Motor front end protective cover

Abstract

The utility model discloses a motor front end protective cover which is installed at the front end of a stator body and used for protecting a coil and comprises a support installed at the front end of the stator body and a coil protective cover which is arranged on the periphery of the support and used for covering the exposed coil at the front end of the stator body inside. The support comprises a cover plate and a connecting pin arranged on the side portion of the cover plate, the connecting pin is connected with the stator body through a fastener, the coil protection cover is provided with a limiting structure abutting against the outer side of the cover plate, and the front end of the cover plate is further provided with a pressing plate used for limiting the coil protection cover to the front end of the stator body. The utility model has the advantages of better structural stability and longer service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field especially relates to a motor front end protection cover. BACKGROUND

[0002] Motor end cover is mainly used to fix or support stator and rotor important components. The outgoing line of traditional motor needs to pass through the rear end cover or front end cover of motor. In order to facilitate dismounting, a motor front end protection cover appears in the market, which is composed of coil protection cover and cover plate, the connecting foot of cover plate is connected with stator body through fastener, coil protection cover is connected with cover plate through card structure, that is, coil protection cover bottom has a bayonet, the connecting foot of cover plate is inserted into the bayonet, coil protection cover upper part also has a limiting card plate abutting on the bottom side of cover plate, so as to form the installation of coil protection cover. However, the cooperation structure of the card type is easy to break in actual use, and the stability is poor, therefore, the structure needs to be improved. SUMMARY

[0003] The utility model discloses a motor front end protection cover, and the utility model has the advantages of better structural stability and longer service life.

[0004] In order to achieve the above object, the utility model provides the following technical scheme: motor front end protection cover, install in the stator body front end for protecting coil, including installing the support of stator body front end and setting in the coil protection cover of the outer circle of support for covering the coil of stator body front end inside, the support includes cover plate and the connecting foot setting in the side of cover plate, the connecting foot is connected with stator body through fastener, the coil protection cover is equipped with the limiting structure of abutting tightly with the outside of cover plate, the front end of cover plate is equipped with the pressing plate for limiting coil protection cover in the front end of stator body.

[0005] Through the limiting structure, the coil protection cover is limited in the front end of stator body, which not only has simple structure, convenient dismounting, better structural stability and longer service life, but also will not appear the condition of easy breakage of the cooperation structure of the card type before.

[0006] The utility model further sets up, the limiting structure includes at least two limiting protrusions setting in the front end of coil protection cover, and the limiting protrusion is tightly arranged with the outside of cover plate.

[0007] Through the above technical scheme, this is the first setting mode of limiting structure, and the limiting protrusion is abutting tightly with the outside of cover plate, which not only has simple structure, convenient processing, saves the raw material of coil protection cover and can significantly reduce production cost.

[0008] The utility model further sets up, the cover board presents arc shape, the limit protruding includes semicircular cylinder protruding and circular arc protruding, the number of semicircular cylinder protruding is at least two and is close to the circular arc surface part of cover board outside, and the both ends of circular arc protruding are close to the both ends of cover board plane part respectively, and circular arc protruding and cover board combination form one shape of whole circle periphery.

[0009] By adopting above-mentioned technical scheme, limit structure and cover board multi-point contact limit, limit effect is better, and installation structure is more stable.

[0010] The utility model further sets up, the pressing plate is detachably installed in the front end of cover board through fastener.

[0011] By adopting above-mentioned technical scheme, the pressing plate is detachably installed on the cover board, and the connecting structure is simple and reliable, and the dismounting is very convenient.

[0012] The utility model further sets up, the pressing plate outside is equipped with the pressing protruding of the number and limit protruding close to corresponding limit protruding end portion.

[0013] By adopting above-mentioned technical scheme, can make the end surface of pressing plate and cover board and coil protection cover better, not only more beautiful, and each part stress uniformity, and structural stability is better.

[0014] The utility model further sets up, the coil protection cover height is not less than support height, and the coil protection cover front end opening inside is as limit structure and cover board periphery close.

[0015] By adopting above-mentioned technical scheme, this is the second setting of limit structure, although more material, but structure processing is simpler.

[0016] The utility model further sets up, still be equipped with at least two connecting ears on the pressing plate, be equipped with the mounting hole for fastener to pass on the connecting ear.

[0017] By adopting above-mentioned technical scheme, it is convenient to be connected with the shell of butt joint component.

[0018] The utility model further sets up, the coil protection cover is close to the plurality of bayonet of stator body one end, and the connecting foot end department extends outward and stretches into the bayonet.

[0019] By adopting above-mentioned technical scheme, the coil protection cover rear end is positioned, can promote the firmness of coil protection cover installation.

[0020] The utility model further sets up, be equipped with the positioning rib on the both sides of connecting foot, the inside of coil protection cover is equipped with the positioning guide groove of adapting with positioning rib.

[0021] By adopting the technical scheme, the coil protection cover is positioned and guided, which is convenient for installation and has a limiting effect, and further improves the stability of the installation structure. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 It is a structural schematic diagram of the whole motor;

[0023] Fig. 2 It is an exploded structural schematic diagram of the motor front end protection cover;

[0024] Fig. 3 It is a structural schematic diagram of the assembly of the bracket and the coil protection cover;

[0025] Fig. 4 It is a structural schematic diagram of the coil protection cover.

[0026] In the figure: 1, stator body; 2, coil; 3, bracket; 4, coil protection cover; 5, cover plate; 6, connecting foot; 7, pressing plate; 8, limiting protrusion; 9, semicircular protrusion; 10, circular arc protrusion; 11, pressing protrusion; 12, connecting lug; 13, mounting hole; 14, bayonet; 15, positioning rib; 16, positioning guide slot. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] Embodiment: The motor front end protection cover shown in the accompanying drawings is installed at the front end of the stator body 1 for protecting the coil 2, and comprises a bracket 3 installed at the front end of the stator body 1 and a coil protection cover 4 arranged at the outer periphery of the bracket 3 for covering the exposed coil 2 at the front end of the stator body 1 inside. The bracket 3 comprises a cover plate 5 and a connecting foot 6 arranged at the side of the cover plate 5. The connecting foot 6 is connected with the stator body 1 through a fastener (screw can be used). The coil protection cover 4 is provided with a limiting structure abutting against the outer side of the cover plate 5. The front end of the cover plate 5 is further provided with a pressing plate 7 for limiting the coil protection cover 4 at the front end of the stator body 1. The coil protection cover 4 is first limited transversely by the limiting structure, and then directly pressed and fixed by the pressing plate 7, so that the coil protection cover 4 is limited at the front end of the stator body 1. The structure is simple, convenient to disassemble and assemble, has better structural stability, longer service life, and will not be easily broken like the previous clamping structure. Figs. 1-4 ​

[0029] As shown in the accompanying drawings Figs. 1-4 , the limiting structure includes at least two limiting protrusions 8 arranged at the front end of the coil protection cover 4, and the limiting protrusions 8 are in an integral structure with the coil protection cover 4. The limiting protrusions 8 are arranged close to the outer side of the cover plate 5. This is the first setting mode of the limiting structure, and the limiting protrusions 8 are arranged close to the outer side of the cover plate 5. This not only has a simple structure and is easy to process, but also saves the raw materials of the coil protection cover 4, which can significantly reduce the production cost.

[0030] The limiting protrusions 8 can be cylindrical protrusions, semi-cylindrical protrusions 9, polygonal protrusions (triangular, quadrangular or hexagonal, etc.), or convex ribs, or a combination of two or more of the above structures.

[0031] As shown in the accompanying drawings Figs. 1-4 , as a specific embodiment, the following structure can be referred to: the cover plate 5 is in an arc shape, the limiting protrusions 8 include semi-cylindrical protrusions 9 and arc-shaped protrusions 10, the number of the semi-cylindrical protrusions 9 is at least two and they are arranged close to the arc surface of the outer side of the cover plate 5, the two ends of the arc-shaped protrusions 10 are arranged close to the two ends of the flat surface of the cover plate 5, and the arc-shaped protrusions 10 and the cover plate 5 combine to form a shape with a complete circle as the outer circumference. The limiting structure is in multi-point contact with the cover plate 5, and the limiting effect is better, and the installation structure is more stable.

[0032] The pressing plate 7 is detachably installed at the front end of the cover plate 5 through fasteners (screws can be used). The pressing plate 7 is installed on the cover plate 5 in a detachable structure, and the connection structure is simple and reliable, and the disassembly and assembly are very convenient.

[0033] As shown in the accompanying drawings Figs. 1-4 , the pressing plate 7 is provided with a number of pressing protrusions 11 corresponding to the limiting protrusions 8 and arranged close to the ends of the corresponding limiting protrusions 8, and the pressing protrusions 11 are in an integral structure with the pressing plate 7. This design can make the pressing plate 7 better fit the end surface of the cover plate 5 and the coil protection cover 4, which not only looks more beautiful, but also makes the stress of each part uniform and the structure more stable.

[0034] The second structure of the limiting structure is as follows: the height of the coil protection cover 4 is not less than the height of the support 3, and the inner side of the opening at the front end of the coil protection cover 4 is arranged close to the outer circumference of the cover plate 5 as the limiting structure. This is the second setting mode of the limiting structure, and although more materials are used, the structure is easier to process.

[0035] As shown in the accompanying drawings Figs. 1-4 , the pressing plate 7 is further provided with at least two connecting ears 12, and the connecting ears 12 are provided with mounting holes 13 for fasteners (screws can be used) to pass through. This design facilitates the connection of the shell with the butt joint component.

[0036] As attached Fig. 1 As shown, the coil protective cover 4 has multiple bayonets 14 at one end near the stator body 1, and the connecting leg 6 extends outward and into the bayonets 14. Positioning the rear end of the coil protective cover 4 can improve the firmness of the coil protective cover 4 installation.

[0037] As attached Fig. 1 As shown, the connecting foot 6 has positioning ribs 15 on both sides, and the inner side of the coil protective cover 4 has a positioning guide groove 16 that matches the positioning ribs 15. Positioning and guiding the coil protective cover 4 not only facilitates its installation and operation, but also has a limiting function, further improving the stability of its installation structure.

Claims

1. A motor front end protection cover, which is installed at the front end of a stator body (1) for protecting coils (2), comprising a bracket (3) installed at the front end of the stator body (1) and a coil protection cover (4) provided at the outer periphery of the bracket (3) for covering the coils (2) exposed at the front end of the stator body (1) inside, characterized in that: The bracket (3) comprises a cover plate (5) and connecting feet (6) arranged on the side of the cover plate (5), the connecting feet (6) are connected with the stator body (1) through fasteners, the coil protection cover (4) is provided with a limiting structure abutting against the outside of the cover plate (5), and the front end of the cover plate (5) is further provided with a pressing plate (7) for limiting the coil protection cover (4) at the front end of the stator body (1).

2. The motor front end protection cover of claim 1, wherein: The limiting structure comprises at least two limiting protrusions (8) arranged at the front end of the coil protection cover (4), and the limiting protrusions (8) are arranged in close contact with the outside of the cover plate (5).

3. The motor front end protection cover of claim 2, wherein: The cover plate (5) is in an arc shape, the limiting protrusions (8) comprise semicylindrical protrusions (9) and circular-arc protrusions (10), the number of the semicylindrical protrusions (9) is at least two, and the semicylindrical protrusions (9) abut against the circular-arc surface parts on the outside of the cover plate (5), the two ends of the circular-arc protrusions (10) abut against the two ends of the planar parts of the cover plate (5) respectively, and the circular-arc protrusions (10) and the cover plate (5) combine to form a shape with an integral circle as the outer periphery.

4. The motor front end protection cover of claim 3, wherein: The pressing plate (7) is detachably mounted at the front end of the cover plate (5) through fasteners.

5. The motor front end protection cover of claim 2, wherein: The outside of the pressing plate (7) is provided with pressing protrusions (11) corresponding to the limiting protrusions (8) and abutting against the ends of the corresponding limiting protrusions (8).

6. The motor front end protection cover of claim 1, wherein: The height of the coil protection cover (4) is not less than the height of the bracket (3), and the inside of the opening at the front end of the coil protection cover (4) abuts against the outer periphery of the cover plate (5) as the limiting structure.

7. The motor front end protection cover of claim 1, wherein: The pressing plate (7) is further provided with at least two connecting ears (12), and the connecting ears (12) are provided with mounting holes (13) for the fasteners to pass through.

8. The motor front end protection cover of claim 1, wherein: The end of the coil protection cover (4) close to the stator body (1) is provided with a plurality of clamping openings (14), and the end of the connecting feet (6) extends outward and extends into the clamping openings (14).

9. The motor front end protection cover of claim 1, wherein: The connecting feet (6) are provided with positioning ribs (15) on both sides, and the inside of the coil protection cover (4) is provided with positioning guide grooves (16) matched with the positioning ribs (15). The connecting feet (6) are provided with positioning ribs (15) on both sides, and the inside of the coil protection cover (4) is provided with positioning guide grooves (16) matched with the positioning ribs (15).

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