Motor stator framework
By designing a splicable motor stator skeleton, using the combined structure of incoming line hanging posts, outgoing line hanging posts and passing line hanging posts, the problem of enameled line crossing through bridges when the block stator is circled is solved, and the motor is improved Quality and safety.
Patent Information
- Application Number
- CN202421038953.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-14
AI Technical Summary
During the rounding process of block stator, the cross-bridge line of the enameled wire is easily removed from the hanging post, resulting in motor quality and safety problems.
Design a motor stator skeleton, including multiple block skeletons that can be spliced into an annular shape, by setting inlet and outgoing line hangers, outgoing line hangers and passing line hangers on the outer arc plate of the barrier line, and on the outer arc plate There are embed grooves and cable slots on it to ensure the length and stability of the bridge line and prevent loosening.
It improves the winding reliability of the enameled wire, prevents the cross-bridge wire from falling out, and enhances the quality and safety of the motor.
Smart Images
Figure CN222262289U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motors, and in particular to a motor stator frame. Background Art
[0002] With the increasing requirements for energy conservation and environmental protection, motors as key power sources must also meet the standards of high efficiency and low energy consumption. The advantages of brushless DC motors, such as low noise, long life, no spark interference, and convenient centralized control, fully meet these requirements. With the increasing maturity of its speed regulation technology and its increasing cost-effectiveness, its structural manufacturing process must also be improved accordingly. The brushless motor consists of two parts: the stator and the rotor. The stator contains several coils, through which DC current is passed. The rotor contains several permanent magnets, and the polarities of the permanent magnets are arranged alternately. When the stator coil is passed with current, a rotating magnetic field is generated on the stator, and the permanent magnets on the rotor rotate under the action of the magnetic field. In this way, electrical energy is converted into mechanical energy, realizing the operation of the motor. The block stator has a significant improvement in the power density of the motor. At present, the manufacturing of the block stator motor still has the disadvantages of low efficiency, high cost, and complex process. After the segmented stator is rounded, the path of the enameled wire becomes shorter, causing the bridge wire to loosen. As a result, the enameled wire bridge wire is easy to fall off the wire hanging column during the rounding process. The fallen bridge wire is overlapped on the stator core, which can easily cause a series of quality problems such as poor motor withstand voltage or leakage, affecting the quality and safety of the motor. Utility Model Content
[0003] The technical problem to be solved by the utility model is that when the segmented stator is rounded, the bridge wire of the enameled wire is caused to fall off from the wire hanging column, affecting the quality and safety of the motor. In order to overcome the defects of the above prior art, the utility model provides a motor stator frame.
[0004] The utility model provides a motor stator frame, comprising a plurality of block frames that can be spliced into a ring structure, the block frame comprising a winding part, a wire-blocking inner arc plate and a wire-blocking outer arc plate, the winding part is integrally connected between the wire-blocking inner arc plate and the wire-blocking outer arc plate to form a winding groove for winding enameled wire, the wire-blocking outer arc plate is provided with an inlet wire hanging column, an outlet wire hanging column and a passing wire hanging column, the inlet wire hanging column is located on the inlet side of the winding groove, the outlet wire hanging column is located on the outlet side of the winding groove, the passing wire hanging column is used to hang a bridge wire of the enameled wire, the passing wire hanging column is arranged on a side close to the outlet wire hanging column, the wire-blocking outer arc plate is provided with an embedding groove on a side close to the inlet wire hanging column, the embedding groove is used to embed the passing wire hanging column on the adjacent block frame, so that the bridge wire of the enameled wire can be tensioned when a plurality of the block frames are spliced into a ring.
[0005] Compared with the prior art, the motor stator frame of the present application has the following advantages: the incoming wire hanging post and the outgoing wire hanging post are respectively used for hanging the incoming wire and the outgoing wire in the winding groove, thereby improving the reliability of setting the lead-out wire; at the same time, by arranging the passing wire hanging post on the outer arc plate of the wire blocking line and close to the outgoing wire hanging post, the length of the bridge wire is limited by the passing wire hanging post and the outgoing wire hanging post; by arranging the embedding groove on the outer arc plate of the wire blocking line and close to the incoming wire hanging post, the embedding groove is used for embedding the adjacent passing wire hanging post, thereby limiting the length of the bridge wire by the adjacent passing wire hanging post and the incoming wire hanging post, thereby avoiding the loosening of the bridge wire and preventing the bridge wire from escaping from the hanging post, so that the bridge wire of the enameled wire is tensioned when a plurality of the segmented frames are spliced into a ring, thereby improving the winding reliability of the enameled wire on the frame and improving the quality and safety of the motor.
[0006] In a possible implementation manner, at least one wire clamping groove is provided on the outer side walls of the incoming wire hanging pole and the outgoing wire hanging pole, and the wire clamping groove is used for clamping the bridge wire.
[0007] Compared with the prior art, the above technical solution can ensure that the bridge wire is stably arranged on the outer side walls of the incoming wire hanging pole and the outgoing wire hanging pole.
[0008] In a possible implementation manner, the outer side walls of the incoming line hanging pole and the outgoing line hanging pole are both provided with a line-clamping step, and the line-clamping step is used for clamping the cross-phase line segment of the bridge line.
[0009] Compared with the prior art, the above technical solution can improve the hanging stability of the cross-phase line segment of the bridge line.
[0010] In a possible implementation manner, a wire clamping block is further provided on the outgoing wire hanging pole, and the wire clamping block is used for hanging the cross-phase line segment of the bridge line.
[0011] Compared with the prior art, the above technical solution can further improve the hanging stability of the cross-phase line segment of the bridge line.
[0012] In a possible implementation manner, a positioning column is provided on the wire blocking outer arc plate, and the positioning column is arranged between the incoming wire hanging column and the outgoing wire hanging column.
[0013] Compared with the prior art, the above technical solution can position the injection molded parts and facilitate the stator assembly.
[0014] In a possible implementation, a wire burying groove is provided on the wire blocking outer arc plate, and the wire burying groove is located on the wire inlet side of the winding groove and extends to the groove bottom of the winding groove.
[0015] Compared with the prior art, the above technical solution can bury the incoming wires during winding, prevent the incoming wires from being worn, and avoid leakage or short circuit of the stator.
[0016] In a possible implementation manner, a wire blocking step is provided at the bottom of the winding groove, and the wire blocking step is arranged close to the buried wire groove.
[0017] Compared with the prior art, the above technical solution can ensure the neat arrangement of the first wire and improve the winding slot full rate.
[0018] In a possible implementation manner, an annular wire arrangement groove is provided on the outer peripheral wall of the winding portion, and the wire arrangement groove is located at the bottom of the winding groove.
[0019] Compared with the prior art, the above technical solution can arrange the windings neatly and improve the winding slot full rate.
[0020] In a possible implementation manner, a wire arrangement step is provided on the wire blocking inner arc plate.
[0021] Compared with the prior art, the above technical solution can arrange the windings neatly and improve the winding slot full rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of the stator skeleton structure of the first embodiment of the utility model;
[0023] Figure 2 for Figure 1 A partial enlarged view of
[0024] Figure 3 This is a schematic diagram of the structure of the stator frame used in the first embodiment of the utility model;
[0025] Figure 4 for Figure 3 A partial enlarged view of
[0026] Figure 5 This is a schematic diagram of the block skeleton structure of the second embodiment of the utility model;
[0027] Description of reference numerals:
[0028] 1. Block skeleton; 11. Wire winding part; 111. Wire arrangement slot; 12. Wire blocking inner arc plate; 121. Wire arrangement step; 13. Wire blocking outer arc plate; 131. Embedded slot; 132. Buried wire slot; 2. Wire winding slot; 21. Wire blocking step; 3. Inlet wire hanging column; 4. Outlet wire hanging column; 5. Wire passing wire hanging column; 6. Wire clamping slot; 7. Wire clamping step; 8. Wire clamping block; 9. Positioning column. DETAILED DESCRIPTION
[0029] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.
[0030] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.
[0031] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0032] After the segmented stator is rounded, the path of the enameled wire becomes shorter, causing the bridge wire to loosen. As a result, the enameled wire bridge wire is easy to fall off the wire hanging column during the rounding process. The fallen bridge wire is overlapped on the stator core, which can easily cause a series of quality problems such as poor motor withstand voltage or leakage, affecting the quality and safety of the motor.
[0033] Embodiment 1
[0034] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0035] See also Figures 1 to 4The present application discloses a motor stator frame, comprising a plurality of block frames 1 that can be spliced into a ring structure, the block frame 1 comprising a winding portion 11, a wire blocking inner arc plate 12 and a wire blocking outer arc plate 13, the winding portion 11 is integrally connected between the wire blocking inner arc plate 12 and the wire blocking outer arc plate 13 and forms a winding groove 2 for winding enameled wire, the wire blocking outer arc plate 13 is provided with an inlet wire hanging column 3, an outlet wire hanging column 4 and a wire passing wire hanging column 5, the inlet wire hanging column 3 is located at the winding The inlet side of the slot 2, the outlet hanging post 4 is located on the outlet side of the winding slot 2, the wire passing hanging post 5 is used to hang the bridge wire of the enameled wire, the wire passing hanging post 5 is arranged close to the side of the outlet hanging post 4, the side of the wire blocking outer arc plate 13 close to the inlet hanging post 3 is provided with an embedding groove 131, the embedding groove 131 is used to embed the wire passing hanging post 5 on the adjacent block skeleton 1, so that when multiple block skeletons 1 are spliced into a ring shape, the bridge wire of the enameled wire is tensioned. The center line of the rotation axis of two adjacent block skeletons 1 is located on the wire passing hanging post 5 and the embedding groove 131.
[0036] As can be known from the above, the incoming wire hanging pole 3 and the outgoing wire hanging pole 4 are respectively used for hanging the incoming wire and the outgoing wire in the winding groove 2, thereby improving the reliability of the setting of the lead-out wire; at the same time, by arranging the passing wire hanging pole 5 on the outer arc plate 13 and close to the outgoing wire hanging pole 4, the length of the bridge wire is limited by the passing wire hanging pole 5 and the outgoing wire hanging pole 4, and by arranging the embedding groove 131 on the outer arc plate 13 and close to the incoming wire hanging pole 3, the embedding groove 131 is used for embedding the adjacent passing wire hanging pole 5, so that the length of the bridge wire is limited by the adjacent passing wire hanging pole 5 and the incoming wire hanging pole 3, thereby avoiding the loosening of the bridge wire and preventing the bridge wire from escaping from the hanging pole, so that the bridge wire of the enameled wire is tensioned when the multiple segmented skeletons 1 are spliced into a ring, thereby improving the winding reliability of the enameled wire on the skeleton and improving the quality and safety of the motor.
[0037] Continue to see Figure 3 and Figure 4 In this embodiment, two wire clamping grooves 6 are provided on the outer walls of the incoming wire hanging column 3 and the outgoing wire hanging column 4. The two wire clamping grooves 6 are arranged at intervals along the axial direction. The wire clamping grooves 6 are used for clamping the bridge wire, thereby enabling the bridge wire to be stably arranged on the outer walls of the incoming wire hanging column 3 and the outgoing wire hanging column 4.
[0038] Continue to see Figure 3 and Figure 4 In this embodiment, the outer walls of the incoming line hanging column 3 and the outgoing line hanging column 4 are both provided with a wire clamping step 7, and the wire clamping step 7 is used for clamping the cross-phase line segment of the bridge line. The outgoing line hanging column 4 is also provided with a wire clamping block 8, and the wire clamping block 8 is used for hanging the cross-phase line segment of the bridge line, thereby improving the hanging stability of the cross-phase line segment of the bridge line.
[0039] Continue to see Figure 1 In this embodiment, a positioning column 9 is provided on the outer arc plate 13 of the wire blocking wire, and the positioning column 9 is arranged between the incoming wire hanging column 3 and the outgoing wire hanging column 4, thereby positioning the injection molded part and facilitating the assembly of the stator.
[0040] Continue to see Figure 1 and Figure 2 In this embodiment, a wire burying groove 132 is provided on the wire blocking outer arc plate 13. The wire burying groove 132 is located on the incoming wire side of the winding groove 2 and extends to the bottom of the winding groove 2. In this way, the incoming wire can be buried during winding to prevent the incoming wire from being worn and avoid leakage or short circuit of the stator.
[0041] Continue to see Figure 1 and Figure 2 In this embodiment, a wire blocking step 21 is provided at the bottom of the winding groove 2, and the wire blocking step 21 is arranged close to the buried wire groove 132, thereby ensuring the neat arrangement of the first wire and improving the full rate of the winding groove 2.
[0042] Embodiment 2
[0043] See also Figure 5 The difference between this embodiment and the first embodiment is that an annular wire arrangement groove 111 is provided on the outer peripheral wall of the winding portion 11, and the wire arrangement groove 111 is located at the bottom of the winding groove 2, and a wire arrangement step 121 is provided on the wire blocking inner arc plate 12, thereby enabling the windings to be arranged neatly and improving the full rate of the winding groove 2.
[0044] In the description of the embodiments of the present application, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.
[0045] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0046] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.
Claims
1. A motor stator frame, characterized in that: The invention comprises a plurality of block frames (1) which can be spliced into a ring structure, wherein the block frames (1) comprise a winding portion (11), a wire blocking inner arc plate (12) and a wire blocking outer arc plate (13), wherein the winding portion (11) is integrally connected between the wire blocking inner arc plate (12) and the wire blocking outer arc plate (13) to form a winding groove (2) for winding enameled wire, and the wire blocking outer arc plate (13) is provided with an inlet wire hanging column (3), an outlet wire hanging column (4) and a through wire hanging column (5), wherein the inlet wire hanging column (3) is located on the inlet side of the winding groove (2). The outlet wire hanging column (4) is located at the outlet side of the winding groove (2), the over-wire hanging column (5) is used to hang the bridge wire of the enameled wire, the over-wire hanging column (5) is arranged close to the side of the outlet wire hanging column (4), and the side of the wire blocking outer arc plate (13) close to the in-wire hanging column (3) is provided with an embedding groove (131), and the embedding groove (131) is used to embed the over-wire hanging column (5) on the adjacent block skeleton (1), so as to tension the bridge wire of the enameled wire when a plurality of the block skeletons (1) are spliced into a ring.
2. The motor stator frame according to claim 1, characterized in that: At least one wire clamping groove (6) is provided on the outer side walls of the incoming wire hanging column (3) and the outgoing wire hanging column (4), and the wire clamping groove (6) is used for clamping the bridge wire.
3. The motor stator frame according to claim 1, characterized in that: The outer side walls of the incoming line hanging pole (3) and the outgoing line hanging pole (4) are both provided with a line-locking step (7), and the line-locking step (7) is used for locking the cross-phase line segment of the bridge line.
4. The motor stator frame according to claim 3, characterized in that: The outgoing line hanging column (4) is also provided with a line clamping block (8), and the line clamping block (8) is used to hang the cross-phase line segment of the bridge line.
5. The motor stator frame according to claim 1, characterized in that: The outer arc plate (13) for blocking the wire is provided with a positioning column (9), and the positioning column (9) is arranged between the incoming wire hanging column (3) and the outgoing wire hanging column (4).
6. The motor stator frame according to claim 1, characterized in that: The wire blocking outer arc plate (13) is provided with a wire burying groove (132), and the wire burying groove (132) is located on the wire inlet side of the winding groove (2) and extends to the groove bottom of the winding groove (2).
7. The motor stator frame according to claim 6, characterized in that: A wire blocking step (21) is provided at the bottom of the winding groove (2), and the wire blocking step (21) is arranged close to the buried wire groove (132).
8. The motor stator frame according to claim 1, characterized in that: An annular wire arrangement groove (111) is provided on the outer peripheral wall of the wire winding portion (11), and the wire arrangement groove (111) is located at the bottom of the wire winding groove (2).
9. The motor stator frame according to claim 1, characterized in that: The wire-blocking inner arc plate (12) is provided with a wire-arranging step (121).