Electromechanically decoupled pump

Abstract

An electromechanical separation pump includes a centrifugal pump with a central shaft and a chamber containing an inlet and an outlet formed within a pump housing. A shaft portion concentric with the central shaft is disposed in the middle of the chamber, and a rotatable impeller is fitted onto the shaft portion. The impeller has multiple magnetic zones. A connecting seat is connected to one side of the pump housing along the central shaft for detachably connecting to a driver housing of an impeller driver. A motor stator is fixed inside the driver housing. The impeller is spaced outside one end of the motor stator along the central shaft and is driven by the driving magnetic field generated by the motor stator. Thus, after the centrifugal pump is connected in series to a liquid pipeline, only the impeller driver can be removed from the connecting seat for replacement and maintenance, allowing the centrifugal pump to remain in place without disassembly from the liquid pipeline, achieving a more convenient maintenance effect.

Description

Technical Field

[0001] This utility model relates to a water pumping device; in particular, it refers to an electromechanical separation pump in which the centrifugal pump and the driver that drives the centrifugal pump can be separated. Background Technology

[0002] Existing electronic devices, such as servers or network switches, are facing increasing demands for heat dissipation due to their enhanced computing power. Common methods for cooling electronic devices include fans and / or liquid cooling systems. Liquid cooling systems operate by connecting a centrifugal pump in series within the liquid lines, which drives the cooling liquid to circulate within the lines, thereby removing the heat generated by the electronic devices.

[0003] The aforementioned existing centrifugal pumps typically consist of a pump body and a motor that drives the impeller. The motor's output shaft drives the impeller within the pump body to rotate, generating centrifugal force that pushes the cooling liquid entering the pump body outwards. However, the pump body and motor are usually integrated, meaning that when the motor fails, the entire pump must be removed from the liquid line. This process involves disconnecting the liquid line connectors and draining the cooling liquid, making the disassembly and replacement of existing centrifugal pumps cumbersome. Furthermore, liquid leaks can damage electronic components, hindering maintenance and failing to meet the need for easy and quick maintenance of liquid cooling systems. Summary of the Invention

[0004] In view of this, the purpose of this utility model is to provide an electromechanical separation pump. Through the design that the centrifugal pump and its impeller driver can be separated, the impeller driver can be detached from the centrifugal pump. When this utility model is applied to a liquid cooling system, the centrifugal pump can always remain connected in series with the liquid cooling system, thus achieving the effect of easy and quick maintenance of the liquid cooling system.

[0005] To achieve the above objectives, this utility model provides an electromechanical separation pump, comprising a centrifugal pump and an impeller driver. The centrifugal pump has a central shaft and includes a pump housing, an impeller, and a connecting seat; a chamber is formed within the pump housing, and the pump housing has an inlet and an outlet, which respectively lead to the center and a surrounding side of the chamber. A shaft portion is formed in the middle of the chamber, and the central shaft passes through the center of the shaft portion; the impeller has a shaft hole in its center and multiple blades around it, the shaft hole is rotatably fitted onto the shaft portion, and the impeller generates multiple different magnetic regions when magnetized or induced; the connecting seat is connected to one side of the pump housing along the central shaft.

[0006] The impeller drive includes an impeller housing and a motor stator; one end of the impeller housing forms a connecting portion, which is detachably connected to the connecting seat of the centrifugal pump, and a stator seat is formed inside the impeller housing; the motor stator includes multiple stator modules, which are arranged in a circumferential and spaced manner and coupled to the stator seat, with the central shaft passing through the center of the impeller and the center of the circumferential range of the multiple stator modules, and the impeller is spaced outside one end of the multiple stator modules along the central shaft, thereby being driven by the magnetic field generated by the multiple stator modules.

[0007] In use, the centrifugal pump is connected in series in the liquid pipeline of the liquid cooling system. The connectors at both ends of the liquid pipeline are connected to the inlet and outlet respectively. Then, the multiple stator modules of the impeller driver generate an alternating driving magnetic field to drive the impeller of the centrifugal pump to rotate. The centrifugal force generated by the rotation of the impeller pressurizes the cooling liquid entering the chamber from the inlet and then outputs it from the outlet to circulate in the liquid pipeline.

[0008] The advantage of this invention is that when a user needs to repair the motor stator used to generate the driving magnetic field, the impeller driver can be separated from the connector of the centrifugal pump for subsequent maintenance by disassembling the impeller driver from the connector. During the process, the centrifugal pump remains connected in series with the liquid pipeline, eliminating the need to disconnect the liquid pipeline joint or discharge the cooling liquid in the liquid pipeline. This makes the repair of the impeller driver easy and convenient, and avoids damage to electronic equipment due to cooling liquid leakage, achieving the effect of easy and quick maintenance of the liquid cooling system. Attached Figure Description

[0009] Figure 1 This is a perspective view of a preferred embodiment of the present invention.

[0010] Figure 2 This is a perspective view of another preferred embodiment of the present invention.

[0011] Figure 3 This is an exploded view of the centrifugal pump and impeller driver of the preferred embodiment of the present invention.

[0012] Figure 3A for Figure 3 An exploded view of the centrifugal pump.

[0013] Figure 4 This is a top view of the preferred embodiment of the present invention.

[0014] Figure 5 for Figure 4 A sectional view along the 5-5 direction.

[0015] Figure 6 for Figure 4A sectional view along the 6-6 direction.

[0016] Figure 7 This is a side view of the preferred embodiment of the present invention.

[0017] Figure 8 for Figure 7 A sectional view along the 8-8 direction.

[0018] Figure 9 for Figure 2 The diagram shows an implementation of the impeller drive being disassembled from the connector.

[0019] Figure 10 for Figure 6 The diagram shows an implementation of the impeller drive being disassembled from the connector.

[0020] Explanation of reference numerals in the attached figures

[0021] 100: Electromechanical Separation Pump

[0022] 10: Centrifugal pump

[0023] 12: Pump casing

[0024] 121: Cover

[0025] 122: Plate base

[0026] 123: Water inlet pipe

[0027] 124: Water outlet pipe

[0028] 125: Shaft

[0029] 126: Hollowed-out holes

[0030] 127: Keyhole

[0031] 128: Circuit board mounting slot

[0032] 14: Impeller

[0033] 141: Shaft hole

[0034] 142: Blade

[0035] 16: Connector

[0036] 161: Cover plate

[0037] 162: Extension tube

[0038] 163: Guide column

[0039] 164: Annular groove

[0040] 165: Frame-shaped section

[0041] 166: Notch

[0042] 167: First terminal group

[0043] 18: Circuit board

[0044] 181: Electronic contact

[0045] 182: Socket

[0046] 20: Impeller drive

[0047] 22: Driver housing

[0048] 221: Outer shell

[0049] 222: Connecting section

[0050] 223: Lug

[0051] 224: Second terminal group

[0052] 225: Base Plate

[0053] 226: Positioning seat

[0054] 2261: Guide post slot

[0055] 227: Stator

[0056] 228: Tail Seat

[0057] 24: Motor stator

[0058] 241: Stator Module

[0059] 26: Handle

[0060] L: Central axis

[0061] S: Chamber

[0062] S1: Opening

[0063] S2: Entrance

[0064] S3: Export Detailed Implementation

[0065] To more clearly illustrate this utility model, preferred embodiments are described in detail below with reference to the accompanying drawings. Please refer to... Figure 1 and Figure 2As shown, a preferred embodiment of the electromechanical separation pump 100 of this utility model is presented, comprising a centrifugal pump 10 and an impeller driver 20. The electromechanical separation pump 100 provides the function of pressurizing and transporting fluid using the centrifugal pump 10, and its design, which allows the impeller driver 20 to be separated from the centrifugal pump 10, enables the centrifugal pump 10 to remain connected in series in the liquid pipeline, facilitating maintenance or replacement of the impeller driver 20. The structure of the centrifugal pump 10 and the impeller driver 20 included in the electromechanical separation pump 100 is described below.

[0066] Please refer to Figures 1 to 6 As shown, the centrifugal pump 10 has a central shaft L and includes a pump housing 12, an impeller 14, and a connecting seat 16. The pump housing 12 has a cover 121 and a plate seat 122. The cover 121 is a circular cover, and a chamber S is formed inside the cover 121. An opening S1 is formed on the side of the cover 121 facing the impeller driver 20, and the opening S1 is connected to the chamber S. In this preferred embodiment, the opening S1 is a circular hole. A water inlet pipe 123 is connected to the center of the side of the cover 121 opposite to the impeller driver 20. The central shaft L passes through the center of the water inlet pipe 123, and an inlet S2 is formed at the outer end of the water inlet pipe 123, which leads to the center of the chamber S. A water outlet pipe 124 is connected to one side around the cover 121. The water outlet pipe 124 is parallel to the central axis L, that is, the water outlet pipe 124 is parallel to the water inlet pipe 123. An outlet S3 is formed at the outer end of the water outlet pipe 124, and the outlet S3 leads to one side around the chamber S.

[0067] A shaft portion 125 is formed in the middle of the chamber S. The shaft portion 125 is a circular tube extending from the periphery of the inner end of the water inlet pipe 123 into the chamber S. The central shaft L passes through the center of the shaft portion 125. The shaft portion 125 has multiple perforated holes 126 around it, allowing liquid entering from the inlet S2 to smoothly enter the chamber S through the perforated holes 126. The plate base 122 is connected to the periphery of the cover 121 and adjacent to the opening S1. In this preferred embodiment, the plate base 122 is a rectangular plate with its middle portion connected to the periphery of the cover 121. A lock hole 127 is formed at each of the four corners of the plate base 122, and a circuit board mounting groove 128 is formed on the side of the plate base 122. A circuit board 18 is mounted in the circuit board mounting groove 128. The end of the circuit board 18 facing away from the impeller driver 20 has multiple electronic contacts 181, and a socket 182 is located on the side of the circuit board 18.

[0068] An impeller 14 is disposed within a chamber S. The impeller 14 has a central shaft hole 141 and multiple blades 142 surrounding it. The impeller 14 is rotatably fitted onto a shaft 125 via the shaft hole 141. A central shaft L passes through the center of the impeller 14, allowing the impeller 14 to rotate within the chamber S around the central shaft L. The impeller 14 can generate multiple different magnetic regions through magnetization or induction, facilitating subsequent magnetic field driving. When the impeller 14 generates different magnetic regions after magnetization, it can be made of a ferromagnetic material. If the impeller 14 generates a magnetic field through induction, it can be made of a conductive or ferromagnetic material, or a cage-like iron core can be embedded in the annular portion of the impeller 14 surrounding the shaft hole 141. In this preferred embodiment, the impeller 14 is magnetized, resulting in multiple different magnetic regions continuously generated in a circumferential arrangement within the impeller 14 itself.

[0069] The connecting seat 16 is connected to the side of the pump housing 12 along the central axis L facing the impeller driver 20. Specifically, the connecting seat 16 includes a cover plate 161, an extension cylinder 162, and a guide post 163. The cover plate 161 is a rectangular plate and is screwed onto the periphery of the opening S1 of the cover 121. Specifically, the cover plate 161 is screwed onto the middle part of the plate seat 122 facing the impeller driver 20, and the cover plate 161 seals the opening S1, making the chamber S of the pump housing 12 a sealed space. The extension cylinder 162 is connected to the middle of the cover plate 161 and extends away from the pump housing 12. The extension cylinder 162 is a circular cylinder with a closed end away from the pump housing 12, and the central axis L passes through the center of the extension cylinder 162.

[0070] The guide post 163 is a cone shape and is connected to the center of the extension cylinder 162 at the end opposite to the pump housing 12. An annular groove 164 is formed on the side of the cover plate 161 opposite to the pump housing 12, surrounding the extension cylinder 162. The portion of the cover plate 161 outside the annular groove 164 forms a frame-shaped portion 165. In this preferred embodiment, the frame-shaped portion 165 has square sidewalls and a notch 166 opening towards the impeller driver 20. A first terminal group 167 is provided on the side of the frame-shaped portion 165 facing the impeller driver 20, and the first terminal group 167 is electrically connected to the circuit board 18.

[0071] Please refer to Figure 3 and Figures 6 to 8As shown, the impeller driver 20 includes a driver housing 22, a motor stator 24, and a handle 26. A connecting portion 222 is formed at the end of the driver housing 22 facing the connecting seat 16, through which it is detachably connected to the connecting seat 16 of the centrifugal pump 10. Specifically, the driver housing 22 has a housing portion 221, which is a tube with a central shaft L passing through its center. The connecting portion 222 is formed on the end face of the housing portion 221 facing the connecting seat 16. The connecting portion 222 abuts against the frame-shaped portion 165 of the connecting seat 16 and has a protrusion 223, which is positioned by engaging a recess 166. By engaging the protrusion 223 with the recess 166, it is ensured that the connecting portion 222 of the driver housing 22 is correctly aligned with the connecting seat 16 of the centrifugal pump 10. A second terminal group 224 is provided on the side of the connecting part 222 facing the connecting seat 16. The second terminal group 224 is electrically connected to the first terminal group 167 to form a passage. The user can determine whether the impeller driver 20 is connected to the centrifugal pump 10 by whether the second terminal group 224 and the first terminal group 167 are electrically connected to form a passage.

[0072] The drive housing 22 has a base plate 225 at the end opposite to the connector 16. The periphery of the base plate 225 is connected to the end edge of the housing portion 221 opposite to the connector 16. A positioning seat 226 is formed in the middle of the inner surface of the base plate 225. The positioning seat 226 has a guide post slot 2261, which is a tapered groove, and the central axis L passes through the center of the guide post slot 2261. The guide post slot 2261 is fitted into the guide post 163 for positioning, so that the connector portion 222 and the connector 16 can be precisely aligned. A stator seat 227 is formed on the housing portion 221. The stator seat 227 is a cylindrical body connected to the base plate 225. The central axis L passes through the center of the stator seat 227. The stator seat 227 extends out of the housing portion 221 toward the connector 16 and extends into the annular groove 164 of the connector 16. A tailstock 228 is attached to the side of the base plate 225 opposite to the connecting seat 16. In this preferred embodiment, the tailstock 228 is a rectangular shell with internal space.

[0073] The motor stator 24 includes multiple stator modules 241, each stator module 241 comprising an iron core and a coil wound around the iron core. The multiple stator modules 241 are arranged in a surrounding and spaced manner and joined to the inner side of the stator housing 227. One end of each stator module 241 facing the connecting seat 16 extends into an annular groove 164. The central shaft L passes through the center of the surrounding area of ​​the multiple stator modules 241. An extension tube 162 is accommodated between the multiple stator modules 241. A second terminal group 224 is electrically connected to the coils of the multiple stator modules 241, thereby enabling the coils of the multiple stator modules 241 to be electrically connected to the circuit board 18 via the first terminal group 167.

[0074] To generate a driving magnetic field for the multiple stator modules 241 of the motor stator 24, a driving circuit can be provided inside the driver housing 22. This driving circuit is electrically connected to the coils of the multiple stator modules 241, driving them to generate alternating driving magnetic fields. In other preferred embodiments, the driving circuit can be moved to the circuit board 18 of the centrifugal pump 10, or it can be placed on an external device electrically connected to the outside via the circuit board 18, allowing the multiple stator modules 241 of the motor stator 24 to be controlled by the driving circuit on the circuit board 18 or the external device to generate a driving magnetic field.

[0075] Impellers 14 are spaced apart at one end of multiple stator modules 241 along the central axis L, and are positioned where the driving magnetic field generated by the multiple stator modules 241 can act, allowing the impellers 14 to be driven by the driving magnetic field to rotate around the central axis L, pressurizing the liquid entering the chamber S through the inlet S2 and then outputting it out through the outlet S3. A handle 26 is attached to the other end of the driver housing 22 opposite to the connecting seat 16. Specifically, the handle 26 is attached to the side of the tailstock 228 opposite to the connecting seat 16, providing a grip for the user to pull the impeller driver 20 from the connecting seat 16 of the centrifugal pump 10. In other preferred embodiments, the handle 26 may be omitted; in this case, the user can directly grip the driver housing 22 to pull the impeller driver 20 from the connecting seat 16 of the centrifugal pump 10.

[0076] When using the preferred embodiments of the present invention described above, please refer to... Figure 3 and Figures 8 to 10 As shown, the electromechanical separator pump 100 is connected in series in the liquid pipeline of the liquid cooling system. Specifically, the connectors at both ends of the liquid pipeline are connected to the inlet S2 and outlet S3 of the centrifugal pump 10, respectively. The cooling liquid is input into the chamber S of the centrifugal pump 10 through the inlet S2. Then, the multiple stator modules 241 of the motor stator 24 of the impeller driver 20 generate an alternating driving magnetic field, driving the impeller 14 in the chamber S of the centrifugal pump 10 to rotate. The centrifugal force generated by the rotation of the impeller 14 pressurizes the cooled liquid input from the inlet S2 and outputs it through the outlet S3 into the liquid pipeline for continuous circulation.

[0077] The advantage of this invention is that the connecting seat 16 of the centrifugal pump 10 and the connecting part 222 of the impeller driver 20 are detachable. By setting the motor stator 24, which includes an iron core and a coil, on the stator seat 227 of the impeller driver 20, when the user needs to repair the motor stator 24 used to generate the driving magnetic field, the impeller driver 20 can be disassembled from the connecting seat 16 of the centrifugal pump 10 by grasping the handle 26 for subsequent maintenance. During the process, since the centrifugal pump 10 is always connected to the liquid pipeline of the liquid cooling system, there is no need to disconnect the joint of the liquid pipeline or discharge the coolant in the liquid pipeline. This makes the maintenance of the impeller driver 20 easy and convenient and avoids damage to electronic equipment due to coolant leakage, thus achieving the effect of easy and quick maintenance of the liquid cooling system.

[0078] Furthermore, the multiple perforations 126 in the shaft portion 125 of the electromechanical separator pump 100 facilitate the smooth flow of cooled liquid into the inlet S2 into the chamber S. The tapered structure of the guide post 163 of the centrifugal pump 10's connector 16 and the guide post slot 2261 of the impeller driver 20 ensures that the impeller driver 20 is coaxially aligned along the central axis L when assembled into the connector 16 of the centrifugal pump 10. Simultaneously, the engagement of the recess 166 of the centrifugal pump 10 with the protrusion 223 of the impeller driver 20 ensures the orientation and stability of the impeller driver 20 when detachably attached to the connector 16. By determining whether the first terminal group 167 of the centrifugal pump 10 is electrically connected to the second terminal group 224 of the impeller driver 20 to form a circuit, it is possible to determine whether the impeller driver 20 is connected to the centrifugal pump 10. This allows the drive circuit and its control circuit located outside the electromechanical separator pump 100 to determine the combined and separated state of the electromechanical separator pump 100 and control the motor stator 24 of the impeller driver 20 to drive the centrifugal pump 10 to operate.

[0079] The above description is only a preferred and feasible embodiment of this utility model. Any equivalent changes made by applying the specification and claims of this utility model should be included within the patent scope of this utility model.

Claims

1. An electromechanically decoupled pump characterized by, include: A centrifugal pump has a central shaft and includes a pump housing, an impeller, and a connecting seat. A chamber is formed within the pump housing, which has an inlet and an outlet, respectively leading to the center and a surrounding side of the chamber. A shaft portion is formed in the middle of the chamber, and the central shaft passes through the center of the shaft portion. The impeller has a central shaft hole and multiple blades around it. The shaft hole is rotatably fitted onto the shaft portion, and the impeller generates multiple different magnetic regions when magnetized or induced. The connecting seat is connected to one side of the pump housing along the central shaft. An impeller driver includes an impeller housing and a motor stator; one end of the impeller housing forms a connecting portion, which is detachably connected to the connecting seat of the centrifugal pump, and a stator seat is formed inside the impeller housing; the motor stator includes a plurality of stator modules, which are arranged in a circumferential and spaced manner and coupled to the stator seat, the central axis passing through the center of the impeller and the center of the circumferential range of the plurality of stator modules, the impeller being spaced apart outside one end of the plurality of stator modules along the central axis, thereby being driven by the magnetic field generated by the plurality of stator modules.

2. The electromechanically isolated pump of claim 1, wherein, The connecting seat includes a cover plate connected to one side of the pump housing along the central axis. An extension cylinder extends from the middle of the cover plate away from the pump housing. The extension cylinder is accommodated between the plurality of stator modules. A guide post is connected to one end of the extension cylinder away from the pump housing. The other end of the driver housing away from the connecting seat has a base plate. A positioning seat is formed on the inner surface of the base plate. The positioning seat has a guide post slot, which is fitted into the guide post for positioning.

3. The electromechanically isolated pump of claim 2, wherein, An annular groove is formed on the side of the cover plate opposite to the pump housing, the annular groove surrounds the extension cylinder, and the portion of the cover plate located outside the annular groove forms a frame-shaped portion with a notch; the drive housing has an outer shell portion, and the end face of the outer shell portion facing the connecting seat forms the connecting portion, the connecting portion abuts against the frame-shaped portion and has a protrusion, the protrusion being embedded in the notch for positioning; the periphery of the base plate is connected to the end edge of the outer shell portion opposite to the connecting seat; the stator base is a cylindrical tube and connected to the base plate, the end of the stator base facing the connecting seat extends out of the outer shell portion and into the annular groove, and the ends of the plurality of stator modules facing the connecting seat also extend into the annular groove.

4. The electromechanically decoupled pump of claim 3, wherein, A first terminal group is provided on the frame-shaped portion; a second terminal group is provided on the connecting portion, the second terminal group being electrically connected to the plurality of stator modules of the motor stator; the second terminal group and the first terminal group are electrically connected to form a circuit.

5. The electromechanically decoupled pump of claim 4, wherein, A plate base is formed around the pump housing, and a circuit board is attached to the plate base. The circuit board is electrically connected to the first terminal group, thereby electrically connecting the motor stator to the circuit board.

6. The electromechanically decoupled pump of claim 5, wherein, A keyhole is formed at each of the four corners around the board base, and a circuit board mounting groove is formed on the side of the circuit board; the circuit board is mounted in the circuit board mounting groove.

7. The electromechanically isolated pump of claim 5, wherein, The circuit board has multiple electronic contacts at the end opposite to the impeller driver, and a socket is located on the side of the circuit board.

8. The electromechanical separation pump as described in claim 1, wherein, The pump housing has a cover, the interior of which forms the chamber and has an opening connected to the chamber; a water inlet pipe is connected to the center of the cover, the inlet is formed at the outer end of the water inlet pipe, and the shaft portion extends from the periphery of the inner end of the water inlet pipe into the chamber and has multiple perforations; a water outlet pipe is connected to one side around the cover, the water outlet pipe is parallel to the central axis, and the outlet is formed at the outer end of the water outlet pipe; the connecting seat includes a cover plate, the cover plate is screwed onto the periphery of the opening, and the cover plate seals the opening of the cover.

9. The electromechanical separation pump as described in claim 8, wherein, An extension cylinder extends from the middle of the cover plate in a direction away from the pump housing. The extension cylinder is accommodated between the plurality of stator modules. A guide column is connected to the end of the extension cylinder away from the pump housing. The driver housing has a base plate at the other end opposite to the connector. The stator base is connected to the base plate, and a positioning seat is formed on the inner surface of the base plate. The positioning seat has a guide post slot, and the guide post slot is fitted into the guide post for positioning.

10. The electromechanical separation pump as described in claim 1, wherein, The drive housing has a tailstock at the other end opposite to the connector, and a handle is attached to the tailstock.

Images