Thin profile pumping

Abstract

The present application provides a thin pump to solve the problem that the existing pump cannot consider thin and fluid supply amount efficiency. Including: a frame seat, the inside is separated into a first chamber and a second chamber by a partition, a flow inlet communicates with the first chamber, a flow outlet communicates with the second chamber, the partition has a communication port, the first chamber and the second chamber are communicated by the communication port; a shaft connecting part located in the frame seat; a stator, which is arranged around the outer periphery of the shaft connecting part and located in the axial range of the first chamber, the stator is axially opposite to the communication port; and an impeller, which has a plurality of blades located in the second chamber and an inlet, the inlet faces the communication port and is axially opposite to the communication port.

Description

[0001] The present application is a divisional application of the invention patent application No. 202010288834.2, Thin Type Pump, the parent application of which has a filing date of April 14, 2020. TECHNICAL FIELD

[0002] The present application relates to a pump, in particular, a thin type pump capable of driving a working fluid to flow. BACKGROUND

[0003] In the early stage, most of the pumps are designed to input working fluid from the axial port, and then guide the working fluid to flow out from the lateral port. However, this flow guiding manner will cause the pump to be difficult to reduce the axial height. Therefore, in recent years, some manufacturers have developed thin type pumps capable of sucking and discharging working fluid from the lateral port. For example, please refer to Figure 1 The thin type pump 9 is a prior art thin type pump having a housing 91, a rotor set 92, and a stator set 93. The housing 91 has a housing base 911, and a housing cover 912 is combined with the top end of the housing base 911, and a flow guiding space 913 is formed between the inside of the housing base 911 and the housing cover 912. The housing 91 further has an input port 914 and an output port communicating with the flow guiding space 913 from the lateral direction, and the input port 914 and the output port are approximately aligned at the upper half of the flow guiding space 913. The lower half of the flow guiding space 913 has a shaft connecting portion 915. The rotor set 92 is located in the flow guiding space 913, and the rotor set 92 has a hub 921 rotatably provided at the shaft connecting portion 915, a plurality of blades 922 combined with the hub 921 and located at the upper half of the flow guiding space 913, and a magnet ring 923 combined with the hub 921 and located at the lower half of the flow guiding space 913. The stator set 93 is combined with the lower half of the housing base 911 and located outside the flow guiding space 913, and the stator set 93 is radially opposite to the magnet ring 923 through the housing base 911. An embodiment similar to the prior art thin type pump 9 has been disclosed in the Taiwan Patent No. TWM305266U.

[0004] However, when the above-mentioned prior art thin type pump 9 operates, the stator set 93 can drive the hub 921 to rotate, so that the working fluid can flow into the flow guiding space 913 through the input port 914, and then be guided to flow out from the output port. However, since the input port 914 and the output port are both aligned at the upper half of the flow guiding space 913, a part of the working fluid guided into the upper half of the flow guiding space 913 will flow downward into the lower half of the flow guiding space 913, and then cause turbulence to the inflow and outflow, affecting the smoothness of the working fluid flowing out from the output port. Therefore, although the prior art thin type pump 9 can reduce the axial height, it also causes the problem of reducing the fluid supply efficiency of the pump.

[0005] Therefore, the existing thin pump still needs to be improved. SUMMARY

[0006] To solve the above problems, the present application aims to provide a thin pump which can make full use of the space inside the frame to guide the flow and provide a smooth flow path to reduce the mutual interference of the inflow and outflow, thereby balancing the thinness and the fluid supply efficiency of the pump.

[0007] A further object of the present application is to provide a thin pump which can further reduce the overall axial height of the pump and increase the fluid supply amount by using a simple structure.

[0008] Another object of the present application is to provide a thin pump in which the working fluid can be introduced and discharged from the side of the frame, and the impeller can perform a flow guiding mode of axial and lateral movement in the frame.

[0009] Still another object of the present application is to provide a thin pump in which the impeller can pressurize the working fluid as it flows between the blades.

[0010] The directional or approximate terms described throughout the present application, such as "front", "back", "left", "right", "up (top)", "down (bottom)", "inner", "outer", "side", etc., mainly refer to the directions of the drawings, and each directional or approximate term is only used to assist in describing and understanding each embodiment of the present application, and is not intended to limit the present application.

[0011] The quantifier "one" or "a" used throughout the present application is only for convenience and provides a general meaning of the scope of the present application; in the present application, it should be interpreted as including one or at least one, and the single concept also includes multiple cases, unless it is clear that it means otherwise.

[0012] The approximate terms such as "combine", "combine" or "assemble" described throughout the present application mainly include the type of being able to separate without destroying the components after being connected, or being unable to separate the components after being connected, which can be selected by the person skilled in the art according to the material of the components to be connected or the assembly requirements.

[0013] The thin pump of the present application comprises: a frame, the inside of which is divided into a first chamber and a second chamber by a partition, an inflow port communicating with the first chamber, an outflow port communicating with the second chamber, the partition having a communication port, the first chamber and the second chamber being communicated by the communication port; a shaft connecting portion located in the frame; a stator arranged around the outer periphery of the shaft connecting portion and located in the axial range of the first chamber, the stator being axially opposite to the communication port; and an impeller having a plurality of blades located in the second chamber and an inflow port, the inflow port facing the communication port and being axially opposite to the communication port.

[0014] Therefore, the thin pump of the present application can make full use of the residual space in the first chamber to guide the flow of the working fluid introduced from outside, and when the working fluid flows into the second chamber, it can be introduced between the blades through the inflow port and smoothly discharged through the guidance of the impeller. Therefore, the thin pump of the present application can make full use of the space in the frame to guide the flow of the working fluid, ensure smooth guidance of the working fluid, reduce the interference between the inflow and outflow, and still achieve the expected flow and lift under the condition of limited volume.

[0015] The impeller has a rotating shaft rotatably arranged in the shaft connecting portion, the rotating shaft is connected to a hub, a top disc can connect the top edges of the blades and the hub, and a ring member can connect the bottom edges of the blades, and the inner edge of the ring member and the hub can form the inflow port. In this way, the top ends of the blades can be closed by the top disc, and the ring member can provide a pressurizing effect on the working fluid, thereby improving the flow guiding efficiency.

[0016] The thin pump can further include a booster connected to the impeller for synchronous rotation, the booster can have a plurality of secondary flow guides arranged around the outer periphery of the shaft connecting portion, any two adjacent secondary flow guides can form a flow channel, and the plurality of secondary flow guides can be located within the radial range of the communication port. In this way, the plurality of secondary flow guides can increase the pressure of the working fluid flowing into the impeller, thereby improving the flow smoothness and efficiency.

[0017] The booster can have a disc seat connected to the inner edges of the plurality of secondary flow guides and the hub. In this way, by combining the disc seat with the hub, the relative positions of the plurality of secondary flow guides and other components can be accurately positioned, thereby improving the assembly convenience and efficiency.

[0018] The disc seat can have a connecting portion and a sleeve ring connected thereto, the connecting portion can be connected to the hub, the sleeve ring can be located around the outer periphery of the shaft connecting portion, the inner edges of the plurality of secondary flow guides can be connected to the sleeve ring, and the inflow port can be located between the plurality of blades and the plurality of secondary flow guides. In this way, the structure of the disc seat can be simplified, thereby reducing the manufacturing cost and improving the assembly convenience.

[0019] The plurality of secondary flow guides can extend radially beyond the hub, and the outer edges of the plurality of secondary flow guides can be axially opposite to the inflow port. In this way, the plurality of secondary flow guides can rotate smoothly without interfering with other components, and the plurality of secondary flow guides can provide better pressurizing effect on the working fluid, thereby improving the flow smoothness and efficiency.

[0020] The number of the sub-flow guides can be more than the number of the blades. In this way, the pressure of the working fluid flowing upward into the second chamber can be enhanced by the sub-flow guides, and the number of the blades can be reduced to improve the smoothness of the working fluid, thereby improving the smoothness and efficiency of the flow guide.

[0021] The top of the sub-flow guides can be connected to the center disc of the hub, and the bottom of the sub-flow guides can extend into the first chamber. In this way, the booster can make the working fluid flow into the impeller in the form of centrifugal flow, thereby further improving the pressure effect on the working fluid.

[0022] The booster can have an extension seat connected to the outer edge of the sub-flow guides, and a magnetic member can be connected to the extension seat and axially or radially opposite to the stator. In this way, the magnetic member can be arranged closer to the stator, thereby improving the efficiency of driving the impeller to rotate and being applicable to different types of stators.

[0023] The stator is located in the first chamber, and the impeller can be used to drive the flow of non-conductive liquid. In this way, the impeller and the stator can be arranged in the frame seat without isolation, and there is no problem of short circuit during operation, thereby improving the efficiency of the stator driving the impeller to rotate and reducing the overall pump volume.

[0024] The stator can have a magnetic pole to form an opening for the working fluid to flow. In this way, the resistance of the working fluid at the opening can be greatly reduced, thereby flowing more smoothly to the second chamber, thereby improving the smoothness and efficiency of the flow guide.

[0025] The opening can be directed to the injection port of the frame seat. In this way, the working fluid can flow upward through the opening as soon as it enters the first chamber, thereby reducing the energy loss caused by the working fluid impacting the stator, thereby improving the smoothness and efficiency of the flow guide. The frame seat has a body, the partition plate can be arranged in the body, a bottom plate and a cover plate can be connected to the body respectively to form the first chamber between the partition plate and the bottom plate, and the second chamber between the cover plate and the partition plate. In this way, the structure of the frame seat is simple, easy to manufacture and assemble, and easy to thin.

[0026] The bottom plate can have an inner protrusion in the axial range of the first chamber, and the stator can be accommodated in the inner protrusion outside the frame seat. In this way, the stator will not be in contact with the working fluid in the frame seat, so that any conductive working fluid can be used, thereby reducing the cost of the working fluid.

[0027] The inner protrusion can be a C-shaped ring to form a gap in the first chamber for the working fluid to flow. The stator can have a missing magnetic pole, and the missing magnetic pole of the stator can be aligned with the gap. In this way, the resistance of the working fluid at the gap can be greatly reduced, so that it flows more smoothly to the second chamber, thereby improving the flow smoothness and efficiency.

[0028] The gap can be directed to the injection port of the frame. In this way, the working fluid can flow upward through the gap as soon as it enters the first chamber, reducing the energy loss caused by the working fluid impacting the inner protrusion, thereby improving the flow smoothness and efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0029] The application will be further described below in conjunction with the drawings and specific embodiments.

[0030] Figure 1 A side view of a conventional thin pump;

[0031] Figure 2 An exploded perspective view of the first embodiment of the application;

[0032] Figure 3 A top view of the first embodiment of the application;

[0033] Figure 4 A cross-sectional view along the A-A line of Figure 3

[0034] Figure 5 An exploded perspective view of the second embodiment of the application;

[0035] Figure 6 A side view of the second embodiment of the application;

[0036] Figure 7 A side view of the third embodiment of the application;

[0037] Figure 8 An exploded perspective view of the fourth embodiment of the application;

[0038] Figure 9 A side view of the fourth embodiment of the application;

[0039] Figure 10 An exploded perspective view of the fifth embodiment of the application;

[0040] Figure 11 A side view of the fifth embodiment of the application;

[0041] Figure 12 An exploded perspective view of the sixth embodiment of the application;

[0042] Figure 13 ​Top view of the sixth embodiment of the present invention;

[0043] Figure 14 :along Figure 13 BB line cross-section;

[0044] Figure 15 Side sectional view of other embodiments of the present invention;

[0045] Figure 16 : An exploded perspective view of the seventh embodiment of the present invention;

[0046] Figure 17 Top view of the seventh embodiment of the present invention;

[0047] Figure 18 :along Figure 17 CC line cross-section;

[0048] Figure 19 : Exploded perspective view of other embodiments of the present invention.

[0049] Explanation of reference numerals in the attached figures

[0050] [This Invention]

[0051] 1: Frame base

[0052] 1a:Ontology

[0053] 1b: Base plate

[0054] 1c: Cover plate

[0055] 11: Partition

[0056] 111: Connector

[0057] 12: Injection port

[0058] 13: Drain outlet

[0059] 14: Inner convex part

[0060] 15: Anti-backflow component

[0061] 2: Shaft joint

[0062] 21: Shaft tube

[0063] 22: Bearing

[0064] 3: Stator

[0065] 4: Impeller

[0066] 41: Shaft

[0067] 42: Wheel hub

[0068] 421: Central plate

[0069] 422: axial extension

[0070] 423: radial extension

[0071] 43: blade

[0072] 44: inlet

[0073] 45: top disc

[0074] 46: ring

[0075] 47: magnetic member

[0076] 5: supercharger

[0077] 51: secondary flow guide

[0078] 511: inner edge

[0079] 512: outer edge

[0080] 513: top

[0081] 514: bottom

[0082] 52: disc seat

[0083] 521: joint

[0084] 522: collar

[0085] 53: extension seat

[0086] 54: magnetic member

[0087] E1: blade top edge

[0088] E2: blade bottom edge

[0089] E3: blade outer edge

[0090] E4: disc outer edge

[0091] E5: ring inner edge

[0092] E6: ring outer edge

[0093] F: flow channel

[0094] L: radial side

[0095] N: notch

[0096] P: magnetic pole

[0097] Q: ring circumference

[0098] S1: first chamber

[0099] S2: second chamber

[0100] [Common Use]

[0101] 9: Thin-type pump

[0102] 91: Shell

[0103] 911: Shell

[0104] 912: Shell Cap

[0105] 913: Flow Guiding Space

[0106] 914: Input Port

[0107] 915: Shaft Joint

[0108] 92: Rotor assembly

[0109] 921: Wheel hub

[0110] 922: Blade

[0111] 923: Magnetic Ring

[0112] 93: Stator group. Detailed Implementation

[0113] To make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments of the present invention are described below in detail with reference to the accompanying drawings:

[0114] Please refer to Figure 2 As shown, it is the first embodiment of the thin pump of the present invention, including a frame 1, and a shaft connection 2, a stator 3 and an impeller 4 located in the frame 1.

[0115] Please refer to Figure 2 , Figure 4As shown, the frame 1 can be divided internally into a first chamber S1 and a second chamber S2 that are axially adjacent by a partition 11. An inlet 12 connects to the first chamber S1, and an outlet 13 connects to the second chamber S2. The first chamber S1 and the second chamber S2 can be axially adjacent, and the inlet 12 and the outlet 13 can be located on the radial side L of the frame 1. The partition 11 can have a connecting port 111, so that the first chamber S1 and the second chamber S2 can be connected by the connecting port 111. The present invention does not limit the type of the frame 1; in this embodiment, the frame 1 can include a body 1a, a base plate 1b, and a cover plate 1c. The body 1a can be, for example but not limited to, a rectangular body, and has a circular groove recessed from its upper and lower surfaces, and the partition 11 is formed between the two circular grooves. The sidewall of the body 1a may form two conduits, with the inlet 12 and outlet 13 respectively formed in the two conduits. When the bottom plate 1b and the cover plate 1c are respectively attached to the upper and lower surfaces of the body 1a, the first chamber S1 is formed by the circular groove located between the bottom plate 1b and the partition 11, and the second chamber S2 is formed by the circular groove located between the cover plate 1c and the partition 11.

[0116] The shaft connection 2 is located within the frame 1. The shaft connection 2 generally includes a shaft tube 21 and at least one bearing 22. The shaft tube 21 is connected to the frame 1 and can extend from the first chamber S1 towards the second chamber S2. The bearing 22 is located within the shaft tube 21 for rotatably mounting the impeller 4. The connection method between the shaft connection 2 and the frame 1, as well as the internal components of the shaft connection 2, can be modified according to usage requirements, as will be understood by those skilled in the art, and therefore is not limited to the configuration disclosed in the drawings of this embodiment. In this embodiment, the shaft tube 21 can be connected to the base plate 1b and extend towards the second chamber S2 through the communication opening 111, providing sufficient depth to support the impeller 4 in conjunction with the bearing 22, allowing the impeller 4 to maintain stable rotation relative to the frame 1.

[0117] The stator 3 is arranged around the outer periphery of the shaft connection portion 2 and is located within the axial range of the first chamber S1. Therefore, the stator 3, in principle, does not protrude outward relative to the frame 1, nor does it extend into the second chamber S2, in order to avoid increasing the overall axial height of the thin pump or affecting the working fluid in the second chamber S2. Specifically, when the working fluid driven by the thin pump is gas or non-conductive liquid, the stator 3 can be disposed within the first chamber S1 as shown in the attached drawings of this embodiment, without the need for additional waterproof material covering; or, for example, in Figure 7In other embodiments shown, the base plate 1b may also have an inner protrusion 14, which may be a continuous groove or multiple spaced grooves protruding toward the partition 11, and the inner protrusion 14 is located within the axial range of the first chamber S1, so that the stator 3 can be assembled into the inner protrusion 14 from the outside of the frame 1, so that the stator 3 does not come into contact with the working fluid in the frame 1, and thus the conductivity of the working fluid is not limited.

[0118] Please refer to Figure 3 , Figure 4 As shown, the stator 3 can be axially opposite to the communication port 111, allowing the working fluid in the first chamber S1 to pass through the gap in the stator 3 and flow into the second chamber S2. Furthermore, the present invention does not limit the type of the stator 3. In this embodiment, the stator 3 can be formed by stacking silicon steel sheets to create a ring-shaped arrangement of multiple pole posts for radial winding of coils. The stator 3 can be axially opposite to the communication port 111 from a portion closer to its inner edge.

[0119] Please refer to again Figure 2 , Figure 4 As shown, the impeller 4 has a rotating shaft 41. One end of the rotating shaft 41 can be inserted into the shaft tube 21 of the shaft connection 2 and is rotatably mounted on the bearing 22 of the shaft connection 2. The other end of the rotating shaft 41 protrudes from the shaft tube 21 and can be connected to a hub 42. The impeller 4 also has a plurality of blades 43 located in the second chamber S2 and an inlet 44. The plurality of blades 43 are arranged around the outer periphery of the rotating shaft 41. The inlet 44 is located between the plurality of blades 43 and the communication port 111, and the inlet 44 can face the communication port 111 and be axially opposite to the communication port 111, so that most of the working fluid flowing from the first chamber S1 into the second chamber S2 can flow directly through the inlet 44 into the space between the plurality of blades 43, and be guided out of the second chamber S2 by the plurality of blades 43. Each leaf 43 has a corresponding top edge E1 and bottom edge E2, and an outer edge E3 connects the top edge E1 and the bottom edge E2.

[0120] In this embodiment, the impeller 4 may also have a top plate 45 and a ring member 46. The top plate 45 has an outer edge E4, and the ring member 46 has an inner edge E5 and an outer edge E6. The top plate 45 connects the tip edges E1 of the plurality of blades 43 to the hub 42, and the ring member 46 connects to the bottom edges E2 of the plurality of blades 43, so that the top plate 45 closes the tips of the plurality of blades 43, and the inlet 44 is formed between the inner edge E5 of the ring member 46 and the hub 42, so that the working fluid can be pressurized by the ring member 46 and flow axially into the inlet 44, and flow out laterally from the outer edges E3 of the plurality of blades 43, so as to smoothly guide the outlet 13 of the frame 1. For example, but not limited to, the plurality of blades 43, the top plate 45 and the ring member 46 can be integrally formed and connected to facilitate manufacturing, assembly and prevent the plurality of blades 43 from deforming during operation. The connecting port 111 is axially aligned with the radial range of the inner edge E5 of the ring member 46, ensuring that the ring member 46 does not affect the smooth flow of the working fluid through the inlet 44. The outer edge E4 of the top plate 45 and the outer edge E6 of the ring member 46 are flush with the outer edges E3 of the multiple blades 43 to stabilize the structure of the impeller 4. The impeller 4 also has a magnetic member 47, which can be connected to the hub 42 and arranged around the outer periphery of the shaft connection 2. In this embodiment, the magnetic member 47 can be located between the shaft connection 2 and the stator 3, and the magnetic member 47 can be radially opposite to the stator 3 so that the magnetic field generated by the stator 3 after being energized repels the magnetic member 47, thereby driving the hub 42 to drive the multiple blades 43 to rotate synchronously.

[0121] Please refer to Figure 4 As shown, according to the aforementioned structure, when the thin pump of this embodiment operates, the working fluid in the second chamber S2 can be discharged through the drain port 13 of the frame 1 by the rotation of the impeller 4, so that the second chamber S2 forms a negative pressure, so that the external working fluid can be introduced into the first chamber S1 through the injection port 12 of the frame 1. The configuration relationship between the partition 11 and the impeller 4 allows the externally introduced working fluid to make full use of the remaining space in the first chamber S1 for guidance. Through the gap between the stator 3 and the partition 11, the gap of the magnetic pole P of the stator 3, the air gap between the stator 3 and the magnetic component 47, etc., it flows into the second chamber S2 from the communication port 111, and is then guided through the inlet 44 to the space between the multiple blades 43, and is smoothly discharged from the second chamber S2 by the multiple blades 43. Thus, although the thin pump in this embodiment introduces and discharges working fluid from the radial side L of the frame 1, the impeller 4 operates in the frame 1 in a shaft-in, side-out flow-guiding mode. The partition 11 ensures that the inflowing and outflowing working fluids do not interfere with each other and makes full use of the space in the frame 1 for flow guidance. This allows the thin pump to achieve the expected flow rate and head even with limited volume.

[0122] Please refer to Figure 5 , Figure 6 As shown, this is a second embodiment of the thin-film pump of the present invention. In this embodiment, the frame 1 may also have an anti-backflow member 15. The anti-backflow member 15 may be arranged around the outer periphery of the connecting port 111, without obstructing the connecting port 111. The anti-backflow member 15 may be located between the partition plate 11 and the ring member 46, making the distance between the anti-backflow member 15 and the ring member 46 small, but the ring member 46 will not contact the anti-backflow member 15 when rotating. Thus, the working fluid flowing from the first chamber S1 into the second chamber S2 will be less likely to flow through the narrow gap between the anti-backflow member 15 and the ring member 46 to the outer periphery of the impeller 4, allowing most of the working fluid to flow through the inlet 44 into the space between the multiple blades 43. For example, but not limited to, the anti-backflow member 15 may be a ring plate, combined with or integrally formed and connected to the surface of the partition plate 11 facing the ring member 46. In this embodiment, the stator 3 can be, for example, a coil wound on a spool. Since the radial thickness of the stator 3 is relatively thin, the entire stator 3 can be axially aligned within the radial range of the communication port 111, or even almost axially aligned within the radial range of the hub 42. This allows a larger amount of working fluid to flow upward through the communication port 111 and the inlet port 44 before passing through the magnetic pole P gap of the stator 3, and then into the space between the multiple blades 43, which helps to improve the smoothness of the working fluid flow.

[0123] Please refer to Figure 7 As shown, this is the third embodiment of the thin pump of the present invention. In this embodiment, the frame 1 has the aforementioned inner protrusion 14 for accommodating the stator 3, so that the stator 3 does not contact the working fluid. Therefore, this embodiment is not limited by the conductivity of the working fluid. In addition, in this embodiment, the anti-backflow member 15 can be adjacent to the circumferential edge Q of the communication port 111. That is, the anti-backflow member 15 can be a flange formed by extending upward from the circumferential edge Q of the communication port 111. The anti-backflow member 15 can also provide a guiding function, so that after the working fluid passes through the communication port 111, it can still flow towards the inlet 44 of the impeller 4 along the guide of the anti-backflow member 15, and is less likely to flow to the outer periphery of the impeller 4.

[0124] Please refer to Figure 8 , Figure 9 As shown, this is the fourth embodiment of the thin-film pump of the present invention. In this embodiment, an inductive stator 3 with coils of each magnetic pole P wound radially is used, and a channel for the flow of working fluid is formed between any two adjacent magnetic poles P. The working fluid can be a gas or a non-conductive liquid. In other embodiments, the stator 3 can be coated with waterproof adhesive so that even if the stator 3 is located in the first chamber S1, it will not be short-circuited by the working fluid. Therefore, it is not necessary to limit the conductivity of the working fluid, and it can be applied to gases, conductive or non-conductive liquids.

[0125] Please refer to Figure 10 , Figure 11 As shown, this is the fifth embodiment of the thin-film pump of the present invention. In this embodiment, the frame 1 has the aforementioned inner protrusion 14, and there is a radial air gap between the stator 3 and the magnetic component 47 of the impeller 4. To improve the smoothness and flow rate of the working fluid, the inner protrusion 14 can be made into a C-shaped ring to form a notch N in the first chamber S1, and the notch N forms a channel for the working fluid to flow. The stator 3 can be provided with one less magnetic pole P to accommodate the inner protrusion 14, and the part of the stator 3 lacking magnetic pole P is aligned with the notch N. In this way, the resistance of the working fluid at the notch N can be greatly reduced, thereby flowing more smoothly to the second chamber S2. Preferably, the notch N faces the inlet 12 of the frame 1, so that the working fluid can flow upward through the notch N as soon as it enters the first chamber S1, reducing the energy loss caused by the working fluid impacting the inner protrusion 14. On the other hand, in embodiments that do not have the inner protrusion 14, the stator 3 can be directly provided with one less magnetic pole P to form the aforementioned gap N.

[0126] Please refer to Figures 12-14 As shown, this is the sixth embodiment of the thin pump of the present invention. This embodiment of the thin pump may further include a booster 5, which is connected to the impeller 4 for synchronous rotation. The booster 5 may have multiple auxiliary guide members 51, which are arranged around the outer periphery of the shaft connection portion 2, forming a flow channel F between any two adjacent auxiliary guide members 51. When the booster 5 rotates with the impeller 4, it can assist in guiding the working fluid from the first chamber S1 into the second chamber S2 through the multiple auxiliary guide members 51, and increase the working fluid pressure when it flows into the impeller 4. The number of auxiliary guide members 51 may be greater than the number of blades 43, so that the multiple auxiliary guide members 51 enhance the pressure guiding the working fluid upward into the second chamber S2, while the fewer blades 43 improve the smoothness of the working fluid discharge.

[0127] More specifically, the hub 42 of this embodiment may have a central disc 421, the outer periphery of which may be connected to a radial extension 423 by an axial extension 422. Each auxiliary guide member 51 has a radially opposite inner edge 511 and an outer edge 512. The turbocharger 5 may be connected to the inner edges 511 of the multiple auxiliary guide members 51 by a disc holder 52, and the disc holder 52 may be connected to the hub 42. In this embodiment, the disc base 52 may have a connecting part 521 and a sleeve 522 connected together. The connecting part 521 may connect the center disc 421 and the axial extension part 422 of the hub 42. The sleeve 522 is arranged around the outer periphery of the shaft tube 21 of the shaft connection part 2 and is connected to the inner edge 511 of a plurality of auxiliary flow guides 51, so that the plurality of auxiliary flow guides 51 can be located below the plurality of blades 43, and the inlet 44 can be located between the plurality of blades 43 and the plurality of auxiliary flow guides 51. The plurality of auxiliary flow guides 51 may be located approximately above the first chamber S1, and the plurality of auxiliary flow guides 51 may be located within the radial range of the connecting port 111, so that the flow guiding effect is better.

[0128] Multiple auxiliary guide members 51 can extend radially beyond the disc base 52 and the hub 42, so that the outer edges 512 of the multiple auxiliary guide members 51 can be axially opposite to the inlet 44. The turbocharger 5 may also have an extension seat 53 connecting the outer edges 512 of the multiple auxiliary guide members 51, and a magnetic member 54 can be connected to the extension seat 53 and axially or radially opposite to the stator 3. In this embodiment, the stator 3 can be located between the shaft connection 2 and the magnetic member 54, and the magnetic member 54 can be radially opposite to the stator 3. In this embodiment, the stator 3 may also have one less magnetic pole P to form the aforementioned notch N, and when the stator 3 is to be used with a working fluid with high conductivity, the stator 3 can also be wrapped with waterproof adhesive to prevent the stator 3 from short-circuiting due to the working fluid.

[0129] Please refer to Figure 14 As shown, according to the aforementioned structure, the working fluid flowing into the first chamber S1 from the outside can enter the second chamber S2 through the gap between the extension seat 53 and the partition plate 11, the notch N of the stator 3, the magnetic pole P gap of the stator 3, the air gap between the stator 3 and the magnetic component 54, and the flow channel F between the multiple auxiliary guide components 51, etc., and then flow into the second chamber S2 through the inlet 44 and between the multiple blades 43, and then be guided out of the second chamber S2 by the multiple blades 43. Among them, when the working fluid passes through the flow channel F between the multiple auxiliary guide components 51, it can generally present an axial flow guiding pattern of axial inflow and axial outflow.

[0130] Furthermore, the stator 3 in this embodiment may, for example but not limited to, be a plurality of pole posts arranged in a ring by stacking silicon steel sheets, for radial winding of the coil. In other embodiments, for example... Figure 15As shown, the stator 3 can be made of stamped upper and lower magnetic sheets, paired with a coil wound axially around the shaft tube 21, or it can be other forms of stator 3. The stator 3 and the magnetic component 54 can be arranged axially or radially opposite each other as required, and the present invention does not limit either of them. Furthermore, the notch N can be set as required, and the present invention does not limit it either.

[0131] Please refer to Figures 16-18 As shown, this is the seventh embodiment of the thin pump of the present invention. This embodiment discloses a stator 3 of printed coil type, and the appearance of the booster 5 in this embodiment is slightly different from that in the aforementioned sixth embodiment.

[0132] More specifically, each of the sub-guide members 51 in this embodiment has a radially opposite inner edge 511 and an outer edge 512, and an axially opposite top 513 and a bottom 514. The disc base 52 connects the inner edges 511 of the multiple sub-guide members 51, and the disc base 52 can connect to the center disc 421 of the hub 42, through which the rotating shaft 41 passes. The tops 513 of the multiple sub-guide members 51 can connect to the center disc 421 and the axial extension 422 of the hub 42, and the bottoms 514 of the multiple sub-guide members 51 can protrude beyond the bottom edge of the radial extension 423 of the hub 42 and extend into the first chamber S1, so that the multiple sub-guide members 51 can all be located within the radial range of the communication port 111. The extension seat 53 connects to the outer edge 512 of a plurality of auxiliary guide members 51 adjacent to the bottom 514. The extension seat 53 can be located within the first chamber S1 and is used to connect the magnetic member 54, allowing the magnetic member 54 to be axially aligned with the stator 3. In other embodiments, the stator 3 can also be as follows: Figure 19 The diagram shows a coreless winding, positioned axially opposite to the magnetic component 54. Alternatively, it can be configured as described above. Figure 14 , Figure 15 The stator 3 shown is modified in this embodiment by changing the shape of the extension seat 53 so that the stator 3 can be arranged radially opposite to the magnetic element 54.

[0133] Please refer to Figure 18 As shown, according to the aforementioned structure, the working fluid flowing into the first chamber S1 from the outside can enter the second chamber S2 through the gap between the extension seat 53 and the partition 11, the air gap between the stator 3 and the magnetic component 54, and the flow channel F between the multiple auxiliary guide components 51, etc., and then flow into the space between the multiple blades 43 through the inlet 44, and is then guided out of the second chamber S2 by the multiple blades 43. When the working fluid passes through the flow channel F between the multiple auxiliary guide components 51, it can generally exhibit a centrifugal flow pattern of axial inflow and lateral outflow.

[0134] In summary, the thin-film pump of the present invention, through the configuration of the baffle and the impeller, allows the working fluid introduced from the outside to fully utilize the remaining space in the first chamber for flow guidance. Upon flowing into the second chamber, the fluid is smoothly guided through the inlet and directed between the multiple blades, then discharged smoothly by the impeller. Therefore, the thin-film pump of the present invention can fully utilize the space within the frame for flow guidance and ensure smooth flow guidance of the working fluid, reducing interference between the inlet and outlet flows. This allows the thin-film pump to achieve the expected flow rate and head even with limited volume.

[0135] It is worth mentioning that the stator configurations disclosed in the foregoing embodiments of the present invention are not limited to the components such as the frame or impeller corresponding to the drawings; in other words, the components in each embodiment can be modified and combined according to usage requirements, which is understandable to those skilled in the art, and therefore are not limited to the configurations disclosed in the drawings.

[0136] Although the present invention has been disclosed using the above preferred embodiments, it is not intended to limit the present invention. Any modifications and alterations made by those skilled in the art to the above embodiments without departing from the spirit and scope of the present invention shall still fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope of protection of the claims.

Claims

1. A thin pump, characterized in that, include: A frame is divided into a first chamber and a second chamber by a partition, an inlet is connected to the first chamber and an outlet is connected to the second chamber, the partition has a connecting port, and the first chamber and the second chamber are connected by the connecting port; A shaft connection is located within the frame. A stator is arranged around the outer periphery of the shaft connection and located within the axial range of the first chamber, the stator being axially opposite to the communication port; An impeller has multiple blades located in the second chamber and an inlet facing the communication port and axially opposite to the communication port. The communication port is located between the stator and the impeller, such that the impeller, the communication port, and the stator are arranged sequentially in one axial direction. The impeller has a shaft rotatably disposed at the shaft joint, the shaft being connected to a hub. A top plate is connected to the tip edges of the multiple blades and the hub. A ring is connected to the base edges of the multiple blades. The inlet is formed between the inner edge of the ring and the hub. and A booster connected to the impeller for synchronous rotation, the booster having multiple secondary guide elements arranged around the outer periphery of the shaft joint, a flow channel being formed between any two adjacent secondary guide elements, and the multiple secondary guide elements being located within the radial range of the communication port.

2. The thin pump as described in claim 1, characterized in that, The turbocharger has a disc mount that connects the inner edge of a plurality of secondary guide vanes to the hub.

3. The thin pump as described in claim 2, characterized in that, The disc base has a connecting part and a collar connected to each other. The connecting part is connected to the hub, and the collar is located on the outer periphery of the shaft connection part. The inner edges of multiple auxiliary guides are connected to the collar, and the inlet is located between multiple blades and multiple auxiliary guides.

4. The thin pump as described in claim 3, characterized in that, Multiple secondary guide elements extend radially beyond the hub, and the outer edges of the multiple secondary guide elements are axially opposite to the inlet.

5. The thin pump as described in claim 1, characterized in that, The number of the auxiliary guide components is greater than the number of the blades.

6. The thin pump as claimed in claim 1, characterized in that, The shaft is connected to a central disc of the hub, the tops of multiple auxiliary guides are connected to the central disc of the hub, and the bottoms of the multiple auxiliary guides extend into the first chamber.

7. The thin pump as claimed in any one of claims 1 to 6, characterized in that, The turbocharger has an extension seat connecting the outer edge of multiple auxiliary guides, and a magnetic element connecting the extension seat and being axially or radially opposite to the stator.

8. A thin pump, characterized in that, include: A frame is divided into a first chamber and a second chamber by a partition, an inlet is connected to the first chamber and an outlet is connected to the second chamber, the partition has a connecting port, and the first chamber and the second chamber are connected by the connecting port; A shaft connection is located within the frame. A stator is arranged around the outer periphery of the shaft connection and located within the axial range of the first chamber, the stator being axially opposite to the communication port; and An impeller has a plurality of blades located in the second chamber and an inlet facing the communication port and axially opposite to the communication port. The communication port is located between the stator and the impeller, such that the impeller, the communication port, and the stator are arranged sequentially in one axial direction. The stator is located in the first chamber, and the impeller is used to drive the flow of non-conductive liquid; the stator has one less magnetic pole to form a gap for the flow of working fluid.

9. The thin pump as described in claim 8, characterized in that, The notch faces the injection port of the frame.

10. A thin pump, characterized in that, include: A frame base is divided into a first chamber and a second chamber by a partition. An inlet is connected to the first chamber and an outlet is connected to the second chamber. The partition has a connecting port through which the first chamber and the second chamber are connected. The frame base has a body, the partition is disposed on the body, a bottom plate and a cover plate are respectively connected to the body, so that the first chamber is formed between the partition and the bottom plate, and the second chamber is formed between the cover plate and the partition. A shaft connection is located within the frame. A stator is arranged around the outer periphery of the shaft connection and located within the axial range of the first chamber, the stator being axially opposite to the communication port; and An impeller has a plurality of blades located in the second chamber and an inlet facing the communication port and axially opposite to the communication port. The communication port is located between the stator and the impeller, such that the impeller, the communication port, and the stator are arranged sequentially in one axial direction. The base plate has an inner protrusion located within the axial range of the first chamber, and the stator is housed in the inner protrusion and located outside the frame. The inner protrusion is C-shaped and forms a gap in the first chamber for the flow of working fluid. The stator is provided with one less magnetic pole, and the part of the stator lacking the magnetic pole is aligned with the gap.

11. The thin pump as claimed in claim 10, characterized in that, The notch faces the injection port of the frame.

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