Impeller-rotor bracket integrated component, rotor assembly and electronic water pump applying rotor assembly

Abstract

The utility model discloses an impeller-rotor bracket integrated component, a rotor assembly and an electronic water pump using the same, and relates to the technical field of electronic water pumps and parts thereof, the impeller-rotor bracket integrated component comprises a rotor bracket part used for fixedly installing a magnetic ring component and a bearing; the impeller part is used for driving the liquid medium to flow; the rotor bracket portion and the impeller portion are configured as an integrally injection molded structure. The utility model mainly solves the problem of how to provide an integrated structure rotor assembly which is reasonable in structure, low in research and development cost, low in manufacturing cost and easy to produce and manufacture. The rotor support part and the impeller part do not need to be assembled again, the working procedures of the rotor assembly and the electronic water pump are omitted, ultrasonic welding equipment does not need to be configured, and the rotor assembly has the advantages of being reasonable in structure, low in research and development cost, low in manufacturing cost and easy to produce and manufacture.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic water pump and its spare part technical field, concretely is a kind of impeller-rotor support integrated component, rotor assembly and the electronic water pump of applying it. BACKGROUND

[0002] Electronic water pump has higher output efficiency and can realize accurate flow control, so electronic water pump is widely used in household appliances, automobiles and industrial equipment, for example, water heating mattress, air conditioner and humidifying electric appliance and other household appliances, in order to realize accurate liquid circulation / discharge function, electronic water pump is equipped more and more at present.

[0003] Rotor assembly is one of the core components of electronic water pump, it at least includes rotor support, magnetic ring set on rotor support and impeller arranged in one end of rotor support, after the energization of the stator assembly of electronic water pump, rotating magnetic field can be generated, the magnetic ring of rotor assembly is driven by the magnetic coupling of the rotating magnetic field, can rotate in the rotor cavity of electronic water pump, and then drive rotor support and impeller to rotate together, impeller in rotation can drive liquid directional flow, to complete the basic function of electronic water pump.

[0004] The Chinese utility model patent announcement text with the announcement number CN220470281U and the name "rotor assembly and the electronic water pump of applying it", and the Chinese utility model patent announcement text with the announcement number CN222162941U and the name "integrated rotor assembly and the electronic water pump of applying it" both disclose the typical rotor assembly structure applied to electronic water pump.

[0005] The rotor assembly described above, whether its blade is integrated on impeller or integrated on rotor support, needs to be welded and fixed by ultrasonic welding procedure to obtain integrated structure rotor assembly.

[0006] The rotor assembly of the structure still has certain technical problems:

[0007] 1, the rotor assembly of the structure, when producing, needs to design structure, open mould and injection moulding to impeller and rotor support respectively, and its research and development and manufacturing cost are relatively high relatively high;

[0008] 2, the rotor assembly of the structure needs to be welded and fixed by ultrasonic welding procedure to obtain integrated structure rotor assembly.

[0009] In summary, how to provide integrated structure rotor assembly with reasonable structure, low research and development cost, low manufacturing cost and easy production and manufacture becomes a problem to be solved. Utility Model Content

[0010] The purpose of this utility model is to provide an integrated impeller-rotor support component, a rotor assembly, and an electronic water pump using the same, which has the characteristics of reasonable structure, low R&D cost, low manufacturing cost, and easy production.

[0011] To achieve the above objectives, this utility model provides the following technical solution: an integrated impeller-rotor support component, comprising:

[0012] The rotor support section is used to fix and install the magnetic ring component and the bearing component;

[0013] And the impeller section, which is used to drive the flow of the liquid medium;

[0014] The rotor support portion and the impeller portion are configured as an integral injection-molded structure.

[0015] In the above technical solution, the impeller part includes an impeller platform formed at one end of the rotor support part, and a plurality of blades arranged in the circumferential direction on the impeller platform; wherein the gap between each pair of adjacent blades is configured as a liquid medium flow channel.

[0016] In the above technical solution, the leading edge of the blade is configured as a rounded corner structure.

[0017] In the above technical solution, the leading edge of the blade is configured to be inclined to the impeller platform.

[0018] In the above technical solution, the impeller portion further includes an impeller cover; the impeller cover is formed on the top of the blade, and the impeller cover connects all the blades in the circumferential direction.

[0019] In the above technical solution, the outer wall of the rotor support portion is concave in its radial direction to form a magnetic ring groove for fixing and installing the magnetic ring component.

[0020] In the above technical solution, the inner side of the rotor support portion is recessed along its axial direction to form a bearing groove for fixing and installing bearing components.

[0021] A rotor assembly includes the aforementioned integrated impeller-rotor support component; it also includes a magnetic ring component and a bearing component; the magnetic ring component is sleeved and embedded in the outer wall of the rotor support portion of the integrated impeller-rotor support component; the bearing component is embedded in the inner side of the rotor support portion of the integrated impeller-rotor support component.

[0022] In the technical scheme, the outer wall of the rotor support part is concave along the radial direction thereof to form a magnetic ring embedding groove; the magnetic ring component is sleeved and embedded in the magnetic ring embedding groove of the impeller-rotor support integrated component; the inner side of the rotor support part is concave along the axial direction thereof to form a bearing embedding groove; and the bearing component is embedded in the bearing embedding groove of the impeller-rotor support integrated component.

[0023] An electronic water pump comprising the rotor assembly.

[0024] Compared with the prior art, the impeller-rotor support integrated component, the rotor assembly and the electronic water pump using the same have the following beneficial effects: the rotor support part and the impeller part are configured as an integrally injection molded structure; the magnetic ring component and the bearing component are combined with the impeller-rotor support integrated component through an integrally injection molding process to form an integrated rotor assembly which can be directly applied to the electronic water pump after simple surface treatment, without the need for assembling (such as ultrasonic welding or screw locking) the rotor support part and the impeller part, thereby saving the process of the rotor assembly and the electronic water pump, and eliminating the need for ultrasonic welding equipment, so that the utility model has the characteristics of reasonable structure, low research and development cost, low manufacturing cost and easy production and manufacturing. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a perspective view of the impeller-rotor support integrated component in the utility model.

[0026] Figure 2 It is a perspective view of the rotor assembly in the utility model.

[0027] Figure 3 It is an exploded view of the rotor assembly in the utility model.

[0028] Figure 4 It is a cross-sectional view of the rotor assembly in the utility model.

[0029] The reference signs are: 1, impeller-rotor support integrated component; 11, rotor support part; 111, magnetic ring embedding groove; 112, bearing embedding groove; 12, impeller part; 121, impeller platform; 122, blade; 1221, leading edge; 123, impeller cover; 2, magnetic ring component; 3, bearing component; 10, liquid medium flow channel. DETAILED DESCRIPTION

[0030] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0031] The present embodiment provides a impeller-rotor support integrated component, which can be used as a structural support base and a functional support base of a rotor assembly in a water pump (especially an electronic water pump).

[0032] Referring to Figure 1 The impeller-rotor support integrated component 1 of the present embodiment comprises:

[0033] A rotor support part 11 for fixedly mounting a magnetic ring component 2 and a bearing component 3;

[0034] A impeller part 12 for driving liquid medium flow;

[0035] The rotor support part 11 and the impeller part 12 are configured as an integrally injection molded structure.

[0036] Specifically, the rotor support part 11 and the impeller part 12 of the impeller-rotor support integrated component 1 are an integrated structure made of engineering plastic material, without the need for assembling (such as ultrasonic welding fixation or screw locking, etc.) the rotor support part 11 and the impeller part 12.

[0037] Specifically, the impeller part 12 comprises an impeller platform 121 formed at one end of the rotor support part 11, and a plurality of blades 122 arranged in a circumferential direction on the impeller platform 121. In fact, the impeller platform 121 is a circular table-shaped structure feature extending radially outward relative to the rotor support part 11, and the blade 122 is a plurality of sheet-shaped bodies integrally formed on the impeller platform 121 and arranged uniformly in the circumferential direction. The gap between each adjacent two blades 122 is configured as a liquid medium flow channel 10.

[0038] Further, the leading edge 1221 of the blade 122 is configured as a rounded structure which is integrally injection molded with the blade 122. By configuring the leading edge 1221 of the blade 122 as a rounded structure, the radial assistance of the liquid medium to the blade 122 is lower when the impeller-rotor support integrated component 1 rotates, so that the blade 122 obtains better fluid mechanics performance.

[0039] Further, the leading edge 1221 of the blade 122 is configured to be inclined to the structure of the impeller platform 121; configuring the leading edge 1221 of the blade 122 to be inclined to the structure of the impeller platform 121 also makes the radial assistance of the liquid medium to the blade 122 lower when the impeller-rotor support integrated component 1 rotates, so that the blade 122 obtains better fluid mechanics performance.

[0040] Further, the impeller part 12 further comprises an impeller cover 123, which is actually a circular ring structure feature integrally injection molded with the impeller-rotor support integrated component 1; the impeller cover 123 is molded at the top of the blade 122, and the impeller cover 123 connects all the blades 122 in the circumferential direction.

[0041] Specifically, the outer wall of the rotor support part 11 is concave in its radial direction, forming a magnetic ring embedding groove 111 to fixedly install the magnetic ring component 2.

[0042] Specifically, the inner side of the rotor support part 11 is concave in its axial direction, forming a bearing embedding groove 112 to fixedly install the bearing component 3.

[0043] The embodiment also provides a rotor assembly, which can be used as a rotor assembly in a water pump (especially an electronic water pump) to drive the flow of liquid medium.

[0044] Please refer to Figures 2-4 The rotor assembly of the embodiment comprises the above-mentioned impeller-rotor support integrated component 1.

[0045] The rotor assembly of the embodiment further comprises a magnetic ring component 2 and a bearing component 3; wherein the magnetic ring component 2 is a metal ring-shaped component with permanent magnetism, and the bearing component 3 is one of a graphite bearing, a ceramic bearing, and a self-lubricating bushing.

[0046] The magnetic ring component 2 is sleeved and embedded at the outer wall of the rotor support part 11 of the impeller-rotor support integrated component 1; the bearing component 3 is embedded at the inner side of the rotor support part 11 of the impeller-rotor support integrated component 1.

[0047] Specifically, the magnetic ring component 2 is sleeved and embedded in the magnetic ring embedding groove 111 of the impeller-rotor support integrated component 1, in this way, the surface of the magnetic ring component 2 is flush with the surface of the rotor support part 11 of the impeller-rotor support integrated component 1, reducing the protrusion of the rotor assembly, thereby optimizing the fluid mechanics performance of the entire rotor assembly.

[0048] Specifically, the bearing member 3 is embedded in the bearing embedding groove 112 of the impeller-rotor support integrated member 1, in the embodiment, the impeller-rotor support integrated member 1 is provided with one bearing embedding groove 112 at each end, and correspondingly, the impeller-rotor support integrated member 1 is provided with one bearing member 3 at each end.

[0049] In the manufacturing of the rotor assembly of the embodiment, the magnetic ring member 2 and the bearing member 3 are respectively placed in the forming mold of the impeller-rotor support integrated member 1, plastic material is injected into the forming mold, and after the cooling and solidification and demolding processes, the impeller-rotor support integrated member 1 is obtained, at this time, the magnetic ring member 2 and the bearing member 3 are also integrated with the impeller-rotor support integrated member 1 to obtain the entire rotor assembly, without the need for assembling (such as ultrasonic welding or screw locking) the rotor support part 11 and the impeller part 12 again.

[0050] In the use of the rotor assembly of the embodiment, the entire rotor assembly is supported in the cavity of the water pump through the cooperation of the shaft core and the bearing member 3; after the stator assembly of the water pump is powered on, a rotating magnetic field can be generated, the rotating magnetic field magnetically couples to drive the rotor assembly to rotate in the cavity of the water pump, and the impeller part 12 in rotation can drive the directional flow of the liquid, thereby completing the basic function of the electronic water pump.

[0051] The embodiment also provides an electronic water pump comprising the above rotor assembly.

[0052] The impeller-rotor support integrated member, the rotor assembly and the electronic water pump applying the same of the embodiment have the rotor support part 11 and the impeller part 12 configured as an integral injection molding structure, after the magnetic ring member 2 and the bearing member 3 are integrated with the impeller-rotor support integrated member 1 through the integral injection molding process, a rotor assembly capable of being directly applied to an electronic water pump is obtained through simple surface treatment, without the need for assembling (such as ultrasonic welding or screw locking) the rotor support part 11 and the impeller part 12 again, the process of the rotor assembly and the electronic water pump is saved, and ultrasonic welding equipment is not needed, so that the embodiment has the characteristics of reasonable structure, low research and development cost, low manufacturing cost and easy production and manufacturing.

[0053] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An integrated impeller-rotor support component, characterized in that, Comprising: a rotor support portion for mounting a magnetic ring member and a bearing member; and, an impeller portion for driving liquid medium flow; wherein the rotor support portion and the impeller portion are configured as an integrally injection molded structure.

2. The impeller-rotor support integrated member according to claim 1, characterized by The impeller portion includes an impeller platform formed at one end of the rotor support portion, and a plurality of blades arranged in a circumferential direction on the impeller platform; wherein a gap between each adjacent two blades is configured as a liquid medium flow channel.

3. The impeller-rotor support integrated member according to claim 2, characterized by The leading edge of the blade is configured as a rounded structure.

4. The impeller-rotor support integrated member according to claim 2 or 3, characterized by The leading edge of the blade is configured as a structure inclined to the impeller platform.

5. The impeller-rotor support integrated member according to claim 2, characterized by The impeller portion further includes an impeller cover; The impeller cover is formed on top of the blade, and the impeller cover connects all the blades in a circumferential direction.

6. The impeller-rotor support integrated member according to claim 1 or 2, characterized by The outer wall of the rotor support portion is concave in a radial direction thereof, forming a magnetic ring embedding groove for mounting a magnetic ring member.

7. The impeller-rotor support integrated member according to claim 1 or 2, characterized by The inner side of the rotor support portion is concave in an axial direction thereof, forming a bearing embedding groove for mounting a bearing member.

8. A rotor assembly characterized by, An impeller-rotor support integrated member according to any one of claims 1-7; Further comprising a magnetic ring member and a bearing member; The magnetic ring member is sleeved and embedded at the outer wall of the rotor support portion of the impeller-rotor support integrated member; The bearing member is embedded in the inner side of the rotor support portion of the impeller-rotor support integrated member.

9. The rotor assembly of claim 8, wherein, The outer wall of the rotor support portion is concave in a radial direction thereof, forming a magnetic ring embedding groove; The magnetic ring member is sleeved and embedded in the magnetic ring embedding groove of the impeller-rotor support integrated member; The inner side of the rotor support portion is concave in an axial direction thereof, forming a bearing embedding groove; The bearing member is embedded in the bearing embedding groove of the impeller-rotor support integrated member.

10. An electronic water pump characterized by comprising: A rotor assembly according to claim 8 or 9.

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