CN214255976U

CN214255976U - Casing and use its motor

Info

Publication number: CN214255976U
Application number: CN202120062989.4U
Authority: CN
Inventors: 王凯旋
Original assignee: Prestolite Electric Weifang Ltd
Current assignee: Prestolite Electric Weifang Ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-09-21
Anticipated expiration: 2031-01-11

Abstract

The utility model provides a casing and use its motor, this motor includes the casing, this casing includes sealing connection's shell and inner bag, the inner bag with be provided with the cooling water course between the shell, be provided with on the shell with the mouth of a river that the cooling water course is connected, the both ends of shell are provided with connecting portion respectively, the one end of inner bag correspond to connecting portion are provided with connection structure, inner bag and shell are close to both ends punishment and do not are provided with the sealing. The front end cover and the rear end cover of the motor are respectively connected with the connecting part of the shell through connecting pieces, the connecting structure is arranged at the rear end of the inner container, and the connecting pieces penetrate through the rear end cover and the connecting structure of the inner container to be connected with the connecting part of the shell. The utility model provides an among the prior art problem of motor die-casting casing sand discharge difficulty to enable the motor lightweight, increase whole car duration.

Description

Casing and use its motor

Technical Field

The utility model relates to a new energy automobile field, especially a casing and use its motor.

Background

The casing of the driving motor for the electric automobile and the electric automobile is generally formed by die-casting, and because the cooling water channel is arranged in the casing, after the die-casting is finished, the cooling water channel sand core needs to be vibrated to be broken and then discharged out of the casing, special equipment is needed in the process, and the risk that the cooling water channel sand core cannot be discharged out of the cooling water channel exists. The die-cast casing is generally metal, and weight is big, is unfavorable for motor lightweight and whole car continuation of the journey.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the difficult problem of motor die-casting casing sand discharge among the prior art, provide a casing and use its motor, enable the motor lightweight and increase whole car duration.

In order to achieve the above object, the utility model provides a casing of motor, wherein, including sealing connection's shell and inner bag, the inner bag with be provided with the cooling water course between the shell, be provided with on the shell with the mouth of a river that the cooling water course is connected, the both ends of shell are provided with connecting portion respectively, the one end of inner bag corresponds to connecting portion are provided with connection structure, inner bag and shell are close to both ends punishment and do not are provided with the sealing.

In the casing of the motor, the cooling water channel surrounds the outer wall of the inner container, and the water ports are arranged corresponding to two ends of the cooling water channel.

In the casing of the motor, the sealing part is a sealing groove formed in two ends of the inner container, and a sealing ring is installed in the sealing groove.

In the casing of the motor, the connecting portions are a plurality of connecting bosses uniformly arranged at two ends of the casing, and the connecting bosses are provided with connecting holes.

In the casing of the motor, the connecting hole is internally provided with the injection molding nut, and the injection molding nut is provided with the flat position and the groove.

In the casing of the motor, the groove is formed in the middle of the outer wall of the injection molding nut, and the flat parts are symmetrically formed on the outer walls of the two sides of the groove respectively.

In the above-mentioned motor casing, the injection-molded nut is a steel or brass material.

In the above-mentioned motor casing, the casing is a plastic part.

In the casing of the motor, the inner container is made of an aluminum alloy material.

In order to better achieve the above object, the utility model also provides a motor, wherein, including foretell casing, the front end housing and the rear end cap of motor respectively through the connecting piece with the connecting portion of the shell of casing are connected, the connection structure setting of the inner bag of casing is in the rear end of inner bag, the connecting piece passes the rear end housing with the connection structure of inner bag with the connecting portion of shell are connected.

The technical effects of the utility model reside in that:

the utility model provides an among the prior art problem of motor die-casting casing sand discharge difficulty, enable the motor lightweight to increase whole car duration.

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

Drawings

Fig. 1 is a schematic structural diagram of a motor according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is an exploded view of a housing according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a housing according to an embodiment of the present invention;

fig. 5 is a schematic structural view of an injection molding nut according to an embodiment of the present invention.

Wherein the reference numerals

1 case

11 outer cover

111 connecting part

12 inner container

121 connection structure

13 injection molding nut

131 flat position

132 groove

14 sealing ring

15 cooling water channel

16 nozzle

2 stator

3 rotor

4 rotor shaft

5 front end cover

6 rear end cap

7 locking device

8 water nozzle

9 bearing

10 connecting piece

Detailed Description

The following describes the structural and operational principles of the present invention in detail with reference to the accompanying drawings:

referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a motor according to an embodiment of the present invention, and fig. 2 is a sectional view taken along a line a-a of fig. 1. The utility model discloses a motor, include casing 1 and install stator 2 and rotor 3 in the casing 1, this rotor 3 is installed on rotor shaft 4, and rotor shaft 4's both ends are supported through bearing 9 respectively and are installed on front end housing 5 and rear end housing 6, and stator 2's one end is locked with locker 7, front end housing 5 and rear end housing 6 are connected with shell 11's connecting portion 111 through connecting piece 10 respectively, and the preferred connecting screw of this connecting piece 10, the connection structure 121 of inner bag 12 set up the rear end of inner bag 12, connecting piece 10 passes rear end housing 6 with the connection structure 121 of inner bag 12 with shell 11's connecting portion 111 is connected. The composition, structure, mutual position relationship, connection relationship and function of other parts of the motor are mature prior art, so that no further description is needed, and the following description is only given to the housing 1 of the present invention.

Referring to fig. 3-5, fig. 3 is an exploded view of a housing according to an embodiment of the present invention, fig. 4 is a sectional view of a housing 1 according to an embodiment of the present invention, and fig. 5 is a schematic structural view of an injection molding nut 13 according to an embodiment of the present invention. The utility model discloses a casing 1, shell 11 and inner bag 12 including sealing connection, inner bag 12 with be provided with cooling water course 15 between the shell 11, be provided with on the shell 11 with the mouth of a river 16 that cooling water course 15 is connected, mouth of a river 16 can be connected with water injection well choke 8, the both ends of shell 11 are provided with connecting portion 111 respectively, the one end of inner bag 12 correspond to connecting portion 111 is provided with connection structure 121, and this connection structure 121 is preferred to be the through-hole, inner bag 12 and shell 11 are close to both ends punishment and do not are provided with the sealing.

The cooling water channel 15 is surrounded on the outer wall of the inner container 12, and the water gap 16 is arranged corresponding to two ends of the cooling water channel 15. The sealing parts are preferably sealing grooves arranged at two ends of the inner container 12, and sealing rings 14 are arranged in the sealing grooves. The connecting portions 111 are a plurality of connecting bosses uniformly arranged at two ends of the housing 11, and connecting holes are formed in the connecting bosses. An injection molding nut 13 is arranged in the connecting hole, and a flat position 131 and a groove 132 are arranged on the injection molding nut 13. The groove 132 is disposed in the middle of the outer wall of the injection molding nut 13, and the flat portions 131 are respectively symmetrically disposed on the outer walls of two sides of the groove 132. The injection-molded nut 13 is preferably made of steel or brass, the housing 11 is preferably made of plastic, and the inner container 12 is preferably made of aluminum alloy.

The shell 11 and the inner container 12 of the utility model are of split structure, the cooling water channel 15 is arranged on the inner container 12, and sand core casting and sand discharge are not needed; the shell 11 and the inner container 12 are sealed by a sealing ring 14; the shell 11 is preferably made of plastic, so that the weight of the motor can be reduced, and the motor is light; the injection molding nut 13 is embedded in the connecting part 111 of the shell 11, the injection molding nut 13 is provided with the flat position 131 and the groove 132, the injection molding nut 13 can be fixed in the connecting part 111 of the shell 11, the axial and circumferential positioning effects are achieved, the injection molding nut 13 is prevented from rotating or axially moving when the connecting piece 10 such as a connecting screw is screwed in, and the phenomenon that the connecting screw cannot be normally screwed due to the rotation or the axial movement of the nut is avoided; the connecting bolt of the rear end cover 6 passes through the through hole of the connecting structure 121 of the inner container 12 from the rear end cover 6 to be connected with the injection molding nut 13 embedded in the connecting part 111 of the shell 11.

Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.

Claims

1. The utility model provides a casing of motor, its characterized in that, includes sealing connection's shell and inner bag, the inner bag with be provided with the cooling water course between the shell, be provided with on the shell with the mouth of a river that the cooling water course is connected, the both ends of shell are provided with connecting portion respectively, the one end of inner bag correspond to connecting portion are provided with connection structure, inner bag and shell are close to both ends punishment and do not are provided with the sealing.

2. The motor casing of claim 1, wherein the cooling water passage is formed around an outer wall of the inner container, and the water ports are formed corresponding to both ends of the cooling water passage.

3. The casing of the motor according to claim 1 or 2, wherein the sealing portion is a sealing groove disposed at both ends of the inner container, and a sealing ring is installed in the sealing groove.

4. The machine case of the motor according to claim 1 or 2, wherein the connecting portion is a plurality of connecting bosses uniformly disposed at both ends of the housing, and the connecting bosses are provided with connecting holes.

5. The machine shell of the motor according to claim 4, wherein an injection-molded nut is arranged in the connecting hole, and a flat position and a groove are arranged on the injection-molded nut.

6. The casing of the motor according to claim 5, wherein the groove is formed in the middle of the outer wall of the injection-molded nut, and the flat portions are symmetrically formed on the outer walls of the two sides of the groove.

7. The machine housing of claim 5, wherein the injection molded nut is a piece of steel or brass material.

8. The machine housing of an electric machine according to claim 1 or 2, wherein the housing is a plastic part.

9. The motor casing of claim 1 or 2, wherein the inner container is made of an aluminum alloy material.

10. An electric machine, comprising the casing of any one of claims 1 to 9, wherein the front end cover and the rear end cover of the electric machine are respectively connected with the connecting part of the casing through a connecting piece, the connecting structure of the liner of the casing is arranged at the rear end of the liner, and the connecting piece passes through the connecting structure of the rear end cover and the liner to be connected with the connecting part of the casing.