CN112696382A

CN112696382A - Thin pump

Info

Publication number: CN112696382A
Application number: CN201911171104.8A
Authority: CN
Inventors: 洪银树; 洪诚远; 李明聪
Original assignee: Sunonwealth Electric Machine Industry Co Ltd
Current assignee: Sunonwealth Electric Machine Industry Co Ltd
Priority date: 2019-10-23
Filing date: 2019-11-26
Publication date: 2021-04-23
Anticipated expiration: 2039-11-26
Also published as: TWI747065B; TW202117188A; CN112696382B

Abstract

The present invention relates to a thin pump, which includes: a first housing, a partition, a motor, an impeller and a second housing; the first housing has a flow channel; the partition has a first chamber and a second chamber, the first chamber is connected to the flow channel; the motor has a rotor and a stator, the rotor is arranged in the first chamber, and the stator is arranged in the second chamber; the impeller is connected to the rotor and arranged in the first chamber; the second housing is arranged on one side of the second chamber of the partition. Therefore, by using the flow channel structure of the thin pump of the present invention, the flow route of the fluid can be effectively planned, and no complicated structural design is required to achieve the effect of reducing the volume and thinning.

Description

Thin pump

Technical Field

The present invention relates to a pump, and more particularly to a thin pump.

Background

The known thin pump is usually a water pump, and mainly controls the circulation of fluid such as cooling water, so as to dissipate heat of various products on the market that are likely to generate high temperature during operation.

In addition, the conventional water pump can be applied to various units (such as a cooling box, a water tank or a heat dissipation system of an electronic product), so how to avoid occupying too much space of the various units when the conventional water pump is installed must be considered; in addition, since the electronic products are developed toward the trend of reducing the volume, the heat dissipation system of the electronic products must be designed to be thin to reduce the size of the electronic products, so as to facilitate the installation of the electronic products.

Disclosure of Invention

The invention aims to provide a thin pump which can achieve the effects of reducing the volume and thinning.

To achieve the above object, the present invention provides a thin pump. In one embodiment, the low profile pump comprises: a first housing, a partition, a motor, an impeller, and a second housing; the first shell is provided with a flow passage; the separator is provided with a first chamber and a second chamber, and the first chamber is communicated with the flow channel; the motor is provided with a rotor and a stator, the rotor is arranged in the first cavity, and the stator is arranged in the second cavity; the impeller is connected with the rotor and arranged in the first cavity; the second housing is disposed at one side of the second chamber of the partition.

Therefore, the flow passage structure of the thin pump can effectively plan the flow path of the fluid without complex structural design, thereby achieving the effects of reducing the volume and thinning.

Drawings

The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:

FIG. 1 is a perspective view of a thin pump according to an embodiment of the present invention;

FIG. 2 is an exploded perspective view of the first housing and the partition of the low profile pump of one embodiment of the present invention;

FIG. 3 is an exploded perspective view of the first housing, the partition and the second housing of the low profile pump of the present invention;

FIG. 4 is an exploded perspective view of a second housing and a divider of the low profile pump of one embodiment of the present invention;

FIG. 5 is an exploded perspective view of the motor, the partition and the second housing of the low profile pump of the present invention;

FIG. 6 is a schematic diagram showing a partial cross-sectional view of a low profile pump in accordance with an embodiment of the invention;

FIG. 7 is a perspective view of a thin pump according to another embodiment of the present invention;

FIG. 8 is an exploded perspective view of the first housing and the divider of the low profile pump of another embodiment of the present invention;

FIG. 9 is a schematic view, partially in cross-section, of a thin pump according to another embodiment of the present invention; and

FIG. 10 is a schematic cross-sectional view of a thin pump according to another embodiment of the present invention.

The reference numbers illustrate:

1 thin type pump

10 first casing

11 flow passage

12 runner groove

13 cover plate

131 first shaft base

14 first side

141 notch

15 second side

151 first shaft base

16. 17 side wall

18 groove plate

19 cover part

20 separating element

21 first chamber

211 first chamber

212 second chamber

213 second axle seat

22 second chamber

221 third chamber

222 fourth chamber

23 first side of

24 second side

25 inlet

26 outlet

27 first end face

28 second end face

31 first channel

32 second channel

33 block

331 tapered structure

34 first seal

35 second seal

36 third seal

40 Motor

41 rotor

412 bearing

414 permanent magnet

415 guard

42 stator

421 windings

422 circuit board

43 center shaft

44 shim

50 impeller

60 second housing

Detailed Description

In order to clearly understand the technical solution, the purpose and the effect of the present invention, a detailed description of the present invention will be described with reference to the accompanying drawings.

Fig. 1 is a perspective view of a thin pump according to an embodiment of the present invention. Fig. 2 is an exploded perspective view of the first housing and the partition of the thin pump according to an embodiment of the present invention. Fig. 3 is an exploded perspective view of the first housing, the partition and the second housing of the thin pump according to an embodiment of the present invention. Fig. 4 is an exploded perspective view of the second housing and the partition of the low profile pump according to an embodiment of the present invention. Fig. 5 is an exploded perspective view of the motor, the partition and the second housing of the thin pump according to an embodiment of the present invention. FIG. 6 is a schematic cross-sectional view of a thin pump according to an embodiment of the invention. Referring to fig. 1 to 6, the thin pump 1 of the present invention includes: a first housing 10, a partition 20, a motor 40, an impeller 50, and a second housing 60. In one embodiment, the thin pump 1 of the present invention can be disposed in an environment with a fluid, such as coolant, water, lubricant … …, for example: a cooling system, a pumping system, etc. for controlling the fluid to be sucked and discharged in a circulating manner, but the present invention is not limited thereto, and the thin pump 1 may be applied to other suitable applications.

In one embodiment, the first housing 10 has a flow channel 11. The partition 20 has a first chamber 21 and a second chamber 22, and the first chamber 21 is connected to the flow channel 11. The partition 20 further includes a first side 23 and a second side 24, the first chamber 21 is disposed on the first side 23, and the second chamber 22 is disposed on the second side 24, that is, the first chamber 21 and the second chamber 22 are disposed on the first side 23 and the second side 24, respectively.

In one embodiment, the motor 40 has a rotor 41 and a stator 42, the rotor 41 is disposed in the first chamber 21, and the stator 42 is disposed in the second chamber 22. The impeller 50 is connected to the rotor 41 and disposed in the first chamber 21. The second housing 60 is disposed at one side of the second chamber 22 of the partition 20.

In one embodiment, the separator 20 further includes an inlet 25, an outlet 26, a first end 27 and a second end 28, the inlet 25 is disposed on the first end 27, and the outlet 26 is disposed on the second end 28. In one embodiment, the partition 20 further includes a first channel 31, the first channel 31 connects the inlet 25 and the flow channel 11, and the width of the first channel 31 gradually increases from the inlet 25 to the flow channel 11. In one embodiment, the partition 20 further includes a second channel 32, the second channel 32 communicates with the outlet 26 and the first chamber 21, and the width of the second channel 32 is gradually reduced from the first chamber 21 to the outlet 26.

In one embodiment, the partition 20 further includes a block 33, the block 33 is disposed in the second channel 32, and the block 33 has a tapered structure 331. As shown in fig. 2, the block 33, shown in dashed lines, is oriented to taper the first chamber 21 to the outlet 26; the block 33 shown in solid lines is used to show the tapered structure 331.

In one embodiment, the first housing 10 further includes a channel groove 12 and a cover plate 13, and the cover plate 13 is disposed on the channel groove 12 to form the channel 11. The first casing 10 further includes a first surface 14 and a second surface 15, the first surface 14 has a notch 141, the runner groove 12 is disposed at a position opposite to the notch 141, and a space of the runner 11 is formed between the cover plate 13 and the runner groove 12 (see fig. 6).

In one embodiment, the cover 13 is used to close the slot 141. The cover 13 is bonded to the first housing 10 by laser welding to close the notch 141, thereby forming the flow channel 11. By using the flow channel 11, the fluid can smoothly enter the first chamber 21 through the inlet 25, the first channel 31 and the flow channel 11. In addition, the flow path 11 is disposed in the first housing 10, so that the flow path of the fluid can be effectively planned, and the effects of reducing the volume and thinning can be achieved without a complicated structural design.

In one embodiment, the motor 40 further comprises a central shaft 43 and at least one spacer 44, the rotor 41 having a bearing 412 and a permanent magnet 414; the bearing 412 is disposed in the center of the impeller 50, the central shaft 43 is disposed in the bearing 412, and the gasket 44 is sleeved on the central shaft 43, so that the central shaft 43 extends through the impeller 50, and the central shaft 43 can be positioned in the impeller 50 by using the gasket 44; the permanent magnet 414 is disposed at one side of the impeller 50.

In one embodiment, the bearing 412 can be wrapped by the impeller 50 when the impeller 50 is injection molded; alternatively, the bearing 412 is tightly fitted to the center of the impeller 50. In one embodiment, the first chamber 21 includes a first chamber 211, the first chamber 211 being configured to receive the impeller 50; the first chamber 21 further comprises a second chamber 212, the second chamber 212 being configured to receive the permanent magnet 414; by using the layered design of the first chamber 211 and the second chamber 212 of the first chamber 21, the volume can be further reduced to achieve the effect of thin-type.

In one embodiment, the cover plate 13 further includes a first shaft seat 131, the first shaft seat 131 is used for fixing the central shaft 43, the second chamber 212 further includes a second shaft seat 213, the second shaft seat 213 is used for fixing the central shaft 43, so that the central shaft 43 is fixed to the first shaft seat 131 and the second shaft seat 213, the bearing 412 and the permanent magnet 414 of the rotor 41 rotate relative to the central shaft 43 and drive the impeller 50 to rotate, so as to drive the fluid in the first chamber 21 to flow.

In one embodiment, the stator 42 has a winding 421 and a circuit board 422, and the winding 421 is electrically connected to the circuit board 422. The second chamber 22 includes a third chamber 221, and the third chamber 221 is annular to receive the winding 421. The second chamber 22 further includes a fourth slot chamber 222, and the fourth slot chamber 222 is used for accommodating the circuit board 422. The cylindrical protrusion at the center of the third slot chamber 221 corresponds to the space of the first cavity 21 where the second slot chamber 212 accommodates the permanent magnet 414, and the winding 421 is disposed around the permanent magnet 414, so that the winding 421 and the permanent magnet 414 can interact with each other, and the volume can be further reduced, thereby achieving the effect of thinning.

In one embodiment, the partition 20 further comprises a first seal 34, wherein the first seal 34 is disposed at the periphery of the first chamber 21 to prevent the fluid in the first chamber 21 from flowing out. The partition 20 further includes a second sealing member 35, and the second sealing member 35 is disposed at the periphery of the first side 23 to prevent the fluid in the first channel 31 and the second channel 32 from flowing out. In one embodiment, the first seal 34 and the second seal 35 may be integrated into a single seal. In one embodiment, the separator 20 further includes a third sealing member 36, and the third sealing member 36 is disposed at the periphery of the second side surface 24 to protect the winding 421 and the circuit board 422.

In one embodiment, the first housing 10 further comprises a cover 19, the cover 19 is used for covering the first cavity 21; the covering portion 19 protrudes from the second surface 15, and the shape of the covering portion 19 is matched with the shape of the first cavity 21 so as to cover the first cavity 21.

Fig. 7 is a perspective view of a thin pump according to another embodiment of the present invention. Fig. 8 is an exploded perspective view of the first housing and the partition of the low profile pump according to another embodiment of the present invention. FIG. 9 is a schematic partial cross-sectional view of a low profile pump according to another embodiment of the invention. Referring to fig. 7 to 9, in an embodiment, the first housing 10 further includes a sidewall 16, a sidewall 17, and a slot plate 18, the sidewall 16 is disposed opposite to the sidewall 17, and the slot plate 18 is disposed between the sidewall 16 and the sidewall 17 to form the flow channel 11. The

side walls

16 and 17 are disposed on the second surface 15, and the slot plate 18 is used to connect the

side walls

16 and 17, so that the slot plate 18 is protruded from the second surface 15, and a space of the flow channel 11 can be formed between the second surface 15 and the slot plate 18 (see fig. 9).

In one embodiment, the channel plate 18 connects the

side walls

16 and 17 by laser welding to form the flow channel 11. By using the flow channel 11, the fluid can smoothly enter the first chamber 21 through the inlet 25, the first channel 31 and the flow channel 11. Moreover, the flow channel 11 is disposed on the second surface 15 of the first housing 10, so that the flow path of the fluid can be effectively planned, and the effects of reducing the volume and thinning can be achieved without a complicated structural design. In addition, since the groove plate 18 is disposed on the second surface 15, the first surface 14 of the first casing 10 is a smooth surface without a welding structure, which can improve the appearance of the thin pump of the present invention.

In one embodiment, the second surface 15 further comprises a first shaft seat 151, the first shaft seat 151 is used for fixing one end of the central shaft 43, and as mentioned above, the other end of the central shaft 43 is fixed to the second shaft seat 213 of the second chamber 212.

In one embodiment, the first housing 10 and the separating member 20 may be made of metal, so that the first housing 10 and the separating member 20 can be combined by laser welding. By using the laser welding, the sealing and combining force between the first housing 10 and the separating member 20 can be improved, so that the fluid in the first chamber 21 will not leak out due to poor sealing. In an embodiment, the second casing 60 and the partition 20 may be made of metal, and the second casing 60 and the partition 20 may be welded together by laser to improve the tightness and the bonding force between the second casing 60 and the partition 20, so as to further protect the winding 421 and the circuit board 422. In one embodiment, the first housing 10, the second housing 60 and the partition 20 are made of metal, so as to facilitate the bonding by laser welding.

FIG. 10 is a schematic cross-sectional view of a thin pump according to another embodiment of the present invention. Referring to fig. 10, in an embodiment, the first housing 10 and the second housing 60 may be made of metal, and the first housing 10 and the second housing 60 are combined by laser welding and cover the partition 20, so that the first chamber 21 and the second chamber 22 in the partition 20 have a better sealing effect. In one embodiment, the two spacers 44 can be respectively tightly fitted and combined at two ends of the central shaft 43, and the two spacers 44 can be respectively tightly fitted and fixed on the first shaft seat 131 and the second shaft seat 213 of the cover plate 13 to fix the central shaft 43. In one embodiment, the rotor 41 further includes a shielding element 415, and the shielding element 415 covers the permanent magnet 414. The protection part 415 may be made of metal and forms a box for protecting the permanent magnet 414 and preventing moisture from entering and corroding the permanent magnet 414. In one embodiment, a space of the flow channel 11 is formed between the cover plate 13 and the flow channel 12, and the flow channel 11 is communicated with the first chamber 21, so that the fluid can flow smoothly through the flow path.

Therefore, the flow path 11 of the thin pump 1 of the present invention can be used to effectively plan the flow path of the fluid without complex structural design, so as to achieve the effects of reducing the volume and thinning.

The above embodiments are merely illustrative of the principles and effects of the present invention, and do not limit the present invention. Modifications and variations of the above-described embodiments may occur to those skilled in the art without departing from the spirit of the invention and are intended to be within the scope of the invention.

Claims

1. A low profile pump, comprising:

a first housing having a flow passage;

a partition having a first chamber and a second chamber, the first chamber communicating with the flow passage;

a motor having a rotor and a stator, the rotor being disposed in the first chamber and the stator being disposed in the second chamber;

the impeller is connected with the rotor and arranged in the first cavity; and

and the second shell is arranged on one side of the second chamber of the separator.

2. The thin pump as claimed in claim 1, wherein the partition further comprises an inlet disposed at the first end face, an outlet disposed at the second end face, a first end face and a second end face.

3. The thin pump as claimed in claim 2, wherein the partition further comprises a first channel, the first channel connects the inlet and the flow channel, and the width of the first channel gradually increases from the inlet to the flow channel.

4. The thin pump as claimed in claim 3, wherein the partition further comprises a second channel, the second channel communicating the outlet and the first chamber, the second channel having a width that tapers in a direction from the first chamber to the outlet.

5. The thin pump as claimed in claim 4, wherein the partition further comprises a block disposed in the second channel, the block having a tapered configuration.

6. The thin pump as claimed in claim 1, wherein the first housing further comprises a flow channel groove and a cover plate disposed on the flow channel groove to form the flow channel.

7. The thin pump as claimed in claim 6, wherein the first housing further comprises a first surface and a second surface, the first surface has a notch, the flow channel is disposed at a position opposite to the notch, and the cover plate is used to close the notch.

8. The thin pump as claimed in claim 7, wherein the cover plate is laser welded to the first housing to close the slot.

9. The thin pump of claim 7, wherein the cover further comprises a first shaft seat for securing a center shaft.

10. The thin pump as claimed in claim 1, wherein the first housing includes two opposite sidewalls and a groove plate disposed between the two sidewalls to form the flow passage.

11. The thin pump as claimed in claim 10, wherein the first housing further comprises a first surface and a second surface, the two sidewalls are disposed on the second surface, and the groove plate is used to connect the two sidewalls.

12. The thin pump of claim 11, wherein the groove plate is laser welded to the sidewalls.

13. The thin pump of claim 11, wherein the second face further comprises a first axle seat for securing a center axle.

14. The thin pump as claimed in claim 1, wherein the motor further comprises a central shaft and at least one spacer, the rotor has a bearing and a permanent magnet, the bearing is disposed at the center of the impeller, the central shaft is disposed in the bearing, the spacer is sleeved on the central shaft, and the permanent magnet is disposed at one side of the impeller.

15. The thin pump as claimed in claim 14, wherein the impeller covers the bearing when the impeller is injection molded.

16. The thin pump of claim 14, wherein the bearing is tightly fitted to the center of the impeller.

17. The thin pump of claim 14, wherein the first chamber comprises a first sump chamber configured to receive the impeller.

18. The thin pump of claim 14, wherein the first chamber further comprises a second chamber configured to receive the permanent magnet.

19. The thin pump of claim 18, wherein the second chamber further comprises a second shaft seat for securing the central shaft.

20. The thin pump as claimed in claim 14, wherein the motor includes two spacers tightly fitted to both ends of the central shaft.

21. The thin pump of claim 20, wherein the two gaskets are tightly fitted to a first shaft seat and a second shaft seat, respectively.

22. The thin pump as claimed in claim 14, wherein the rotor further comprises a shield member covering the permanent magnet.

23. The thin pump as claimed in claim 1, wherein the stator has a winding and a circuit board, the winding being electrically connected to the circuit board.

24. The thin pump of claim 23, wherein the second chamber comprises a third chamber, the third chamber being annular to receive the winding.

25. The thin pump of claim 23, wherein the second chamber further comprises a fourth well configured to receive the circuit board.

26. The thin pump as claimed in claim 1, wherein the partition further comprises a first sealing member disposed at a periphery of the first chamber.

27. The thin pump as claimed in claim 1, wherein the partition further comprises a first side and a second side, the first chamber being disposed on the first side and the second chamber being disposed on the second side.

28. The thin pump of claim 27, wherein the divider further comprises a second seal disposed about a periphery of the first side.

29. The thin pump of claim 27, wherein the divider further comprises a third seal disposed about a periphery of the second side.

30. The thin pump as claimed in claim 1, wherein the first housing further comprises a cover portion for covering the first chamber.

31. The thin pump as claimed in claim 1, wherein the first housing and the separator are made of metal, and the first housing and the separator are joined by laser welding.

32. The thin pump as claimed in claim 1, wherein the second housing and the partition are made of metal, and the second housing and the partition are joined by laser welding.

33. The thin pump as claimed in claim 1, wherein the first and second housings are made of metal, and the first and second housings are joined by laser welding.