic bonding；

Also, axially extending welded limiting slot is equipped at position corresponding with the fixed column on the inner wall of the rear cover.

16. the controller mounting structure according to claim 15 for electronic water pump, which is characterized in that the electrical connection It is additionally provided on cavity inner wall from its axially extending welded limiting part；

Also, another axially extending welding is equipped at position corresponding with the welded limiting part on the inner wall of the rear cover Limiting slot.

17. the controller mounting structure according to claim 15 for electronic water pump, which is characterized in that the stator pack The outer periphery of the electrical connection cavity of part is provided with welding groove；

Also, the rear cover is less than in the internal volume that position corresponding with the welding groove is provided with welding bar and the welding groove Or the volume equal to the welding bar.

18. the controller mounting structure according to claim 15 for electronic water pump, which is characterized in that the rear cover is logical It crosses and is integrally formed, the center of the rear cover is arranged in cast gate when injection molding；

Also, the rear cover is being equipped with cast gate compensation boss with the corresponding position on the cast gate apparent surface.

19. being used for the controller mounting structure of electronic water pump according to any one of claim 5 to 13, feature exists In one end of the controller forms counterface, so that this is matched when the controller is mounted to the stator module It closes end face and resists the backstop side of the lateral Displacement part, so that the controller be made not shift.

20. being used for the controller mounting structure of electronic water pump according to any one of claim 5 to 13, feature exists In the controller includes the printed circuit board for being disposed with electronic component thereon, and the controller includes:

Pin holes and inserting-plate hole are respectively intended to cooperate with the power supply and signal pin and the coil inserted sheet, be convenient for Soldering；

Screw hole, the screw hole are U-lag holes, are used to cooperate with the fixed column.

21. the controller mounting structure according to claim 20 for electronic water pump, which is characterized in that the controller With the non-copper foil region for being not provided with copper foil, the non-copper foil region includes:

It is respectively intended to consolidate with what the fixed column, axial limiting part and lateral Displacement part cooperated in the one side of printed circuit board Fixed column mating surface, axial limiting part mating surface and lateral Displacement part mating surface；And

On the opposite another side of printed circuit board for the coiled hair pressed surface that cooperates with fastening connection piece.

22. the controller mounting structure according to claim 21 for electronic water pump, which is characterized in that the non-copper foil Region further includes the non-copper foil area in edge reserved in controller neighboring.

23. a kind of electronic water pump, which is characterized in that it include according to claim 1 to described in any one of 22 be used for electronics The controller mounting structure of water pump.