CN208539724U - Electronic water pump - Google Patents

Electronic water pump Download PDF

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Publication number
CN208539724U
CN208539724U CN201821059817.6U CN201821059817U CN208539724U CN 208539724 U CN208539724 U CN 208539724U CN 201821059817 U CN201821059817 U CN 201821059817U CN 208539724 U CN208539724 U CN 208539724U
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CN
China
Prior art keywords
water pump
rear end
end cap
bearing bracket
sink
Prior art date
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Active
Application number
CN201821059817.6U
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Chinese (zh)
Inventor
曹锴
葛笑
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Welling Auto Parts Co Ltd
Original Assignee
Guangdong Welling Motor Manufacturing Co Ltd
Midea Welling Motor Technology Shanghai Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Welling Motor Manufacturing Co Ltd, Midea Welling Motor Technology Shanghai Co Ltd filed Critical Guangdong Welling Motor Manufacturing Co Ltd
Priority to CN201821059817.6U priority Critical patent/CN208539724U/en
Application granted granted Critical
Publication of CN208539724U publication Critical patent/CN208539724U/en
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Abstract

The utility model discloses a kind of electronic water pumps, electric machine assembly including being equipped with drive end bearing bracket (1) and rear end cap (2), the electric machine assembly further includes water proof set (3) between the drive end bearing bracket (1) and rear end cap (2) and the rotor (5) being sheathed in the water proof set (3), the drive end bearing bracket (1), the rear end cap (2), the water proof set (3) and the rotor (5) limit cleaning solution Circulation Area jointly, the rear end cap (2) is equipped with the back flush water inlet (28) for cleaning solution to be introduced to the cleaning solution Circulation Area.The electronic water pump of the utility model is by being arranged back flush water inlet on rear end cap exterior washings liquid to be introduced in the cleaning solution Circulation Area, to make electronic water pump have the function of reverse cleaning, the internal contamination of motor and water pump can be reduced, to prolong its service life.

Description

Electronic water pump
Technical field
The utility model relates to water pump technologies, and in particular, to a kind of electronic water pump.
Background technique
The electric machine assembly in electronic water pump for automobile on the market lacks internal washing function mostly, in electronic water pump through too long Can have the break flour that is formed due to parts friction after phase frequent use, in electric machine assembly or since water flow flows for a long time and The scale of formation, this pollutant can cause large effect to the working performance of electric machine assembly, be unfavorable for guaranteeing electronic water pump Stability and reliability, and will be greatly reduced the service life of electronic water pump.
Utility model content
In view of the above drawbacks of the prior art or insufficient, the utility model provides a kind of electronic water pump, can reduce electricity The pollution of thermomechanical components, advantageously ensures that the stability and reliability of electronic water pump, and is able to extend its service life.
To achieve the above object, the utility model provides a kind of electronic water pump, including being equipped with drive end bearing bracket and rear end cap Electric machine assembly, the electric machine assembly further include water proof set between the drive end bearing bracket and rear end cap and be sheathed on it is described every Rotor in water jacket, the drive end bearing bracket, the rear end cap, water proof set and the rotor limit clearly jointly Washing lotion Circulation Area, the rear end cap are equipped with the back flush water inlet for cleaning solution to be introduced to the cleaning solution Circulation Area.
Preferably, the rear end cap includes back shroud and connectivity structure, the back shroud be equipped with the back flush into The mouth of a river, the connectivity structure are connected to the cleaning solution Circulation Area and the back flush water inlet.
Preferably, the hollow sink being connected to the connectivity structure is formed in the back shroud, the hollow sink is set There is the groove sidewall opening as the back flush water inlet.
Preferably, the rear end cap further includes the bearing mounting groove being set on the front bulkhead of the back shroud and circular institute The circumferential sink of bearing mounting groove setting is stated, the circumferential direction sink is connected to the cleaning solution Circulation Area as the connectivity structure With the hollow sink.
Preferably, the cast member that the rear end cap is integrally formed.
Preferably, the back flush water inlet can switch between opening state or closed state.
Preferably, the back flush water inlet is equipped with dismountable screw thread nut cap.
Preferably, the drive end bearing bracket is equipped with the drive end bearing bracket through-hole as back flush water outlet.
Preferably, the rotor includes the armature spindle protruded into the bearing mounting groove, and the armature spindle is formed with Axially through central shaft hole, the bearing mounting groove is axially connected to the hollow sink.
Preferably, it is equipped between the drive end bearing bracket and water proof set and between the rear end cap and water proof set Sealing ring.
Back flush water inlet is provided on rear end cap in the electronic water pump of the utility model, when needing to electronic water pump In electric machine assembly when being cleaned, exterior washings liquid can be injected into cleaning solution Circulation Area by the back flush water inlet In, the cleaning to electric machine assembly is realized with this, to reduce the internal contamination of motor and water pump and prolong its service life.
Other features and advantages of the utility model will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is to be used to provide a further understanding of the present invention, and constitute part of specification, and following Specific embodiment be used to explain the utility model together, but do not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the electronic water pump in specific embodiment of the present utility model;
Fig. 2 is the cross-sectional view A-A of the electronic water pump in Fig. 1;
Fig. 3 is the cross-sectional view that the electronic water pump of the drive end bearing bracket equipped with drive end bearing bracket sink is used in Fig. 1;
Fig. 4 is the perspective view of the rear end cap of the electronic water pump in Fig. 1;
Fig. 5 is the front view of the rear end cap in Fig. 4;
Fig. 6 is the cross-sectional view B-B of the rear end cap in Fig. 5;
Fig. 7 is the cross-sectional view C-C of the rear end cap in Fig. 5;
Fig. 8 is the cross-sectional view D-D of the electronic water pump in Fig. 1;
Fig. 9 is the cross-sectional view E-E of the rear end cap in Fig. 5.
Description of symbols:
1 drive end bearing bracket, 2 rear end cap
3 water proofs cover 4 motor stators
5 rotor, 6 sealing ring
7 plane electric-controlled plate, 8 impeller
9 screw thread nut cap, 10 bearing
11 drive end bearing bracket inner casing, 12 front end cover housing
13 drive end bearing bracket sink, 14 drive end bearing bracket through-hole
21 back shroud, 22 bearing mounting groove
The circumferential sink of 23 peripheral wall notch section 24
25 hollow 26 sink front bulkheads of sink
27 sink aft bulkhead, 28 back flush water inlet
51 armature spindle, 52 central shaft hole
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can To be combined with each other.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is usually Be for direction shown in the drawings either for it is vertical, vertically or on gravity direction for each component mutual alignment Relationship description word.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
The utility model provides a kind of electronic water pump, and as shown in Figures 1 to 9, which includes being equipped with rear end cap 2 Electric machine assembly and plane electric-controlled plate 7.Wherein, rear end cap 2 includes back shroud 21, and plane electric-controlled plate 7 is installed on back shroud 21 On aft bulkhead, hollow sink 25 is formed in back shroud 21.The hollow sink 25 can be by injecting the coolant liquid circulated Quickly to take away the heat that plane electric-controlled plate 7 generates during the work time, i.e., hollow sink 25 is conducive to dissipating for plane electric-controlled plate 7 Heat.
As it can be seen that coolant liquid need not be directly during circulating since hollow sink 25 is formed in back shroud 21 Contact plane electric-controlled plate 7 can take away the heat of its generation, the risk that short circuit occurs in plane electric-controlled plate 7 be avoided, to guarantee Plane electric-controlled plate 7 can work normally in radiation processes.Further, since hollow sink 25 is specifically in plane electric-controlled plate 7 cooling structure, it is higher to the cooling efficiency of plane electric-controlled plate 7, plane electric-controlled plate 7 can be made to be constantly in suitable temperature Lower work, to greatly improve the job stability and reliability of electronic water pump.
Preferably, hollow sink 25 can be set as being parallel to each other with plane electric-controlled plate 7, is increased in hollow sink 25 with this Coolant liquid and plane electric-controlled plate 7 heat transfer area, to further increase the radiating rate to plane electric-controlled plate 7.
In addition, the axis projection profile of plane electric-controlled plate 7 may make to be located in the axis projection profile of hollow sink 25, from And further increase the heat transfer area of the coolant liquid and plane electric-controlled plate 7 in hollow sink 25.
Specifically, hollow sink 25 may include sink front bulkhead 26 and sink aft bulkhead 27.At this point, sink front bulkhead 26 is made For the aft bulkhead as back shroud 21 of front bulkhead and sink aft bulkhead 27 of back shroud 21.It under such configuration, is the hollow water of increase The heat transfer rate of coolant liquid and plane electric-controlled plate 7 in slot 25, can set weak wall construction for sink aft bulkhead 27, but at this time Need to guarantee that rear end cap 2 has enough bonding strengths to improve Assembly stability, therefore can be by the wall thickness of sink front bulkhead 26 It is preferably arranged to the wall thickness greater than sink aft bulkhead 27.
Since hollow sink 25 is that can be formed in back shroud 21 specifically in the cooling structure of plane electric-controlled plate 7 For irregular structure.Hereby, rear end cap 2 is preferably integrally formed using casting technique, and can use aluminium alloy or cast iron Equal materials are cast.In casting, the desired structure that the fillers such as sand core fill out hollow sink 25 can be first passed through, to rear end Filler is crushed and is taken out after forming by lid 2, to form above-mentioned hollow sink 25 in the back shroud of rear end cap 2.
It should be noted that realize circulating for the coolant liquid in hollow sink 25, need to connect hollow sink 25 It is logical one or more for driving the power sources of coolant flow, the power source is either internal motivation in electronic water pump Source, the external power supply being also possible to outside electronic water pump.In the present invention, preferably by the internal motivation in electronic water pump Source circulates power provide the coolant liquid in hollow sink 25.It is highly preferred that the internal power source can be electronic water Impeller 8 in pump.
In other words, the electronic water pump of the utility model can be realized self cooling while participating in the cooling to external system But.This is from the cooling that cooling procedure may include to the cooling procedure of plane electric-controlled plate 7 and to motor stator and/or rotor Process hereinafter can specifically illustrate different cooling procedures by different embodiments.
In one embodiment, as shown in figure 3, the electric machine assembly in electronic water pump further includes drive end bearing bracket 1, is located at front end The motor stator 4 that water proof between lid 1 and rear end cap 2 covers 3 and is set in drive end bearing bracket 1 and is set in outside water proof set 3.Its In, the peripheral wall of drive end bearing bracket 1 is equipped with the drive end bearing bracket sink 13 of wound motor stator 4, and drive end bearing bracket 1 is connect with rear end cap 2.At this point, preceding One end of end cap sink 13 can be connected to the drive end bearing bracket through-hole 14 being set on drive end bearing bracket 1, and the other end can be connected to hollow sink 25.When When impeller 8 rotates, coolant liquid can generate mobilization dynamic to pass sequentially through drive end bearing bracket through-hole 14, drive end bearing bracket sink 13 and hollow Sink 25, to be cooled down to motor stator 4 and plane electric-controlled plate 7.
In addition, rear end cap 2 includes being set on the front bulkhead of back shroud 21 with the bearing mounting groove 2 for installing bearing 10 And it is set in the rotor 5 in water proof set 3.Armature spindle 51 in the rotor 5 be formed with axially through center Axis hole 52, one end of the armature spindle 51 wear even impeller 8, the other end and wear connecting shaft and hold 10 and protrude into bearing mounting groove 2, bearing installation Slot 2 is preferably arranged to be connected to hollow sink 25.At this point, the coolant liquid in above-mentioned hollow sink 25 can continue to flow to bearing It in mounting groove 2, and is flowed out by the central shaft hole 52 of armature spindle 51, thus by caused by motor stator 4 and plane electric-controlled plate 7 Heat is taken out of outside electronic water pump.
It can be seen that in the present embodiment, coolant liquid can followed by drive end bearing bracket through-hole 14, drive end bearing bracket sink 13, The central shaft hole 52 of hollow sink 25, bearing mounting groove 2 and armature spindle 51 is protected to form complete cooling cycle water route The lasting heat dissipation to motor stator 4 and plane electric-controlled plate 7 has been demonstrate,proved, the job stability and reliability of electronic water pump are improved.
Preferably, double-layer shell structure can be set by drive end bearing bracket 1.At this point, the drive end bearing bracket 1 includes 11 He of drive end bearing bracket inner casing Front end cover housing 12, the interlayer cavity between the drive end bearing bracket inner casing 11 and front end cover housing 12 are formed as above-mentioned drive end bearing bracket sink 13.And further, it can be connected by connected support structure between drive end bearing bracket inner casing 11 and front end cover housing 12, to guarantee double The intensity of layer shell structure.
It should be noted that since drive end bearing bracket sink 13 is specifically in the cooling structure of motor stator 4, in front end Irregular structure is formed as in lid 1, therefore drive end bearing bracket 1 and the manufacturing method of rear end cap 2 are relatively similar.In other words, have upper The drive end bearing bracket 1 for the double-layer shell structure stated preferably is integrally formed using casting technique, and can be using aluminium alloy or cast iron etc. Material is cast.In casting, the desired structure that the fillers such as sand core fill out drive end bearing bracket sink 13 can be first passed through, to front end Filler is crushed and is taken out after forming by lid 1, to form above-mentioned drive end bearing bracket sink 13 in drive end bearing bracket 1.
In another embodiment, as shown in Fig. 2, electric machine assembly may include drive end bearing bracket 1, be located at drive end bearing bracket 1 and rear end The rotor 5 that water proof between lid 2 covers 3 and is sheathed in water proof set 3.Wherein, drive end bearing bracket 1, rear end cap 2, water proof set 3 with And rotor 5 limits coolant liquid Circulation Area jointly, is equipped in rear end cap 2 for being connected to coolant liquid Circulation Area and hollow at this time The connectivity structure of sink 25.
Preferably, rear end cap 2 includes being set on the front bulkhead of back shroud 21 with the bearing installation for installing bearing 10 Slot 22 and the circumferential sink 24 being arranged around the bearing mounting groove 22.At this point, circumferential sink 24 can be as above-mentioned connection Structure is to be connected to coolant liquid Circulation Area and hollow sink 25.It should be noted that connectivity structure can have other structures form, no It is only limitted to above-mentioned circumferential sink 24.
In addition, can be equipped with drive end bearing bracket through-hole 14 on drive end bearing bracket 1, the armature spindle 51 of rotor 5 can be formed with to be passed through along axial direction The central shaft hole 52 worn, one end of the armature spindle 51 wears even impeller 8 and the other end wears connecting shaft and holds 10 and protrude into bearing mounting groove 22 In, bearing mounting groove 22 can axially be connected to hollow sink 25.
In the rotary course of impeller 8, coolant liquid can generate mobilization dynamic to pass sequentially through drive end bearing bracket through-hole 14, cooling Liquid Circulation Area, circumferential sink 24 and hollow sink 25, and flowed out outside electronic water pump from the central shaft hole 52 in armature spindle 51, thus Circulating cooling is carried out to rotor 5 and plane electric-controlled plate 7.
For the circulation flow rate for accelerating coolant liquid, peripheral wall notch section can be set in the groove sidewall of bearing mounting groove 22 23, which can directly be connected to circumferential sink 24 and central shaft hole 52.In other words, before coolant liquid passes sequentially through After end cap through-hole 14, coolant liquid Circulation Area and circumferential sink 24, part coolant liquid can pass sequentially through hollow sink 25 and rotor Central shaft hole 52 in axis 51 and flow out outside electronic water pump, another part coolant liquid then can directly be entered by peripheral wall notch section 23 Central shaft hole 52 is to flow out.
In another embodiment, in conjunction with Fig. 2 and Fig. 3, when impeller 8 is rotated to drive coolant liquid to enter drive end bearing bracket through-hole After 14, part coolant liquid can pass sequentially through coolant liquid Circulation Area, circumferential sink 24 and hollow sink 25, and from armature spindle 51 Central shaft hole 52 flow out electronic water pump outside.Another part coolant liquid can pass sequentially through drive end bearing bracket sink 13, hollow sink 25, Bearing mounting groove 2, and flowed out outside electronic water pump from the central shaft hole of armature spindle 51 52.
As it can be seen that in the present embodiment, electronic water pump from cooling procedure include to motor stator 4,5 and of rotor The cooling of plane electric-controlled plate 7, to improve the job stability and reliability of electric machine assembly and plane electric-controlled plate 7.
In another embodiment, as shown in Figure 8 and Figure 9, electronic water pump further include be set to it is reversed on rear end cap 2 Water inlet 28 is rinsed, and above-mentioned coolant liquid Circulation Area can be used as the use of cleaning solution Circulation Area.At this point, back flush water inlet 28 for introducing the cleaning solution Circulation Area for cleaning solution to realize the cleaning to rotor 5.
As it can be seen that under the normal operating conditions of electronic water pump in the present embodiment, coolant liquid Circulation Area can be used in pair Electronics rotor 5 carries out cooling heat, and under the cleaning state of the electronic water pump, coolant liquid Circulation Area potentially acts as wash liquid stream Logical area uses, and exterior washings liquid is introduced to the wash liquid stream by the back flush water inlet 28 by being set on rear end cap 2 In logical area, so that electronic water pump be made to have both from cooling and reverse cleaning function, its service life is effectively extended.
Specifically, back flush water inlet 28 can be arranged on back shroud 21, at this time the connectivity structure energy on rear end cap 2 It is enough connected to cleaning solution Circulation Area and back flush water inlet 28, guarantees that exterior washings liquid can smoothly enter into cleaning solution Circulation Area To realize the cleaning to rotor 5.
Further, the hollow sink 25 on back shroud 21 is open equipped with groove sidewall, and groove sidewall opening can be used as above-mentioned Back flush water inlet 28.Even if structure is also relatively simple as it can be seen that adding back flush water inlet 28 on back shroud 21 It is single, it can be equally made up of casting technique, not will increase excessive production cost.
Further, since electronic water pump is not necessarily to external cleaning solution during from cooling, therefore reversed during from cooling Closed state should be able to be switched to by rinsing water inlet 28, and when electronic water pump is cleaned, back flush can be intake Mouth 28 reopens.To enable back flush water inlet 28 to be switched fast under open or closed state, can reversely rush It washes on water inlet 28 and dismountable screw thread nut cap 9 is set.When electronic water pump is in normal operating conditions, screw thread nut cap 9 is screwed It, can be elastic to open reversed punching by screw thread nut cap 9 when electronic water pump is in cleaning state to be closed back flush water inlet 28 Wash water inlet 28.
For the electronic water pump in the utility model, no matter it is in normal operating conditions or cleaning state, is required to protect Demonstrate,prove the leakproofness of its privileged site.Specifically, can drive end bearing bracket 1 and water proof set 3 between, rear end cap 2 and water proof set 3 between and Sealing ring 6 is arranged in the junction of drive end bearing bracket 1 and rear end cap 2.
Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail in conjunction with attached drawing above Detail in above embodiment can be to the skill of the utility model in the range of the technology design of the utility model Art scheme carries out a variety of simple variants, these simple variants belong to the protection scope of the utility model.
It is further to note that specific technical features described in the above specific embodiments, in not lance It in the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the utility model is to each No further explanation will be given for the possible combination of kind.
In addition, any combination can also be carried out between a variety of different embodiments of the utility model, as long as it is not disobeyed The thought for carrying on the back the utility model, equally should be considered as content disclosed in the utility model.

Claims (10)

1. a kind of electronic water pump, the electric machine assembly including being equipped with drive end bearing bracket (1) and rear end cap (2), which is characterized in that the motor Component further includes water proof set (3) between the drive end bearing bracket (1) and rear end cap (2) and is sheathed on the water proof set (3) In rotor (5), the drive end bearing bracket (1), the rear end cap (2), the water proof set (3) and the rotor (5) Cleaning solution Circulation Area is limited jointly, and the rear end cap (2) is equipped with for cleaning solution to be introduced the cleaning solution Circulation Area Back flush water inlet (28).
2. electronic water pump according to claim 1, which is characterized in that the rear end cap (2) includes back shroud (21) and connects Logical structure, the back shroud (21) are equipped with the back flush water inlet (28), and the connectivity structure is connected to the cleaning solution Circulation Area and the back flush water inlet (28).
3. electronic water pump according to claim 2, which is characterized in that be formed in the back shroud (21) and be connected to described The hollow sink (25) of fabric connectivity, the hollow sink (25) are equipped with the groove sidewall as the back flush water inlet (28) Opening.
4. electronic water pump according to claim 3, which is characterized in that the rear end cap (2) further include be set to it is described after Bearing mounting groove (22) on the front bulkhead of cover board (21) and the circumferential sink (24) around the bearing mounting groove (22) setting, The circumferential direction sink (24) is as the connectivity structure to be connected to the cleaning solution Circulation Area and the hollow sink (25).
5. electronic water pump according to claim 3, which is characterized in that the cast member that the rear end cap (2) is integrally formed.
6. electronic water pump according to claim 1, which is characterized in that the back flush water inlet (28) can open Switch between state or closed state.
7. electronic water pump according to claim 6, which is characterized in that the back flush water inlet (28) is equipped with removable The screw thread nut cap (9) unloaded.
8. electronic water pump according to claim 1, which is characterized in that the drive end bearing bracket (1), which is equipped with, is used as back flush The drive end bearing bracket through-hole (14) of water outlet.
9. electronic water pump according to claim 4, which is characterized in that the rotor (5) includes protruding into the bearing Armature spindle (51) in mounting groove (22), the armature spindle (51) be formed with axially through central shaft hole (52), the axis Mounting groove (22) is held axially to be connected to the hollow sink (25).
10. electronic water pump described according to claim 1~any one of 9, which is characterized in that the drive end bearing bracket (1) and institute It states between water proof set (3) and is equipped with sealing ring (6) between the rear end cap (2) and the water proof set (3).
CN201821059817.6U 2018-07-04 2018-07-04 Electronic water pump Active CN208539724U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821059817.6U CN208539724U (en) 2018-07-04 2018-07-04 Electronic water pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821059817.6U CN208539724U (en) 2018-07-04 2018-07-04 Electronic water pump

Publications (1)

Publication Number Publication Date
CN208539724U true CN208539724U (en) 2019-02-22

Family

ID=65380264

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821059817.6U Active CN208539724U (en) 2018-07-04 2018-07-04 Electronic water pump

Country Status (1)

Country Link
CN (1) CN208539724U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022095608A1 (en) * 2020-11-04 2022-05-12 华工(江门)机电有限公司 Stator module, electric motor, and pipeline pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022095608A1 (en) * 2020-11-04 2022-05-12 华工(江门)机电有限公司 Stator module, electric motor, and pipeline pump

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20190604

Address after: 528311 Building No. 21 Gangqian Road, Industrial Park, Beijiao Town, Shunde District, Foshan City, Guangdong Province

Patentee after: Guangdong Welling Automobile Parts Co., Ltd.

Address before: 528000 No. 27 Xingye Road, Beijiao Industrial Park, Shunde District, Foshan City, Guangdong Province

Co-patentee before: Midea Welling Electric Motor Technology (Shanghai) Co., Ltd.

Patentee before: Guangdong Welling Electric Machine Manufacture Co., Ltd.

TR01 Transfer of patent right