Motor shell with oil retainer

Abstract

The utility model relates to a motor casing with an oil retainer, which comprises a main casing, the oil retainer and an end plate, the end plate is fixed at one end of the main casing through a bolt, the oil retainer is clamped between the main casing and the end plate, the position of the oil retainer corresponds to the position of the end part of a winding, and at least part of the inner side of the oil retainer extends inwards to form an inner oil retaining part. According to the utility model, the oil retainer is arranged between the main shell and the end plate, so that the cooling liquid sprayed out of the stator iron core falls onto the winding under the blocking of the oil retainer and the action of gravity to cool the winding, and the oil retainer is simple in structure and convenient to install.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor structure technical field especially relates to a motor casing with oil baffle ring. BACKGROUND

[0002] The function of motor in drive system is very important, in the occasion that the volume of motor is strictly required, the motor with small volume, large output torque, small current and large power can occupy the huge advantage in the market. However, the stator winding, stator core and rotating shaft of motor can generate a large amount of heat when the motor is running, so an effective cooling method is needed to take away the heat, otherwise the internal components of motor can be burnt. The motor cooling method usually has natural cooling, air cooling, water cooling and oil cooling. In the prior art, the cooling structure of oil cooling is generally realized by setting cooling liquid flow channel on the stator core of motor, the structure can not only cool the stator core, but also cool the winding, but since the winding and the cooling liquid flow channel are usually arranged in parallel, so the oil injection ring structure is needed to be increased to guide the cooling liquid to the winding when the winding is cooled, the increase of oil injection ring makes the stator structure more complex, and also increases the cost. SUMMARY

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a motor casing with oil baffle ring, which is convenient to assemble and can make the cooling oil spray more accurately on the winding.

[0004] In order to realize the above utility model purpose, the utility model adopts the following technical scheme:

[0005] A motor casing with oil baffle ring, comprising a main shell, an oil baffle ring and an end plate, the end plate is fixed on one end of the main shell through bolts, the oil baffle ring is clamped between the main shell and the end plate, and the position of the oil baffle ring corresponds to the position of the winding end, and the inner side of the oil baffle ring at least partially extends inward to form an inner oil baffle part.

[0006] As a preferred scheme, the oil baffle ring comprises a support ring and an outer convex rib arranged on the outer side wall of the support ring, and one end of the inner wall of the main shell is also provided with a convex edge, and the outer convex rib is placed on the convex edge.

[0007] As a preferred scheme, the side of the end plate in contact with the main shell is also provided with a positioning convex ring, and the positioning convex ring is pressed on the outer convex rib.

[0008] As a preferred scheme, the support ring is also provided with a notch, and the length and position of the notch correspond to the length and position of the inner oil baffle part.

[0009] As a preferred scheme, the other end of the inner wall of the main shell is also provided with a baffle, and the circumferential position of the baffle is the same as the circumferential position of the inner oil baffle part.

[0010] Preferably, the baffle and the protruding edge are integrally formed with the main shell.

[0011] Preferably, the end plate is provided with an oil inlet pipe, and the main shell is further provided with a side wall oil passage, one end of the side wall oil passage being communicated with the oil inlet pipe, and the other end of the side wall oil passage forming a side wall oil inlet.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The utility model discloses a stator core cooling device, which comprises a main shell, an end plate and a stator core. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which form a part of the specification, illustrate the illustrative embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0015] Fig. 1 And Fig. 2 It is the explosion structure schematic view of the shell, end cover and oil baffle of two different angles of the utility model;

[0016] Fig. 3 It is the structure schematic view of the oil baffle of the utility model.

[0017] The figure sign is: 4, main shell;40, side wall oil inlet;44, protruding edge;43, side wall oil passage;410, baffle;41, oil baffle;411, support ring;412, notch;413, inner oil baffle part;414, outer protruding rib;5, end plate;50, oil inlet pipe;52, positioning convex ring. DETAILED DESCRIPTION

[0018] It should be noted that the following detailed description is illustrative only and is intended to provide further description of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs.

[0019] It should be noted that the terms used herein are merely for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should be understood that, when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0020] Further, in the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0021] Further, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more, unless otherwise explicitly limited.

[0022] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or the indirect contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical and inclined upward of the first feature above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical and inclined downward of the first feature below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0024] The utility model will be further described below in combination with the drawings and examples:

[0025] As Figs. 1 to 3As shown, a motor housing with an oil baffle ring, characterized in that: comprising a main shell 4, an oil baffle ring 41 and an end plate 5, the end plate 5 is fixed on one end of the main shell 4 through bolts, the oil baffle ring 41 is clamped between the main shell 4 and the end plate 5, and the position of the oil baffle ring 41 corresponds to the position of the winding end.

[0026] The inner side of the oil baffle ring 41 at least partially extends inward to form an inner oil baffle part 413. The oil baffle ring 41 comprises a support ring 411 and an outer convex rib 414 arranged on the outer side wall of the support ring 411. One end of the inner wall of the main shell 4 is also provided with a convex edge 44, and the outer convex rib 414 rests on the convex edge 44. The side of the end plate 5 in contact with the main shell 4 is also provided with a positioning convex ring 52, which presses against the outer convex rib 414.

[0027] During installation, the inner oil baffle part 413 of the oil baffle ring 41 is adjusted to the upper side, and the outer convex rib side of the oil baffle ring 41 is pressed against the shell convex edge. Finally, during the process of fixing the end plate and the shell, the positioning convex ring on the end plate will press the other side of the outer convex rib of the oil baffle ring 41. The entire assembly process is relatively simple, and the structure blocks the cooling liquid sprayed from both ends of the stator core, then falls to the winding under the action of gravity, cools the winding, and improves the cooling efficiency.

[0028] The utility model discloses a convex rib of adjusting main shell 4 stop place supports oil baffle ring 41 or increases oil baffle piece, and the shape of oil baffle ring and oil baffle piece is flexible, can realize the effective shelter and secondary oil separation of oil liquid spray to stator core end face, saves end oil guide component, realizes simple, and processing cost is low, and the spray effect is good.

[0029] The support ring 411 of the utility model is also provided with a notch 412, and the length and position of the notch 412 correspond to the length and position of the inner oil baffle part 413. The other end of the inner wall of the main shell 4 is also provided with a baffle plate 410, and the circumferential position of the baffle plate 410 is the same as the circumferential position of the inner oil baffle part 413. The baffle plate 410 and the convex edge 44 are integrally formed with the main shell 4. The setting of the notch can avoid the obstruction of the support ring 411 to the cooling oil, thereby avoiding the cooling oil from falling to other positions outside the winding.

[0030] The end plate 5 is provided with an oil inlet pipeline 50, and the main shell 4 is also provided with a side wall oil way 43, one end of the side wall oil way 43 communicates with the oil inlet pipeline 50, and the other end of the side wall oil way 43 forms a side wall oil inlet 40. The cooling oil in the stator core is introduced by the oil way on the shell, and is cooled and circulated outside the shell, ensuring that the motor still has good heat dissipation effect after long time work.

[0031] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] Although the embodiments of the present application have been shown and described above, it should be understood that the above-described embodiments are exemplary, and should not be construed as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application without departing from the principles and spirits of the present application. Any simple modification, equivalent change and modification made according to the technical essence of the present application to the above-described embodiments still belong to the scope of the technical scheme of the present application.

Claims

1. An electric machine housing with oil barrier, characterized in that: The oil retaining ring (41) is arranged between the main shell (4) and the end plate (5), and the position of the oil retaining ring (41) corresponds to the position of the winding end portion, and the inner side of the oil retaining ring (41) extends inward at least partially to form an inner oil retaining portion (413).

2. A motor housing with oil barrier according to claim 1, characterized in that The oil retaining ring (41) comprises a supporting ring (411) and an outer convex rib (414) arranged on the outer side wall of the supporting ring (411), and one end of the inner wall of the main shell (4) is further provided with a convex edge (44), and the outer convex rib (414) is arranged on the convex edge (44).

3. A motor housing with oil barrier according to claim 2, characterized in that The side of the end plate (5) in contact with the main shell (4) is further provided with a positioning convex ring (52), and the positioning convex ring (52) is pressed against the outer convex rib (414).

4. A motor housing with oil barrier according to claim 2, characterized in that The supporting ring (411) is further provided with a notch (412), and the length and position of the notch (412) correspond to the length and position of the inner oil retaining portion (413).

5. A motor housing with oil barrier according to claim 2, characterized in that The other end of the inner wall of the main shell (4) is further provided with a baffle (410), and the circumferential position of the baffle (410) is the same as the circumferential position of the inner oil retaining portion (413).

6. A motor housing with oil barrier according to claim 5, characterized in that The baffle (410) and the convex edge (44) are integrally formed with the main shell (4).

7. The motor housing with oil barrier according to claim 1, characterized in that, The end plate (5) is provided with an oil inlet pipeline (50), and the main shell (4) is further provided with a side wall oil way (43), one end of the side wall oil way (43) is in communication with the oil inlet pipeline (50), and the other end of the side wall oil way (43) forms a side wall oil inlet (40).

Images