CN219268609U

CN219268609U - Motor rear end cover

Info

Publication number: CN219268609U
Application number: CN202320160580.5U
Authority: CN
Inventors: 钟岩; 陈刚; 吴明寿; 王志龙; 涂钱洪
Original assignee: Ningbo Zhongchen Auto Parts Co ltd
Current assignee: Ningbo Zhongchen Auto Parts Co ltd
Priority date: 2023-01-12
Filing date: 2023-01-12
Publication date: 2023-06-27
Anticipated expiration: 2033-01-12

Abstract

The utility model relates to the technical field of motors, and discloses a motor rear end cover, which comprises: the cooling device comprises a body, wherein the body is provided with a shaft hole and a first convex edge circumferentially arranged around the shaft hole, the end face of the first convex edge is provided with cooling grooves, the side face of the first convex edge is provided with liquid injection holes communicated with the cooling grooves, the cooling grooves are uniformly arranged; one side of the end face of the first protruding edge, which is close to the shaft hole, is extended with a second protruding edge along the height direction of the first protruding edge, the second protruding edge is arranged along the circumference of the first protruding edge, and the central angle of the second protruding edge is smaller than 360 degrees. The motor rear end cover has the advantages that the whole motor rear end cover can be connected with the motor main body through the first convex edge, so that the installation of the rear end cover is facilitated, and the cooling groove is formed in the first convex edge so as to cool the rear end cover, further, the motor shaft is cooled, and the normal operation of the motor is ensured; in addition, the second protruding edge guarantees the stability of rear end cover and motor main part installation, and the mounted position is accurate.

Description

Motor rear end cover

Technical Field

The utility model relates to the technical field of motors, in particular to a motor rear end cover.

Background

With the gradual aggravation of environmental pollution and the continuous consumption of world fuel, in the next few years, the use frequency of fuel vehicles is lower and lower, and the use frequency of new energy vehicles is higher and higher. The existing new energy automobile mainly relates to an electric automobile, the structure of the existing electric automobile is basically a car shell, a controller, a motor and a battery pack, wherein the controller, the motor and the battery pack are arranged in the car shell, the battery pack provides power for the controller and the motor in the running process of the electric automobile, then the motor is controlled to run through the controller, and the effect of driving the car shell to move is achieved.

The existing motor rear end cover is connected with the motor main body by adopting a friction welding process, so that the installation of an internal component of the motor is inconvenient, and a cooling groove cannot be formed on the end face of the rear end cover due to friction welding, so that the motor has poor heat dissipation effect; meanwhile, the rear end cover and the motor body are not accurately installed and positioned, so that the motor shaft is not stable to rotate.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to solve the technical problems of providing the motor rear end cover with good heat dissipation effect and stable installation.

The technical scheme adopted for solving the technical problems is that the utility model provides a motor rear end cover, which comprises:

the cooling device comprises a body, wherein the body is provided with a shaft hole and a first protruding edge circumferentially arranged around the shaft hole, the end face of the first protruding edge is provided with cooling grooves, the side face of the first protruding edge is provided with liquid injection holes communicated with the cooling grooves, the number of the cooling grooves is multiple, and the number of the cooling grooves are uniformly arranged;

the end face of the first protruding edge is close to one side of the shaft hole, the second protruding edge extends in the height direction of the first protruding edge, the second protruding edge is arranged along the circumference of the first protruding edge, and the central angle of the second protruding edge is smaller than 360 degrees.

Further, a plurality of first mounting holes penetrating through the first protruding edge are formed in the end face of the first protruding edge, and the first mounting holes and the cooling groove are arranged at intervals.

Further, a fixing seat is arranged on the body around the circumference of the shaft hole, and a hollowed-out part is arranged between the fixing seat and the first protruding edge.

Further, the body is recessed downwards to form a recessed portion, the fixing seat is arranged in the recessed portion, and ten first reinforcing ribs are arranged in the recessed portion around the circumference of the fixing seat.

Further, the outer wall of the first protruding edge is provided with an installation seat, a plurality of second reinforcing ribs are arranged between the first protruding edge and the installation seat, and a plurality of second reinforcing ribs are arranged along the length direction of the installation seat.

Further, an installation groove communicated with the hollowed-out part is formed in the installation seat, and a sealing groove is formed in the installation seat around the circumference of the installation groove.

Further, one end of the body, which is far away from the second protruding edge, is provided with a third protruding edge and a fourth protruding edge which are arranged at intervals, and a wire dividing groove is formed between the third protruding edge and the fourth protruding edge.

Further, a plurality of second mounting holes are formed in the body around the circumference of the shaft hole, and the branching grooves gradually decrease from one end far away from the shaft hole to one end close to the shaft hole.

Compared with the prior art, the utility model has at least the following beneficial effects:

according to the motor rear end cover, the first protruding edge is arranged on the body, the first mounting hole is formed in the first protruding edge, so that the whole rear end cover can be connected with the motor main body through the first protruding edge, the installation of the rear end cover is facilitated, the cooling groove is formed in the first protruding edge, the rear end cover is cooled, the motor shaft is further cooled, and the normal operation of the motor is guaranteed; in addition, set up the protruding edge of second on first protruding edge, the protruding edge of second is used for offseting with motor main part, guarantees the stability of rear end cover and motor main part installation, and the mounted position is accurate.

Drawings

FIG. 1 is a schematic view of the structure of a rear end cap of the motor of the present utility model;

FIG. 2 is a schematic view of the back side of FIG. 1;

fig. 3 is a schematic structural diagram of another view of fig. 1.

In the figure:

100. a body; 110. a shaft hole; 120. a first flange; 121. a cooling tank; 122. a liquid injection hole; 123. a first mounting hole; 130. a second flange; 140. a fixing seat; 150. a hollowed-out part; 160. a recessed portion; 161. a first reinforcing rib; 170. a third ledge; 171. wire dividing grooves; 180. a fourth flange; 190. a second mounting hole; 200. a mounting base; 210. a second reinforcing rib; 220. a mounting groove; 230. and (5) sealing the groove.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1 to 3, a rear end cover of a motor is characterized by comprising: the cooling device comprises a body 100, wherein the body 100 is provided with a shaft hole 110 and a first convex edge 120 circumferentially arranged around the shaft hole 110, the end face of the first convex edge 120 is provided with a cooling groove 121, the side face of the first convex edge 120 is provided with a liquid injection hole 122 communicated with the cooling groove 121, the cooling groove 121 is provided with a plurality of cooling grooves 121, and the plurality of cooling grooves 121 are uniformly arranged; a second protruding edge 130 extends along the height direction of the first protruding edge 120 on one side of the end surface of the first protruding edge 120, which is close to the shaft hole 110, the second protruding edge 130 is arranged along the circumferential direction of the first protruding edge 120, and the central angle of the second protruding edge 130 is smaller than 360 degrees.

Specifically, the shaft hole 110 on the body 100 is used for accommodating a motor shaft, a bearing is embedded in the shaft hole 110 during installation, the first protruding edge 120 is used as a connecting part of a rear end cover and a motor main body by arranging the first protruding edge 120 and the cooling groove 121 on the body 100, the cooling groove 121 is arranged on the first protruding edge 120 so as to radiate heat of the whole motor, and meanwhile, the liquid injection hole 122 is arranged so as to facilitate adding of cooling liquid; in addition, still be provided with the protruding edge 130 of second, this protruding edge 130 is with the installation to rear end cover and motor main part location, guarantees rear end cover mounted position's accuracy, and the protruding edge 130 of second offsets with motor main part simultaneously, prevents that the rear end cover from shaking, guarantees motor shaft pivoted stationarity, and the central angle of protruding edge 130 of second is less than 360 degrees, and protruding edge 130 of second is not a complete annular promptly, and the breach between the protruding edge 130 of second both ends is for other spare parts to pass.

The end surface of the first flange 120 is provided with a plurality of first mounting holes 123 penetrating the first flange 120, and the first mounting holes 123 and the cooling groove 121 are disposed at intervals. The first mounting hole 123 is configured to allow a bolt to pass through, so that the rear end cover is mounted on the motor body, and the rear end cover is detachably connected to facilitate disassembly and assembly of the motor; meanwhile, the first mounting holes 123 are arranged at intervals with the cooling grooves 121, namely, the heat dissipation performance is improved as much as possible while the mounting stability of the rear end cover is guaranteed, and the first mounting holes 123 and the cooling grooves 121 are uniformly arranged to guarantee the heat dissipation uniformity.

In this embodiment, a fixing seat 140 is disposed on the body 100 around the circumference of the shaft hole 110, and a hollow portion 150 is disposed between the fixing seat 140 and the first flange 120; the fixing base 140 is used for installing a bearing and a motor shaft, and the hollowed-out portion 150 is used for passing through a power supply line and the like.

In this embodiment, the body 100 is recessed downward to form a recess 160, the fixing base 140 is disposed in the recess 160, and ten first reinforcing ribs 161 are disposed in the recess 160 around the circumference of the fixing base 140; the recess 160 is provided to increase the inner space of the rear cover, and simultaneously, a plurality of first reinforcing ribs 161 are provided to secure the supporting strength of the fixing base 140.

Preferably, the outer wall of the first flange 120 is provided with a mounting seat 200, a plurality of second reinforcing ribs 210 are disposed between the first flange 120 and the mounting seat 200, and a plurality of second reinforcing ribs 210 are disposed along the length direction of the mounting seat 200. In actual use, the mounting seat 200 is integrally disposed with the body 100, and the mounting seat 200 is disposed on the body 100, so that the rear end cover is matched with other parts of the motor, and a plurality of second reinforcing ribs 210 are disposed to enhance the connection strength between the body 100 and the mounting seat 200.

Further preferably, the mounting seat 200 is provided with a mounting groove 220 communicated with the hollowed-out portion 150, and the mounting seat 200 is provided with a sealing groove 230 around the circumference of the mounting groove 220. The installation groove 220 and the hollowed-out portion 150 are arranged on the other side of the rear end cover through a power supply line, and the sealing groove 230 is arranged for installing a sealing ring so as to ensure tightness between the rear end cover and the motor main body.

In this embodiment, a third protruding edge 170 and a fourth protruding edge 180 are disposed at an end of the body 100 away from the second protruding edge 130 at intervals, and a wire dividing groove 171 is formed between the third protruding edge 170 and the fourth protruding edge 180 for allowing the wire bundles to pass through, so as to avoid mutual interference between the wire bundles; preferably, a plurality of second mounting holes 190 are formed in the body 100 around the circumference of the shaft hole 110, the wire dividing groove 171 is gradually reduced from one end far from the shaft hole 110 to one end near the shaft hole 110, the wire harness is prevented from loosening, and one end of the wire harness passing through the wire dividing groove 171 is fixed in the second mounting holes 190 by screws.

In this scheme, this motor rear end cap whole is made simply, and the installation of being convenient for, and cooling performance is good, and guarantees its installation accuracy and stability.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

Claims

1. The utility model provides a motor rear end cap which characterized in that includes:

2. The motor rear end cover of claim 1, wherein a plurality of first mounting holes penetrating through the first flange are formed in the end face of the first flange, and the first mounting holes are arranged at intervals with the cooling groove.

3. The motor rear end cover of claim 1, wherein a fixing seat is arranged on the body around the circumference of the shaft hole, and a hollowed-out part is arranged between the fixing seat and the first protruding edge.

4. A rear end cover for a motor as set forth in claim 3 wherein said body is downwardly recessed to form a recess, said holder is disposed in said recess, and said recess is provided with ten first reinforcing ribs around a circumference of said holder.

5. A rear end cover for a motor according to claim 3, wherein an installation seat is provided on an outer wall of the first flange, a plurality of second reinforcing ribs are provided between the first flange and the installation seat, and a plurality of second reinforcing ribs are provided along a length direction of the installation seat.

6. The motor rear end cover of claim 5, wherein the mounting seat is provided with a mounting groove communicated with the hollowed-out portion, and the mounting seat is provided with a sealing groove around the circumference of the mounting groove.

7. The motor rear end cover of claim 1, wherein a third protruding edge and a fourth protruding edge are arranged at intervals at one end of the body far away from the second protruding edge, and a wire dividing groove is formed between the third protruding edge and the fourth protruding edge.

8. The motor rear end cap of claim 7, wherein the body is provided with a plurality of second mounting holes around the circumference of the shaft hole, and the branching groove is gradually reduced from one end far from the shaft hole to one end near the shaft hole.