Water pump structure and engine

Abstract

This utility model belongs to the field of engine technology, specifically relating to a water pump structure and an engine. In this utility model, the impeller of the water pump structure is housed within a cavity and can rotate around its own axis. A magnetic element is mounted on the impeller. The stator assembly is located outside the housing and is positioned along the impeller axis corresponding to the magnetic element. The stator assembly is configured to cooperate with the magnetic element and drive the impeller to rotate. The power supply is electrically connected to the stator assembly. By using the water pump structure in this technical solution, the power supply can provide power to the stator assembly. Under the power supply, the stator assembly can generate a rotating magnetic field, which drives the impeller to rotate through the magnetic element on the impeller. This utility model utilizes electromagnetic principles, eliminating the rigid connection between the power source and the impeller in the water pump structure. It adopts a non-contact magnetic drive structure between the winding coil and the magnetic element, eliminating the need for sealing the water pump structure, reducing the risk of leakage, and improving reliability.

Description

Technical Field

[0001] This utility model belongs to the field of engine technology, specifically relating to a water pump structure and an engine. Background Technology

[0002] Currently, the water pumps used in the engines of hybrid light trucks are primarily either mechanically driven or electrically driven. Mechanically driven pumps are generally belt-driven or gear-driven, while electrically driven pumps have a drive motor. Both drive methods use an external power source to act on the input shaft, which in turn drives the impeller inside the water pump. Because liquid flows inside the water pump, proper sealing is necessary, but long-term use will inevitably lead to the risk of leakage or malfunction, reducing reliability. Utility Model Content

[0003] The purpose of this invention is to at least solve the problem of high leakage risk in existing water pumps. This purpose is achieved through the following technical solution:

[0004] The first aspect of this utility model provides a water pump structure, comprising:

[0005] The pump body includes an impeller and a housing. The housing has a receiving cavity, the impeller is disposed in the receiving cavity and can rotate about its own axis, and a magnetic element is provided on the impeller.

[0006] A stator assembly is disposed outside the housing and is arranged along the axial direction of the impeller corresponding to the magnetic element. The stator assembly is configured to cooperate with the magnetic element and drive the impeller to rotate.

[0007] The power supply is electrically connected to the stator assembly.

[0008] By using the water pump structure in this technical solution, the power supply can provide power to the stator assembly. Under the power supply, the stator assembly can generate a rotating magnetic field, and drive the impeller to rotate through the magnetic element on the impeller. This utility model utilizes the electromagnetic principle to eliminate the rigid connection between the power source and the impeller of the water pump structure. It adopts a non-contact magnetic drive structure between the winding coil and the magnetic element, which eliminates the need for sealing the water pump structure, reduces the risk of water leakage, and improves reliability.

[0009] In addition, the water pump structure according to this utility model may also have the following additional technical features:

[0010] In some embodiments of this utility model, the impeller includes a main body, two connecting parts, and multiple blades. The multiple blades are spaced apart on the circumferential outer side of the main body. The two connecting parts are located on both sides of the main body along its own axial direction and are rotatably connected to the outer casing. The axial direction of the main body and the axial direction of the impeller coincide.

[0011] In some embodiments of this utility model, the receiving cavity includes a first cavity and two second cavities. The two second cavities are symmetrically arranged about the first cavity along the axial direction of the impeller and are connected to the first cavity. The main body and the plurality of blades are all disposed in the first cavity, and the two connecting parts are disposed in the two second cavities in a corresponding manner.

[0012] In some embodiments of this utility model, the pump body further includes two bearings, which are respectively sleeved on the two connecting parts and respectively connected to the inner wall surfaces of the two second cavities.

[0013] In some embodiments of this utility model, a groove is provided on the side of the main body facing the stator assembly, and the magnetic element is disposed in the groove.

[0014] In some embodiments of this utility model, multiple magnetic elements are provided, and the multiple magnetic elements are spaced apart around the axial direction of the impeller.

[0015] In some embodiments of this utility model, the stator assembly includes a winding coil, a stator core, and a controller. The winding coil is disposed on the stator core, and the controller is electrically connected between the power supply and the winding coil.

[0016] In some embodiments of this utility model, a phase sensor is also provided on the impeller, and the phase sensor is used to detect the phase of the impeller.

[0017] In some embodiments of this utility model, the outer shell includes a housing and an end cap, the housing has an open end, the end cap is disposed on the open end, and the housing and the end cap together form the receiving cavity.

[0018] The second aspect of this utility model discloses an engine, comprising:

[0019] The engine body has cooling channels within it;

[0020] A water tank, wherein one end of the cooling channel is connected;

[0021] The water pump structure is the same as described above, and the receiving cavity of the water pump structure is connected to the other end of the cooling channel and the water tank respectively. Attached Figure Description

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0023] Figure 1 A schematic diagram of the structure of an engine according to an embodiment of the present invention is shown;

[0024] Figure 2 for Figure 1 A top view of the engine structure;

[0025] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0026] Figure 4 for Figure 1 A partial structural diagram of a medium-pressure water pump.

[0027] The labels in the attached diagram are as follows:

[0028] 100. Water pump structure;

[0029] 10. Pump body; 11. Outer casing; 111. Housing; 112. End cover; 121. Main body; 122. Blade section; 123. Connecting part; 13. Bearing; 14. Magnetic element;

[0030] 20. Stator assembly; 21. Winding coil; 22. Stator core; 23. Controller;

[0031] 30. Power supply;

[0032] 200. Water tank;

[0033] 300. Engine body. Detailed Implementation

[0034] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0035] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0036] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0037] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.

[0038] Currently, the water pumps used in the engines of hybrid light trucks are primarily either mechanically driven or electrically driven. Mechanically driven pumps are generally belt-driven or gear-driven, while electrically driven pumps have a drive motor. Both drive methods use an external power source to act on the input shaft, which in turn drives the impeller inside the water pump. Because liquid flows inside the water pump, proper sealing is necessary, but long-term use will inevitably lead to the risk of leakage or malfunction, reducing reliability.

[0039] Figure 1A schematic diagram of the engine structure according to an embodiment of the present invention is shown. Figure 1 As shown, this utility model proposes a water pump structure 100 and an engine. The water pump structure 100 of this utility model includes a pump body 10 and a stator assembly 20. The pump body 10 includes an impeller and a housing 11. The housing 11 has a receiving cavity. The impeller is disposed in the receiving cavity and can rotate about its own axis. A magnetic element 14 is disposed on the impeller. The stator assembly 20 includes a winding coil 21. Along the axial direction of the impeller, the winding coil 21 is disposed on one side outside the housing 11 and is correspondingly disposed with the magnetic element 14. The winding coil 21 is configured to be able to magnetically cooperate with the magnetic element 14 and drive the impeller to rotate.

[0040] In some embodiments of this utility model, such as Figure 1 As shown, the stator assembly 20 also includes a stator core 22 and a controller 23. The winding coil 21 is embedded in the stator core 22, and the controller 23 is electrically connected between the power supply 30 and the winding coil 21. In this embodiment, the stator core 22 is made of stacked silicon steel sheets with high magnetic permeability, providing a low magnetic reluctance path for the motor's magnetic field. When the stator winding coil 21 is energized, the magnetic lines of force generated by the current mainly pass through the closed core, forming a concentrated and effective magnetic field, ensuring efficient conversion of electrical energy into mechanical energy.

[0041] Specifically, in this embodiment, the controller 23 can sequentially control the current switching of the evenly distributed winding coil 21, and the rotating magnetic field generated when energized is used to drive the impeller to rotate.

[0042] Specifically, in this embodiment, the winding coil 21 and the stator core 22 are equivalent to the stator, the magnetic element 14 and the impeller are equivalent to the rotor, and the cooperation between the stator and the rotor enables the stator assembly 20 to drive the impeller.

[0043] By using the water pump structure 100 in this technical solution, the power supply 30 can provide power to the winding coil 21. Under the power supply, the winding coil 21 can generate a rotating magnetic field, which drives the impeller to rotate through the magnetic element 14 on the impeller. This utility model utilizes the electromagnetic principle to eliminate the rigid connection between the power source and the impeller of the water pump structure 100. It adopts a non-contact magnetic transmission structure between the winding coil 21 and the magnetic element 14, which eliminates the need to seal the water pump structure 100, reduces the risk of water leakage, and improves reliability.

[0044] In some embodiments of this utility model, such as Figure 2 and 3As shown, the impeller includes a main body 121, two connecting parts 123, and multiple blades 122. The multiple blades 122 are arranged around the outer circumference of the main body 121. The two connecting parts 123 are respectively located on both sides of the main body 121 along its own axial direction and are rotatably connected to the outer casing 11. The axial direction of the main body 121 coincides with the axial direction of the impeller. In this embodiment, the multiple blades 122 can rotate clockwise or counterclockwise when the impeller rotates, thereby interacting with the liquid inside the outer casing 11 and converting it into static pressure energy and kinetic energy of the liquid, thereby realizing the transport and lifting of the liquid.

[0045] Specifically, in this embodiment, such as Figure 3 As shown, two connecting parts 123 are respectively located on both sides of the main body 121, which can rotatably connect the impeller to the outer casing 11, ensuring that the impeller can rotate stably in a clockwise or counterclockwise direction, thus improving the reliability of the impeller rotation.

[0046] Specifically, in this embodiment, the magnetic element 14 is a permanent magnet. The permanent magnet is attached to the side of the main body 121 facing the stator assembly 20, so that the permanent magnet can better and closer correspond to the winding coil 21, making it easier for the impeller to rotate through the permanent magnet.

[0047] In some embodiments of this utility model, the receiving cavity includes a first cavity and two second cavities. The two second cavities are symmetrically arranged about the first cavity along the impeller axis. The main body 121 and multiple blades 122 are all located in the first cavity and are connected to it. Two connecting parts 123 are correspondingly located in the two second cavities. In this embodiment, the first cavity is used to receive the main body 121 and multiple blades 122, and the two second cavities are used to receive the two connecting parts 123 respectively. Each connecting part 123 is located in one second cavity. The second cavities can support the connecting parts 123, ensuring that the impeller can rotate stably, thus improving stability and reliability.

[0048] Specifically, in this embodiment, the main body 121 has gaps between its two sides along its own axial direction and the outer casing 11, which can ensure that the impeller will not rub against the outer casing 11 when it rotates, thereby improving the service life of the outer casing 11 and the impeller.

[0049] In some embodiments of this utility model, such as Figure 2 and 3As shown, the pump body 10 also includes two bearings 13, which are correspondingly fitted onto the two connecting portions 123 and connected to the inner wall surfaces of the two second cavities. In this embodiment, the inner ring of the bearing 13 is connected to the connecting portion 123, and the outer ring of the bearing 13 is connected to the inner wall surface of the second cavity, which can support the connecting portion 123 and reduce the mechanical load friction coefficient of the connecting portion 123 during transmission.

[0050] In some embodiments of this invention, the main body 121 has a groove on the side facing the winding coil 21, and the magnetic element 14 is disposed within the groove. In this embodiment, disposing the magnetic element 14 within the groove reduces the length of the impeller along its own axial direction, thereby making the impeller more compact. Simultaneously, disposing the magnetic element 14 within the groove avoids interference between the inner wall of the outer casing 11 and the magnetic element 14, ensuring that the magnetic element 14 is protected from damage and extending its service life.

[0051] Specifically, in this embodiment, the magnetic element 14 can be connected to the inner wall of the groove by adhesive bonding, which is simple and convenient to operate. Alternatively, the magnetic element 14 can be inserted into the groove by interference fit, which improves the connection strength and reliability between the magnetic element 14 and the groove.

[0052] In some embodiments of this utility model, such as Figure 4 As shown, multiple magnetic elements 14 are provided, and the multiple magnetic elements 14 are spaced apart around the impeller axially. In this embodiment, the multiple magnetic elements 14 are respectively attached to multiple grooves on the side of the main body 121 facing the stator assembly 20. The multiple magnetic elements 14, in conjunction with the energized winding coil 21, enable the winding coil 21 to exert a greater magnetic driving force on the impeller, thereby further improving the control force of the stator assembly 20 over the impeller.

[0053] In some embodiments of this invention, a phase sensor is also provided on the impeller, which is used to detect the phase of the impeller. In this embodiment, the phase sensor is used to determine the initial phase and rotational speed of the impeller, and the controller 23 controls the on / off state and on / off frequency of the winding coil 21 during startup based on the initial phase and the rate of phase change.

[0054] In some embodiments of this utility model, such as Figure 1 As shown, the outer casing 11 includes a housing 111 and an end cap 112. The housing 111 has an open end, and the end cap 112 covers the open end. The housing 111 and the end cap 112 enclose a receiving cavity. In this embodiment, the outer casing 11 adopts a split structure of housing 111 and end cap 112, which facilitates the assembly of the impeller into the receiving cavity and the removal of the impeller from the receiving cavity, thereby improving the assembly and disassembly efficiency of the overall water pump structure 100.

[0055] Specifically, in this embodiment, the housing 111 and the end cap 112 can be connected by bolts. Bolt connections usually do not require complex welding or riveting processes. They can be installed using simple tools and are easy to install. They not only allow for simple installation and connection but also facilitate disassembly, thus improving the efficiency of assembly and disassembly between the housing 111 and the end cap 112.

[0056] Furthermore, in this embodiment, the stator assembly 20 also includes a base, on which the winding coil 21, stator core 22 and power supply 30 are all mounted. The base can provide support and ensure stable operation of the winding coil 21, stator core 22 and power supply 30.

[0057] The water pump structure 100 of this invention replaces the external power source of the engine's water pump structure 100 with an independent winding coil 21 and stator core 22 (stator). The winding coil 21 is electrically connected to the power supply 30 and the controller 23. The impeller has a permanent magnet (rotor) and a phase sensor. There is no direct input shaft connection between the winding coil 21 and the impeller. Instead, the controller 23 sequentially controls the current flow of the winding coil 21 to generate an alternating magnetic field that drives the impeller to rotate. The controller 23 can also control the current magnitude and on / off frequency to control the impeller's speed and power. The housing 11 of the water pump structure 100 eliminates the through-hole and seal, reducing the risk of leakage and avoiding the uneven wear of existing mechanical water pumps.

[0058] This utility model also proposes an engine, such as Figure 1 As shown, it includes:

[0059] Engine body 300, with cooling channels inside;

[0060] Water tank 200, which is connected to one end of the cooling channel;

[0061] The water pump structure 100 is the same as described above. The receiving cavity of the water pump structure 100 is connected to the other end of the cooling channel and the water tank 200.

[0062] By using the engine in this technical solution, the pump body 10 of the water pump structure 100 can rotate under the drive of the winding coil 21, and draw liquid water from the water tank 200. The liquid water then flows to the cooling channel of the engine body 300. After cooling the engine body 300, the liquid water flows back to the water tank 200, and the cycle repeats. Under the supply of electricity, the winding coil 21 can generate a rotating magnetic field, which drives the impeller to rotate through the magnetic element 14 on the impeller. This invention utilizes electromagnetic principles, eliminating the rigid connection between the power source and the impeller of the water pump structure 100. It adopts a non-contact magnetic transmission structure between the winding coil 21 and the magnetic element 14, eliminating the need for sealing the water pump structure 100, reducing the risk of leakage, and improving reliability.

[0063] Specifically, in this embodiment, the receiving cavity has a first opening and a second opening, the first opening being connected to the water tank 200, and the second opening being connected to the other end of the cooling channel.

[0064] Furthermore, in this embodiment, a temperature sensor is provided between the cooling water channel and the water tank 200. The stable sensor is used to detect the water temperature of the engine body 300, and the controller 23 realizes precise control of the flow rate and velocity of the water pump structure 100 to improve the thermal efficiency of the engine.

[0065] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A water pump structure, characterized in that, include: The pump body includes an impeller and a housing. The housing has a receiving cavity, the impeller is disposed in the receiving cavity and can rotate about its own axis, and a magnetic element is provided on the impeller. A stator assembly is disposed outside the housing and is arranged along the axial direction of the impeller corresponding to the magnetic element. The stator assembly is configured to cooperate with the magnetic element and drive the impeller to rotate. The power supply is electrically connected to the stator assembly.

2. The water pump structure according to claim 1, characterized in that, The impeller includes a main body, two connecting parts, and multiple blades. The multiple blades are spaced apart on the outer circumferential side of the main body. The two connecting parts are located on both sides of the main body along its own axial direction and are rotatably connected to the outer casing. The axial direction of the main body and the axial direction of the impeller are coincident.

3. The water pump structure according to claim 2, characterized in that, The receiving cavity includes a first cavity and two second cavities. The two second cavities are symmetrically arranged about the first cavity along the axial direction of the impeller and are connected to the first cavity. The main body and the plurality of blades are all located in the first cavity, and the two connecting parts are correspondingly located in the two second cavities.

4. The water pump structure according to claim 3, characterized in that, The pump body also includes two bearings, which are respectively sleeved on the two connecting parts and connected to the inner wall surfaces of the two second cavities.

5. The water pump structure according to claim 2, characterized in that, The main body has a groove on the side facing the stator assembly, and the magnetic element is disposed in the groove.

6. The water pump structure according to any one of claims 1-5, characterized in that, The magnetic element is provided in multiple ways, and the multiple magnetic elements are spaced apart around the axial direction of the impeller.

7. The water pump structure according to any one of claims 1-5, characterized in that, The stator assembly includes a winding coil, a stator core, and a controller. The winding coil is disposed on the stator core, and the controller is electrically connected between the power supply and the winding coil.

8. The water pump structure according to any one of claims 1-5, characterized in that, The impeller is also equipped with a phase sensor, which is used to detect the phase of the impeller.

9. The water pump structure according to any one of claims 1-5, characterized in that, The outer casing includes a housing and an end cap. The housing has an open end, and the end cap is disposed on the open end. The housing and the end cap together form the receiving cavity.

10. An engine, characterized in that, include: The engine body has cooling channels within it; A water tank, wherein one end of the cooling channel is connected; A water pump structure, wherein the water pump structure is the water pump structure according to any one of claims 1-9, and the receiving cavity of the water pump structure is respectively connected to the other end of the cooling channel and the water tank.

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