CN2563332Y - Electric submersible pump - Google Patents
Electric submersible pump Download PDFInfo
- Publication number
- CN2563332Y CN2563332Y CN 02271570 CN02271570U CN2563332Y CN 2563332 Y CN2563332 Y CN 2563332Y CN 02271570 CN02271570 CN 02271570 CN 02271570 U CN02271570 U CN 02271570U CN 2563332 Y CN2563332 Y CN 2563332Y
- Authority
- CN
- China
- Prior art keywords
- cover
- motor shaft
- stator module
- mesochite
- impeller
- 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.)
- Expired - Fee Related
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model provides an electric submersible pump, consisting of a rotor component, a stator component, a front cover, a middle cover, a gland bush and an impeller, wherein, the rotor component consists of shielded magnetic steel and magnet; the stator component consists of a supporting plate, a coil, a frame of coil and a circuit board. The utility model is characterized in that: the middle cover is a structure of a ring groove; the stator component is arranged inside the ring groove of the middle cover and is completely sealed by sealing material; the shielded magnetic steel and magnet of the rotor component are closely connected with each other through two flanges on the end part of a plastic core cover; one end of a motor shaft is fixed on the front cover; the plastic core cover which is sleeved on the motor shaft and passes through a center hole of the middle cover and is connected with a impeller inside the gland bush; the rotor component and the stator component are arranged side by side along the axial direction. The electric submersible pump is made by adopting a brushless electric machine with some improvements. Compared with the prior submersible pumps, the utility model has the advantages of simple structure, high accuracy of rotation, good leak tightness, high rotate speed, great torque, long service life and wide range of application.
Description
Affiliated technical field
The utility model relates to water pump, particularly a kind of submersible electrical water pump of the driven by motor that drives with brushless electric machine.
Background technique
In traditional similar submersible pump, mostly adopt following two kinds of structural types: 1, adopt the common direct impeller rotation of brush direct current generator that has, this form requires very strict to the overall tightness of water pump, so its seal structure complex, it is many unfavorable to bring to manufacturing process, though adopt oil sealing to seal, have simple in structure, advantage easy for installation, but sealing is unreliable, and also the friction of oil sealing and axle can cause the pump power loss to increase; 2, adopt the common magnet rotation of brush direct current generator drive that has, then, magnet drives other one and is embedded in magnet rotation in the impeller thus again, thereby realized that impeller separates with motor, help the sealing of water pump, but because many intermediate conversion mechanisms make the efficient of water pump obviously reduce, cost also obviously improves; And above two kinds of structures brush and conductive hoop that a common fatal part is all arranged is exactly motor damage easily, causes the water pump life-span to be difficult to reach designing requirement.Though brushless electric machine comes out, and be applied on the household electric appliance,, can't be used for submersible pump because sealing problem is not resolved.
Summary of the invention
The purpose of this utility model is to solve the defective that the conventional motors submersible pump exists, and is that the basis makes improvements with the brushless electric machine, and a kind of simple in structure, good airproof performance is provided, and manufacturing and the high submersible electrical water pump of electric efficiency newly design easily.
Above-mentioned task realizes by this way: this submersible pump is by rotor assembly, stator module, motor shaft, cover, mesochite, gland and impeller are formed, rotor assembly is made up of shielding magnet steel and magnet steel, stator module is by support plate, coil, wire frame and circuit board are formed, it is characterized in that mesochite is an annular groove type structure, stator module is arranged in the annular groove of mesochite, and it is hermetically sealed with sealing material, the shielding magnet steel of rotor assembly and magnet closely link together by two flanges of a plastics core retainer plate end, motor shaft is anchored on the cover with the one end, the plastic core cover is socketed on the motor shaft, and pass the mesochite center hole and place the interior impeller of gland to be connected, rotor assembly and stator module are axially side-by-side.
The purpose of this utility model also can take following measure to realize:
Described sealing material is epoxy resin and polyamine ester.
Air gap distance between stator module and the rotor assembly is suitable with 0.5～2.0 millimeter, and air gap distance is too small, and manufacturability is bad, is difficult to control; Reduce the power of motor when excessive apart from increase because of both.
Working principle of the present utility model is very simple, as brushless electric machine, just produces rotating magnetic field behind the coil electricity of stator module, promotes the magnet rotation and passes through a plastic core impeller rotation, thereby realize the pump water effect of water pump.The utility model is compared with existing diving magnetic has following advantage:
1, adopts brushless motor structure, make motor have characteristics such as rotating speed height, torque is big, the life-span is long;
2, adopt motor shaft static, rotor around the rotating mode of structure of motor shaft, can save two bearings by core retainer plate, makes simple in structurely, and has good rotation precision;
3, stator is hermetically sealed, good airproof performance;
4, the employed voltage of the utility model can be the high low pressure of alternating direct-current, so its using scope is wide.
Description of drawings
Fig. 1 is the sectional view of a kind of concrete structure of the utility model.
Fig. 2 is the front view of stator module among Fig. 1 (2).
Embodiment
As shown in Figure 1, mesochite 1 is a circular shell that has annular groove, and stator module 2 is arranged in the annular groove, and makes sealing material 3 with epoxy resin and carry out hermetically sealedly, and its surperficial sealing layer thickness should be controlled in 0.5～1.0 scope.As shown in Figure 2, stator module is arranged at four coils 5 on the support plate by support plate 4, and the wire frame 6 of fixed coil 5 and circuit board 7 constitute.As shown in Figure 1, the rotor assembly 10 that is made of shielding magnet steel 8 and magnet 9 passes through
Two flanges of plastics core retainer plate 11 ends will shield magnet steel 8 and magnet 9 links together.Number of magnetic poles on the magnet steel 9 equates with the number of stitches of stator module 2, realizes by radial magnetizing, and its two neighboring pole is that the opposite sex gets final product.Motor shaft 12 is fixed on the cover 13, after plastics core retainer plate 11 is placed on the motor shaft 12, cover 13 is anchored on the mesochite, and the center hole and the impeller 14 that allow plastics core retainer plate 11 pass mesochite 1 links together.At last, the gland 15 that has water intake and water outlet is linked together with mesochite 1 just can.
Claims (3)
1, a kind of submersible electrical water pump, by rotor assembly (10), stator module (2), motor shaft (12), cover (13), mesochite (1), gland (15) and impeller (14) are formed, rotor assembly (10) is made up of shielding magnet steel (8) and magnet steel (9), stator module (2) is by support plate (4), coil (5), wire frame (6) and circuit board (7) are formed, it is characterized in that mesochite (1) is annular groove type structure, stator module (2) is arranged in the annular groove of mesochite (1), and it is hermetically sealed with sealing material (3), the shielding magnet steel (8) of rotor assembly (10) and magnet (9) closely link together by two flanges of a plastics core retainer plate (11) end, motor shaft (12) is anchored on the cover (13) with the one end, plastics core retainer plate (11) is socketed on the motor shaft (12), and pass mesochite (1) center hole and place the impeller (14) in the gland (15) to be connected, rotor assembly (10) and stator module (2) are axially side-by-side.
2, submersible electrical water pump according to claim 1 is characterized in that described sealing material (3) is epoxy resin, polyamine ester.
3, submersible electrical water pump according to claim 1, the thickness that it is characterized in that stator module (2) and changeed the air gap distance between the assembly (10) is 0.5～2.0 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02271570 CN2563332Y (en) | 2002-07-08 | 2002-07-08 | Electric submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02271570 CN2563332Y (en) | 2002-07-08 | 2002-07-08 | Electric submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2563332Y true CN2563332Y (en) | 2003-07-30 |
Family
ID=33736405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02271570 Expired - Fee Related CN2563332Y (en) | 2002-07-08 | 2002-07-08 | Electric submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2563332Y (en) |
-
2002
- 2002-07-08 CN CN 02271570 patent/CN2563332Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |