Circulating shield pump

Abstract

The utility model relates to a circulating shield pump, which solves the problem of difficulty in installation in the prior art and adopts the technical scheme that the circulating shield pump comprises a pump body, an impeller arranged in an inner cavity of the pump body, a motor for driving the impeller and a controller arranged on the motor, the pump body is provided with a water inlet pipe section and a water outlet pipe section, and the controller is connected with a cable signal line. The electric water heater is characterized in that the water inlet pipe section and the water outlet pipe section are axially arranged, a water inlet in the water inlet pipe section and a water outlet in the water outlet pipe section are both arranged away from the motor, the arrangement position of an external connector lug of the cable signal line is matched with the position of the water inlet and the position of the water outlet, and the insertion part of the external connector lug is axially arranged and used for axial insertion. The electric pump has the advantages that the external connector lug, the water inlet and the water outlet of the cable signal line are all arranged on one side of the pump body in the axial direction, the purpose that three connectors can be connected in one direction at the same time is achieved, disassembly and assembly work can be conveniently conducted in a narrow space, and operation safety can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of water pumps, and in particular to a circulating canned pump. Background Technology

[0002] As the liquid cooling distribution system of a data center, the CDU (Coolant Distribution Unit) plays a crucial role in achieving effective heat dissipation through precise flow distribution and pressure control. Currently, most industries use stainless steel pumps as coolant circulation pumps in liquid cooling distribution systems. However, these pumps suffer from issues such as generally low electric pump efficiency, poor compatibility with liquid cooling distribution systems, and insufficient reliability. These problems are particularly prominent in terms of installation difficulties. Due to their often deep installation locations, they are not only difficult to install, disassemble, and maintain, but also pose safety hazards such as bumps or burns. Summary of the Invention

[0003] The purpose of this utility model is to solve the above-mentioned problems existing in the prior art by providing a circulating shielded pump. The external connector of the cable signal line on the controller, the water inlet on the inlet pipe section and the water outlet on the outlet pipe section are all located on one side of the pump body and are arranged axially. This not only facilitates disassembly and assembly in narrow spaces, but also reduces the possibility of bumps or burns during disassembly and assembly, and improves operational safety.

[0004] The above-mentioned technical objective of this utility model is mainly achieved through the following technical solution: a circulating shielded pump, comprising a pump body, an impeller disposed in the inner cavity of the pump body, a motor driving the impeller, and a controller disposed on the motor. The pump body has an inlet pipe section and an outlet pipe section, and a cable signal line is connected to the controller. The inlet pipe section and the outlet pipe section are located in front of the pump body, with the inlet and outlet of the inlet pipe section facing away from the motor. The external connector of the cable signal line is positioned to match the positions of the inlet and outlet, and the insertion part (a insertion slot or insertion post) of the external connector is located in front of the pump body. By placing the external connector of the cable signal line on the controller, the inlet of the inlet pipe section, and the outlet of the outlet pipe section on one side of the pump body in an axial arrangement, three components can be connected simultaneously in one direction. This not only facilitates disassembly and assembly in confined spaces but also reduces the possibility of bumps or burns during disassembly and assembly, improving operational safety.

[0005] As a further improvement and supplement to the above technical solution, this utility model adopts the following technical measures: the inlet pipe section and the outlet pipe section are respectively provided with corresponding quick-connect couplings. The corresponding quick-connect couplings can be connected to the inlet pipe section and the outlet pipe section by means of threaded connection or sealed plug-in connection. Under the premise that the inlet pipe section and the outlet pipe section are oriented in the same or approximately the same direction, the quick-connect couplings can be used to form a quick connection with the pipeline on the liquid cooling distribution system in the same direction (or relatively in the same direction) through plugging operation or to disconnect through pulling operation. This not only helps to improve the connection efficiency and reliability, but also helps to improve operational safety, reduce or even avoid the possibility of bumps or burns. Moreover, by using quick-connect couplings to perform plugging and pulling operations (i.e., plugging or pulling operation) in the same direction (or relatively in the same direction), hot plugging and pulling can be achieved (i.e., plugging and pulling operation can be performed directly when there is medium inside the pipeline without causing medium leakage), which helps to ensure the working efficiency of the liquid cooling distribution system.

[0006] Preferably, the external connector is fixed to the pump body and extends forward. The pump body is provided with reinforcing ribs that support the extended section of the external connector. The forward extension of the external connector means that the extension section forms a cantilever in front of the pump body, facilitating connection between the external connector and external connectors and preventing interference from the pump body. The reinforcing ribs support the extension section, ensuring stable fixation of the external connector to the pump body and preventing bending or displacement of the extension section under external forces, thus facilitating efficient and reliable connection between the external connector and external connectors.

[0007] Preferably, the front end of the external connector is located behind the front end of the inlet pipe section and / or the front end of the outlet pipe section. This rearward retraction of the external connector relative to the front ends of the inlet and outlet pipe sections helps protect the connector and reduces the risk of damage from accidental impacts during insertion and removal.

[0008] Preferably, the axes of the inlet pipe section, the outlet pipe section, and the insertion part are all arranged in parallel, or the axes of the inlet pipe section, the outlet pipe section, and the insertion part form an angle β between each pair, where 0 < β ≤ 30°. Preferably, the axes of the inlet pipe section, the outlet pipe section, and the insertion part are all arranged in parallel. To reduce machining accuracy, it is also feasible to have the axes of the inlet pipe section, the outlet pipe section, and the insertion part form an angle β between each pair, where 0 < β ≤ 30°, which also allows for the simultaneous connection of three connectors in one direction.

[0009] Preferably, the motor includes a housing, a rotor assembly, a stator assembly, and a shielding sleeve that isolates the rotor assembly and the stator assembly, all disposed within the housing cavity. A front cover and a rear cover are respectively provided at the front and rear ends of the shielding sleeve. The front cover cooperates with the pump body to form a pump cavity, and the impeller is disposed in the pump cavity. The rear cover cooperates with the circuit board in the controller and is used to dissipate heat from the circuit board.

[0010] Preferably, the front cover and the rear cover are respectively provided with a first sealing groove and a second sealing groove, and a sealing ring is provided in both the first sealing groove and the second sealing groove. The sealing ring seals the gap between the shielding sleeve and the front cover and the rear cover respectively.

[0011] Preferably, the bottom diameter of the first sealing groove is D1, and the bottom diameter of the second sealing groove is D2, where |D1-D2|≤5mm. This facilitates the use of sealing rings of uniform specifications in the first and second sealing grooves, avoiding the problems of configuration, management, and assembly confusion caused by sealing rings of different specifications. It also promotes unified configuration and management, improves assembly efficiency, and ensures sealing performance.

[0012] Preferably, the front and rear ends of the shielding sleeve each have an integrally formed front thickened portion and a rear thickened portion, the thickness of which is greater than the thickness of the main body of the shielding sleeve. The presence of the front and rear thickened portions helps to improve the overall strength of the shielding sleeve.

[0013] Preferably, the shielding sleeve is a plastic shielding sleeve, with the inner wall of the front thickened portion flush with the inner wall of the shielding sleeve, the outer wall of the front thickened portion protruding from the outer side of the shielding sleeve, the outer wall of the rear thickened portion flush with the outer wall of the shielding sleeve, and the inner wall of the rear thickened portion protruding from the inner side of the shielding sleeve. This facilitates demolding of the shielding sleeve during the production process.

[0014] The beneficial effects of this utility model are as follows: 1. By placing the external connector of the cable signal line on the controller, the inlet on the inlet pipe section, and the outlet on the outlet pipe section on one side of the pump body, and axially oriented, it not only facilitates disassembly and assembly work in confined spaces but also reduces the possibility of bumps or burns during disassembly and assembly, thus improving operational safety. 2. By using quick-connect couplings to perform plug-in / plug-out operations in the same direction (or relatively in the same direction), hot-plugging (i.e., plugging and unplugging can be performed directly when there is medium inside the pipeline without causing medium leakage) can be achieved, which helps ensure the working efficiency of the liquid cooling distribution system. 3. The external connector extends forward, meaning that the extension section forms a cantilever state in front of the pump body, facilitating the connection between the external connector and external connectors and avoiding interference from the pump body. The reinforcing ribs support the extension section, which helps to stably fix the external connector to the pump body and also helps to prevent the extension section from bending or shifting under external forces, facilitating efficient and reliable connection between the external connector and external connectors. 4. The external connector is recessed to protect it and reduce damage from accidental impacts during insertion and removal. 5. Determining the difference between the bottom diameters of the first and second sealing grooves allows for the use of standardized sealing rings in both grooves, avoiding configuration, management, and assembly issues caused by different ring sizes. This promotes standardized configuration and management, improves assembly efficiency, and ensures a good seal. 6. The shielding sleeve is made of plastic. The front and rear thickened sections enhance the overall strength of the shielding sleeve. Furthermore, the front thickened section is located on the outside of the shielding sleeve, while the rear thickened section is located on the inside, facilitating demolding during production. Attached Figure Description

[0015] Figure 1 This is a cross-sectional structural schematic diagram of this utility model.

[0016] Figure 2 This is a front view structural diagram of this utility model.

[0017] Figure 3 yes Figure 1 Enlarged structural diagram of section A in the middle.

[0018] Figure 4 This is a cross-sectional structural diagram of a shielding sleeve involved in this utility model.

[0019] In the diagram: 1. Pump body; 2. Impeller; 3. Controller; 4. Inlet pipe section; 5. Outlet pipe section; 6. Cable signal line; 7. Motor; 8. Sealing ring; 9. External connector; 10. Reinforcing rib; 11. Rotor shaft; 12. Shielding sleeve; 13. Front cover; 14. Rear cover; 15. Circuit board; 16. First sealing groove; 17. Second sealing groove; 18. Front thickened part; 19. Rear thickened part; 20. Main body. Detailed Implementation

[0020] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0021] In this article, "front" refers to the front of the pump body (the direction away from the controller), and "rear" is the direction opposite to "front".

[0022] Example: Figures 1-4 As shown, a circulating shielded pump includes a pump body 1, an impeller 2 disposed in the inner cavity of the pump body 1, a motor 7 driving the impeller 2, a controller 3 disposed on the motor 7, an inlet pipe section 4 and an outlet pipe section 5 on the pump body 1, and a cable signal line 6 connected to the controller 3.

[0023] The main difference between this technical solution and the prior art is that: the water inlet pipe section 4 and the water outlet pipe section 5 are located in front of the pump body, the water inlet on the water inlet pipe section 4 and the water outlet on the water outlet pipe section 5 are both located away from the motor 7, the external connector 9 of the cable signal line 6 is positioned to match the positions of the water inlet and the water outlet, and the plug-in part (a plug groove or plug post) of the external connector 9 is located in front of the pump body.

[0024] In this technical solution, the cable signal line 6 includes a power line and a signal line, which are respectively connected to corresponding connectors (such as solder wires, contact plates, etc.) inside the external connector 9. The front ends of both the power line and the signal line are sealed inside the external connector 9.

[0025] In this technical solution, the controller 3 is located at the rear end of the motor 7, the cable signal line 6 is laid from back to front, and the external connector 9 is located at the appropriate positions corresponding to the inlet and outlet of the pump body 1.

[0026] In this technical solution, the external connector 9 of the cable signal line 6 on the controller 3, the water inlet on the water inlet pipe section 4, and the water outlet on the water outlet pipe section 5 are all located on one side of the pump body 1 and are arranged axially, so that three components can be connected in one direction at the same time. This not only facilitates disassembly and assembly in a confined space, but also reduces the possibility of bumps or burns during disassembly and assembly, thus improving operational safety.

[0027] In order to further improve the efficiency of disassembling and assembling the circulating shielded pump (hereinafter referred to as operation) and improve the safety of operation, and further reduce the possibility of bumps or burns, the inlet pipe section 4 and the outlet pipe section 5 are respectively equipped with corresponding quick-connect fittings.

[0028] In this technical solution, the corresponding quick-connect fittings can be connected to the inlet pipe section 4 and the outlet pipe section 5 using threaded connection or sealed plug-in connection methods.

[0029] In this technical solution, under the premise that the inlet pipe section 4 and the outlet pipe section 5 are oriented in the same or roughly the same direction, the quick-connect coupling is used to form a quick connection with the pipeline on the liquid cooling distribution system in the same direction (or relatively in the same direction) through a plug-in operation or to disconnect the connection through a pull-out operation. This achieves the purpose of improving connection efficiency and reliability, and reducing or even avoiding collisions or burns.

[0030] Moreover, in this technical solution, by using quick-connect couplings to perform plug-in / plug-out operations (i.e., plugging or unplugging operations) in the same direction (or relative to the same direction), hot-plugging (i.e., plugging and unplugging operations can be performed directly when there is medium inside the pipeline without causing medium leakage) can be achieved, which is beneficial to ensuring the working efficiency of the liquid cooling distribution system.

[0031] In practical applications, the external connector 9 is fixed to the pump body 1 and extends forward. The pump body 1 is provided with reinforcing ribs 10, which support the extension of the external connector 9.

[0032] In this technical solution, the external connector 9 extends forward, meaning that the extension section forms a cantilever in front of the pump body 1, which facilitates the connection between the external connector 9 and the external connector and avoids interference from the pump body 1. The reinforcing rib 10 is used to support the extension section, which helps to stably fix the external connector 9 to the pump body 1 and also helps to prevent the extension section from bending and shifting under external force, thus facilitating an efficient and reliable connection between the external connector 9 and the external connector.

[0033] In practical applications, in order to protect the external connector 9, the front end of the external connector 9 is located behind the front end of the inlet pipe section 4 and / or the front end of the outlet pipe section 5.

[0034] In this technical solution, the external connector 9 is recessed backward relative to the front end of the inlet pipe section 4 and the front end of the outlet pipe section 5, which helps to protect the external connector 9 and reduce damage caused by accidental impact during insertion and removal.

[0035] In practical applications, the axis of the inlet pipe section 4, the axis of the outlet pipe section 5, and the insertion part are all arranged in parallel, or the axis of the inlet pipe section 4, the axis of the outlet pipe section 5, and the insertion part are arranged at an angle β between each pair, where 0 < β ≤ 30°.

[0036] The preferred embodiment is that the axes of the inlet pipe section 4, the outlet pipe section 5, and the insertion joint are all arranged in parallel. To reduce machining accuracy, it is also feasible to arrange the axes of the inlet pipe section 4, the outlet pipe section 5, and the insertion joint at an angle β between each pair, where 0 < β ≤ 30°. This also allows for the simultaneous connection of three joints in one direction. In practical applications, β can be any value between 0 and 30°, such as 5°, 12°, or 23°.

[0037] In practical applications, the motor 7 includes a housing, a rotor assembly, a stator assembly, and a shielding sleeve 12 that isolates the rotor assembly and the stator assembly, all disposed within the housing cavity. The front end and rear end of the shielding sleeve 12 are respectively provided with a front cover 13 and a rear cover 14. The front cover 13 cooperates with the pump body 1 to form a pump cavity, and the impeller 2 is disposed in the pump cavity. The rear cover 14 cooperates with the circuit board 15 in the controller 3, and the rear cover 14 is used to dissipate heat from the circuit board 15.

[0038] In this technical solution, bearings are installed between the front cover 13 and the rotor shaft 11 on the rotor assembly, and between the rear cover 14 and the rotor shaft 11 on the rotor assembly. The bearings have axially connected flow holes, and the rotor shaft 11 has a through-flow hole in the middle. During the operation of the circulating shielded pump, the fluid (coolant / water) inside the shielded pump circulates through the pump chamber, flow holes, and return holes. The circulating fluid can carry away the heat from the rear cover 14 (i.e., the rear cover 14 acts as a heat sink for the controller 3), thereby achieving the purpose of heat dissipation for the controller 3. The circuit board 15 is the main heat-generating component of the controller 3. Therefore, in order to improve the heat dissipation effect, the circuit board 15 is placed on the rear cover 14.

[0039] In practical applications, in order to ensure the water flow efficiency of the circulating shielded pump and reduce the possibility of fluid leakage, a first sealing groove 16 and a second sealing groove 17 are respectively provided on the front cover 13 and the rear cover 14. A sealing ring 8 is provided in both the first sealing groove 16 and the second sealing groove 17. The sealing ring 8 seals the gap between the shielding sleeve 12 and the front cover 13 and the rear cover 14 respectively.

[0040] In practical applications, in order to facilitate the assembly of sealing rings 8 of uniform specifications, the bottom diameter of the first sealing groove 16 is D1, the bottom diameter of the second sealing groove 17 is D2, and |D1-D2|≤5mm.

[0041] In this technical solution, by limiting the difference between D1 and D2, it is beneficial to use O-rings 8 of uniform specifications to be respectively set in the first sealing groove 16 and the second sealing groove 17. This avoids the problems of configuration, management, and assembly confusion caused by different specifications of O-rings 8, promotes unified configuration and management, improves assembly efficiency, and ensures sealing effect. For example, an O-ring with an inner diameter of 30 mm (i.e., sealing ring 8) has a diameter of 3.5 mm. Therefore, the sealing ring 8 can be squeezed into a sealing groove with a bottom diameter of 28 mm. Similarly, the sealing ring 8 can be stretched into a sealing groove with a bottom diameter of 32 mm. Of course, different O-rings have different diameters. In this embodiment, a more conventional O-ring with a diameter of 3.5 mm is preferred.

[0042] In this technical solution, the cross-sectional diameters of the first sealing groove 16 and the second sealing groove 17 are adapted to the diameter of the sealing ring 8, and the bottom diameters of the first sealing groove 16 and the second sealing groove 17 are adapted to the dimensions of the corresponding parts of the shielding sleeve 12.

[0043] In practical applications, to improve the overall strength of the shielding sleeve 12, the front and rear ends of the shielding sleeve 12 each have an integrally formed front thickened portion 18 and a rear thickened portion 19, the thickness of which is greater than that of the main body portion 20 of the shielding sleeve 12. The portion located between the front thickened portion 18 and the rear thickened portion 19 is the main body portion 20 of the shielding sleeve 12.

[0044] In this technical solution, since other components need to be assembled at both ends of the shielding sleeve 12, the front and rear ends of the shielding sleeve 12 are thickened respectively, which helps to improve the service life of the shielding sleeve 12.

[0045] In practical applications, the shielding sleeve 12 is a plastic shielding sleeve 12. The inner wall of the front thickened portion 18 is flush with the inner wall of the shielding sleeve 12, and the outer wall of the front thickened portion 18 protrudes from the outer side of the shielding sleeve 12. The outer wall of the rear thickened portion 19 is flush with the outer wall of the shielding sleeve 12, and the inner wall of the rear thickened portion 19 protrudes from the inner side of the shielding sleeve 12, which facilitates the demolding of the shielding sleeve 12 during the production process.

[0046] In this technical solution, the thickness of the front thickened part 18 and the rear thickened part 19 gradually decreases towards the main body part 20, forming an inclined surface that facilitates demolding.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Various modifications and variations can be made to the above embodiments. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A circulating shielded pump, comprising a pump body (1), an impeller (2) disposed in the inner cavity of the pump body (1), a motor (7) driving the impeller (2), a controller (3) disposed on the motor (7), the pump body (1) having an inlet pipe section (4) and an outlet pipe section (5), and a cable signal line (6) connected to the controller (3), characterized in that... The inlet pipe section (4) and the outlet pipe section (5) are located in front of the pump body. The inlet on the inlet pipe section (4) and the outlet on the outlet pipe section (5) are both located away from the motor (7). The location of the external connector (9) of the cable signal line (6) is adapted to the location of the inlet and the outlet, and the plug-in part of the external connector (9) is located in front of the pump body.

2. The circulating shielded pump according to claim 1, characterized in that... The inlet pipe section (4) and the outlet pipe section (5) are respectively equipped with corresponding quick-connect fittings.

3. The circulating shielded pump according to claim 2, characterized in that... The external connector (9) is fixed to the pump body (1) and extends forward. The pump body (1) is provided with reinforcing ribs (10), which support the extension of the external connector (9).

4. The circulating shielded pump according to claim 3, characterized in that... The front end of the external connector (9) is located behind the front end of the inlet pipe section (4) and / or the front end of the outlet pipe section (5).

5. The circulating shielded pump according to claim 4, characterized in that... The axis of the inlet pipe section (4), the axis of the outlet pipe section (5), and the insertion part are all arranged in parallel, or the axis of the inlet pipe section (4), the axis of the outlet pipe section (5), and the insertion part are arranged at an angle β between each pair, where 0 < β ≤ 30.

6. The circulating canned pump according to any one of claims 1-5, characterized in that... The motor (7) includes a housing, a rotor assembly, a stator assembly, and a shielding sleeve (12) that isolates the rotor assembly and the stator assembly in the inner cavity of the housing. The front end and the rear end of the shielding sleeve (12) are respectively provided with a front cover (13) and a rear cover (14). The front cover (13) cooperates with the pump body (1) to form a pump cavity. The impeller (2) is disposed in the pump cavity. The rear cover (14) cooperates with the circuit board (15) in the controller (3). The rear cover (14) is used to dissipate heat from the circuit board (15).

7. The circulating shielded pump according to claim 6, characterized in that... The front cover (13) and the rear cover (14) are respectively provided with a first sealing groove (16) and a second sealing groove (17). A sealing ring (8) is provided in both the first sealing groove (16) and the second sealing groove (17). The sealing ring (8) seals the gap between the shielding sleeve (12) and the front cover (13) and the rear cover (14).

8. The circulating shielded pump according to claim 7, characterized in that... The bottom diameter of the first sealing groove (16) is D1, and the bottom diameter of the second sealing groove (17) is D2, |D1-D2|≤5mm.

9. The circulating shielded pump according to claim 7, characterized in that... The shielding sleeve (12) has an integral front thickened part (18) and a rear thickened part (19) at its front and rear ends, respectively. The thickness of the front thickened part (18) and the rear thickened part (19) is greater than the thickness of the main body part (20) of the shielding sleeve (12).

10. The circulating shielded pump according to claim 9, characterized in that... The shielding sleeve (12) is a plastic shielding sleeve (12). The inner wall of the front thickened part (18) is flush with the inner wall of the shielding sleeve (12). The outer wall of the front thickened part (18) protrudes from the outer side of the shielding sleeve (12). The outer wall of the rear thickened part (19) is flush with the outer wall of the shielding sleeve (12). The inner wall of the rear thickened part (19) protrudes from the inner side of the shielding sleeve (12).

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