CN208369361U - Permanent magnet motor and immersible pump - Google Patents
Permanent magnet motor and immersible pump Download PDFInfo
- Publication number
- CN208369361U CN208369361U CN201820936917.6U CN201820936917U CN208369361U CN 208369361 U CN208369361 U CN 208369361U CN 201820936917 U CN201820936917 U CN 201820936917U CN 208369361 U CN208369361 U CN 208369361U
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- bearing
- cavity
- armature spindle
- liquid
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- 239000007788 liquid Substances 0.000 claims abstract description 90
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 208000002925 dental caries Diseases 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000009189 diving Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model relates to pump technical field more particularly to a kind of permanent magnet motors and immersible pump of diving under water.Permanent magnet motor includes casing；Casing is vertical structure, and casing includes first end and second end；Casing first end is connected with first bearing seat；Rotor is provided in casing, armature spindle is connect by first bearing with first bearing seat；The first cavity is formed between first bearing seat and armature spindle；There is air in first cavity；When first cavity immerses liquid close to the side of second end, liquid level rises, and to the direction compressed air close to first end, until the pressure of air is identical as the pressure of liquid, at this point, the liquid level of liquid is located under first bearing.Immersible pump includes the permanent magnet motor.The utility model lies in that a kind of permanent magnet motor and immersible pump are provided, to solve the technical problem that immersible pump components existing in the prior art are more, structure is complicated, manufacture difficulty is big, installation difficulty is big.
Description
Technical field
The utility model relates to pump technical fields of diving under water, more particularly, to a kind of permanent magnet motor and immersible pump.
Background technique
Immersible pump is also submerged pump, is a kind of latent pump to work (under liquid) in water.Immersible pump is urban sewage discharge, dirt
Water process, road and bridge engineering draining are irrigated in hydraulic engineering and the important equipment of water drainage etc..With national environmental protection regulation improve and
The enhancing of people's environmental consciousness, the immersible pump for sewage treatment have obtained more and more demands and application.Immersible pump is long-term
It slips into the sewage of various water quality and runs, working environment is severe.Since submersible motor pulls the plug operation, working condition is complicated,
Therefore, it is fully sealed in structure design.
Shown in Figure 1, Fig. 1 is the structural schematic diagram of immersible pump in the prior art；Prior art immersible pump is by motor
Composition, motor is in addition to further including mechanical seal 3 ' and oil sealing 4 ' to guarantee leakproofness with stator 1 ' and rotor 2 ', wherein
Armature spindle is supported in rack by bearing 5 '.The bearing 5 ' of conventional products cannot be used for a long time in water, pass through switch
6 ' monitorings pump whether interior liquid level is more than bearing 5 ', if liquid level is more than bearing in pumping, will lead to machine winding and bearing failure, therefore
Oil sealing and mechanical seal must be housed.In motor installation process, motor stator and oil sealing end face seam allowance cooperate, oil sealing end face with
The cooperation of pump cover seam allowance, it is therefore desirable to which the coaxial accuracy of oil sealing and axis is high, otherwise, axis and mechanical seal assembly are difficult, cause
The immersible pump components of the prior art are more, structure is complicated, manufacture difficulty is big, installation difficulty is big.
Therefore, the application provides a kind of new permanent magnet motor and immersible pump regarding to the issue above.
Utility model content
The purpose of this utility model is to provide a kind of permanent magnet motors, to solve immersible pump zero existing in the prior art
The technical problem that component is more, structure is complicated, manufacture difficulty is big, installation difficulty is big.
The purpose of this utility model, which also resides in, provides a kind of immersible pump, further to solve diving existing in the prior art
Pump the technical problem that components are more, structure is complicated, manufacture difficulty is big, installation difficulty is big.
Based on above-mentioned first purpose, the utility model provides a kind of permanent magnet motor, including casing；
The casing be vertical structure, along the short transverse of the casing, the casing include corresponding first end and
Second end, and the first end is located at the top of the second end；
The casing is connected with first bearing seat close to the side of the first end；
Rotor is provided in the casing, the armature spindle of the rotor passes through first bearing close to the side of the first end
It is connect with the first bearing seat；
Wherein, the first cavity is formed between the first bearing seat and the armature spindle, and the first bearing is located at institute
It states in the first cavity；
There is air in first cavity；
When first cavity immerses liquid close to the side of the second end, the liquid level of the liquid rises, and to leaning on
The air is compressed in the direction of the nearly first end, until the pressure of the air is identical as the pressure of the liquid, at this point, institute
The liquid level for stating liquid is located under the first bearing.
In any of the above-described technical solution, further, first bearing seat described in the utility model, the armature spindle are close
First cavity is formed between the side of the first end and the shaft shoulder of the armature spindle；
The first gap is formed between the shaft shoulder of side and the armature spindle of the first bearing seat far from the first end；
First gap enables to be connected to except first cavity and the first bearing seat.
In any of the above-described technical solution, further, casing described in the utility model is close to the side of the second end
It is connected with second bearing seat；
The armature spindle of the rotor is connect by second bearing with the second bearing seat close to the side of the second end；
Wherein, the second cavity is formed between the second bearing seat and the armature spindle, and the second bearing is located at institute
It states in the second cavity；
There is air in second cavity；
When second cavity immerses liquid close to the side of the second end, the liquid level of the liquid rises, and to leaning on
The air is compressed in the direction of the nearly first end, until the pressure of the air is identical as the pressure of the liquid, at this point, institute
The liquid level for stating liquid is located under the second bearing.
In any of the above-described technical solution, further, permanent magnet motor described in the utility model further includes first axle
Hold bracket；
The first bearing is positioned by the shaft shoulder of the first bearing bracket and the armature spindle；
First chamber is formed between the first bearing seat, the first bearing bracket and the shaft shoulder of the armature spindle
Body.
In any of the above-described technical solution, further, permanent magnet motor described in the utility model further includes the second axis
Hold bracket；
The second bearing is positioned by the second bearing bracket and the armature spindle close to the shaft shoulder of the second end；
Second chamber is formed between the second bearing seat, the second bearing bracket and the shaft shoulder of the armature spindle
Body.
In any of the above-described technical solution, further, permanent magnet motor described in the utility model further includes third axis
Hold bracket；
The one end of the second bearing in the axial direction and the armature spindle are positioned close to the shaft shoulder of the second end, another
End is positioned by the second bearing bracket；
The described one end of second bearing bracket far from the second bearing passes through the 3rd bearing bracket and described second
Bearing block connection.
In any of the above-described technical solution, further, permanent magnet motor described in the utility model further includes sheath；
The sheath is sheathed on the armature spindle, and is located at the armature spindle at the shaft shoulder of the second end；
Institute is formed between the second bearing seat, the sheath, the second bearing bracket and the 3rd bearing bracket
State the second cavity.
In any of the above-described technical solution, further, first bearing described in the utility model is located at first cavity
Close to the side of the first end；
And/or the second bearing is located at second cavity close to the side of the first end.
Based on above-mentioned second purpose, the utility model provides a kind of immersible pump, including the permanent magnet motor.
In any of the above-described technical solution, further, immersible pump described in the utility model further includes water pump；
The water pump is set to the permanent magnet motor close to the side of the second end, and the water pump and the rotor
Axis connection.
By adopting the above technical scheme, the utility model has the following beneficial effects:
There is air in first cavity, when immersible pump to be set in liquid, liquid enters in immersible pump, meanwhile, pass through
First cavity enters in the first cavity close to the side of the second end, as immersible pump immerses the intracorporal depth down of liquid, the
The liquid level of liquid continues to rise in one cavity, and liquid compresses the air to the direction close to the first end, with air body
Product is compressed, and air increases the pressure of liquid, until the pressure of air is identical as the pressure of liquid, at this point, the liquid level of liquid
No longer rise, at this point, the liquid level of the liquid is located under the first bearing, to guarantee that first bearing will not connect with liquid
Immersible pump reliably working under liquid is realized in touching.In conclusion first bearing is protected in air using pressure balance principle,
It enables first bearing not contact with liquid, eliminates oil sealing and mechanical seal, simplify submersible pump structure, improve reliability, peace
Dress is convenient.
Immersible pump provided by the utility model is further solved and is deposited in the prior art including the permanent magnet motor
Immersible pump components are more, the technical problem that structure is complicated, manufacture difficulty is big, installation difficulty is big.
The additional aspect and advantage of the utility model will become obviously in following description section, or practical new by this
The practice of type is recognized.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of immersible pump in the prior art；
Fig. 2 is the structural schematic diagram of immersible pump provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of immersible pump shown in Fig. 2 in application process.
Icon: 1 '-stator；2 '-rotors；3 '-mechanical seals；4 '-oil sealings；5 '-bearings；6 '-switches；
1- casing；2- armature spindle；31- first bearing seat；32- second bearing seat；41- first bearing；42- second bearing；
51- first bearing bracket；52- second bearing bracket；53- 3rd bearing bracket；The first cavity of 61-；The second cavity of 62-；7- shield
Set；8- water pump.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Embodiment one
Referring to fig. 2 shown in-Fig. 3, the present embodiment provides a kind of permanent magnet motors, including casing 1；
The casing 1 is vertical structure, and along the short transverse of the casing 1, the casing includes corresponding first end
And second end, and the first end is located at the top of the second end；
The casing 1 is connected with first bearing seat 31 close to the side of the first end；
Rotor is provided in the casing, the armature spindle 2 of the rotor passes through first axle close to the side of the first end
41 are held to connect with the first bearing seat 31；
Wherein, the first cavity 61, and the first bearing 41 are formed between the first bearing seat 31 and the armature spindle 2
In first cavity 61；
There is air in first cavity 61；
It is shown in Figure 3, when first cavity immerses liquid close to the side of the second end, the liquid level of the liquid
Rise, and compress the air to the direction close to the first end, until the pressure of the pressure of the air and the liquid
It is identical, at this point, the liquid level of the liquid is located under the first bearing.
Preferably, casing includes mutually enclosing the side wall connect, and optionally, side wall enables casing in cylindrical body.
Casing is vertical casing, that is, the axis direction of casing is vertical.
There is air in first cavity, when immersible pump to be set in liquid, liquid enters in immersible pump, meanwhile, pass through
First cavity enters in the first cavity close to the side of the second end, as immersible pump immerses the intracorporal depth down of liquid, the
The liquid level of liquid continues to rise in one cavity, and liquid compresses the air to the direction close to the first end, with air body
Product is compressed, and air increases the pressure of liquid, until the pressure of air is identical as the pressure of liquid, at this point, the liquid level of liquid
No longer rise, at this point, the liquid level of the liquid is located under the first bearing, to guarantee that first bearing will not connect with liquid
Immersible pump reliably working under liquid is realized in touching.
In conclusion first bearing is protected in air using pressure balance principle, enable first bearing will not be with liquid
Contact, eliminates oil sealing and mechanical seal, simplifies submersible pump structure, improves reliability, easy for installation.
Optionally, the first bearing seat, the armature spindle are close to the side of the first end and the axis of the armature spindle
First cavity is formed between shoulder；
The first gap is formed between the shaft shoulder of side and the armature spindle of the first bearing seat far from the first end；
First gap enables to be connected to except first cavity and the first bearing seat.
To enable first cavity close to the second end side immerse liquid, and by the intracorporal air of the first chamber to
It is compressed close to the direction of first end.
Preferably, shown in Figure 2, permanent magnet motor described in the present embodiment further includes first bearing bracket 51；
The first bearing 41 is positioned by the shaft shoulder of the first bearing bracket 51 and the armature spindle 2；
First chamber is formed between the first bearing seat, the first bearing bracket and the shaft shoulder of the armature spindle
Body.
Preferably, the casing is connected with second bearing seat 32 close to the side of the second end；
The armature spindle 2 of the rotor passes through second bearing 42 and the second bearing seat 32 close to the side of the second end
Connection；
Wherein, the second cavity 62, and the second bearing 42 are formed between the second bearing seat 32 and the armature spindle 2
In second cavity 62；
There is air in second cavity；
When second cavity immerses liquid close to the side of the second end, the liquid level of the liquid rises, and to leaning on
The air is compressed in the direction of the nearly first end, until the pressure of the air is identical as the pressure of the liquid, at this point, institute
The liquid level for stating liquid is located under the second bearing.
There is air in second cavity, when immersible pump to be set in liquid, liquid enters in immersible pump, meanwhile, pass through
Second cavity enters in the second cavity close to the side of the second end, as immersible pump immerses the intracorporal depth down of liquid, the
The liquid level of liquid continues to rise in two cavitys, and liquid compresses the air to the direction close to the first end, with air body
Product is compressed, and air increases the pressure of liquid, until the pressure of air is identical as the pressure of liquid, at this point, the liquid level of liquid
No longer rise, at this point, the liquid level of the liquid is located under the second bearing, to guarantee that second bearing will not connect with liquid
Immersible pump reliably working under liquid is realized in touching.
In conclusion second bearing is protected in air using pressure balance principle, enable second bearing will not be with liquid
Contact, eliminates oil sealing and mechanical seal, further simplifies submersible pump structure, improves reliability, easy for installation.
Preferably, shown in Figure 2, permanent magnet motor described in the present embodiment further includes second bearing bracket 52；
The second bearing 42 is by the second bearing bracket 52 with the armature spindle 2 close to the shaft shoulder of the second end
Positioning；
Second chamber is formed between the second bearing seat, the second bearing bracket and the shaft shoulder of the armature spindle
Body.
Preferably, permanent magnet motor described in the present embodiment further includes 3rd bearing bracket 53；
The one end of the second bearing 42 in the axial direction and the armature spindle 2 are positioned close to the shaft shoulder of the second end,
The other end is positioned by the second bearing bracket 52；
The one end of the second bearing bracket 52 far from the second bearing 42 passes through the 3rd bearing bracket 53 and institute
State the connection of second bearing seat 32.
To enable to the accurate positioning of second bearing, reliable.
Preferably, permanent magnet motor described in the present embodiment further includes sheath 7；
The sheath 7 is sheathed on the armature spindle 2, and is located at the armature spindle 2 at the shaft shoulder of the second end；
Institute is formed between the second bearing seat, the sheath, the second bearing bracket and the 3rd bearing bracket
State the second cavity.
Preferably, the first bearing is located at first cavity close to the side of the first end；
And/or the second bearing is located at second cavity close to the side of the first end.
Specifically, the first bearing is located at first cavity close to the side of the first end；
Alternatively, the second bearing is located at second cavity close to the side of the first end.
Alternatively, the first bearing is located at first cavity close to the side of the first end；And the second bearing
Positioned at second cavity close to the side of the first end.
Preferably, the first bearing is located at first cavity close to the side of the first end；And second axis
It holds and is located at second cavity close to the side of the first end.
It is more reliable to the protection of first bearing and second bearing to enable.
Embodiment two
Embodiment two provides a kind of immersible pump, and the immersible pump includes permanent magnet motor described in embodiment one, implements
The technical characteristic of permanent magnet motor disclosed in example one is also applied for the embodiment, the published permanent magnet motor of embodiment one
Technical characteristic is not repeated to describe.The embodiment of the immersible pump is described in further detail with reference to the accompanying drawing.
To save length, the improvement feature of the embodiment is equally embodied in Fig. 2-Fig. 3, therefore, in conjunction with Fig. 2-Fig. 3 to this
The scheme of embodiment is illustrated.
Referring to fig. 2 shown in-Fig. 3, immersible pump provided in this embodiment is further solved including the permanent magnet motor
Immersible pump components existing in the prior art are more, structure is complicated, manufacture difficulty is big, installation difficulty is big technical problem.
Preferably, immersible pump described in the present embodiment further includes water pump 8；
The water pump 8 is set to the permanent magnet motor close to the side of the second end, and the water pump 8 with described turn
Sub- axis 2 connects.
Immersible pump described in the present embodiment has the advantages that permanent magnet motor described in embodiment one, and the advantage is in embodiment
It is described in detail in one, is not repeated herein.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments mean it is practical new in this
Within the scope of type and form different embodiments.For example, in claims above, embodiment claimed
It is one of any can in any combination mode come using.The information disclosed in the background technology section is intended only to deepen
Understanding to the general background technology of the utility model, and be not construed as recognizing or implying in any form that the information is constituted
The prior art known to those skilled in the art.
Claims (10)
1. a kind of permanent magnet motor, which is characterized in that including casing；
The casing is vertical structure, and along the short transverse of the casing, the casing includes corresponding first end and second
End, and the first end is located at the top of the second end；
The casing is connected with first bearing seat close to the side of the first end；
Rotor is provided in the casing, the armature spindle of the rotor passes through first bearing and institute close to the side of the first end
State first bearing seat connection；
Wherein, the first cavity is formed between the first bearing seat and the armature spindle, and the first bearing is located at described the
In one cavity；
There is air in first cavity；
When first cavity immerses liquid close to the side of the second end, the liquid level of the liquid rises, and to close to institute
The air is compressed in the direction for stating first end, until the pressure of the air is identical as the pressure of the liquid, at this point, the liquid
The liquid level of body is located under the first bearing.
2. permanent magnet motor according to claim 1, which is characterized in that the first bearing seat, the armature spindle are close
First cavity is formed between the side of the first end and the shaft shoulder of the armature spindle；
The first gap is formed between the shaft shoulder of side and the armature spindle of the first bearing seat far from the first end；
First gap enables to be connected to except first cavity and the first bearing seat.
3. permanent magnet motor according to claim 1, which is characterized in that the casing connects close to the side of the second end
It is connected to second bearing seat；
The armature spindle of the rotor is connect by second bearing with the second bearing seat close to the side of the second end；
Wherein, the second cavity is formed between the second bearing seat and the armature spindle, and the second bearing is located at described the
In two cavitys；
There is air in second cavity；
When second cavity immerses liquid close to the side of the second end, the liquid level of the liquid rises, and to close to institute
The air is compressed in the direction for stating first end, until the pressure of the air is identical as the pressure of the liquid, at this point, the liquid
The liquid level of body is located under the second bearing.
4. permanent magnet motor according to claim 2, which is characterized in that further include first bearing bracket；
The first bearing is positioned by the shaft shoulder of the first bearing bracket and the armature spindle；
First cavity is formed between the first bearing seat, the first bearing bracket and the shaft shoulder of the armature spindle.
5. permanent magnet motor according to claim 3, which is characterized in that further include second bearing bracket；
The second bearing is positioned by the second bearing bracket and the armature spindle close to the shaft shoulder of the second end；
Second cavity is formed between the second bearing seat, the second bearing bracket and the shaft shoulder of the armature spindle.
6. permanent magnet motor according to claim 5, which is characterized in that further include 3rd bearing bracket；
The one end of the second bearing in the axial direction and the armature spindle are positioned close to the shaft shoulder of the second end, and the other end is logical
Cross the second bearing bracket positioning；
The described one end of second bearing bracket far from the second bearing passes through the 3rd bearing bracket and the second bearing
Seat connection.
7. permanent magnet motor according to claim 6, which is characterized in that further include sheath；
The sheath is sheathed on the armature spindle, and is located at the armature spindle at the shaft shoulder of the second end；
Described is formed between the second bearing seat, the sheath, the second bearing bracket and the 3rd bearing bracket
Two cavitys.
8. permanent magnet motor according to claim 3, which is characterized in that the first bearing is located at first cavity and leans on
The side of the nearly first end；
And/or the second bearing is located at second cavity close to the side of the first end.
9. a kind of immersible pump, which is characterized in that including such as described in any item permanent magnet motors of claim 1-8.
10. immersible pump according to claim 9, which is characterized in that further include water pump；
The water pump is set to the permanent magnet motor close to the side of the second end, and the water pump and the armature spindle connect
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820936917.6U CN208369361U (en) | 2018-06-15 | 2018-06-15 | Permanent magnet motor and immersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820936917.6U CN208369361U (en) | 2018-06-15 | 2018-06-15 | Permanent magnet motor and immersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208369361U true CN208369361U (en) | 2019-01-11 |
Family
ID=64929229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820936917.6U Withdrawn - After Issue CN208369361U (en) | 2018-06-15 | 2018-06-15 | Permanent magnet motor and immersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208369361U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448790A (en) * | 2018-06-15 | 2018-08-24 | 博远机电（嘉兴）有限公司 | Permanent magnet motor and immersible pump |
-
2018
- 2018-06-15 CN CN201820936917.6U patent/CN208369361U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448790A (en) * | 2018-06-15 | 2018-08-24 | 博远机电（嘉兴）有限公司 | Permanent magnet motor and immersible pump |
| CN108448790B (en) * | 2018-06-15 | 2023-12-01 | 博远机电（嘉兴）有限公司 | Permanent magnet motor and submersible pump |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190111 Effective date of abandoning: 20231201 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190111 Effective date of abandoning: 20231201 |