CN211629949U

CN211629949U - Rotor of permanent magnet motor

Info

Publication number: CN211629949U
Application number: CN202020353908.1U
Authority: CN
Inventors: 彭金
Original assignee: Wuhan Daluo Technology Co ltd
Current assignee: Wuhan Daluo Technology Co ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-10-02
Anticipated expiration: 2030-03-19

Abstract

The utility model relates to the technical field of permanent magnet motors, and discloses a rotor of a permanent magnet motor, which comprises a fixed seat, a heat dissipation device, a clamping cover and screws, wherein the fixed seat is of an internal hollow cylindrical structure, a plurality of first through holes are arranged at the edge of the top of the fixed seat, the heat dissipation device is arranged at the bottom of the fixed seat, the bottom of the fixed seat is fixedly connected with the top of the heat dissipation device, the clamping cover is arranged at the top of the fixed seat, the clamping cover is of an annular structure, a plurality of second through holes are formed in the top of the clamping cover, the clamping cover is fixedly connected with the top of the fixed seat through screws, and the screw is inserted into the first through hole arranged on the top of the fixed seat to the top of the heat dissipation device, the heat dissipation device is fixedly connected with the bottom of the fixed seat through the screw, the fixed seat is arranged between the clamping cover and the heat dissipation device, and the screws are respectively inserted into the second through holes formed in the top of the clamping cover and the first through holes formed in the top of the fixing seat. The rotor of the permanent magnet motor avoids the phenomenon that the permanent magnet is demagnetized due to overhigh temperature inside the permanent magnet motor.

Description

Rotor of permanent magnet motor

Technical Field

The utility model relates to a permanent-magnet machine technical field specifically is a permanent-magnet machine's rotor.

Background

The rotor base body of the existing permanent magnet motor is an iron core, a permanent magnet is additionally arranged on the iron core, the permanent magnet is mainly glued with the inner wall of the motor in a sticking mode, the permanent magnet is stuck on the inner wall of the motor by adopting a sticky glue material in the sticking mode, the rotor made in the mode is easy to melt and fall off after long service life, and the permanent magnet is easy to fall off after high temperature is generated in continuous work of the motor.

For this reason, we have designed a rotor for a permanent magnet machine.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a permanent-magnet machine's rotor has solved permanent magnet and motor inner wall and has easily come off and the poor problem of the inside radiating effect of motor.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a permanent-magnet machine's rotor, includes fixing base, heat abstractor, card lid and screw, the fixing base is inside hollow cylinder structure, and the edge at fixing base top has seted up the first through-hole of a plurality of, and heat abstractor locates the fixing base bottom, fixing base bottom and heat abstractor top fixed connection, and the card lid locates the fixing base top, the card lid is the loop configuration, and the card lid top has seted up a plurality of second through-hole, the card lid passes through screw and fixing base top fixed connection, and the screw alternates inside to the heat abstractor top of the first through-hole that the fixing base top was seted up, heat abstractor passes through screw and fixing base bottom fixed connection, and the fixing base is located between card lid and the heat abstractor, and the screw alternates inside second through-hole that the card lid top was seted up and the first through-.

Further, the fixing base includes first shell, gim peg and radiator-grid, first shell is inside cavity cylinder type structure, and the inside a plurality of gim peg that is equipped with of first shell, the gim peg links to each other with first shell inner wall is fixed, and gim peg and first shell be integrated into one piece, first through-hole has been seted up at the gim peg top, and first through-hole runs through to the gim peg bottom, inside the first through-hole that the screw interlude gim peg top was seted up, and the inside screw thread that has seted up of first through-hole, screw and first through-hole mesh mutually, first shell bottom is located to the radiator-grid, and radiator-grid and first shell bottom fixed connection.

Furthermore, the card lid includes baffle and buckle, the baffle is the loop configuration, and the baffle top is equipped with a plurality of buckle, buckle and baffle fixed connection, and baffle and buckle integrated into one piece, a plurality of second through-hole has been seted up at the baffle top, and the second through-hole inner wall has seted up screw thread, the baffle passes through screw and fixing base top fixed connection, and inside the second through-hole that the screw interlude baffle top was seted up, the screw meshed with the second through-hole that the baffle top was seted up.

Furthermore, the heat dissipation device comprises a second shell, a support column, a bearing and fan blades, the second shell is of an internal cavity structure, the support column is arranged in the second shell, the bottom of the support column is connected with the inner wall of the second shell, the support column penetrates through the inside of the bearing, the support column is of an internal hollow structure, and the top of the supporting column is provided with a blind hole, two sides of the inner wall of the blind hole arranged on the top of the supporting column are respectively provided with a groove, two groups of the grooves are oppositely arranged, the supporting column is movably connected with the second shell through a bearing, and the outer surface of the supporting column is provided with a plurality of fan blades which are fixedly connected with the supporting column, the fan blades are movably connected with the second shell through the supporting column, the top of the second shell is provided with a plurality of third through holes, and the second shell is fixedly connected with the bottom of the fixed seat through a screw which is inserted into a third through hole formed in the top of the second shell.

Further, inside first bracing piece and the second bracing piece of being equipped with of second shell, and the both ends of first bracing piece and second bracing piece respectively with the inner wall fixed connection of second shell, the middle part of first bracing piece and the middle part fixed connection of second bracing piece, and first bracing piece and second bracing piece are cross-shaped alternately, first bracing piece has seted up the fourth through hole with second bracing piece cross position, and the support column passes through bearing and fourth through hole swing joint, bearing and fourth through hole inner wall fixed connection.

Furthermore, the inner walls of the first through hole, the second through hole and the third through hole are respectively provided with threads, the threads arranged on the inner walls of the first through hole, the second through hole and the third through hole are consistent with the threads arranged on the outer surface of the screw, a rubber pad is arranged between the screw and the fixed seat, and the rubber pad is made of rubber.

The utility model has the advantages that:

1. the utility model discloses a, through the fixing base, mutually supporting of heat abstractor and card lid, the screw alternates respectively inside second through-hole that the card lid top was seted up and the first through-hole that the fixing base top was seted up to realized fixing base, heat abstractor and card lid three fixed connection, and through mutually supporting of fixing base and card lid, made its effectual permanent magnet fixed connection in fixing base inner wall, thereby the effectual permanent magnet body that has solved when permanent magnet motor moves is thrown away's problem, the effectual permanent magnet motor stability in use that has promoted.

2. The utility model discloses a, through setting up the gim peg to the fixing base, make its effectual permanent magnet firmly fix at the fixing base inner wall, and because the inside a plurality of gim peg that sets up of fixing base, form the draw-in groove between gim peg and the gim peg, the permanent magnet is located and is formed in the draw-in groove between gim peg and the gim peg, thereby further strengthened the firm between permanent magnet and the fixing base inner wall, the combination of permanent magnet and fixing base has been guaranteed, effectual permanent magnet and fixing base connection stability have been promoted, and simultaneously, when further having guaranteed that the rotor rotates, the permanent magnet can not thrown away.

3. The utility model discloses a, through setting up heat abstractor to the fixing base bottom, and the fixing base bottom sets up the radiator-grid, inside the blind hole that rotor bottom interlude and support column top were seted up, because the support column passes through bearing and second shell swing joint, it is rotatory to drive the support column through the rotor, make the flabellum that its support column surface set up rotate, thereby realize heat abstractor to the inside heat dissipation of fixing base, the inside radiating effect of effectual promotion permanent-magnet machine, and further avoided can not be too high because of the inside temperature of permanent-magnet machine, and the permanent magnet that leads to loses magnetism phenomenon.

Drawings

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

FIG. 2 is a schematic view of the fixing base of the present invention;

FIG. 3 is a schematic structural view of the card cover and the heat sink of the present invention;

fig. 4 is a schematic view of the internal structure of the heat dissipation device of the present invention;

fig. 5 is a schematic view of a top view structure of the heat dissipation device of the present invention.

In the figure: 1. a fixed seat; 2. a heat sink; 3. a cover is clamped; 4. a screw; 5. a first housing; 6. a fixing bolt; 7. a first through hole; 8. a heat-dissipating web; 9. a baffle plate; 10. a second through hole; 11. a second housing; 12. a support pillar; 13. a bearing; 14. a fan blade; 15. a third through hole; 16. a first support bar; 17. a second support bar; 18. and a fourth via.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to FIGS. 1-5: a rotor of a permanent magnet motor comprises a fixed seat 1, a heat dissipation device 2, a clamping cover 3 and screws 4, wherein the fixed seat 1 is of an internal hollow cylindrical structure, the edge of the top of the fixed seat 1 is provided with a plurality of first through holes 7, the heat dissipation device 2 is arranged at the bottom of the fixed seat 1, the bottom of the fixed seat 1 is fixedly connected with the top of the heat dissipation device 2, the clamping cover 3 is arranged at the top of the fixed seat 1, the clamping cover 3 is of an annular structure, the top of the clamping cover 3 is provided with a plurality of second through holes 10, the clamping cover 3 is fixedly connected with the top of the fixed seat 1 through the screws 4, the screws 4 penetrate through the first through holes 7 arranged at the top of the fixed seat 1 to the top of the heat dissipation device 2, the heat dissipation device 2 is fixedly connected with the bottom of the fixed seat 1 through the screws 4, the fixed seat 1 is arranged between the clamping cover 3 and the heat dissipation device 2, and the screws 4 respectively, the clamping cover 3 comprises a baffle 9 and a buckle, the baffle 9 is of an annular structure, a plurality of buckles are arranged at the top of the baffle 9, the buckle is fixedly connected with the baffle 9, the baffle 9 and the buckles are integrally formed, a plurality of second through holes 10 are formed at the top of the baffle 9, threads are formed on the inner walls of the second through holes 10, the baffle 9 is fixedly connected with the top of the fixing base 1 through screws 4, the screws 4 penetrate through the second through holes 10 formed at the top of the baffle 9, the screws 4 are meshed with the second through holes 10 formed at the top of the baffle 9, through the mutual matching of the fixing base 1, the heat dissipation device 2 and the clamping cover 3, the screws 4 respectively penetrate through the second through holes 10 formed at the top of the clamping cover 3 and the first through holes 7 formed at the top of the fixing base 1, so that the fixing base 1, the heat dissipation device 2 and the clamping cover 3 are fixedly connected, and through the mutual matching, make its effectual permanent magnet fixed connection in fixing base 1 inner wall to the effectual permanent magnet that has solved permanent magnet motor operation is thrown away the problem, the effectual permanent magnet motor stability in use that has promoted.

Further, the fixing base 1 comprises a first shell 5, a fixing bolt 6 and a heat dissipation net 8, the first shell 5 is of an internal cavity cylindrical structure, a plurality of fixing bolts 6 are arranged inside the first shell 5, the fixing bolts 6 are fixedly connected with the inner wall of the first shell 5, the fixing bolts 6 and the first shell 5 are integrally formed, a first through hole 7 is formed in the top of each fixing bolt 6, the first through hole 7 penetrates through the bottom of each fixing bolt 6, the screw 4 penetrates through the first through hole 7 formed in the top of each fixing bolt 6, threads are formed in the first through hole 7, the screw 4 is meshed with the first through hole 7, the heat dissipation net 8 is arranged at the bottom of the first shell 5, the heat dissipation net 8 is fixedly connected with the bottom of the first shell 5, the fixing bolt 6 is arranged on the fixing base 1, so that the permanent magnet is effectively and firmly fixed on the inner wall of the fixing base 1, and the fixing bolts 6 are arranged inside the fixing base 1, form the draw-in groove between gim peg 6 and the gim peg 6, the permanent magnet is located and is formed in the draw-in groove between gim peg 6 and the gim peg 6 to further strengthen the firm between permanent magnet and the 1 inner wall of fixing base, guaranteed the combination of permanent magnet and fixing base 1, effectual permanent magnet and 1 connection stability of fixing base of having promoted, simultaneously, when further having guaranteed that the rotor rotates, the permanent magnet can not thrown away.

Further, the heat dissipation device 2 includes a second housing 11, a support column 12, a bearing 13 and fan blades 14, the second housing 11 is of an internal cavity structure, the support column 12 is disposed inside the second housing 11, the bottom of the support column 12 is connected to the inner wall of the second housing 11, the support column 12 penetrates through the bearing 13, the support column 12 is of an internal hollow structure, the top of the support column 12 is provided with a blind hole, two sides of the inner wall of the blind hole formed in the top of the support column 12 are respectively provided with a groove, two groups of the grooves are oppositely disposed, the support column 12 is movably connected to the second housing 11 through the bearing 13, the outer surface of the support column 12 is provided with a plurality of fan blades 14, the fan blades 14 are fixedly connected to the support column 12, the fan blades 14 are movably connected to the second housing 11 through the support column 12, the top of the second housing 11 is provided with a plurality of third through holes 15, and the second housing, the screw 4 penetrates through a third through hole 15 formed in the top of the second shell 11, a first supporting rod 16 and a second supporting rod 17 are arranged in the second shell 11, two ends of the first supporting rod 16 and the second supporting rod 17 are respectively fixedly connected with the inner wall of the second shell 11, the middle part of the first supporting rod 16 is fixedly connected with the middle part of the second supporting rod 17, the first supporting rod 16 and the second supporting rod 17 are crossed in a cross shape, a fourth through hole 18 is formed in the crossed position of the first supporting rod 16 and the second supporting rod 17, the supporting rod 12 is movably connected with the fourth through hole 18 through a bearing 13, the bearing 13 is fixedly connected with the inner wall of the fourth through hole 18, the bottom of the fixing seat 1 is provided with the heat dissipation device 2, the bottom of the fixing seat 1 is provided with the heat dissipation net 8, the bottom of the rotor penetrates through the inside a blind hole formed in the top of the supporting rod 12, and the supporting rod 12 is movably connected with the second, drive support column 12 rotatory through the rotor, make flabellum 14 that its support column 12 surface set up rotate to realize heat abstractor 2 to the inside heat dissipation of fixing base 1, the inside radiating effect of effectual promotion permanent-magnet machine, and further avoided can not be because of permanent-magnet machine inside high temperature, and the permanent magnet that leads to loses the magnetism phenomenon.

Furthermore, the inner walls of the first through hole 7, the second through hole 10 and the third through hole 15 are respectively provided with threads, the threads on the inner walls of the first through hole 7, the second through hole 10 and the third through hole 15 are consistent with the threads on the outer surface of the screw 4, and a rubber pad is arranged between the screw 4 and the fixed seat 1 and is made of rubber.

To sum up, when the utility model is used, the screw 4 is respectively inserted into the second through hole 10 arranged on the top of the card cover 3 and the first through hole 7 arranged on the top of the fixing base 1 through the mutual matching of the fixing base 1, the heat sink 2 and the card cover 3, thereby realizing the fixed connection of the fixing base 1, the heat sink 2 and the card cover 3, and the fixing base 1 and the card cover 3 are mutually matched to effectively fix the permanent magnet on the inner wall of the fixing base 1, thereby effectively solving the problem that the permanent magnet is thrown away when the permanent magnet motor operates, effectively improving the stability of the permanent magnet motor, effectively and firmly fixing the permanent magnet on the inner wall of the fixing base 1 by arranging the fixing bolt 6 on the fixing base 1, and forming the clamping groove between the fixing bolt 6 and the fixing bolt 6 because the fixing bolts 6 are arranged in the fixing base 1, the permanent magnet is arranged in the clamping groove between the fixing bolt 6 and the fixing bolt 6, thereby further enhancing the stability between the permanent magnet and the inner wall of the fixed seat 1, ensuring the combination of the permanent magnet and the fixed seat 1, effectively improving the connection stability of the permanent magnet and the fixed seat 1, meanwhile, the permanent magnet can not be thrown out when the rotor rotates, the heat dissipation device 2 is arranged at the bottom of the fixed seat 1, the bottom of the fixed seat 1 is provided with a heat dissipation net 8, the bottom of the rotor is inserted into a blind hole arranged at the top of the support column 12, because the supporting column 12 is movably connected with the second casing 11 through the bearing 13, the rotor drives the supporting column 12 to rotate, so that the fan blades 14 arranged on the outer surface of the supporting column 12 rotate, thereby realizing the heat dissipation of the heat dissipation device 2 to the inside of the fixed seat 1, effectively improving the heat dissipation effect of the inside of the permanent magnet motor, and further avoids the phenomenon that the permanent magnet is demagnetized due to the overhigh temperature in the permanent magnet motor.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a permanent-magnet machine's rotor, includes fixing base (1), heat abstractor (2), card lid (3) and screw (4), its characterized in that: the fixing seat (1) is of an internal hollow cylindrical structure, a plurality of first through holes (7) are formed in the edge of the top of the fixing seat (1), the heat dissipation device (2) is arranged at the bottom of the fixing seat (1), the bottom of the fixing seat (1) is fixedly connected with the top of the heat dissipation device (2), the clamping cover (3) is arranged at the top of the fixing seat (1), the clamping cover (3) is of an annular structure, a plurality of second through holes (10) are formed in the top of the clamping cover (3), the clamping cover (3) is fixedly connected with the top of the fixing seat (1) through screws (4), the screws (4) penetrate through the first through holes (7) formed in the top of the fixing seat (1) to the top of the heat dissipation device (2), the heat dissipation device (2) is fixedly connected with the bottom of the fixing seat (1) through the screws (4), the fixing seat (1) is arranged between the clamping cover (3), and the screw (4) is respectively inserted into a second through hole (10) formed in the top of the clamping cover (3) and a first through hole (7) formed in the top of the fixed seat (1).

2. The rotor of a permanent magnet electric machine according to claim 1, characterized in that: the fixing seat (1) comprises a first shell (5), a fixing bolt (6) and a radiating net (8), wherein the first shell (5) is of a cylindrical structure with a hollow cavity inside, and a plurality of fixing bolts (6) are arranged in the first shell (5), the fixing bolts (6) are fixedly connected with the inner wall of the first shell (5), the fixing bolt (6) and the first shell (5) are integrally formed, the top of the fixing bolt (6) is provided with a first through hole (7), the first through hole (7) penetrates to the bottom of the fixing bolt (6), the screw (4) penetrates through the first through hole (7) formed in the top of the fixing bolt (6), the first through hole (7) is internally provided with threads, the screw (4) is meshed with the first through hole (7), the heat dissipation net (8) is arranged at the bottom of the first shell (5), and the heat dissipation net (8) is fixedly connected with the bottom of the first shell (5).

3. The rotor of a permanent magnet electric machine according to claim 1, characterized in that: the clamping cover (3) comprises a baffle (9) and a buckle, the baffle (9) is of an annular structure, the top of the baffle (9) is provided with a plurality of buckles, the buckle is fixedly connected with the baffle (9), the baffle (9) and the buckle are integrally formed, a plurality of second through holes (10) are formed in the top of the baffle (9), the inner wall of each second through hole (10) is provided with a thread, the baffle (9) is fixedly connected with the top of the fixing seat (1) through a screw (4), the screw (4) penetrates through the second through holes (10) formed in the top of the baffle (9), and the screw (4) is meshed with the second through holes (10) formed in the top of the baffle (9).

4. The rotor of a permanent magnet electric machine according to claim 1, characterized in that: the heat dissipation device (2) comprises a second shell (11), a support column (12), a bearing (13) and fan blades (14), the second shell (11) is of an internal cavity structure, the support column (12) is arranged inside the second shell (11), the bottom of the support column (12) is connected with the inner wall of the second shell (11), the support column (12) penetrates through the inside of the bearing (13), the support column (12) is of an internal hollow structure, a blind hole is formed in the top of the support column (12), grooves are respectively formed in two sides of the inner wall of the blind hole formed in the top of the support column (12), two groups of grooves are oppositely arranged, the support column (12) is movably connected with the second shell (11) through the bearing (13), a plurality of fan blades (14) are arranged on the outer surface of the support column (12), the fan blades (14) are fixedly connected with the support column (12), and the fan blades (14) are movably connected with the second shell (11) through the support column, a plurality of third through holes (15) are formed in the top of the second shell (11), the second shell (11) is fixedly connected with the bottom of the fixing seat (1) through screws (4), and the screws (4) penetrate through the third through holes (15) formed in the top of the second shell (11).

5. The rotor of a permanent magnet electric machine according to claim 4, characterized in that: second shell (11) is inside to be equipped with first bracing piece (16) and second bracing piece (17), and the both ends of first bracing piece (16) and second bracing piece (17) respectively with the inner wall fixed connection of second shell (11), the middle part of first bracing piece (16) and the middle part fixed connection of second bracing piece (17), and first bracing piece (16) are the cross with second bracing piece (17) and intersect, fourth through-hole (18) have been seted up to first bracing piece (16) and second bracing piece (17) cross position, and support column (12) pass through bearing (13) and fourth through-hole (18) swing joint, bearing (13) and fourth through-hole (18) inner wall fixed connection.

6. The rotor of a permanent magnet electric machine according to claim 1, characterized in that: the inner walls of the first through hole (7), the second through hole (10) and the third through hole (15) are respectively provided with threads, the threads formed on the inner walls of the first through hole (7), the second through hole (10) and the third through hole (15) are consistent with the threads formed on the outer surface of the screw (4), and a rubber pad is arranged between the screw (4) and the fixed seat (1) and is made of rubber.