Novel automobile electronic water pump outer rotor structure

Abstract

According to the novel automobile electronic water pump outer rotor structure, the outer rotor shell and the outer rotor impeller are arranged to be of a detachable split type structure, the outer rotor shell and the outer rotor impeller are connected through cooperation between the impeller connecting end 7 and the impeller connecting groove, and due to the design, replacement and maintenance of parts are facilitated; and the flexibility of the whole structure is enhanced. When a part of parts are damaged or abraded, a user can only replace the damaged part without replacing the whole water pump, so that the maintenance cost is greatly reduced, and the maintenance time is greatly shortened. The magnetic steel supporting part on the outer rotor shell can support the magnetic steel in the inner cavity and ensure that the magnetic steel keeps a stable posture during high-speed rotation, and performance reduction or potential safety hazards caused by position deviation of the magnetic steel are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile electronic water pumps, in particular to a novel automobile electronic water pump outer rotor structure. Background Art

[0002] In the existing outer rotor structure of automotive electronic water pumps, the impeller and the housing are usually an integrated structure. Due to the tight connection between the impeller and the housing, the disassembly and maintenance of the entire water pump becomes very difficult. In addition, after long-term use, the outer rotor of the integrated structure may cause the gap between the impeller and the housing to increase due to wear and aging, thereby reducing the working efficiency and reliability of the water pump. The impeller and housing of the split structure need to ensure the connection strength and structural stability between the two to avoid the impeller from loosening on the housing and independent rotation. Summary of the invention

[0003] In view of this, the utility model provides a novel automotive electronic water pump outer rotor structure.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A novel automotive electronic water pump outer rotor structure includes an outer rotor housing and an outer rotor impeller, wherein the outer rotor housing and the outer rotor impeller are detachably connected, an inner cavity is formed in the outer rotor housing, a plurality of magnetic steels are arranged in the inner cavity, the outer rotor housing has a magnetic steel support portion for supporting the magnetic steel and an impeller connecting groove for connecting the outer rotor impeller, the outer rotor impeller is provided with an impeller connecting end corresponding to the impeller connecting groove, and the impeller connecting end extends into the impeller connecting groove and is connected to the outer rotor housing.

[0006] Preferably, the impeller connecting groove is opened at the top of the outer rotor shell, the inner wall of the impeller connecting groove limits the impeller connecting end extending into the impeller connecting groove, and at least one side of the outer rotor shell close to the impeller connecting groove protrudes to form a longitudinal limiting end, and the longitudinal limiting end is connected to the outer rotor impeller limit.

[0007] Preferably, an impeller limiting groove is provided on the outer rotor impeller, and the impeller limiting groove is provided at the upper part of the impeller connecting end, and the longitudinal limiting end is bent toward the inside of the impeller limiting groove, and the longitudinal limiting end is against the bottom groove wall of the impeller limiting groove, and the longitudinal limiting end limits the longitudinal position of the outer rotor impeller on the outer rotor casing.

[0008] Preferably, a plurality of magnets are arranged in the inner cavity and the magnets are arranged at intervals. The magnet support parts are formed by bending the bottom of the outer rotor shell toward the center of the inner cavity. The magnet support parts are arranged corresponding to the positions and quantities of the magnets. A magnet isolation part is arranged between adjacent magnet support parts. The magnet isolation part extends into the gaps between adjacent magnets to isolate the magnets.

[0009] Preferably, the magnetic steel isolating portion and the outer rotor housing are an integrally formed structure, and the magnetic steel isolating portion is formed by bending the portion of the outer rotor housing located between the magnetic steel supporting portions toward a position between adjacent magnetic steels.

[0010] Preferably, the magnetic steel isolation part and the outer rotor housing are of a split structure, and a corresponding separation distance is formed between adjacent magnetic steel support parts and adjacent magnetic steels. A screw is arranged in the separation distance, and the screw has a nut section and a screw section. The magnetic steel isolation part is arranged on the screw section, and the screw section extends into the separation distance to isolate adjacent magnetic steels, and the nut section presses the adjacent magnetic steel support part.

[0011] Preferably, the impeller connecting groove is a snap groove formed on the outer rotor shell, the impeller connecting end is a snap end protruding from the outer rotor impeller, and the impeller connecting end extends into the impeller connecting groove and is snap-connected with the outer rotor shell.

[0012] The beneficial effect of the utility model is that by setting the outer rotor housing and the outer rotor impeller as a detachable split structure, and connecting the outer rotor housing and the outer rotor impeller by the cooperation between the impeller connecting end 7 and the impeller connecting groove, this design not only facilitates the replacement and maintenance of parts, but also enhances the flexibility of the overall structure. When some of the parts are damaged or worn, the user can only replace the damaged part without replacing the entire water pump, thereby greatly reducing the maintenance cost and time. The magnetic steel support part on the outer rotor housing can support the magnetic steel in the inner cavity and ensure that it maintains a stable posture during high-speed rotation, preventing performance degradation or safety hazards caused by the displacement of the magnetic steel position. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Attached Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Attached Figure 2 For attachment Figure 1 Schematic diagram of structural decomposition;

[0016] Attached Figure 3 It is a structural schematic diagram of another embodiment;

[0017] Attached Figure 4 For attachment Figure 3 Schematic diagram of structural decomposition. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model will be further described below in conjunction with the accompanying drawings of the specification.

[0020] The utility model provides the following technical solutions:

[0021] As attached Figure 1-4 As shown, the utility model discloses a novel automotive electronic water pump outer rotor structure, including an outer rotor housing 1 and an outer rotor impeller 2, wherein the outer rotor housing 1 and the outer rotor impeller 2 are detachably connected, an inner cavity 3 is formed in the outer rotor housing 1, a magnetic steel 4 is arranged in the inner cavity 3, the outer rotor housing 1 has a magnetic steel support portion 5 for supporting the magnetic steel 4 and an impeller connecting groove 6 for connecting the outer rotor impeller 2, the outer rotor impeller 2 is provided with an impeller connecting end 7 corresponding to the impeller connecting groove 6, and the impeller connecting end 7 extends into the impeller connecting groove 6 and is connected to the outer rotor housing 1. Specifically, in the present design, by setting the outer rotor housing 1 and the outer rotor impeller 2 as a detachable split structure, and connecting the outer rotor housing 1 and the outer rotor impeller 2 by the cooperation between the impeller connecting end 7 and the impeller connecting groove 6, this design not only facilitates the replacement and maintenance of parts, but also enhances the flexibility of the overall structure. When a part of the parts is damaged or worn, the user can only replace the damaged part without replacing the entire water pump, thereby greatly reducing the maintenance cost and time. The magnetic steel support part 5 on the outer rotor housing 1 can support the magnetic steel 4 in the inner cavity 3 and ensure that it maintains a stable posture during high-speed rotation, thereby preventing performance degradation or safety hazards caused by position displacement of the magnetic steel 4.

[0022] Furthermore, the impeller connection groove 6 is provided at the top of the outer rotor housing 1, and the inner wall of the impeller connection groove 6 limits the impeller connection end 7 extending into the impeller connection groove 6, and at least one side of the outer rotor housing 1 close to the impeller connection groove 6 protrudes to form a longitudinal limit end 8, and the longitudinal limit end 8 is limitedly connected with the outer rotor impeller 2. Specifically, in this embodiment, the groove wall of the impeller connection groove 6 can limit the impeller connection end 7, thereby preventing the outer rotor impeller 2 from rotating in the outer rotor housing 1, and ensuring the synchronization of the outer rotor impeller 2 and the outer rotor housing 1 during operation. The design of the longitudinal limit end 8 further enhances this synchronization, so that the outer rotor impeller 2 can remain stable during rotation and is not prone to displacement or shaking.

[0023] Further, an impeller limiting groove 9 is provided on the outer rotor impeller 2, and the impeller limiting groove 9 is provided on the upper part of the impeller connecting end 7, and the longitudinal limiting end 8 is bent toward the inside of the impeller limiting groove 9, and the longitudinal limiting end 8 abuts against the bottom groove wall of the impeller limiting groove 9, and the longitudinal limiting end 8 limits the longitudinal position of the outer rotor impeller 2 on the outer rotor housing 1. Specifically, in this embodiment, the setting of the impeller limiting groove 9 can cooperate with the longitudinal limiting end 8 to further ensure the stable installation of the outer rotor impeller 2 on the outer rotor housing 1. When the impeller connecting end 7 extends into the impeller connecting groove 6 and is connected to the outer rotor housing 1, the longitudinal limiting end 8 will bend and abut against the bottom groove wall of the impeller limiting groove 9. This design not only enhances the stability of the connection, but also makes the installation process easier. At the same time, this structure also allows the outer rotor impeller 2 to have a certain fine-tuning space in the outer rotor housing 1 to adapt to slight changes under different working conditions, thereby improving the adaptability and reliability of the water pump.

[0024] Furthermore, the magnetic steels 4 are arranged at intervals, the magnetic steel support parts 5 are formed by bending the bottom of the outer rotor housing 1 toward the center of the inner cavity 3, the magnetic steel support parts 5 are arranged corresponding to the position and quantity of the magnetic steels 4, and magnetic steel isolation parts 10 are arranged between adjacent magnetic steel support parts 5, and the magnetic steel isolation parts 10 extend into the gaps between adjacent magnetic steels 4 to isolate the magnetic steels 4. Specifically, in this embodiment, by providing the magnetic steel support parts 5 and the magnetic steel isolation parts 10, the stable arrangement of the magnetic steels 4 in the inner cavity 3 is ensured, and direct contact and mutual interference between the magnetic steels 4 are avoided, thereby improving the magnetic properties and service life of the magnetic steels 4. At the same time, the provision of the magnetic steel isolation parts 10 also enhances the heat dissipation performance between the magnetic steels 4, helps to reduce the temperature of the magnetic steels 4 during operation, and improves the stability and reliability of the overall structure.

[0025] Furthermore, the magnetic steel isolating portion 10 and the outer rotor housing 1 are integrally formed structures, and the magnetic steel isolating portion 10 is formed by bending the portion of the outer rotor housing 1 between the magnetic steel supporting portions 5 toward the position between the adjacent magnetic steels 4. Specifically, in this embodiment, the magnetic steel isolating portion 10, which is an integral structure with the outer rotor housing 1, can be formed at one time during the manufacturing process, which not only simplifies the production process and improves production efficiency, but also ensures the connection strength and stability between the magnetic steel isolating portion 10 and the outer rotor housing 1. Since the magnetic steel isolating portion 10 extends into the gap between adjacent magnetic steels 4, they can effectively isolate the adjacent magnetic steels 4 and prevent the magnetic steels 4 from interfering with or colliding with each other when rotating at high speed, thereby ensuring the stability and reliability of the automotive electronic water pump.

[0026] Reference Figure 4 In another embodiment, the magnetic steel isolating part 10 and the outer rotor housing 1 are of a split structure, and a corresponding separation interval 11 is formed between the adjacent magnetic steel supporting parts 5 and the adjacent magnetic steel 4. A screw 12 is arranged in the separation interval 11, and the screw 12 has a nut section 13 and a screw section 14. The magnetic steel isolating part 10 is arranged on the screw section 14, and the screw section 14 extends into the separation interval 11 to isolate the adjacent magnetic steel 4, and the nut section 13 presses the adjacent magnetic steel supporting part 5. Specifically, in this embodiment, the magnetic steel isolating part 10 and the outer rotor housing 1 adopt a split structure, and the separation interval 11 formed between the adjacent magnetic steel supporting parts 5 and the adjacent magnetic steel 4 provides space for the installation of the screw 12. The magnetic steel isolating part 10 is arranged on the screw section 14, and the screw section 14 extends into the separation interval 11. By rotating the nut section 13, the screw section 14 is threadedly connected with the impeller, thereby isolating the adjacent magnetic steel 4. At the same time, the nut segment 13 presses the adjacent magnetic steel support portion 5, ensuring a stable connection between the magnetic steel isolation portion 10 and the outer rotor housing 1. This split-structure magnetic steel isolation portion 10 design not only facilitates installation and disassembly, but also effectively solves the problem of the change in the spacing between the magnetic steels 4 caused by the high-temperature expansion of the magnetic steels 4.

[0027] Reference Figure 3 In another embodiment, the impeller connection groove 6 is a buckle groove formed on the outer rotor housing 1, and the impeller connection end 7 is a buckle end protruding from the outer rotor impeller 2. The impeller connection end 7 extends into the impeller connection groove 6 and is buckled with the outer rotor housing 1. Specifically, in this embodiment, the outer rotor housing 1 and the outer rotor impeller 2 are fixed by a buckle connection, so as to facilitate the assembly between the outer rotor housing 1 and the outer rotor impeller 2, improve the assembly efficiency and do not affect the structural strength.

[0028] In other embodiments, the screw 12 can also serve to fix the outer rotor housing 1 and the outer rotor impeller 2. When the screw serves to fix, the screw is the impeller limiting structure 13 arranged on the outer rotor housing 1, and the screw 12 passes through the outer rotor housing 1 and is threadedly connected to the outer rotor impeller 2 to achieve fixation.

[0029] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A novel automotive electronic water pump outer rotor structure, comprising an outer rotor housing and an outer rotor impeller, characterized in that: The outer rotor shell is detachably connected to the outer rotor impeller, an inner cavity is formed in the outer rotor shell, a plurality of magnets are arranged in the inner cavity, the outer rotor shell has a magnet support portion for supporting the magnets and an impeller connecting groove for connecting the outer rotor impeller, the outer rotor impeller is provided with an impeller connecting end corresponding to the impeller connecting groove, and the impeller connecting end extends into the impeller connecting groove and is connected to the outer rotor shell.

2. The novel automotive electronic water pump outer rotor structure according to claim 1 is characterized in that: The impeller connecting groove is opened at the top of the outer rotor shell, and the inner wall of the impeller connecting groove limits the impeller connecting end extending into the impeller connecting groove. At least one side of the outer rotor shell close to the impeller connecting groove protrudes to form a longitudinal limiting end, and the longitudinal limiting end is connected to the outer rotor impeller limit.

3. The novel automotive electronic water pump outer rotor structure according to claim 2 is characterized in that: An impeller limiting groove is arranged on the outer rotor impeller, and the impeller limiting groove is arranged at the upper part of the impeller connecting end. The longitudinal limiting end is bent toward the inside of the impeller limiting groove, and the longitudinal limiting end is against the bottom groove wall of the impeller limiting groove. The longitudinal limiting end limits the longitudinal position of the outer rotor impeller on the outer rotor shell.

4. The novel automotive electronic water pump outer rotor structure according to claim 1 is characterized in that: The magnets are arranged at intervals, and the magnet support parts are formed by bending the bottom of the outer rotor shell toward the center of the inner cavity. The magnet support parts are arranged corresponding to the positions and quantities of the magnets. A magnet isolation part is arranged between adjacent magnet support parts, and the magnet isolation part extends into the gaps between adjacent magnets to isolate the magnets.

5. The novel automotive electronic water pump outer rotor structure according to claim 4 is characterized in that: The magnetic steel isolating part and the outer rotor shell are an integrally formed structure, and the magnetic steel isolating part is formed by bending the part of the outer rotor shell between the magnetic steel supporting parts toward the position between the adjacent magnetic steels.

6. The novel automotive electronic water pump outer rotor structure according to claim 4 is characterized in that: The magnetic steel isolation part and the outer rotor shell are split structures, and a corresponding separation distance is formed between the adjacent magnetic steel support parts and the adjacent magnetic steels. A screw is arranged in the separation distance, and the screw has a nut section and a screw section. The magnetic steel isolation part is arranged on the screw section, and the screw section extends into the separation distance to isolate the adjacent magnetic steels, and the nut section presses the adjacent magnetic steel support part.

7. The novel automotive electronic water pump outer rotor structure according to claim 1 is characterized in that: The impeller connecting groove is a snap groove formed on the outer rotor shell, the impeller connecting end is a snap end protruding from the outer rotor impeller, and the impeller connecting end extends into the impeller connecting groove and is snap-connected with the outer rotor shell.

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