Electrophoretic paint motor front end cover

Abstract

The utility model relates to the technical field of motor end covers, in particular to an electrophoretic paint motor front end cover which comprises an end cover body, the end cover body is provided with a through hole, the through hole penetrates through the end cover body along the axis of the end cover body, a motor rotating shaft penetrates through the through hole, the outer surface of the end cover body is coated with an anti-corrosion layer, and the anti-corrosion layer is made of an electrophoretic paint material. The anti-corrosion layer is made of electrophoretic paint and sprayed on the outer surface of the end cover body in an electrophoresis mode so as to prevent external air from making direct contact with the end cover body, the thickness of the anti-corrosion layer on the outer side of the end cover body can be uniform, the thickness of the anti-corrosion layer can be reduced, the end cover body can be matched with a rotating shaft and other parts conveniently, and the service life of the end cover is prolonged. The electrophoretic paint is not easy to fall off, the reliability of the anti-corrosion layer is improved, the service life of the motor is prolonged, and the operation stability of the motor is improved.

Description

Technical Field

[0001] This application relates to the technical field of motor end caps, and in particular to an electrophoretic paint motor front end cap. Background Technology

[0002] A motor end cover is a cover on the motor housing, generally divided into a front cover and a rear cover, used to fix and support the motor shaft. The material of the motor end cover is generally metal, including aluminum, cast aluminum, and cold-stamped steel, and different materials are usually selected according to different types of motors.

[0003] The front cover of the motor is an important component of the motor. After long-term use, the front cover is easily corroded by the outside air. In order to improve the service life of the front cover, an anti-corrosion layer is usually sprayed on the outer circumference of the front cover after the front cover is processed, so as to prevent the outside air from directly contacting the front cover.

[0004] However, due to the spraying process, the paint is quite thick, and there are variations in the thickness of the paint layer in different areas. This affects the subsequent installation of the motor front cover and the motor housing, as well as the stability of the shaft rotation, thus affecting the normal use of the motor. Utility Model Content

[0005] In order to reduce the thickness of the anti-corrosion layer and ensure the stability of motor operation, this application provides an electrophoretic paint motor front end cover.

[0006] The technical solution provided in this application for an electrophoretic paint motor front end cover is as follows:

[0007] An electrophoretic paint motor front end cover includes an end cover body with a through hole that extends through the end cover body along its axis and is used for the motor shaft to pass through. The outer surface of the end cover body is covered with an anti-corrosion layer made of electrophoretic paint.

[0008] By adopting the above technical solution, the anti-corrosion layer is made of electrophoretic paint, which is sprayed onto the outer surface of the end cover body by electrophoresis to prevent the outside air from directly contacting the end cover body. This makes the thickness of the anti-corrosion layer on the outside of the end cover body more uniform, which helps to reduce the thickness of the anti-corrosion layer. This facilitates the fit between the end cover body and components such as the shaft. In addition, the electrophoretic paint is not easy to fall off, which improves the reliability of the anti-corrosion layer and improves the service life and operational stability of the motor.

[0009] Preferably, the end cap body has a groove on the side near the motor housing, and the axis of the groove coincides with the axis of the through hole.

[0010] By adopting the above technical solution and setting the groove, the weight of the end cap body can be reduced, making it easier to handle and install the end cap body.

[0011] Preferably, the bottom of the groove is connected to a plurality of reinforcing ribs, which are circumferentially spaced around the axis of the through hole, and extend from the inner wall of the groove to the outer wall of the groove.

[0012] By adopting the above technical solution, the bottom of the groove is connected with several reinforcing ribs, which helps to improve the structural strength of the end cap body, reduce the possibility of deformation or damage to the end cap body due to long-term operation or external impact, and improve the service life of the end cap body.

[0013] Preferably, the outer periphery of the end cap body near the motor housing is provided with an annular groove, the annular groove is used to insert one end of the motor housing, the groove wall is used to fit against the inner wall of the motor housing, and the groove wall at the end of the annular groove away from the bottom of the groove is provided with a first rounded corner, the first rounded corner is used to abut against the inner wall of the motor housing.

[0014] By adopting the above technical solution, an annular groove is provided for embedding the motor housing. The groove wall fits against the inner wall of the motor housing, which improves the stability of the connection between the end cover body and the motor housing, reduces the possibility of relative movement between the end cover body and the motor housing during operation, and improves the reliability of the motor.

[0015] Preferably, the device further includes a positioning rod and a first reset member. A plurality of connecting seats are connected to the outer periphery of the end cover body. These connecting seats are spaced apart around the axis of the end cover body. Each connecting seat has a connecting hole for a fixing bolt to pass through and be threaded into the motor housing. The connecting seat also has a positioning hole that communicates with an annular groove. The positioning rod is coaxially and slidably embedded in the positioning hole. One end of the positioning rod near the annular groove is used to embed into a positioning groove in the motor housing. The first reset member connects the positioning rod and the end cover body, and the first reset member causes the positioning rod to tend to extend into the annular groove.

[0016] By adopting the above technical solution, when the positioning hole is aligned with the positioning groove of the motor housing, the positioning rod is embedded in the positioning groove under the action of the elastic force of the first reset member, so as to achieve the initial positioning of the end cover body and the motor housing, and make the connecting hole and the corresponding fixing hole of the motor housing aligned, which facilitates the subsequent fixed connection of the end cover body and the motor housing.

[0017] Preferably, the number of positioning holes is the same as the number of connecting holes and they correspond one-to-one, and the number of positioning rods and the first reset component is the same as the number of positioning holes and they correspond one-to-one.

[0018] By adopting the above technical solution, multiple positioning rods are embedded in the positioning groove of the motor housing, reducing the possibility of relative movement between the end cover body and the motor housing in the direction perpendicular to the axis of the end cover body, and improving the stability of the connection between the end cover body and the motor housing.

[0019] Preferably, the end of the positioning hole away from the annular groove passes through the connecting seat. When the end of the positioning rod near the annular groove is embedded in the positioning hole, the end of the positioning rod away from the annular groove extends out of the positioning hole. When the positioning rod is embedded in the positioning groove of the motor housing, the end of the positioning rod away from the annular groove is flush with the side surface of the connecting seat away from the annular groove. The end of the positioning rod away from the annular groove is used to abut against the head of the fixing bolt embedded in the connecting hole.

[0020] By adopting the above technical solution, the positioning hole penetrates the connecting seat. When the positioning rod abuts against the motor housing, the positioning rod overcomes the elastic force of the first reset member and extends out of the positioning hole. The rotating end cover body makes the positioning hole and the positioning groove aligned. Under the action of the elastic force of the first reset member, the positioning rod is embedded in the positioning groove. The other end of the positioning rod is embedded in the positioning hole, which makes it easy for installers to judge whether the connecting hole and the fixing hole of the motor housing are aligned, thus improving the convenience of motor installation.

[0021] Preferably, a plurality of heat dissipation strips are connected to the outer periphery of the end cover body, and the plurality of heat dissipation strips are distributed circumferentially around the axis of the end cover body.

[0022] By adopting the above technical solution, several heat dissipation strips are provided on the outer periphery of the end cover body, which increases the contact area between the end cover body and the outside air, improves the efficiency of heat dissipation from the end cover body during motor operation, and improves the stability of motor operation.

[0023] Preferably, it further includes an extension plate and a thermal expansion block, wherein the extension plate is slidably connected to the end cap body, the thermal expansion block is connected to the end cap body, and the thermal expansion block is used to push the extension plate to slide.

[0024] By adopting the above technical solution, when the internal temperature of the motor is too high, the thermal expansion block expands due to heat, pushing the extension plate to slide, further increasing the contact area between the end cover body and the outside air, and improving the heat dissipation efficiency of the end cover body.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The anti-corrosion layer is made of electrophoretic paint, which is sprayed onto the outer surface of the end cover body by electrophoresis to prevent the outside air from directly contacting the end cover body. This makes the thickness of the anti-corrosion layer on the outside of the end cover body more uniform, which helps to reduce the thickness of the anti-corrosion layer. This facilitates the fit between the end cover body and components such as the shaft. In addition, the electrophoretic paint is not easy to peel off, which improves the reliability of the anti-corrosion layer and improves the service life and operational stability of the motor.

[0027] 2. An annular groove is provided for embedding the motor housing. The groove wall fits against the inner wall of the motor housing, which improves the stability of the connection between the end cover body and the motor housing, reduces the possibility of relative movement between the end cover body and the motor housing during operation, and improves the reliability of the motor.

[0028] 3. When the positioning hole is aligned with the positioning groove of the motor housing, the positioning rod is inserted into the positioning groove under the action of the elastic force of the first reset member, realizing the initial positioning of the end cover body and the motor housing, so that the connecting hole and the corresponding fixing hole of the motor housing are aligned, which facilitates the subsequent fixed connection of the end cover body and the motor housing. Attached Figure Description

[0029] Figure 1 This is a cross-sectional view of the front cover of the electrophoretic paint motor.

[0030] Figure 2 This is a schematic diagram of the structure of the front cover of the electrophoretic paint motor.

[0031] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0032] Figure 4 This is a schematic diagram of the front cover of the electrophoretic paint motor from another perspective.

[0033] Figure 5 yes Figure 1 Enlarged view of point B in the middle.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. End cap body; 11. Through hole; 12. Groove; 13. Reinforcing rib; 14. Annular groove; 15. First rounded corner; 16. Connecting seat; 161. Connecting hole; 162. Positioning hole; 17. Heat sink; 18. Mounting groove; 19. First chamfer; 110. Second chamfer; 111. Embedded groove; 112. Sliding groove;

[0036] 2. Anti-corrosion layer;

[0037] 3. Positioning assembly; 31. Positioning rod; 311. Second fillet; 312. Engraving ring; 32. First reset component;

[0038] 4. Heat dissipation components; 41. Extension plate; 42. Thermal expansion block. Detailed Implementation

[0039] The present application will be further described in detail below with reference to the accompanying drawings.

[0040] Reference Figure 1This application discloses an electrophoretic paint motor front end cover, including an end cover body 1. The end cover body 1 has a coaxial through hole 11, which extends through the end cover body 1 along its axis and is used for the motor shaft to pass through. A mounting groove 18 is coaxially provided on the wall of the through hole 11 near the motor housing. The mounting groove 18 is used for bearing insertion, and a first chamfer 19 is provided on the groove wall of the mounting groove 18 near the motor housing for bearing abutment. A groove 12 is provided on the end cover body 1 near the first chamfer 19, with the axis of the groove 12 coinciding with the axis of the through hole 11. A second chamfer 110 is provided on the inner wall of the groove 12 near the bottom of the groove. The outer periphery of the end cover body 1 is covered with an anti-corrosion layer 2 made of electrophoretic paint.

[0041] Reference Figure 2 A plurality of reinforcing ribs 13 are fixedly connected to the bottom of the groove 12, and the reinforcing ribs 13 are distributed circumferentially around the axis of the end cap body 1. In this embodiment, there are eight reinforcing ribs 13, which are evenly distributed circumferentially around the axis of the end cap body 1. The reinforcing ribs 13 extend from the inner wall of the groove 12 to the outer wall of the groove 12.

[0042] Reference Figure 1 and Figure 3 The end cap body 1 has an annular groove 14 on its outer periphery near the first chamfer 19. The annular groove 14 is used to insert one end of the motor housing. The groove wall of the annular groove 14 is used to fit against the inner wall of the motor housing. The groove wall of the annular groove 14 away from the bottom of the groove is provided with a first rounded corner 15. The first rounded corner 15 is used to abut against the inner wall of the motor housing.

[0043] Reference Figure 1 and Figure 4 A plurality of connecting seats 16 are fixedly connected to the outer periphery of the end cap body 1, and the plurality of connecting seats 16 are distributed circumferentially around the axis of the end cap body 1. In this embodiment, there are three connecting seats 16, and the three connecting seats 16 are evenly distributed circumferentially around the axis of the end cap body 1.

[0044] Reference Figure 1 and Figure 3An electrophoretic paint motor front end cover also includes a positioning component 3. The surface of the connecting seat 16 near the annular groove 14 is flush with the bottom of the annular groove 14. The connecting seat 16 has a connecting hole 161 that passes through the connecting seat 16 along the axis of the end cover body 1, allowing a fixing bolt to pass through and be threaded into the motor housing. The connecting seat 16 also has positioning holes 162, the number of which corresponds to the number of connecting holes 161. The positioning holes 162 are located on the side of the connecting holes 161 near the axis of the end cover body 1, and their axes are parallel to the axes of the connecting holes 161. Both ends of the positioning holes 162 pass through the connecting seat 16 and communicate with the annular groove 14. The positioning component 3 includes a positioning rod 31 and a first reset member 32, the number of which corresponds to the number of positioning holes 162. The positioning rod 31 is coaxially slidably embedded in the positioning hole 162. The end of the positioning rod 31 near the annular groove 14 is used to embed into the positioning groove of the motor housing. The outer periphery of the end of the positioning rod 31 near the annular groove 14 is provided with a second rounded corner 311, which is used to abut against the groove wall of the positioning groove of the motor housing. The end of the positioning rod 31 away from the annular groove 14 is used to abut against the head of the fixing bolt embedded in the connecting hole 161. The positioning hole 162 is coaxially provided with a groove 111 on the hole wall. A retaining ring 312 is coaxially fixedly connected to the outer wall of the positioning rod 31. The retaining ring 312 is slidably embedded in the groove 111, and the sliding direction of the retaining ring 312 is parallel to the sliding direction of the positioning rod 31. In this embodiment, when the end of the positioning rod 31 near the annular groove 14 is embedded in the positioning hole 162, and the end of the positioning rod 31 away from the annular groove 14 extends out of the positioning hole 162, when the insert ring 312 abuts against the side wall of the insert groove 111 near the annular groove 14, the end of the positioning rod 31 away from the annular groove 14 is flush with the side surface of the connecting seat 16 away from the annular groove 14. The first reset member 32 is connected between the insert ring 312 and the connecting seat 16, and the first reset member 32 makes the positioning rod 31 tend to embed into the annular groove 14. In this embodiment, the first reset member 32 is a spring, the first reset member 32 is sleeved on the outer periphery of the positioning rod 31, one end of the first reset member 32 is connected to the side surface of the insert ring 312 away from the annular groove 14, and the other end of the first reset member 32 is connected to the side wall of the insert groove 111 away from the annular groove 14.

[0045] Reference Figure 1 and Figure 4 A plurality of heat dissipation strips 17 are fixedly connected to the outer periphery of the end cap body 1. The heat dissipation strips 17 extend from the outer wall of the end cap body 1 to the end of the end cap away from the annular groove 14. The plurality of heat dissipation strips 17 are distributed circumferentially around the axis of the end cap body 1. In this embodiment, there are seventeen heat dissipation strips 17, which are divided into three groups. A connecting seat 16 is provided between two adjacent groups of heat dissipation strips 17. The plurality of heat dissipation strips 17 in the same group are evenly distributed circumferentially around the axis of the end cap body 1.

[0046] Reference Figure 1 and Figure 5 An electrophoretic paint motor front end cover also includes a heat dissipation assembly 4. The heat dissipation assembly 4 includes an extension plate 41 and thermal expansion blocks 42. The number of extension plates 41 and thermal expansion blocks 42 is the same as the number of heat dissipation strips 17 and corresponds one-to-one. A groove 112 is provided on the side of the heat dissipation strip 17 away from the axis of the end cover body 1. The extension plate 41 is slidably embedded in the groove 112, and the sliding direction of the extension plate 41 is perpendicular to the axis of the end cover body 1. The sidewall of the extension plate 41 is in contact with the groove wall of the groove 112. The thermal expansion blocks 42 are used to push the extension plate 41 to slide. One end of the thermal expansion block 42 is fixedly connected to the bottom of the groove 112, and the other end of the thermal expansion block 42 is fixedly connected to the end of the extension plate 41 near the bottom of the groove 112.

[0047] The implementation principle of the electrophoretic paint motor front end cover according to this application embodiment is as follows: When installing the end cover body 1, the motor end cover is brought close to the motor housing, and the first rounded corner 15 abuts against the inner wall of the motor housing, so that the motor housing is embedded in the annular groove 14, and the inner wall of the motor housing fits against the groove wall of the annular groove 14. The positioning rod 31 abuts against the motor housing, and pushes the positioning rod 31 into the positioning hole 162. When the end cover body 1 is rotated, when the positioning hole 162 is aligned with the positioning groove of the motor housing, the first reset member 32 pushes the positioning rod 31 out of the positioning hole 162, realizing the initial fixation of the end cover body 1 and the motor housing. The fixing bolt passes through the connecting hole 161 and is threadedly connected to the motor housing, realizing the fixed connection of the end cover body 1 and the motor housing.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A front end cover for an electrophoretic paint motor, characterized in that: Includes an end cap body (1); the end cap body (1) is provided with a through hole (11); the through hole (11) passes through the end cap body (1) along the axis of the end cap body (1); the through hole (11) is used for the motor shaft to pass through; the outer surface of the end cap body (1) is covered with an anti-corrosion layer (2); the anti-corrosion layer (2) is made of electrophoretic paint.

2. The electrophoretic paint motor front end cover according to claim 1, characterized in that: The end cap body (1) has a groove (12) on the side near the motor housing; the axis of the groove (12) coincides with the axis of the through hole (11).

3. The electrophoretic paint motor front end cover according to claim 2, characterized in that: The bottom of the groove (12) is connected to a number of reinforcing ribs (13); the number of reinforcing ribs (13) are distributed circumferentially around the axis of the through hole (11); the reinforcing ribs (13) extend from the inner wall of the groove (12) to the outer wall of the groove (12).

4. The electrophoretic paint motor front end cover according to claim 1, characterized in that: The end cap body (1) has an annular groove (14) on its outer periphery near the motor housing; the annular groove (14) is used to insert one end of the motor housing; the groove wall of the annular groove (14) is used to fit against the inner wall of the motor housing; the groove wall of the annular groove (14) away from the bottom of the groove is provided with a first rounded corner (15); the first rounded corner (15) is used to abut against the inner wall of the motor housing.

5. The electrophoretic paint motor front end cover according to claim 4, characterized in that: It also includes a positioning rod (31) and a first reset member (32); a plurality of connecting seats (16) are connected to the outer periphery of the end cover body (1); the plurality of connecting seats (16) are distributed at intervals around the axis of the end cover body (1); the connecting seat (16) is provided with a connecting hole (161); the connecting hole (161) is used for the fixing bolt to pass through and be threaded to the motor housing; the connecting seat (16) is provided with a positioning hole (162); the positioning hole (162) is connected to the annular groove (14); the positioning rod (31) is coaxially slidably embedded in the positioning hole (162); the end of the positioning rod (31) near the annular groove (14) is used to be embedded in the positioning groove of the motor housing; the first reset member (32) is connected between the positioning rod (31) and the end cover body (1); the first reset member (32) makes the positioning rod (31) tend to extend into the annular groove (14).

6. The electrophoretic paint motor front end cover according to claim 5, characterized in that: The number of positioning holes (162) is the same as the number of connecting holes (161) and they correspond one-to-one; the number of positioning rods (31) and the number of first reset pieces (32) are the same as the number of positioning holes (162) and they correspond one-to-one.

7. The electrophoretic paint motor front end cover according to claim 6, characterized in that: The end of the positioning hole (162) away from the annular groove (14) passes through the connecting seat (16); when the end of the positioning rod (31) near the annular groove (14) is embedded in the positioning hole (162); the end of the positioning rod (31) away from the annular groove (14) extends out of the positioning hole (162); when the positioning rod (31) is embedded in the positioning groove of the motor housing; the end of the positioning rod (31) away from the annular groove (14) is flush with the side surface of the connecting seat (16) away from the annular groove (14); the end of the positioning rod (31) away from the annular groove (14) is used to abut against the head of the fixing bolt embedded in the connecting hole (161).

8. The electrophoretic paint motor front end cover according to claim 1, characterized in that: The end cap body (1) is connected to a plurality of heat dissipation strips (17) on its outer periphery; the plurality of heat dissipation strips (17) are distributed circumferentially around the axis of the end cap body (1).

9. The electrophoretic paint motor front end cover according to claim 8, characterized in that: It also includes an extension plate (41) and a thermal expansion block (42); the extension plate (41) is slidably connected to the end cap body (1); the thermal expansion block (42) is connected to the end cap body (1); the thermal expansion block (42) is used to push the extension plate (41) to slide.

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