CN111953117A

CN111953117A - Permanent magnet motor for battery car

Info

Publication number: CN111953117A
Application number: CN201910413327.4A
Authority: CN
Inventors: 王岭森; 张虎涛
Original assignee: Gaoyou Shenfa Motor Manufacturing Co ltd
Current assignee: Gaoyou Shenfa Motor Manufacturing Co ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-11-17

Abstract

The invention relates to the technical field of auxiliary equipment of a battery car and discloses a permanent magnet motor for the battery car, which comprises a casing and a rear end cover, wherein rotating shafts are movably sleeved at two ends inside the casing through bearings, two ends of each rotating shaft penetrate through and extend to the outer parts of two sides of the casing, a cooling fan is fixedly sleeved at one end, positioned outside the casing, of each rotating shaft, a sliding groove is formed in the side wall, close to one end of the cooling fan, of the casing, and a clamping groove which is positioned in the side wall of the casing and communicated with the casing is formed in one side of an inner. This permanent-magnet machine for storage battery car through the combined action of mounting groove and elasticity fixture block, is convenient for install the filter screen in the inside of rear end cap, prevents that the dust in the air from entering into permanent-magnet machine's inside and causing the influence to the permanent magnet to prolonged permanent-magnet machine's life, the dismantlement of the filter screen of being convenient for simultaneously is cleared up or is changed the filter screen to the dust on the filter screen, has accelerated permanent-magnet machine's operating efficiency.

Description

Permanent magnet motor for battery car

Technical Field

The invention relates to the technical field of auxiliary equipment of an electromobile, in particular to a permanent magnet motor for the electromobile.

Background

The permanent magnet synchronous motor is a synchronous motor which generates a synchronous rotating magnetic field by permanent magnet excitation, the permanent magnet is used as a rotor to generate a rotating magnetic field, and a three-phase stator winding is reacted through an armature under the action of the rotating magnetic field to induce three-phase symmetrical current.

The existing permanent magnet motor cooling system mostly adopts air cooling, dust in the air can enter the interior of the permanent magnet motor through an air inlet in an end cover in the air cooling heat dissipation process, and the dust in the air can influence the magnetism of the permanent magnet motor due to the fact that the permanent magnet motor is internally provided with the permanent magnet, so that the operation efficiency of the permanent magnet motor is influenced, and the service life of the permanent magnet motor is shortened.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the permanent magnet motor for the battery car, which has the advantage of magnetic protection of a permanent magnet and solves the problems that the running efficiency of the permanent magnet motor is influenced and the service life of the permanent magnet motor is shortened because dust in air-cooled radiating air enters the permanent magnet motor in the conventional permanent magnet motor.

The invention provides the following technical scheme: a permanent magnet motor for a storage battery car comprises a casing and a rear end cover, wherein rotating shafts are movably sleeved at two ends inside the casing through bearings, two ends of each rotating shaft penetrate through and extend to the outer parts of two sides of the casing, a cooling fan is fixedly sleeved at one end, located outside the casing, of each rotating shaft, a sliding groove is formed in the side wall, close to one end of the cooling fan, of the casing, a clamping groove which is located inside the side wall of the casing and communicated with the casing is formed in one side of an inner cavity of the sliding groove, an L-shaped clamping block is fixedly installed at one end of the clamping groove, an installation groove is formed in the inner wall of one end of the rear end cover, an elastic clamping block is fixedly installed in the installation groove, a filter screen is movably installed in the rear end cover, an elastic cushion is sleeved at the outer part of one end of the rear end, the middle parts of the four fixing blocks are provided with through holes.

Preferably, the number of the sliding grooves is equal to that of the clamping grooves, and the four sliding grooves are distributed in the side wall of one end of the machine shell in an annular array.

Preferably, the outside fixed mounting of filter screen has four installation ears that are the annular array and distribute, and the installation ear is located between the bottom of elasticity fixture block and mounting groove inner chamber, the outside of filter screen and the inner wall contact of rear end cap but do not connect.

Preferably, the thickness value of the elastic pad is equal to the wall thickness of the casing, and when the casing is connected with the rear end cover, one side of the elastic pad is movably connected with one end of the casing.

Preferably, the shape of the through hole is matched with that of one end of the L-shaped fixture block, the size of the through hole is slightly larger than that of one end of the L-shaped fixture block, and when the shell is connected with the rear end cover, the inside of the through hole is movably sleeved with one end of the L-shaped fixture block.

Compared with the prior art, the invention has the following beneficial effects:

1. this permanent-magnet machine for storage battery car through the combined action of mounting groove and elasticity fixture block, is convenient for install the filter screen in the inside of rear end cap, prevents that the dust in the air from entering into permanent-magnet machine's inside and causing the influence to the permanent magnet to prolonged permanent-magnet machine's life, the dismantlement of the filter screen of being convenient for simultaneously is cleared up or is changed the filter screen to the dust on the filter screen, has accelerated permanent-magnet machine's operating efficiency.

2. This permanent-magnet machine for storage battery car through the combined action of spout, draw-in groove, L shape fixture block and through-hole to and under the cooperation of cushion is used, make and need not any instrument and can realize installation and dismantlement between casing and the rear end cap, can not make casing and rear end cap separation when not exerting force to casing and rear end cap simultaneously, improved the fastness and the reliability of connecting between casing and the rear end cap.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side schematic view of a structural rear end cap of the present invention;

fig. 3 is a right-side view of the housing of the present invention.

In the figure: 1. a housing; 2. a rotating shaft; 3. a cooling fan; 4. a chute; 5. a card slot; 6. an L-shaped fixture block; 7. a rear end cap; 8. mounting grooves; 9. an elastic clamping block; 10. a filter screen; 11. an elastic pad; 12. a fixed block; 13. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a permanent magnet motor for a battery car comprises a casing 1 and a rear end cover 7, wherein a rotating shaft 2 is movably sleeved at both ends inside the casing 1 through bearings, both ends of the rotating shaft 2 penetrate and extend to the outside of both sides of the casing 1, a cooling fan 3 is fixedly sleeved at one end of the rotating shaft 2, which is positioned outside the casing 1, a sliding groove 4 is formed inside the side wall of the casing 1, which is close to one end of the cooling fan 3, the number of the sliding grooves 4 is equal to the number of the clamping grooves 5, and four sliding grooves 4 are distributed inside the side wall of one end of the casing 1 in an annular array, the rear end cover 7 can be tightly connected with the casing 1 through the combined action of the sliding grooves 4 and the clamping grooves 5, and meanwhile, when the rear end cover 7 is disassembled, other special tools are not needed, the rear end cover 7 can be separated from the casing 1, the structure is simple and convenient to operate, the, one side of the inner cavity of the chute 4 is provided with a clamping groove 5 which is positioned inside the side wall of the casing 1 and is communicated with the casing 1, one end of the inner cavity of the clamping groove 5 is fixedly provided with an L-shaped clamping block 6, the inner wall of one end of the rear end cover 7 is provided with a mounting groove 8, the inside of the mounting groove 8 is fixedly provided with an elastic clamping block 9, the inside of the rear end cover 7 is movably provided with a filter screen 10, the outside of the filter screen 10 is fixedly provided with four mounting lugs which are distributed in an annular array manner, the mounting lugs are positioned between the elastic clamping block 9 and the bottom of the inner cavity of the mounting groove 8, the outside of the filter screen 10 is contacted with but not connected with the inner wall of the rear end cover 7, the common action of the mounting groove 8 and the elastic clamping block 9 is convenient for mounting the filter screen 10 inside the rear end cover 7, the dust in the air is prevented from entering the interior of the, the running efficiency of the permanent magnet motor is accelerated, the elastic pad 11 is movably sleeved outside one end of the rear end cover 7, the thickness value of the elastic pad 11 is equal to the wall thickness of the shell 1, when the shell 1 is connected with the rear end cover 7, one side of the elastic pad 11 is movably connected with one end of the shell 1, under the action of the elastic pad 11, after the fixed block 12 extends into the sliding groove 4, the elastic pad 11 is continuously extruded to enable the fixed block 12 to be rotated into the clamping groove 5, then the L-shaped fixture block 6 is clamped with the through hole 13 under the action of the restoring force of the elastic pad 11, four fixed blocks 12 which are distributed at equal intervals are fixedly arranged on the periphery of one end of the rear end cover 7 and one side of the elastic pad 11, through holes 13 are arranged in the middles of the four fixed blocks 12, the shape of the through hole 13 is matched with the shape of one end of the L-shaped fixture block 6, the size of, the inside of through-hole 13 cup joints with the one end activity of L shape fixture block 6, through the combined action of L shape fixture block 6 and through-hole 13 to and under the cooperation use of cushion 11, make can be with need not any instrument between casing 1 and the rear end cap 7 and install promptly and dismantle, can not make casing 1 and rear end cap 7 separate when not exerting force to casing 1 and rear end cap 7 simultaneously, improved the fastness and the reliability of connecting between casing 1 and the rear end cap 7.

The theory of operation, at first install filter screen 10 in the inside of rear end cap 7, then align rear end cap 7 and casing 1 and make fixed block 12 move to casing 1 inside along spout 4, make fixed block 12 continue to move and extrude cushion 11 in spout 4, then make fixed block 12 and draw-in groove 5 swing joint with rear end cap 7 anticlockwise rotation, at last loosen rear end cap 7 under the effect of cushion 11 restoring force, L shape fixture block 6 is connected casing 1 and rear end cap 7 with through-hole 13 joint, can.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a permanent-magnet machine for storage battery car, includes casing (1) and rear end cap (7), its characterized in that: the improved fan casing is characterized in that the rotating shaft (2) is sleeved at two ends of the inner part of the casing (1) through the bearing activity, the two ends of the rotating shaft (2) penetrate through and extend to the outer parts of two sides of the casing (1), the cooling fan (3) is fixedly sleeved at one end of the rotating shaft (2) which is positioned at the outer part of the casing (1), a sliding groove (4) is formed in the inner part of the side wall of one end of the casing (1) close to the cooling fan (3), a clamping groove (5) which is positioned in the inner part of the side wall of the casing (1) and communicated with the casing (1) is formed in one side of the inner cavity of the sliding groove (4), an L-shaped clamping block (6) is fixedly installed at one end of the inner cavity of the clamping groove (5), a mounting groove (8) is formed in the inner wall of one end of the, and the outside activity of rear end housing (7) one end cup joints cushion (11), one side fixed mounting that just is located cushion (11) around rear end housing (7) one end outside has four fixed blocks (12) that the equidistance distributes, four through-hole (13) have been seted up at the middle part of fixed block (12).

2. The permanent magnet motor for the battery car according to claim 1, characterized in that: the number of the sliding grooves (4) is equal to that of the clamping grooves (5) and is four.

3. The permanent magnet motor for the battery car according to claim 2, characterized in that: the four sliding chutes (4) are distributed in the side wall of one end of the machine shell (1) in an annular array.

4. The permanent magnet motor for the battery car according to claim 1, characterized in that: the outside fixed mounting of filter screen (10) has four installation ears that are the annular array and distribute, and the installation ear is located between the bottom of elasticity fixture block (9) and mounting groove (8) inner chamber, the outside of filter screen (10) and the inner wall contact of rear end cap (7) do not connect nevertheless.

5. The permanent magnet motor for the battery car according to claim 1, characterized in that: the thickness value of elastic pad (11) equals with the wall thickness of casing (1), when casing (1) is connected with rear end cover (7), one side and the one end swing joint of casing (1) of elastic pad (11).

6. The permanent magnet motor for the battery car according to claim 1, characterized in that: the shape of through-hole (13) and the shape phase-match of L shape fixture block (6) one end, and the size of through-hole (13) slightly is greater than the size of L shape fixture block (6) one end, works as when casing (1) is connected with rear end cover (7), the inside of through-hole (13) and the one end activity of L shape fixture block (6) cup joint.