CN117189619A - Shielding electric pump with liquid cooling structure - Google Patents
Shielding electric pump with liquid cooling structure Download PDFInfo
- Publication number
- CN117189619A CN117189619A CN202310670803.7A CN202310670803A CN117189619A CN 117189619 A CN117189619 A CN 117189619A CN 202310670803 A CN202310670803 A CN 202310670803A CN 117189619 A CN117189619 A CN 117189619A
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- Prior art keywords
- pump
- stator
- water inlet
- cover
- flow channel
- Prior art date
- Legal status (The legal status 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 status listed.)
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- 239000007788 liquid Substances 0.000 title claims abstract description 32
- 238000001816 cooling Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 88
- 238000004804 winding Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 5
- GQWNECFJGBQMBO-UHFFFAOYSA-N Molindone hydrochloride Chemical compound Cl.O=C1C=2C(CC)=C(C)NC=2CCC1CN1CCOCC1 GQWNECFJGBQMBO-UHFFFAOYSA-N 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Abstract
The utility model provides a utensil liquid cooling structure's canned motor pump, including the pump body, drive impeller pivoted rotor, the stator, pump cover and back lid, pump cover lid locates pump body axial one end and encloses into the impeller chamber that holds the impeller rather than it, the back lid is located pump body axial other end, the pump body is including the plastic layer of the contact pin of the external plug-in components that the parcel stator only exposes the stator, plastic layer central authorities are equipped with the open rotor chamber in one end that is used for holding the rotor, the bottom in rotor chamber is equipped with the through-hole, the back lid is equipped with the first runner and the second runner that separate independently, the plastic layer is equipped with the first water inlet channel and the second water inlet channel with the second runner intercommunication that the several axial through-hole formation opening and first runner intercommunication in stator periphery. This design avoids water to carry out the stack of heat at the back lid with the water that absorbs the great heat of stator when flowing into the back lid from the impeller chamber, and the lid transmits in the electrical components who sets up in back lid one side again after, leads to the canned motor pump to burn out or not work because of local overheated, promotes canned motor pump's life and reliability.
Description
Technical Field
The invention relates to a shielding electric pump, in particular to a shielding electric pump with a liquid cooling structure, and the IPC classification number of the shielding electric pump is F04D13/06.
Background
The prior canned motor pump with liquid cooling structure is shown in the prior application patent number CN208982367U, and a pump body is provided with a circulating waterway to guide water in a wading space (namely an impeller cavity) to a cooling cavity (and a mounting cavity) so as to radiate heat of a motor and a control module (namely a circuit board) arranged on one side of a heat radiating cover. Foretell canned motor pump can't accomplish effectual thermal management, and water can absorb the heat of motor earlier when the circulation water route, then carries the heat dissipation of absorption motor thermal water entering cooling chamber to the control panel, and when the motor self calorific capacity was great, the water of flowing through the circulation water route can take great heat to cooling chamber transfer to control module, leads to control module to make electronic components damage or fuse because of absorbing too high outside heat, has reduced canned motor pump's life and reliability.
Disclosure of Invention
In order to solve the problems, the invention provides the following technical scheme:
the utility model provides a shielding charge pump of utensil liquid cooling structure, including the pump body, drive impeller pivoted rotor, the stator, pump cover and back lid, pump cover lid locates pump body axial one end and encloses into the impeller chamber that holds the impeller rather than it, back lid locates pump body axial other end and with outer environment watertight seal, the pump body is including the plastic layer of the contact pin of the external plug-in components that wraps up the stator and only exposes the stator, plastic layer central authorities are equipped with the open rotor chamber in one end that is used for holding the rotor, the bottom in rotor chamber is equipped with the through-hole, its characterized in that: the rear cover is provided with a first flow passage and a second flow passage which are separated and independent, the plastic layer is provided with a plurality of axial through holes which axially penetrate through the stator, one end of each axial through hole is communicated with the impeller cavity to guide in liquid, the other end of each partial axial through hole is communicated with the first flow passage to form a first water inlet passage, the other ends of the other partial axial through holes are communicated with the second flow passage to form a second water inlet passage, and the first flow passage and the second flow passage respectively guide out the liquid to penetrate through the rotor cavity to flow back to the impeller cavity.
According to the shielding electric pump with the liquid cooling structure, water passes through the first water inlet channel from the impeller cavity and enters the first flow channel, and water passes through the second water inlet channel from the impeller cavity and enters the second flow channel, so that the water in the impeller cavity is subjected to regional heat dissipation, namely, the water is guided to the area where parts required to be subjected to heat dissipation are located along the respective water inlet channel and the flow channel, and the corresponding parts are subjected to main cooling heat dissipation, so that the water absorbing the relatively large heat of the stator is prevented from being subjected to heat superposition on the rear cover when the water flows into the rear cover, and then is transferred to an electric element arranged on one side of the rear cover through the rear cover, so that the shielding electric pump is burnt or does not work due to local overheating, and the service life and reliability of the shielding electric pump are improved.
Further, the axial through hole is provided in the plastic layer of the outer periphery of the stator.
Further, the stator is a plastic package stator and comprises a stator part and a stator plastic package shell which is injection molded on the stator part, wherein the stator part comprises a winding and an external plug-in unit which is in conductive communication with the winding, and the winding is sealed in the stator plastic package shell.
Further, in the same radial sectional view, the total area of the radial sections of the first water inlet channel is larger than the total area of the radial sections of the second water inlet channel; the projected area of the first flow channel is smaller than the projected area of the second flow channel.
Further, the rear cover is a columnar body made of metal, the first flow channel is an M-shaped flow channel formed on the upper end face of the rear cover along the circumferential outer edge, and the second flow channel is a labyrinth flow channel formed by a plurality of arc-shaped flow channels which are communicated end to end and are positioned on the inner side of the first flow channel.
Further, the shielding electric pump with the liquid cooling structure further comprises a circuit board and an end cover, wherein the end cover is covered on the end face of the rear cover, which is opposite to the pump body, and an installation cavity for accommodating the circuit board is formed by the end cover and the rear cover.
Further, the rotor comprises a rotating shaft, the rotating shaft is provided with a rotating shaft through hole which penetrates through the rotating shaft in the axial direction, and the rotating shaft through hole is communicated with the through hole.
Further, the end face of the pump body, which is opposite to the pump cover, is provided with a first water inlet hole, and the first water inlet holes are communicated with two adjacent first water inlet channels.
Further, the end face of the pump body, which is opposite to the pump cover, is provided with a second water inlet hole for communicating two adjacent second water inlet channels
Further, in the same projection plane perpendicular to the axis, the axial projection of the second water inlet channel at least partially overlaps with the axial projection of the water outlet pipe provided by the pump cover.
Further, the pump cover includes a pump cover volute chamber and a pump cover second flow passage having a gradually smaller radial cross section in the direction of rotation of the impeller, the pump cover volute chamber and the pump cover second flow passage communicating with each other.
Drawings
FIG. 1 is a front view of a canned motor pump with liquid cooling structure according to the present invention;
FIG. 2 is a cross-sectional view of A-A of FIG. 1;
FIG. 3 is a cross-sectional view of B-B of FIG. 1;
FIG. 4 is a cross-sectional view of C-C of FIG. 1;
FIG. 5 is a step cross-sectional view of D-D of FIG. 2;
FIG. 6 is a bottom view of the pump body of the present invention;
FIG. 7 is a schematic perspective view of the pump body of the present invention;
FIG. 8 is an axial cross-sectional view of the stator of the present invention;
FIG. 9 is a schematic perspective view of the rear cover of the present invention;
FIG. 10 is an axial cross-sectional view of another embodiment of the present invention;
wherein: 10-rotor cavity, 20-impeller cavity, 30-rotor cavity, 100-pump body, 100 '-pump body, 110-axial through-hole, 111-first intake passage, 111' -first intake passage, 112-second intake passage, 112 '-first intake passage, 113-first intake hole, 114-second intake hole, 120-plastic layer, 130-bottom wall, 131-through-hole, 200-rotor, 210-spindle, 211-spindle through-hole, 230-impeller, 300-stator, 300' -stator, 310-stator part, 311-winding, 312-external insert, 313-pin, 314-core, 315-coil former, 320-stator plastic package, 400-pump cover, 410-pump cover volute chamber, 420-pump cover second flow passage, 430-outlet pipe, 500-back cover, 510-first flow passage, 520-second flow passage, 600-circuit board, 700-end cover
Detailed Description
Referring to fig. 1, 5 and 6, the present invention provides a canned motor pump with a liquid cooling structure, which comprises a pump body 100, a rotor 200 rotatably mounted on the pump body 100, a stator 300 fixed on the pump body 100, a pump cover 400 disposed at one axial end of the pump body 100, and a rear cover 500 disposed at the other axial end of the pump body 100. The rotor 200 includes a rotating shaft 210 and an impeller 230 disposed at one end of the rotating shaft 210, and a pump cover 400 covers the pump body 100 to enclose an impeller cavity 20 for accommodating the impeller 230. Referring to fig. 4, 5 and 7, the pump body 100 has a ring-column shape as a whole, and includes a plastic layer 120 surrounding a stator 300, wherein pins 313 of an external connector 312 of the stator 300 extend to be exposed outside the plastic layer 120. The plastic layer 120 has a rotor cavity 10 with one end opened at the center, a through hole 131 is provided at the bottom end of the rotor cavity 10, and the rotor 200 is rotatably installed in the rotor cavity 10. In order to achieve independent heat dissipation of the stator and the electrical components, the back cover 500 of the present invention is provided with a first flow channel 510 and a second flow channel 520 which are separated and independent, and the plastic layer 120 is provided with a plurality of axial through holes 110 at the periphery of the stator 300, and in other embodiments, the plastic layer 120 may be provided in any plastic wrapping area capable of axially penetrating the stator, such as the inner periphery of the stator 300 (not shown) of the plastic layer 120. The axial through hole 110 includes a first water inlet channel 111 having one end communicating with the impeller chamber 20 and the other end communicating with the first flow channel 510, and a second water inlet channel 112 having one end communicating with the impeller chamber 20 and the other end communicating with the second flow channel 520. Through the design, water is guided to the area where the parts of the respective targets needing to dissipate heat are located along the respective channels and the flow channels and the corresponding parts are mainly cooled and dissipated, so that the phenomenon that water absorbing the large heat of the stator is subjected to heat superposition on the rear cover when water flows into the rear cover from the impeller cavity and then is transferred to an electric element arranged on one side of the rear cover through the rear cover is avoided, the canned motor pump is burnt out or does not work due to local overheating, and the service life and reliability of the canned motor pump are improved.
Referring to fig. 4 and 5, the working principle of the shielding electric pump with the liquid cooling structure of the invention is as follows: after the canned motor pump is electrified, water in the impeller cavity 20 flows into a first flow channel 510 on the rear cover through a first water inlet flow channel 111 and then flows back to the impeller cavity through the rotor cavity 10 to form a group of cooling water paths, and the cooling water paths mainly absorb heat of the stator to dissipate the heat of the stator; the water in the impeller cavity 20 flows into the second flow channel 520 on the rear cover through the second water inlet flow channel 112, then flows back to the impeller cavity through the rotor cavity 10 to form another group of cooling water paths, and the cooling water paths mainly absorb heat of electric elements arranged on one side of the rear cover to dissipate heat.
Referring to fig. 5 to 8, the stator 300 of the present invention is a plastic-encapsulated stator, which includes a stator portion 310 and a stator plastic-encapsulated case 320 injection-molded to the stator portion. The stator portion 310 includes a core 314, a bobbin 315 fixed to the core, a winding 311 wound around the bobbin 315, and an external connector 312 in conductive communication with the winding 311, the external connector 312 including a pin 313 for external connection. The stator plastic package 320 is a housing formed by insert molding the stator portion 310, after the stator portion 310 is molded, the winding 111 is sealed in the plastic package 320, and the pins 313 extend and are exposed on the outer surface of the plastic package 320. The pump body 100 is formed by taking the stator 300 as a mold insert and placing the mold insert into a mold for injection molding, and comprises a plastic layer 120, wherein the plastic layer 120 wraps the stator 300 and only exposes the pins 313 for external connection. The design forms a reliable waterproof layer for the stator, avoids short circuit caused by entering of water in the impeller cavity, the rotor cavity, the first flow passage communication, the second flow passage communication, the first flow passage and the second flow passage into the stator, and improves the use reliability of the canned motor pump. Of course, as another embodiment, referring to fig. 10, the pump body 100 'may be directly injection molded onto the stator 300' using a single injection molding process (i.e., without first injection molding the stator). The stator 300' includes an iron core, a coil frame fixed on the iron core, a winding wound on the coil frame, and an external plug-in unit in conductive communication with the winding. After the stator 300 'of this embodiment is injection molded, the pump body 100' is formed with a first water inlet channel 111 'and a second water inlet channel 112' in the same manner.
Referring to fig. 3, the second water inlet channel 112 is a 2 axial columnar pipe, the first water inlet channel 111 is a plurality of axial columnar pipes arranged along the circumferential direction, and in the same radial section, the total area of the sections of the first water inlet channel 111 is larger than the total area of the sections of the second water inlet channel 112. Of course, as other embodiments, the number of the first water inlet channels and the second water inlet channels may be 1 or more, and the total radial cross-sectional area of the first water inlet channels is only required to be larger than that of the second water inlet channels. Referring to fig. 4, the first flow channel 510 is disposed along the circumferential direction of the rear cover, and has an axial projection area smaller than that of the second flow channel 520. The design can reduce the transmission of water for absorbing the heat of the stator to the right area of the electric element arranged on the side of the back cover, which is opposite to the pump body, and avoid influencing the heat dissipation effect of the electric element arranged on the side of the back cover, which is opposite to the pump body.
Referring to fig. 9, in order to facilitate the production and processing of the rear cover 500, the rear cover 500 is a metal column, and at the upper end of the column, an M-shaped first flow channel 510 is formed along the peripheral outer edge of the rear cover, and a second flow channel 520 is provided inside the first flow channel 510, where the second flow channel 520 is a labyrinth flow channel formed by a plurality of arc-shaped flow channels that are communicated end to end.
Referring to fig. 5, the electric shielding pump with liquid cooling structure of the present invention further includes a circuit board 600 and an end cap 700. The end cap 700 is mounted on the end surface of the rear cover 500 facing away from the pump body, and encloses a mounting cavity 30 with the rear cover 500, the circuit board 600 is mounted in the mounting cavity 30, and the power element of the circuit board 600 and the rear cover 500 form heat-dissipating contact, such as close contact or spaced contact with high thermal conductivity material. The structure can radiate heat of the circuit board and avoid damage caused by water sputtering to the circuit board.
Referring to fig. 5 and 7, the rotor cavity 20 of the pump body has one end open, the other end has a bottom wall 130, the through holes 131 are axial through holes arranged on the bottom wall 130, the water inlet channels are respectively communicated with the through holes 131, and the liquid passes through the rotor cavity through the through holes 131 to flow back to the impeller cavity and is discharged. Further, the rotating shaft 210 is provided with a rotating shaft through hole 211 which penetrates through the rotating shaft through hole 131 in the axial direction, and liquid is discharged through the through hole 131 and the rotating shaft through hole 211 and penetrates through the rotor cavity to flow back to the impeller cavity, so that the heat dissipation performance of the canned motor pump is further improved.
Referring to fig. 2 and 7, the projection of the second water inlet channel 112 of the canned motor pump of the present invention at least partially coincides with the projection of the water outlet pipe 430 of the pump cover 400 in the same plane of projection perpendicular to the axis. In this design, at least a part of the second water inlet channel 112 is designed in the area where the projection of the water outlet pipe 410 of the pump cover is located, and the closer to the area where the water outlet pipe is located, the faster the flow velocity of the liquid is, at this time, the liquid can quickly pass through the second water inlet channel 112 and then enter the second flow channel 520 to dissipate heat of the circuit board 600, so as to further improve the heat dissipation effect of the circuit board. Further, a sinking first water inlet 113 is provided on the end face of the pump body 100 facing the pump cover 400, and the first water inlet 113 communicates with two adjacent first water inlet channels 111. The structure can reduce the turbulence of water flowing through the first water inlet channel in the first water inlet channel, so that water can smoothly flow through the first water inlet channel, and the heat dissipation effect of the canned motor pump is improved. Further, the end face of the pump body 100 opposite to the pump cover 400 is provided with a sunk second water inlet hole 114, and the second water inlet hole 114 communicates with the adjacent second water inlet channel 112. The structure can reduce the turbulence of water flowing through the second water inlet channel in the second water inlet channel, so that water can smoothly flow through the second water inlet channel, and the heat dissipation effect of the canned motor pump is further improved.
Referring to fig. 5, the pump cover 400 of the present invention is provided with a pump cover second flow path 420 having a radially smaller cross-sectional area along the rotation direction of the impeller 230 outside the region where the cross-sectional area of the pump cover scroll 410 is smaller, such that the pump cover scroll 410 and the pump cover second flow path 420 are combined to form a cylindrical pump cover outer circumference, wherein the pump cover second flow path 420 and the pump cover scroll 410 communicate with each other. This structure has increased the area of flow passage that feeds through first water inlet channel when guaranteeing shielding charge pump liquid flow, can set up more first water inlet channel, promotes the radiating effect to the stator.
The present invention is not limited to the above-described embodiments, but, if various modifications or variations of the present invention are not departing from the spirit and scope of the present invention, the present invention is intended to include such modifications and variations as fall within the scope of the claims and the equivalents thereof.
Claims (11)
1. The utility model provides a shielding charge pump of utensil liquid cooling structure, includes pump body (100), drives impeller (230) pivoted rotor (200), stator (300), pump cover (400) and back lid (500), pump cover (400) lid locate pump body (100) axial one end and enclose into impeller chamber (20) that hold impeller (230) rather than, back lid (500) lid locate pump body axial other end and with outer environment watertight seal, pump body (100) are including plastic layer (120) of contact pin (313) that wrap up stator (300) only expose external plug-in components (312) of stator (300), plastic layer (120) central authorities are equipped with one end open rotor chamber (10) that are used for the holding rotor, the bottom in rotor chamber (10) is equipped with through-hole (131), its characterized in that: the rear cover (500) is provided with a first flow channel (510) and a second flow channel (520) which are separated and independent, the plastic layer (120) is provided with a plurality of axial through holes (110) which axially penetrate through the stator (300), one end of each axial through hole (110) is communicated with the impeller cavity (20) to guide in liquid, the other end of each axial through hole (110) is communicated with the first flow channel (510) to form a first water inlet channel (111), the other end of the other axial through hole (110) is communicated with the second flow channel (520) to form a second water inlet channel (112), and the liquid is guided out of each of the first flow channel (510) and the second flow channel (520) through the through hole (131) to penetrate through the rotor cavity to flow back into the impeller cavity.
2. The canned motor pump with liquid cooling structure as set forth in claim 1, wherein: the axial through hole (110) is provided in a plastic layer (120) on the outer periphery of the stator (300).
3. The canned motor pump with liquid cooling structure as set forth in claim 1, wherein: the stator (300) is a plastic package stator and comprises a stator part (310) and a stator plastic package shell (320) which is injection molded on the stator part, the stator part (310) comprises a winding (311) and an external plug-in unit (312) which is in conductive communication with the winding, and the winding (311) is sealed in the stator plastic package shell (320).
4. The canned motor pump with liquid cooling structure as set forth in claim 1, wherein: in the same radial cross-section, the total area of the radial cross-section of the first water inlet channel (111) is greater than the total area of the radial cross-section of the second water inlet channel (112); the projected area of the first flow channel (510) is smaller than the projected area of the second flow channel (520).
5. The canned motor pump with liquid cooling structure as set forth in claim 1, wherein: the rear cover (500) is a columnar body made of metal, the first flow channel (510) is an M-shaped flow channel formed on the upper end surface of the rear cover along the circumferential outer edge, and the second flow channel (520) is a labyrinth flow channel formed by a plurality of arc flow channels which are communicated end to end and are positioned on the inner side of the first flow channel (510).
6. A canned motor pump with liquid cooling structure according to any of claims 1-5, characterized in that: the novel electric motor also comprises a circuit board (600) and an end cover (700), wherein the end cover (700) is covered on the end face of the rear cover (500) on the side opposite to the pump body, and an installation cavity (30) for accommodating the circuit board (600) is formed by enclosing the end cover and the rear cover (500).
7. The canned motor pump with liquid cooling structure as set forth in claim 1, wherein: the rotor (200) comprises a rotating shaft (210), the rotating shaft (210) is provided with a rotating shaft through hole (211) which penetrates through the rotating shaft in the axial direction, and the rotating shaft through hole (211) is communicated with the through hole (131).
8. The canned motor pump with liquid cooling structure as set forth in claim 1, wherein: the end face of the pump body (100) which is opposite to the pump cover (400) and is covered by the pump cover is provided with a first water inlet hole (113), and the first water inlet holes (113) are communicated with two adjacent first water inlet channels (111).
9. The canned motor pump with liquid cooling structure according to claim 1 or 8, characterized in that: the end face of the pump body (100) which is opposite to the pump cover (400) is provided with a second water inlet hole (114) which communicates two adjacent second water inlet channels (112).
10. The canned motor pump with liquid cooling structure as set forth in claim 1, wherein: in the same projection plane perpendicular to the axis, the axial projection of the second water inlet channel (112) at least partially overlaps with the axial projection of the water outlet pipe (430) provided by the pump cover (400).
11. The canned motor pump with liquid cooling structure as set forth in claim 1, wherein: the pump cover (400) comprises a pump cover volute chamber (410) and a pump cover second flow passage (420) with a gradually smaller radial section along the rotation direction of the impeller (230), and the pump cover volute chamber (410) and the pump cover second flow passage (420) are communicated with each other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210644340 | 2022-06-08 | ||
| CN2022106443402 | 2022-06-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117189619A true CN117189619A (en) | 2023-12-08 |
Family
ID=89004099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310670803.7A Pending CN117189619A (en) | 2022-06-08 | 2023-06-07 | Shielding electric pump with liquid cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117189619A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0968194A (en) * | 1995-08-31 | 1997-03-11 | Ebara Corp | Canned motor pump |
| JP2005330877A (en) * | 2004-05-19 | 2005-12-02 | Asmo Co Ltd | Canned motor pump |
| US20100272592A1 (en) * | 2009-04-28 | 2010-10-28 | Huan-Jan Chien | Structural improvement of a canned motor pump |
| CN110195706A (en) * | 2018-02-25 | 2019-09-03 | 常州迪卡奔机电有限公司 | A kind of electronic water pump to be radiated using itself medium |
| CN113898612A (en) * | 2020-07-06 | 2022-01-07 | 江门市甜的电器有限公司 | Miniature centrifugal canned motor pump |
| CN216111292U (en) * | 2021-01-26 | 2022-03-22 | 汉宇集团股份有限公司 | Shielding electric pump with motor shaft two-end transmission pump structure |
| CN114483598A (en) * | 2020-11-13 | 2022-05-13 | 汉宇集团股份有限公司 | Centrifugal canned motor type canned motor pump with coolant liquid inner loop |
-
2023
- 2023-06-07 CN CN202310670803.7A patent/CN117189619A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0968194A (en) * | 1995-08-31 | 1997-03-11 | Ebara Corp | Canned motor pump |
| JP2005330877A (en) * | 2004-05-19 | 2005-12-02 | Asmo Co Ltd | Canned motor pump |
| US20100272592A1 (en) * | 2009-04-28 | 2010-10-28 | Huan-Jan Chien | Structural improvement of a canned motor pump |
| CN110195706A (en) * | 2018-02-25 | 2019-09-03 | 常州迪卡奔机电有限公司 | A kind of electronic water pump to be radiated using itself medium |
| CN113898612A (en) * | 2020-07-06 | 2022-01-07 | 江门市甜的电器有限公司 | Miniature centrifugal canned motor pump |
| CN114483598A (en) * | 2020-11-13 | 2022-05-13 | 汉宇集团股份有限公司 | Centrifugal canned motor type canned motor pump with coolant liquid inner loop |
| CN216111292U (en) * | 2021-01-26 | 2022-03-22 | 汉宇集团股份有限公司 | Shielding electric pump with motor shaft two-end transmission pump structure |
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