CN102606488A - Liquid pump - Google Patents
Liquid pump Download PDFInfo
- Publication number
- CN102606488A CN102606488A CN2012100563407A CN201210056340A CN102606488A CN 102606488 A CN102606488 A CN 102606488A CN 2012100563407 A CN2012100563407 A CN 2012100563407A CN 201210056340 A CN201210056340 A CN 201210056340A CN 102606488 A CN102606488 A CN 102606488A
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- mandrel
- rotor
- impeller
- sealing
- liquid pump
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Abstract
The invention discloses a liquid pump, which comprises a case, a stator component, a rotor component and a pump cover. The case comprises a motor casing and a sealing separator with an upper opening, wherein the opening of the sealing separator is tightly sealed by a sealing cover to form a middle first containing chamber, the sealing separator is mounted in the motor casing to form a second containing chamber enclosing the first containing chamber, the stator component is mounted in the second containing chamber, the rotor component is rotatably inserted on the first containing chamber, the sealing cover is provided with an annular groove, and an annular stopper synchronously rotating with an impeller is correspondingly arranged in the groove in a matched manner and extends into the annular groove. Further, a sealing spacer is arranged at the position of a mandrel between the impeller and the sealing cover. By the aid of the scheme, multiple separation effects for metal chips in water flow can be achieved, so that the metal chips can be prevented from entering a rotor and blocking the rotor.
Description
Technical field
The present invention relates to the pumping equipment art, refer in particular to a kind of liquid pump of easy to assembly, good stability.
Background technique
At machining equipment (like lathe, milling machine, drilling machine, planer etc.) metalwork is added man-hour; Need operative position to be cooled off with cooling liquid (cooling water); Many metal fines that will process simultaneously wash away, and generally speaking, these waste water that have the metal fines can be concentrated and flow in a liquid storage tank or the liquid container; After utilizing liquid pump to take waste water away filtration then, supply recycle.Owing to contain many metal fillingss or other fines in this waste water, when using common suction pump suction, these metal fillingss can receive the Magnmet rotor in the motor to attract to stick on the rotor, and easy stuck rotor can not rotate rotor.Therefore need draw water with a kind of special pump.
Summary of the invention
In view of this, the present invention is directed to the disappearance of existing technology existence, its main purpose provides a kind of liquid pump, and it carries out multiple isolation to the metal fillings in the current, makes metal fillings can not enter into rotor, stuck rotor, thus overcome the deficiency of existing technology.
For realizing above-mentioned purpose, the present invention adopts following technological scheme:
A kind of liquid pump; Comprise housing, be installed in stator module, the rotor assembly in the housing and have water intake and the pump cover of water outlet; This housing comprises that a motor housing and a upper end have the seal part of opening; Tight first putting chamber that forms in the middle of being positioned at of the opening utilization of sealing separator sealing cap seal, and the seal part is installed in to form in the motor housing and is centered around the second outer putting chamber of first putting chamber, and this stator module is installed in second putting chamber; Said rotor assembly comprises mandrel, rotor and impeller; This rotor is rotatably installed in first putting chamber; Interspersed being fixed in the rotor in the middle part of this mandrel rotated with rotor synchronously, and the upper end of mandrel passes first putting chamber, and impeller is fixed on the top of mandrel and also rotates synchronously with rotor; And be provided with annular groove around mandrel on the said sealing cover; Respective slot is equipped with the annular damp block that rotates synchronously with impeller; This annular damp block extend in the annular groove, and further, the mandrel position between said impeller and the sealing cover is provided with the seal circle.
As a kind of preferred version, the seal circle is the first seal circle between said impeller and the sealing cover, and further, the mandrel position of sealing lid bottom is the equipment second seal circle also.
As a kind of preferred version, the lower end one of said impeller extends to form aforementioned damp block.
As a kind of preferred version, the outer circumferential face of the said first seal circle is provided with the ditch portion of V font.
As a kind of preferred version, the mandrel position of said impeller bottom surface upwards is concaved with first breach, and this first seal circle is installed in first breach.
As a kind of preferred version, the two ends of said mandrel are positioned on the top and bottom of first putting chamber through oil-impregnated bearing respectively.
As a kind of preferred version; The top of said first putting chamber is aforementioned sealing cover; Sealing covers and is provided with locating slot, and the bottom of first putting chamber is concaved with down locating slot downwards, and this oil-impregnated bearing string is located on the mandrel and is positioned on this in the locating slot and following locating slot.
As a kind of preferred version, the top of locating slot upwards is concaved with second breach on the said sealing cover, and this second seal circle is installed in second breach.
As a kind of preferred version, said seal part comprises the cylindrical shell of open upper end lower end closed and the cover plate that extends outward on edge, cylindrical shell top, and this cover plate envelope tightly surrounds second putting chamber that forms aforementioned sealing in the upper end-hole of motor housing.
As a kind of preferred version, said rotor assembly further includes upper joint sleeve and lower joint sleeve, this upper joint sleeve and lower joint sleeve respectively from upper and lower both direction locking rotor and be clamped in rotor and mandrel between.
The present invention compared with prior art has tangible advantage and beneficial effect, particularly, can be known by technique scheme, and it mainly is through multilayer water isolating means, makes outside metal fillings in the current is isolated in, and can not enter in the rotor stuck rotor.First heavily is that groove is set on sealing cover; Respective slot is equipped with the damp block that rotates synchronously with impeller; When drawing water, the metal fillings in the current receives the Magnmet rotor magnetic attraction and drops in groove, and this damp block with the metal fillings interception externally; And with wheel rotation metal fillings thicker in the groove is swept outward, thereby the crude metal bits are difficult for entering into the mandrel position.Second heavily is that mandrel position between impeller and sealing cover is provided with the first seal circle, and the tiny metal fillings that enters on the finedraw between sealing cover and the impeller is isolated.Take this, metal fillings can not enter in the rotor fully, guarantees the smooth and easy of rotor rotation, no stuck phenomenon, and stable performance, noise are little, and the water pump life-span is long.
Moreover, further,, make the more abundant of metal fillings isolation to realize triple isolation of metal fines at the mandrel location device second seal circle of sealing cover bottom.
In addition, be fixed on the mandrel through making rotor, and impeller is fixed on the upper end of mandrel; Forming a rotating integral body, thereby this integral body is placed in first putting chamber, make it the relative stator assembly and rotate; Do not have friction like this between rotor and the mandrel, have only the surface of contact of localization part at the two ends of mandrel to produce friction, friction area reduces greatly; Can effectively eliminate seismism, eliminate the noise that vibrations are produced simultaneously, improve the stability of product.
Also have; The two ends of mandrel are top and the bottoms that is positioned at first putting chamber through oil-impregnated bearing; Thereby oil-impregnated bearing can make the assembling of rotor assembly more convenient axially upwards all supporting, locate rotor assembly with the footpath, and in the rotor assembly rotating process; The friction of oil-impregnated bearing and mandrel is little, long service life.
For more clearly setting forth structure characteristic of the present invention and effect, come the present invention is elaborated below in conjunction with accompanying drawing and specific embodiment.
Description of drawings
Fig. 1 is the present invention's embodiment's an assembling schematic perspective view;
Fig. 2 is the present invention's embodiment's a decomposition texture stereogram;
Fig. 3 is the package assembly schematic representation of stator module among the present invention's the embodiment, does not show sealing cover among the figure;
Fig. 4 is the package assembly schematic representation of stator module and impeller among the present invention's the embodiment;
Fig. 5 is the present invention's embodiment's the sectional view of package assembly;
Fig. 6 is the decomposition texture schematic representation of Fig. 5;
Fig. 7 is the enlarged diagram at A place among Fig. 5.
The accompanying drawing identifier declaration:
10, stator module 11, stator coil
12, go up chuck 13, following chuck
14, penetration hole
20, rotor assembly 21, mandrel
211, head end 22, oil-impregnated bearing
23, rotor 231, perforation
24, upper joint sleeve 25, lower joint sleeve
26, impeller 261, damp block
262, first breach 263, finedraw
27, the first seal circle 271, ditch portion
28, flat washer 29, the second seal circle
30, housing 31, motor housing
311, second putting chamber 32, seal part
321, cylindrical shell 322, cover plate
323, first putting chamber 324, locating slot down
33, sealing cover 331, last locating slot
332, bottom 333, groove
334, second breach
40, pump cover 41, water intake
42, water outlet 43, pump chamber
44, seal ring.
Embodiment
Shown in please seeing figures.1.and.2; It has demonstrated the concrete structure of the present invention's preferred embodiment; Include stator module 10, rotor assembly 20, housing 30 and pump cover 40, this stator module 10 is installed in the housing 30 with rotor assembly 20, and pump cover 40 is fixed on the end of housing 30.
Wherein, as shown in Figure 3, this housing 30 comprises motor housing 31, seal part 32 and sealing cover 33.This stator module 10 comprises stator coil 11, goes up chuck 12 and following chuck 13.
This motor housing 31 is the hollow-core construction of open upper end, and sealing separator 32 is installed in and surrounds second putting chamber, 311 (see figure 5)s that formation one is used to install stator coil 11 in this hollow-core construction.Said stator coil 11 is contained in second putting chamber 311 after chuck 12 clamps with following chuck 13 by aforementioned going up, and is provided with drive circuit simultaneously on chuck 12 and the following chuck 13 on this.And center of chuck 12, stator coil 11 and following chuck 13 is provided with a penetration hole 14 on this, and said seal part 32 from top to bottom places in the penetration hole 14.
In conjunction with Fig. 3, Fig. 5 and Fig. 6; Sealing separator 32 roughly is hat-shaped; It comprises that one is positioned at the cover plate 322 of cylindrical shell 321 and above being positioned at of below; This cylindrical shell 321 is an open upper end lower end closed structure, and aforementioned sealing cover 33 covers on sealing separator 32 to be formed for holding first putting chamber, 323 (see figure 5)s of rotor assembly 20; This cover plate 322 is discoideus structures that the upper end edge from cylindrical shell 321 stretches out and forms; The upper end-hole of the tight motor housing 31 of its envelope; Take this, seal part 32 will be installed second putting chamber 311 of stator coil 11 and keep apart with first putting chamber 323 that rotor assembly 20 is installed.
As shown in Figure 5, after rotor assembly 20 is assembled into first putting chamber 323,,, first putting chamber 323 and outside seal are isolated with the opening of stifled tight first putting chamber 323 upper ends with said sealing cover 33 envelope tightening seal separators 32.Particularly; The bottom surface of the sealing lid 33 recessed locating slot 331 on that is formed with that makes progress; Locating slot 331 should be gone up and the oil-impregnated bearing 22 of following string on mandrel 21 can be held; In order to prevent that oil-impregnated bearing 22 gravitates from falling down, it is spacing on this in locating slot 331 to utilize bottom 332 to be fixed on the bottom surface of sealing cover 33 aforementioned oil-impregnated bearing 22.Similarly, become locating slot 324 in the lower ends downward spill of the cylindrical shell 321 of said seal part 32, this time locating slot 324 also is used to hold the oil-impregnated bearing 22 of string on mandrel 21.
As shown in Figure 4, said rotor assembly 20 comprises mandrel 21, oil-impregnated bearing 22, rotor 23, upper joint sleeve 24, lower joint sleeve 25 and impeller 26.This mandrel 21 passes the perforation 231 at rotor 23 centers; This upper joint sleeve 24 and lower joint sleeve 25 respectively from the two ends of upper and lower both direction locking rotor 23, be clamped between rotor 23 and the mandrel 21; Rotor 23 and mandrel 21 are fixed together; Take this, when rotor 23 rotates, mandrel 21 synchronous rotations.Said oil-impregnated bearing 22 has two, is ball, and wherein an oil-impregnated bearing 22 string is located at the lower end of mandrel 21, and the middle part that another round bead string is located at mandrel 21 is the position on the upper side, and this mandrel 21 is installed in the stator module 10 through this two oil-impregnated bearing 22.On the one hand, two oil-impregnated bearings 22 make the assembling of rotor assembly 20 more convenient axially upwards all supporting, locate rotor assembly 20 with the footpath; On the other hand, in rotor assembly 20 rotating process, oil-impregnated bearing 22 contacts with mandrel 21, and it is little to rub, long service life.
When in first putting chamber 323 that rotor assembly 20 is assembled into stator module 10; The oil-impregnated bearing 22 that this mandrel 21 lower ends string is established is presented in the following locating slot 324 of seal part 32; Mandrel 21 middle parts oil-impregnated bearing 22 on the upper side is presented in the last locating slot 331 of sealing cover 33; The head end 211 of mandrel 21 passes sealing cover 33, is used for being connected with impeller 26.
In conjunction with Fig. 4 to Fig. 6, the head end 211 of said mandrel 21 is a flaser texture, and a flat washer 28 is pressed in the top of impeller 26, impeller 26 is fixed on the flaser texture of mandrel 21 head ends 211, and this impeller 26 also rotates with rotor 23 under the drive of mandrel 21 synchronously.
Said pump cover 40 is fixedly connected with stator module 10 through screw; And pump cover 40 is provided with water intake 41 and water outlet 42; Be communicated with a pump chamber 43 between this water intake 41 and the water outlet 42; This pump chamber 43 is used for ccontaining impeller 26, and impeller 26 rotations drive current from water intake 41 suction, from water outlet 42 discharges.
Hold; As shown in Figure 7, all sides of the axis hole on surface are provided with the groove 333 of annular on the said sealing cover 33, and this groove 333 maintains little spacing with axis hole; The lower surface one of said impeller 26 is extended the damp block 261 of annular downwards; This damp block 261 cooperates with groove 333 just, and the bottom surface of damp block 261 almost is attached on the bottom surface of groove 333, thereby the metal fillings in the current can sink in the groove 333 along with current stir; Damp block 261 intercepts metal fillings in the outside of groove 333, and damp block 261 also scans out the metal fillings in the groove 333 with impeller 26 fast rotational simultaneously.
Be concaved with first breach 262 on all side direction of the axis hole of the bottom surface of said impeller 26; Be equipped with the first seal circle 27 to this first breach 262; This first seal circle 27 is installed in first breach 262; Be clamped between the end face of impeller 26 bottom surfaces and sealing cover 33, and the first seal circle, 27 inner ring surfaces are fitted on the mandrel 21, outer ring surface is provided with the ditch portion 271 of V font.The parts of fine metal fillings penetrates in the finedraw 263 between impeller and the sealing cover from groove 333, and the ditch portion of this V font further intercepts thin metal fillings outside, makes it to enter into rotor 23 inside.
In addition, last locating slot 331 tops of sealing lid 33 also are arranged with and are equipped with second breach 334, are provided with the second seal circle 29 to this second breach 334, and this second seal circle 29 is installed in second breach 334, is clamped in outside the mandrel 21.This second seal circle 29 also plays metal fillings is isolated in outer effect.
The assembling process of this liquid pump is following:
Step 1: make chuck 12 and following chuck 13 clamp stator coil 11, be assembled in the lump then in the second interior putting chamber 311 of motor housing 31 from both direction up and down; At this moment; Seal part 32 is inserted in the motor housing 31 from top to bottom; Wherein the cylindrical shell 321 of seal part 32 is inserted in the penetration hole 14 at stator coil 11 centers; The cover plate 322 of seal part 32 covers motor housing 31 upper ends, utilizes screw that cover plate 322 is locked on the motor housing 31, makes motor housing 31, stator coil 11 and seal part 32 threes of stator module 10 encapsulate as a whole.
Step 2: upper joint sleeve 24 and lower joint sleeve 25 are clamped rotor 23 from both direction up and down, mandrel 21 is penetrated in the perforation 231 at rotor 23 centers, an oil-impregnated bearing 22 is wherein sealed in the lower end of mandrel 21; Then, make bottom 332, another oil-impregnated bearing 22 and sealing cover 33 be located in mandrel 21 upper ends successively, both hands are pushed bottom 332 and sealing cover 33, make another oil-impregnated bearing 22 place the locating slot in the sealing cover 33; At this moment, load onto impeller 26, will put down washer 28 again and be enclosed within on the flaser texture on mandrel 21 tops, with impeller 26 lockings; Take this, impeller 26 is assembled into an integral body with rotor assembly 20.
Step 3, the integral body that step 2 is assembled into are assembled in the integral body of step 1 shaping, even be encased in first putting chamber 323 in the lump.
Step 4, pump cover 40 is assembled into motor housing 31 ends, utilizes screw that pump cover 40 and motor housing 31 are locked at together, in order to reach better sealing effect, on the faying surface of pump cover 40 and motor housing 31, seal ring 44 is installed.
In sum, design focal point of the present invention is that it mainly is through multilayer water isolating means, makes outside metal fillings in the current is isolated in, and can not enter in the rotor stuck rotor.First heavily is that groove is set on sealing cover; Respective slot is equipped with the damp block that rotates synchronously with impeller; When drawing water, the metal fillings in the current receives the Magnmet rotor magnetic attraction and drops in groove, and this damp block with the metal fillings interception externally; And with wheel rotation metal fillings thicker in the groove is swept outward, thereby the crude metal bits are difficult for entering into the mandrel position.Second heavily is that mandrel position between impeller and sealing cover is provided with the first seal circle, and the tiny metal fillings that enters on the finedraw between sealing cover and the impeller is isolated.Take this, metal fillings can not enter in the rotor fully, guarantees the smooth and easy of rotor rotation, no stuck phenomenon, and stable performance, noise are little, and the water pump life-span is long.
Moreover, further,, make the more abundant of metal fillings isolation to realize triple isolation of metal fines at the mandrel location device second seal circle of sealing cover bottom.
In addition, be fixed on the mandrel through making rotor, and impeller is fixed on the upper end of mandrel; Forming a rotating integral body, thereby this integral body is placed in first putting chamber, make it the relative stator assembly and rotate; Do not have friction like this between rotor and the mandrel, have only the surface of contact of localization part at the two ends of mandrel to produce friction, friction area reduces greatly; Can effectively eliminate seismism, eliminate the noise that vibrations are produced simultaneously, improve the stability of product.
Also have; The two ends of mandrel are top and the bottoms that is positioned at first putting chamber through oil-impregnated bearing; Thereby oil-impregnated bearing can make the assembling of rotor assembly more convenient axially upwards all supporting, locate rotor assembly with the footpath, and in the rotor assembly rotating process; The friction of oil-impregnated bearing and mandrel is little, long service life.
The above; It only is preferred embodiment of the present invention; Be not that technical scope of the present invention is done any restriction, so every foundation technical spirit of the present invention all still belongs in the scope of technological scheme of the present invention any trickle modification, equivalent variations and modification that above embodiment did.
Claims (10)
1. liquid pump; Comprise housing, be installed in stator module, the rotor assembly in the housing and have water intake and the pump cover of water outlet; It is characterized in that: this housing comprises that a motor housing and a upper end have the seal part of opening; Tight first putting chamber that forms in the middle of being positioned at of the opening utilization of sealing separator sealing cap seal, and the seal part is installed in to form in the motor housing and is centered around the second outer putting chamber of first putting chamber, and this stator module is installed in second putting chamber; Said rotor assembly comprises mandrel, rotor and impeller; This rotor is rotatably installed in first putting chamber; Interspersed being fixed in the rotor in the middle part of this mandrel rotated with rotor synchronously, and the upper end of mandrel passes first putting chamber, and impeller is fixed on the top of mandrel and also rotates synchronously with rotor; And be provided with annular groove around mandrel on the said sealing cover; Respective slot is equipped with the annular damp block that rotates synchronously with impeller; This annular damp block extend in the annular groove, and further, the mandrel position between said impeller and the sealing cover is provided with the seal circle.
2. liquid pump according to claim 1 is characterized in that: the seal circle is the first seal circle between said impeller and the sealing cover, and further, the mandrel position of sealing lid bottom is the equipment second seal circle also.
3. liquid pump according to claim 1 is characterized in that: the lower end one of said impeller extends to form aforementioned damp block.
4. liquid pump according to claim 2 is characterized in that: the outer circumferential face of the said first seal circle is provided with the ditch portion of V font.
5. liquid pump according to claim 2 is characterized in that: the mandrel position of said impeller bottom surface upwards is concaved with first breach, and this first seal circle is installed in first breach.
6. liquid pump according to claim 1 is characterized in that: the two ends of said mandrel are positioned on the top and bottom of first putting chamber through oil-impregnated bearing respectively.
7. liquid pump according to claim 6; It is characterized in that: the top of said first putting chamber is aforementioned sealing cover; Sealing covers and is provided with locating slot; The bottom of first putting chamber is concaved with down locating slot downwards, and this oil-impregnated bearing string is located on the mandrel and is positioned on this in the locating slot and following locating slot.
8. liquid pump according to claim 7 is characterized in that: the top of locating slot upwards is concaved with second breach on the said sealing cover, and this second seal circle is installed in second breach.
9. liquid pump according to claim 1; It is characterized in that: said seal part comprises the cylindrical shell of open upper end lower end closed and the cover plate that extends outward on edge, cylindrical shell top, and this cover plate envelope tightly surrounds second putting chamber that forms aforementioned sealing in the upper end-hole of motor housing.
10. liquid pump according to claim 1 is characterized in that: said rotor assembly further includes upper joint sleeve and lower joint sleeve, this upper joint sleeve and lower joint sleeve respectively from upper and lower both direction locking rotor and be clamped in rotor and mandrel between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210056340.7A CN102606488B (en) | 2012-03-06 | 2012-03-06 | Liquid pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210056340.7A CN102606488B (en) | 2012-03-06 | 2012-03-06 | Liquid pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102606488A true CN102606488A (en) | 2012-07-25 |
| CN102606488B CN102606488B (en) | 2014-09-10 |
Family
ID=46524161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210056340.7A Active CN102606488B (en) | 2012-03-06 | 2012-03-06 | Liquid pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102606488B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916074A (en) * | 2018-08-21 | 2018-11-30 | 浙江澳尔电器有限公司 | A kind of suction pump for basement closestool |
| CN111810413A (en) * | 2019-04-11 | 2020-10-23 | 日本电产三协株式会社 | Pump device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5397220A (en) * | 1993-03-18 | 1995-03-14 | Nippon Shokubai Co., Ltd. | Canned motor pump |
| CN2264263Y (en) * | 1996-04-12 | 1997-10-08 | 殷润堉 | Automatic verticle booster pump |
| CN2663698Y (en) * | 2003-11-20 | 2004-12-15 | 佳木斯电机股份有限公司 | Atmoseal type rolling bearing vertical shield electric pump |
| CN101871459A (en) * | 2009-04-24 | 2010-10-27 | 德昌电机(深圳)有限公司 | Discharge pump |
| CN202545275U (en) * | 2012-03-06 | 2012-11-21 | 东莞市众隆电机电器制造有限公司 | Liquid pump |
-
2012
- 2012-03-06 CN CN201210056340.7A patent/CN102606488B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5397220A (en) * | 1993-03-18 | 1995-03-14 | Nippon Shokubai Co., Ltd. | Canned motor pump |
| CN2264263Y (en) * | 1996-04-12 | 1997-10-08 | 殷润堉 | Automatic verticle booster pump |
| CN2663698Y (en) * | 2003-11-20 | 2004-12-15 | 佳木斯电机股份有限公司 | Atmoseal type rolling bearing vertical shield electric pump |
| CN101871459A (en) * | 2009-04-24 | 2010-10-27 | 德昌电机(深圳)有限公司 | Discharge pump |
| CN202545275U (en) * | 2012-03-06 | 2012-11-21 | 东莞市众隆电机电器制造有限公司 | Liquid pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916074A (en) * | 2018-08-21 | 2018-11-30 | 浙江澳尔电器有限公司 | A kind of suction pump for basement closestool |
| CN108916074B (en) * | 2018-08-21 | 2023-09-26 | 浙江澳尔电器有限公司 | Water suction pump for basement toilet |
| CN111810413A (en) * | 2019-04-11 | 2020-10-23 | 日本电产三协株式会社 | Pump device |
| CN111810413B (en) * | 2019-04-11 | 2022-02-08 | 日本电产三协株式会社 | Pump device |
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| Publication number | Publication date |
|---|---|
| CN102606488B (en) | 2014-09-10 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
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Owner name: DONGGUAN ZHONGLONG PUMP TECHNOLOGY CO., LTD. Free format text: FORMER NAME: DONGGUAN ZHONGLONG MOTORS AND ELECTRICS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 523000, No. 184 east science and technology road, Liu Cun village, Shijie Town, Guangdong, Dongguan Patentee after: DONGGUAN ZHONGLONG PUMP TECHNOLOGY CO., LTD. Address before: 523000 Guangdong city of Dongguan province Shijie Zhen Heng Kau management zone Xingheng road Tongren Street No. 1 Patentee before: Dongguan Zhonglong Motor & Electrical Appliance Co., Ltd. |