CN209990649U - Self-heat-dissipation water pump - Google Patents
Self-heat-dissipation water pump Download PDFInfo
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- CN209990649U CN209990649U CN201920234066.5U CN201920234066U CN209990649U CN 209990649 U CN209990649 U CN 209990649U CN 201920234066 U CN201920234066 U CN 201920234066U CN 209990649 U CN209990649 U CN 209990649U
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Abstract
The utility model discloses a from heat dissipation formula water pump relates to the technical field of water pump. This water pump includes the motor and the pump body, the motor includes: the motor inner shell is of a hollow cavity structure and forms a rotor cavity for placing a motor rotor; the motor outer shell is coaxially arranged with the motor inner shell and matched with the motor inner shell to form a closed space for placing a motor stator; and the heat dissipation channel consists of at least two water passing channels which are communicated with the rotor cavity and the external environment of the motor and the rotor cavity, and a water flow passage is formed to take away heat generated in the motor. The heat generated inside the motor is taken away by utilizing the water flow outside the water pump motor, the self-radiating effect of the motor is realized, the radiating performance of the motor is improved, the whole weight and the size of the water pump are reduced, and the manual carrying is convenient.
Description
Technical Field
The utility model relates to a technical field of water pump, more specifically say, it relates to a from heat dissipation formula water pump.
Background
Water pumps are machines that deliver or pressurize a liquid. It transfers the mechanical energy of prime mover or other external energy to liquid to increase the energy of liquid, mainly used to transport liquid including water, oil, acid-base solution, emulsion, suspoemulsion and liquid metal.
The motor is the core part of water pump, plays decisive role to the work efficiency of water pump. In the situations of armed police fire control, river emergency rescue and the like, a high-power and large-flow water pump is indispensable. According to the power calculation formula P = U × I, when the voltage value U is fixed, the motor power and the current are in a direct proportion relation, and the heat calculation formula Q = I is combined2And R and T show that when the resistance value R and the time T are fixed, the current of the motor is in a direct proportion relation with the heat. In summary, it is assumed that to increase the motor power, the current of the motor needs to be increased, and the heat generation amount of the stator coil of the motor stator increases as the current increases. If the heat is too high, the stator coil of the stator of the motor can be burnt, the motor is damaged, and the water pump cannot work normally. The existing equipment needs to increase the cross-sectional area of a stator coil forming a motor stator in order to reduce the heat generated by the motor according to a resistance calculation formula R = rho L/S, but the increase of the cross-sectional area of the stator coil of the motor stator can lead to the increase of the whole volume and weight of the motor, and the weight of the motor stator reaches hundreds of kilograms, so that the motor stator can be carried by many people, is inconvenient to transport and is not beneficial to emergency situations such as armed police fire control and river channel emergency rescue.
SUMMERY OF THE UTILITY MODEL
To high-power water pump increase the water pump body volume in the in-service use in order to promote the radiating effect, and then lead to this problem of difficult transport of water pump, the utility model aims to provide a from heat dissipation formula water pump takes away the heat that the motor inside produced through utilizing the outside rivers of motor, realizes from radiating effect to reduce motor weight and volume, concrete scheme is as follows:
the utility model provides a from heat dissipation formula water pump, includes the motor and the pump body, the motor includes: the motor inner shell is of a hollow cavity structure and forms a rotor cavity for placing a motor rotor; the motor outer shell is coaxially arranged with the motor inner shell and matched with the motor inner shell to form a closed space for placing a motor stator; and the heat dissipation channel consists of at least two water passing channels which are communicated with the rotor cavity and the external environment of the motor and the rotor cavity, and a water flow passage is formed to take away heat generated in the motor.
Through the technical scheme, the motor stator is of a sealing structure, so that the motor can work underwater. Through setting up water channel, with rotor cavity and external environment are linked together, form a rivers route in the rotor cavity in order to take away the heat that the motor inside produced, effectively reduced the inside temperature of motor. Synthesize this scheme, then need not increase the cross-sectional area that constitutes the stator coil of motor stator and reduce the heat, can reduce the volume of water pump and reduce the weight of water pump to in the emergency of speedily carrying the water pump by the manual work in emergency.
Further, the pump body includes: the impeller shell is of a hollow cavity structure, has openings at two ends, and is coaxially arranged with the motor and fixedly connected with the motor; the impeller is arranged at an opening at one end of the impeller shell and is matched with the opening to form a water inlet, and the impeller is coaxially connected with a rotating shaft of the motor in a transmission manner; the number of the water passing channels is two and the water passing channels are respectively arranged at two ends of the rotor cavity.
Through the technical scheme, the motor drives the impeller to rotate through the rotating shaft, the impeller drives water flow to flow along the cavity of the impeller shell by utilizing centrifugal force, and the high-power motor water pump can generate large suction force. Will water passing channel set up in rotor cavity both ends form the rivers route along the axial of rotor cavity, and the high-efficient quick circulation of rivers that water pump suction can more effectual drive external environment in the rotor cavity to continuously take away the heat that the motor produced, reduce motor temperature.
Furthermore, a plurality of water flowing channels are uniformly arranged on a rotor core of the motor rotor around the axial direction of the rotor core, and the plurality of water flowing channels are communicated with the heat dissipation channel.
Through above-mentioned technical scheme, can avoid electric motor rotor's rotor core to obstruct rivers and flow along heat dissipation channel, increased electric motor rotor and the area of contact of rivers simultaneously, be favorable to rivers to take away the heat that the motor is inside to be produced, and a plurality of the flowing water passageway is evenly set up around the rotor axial, and is right when making electric motor rotor rotatory operation inner wall produces relatively even power in the motor to the whole function performance of stable motor.
Furthermore, the motor is characterized in that a stator coil of the motor stator is electrically connected with a waterproof cable plug, and the cable plug is arranged on the motor outer shell.
Through the technical scheme, the cable arranged outside is convenient for plug insertion.
Furthermore, a first filter screen for filtering sundries is arranged in the water passing channel.
Through the technical scheme, the first filter screen can effectively prevent sundries in the external environment of the motor from entering the water passing channel and the rotor cavity, so that the blockage of the water passing channel is avoided, the rotor cavity cannot be communicated with the external environment of the motor, and a water flow channel cannot be formed in the rotor cavity to cool the interior of the motor.
Furthermore, a second filter screen for filtering sundries is arranged at the water inlet.
Through the technical scheme, the second filter screen can effectively prevent sundries outside the motor from blocking the water inlet or winding on the impeller, so that the sundries are prevented from influencing the work of the impeller and then influencing the suction force generated by the impeller, the high-speed flow of water flow in the water channel is ensured, and the internal temperature of the motor is reduced.
Furthermore, two ends of the rotor cavity and the motor outer shell are detachably arranged to be sealing end covers for sealing the rotor cavity; the two water passing channels are respectively arranged on the sealing end covers at the two ends of the rotor cavity.
Through the technical scheme, the detachable sealing end cover is beneficial to the motor to replace the motor rotor, and when the flowing water of the heat dissipation channel needs to be increased so as to reduce the heat generated in the motor, the sealing end cover with the water passing channel with the larger diameter can be detached and replaced, so that the large-flow water source enters the heat dissipation channel and takes away the heat generated in the motor.
Furthermore, a rotor blade is arranged in the rotor cavity and is positioned on a rotating shaft of the motor.
Through the technical scheme, the motor drives the rotor fan blades to rotate through the rotating shaft to generate centrifugal force, so that flowing water outside the motor flows through the rotor cavity more quickly and effectively, heat generated inside the motor is taken away, and the interior of the motor is cooled.
Compared with the prior art, the beneficial effects of the utility model are as follows:
(1) the water passing channel is arranged to communicate the rotor cavity with the external environment of the motor, so that water flow can pass through the rotor cavity and take away heat generated inside the motor, the water pump has a self-heat-dissipation function, the cross section area of a stator coil forming a stator of the motor does not need to be increased to reduce the heat generated inside the motor, the weight and the importance of the motor are effectively reduced, and manual carrying is facilitated in an emergency rescue situation;
(2) through being in water channel sets up motor cavity both ends to and set up water channel, rotor fan blade and end cover, be more favorable to the high-efficient fast circulation of the outside rivers of motor is in the rotor cavity and takes away the heat that the motor inside produced, carries out better heat dissipation cooling to the motor, with the volume and the weight that reduce the motor.
Drawings
FIG. 1 is a schematic view of a self-cooling water pump;
FIG. 2 is an exploded view of the self-dissipating water pump body along its length;
FIG. 3 is an exploded view of a self-dissipating water pump motor along its length;
FIG. 4 is a schematic view of a self-dissipating water pump motor rotor;
FIG. 5 is a schematic view of a sealing end cap of a self-cooling water pump;
FIG. 6 is an enlarged view of portion A of FIG. 5;
fig. 7 is a schematic view of a self-radiating water pump rotor blade.
Reference numerals: 1. a motor; 2. a pump body; 3. a motor inner housing; 4. a motor outer housing; 5. a motor rotor; 6. a rotor cavity; 7. a motor stator; 8. a heat dissipation channel; 9. a water passage; 10. an impeller housing; 11. an impeller; 12. a water flow channel; 13. a cable plug; 14. a first filter screen; 15. a water inlet; 16. sealing the end cap; 17. rotor fan blade.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.
Referring to fig. 1 and 2, a self-heat-dissipation water pump includes a motor 1 and a pump body 2. The electric machine 1 comprises a housing and a machine rotor 5 arranged in the housing (see fig. 4).
As shown in fig. 3, the housing includes a motor inner housing 3 having a hollow cavity structure, and a motor outer housing 4 coaxially disposed with the motor inner housing 3. A rotor cavity 6 for placing the motor rotor 5 is formed in the motor inner housing 3. The motor rotor 5 and the rotating shaft are arranged in the rotor cavity 6, and the motor rotor 5 is coaxially and fixedly connected with the rotating shaft.
The motor outer shell 4 and the motor inner shell 3 are matched to form a closed space for placing the motor stator 7. Set up to airtight space through the space that will place motor stator 7, can make the water pump work under water, can not lead to motor stator 7 to meet dangerous condition such as emergence circuit short circuit behind the water.
The heat dissipation channel 8 is composed of at least two water passing channels 9 communicating the rotor cavity 6 with the external environment of the motor 1 and the rotor cavity 6. When the self-radiating water pump works underwater, one water passing channel 9 can bring water flow outside the motor 1 into the rotor cavity 6 and flow out through the other water passing channel 9, a water flow passage is formed to take away heat generated inside the motor 1, and the temperature inside the motor 1 is effectively reduced. Based on this setting, can need not reduce the heat that the inside produced of motor 1 through the cross-sectional area of the stator coil that the increase constitutes motor stator 7, and then can reduce to the water pump volume and the weight that alone can move the transport on the back, effectively raise the efficiency in emergency such as armed police fire control, river emergency.
Furthermore, in order to enable water flow outside the motor 1 to flow in the rotor cavity 6 more efficiently and rapidly, the two water passing channels 9 are respectively arranged at two ends of the rotor cavity 6, and the water pump body 2 is arranged at one end of the rotor cavity 6. The pump body 2 comprises an impeller shell 10 which is a hollow cavity structure and has openings at two ends, and is coaxially arranged with and fixedly connected with the motor 1. The impeller 11 is arranged at an opening at one end of the impeller shell 10, and is matched with the opening to form a water inlet 15, and the impeller 11 is in coaxial transmission connection with a rotating shaft of the motor 1. When the self-radiating water pump works, the motor 1 drives the impeller 11 to rotate through the rotating shaft, the impeller 11 rotates to generate centrifugal force, and the external flowing water of the motor 1 is driven to flow through the rotor cavity 6 more efficiently and quickly so as to continuously take away heat generated by the motor 1 and reduce the temperature of the motor 1.
Referring to fig. 4, in order to prevent the motor rotor 5 from blocking water flow along the heat dissipation channel 8, a plurality of water flow channels 12 are uniformly arranged on the rotor core of the motor rotor 5 around the rotor axial direction, and the water flow channels 12 are communicated with the heat dissipation channel 8. The water flow channel 12 not only increases the contact area of the motor rotor 5 and water flow, but also is more beneficial to the water flow to take away heat generated inside the motor 1. Because a plurality of the water flow channels 12 are uniformly arranged, the motor rotor 5 generates relatively uniform force on the inner wall of the motor inner shell 3 when rotating, and the overall operation performance of the motor 1 is stabilized.
Referring to fig. 5 and 6, in order to prevent impurities in the external environment of the motor 1 from entering the water passing channel 9 and the rotor cavity 6, a first filter screen 14 for filtering impurities is disposed in the water passing channel 9. Meanwhile, in order to prevent impurities outside the motor 1 from blocking the water inlet 15 or winding the impurities on the impeller 11, a second filter screen for filtering the impurities is arranged at the water inlet 15 (the second filter screen is omitted in the attached drawings in order to avoid the second filter screen from blocking the device drawing). Based on the arrangement, the heat dissipation channel 8 is smooth, so that flowing water outside the motor 1 continuously flows through the rotor cavity 6 to take away heat generated inside the motor 1, the temperature inside the motor 1 is reduced, the quality of the water pump body 2 is further reduced, and the weight of the water pump is further reduced.
When the water inlet amount of the water channel 9 is not enough to satisfy the heat dissipation amount of the heat dissipation manner, the diameter of the water channel 9 may be increased to increase the amount of the water passing through the rotor cavity 6. For realizing the above effect, the utility model discloses in 6 both ends of rotor cavity with motor housing body 4 can be dismantled and set up to be used for inclosed the end cover 16 of rotor cavity 6. Two water passing channels 9 are respectively arranged on the sealing end covers 16 at two ends of the rotor cavity 6, the sealing end covers 16 with the larger-diameter water passing channels 9 can be detached and replaced, the water passing amount of the rotor cavity 6 is conveniently and effectively increased, and the detachable sealing end covers 16 are favorable for replacing the motor rotor 5 of the motor 1.
In order to further enhance the effect that water outside the motor 1 flows into the rotor cavity 6 to take away heat generated inside the motor 1, rotor blades (see fig. 7) are arranged in the rotor cavity 6 and are in coaxial transmission connection with a rotating shaft of the motor 1. The motor rotor 5 drives the rotor fan blades to rotate through the rotating shaft to generate centrifugal force, so that flowing water outside the motor 1 flows through the rotor cavity 6 more quickly and effectively, heat generated inside the motor 1 is taken away, and the interior of the motor 1 is cooled.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a from heat dissipation formula water pump, includes motor (1) and pump body (2), its characterized in that, motor (1) includes:
the motor inner shell (3) is of a hollow cavity structure and forms a rotor cavity (6) for placing a motor rotor (5);
the motor outer shell (4) is coaxially arranged with the motor inner shell (3) and is matched with the motor inner shell (3) to form a closed space for placing a motor stator (7);
and the heat dissipation channel (8) consists of at least two water passing channels (9) which are communicated with the rotor cavity (6) and the external environment of the motor and the rotor cavity (6), and a water flow passage is formed to take away heat generated in the motor.
2. The self-dissipating water pump according to claim 1, wherein the pump body (2) includes:
the impeller shell (10) is of a hollow cavity structure, has openings at two ends, and is coaxially arranged with the motor (1) and fixedly connected with the motor;
the impeller (11) is arranged at an opening at one end of the impeller shell (10), a water inlet (15) is formed by matching with the opening, and the impeller (11) is in coaxial transmission connection with a rotating shaft of the motor (1);
the number of the water passing channels (9) is two and the water passing channels are respectively arranged at two ends of the rotor cavity (6).
3. The self-heat-dissipation water pump according to claim 2, wherein a plurality of water flow channels (12) are uniformly arranged on the rotor core of the motor rotor (5) around the axial direction thereof, and the plurality of water flow channels (12) are communicated with the heat dissipation channel (8).
4. The self-dissipating water pump according to claim 1, wherein the stator coil of the motor stator (7) is electrically connected to a waterproof cable plug (13), and the cable plug (13) is disposed on the motor outer housing (4).
5. The self-heat-dissipation water pump according to claim 1, wherein a first filter screen (14) for filtering impurities is arranged in the water passing channel (9).
6. The self-heat-dissipation water pump according to claim 2, wherein a second filter screen for filtering impurities is arranged at the water inlet (15).
7. The self-radiating water pump according to claim 1, wherein both ends of the rotor cavity (6) and the motor outer shell (4) are detachably arranged to form a sealing end cover (16) for sealing the rotor cavity;
the two water passing channels (9) are respectively arranged on the sealing end covers (16) at the two ends of the rotor cavity (6).
8. The self-heat-dissipation water pump according to claim 2, wherein rotor blades (17) are arranged in the rotor cavity (6), and the rotor blades (17) are located on a rotating shaft of the motor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920234066.5U CN209990649U (en) | 2019-02-22 | 2019-02-22 | Self-heat-dissipation water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920234066.5U CN209990649U (en) | 2019-02-22 | 2019-02-22 | Self-heat-dissipation water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209990649U true CN209990649U (en) | 2020-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920234066.5U Expired - Fee Related CN209990649U (en) | 2019-02-22 | 2019-02-22 | Self-heat-dissipation water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209990649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111355343A (en) * | 2020-04-01 | 2020-06-30 | 江苏金彭集团有限公司 | Motor heat dissipation device |
-
2019
- 2019-02-22 CN CN201920234066.5U patent/CN209990649U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111355343A (en) * | 2020-04-01 | 2020-06-30 | 江苏金彭集团有限公司 | Motor heat dissipation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200124 Termination date: 20210222 |