Front end cover for motor

Through the integrated injection molding of the end cover body and the support column and the wavy design of the metal connecting piece, combined with auxiliary components, the problems of low production efficiency and poor sealing of the motor front end cover are solved, and efficient sealing and stable connection are achieved.

CN223334529UActive Publication Date: 2025-09-12CHANGZHOU DUOWEI ELECTRIC
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Patent Information

Application Number
CN202422602249.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-25
Publication Date
2025-09-12
Estimated Expiration
2034-10-25

AI Technical Summary

Technical Problem

The existing potting process of the motor front end cover is complicated and has low production efficiency. In addition, the epoxy glue is easily affected by the environment, resulting in poor sealing effect.

Method used

The end cover body and the support column are integrally injection molded, and a metal connecting piece is embedded in the support column. The metal connecting piece is bent into a wave shape to increase the contact area, and auxiliary components such as auxiliary plates, auxiliary sealing rings and liquid inlet pipes are equipped to maintain sealing.

Benefits of technology

The production process is simplified, the production efficiency is improved, and through the airtightness and sealing between the support column and the metal connecting piece, the auxiliary component can continue to maintain the sealing when the sealing effect is reduced.

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Abstract

The utility model provides a front end cover for a motor, and relates to the field of motors. The end cover comprises an end cover body and a metal connecting piece, a supporting column is integrally formed on the end cover body in an injection molding mode, and the metal connecting piece is embedded in the supporting column. The device has the effect of improving the production efficiency.
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Description

Technical Field

[0001] The present application relates to the field of motors, and in particular to a front end cover for a motor. Background Art

[0002] The front end cover is used to seal the opening of the motor, and the motor is connected to the car through the setting of the front end cover.

[0003] Currently, in the related art, a front end cover includes: a cover body, a shell and a connecting piece, the shell is fixed on the cover body, the connecting piece is arranged in the shell, and the shell is filled with epoxy glue.

[0004] However, although the above technology can meet certain sealing requirements, the potting process is complicated, which easily leads to low production efficiency; and epoxy glue is easily affected by the environment, and the sealing effect is likely to deteriorate after long-term use. Utility Model Content

[0005] In order to improve the problems existing in the above technology, the present application provides a front end cover for a motor.

[0006] This application provides a front end cover for a motor, which adopts the following technical solution:

[0007] A front end cover for a motor comprises an end cover body and a metal connecting piece. A support column is integrally injection-molded on the end cover body, and the metal connecting piece is embedded in the support column.

[0008] By adopting the above technical solution, the end cover body and the support column are integrally injection molded, which can simplify the process and improve production efficiency; and the airtightness between the support column and the metal connecting piece is also guaranteed.

[0009] Optionally, one end of the metal connecting piece located inside the supporting column is wavy.

[0010] By adopting the above technical solution, the metal connecting piece is bent into a wave shape, so as to increase the contact area between the support column and the metal connecting piece, thereby improving the strength and sealing between the support column and the metal connecting piece.

[0011] Optionally, an auxiliary component for enhancing sealing is provided between the support column and the metal connecting piece.

[0012] By adopting the above technical solution, once the sealing effect between the metal connecting piece and the support column is reduced, the auxiliary component can be used to continue to maintain the sealing between the metal connecting piece and the support column.

[0013] Optionally, the auxiliary component includes: an auxiliary plate and an auxiliary sealing ring, the auxiliary plate is fixed on the support column, and a penetration hole is opened through the auxiliary plate, an annular groove is opened on the inner wall of the penetration hole, the auxiliary sealing ring is arranged in the annular groove, and the metal connecting plate passes through the auxiliary sealing ring.

[0014] By adopting the above technical solution, the auxiliary sealing ring is used to improve the sealing between the metal connecting piece and the auxiliary plate.

[0015] Optionally, the auxiliary component further includes: an extension rod and a hook rod, the hook rod is buried in the support column, one end of the extension rod is fixed to the auxiliary plate, and the other end is fixedly connected to the hook rod.

[0016] By adopting the above technical solution and utilizing the setting of the hook rod, the connection stability between the auxiliary plate and the support column is improved.

[0017] Optionally, the auxiliary component also includes: a sac, a liquid inlet tube and a cover plate, the sac is arranged in the annular groove, one end of the liquid inlet tube is connected to the sac, and the other end passes through the auxiliary plate, a sealing groove is opened on the auxiliary plate, and the cover plate is arranged in the sealing groove.

[0018] By adopting the above technical solution, if the sealing effect between the auxiliary sealing ring and the metal connecting piece is not good, the cover plate can be removed, and then liquid can be added to the bag through the liquid inlet tube to increase the volume of the bag, thereby squeezing the auxiliary sealing ring and the metal connecting piece tightly together.

[0019] Optionally, a fixing component is provided between the cover plate and the auxiliary plate, and the fixing component includes: a fixing rod and a fixing spring, a receiving hole is provided on the cover plate, and a fixing hole is provided on the inner wall of the sealing groove, one end of the fixing rod is provided in the fixing hole, and the other end is provided in the receiving hole, and the fixing spring is fixed between the fixing rod and the bottom of the receiving hole.

[0020] By adopting the above technical solution, when closing the cover, the fixing rod is first pressed into the accommodating hole, and then the cover plate is placed in the closing groove; at this time, the fixing rod is automatically inserted into the fixing hole by the push of the fixing spring, thereby completing the rapid installation of the cover plate and the auxiliary plate.

[0021] Optionally, the fixing assembly further includes: a connecting rope, a pull rod and a pull plate, a pull hole is opened on the cover plate, the pull plate is arranged in the pull hole, the connecting rope is fixed between the fixing rod and the pull plate, and the pull rod is fixed on the pull plate.

[0022] By adopting the above technical solution, when liquid needs to be added, pinch the pull rod and pull the pull plate upward. The pull plate will pull the connecting rope to pull the fixing rod back from the fixing hole to the accommodating hole, thereby releasing the lock on the cover plate.

[0023] Optionally, a sealing gasket is fixedly provided on the cover plate.

[0024] By adopting the above technical solution, the sealing gasket can improve the sealing between the cover plate and the liquid inlet pipe.

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

[0026] 1. By integrally injecting the end cap body and the support column, the process can be simplified to improve production efficiency; and the airtightness between the support column and the metal connecting piece is also guaranteed.

[0027] 2. The metal connecting piece is bent into a wave shape so as to increase the contact area between the support column and the metal connecting piece, thereby improving the strength and sealing between the support column and the metal connecting piece.

[0028] 3. Once the sealing effect between the metal connecting piece and the support column is reduced, an auxiliary component can be used to continue to maintain the sealing between the metal connecting piece and the support column. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a structural diagram according to the first embodiment of the present application;

[0030] Figure 2 yes Figure 1 A schematic top view of

[0031] Figure 3 It is along Figure 2 A schematic cross-sectional view taken along the cutting line AA in FIG.

[0032] Figure 4 This is a schematic structural diagram according to the second embodiment of the present application;

[0033] Figure 5 It is along Figure 4 A schematic cross-sectional view taken along the cutting line BB in FIG.

[0034] Figure 6 yes Figure 5 Schematic partial enlarged view of part C.

[0035] In the figure: 1. End cover body; 11. Support column; 2. Metal connecting piece; 3. Auxiliary component; 31. Auxiliary plate; 311. Penetration hole; 312. Ring groove; 313. Covering groove; 314. Fixing hole; 32. Auxiliary sealing ring; 34. Extension rod; 35. Hook rod; 36. Bag; 37. Liquid inlet pipe; 38. Cover plate; 381. Accommodating hole; 382. Pull hole; 4. Fixing component; 41. Fixing rod; 42. Fixing spring; 43. Connecting rope; 44. Pull rod; 45. Pull plate; 5. Sealing gasket. DETAILED DESCRIPTION

[0036] The present application provides a front end cover for a motor.

[0037] Example 1:

[0038] See also Figure 1 A front end cover for a motor includes an end cover body 1, which is used to cover the motor. A support column 11 is integrally injection-molded on the end cover body 1. In this embodiment, the support column 11 is made of nylon plastic. A metal connecting piece 2 has one end embedded in the support column 11 and the other end extending outward through the support column 11. The metal connecting piece 2 is used to connect the motor to the vehicle. Integrating the end cover body 1 and the support column 11 into one piece simplifies the process and improves production efficiency. Furthermore, airtightness between the support column 11 and the metal connecting piece 2 is ensured.

[0039] See also Figure 2 and Figure 3 Furthermore, one end of the metal connecting piece 2 located inside the support column 11 is wavy. Before injection molding, the metal connecting piece 2 is bent into a wavy shape so as to increase the contact area between the support column 11 and the metal connecting piece 2, thereby improving the strength and sealing between the support column 11 and the metal connecting piece 2.

[0040] The working principle of the first embodiment is as follows: by integrally injecting the end cover body 1 and the support column 11 , the process can be simplified to improve production efficiency; and the airtightness between the support column 11 and the metal connecting piece 2 is also guaranteed.

[0041] Example 2:

[0042] See also Figure 4 and Figure 5 The difference between this embodiment and the first embodiment is that an auxiliary component 3 is provided between the end of the support column 11 away from the end cover body 1 and the metal connecting piece 2. Once the sealing effect between the metal connecting piece 2 and the support column 11 is reduced, the auxiliary component 3 can be used to continue to maintain the sealing between the metal connecting piece 2 and the support column 11.

[0043] See also Figure 6The auxiliary assembly 3 includes an auxiliary plate 31 and an auxiliary sealing ring 32. The auxiliary plate 31 is fixed to the end wall of the support column 11 away from the end cap body 1. During the injection molding of the support column 11, the auxiliary plate 31 can be fixed to the support column 11. The top wall of the support column 11 is provided with a through hole 311, and the inner wall of the through hole 311 is provided with an annular groove 312. The auxiliary sealing ring 32 is disposed in the annular groove 312. The metal connecting piece 2 is provided with the auxiliary sealing ring 32, which is used to improve the sealing between the metal connecting piece 2 and the auxiliary plate 31.

[0044] See also Figure 6 Furthermore, the auxiliary assembly 3 further includes a bladder 36, a liquid inlet pipe 37, and a cover plate 38. The bladder 36 is disposed within the annular groove 312 and abuts against the auxiliary sealing ring 32. In this embodiment, the bladder 36 can be made of materials such as rubber or latex and is used to receive liquid. A sealing groove 313 is defined on the top wall of the auxiliary plate 31, and the cover plate 38 is disposed within the sealing groove 313.

[0045] See also Figure 6 One end of the liquid inlet tube 37 is connected to the sac 36, and the other end passes through the sealing groove 313. The cover plate 38 is in contact with the liquid inlet tube 37. The cover plate 38 is used to close the opening of the liquid inlet tube 37; if the sealing effect between the auxiliary sealing ring 32 and the metal connecting piece 2 is not good, the cover plate 38 can be removed, and then liquid can be added to the sac 36 through the liquid inlet tube 37 to increase the volume of the sac 36, thereby squeezing the auxiliary sealing ring 32 and the metal connecting piece 2 tightly.

[0046] See also Figure 6 Furthermore, a sealing gasket 5 is fixedly provided on the bottom wall of the cover plate 38 , and the sealing gasket 5 is tightly pressed against the liquid inlet pipe 37 , so that the sealing gasket 5 can improve the sealing between the cover plate 38 and the liquid inlet pipe 37 .

[0047] See also Figure 6 Furthermore, a fixing assembly 4 is provided between the auxiliary plate 31 and the cover plate 38. The fixing assembly 4 includes: a fixing rod 41 and a fixing spring 42. The side wall of the cover plate 38 is provided with a receiving hole 381, and the inner side wall of the sealing groove 313 is provided with a fixing hole 314; one end of the fixing rod 41 is provided in the receiving hole 381, and the other end is provided in the fixing hole 314. The fixing rod 41 is used to lock the cover plate 38 and the auxiliary plate 31.

[0048] See also Figure 6 The fixing spring 42 is fixed between the fixing rod 41 and the bottom of the accommodating hole 381. When closing the cover, the fixing rod 41 is first pressed into the accommodating hole 381, and then the cover plate 38 is placed in the closing groove 313; at this time, the fixing rod 41 is automatically inserted into the fixing hole 314 by the push of the fixing spring 42, thereby completing the quick installation of the cover plate 38 and the auxiliary plate 31.

[0049] See also Figure 6 Furthermore, the fixing assembly 4 also includes a connecting rope 43, a pull rod 44, and a pull plate 45. A pull hole 382 is defined in the top wall of the cover plate 38, and the pull plate 45 is slidably disposed within the pull hole 382. The pull rod 44 is fixed to the top wall of the pull plate 45. One end of the connecting rope 43 is fixed to the end of the fixing rod 41 near the fixing spring 42, and the other end is fixed to the bottom wall of the pull plate 45. To replenish liquid, the pull rod 44 is pinched to lift the pull plate 45 upward. The pull plate 45 pulls the connecting rope 43, pulling the fixing rod 41 from the fixing hole 314 back into the receiving hole 381, thereby releasing the lock on the cover plate 38.

[0050] See also Figure 6 Furthermore, the auxiliary component 3 also includes: an extension rod 34 and a hook rod 35, the hook rod 35 is buried in the support column 11; one end of the extension rod 34 is fixedly connected to the auxiliary plate 31, and the other end is buried in the support column 11 and fixedly connected to the hook rod 35, and the hook rod 35 and the extension rod 34 are perpendicular to each other. The setting of the hook rod 35 is used to improve the connection stability between the auxiliary plate 31 and the support column 11.

[0051] The working principle of embodiment 2 is as follows: if the sealing effect between the auxiliary sealing ring 32 and the metal connecting piece 2 is not good, the cover plate 38 can be removed, and then liquid can be added to the bag 36 through the liquid inlet tube 37 to increase the volume of the bag 36, thereby squeezing the auxiliary sealing ring 32 and the metal connecting piece 2 tightly together.

[0052] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A front end cover for a motor, characterized in that: include: An end cover body (1) and a metal connecting piece (2); a support column (11) is integrally injection-molded on the end cover body (1); and the metal connecting piece (2) is embedded in the support column (11).

2. The front end cover for a motor according to claim 1, characterized in that: One end of the metal connecting piece (2) located inside the supporting column (11) is wavy.

3. The front end cover for a motor according to claim 1, characterized in that: An auxiliary component (3) for enhancing sealing is provided between the support column (11) and the metal connecting piece (2).

4. The front end cover for a motor according to claim 3, characterized in that: The auxiliary component (3) comprises: an auxiliary plate (31) and an auxiliary sealing ring (32); the auxiliary plate (31) is fixed on the support column (11); a through hole (311) is provided on the auxiliary plate (31); an annular groove (312) is provided on the inner wall of the through hole (311); the auxiliary sealing ring (32) is arranged in the annular groove (312); and the metal connecting piece (2) is provided with the auxiliary sealing ring (32).

5. The front end cover for a motor according to claim 4, characterized in that: The auxiliary component (3) further includes: an extension rod (34) and a hook rod (35), wherein the hook rod (35) is embedded in the support column (11), and one end of the extension rod (34) is fixed to the auxiliary plate (31), and the other end is fixedly connected to the hook rod (35).

6. The front end cover for a motor according to claim 4, characterized in that: The auxiliary component (3) further comprises: a sac (36), a liquid inlet pipe (37) and a cover plate (38); the sac (36) is arranged in the annular groove (312); one end of the liquid inlet pipe (37) is connected to the sac (36) and the other end passes through the auxiliary plate (31); a sealing groove (313) is provided on the auxiliary plate (31); and the cover plate (38) is arranged in the sealing groove (313).

7. The front end cover for a motor according to claim 6, characterized in that: A fixing assembly (4) is provided between the cover plate (38) and the auxiliary plate (31), and the fixing assembly (4) comprises: a fixing rod (41) and a fixing spring (42); a receiving hole (381) is provided on the cover plate (38); a fixing hole (314) is provided on the inner wall of the sealing groove (313); one end of the fixing rod (41) is provided in the fixing hole (314), and the other end is provided in the receiving hole (381); and the fixing spring (42) is fixed between the fixing rod (41) and the bottom of the receiving hole (381).

8. The front end cover for a motor according to claim 7, characterized in that: The fixing assembly (4) further comprises: a connecting rope (43), a pull rod (44) and a pull plate (45); a pull hole (382) is provided on the cover plate (38); the pull plate (45) is arranged in the pull hole (382); the connecting rope (43) is fixed between the fixing rod (41) and the pull plate (45); and the pull rod (44) is fixed on the pull plate (45).

9. The front end cover for a motor according to claim 6, characterized in that: A sealing gasket (5) is fixedly arranged on the cover plate (38).