Motor end cap structure

Abstract

The utility model discloses a motor end cover structure, including the cover, the circumference of the cover outward is provided with a plurality of first through -hole, the cover is fixedly connected with motor main body through the first through -hole, be provided with rotating device on the cover, rotating device is fixed on the end face of cover inboard and with external electric connection. The rotation of the present application is arranged in the cover inboard of end cover, so need not install the dust cover on the outside of end cover, also need not carry out oil seal processing in the connecting position of dust cover and end cover, only need waterproof treatment in the fixed position of rotating device and cover, guarantee waterproof sealing effect while, save the installation component, also reduce the processing craft, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of end caps, and more specifically to a motor end cap structure. Background Technology

[0002] The end caps of an electric motor are used to seal the gap between the stator and rotor, preventing foreign objects from entering and lubricating oil from leaking. End caps are typically made of cast iron or aluminum alloy to meet strength and heat dissipation requirements.

[0003] Existing motor end caps, such as Figure 1 As shown, the method includes a cover and a rotating device. Previously, the rotating device was set on the outside of the motor cover, so a dust cover needed to be installed on the outside. The center hole of the dust cover needed to be sealed with a good oil seal, and the entire exterior of the dust cover needed to be waterproofed. The entire sealing and waterproofing measures were very labor-intensive and costly. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a motor end cover structure, including a cover body. Several first through holes are provided outwardly on the circumference of the cover body. The cover body is fixedly connected to the motor body through the first through holes. A rotating device is provided on the cover body. The rotating device is fixed on the inner end face of the cover body and electrically connected to the outside, so that the rotating device can rotate when energized.

[0005] Furthermore, an installation step protrudes outward on the inner end face of the cover, and a groove is formed between the installation step and the edge of the cover. The rotating device is installed on the installation step.

[0006] Furthermore, the rotating device includes a connecting ring, which is fixedly connected to the mounting step. A stator ring and a rotor core are disposed inside the connecting ring. The stator ring surrounds the outside of the rotor core, and clamping members are disposed on both end faces of the stator ring.

[0007] Furthermore, a number of tooth crowns extend inward along the inner circumference of the stator ring. The tooth crowns are used to wind the coil. Stator tooth poles are provided at the ends of the tooth crowns. A number of protrusions are provided on the outer side of the rotor core. The protrusions are arranged opposite to the stator tooth poles. A rotating shaft connected to the end cover passes through the middle of the rotor core.

[0008] Furthermore, the clamping member includes a ring portion and a toothed portion, which respectively clamp the end faces of the stator ring and the tooth crown. A connecting portion is also provided outside the ring portion, which is fixedly connected to the connecting ring.

[0009] Furthermore, the mounting step is provided with a through groove, and the connecting ring is provided with a second through hole, through which the connecting ring is fixedly connected to the cover.

[0010] Furthermore, the through groove is U-shaped.

[0011] Furthermore, reinforcing ribs are provided on the end face of the cover away from the rotating device.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The resolver in this application is installed inside the end cap, so there is no need to install a dust cover on the outside of the end cap, nor is it necessary to perform oil sealing treatment at the connection between the dust cover and the end cap. Waterproofing treatment is only required at the fixed position between the rotating device and the end cap. This ensures waterproof sealing while saving installation components, reducing processing steps, and improving production efficiency.

[0014] Additional aspects and advantages of this invention will be set forth in the description which follows, and some will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the product structure related to the prior art of this application;

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the rotating device of this utility model;

[0019] Figure 4 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the cover of this utility model.

[0021] The reference numerals and names in the figure are as follows:

[0022] Cover 100, dust cover 300, first through hole 110, rotating device 200, mounting step 120, groove 130, connecting ring 210, stator ring 220, rotor core 230, clamping part 240, tooth crown 221, stator tooth pole 222, protrusion 231, ring part 241, tooth part 242, connecting part 243, through groove 121, second through hole 211, reinforcing rib 140. Detailed Implementation

[0023] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] The present invention will now be described in more detail. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them.

[0025] In the description of this utility model, it should be noted that directional terms such as "front, back, up, down, left, right," "horizontal, vertical, horizontal," and "top, bottom," indicating directions or positional relationships, are generally based on the directions or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself. In the description of this utility model, it should be noted that the use of terms such as "first" and "second" to define components is merely for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0027] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0028] The preferred embodiment of this utility model will now be further described with reference to the accompanying drawings. The motor end cover structure includes a cover body 100. A plurality of first through holes 110 are provided outward on the circumferential surface of the cover body 100. The cover body 100 is fixedly connected to the motor body through the first through holes 110. A rotating device 200 is provided on the cover body 100. The rotating device 200 is fixed on the end face of the inner side of the cover body 100 and is electrically connected to the outside.

[0029] Compared with the prior art, the resolver of this application is installed inside the cover 100 of the end cover. Therefore, it is not necessary to install a dust cover 300 on the outside of the end cover, nor is it necessary to perform oil sealing treatment at the connection between the dust cover 300 and the end cover. Waterproofing treatment is only required at the fixed position between the rotating device 200 and the cover 100. While ensuring the waterproof sealing effect, it saves installation parts, reduces processing technology, and improves production efficiency.

[0030] Furthermore, based on the above embodiment, an installation step 120 protrudes outward from the inner end face of the cover 100, and a groove 130 is formed between the installation step 120 and the edge of the cover 100. The rotating device 200 is mounted on the installation step 120, so that the rotating device 200 can be further away from the outer side of the cover 100, thereby avoiding contact with the outer side. In addition, by providing the groove 130 between the rotating device 200 and the edge of the cover 100, the influence of external debris entering the cover 100 on the rotation of the rotating device 200 can also be reduced.

[0031] Further, based on the above embodiments, the rotating device 200 includes a connecting ring 210, which is fixedly connected to the mounting step 120. A stator ring 220 and a rotor core 230 are disposed within the connecting ring 210. The stator ring 220 surrounds the outside of the rotor core 230. Clamping members 240 are disposed on both end faces of the stator ring 220, which are used to clamp and fix the stator ring 220 within the connecting ring 210.

[0032] Further, based on the above embodiment, a plurality of tooth crowns 221 are provided along the inner circumference of the stator ring 220. The tooth crowns 221 are used for winding the coil (not shown in the figure). Stator tooth poles 222 are provided at the ends of the tooth crowns 221. A plurality of protrusions 231 are provided on the outer side of the rotor core 230. The protrusions 231 are arranged opposite to the stator tooth poles 222. A rotating shaft (not shown in the figure) connected to the end cover passes through the middle of the rotor core 230. When the coil is energized, the rotor core 230 and the rotating shaft are driven to rotate under the action of the inductive signal.

[0033] Further, based on the above embodiments, the clamping member 240 includes a ring portion 241 and a toothed portion 242, which clamp the end faces of the stator ring 220 and the tooth crown 221 respectively. A connecting portion 243 is also provided outside the ring portion 241, which is fixedly connected to the connecting ring 210, thereby making the entire clamping member 240 fixedly connected to the connecting ring 210.

[0034] Furthermore, based on the above embodiments, a through groove 121 is provided on the mounting step 120, and a second through hole 211 is provided on the connecting ring 210. The connecting ring 210 is fixedly connected to the cover 100 through the second through hole 211.

[0035] Furthermore, based on the above embodiments, the through groove 121 is U-shaped, and the second through hole 211 can be deflected in an arc within the through groove 121. In this way, when the connecting ring 210 is fixedly connected to the cover 100 through the second through hole 211, the relative position between the connecting ring 210 and the cover 100 can be adjusted at any time.

[0036] Furthermore, based on the above embodiments, a reinforcing rib 140 is provided on the end face of the cover 100 away from the rotating device 200, and the reinforcing rib 140 is used to increase the strength of the end face of the cover 100.

[0037] The details of the above exemplary embodiments are provided, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all changes falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. An electric machine end cap structure, characterized by, Includes a cover (100), with a plurality of first through holes (110) provided outward on the circumferential surface of the cover (100). The cover (100) is fixedly connected to the motor body through the first through holes (110). A rotating device (200) is provided on the cover (100). The rotating device (200) is fixed on the end face of the inner side of the cover (100) and electrically connected to the outside.

2. The motor end turn structure of claim 1, wherein An installation step (120) protrudes outward on the inner end face of the cover (100), and a groove (130) is formed between the installation step (120) and the edge of the cover (100). The rotating device (200) is installed on the installation step (120).

3. The motor end turn structure of claim 2, wherein The rotating device (200) includes a connecting ring (210) which is fixedly connected to the mounting step (120). A stator ring (220) and a rotor core (230) are provided inside the connecting ring (210). The stator ring (220) surrounds the outside of the rotor core (230). Clamping members (240) are provided on both end faces of the stator ring (220).

4. The motor end turn structure of claim 3, wherein A plurality of tooth crowns (221) are provided along the inner circumference of the stator ring (220). The tooth crowns (221) are used for winding coils. Stator tooth poles (222) are provided at the ends of the tooth crowns (221). A protrusion (231) is provided on the outer side of the rotor core (230). The protrusion is arranged opposite to the stator tooth poles (222). A rotating shaft connected to the end cover passes through the middle of the rotor core (230).

5. The motor end turn structure of claim 4, wherein The clamping member (240) includes a ring portion (241) and a toothed portion (242), which clamp the stator ring (220) and the toothed crown (221) on both sides of the end face, respectively. A connecting portion (243) is also provided outside the ring portion (241), which is fixedly connected to the connecting ring (210).

6. The motor end turn structure of claim 5, wherein The mounting step (120) is provided with a through groove (121), and a second through hole (211) is provided on the connecting ring (210). The connecting ring (210) is fixedly connected to the cover (100) through the second through hole (211).

7. The motor end turn structure of claim 6, wherein The through groove (121) is U-shaped.

8. The motor end turn structure of claim 1, wherein A reinforcing rib (140) is provided on the end face of the cover (100) away from the rotating device (200).

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