Rotor, water pump motor and vehicle
By providing the first limiting sheet and the second limiting sheet clamping magnet on the rotor core, the problems of complex and high cost in the rotor production process in the prior art are solved, and the effect of simplifying the production process and reducing costs is achieved.
Patent Information
- Application Number
- CN202421210006.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The production process of existing rotors is complex and has high costs, and it is necessary to simplify the production process and reduce costs.
By providing the first limiting tab and the second limiting tab on the rotor core, the glueing process is avoided, the production process is simplified and the cost is reduced.
The production process is simplified, the production cost is reduced, and the magnet is clamped and fixed by the limiting sheet is improved, thereby improving production efficiency.
Smart Images
Figure CN222563581U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle manufacturing, in particular to a rotor, a water pump motor and a vehicle. Background Art
[0002] The rotor is the core rotating part of the water pump motor. Structurally, the magnet in the rotor and the mounting hole on the rotor core are clearance-matched, and glue needs to be injected between the mounting hole and the magnet. In addition, additional injection-molded baffles need to be installed at both ends of the magnet's axial direction for positioning.
[0003] The production process of this rotor is complex and the cost is relatively high.
[0004] Therefore, it is necessary to design a rotor, a water pump motor and a vehicle to simplify the production process of the rotor and ensure that the cost is relatively low. Utility Model Content
[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a rotor, a water pump motor and a vehicle. The rotor clamps and fixes the magnet by a first limit plate and a second limit plate, thereby avoiding processes such as gluing, simplifying the production process and reducing production costs.
[0006] According to a first aspect of the utility model, there is provided a rotor, comprising:
[0007] A rotor core, wherein a mounting hole extending along the axial direction of the rotor core is provided on a wall of the rotor core,
[0008] A magnet for mounting in the mounting hole,
[0009] A first limiting piece is fixedly arranged on an axial end surface of the rotor core,
[0010] A second limiting piece is fixedly arranged on the other axial end surface of the rotor core,
[0011] The first limiting plate and the second limiting plate both abut against the magnet and clamp the magnet in the axial direction of the rotor core.
[0012] In one embodiment, in the axial direction of the rotor core, two ends of the magnet respectively protrude from the rotor core.
[0013] In one embodiment, each end of the magnet protrudes from the rotor core by 0.3-0.5 mm.
[0014] In one embodiment, the first limiting plate and the second limiting plate are integrally connected to the rotor core and abut against the magnet by bending.
[0015] In one embodiment, the wall of the mounting hole includes circumferential wall segments arranged relatively to the circumference of the rotor core, the fixed end of the first limiting plate is located at at least one of the circumferential wall segments of the mounting hole, and the fixed end of the second limiting plate is located at at least one of the circumferential wall segments of the mounting hole.
[0016] In one embodiment, one of the first limiting plate and the second limiting plate for clamping the same magnet is located at one of the peripheral wall sections of the mounting hole and the other is located at another of the peripheral wall sections of the mounting hole.
[0017] In one embodiment, a plurality of mounting holes are provided on the rotor core and are spaced apart circumferentially of the rotor core. Two adjacent mounting holes form a group, and the first limiting plates corresponding to the mounting holes in a group are respectively located on different sides of the corresponding mounting holes, and the second limiting plates corresponding to the mounting holes in a group are respectively located on different sides of the corresponding mounting holes.
[0018] In one embodiment, the first limiting piece and the second limiting piece are constructed in a triangular shape with the top angles smoothly transitioned and connected.
[0019] According to a second aspect of the utility model, a water pump motor is provided, comprising the above-mentioned rotor.
[0020] According to a third aspect of the utility model, a vehicle is provided, comprising the above-mentioned water pump motor.
[0021] The above technical solution has the following beneficial effects: after the magnet is installed in the installation hole, the magnet is limited by clamping the first limiting plate and the second limiting plate, avoiding the gluing process in the prior art, simplifying the production process and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The disclosure of the present invention will become easier to understand with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings:
[0023] Figure 1 A three-dimensional diagram of a rotor according to an embodiment of the utility model is shown, wherein a first limiting piece is shown and the first limiting piece is in a non-pressed state;
[0024] Figure 2 A three-dimensional diagram of a rotor according to an embodiment of the utility model is shown, wherein the first limiting piece is in a press-fitting state;
[0025] Figure 3 A three-dimensional diagram of a rotor according to an embodiment of the utility model is shown, wherein the first limiting piece is in a press-fitted state;
[0026] Figure 4 A three-dimensional diagram of a rotor according to an embodiment of the utility model is shown, wherein a second limiting piece is shown and the second limiting piece is in an unpressed state.
[0027] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION
[0028] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.
[0029] An embodiment of the present invention provides a rotor. Figures 1 to 4 As shown, the rotor 1 includes a rotor core 11, a magnet 12, a first limiting plate 13 and a second limiting plate 15. The rotor core 11 itself can be a laminated type, and is formed by stacking a plurality of thin plates, which are made of high magnetic permeability materials, such as silicon steel sheets. A mounting hole 14 is provided on the wall of the rotor core 11. The mounting hole 14 is a through hole extending along the axial direction of the rotor core 11. The magnet 12 is used to be installed in the mounting hole 14. The first limiting plate 13 is fixedly arranged on one axial end face of the rotor core 11. The second limiting plate 15 is fixedly arranged on the other axial end face of the rotor core 11. The first limiting plate 13 and the second limiting plate 15 are both abutted against the magnet 12, and the first limiting plate 13 and the second limiting plate 15 clamp the magnet 12 at both axial ends of the rotor core 11 to play a role in limiting the magnet 12. That is to say, the first limiting plate 13 and the second limiting plate 15 for clamping are provided at both ends of the magnet 12 to limit the magnet 12. It can be seen that the magnet 12 is limited by the clamping of the first limiting plate 13 and the second limiting plate 15, which avoids the gluing process in the prior art, and correspondingly reduces the consumption of gluing materials and reduces the production cost.
[0030] In the axial direction of the rotor core 11, the two ends of the magnet 12 protrude from the rotor core 11 respectively. That is to say, the length of the magnet 12 is greater than the length of the mounting hole 14, so that it protrudes from the axial end surface of the rotor core 11 after the magnet 12 is installed. Preferably, the size of each end of the magnet 12 protruding from the rotor core 11 is 0.3-0.5 mm, for example, 0.3 mm, 0.4 mm or 0.5 mm. The two ends of the magnet 12 protrude from the rotor core 11 respectively to ensure that the first limit plate 13 and the second limit plate 15 can both abut against the magnet 12 to achieve the purpose of stable clamping. At the same time, the magnet 12 cannot protrude from the rotor core 11 too long to avoid the magnet 12 itself from being crushed when the first limit plate 13 and the second limit plate 15 are pressed. It can be seen that the above-mentioned arrangement can not only achieve the purpose of limiting the magnet 12 but also ensure the safety of the magnet 12 itself.
[0031] In one embodiment, the first stopper 13 and the second stopper 15 are integrally connected to the rotor core 11. That is to say, the rotor core 11 itself is a laminated sheet, and the first stopper 13 and the second stopper 15 are both part of the sheet. When forming the mounting hole 14, the material is not completely eliminated corresponding to the mounting hole 14, but a part is left. It can be understood that before installing the magnet 12, the first stopper 13 and the second stopper 15 are as follows. Figure 1 and 4 As shown in FIG. 1 , the avoidance position needs to be maintained so as not to affect the installation of the magnet 12. After the magnet 12 is installed in the installation hole 14, the first limiting piece 13 and the second limiting piece 15 are bent by pressing and bending. Figure 2 Until the first limiting plate 13 and the second limiting plate 15 respectively abut against the two ends of the magnet 12 and play a clamping role on the magnet 12, as shown in FIG. Figure 3 It can be seen that in the present application, the first limiting piece 13 and the second limiting piece 15 are clamped at both ends to limit the magnet 12 .
[0032] In one embodiment, the wall of the mounting hole 14 includes a circumferential wall section 141 and a radial wall section 142. The circumferential wall section 141 is divided into two sections and is arranged in a circumferential direction of the rotor core 11. The radial wall section 142 is also divided into two sections and is arranged in a radial direction of the rotor core 11. In the circumferential direction of the mounting hole 14 itself, both ends of each circumferential wall section 141 are connected to the radial wall section 142, and both ends of each radial wall section 142 are connected to the circumferential wall section 141 to form the wall of the mounting hole 14. The fixed end of the first limiting piece 13 is located at at least one of the circumferential wall sections 141 of the mounting hole 14. The fixed end of the second limiting piece 15 is located at at least one of the circumferential wall sections 141 of the mounting hole 14. In other words, the first limiting piece 13 and the second limiting piece 15 are located on the outer side of the circumferential direction of the rotor core 11. This arrangement can optimize the structure, especially helps to ensure the space for the press-fitting operation of the first limiting piece 13 and the second limiting piece 15, and facilitates the smooth progress of the press-fitting operation. In addition, the shape of the mounting hole 14 matches the shape of the magnet 12. After the magnet 12 is installed, the outer wall of the magnet 12 at least simultaneously abuts against the radial wall section 142. It can be understood that the fixed ends of the first limiting piece 13 and the second limiting piece 15 are not limited to the above-mentioned settings, but can be located at any section of the mounting hole 14, as long as they do not interfere with the magnet 12 when installing the magnet 12 and can clamp the magnet 12 after bending.
[0033] In order to simplify the structure, each magnet 12 is provided with a first limiting plate 13 and a second limiting plate 15 at both ends of the axial direction of the rotor core 11. However, the two first limiting plates 13 and the second limiting plates 15 are not located at the same peripheral wall section 141 of the mounting hole 14. Instead, one of the first limiting plates 13 and the second limiting plates 15 used to clamp the same magnet 12 is located at one peripheral wall section 141 of the mounting hole 14, and the other is located at another peripheral wall section 141 of the mounting hole 14. In the process of clamping the magnet 12, a first limiting plate 13 and a second limiting plate 15 are relatively bent toward the magnet 12 to clamp the magnet 12. This arrangement can ensure the uniformity of the force on the magnet 12, ensure the position stability of the magnet 12, and also simplify the number of the first limiting plates 13 and the second limiting plates 15, thereby reducing the production cost.
[0034] A plurality of mounting holes 14 are provided on the rotor core 11. These mounting holes 14 are distributed in intervals in the circumferential direction of the rotor core 11. A magnet 12 is provided in each mounting hole 14 in a matching manner. Two adjacent mounting holes 14 form a group, and the first limiting plates 13 corresponding to the mounting holes 14 in a group are respectively located on different sides of the corresponding mounting holes 14, and at the same time, the second limiting plates 15 corresponding to the mounting holes 14 in a group are respectively located on different sides of the corresponding mounting holes 14. For example, two mounting holes 14 in a group have two first limiting plates 13 in a one-to-one correspondence, and if one first limiting plate 13 is located on the clockwise side of the corresponding mounting hole 14, then the other first limiting plate 13 will be located on the counterclockwise side of the corresponding mounting hole 14. This arrangement causes the first limiting plate 13 corresponding to one mounting hole 14 to be arranged adjacent to the first limiting plate 13 corresponding to another mounting hole 14 adjacent to it. The second limiting plate 15 is thus arranged adjacent to the two first limiting plates 13 on the axial end face of the rotor core 11, so as to be respectively used for press-fitting magnets 12 adjacent to each other at the clamping positions. This arrangement can optimize the structure, especially in the press-fitting operation, the two adjacent first limiting plates 13 are press-fitted at the same time to save press-fitting time and improve efficiency. It can be understood that the arrangement of the second limiting plate 15 is similar to that of the first limiting plate 13, and on the other axial end face of the rotor core 11, the two second limiting plates 15 are also arranged adjacent to each other, so as to be respectively used for press-fitting magnets 12 adjacent to each other at the clamping positions.
[0035] The first limiting piece 13 and the second limiting piece 15 are constructed in a triangular shape with a smooth transition connection at the top angle. After press-fitting, the first limiting piece 13 and the second limiting piece 15 clamp the magnet 12. This arrangement makes the bending line of the first limiting piece 13 and the second limiting piece 15 at the bending point relatively long, which can effectively avoid the first limiting piece 13 and the second limiting piece 15 from rebounding after press-fitting, and can ensure a stable clamping effect.
[0036] The present application also relates to a water pump motor. The water pump motor includes the above-mentioned rotor. In addition, the present application also relates to a vehicle. The vehicle includes the above-mentioned water pump motor.
[0037] In the present application, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance.
[0038] The above are only the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principles of the present invention, several other modifications can be made, which should also be considered as the protection scope of the present invention.
Claims
1. A rotor, characterized in that: include: A rotor core, wherein a mounting hole extending along the axial direction of the rotor core is provided on a wall of the rotor core, A magnet for mounting in the mounting hole, A first limiting piece is fixedly arranged on an axial end surface of the rotor core, A second limiting piece is fixedly arranged on the other axial end surface of the rotor core, The first limiting plate and the second limiting plate both abut against the magnet and clamp the magnet in the axial direction of the rotor core.
2. The rotor according to claim 1, characterized in that In the axial direction of the rotor core, two ends of the magnet protrude from the rotor core respectively.
3. The rotor according to claim 2, characterized in that Each end of the magnet protrudes from the rotor core by 0.3-0.5 mm.
4. A rotor according to any one of claims 1 to 3, characterized in that The first limiting plate and the second limiting plate are both integrally connected to the rotor core and abut against the magnet by bending.
5. The rotor according to any one of claims 1 to 3, characterized in that The wall of the mounting hole includes circumferential wall sections arranged relatively to the circumference of the rotor core, the fixed end of the first limiting plate is located at at least one of the circumferential wall sections of the mounting hole, and the fixed end of the second limiting plate is located at at least one of the circumferential wall sections of the mounting hole.
6. The rotor according to claim 5, characterized in that One of the first limiting plate and the second limiting plate for clamping the same magnet is located at one of the peripheral wall sections of the mounting hole, and the other is located at the other peripheral wall section of the mounting hole.
7. The rotor according to claim 6, characterized in that A plurality of mounting holes are arranged on the rotor core and are spaced apart in the circumferential direction of the rotor core. Two adjacent mounting holes form a group. The first limiting plates corresponding to the mounting holes in a group are respectively located on different sides of the corresponding mounting holes, and the second limiting plates corresponding to the mounting holes in a group are respectively located on different sides of the corresponding mounting holes.
8. A rotor according to any one of claims 1 to 3, characterized in that The first limiting piece and the second limiting piece are constructed in a triangular shape with the top angles smoothly transitioned and connected.
9. A water pump motor, characterized in that: Comprising a rotor according to any one of claims 1 to 8.
10. A vehicle, characterized in that: Comprising the water pump motor according to claim 9.