CN217307392U - Brushless motor - Google Patents

Abstract

The utility model discloses a brushless motor, including the casing, wherein: a rotor assembly is arranged at the axis inside the shell, and a stator assembly is arranged outside the rotor assembly; the utility model discloses a circuit board, circuit board and stator module's iron core, circuit board and stator module's the circuit board, the last hall groove that holds hall element and place on the circuit board that is equipped with of stator module, just the circuit board passes through locating component and confirms the mounted position with stator module, the utility model discloses a locating component's setting can confirm the mounted position of circuit board and stator module's iron core, only need with the circuit board joint on stator module's line frame, when the installation like this, as long as guarantee the accuracy of circuit board position through locating component, just need not to adjust repeatedly the circuit board position, just can realize the best position between hall element and the iron core on the circuit board to realize the best working property of motor.

Description

Brushless motor

Technical Field

The utility model belongs to the technical field of the motor, concretely relates to brushless motor.

Background

The brushless dc motor is a small-sized and high-efficiency motor, is widely used in various fields, and is highly popular in various industries.

In the brushless motor, the hall element arranged on the circuit board and the iron core of the stator assembly need to be adjusted to the optimal position so as to realize the optimization of the motor power.

However, the current circuit board is usually installed on the motor end plate, in actual operation, it is difficult to adjust the position between the hall element and the iron core to the optimum, and a certain deviation always exists between the hall element and the iron core, which is not favorable for achieving the optimum working performance of the motor, and causes a certain energy loss.

Moreover, the wire inside the existing brushless motor is easy to scatter after being led out from the motor shell, and the brushless motor usually generates certain jitter when moving, so that the problem that the wire falls off or is disconnected easily occurs in the moving process of the motor, and the later maintenance is troublesome.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a brushless motor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a brushless electric machine comprising a housing, wherein:

end covers are arranged on two sides of the shell, and wire outlet assemblies are arranged at wire outlet holes of the end covers;

a rotor assembly is arranged at the axis inside the shell, and a stator assembly is arranged outside the rotor assembly;

the stator assembly is provided with a circuit board, the stator assembly is provided with a Hall groove for accommodating a Hall element on the circuit board, and the circuit board determines the installation position of the circuit board and the stator assembly through the positioning assembly;

the circuit board is provided with welding spots, and welding parts are arranged at the welding spots.

Preferably, the wire outlet assembly comprises a wire outlet ring arranged at the wire outlet hole, a clamping piece for clamping the outlet wire is arranged in the wire outlet ring, and the clamping piece can elastically deform under the action of external force.

Preferably, the clamping member includes an elastic member disposed obliquely, the elastic member can be elastically deformed under an external force, and the elastic member is provided with a wire guiding member extending outwards.

Preferably, the two sides of the rotor assembly are respectively connected with the end covers at the two sides through bearings, and the two sides of the rotor assembly are provided with limiting steps a for limiting the bearings.

Preferably, the rotor subassembly includes the pivot, the pivot overcoat is equipped with the magnet steel, just be equipped with in the pivot and carry out spacing step b to the magnet steel position.

Preferably, the stator assembly comprises an iron core surrounding the rotor assembly, wire racks are correspondingly arranged on two sides of the iron core, and the wire racks on the two sides are combined with each other to form a limiting groove for limiting the iron core.

Preferably, the two sides of the wire rack are respectively provided with a wire rack groove for limiting the outer ring and the inner ring of the iron core.

Preferably, the positioning assembly comprises a positioning column arranged on the coil holder of the rotor assembly and a positioning groove arranged on the circuit board, and the positioning column can be clamped in the positioning groove to achieve the effect of determining the installation position of the circuit board.

Preferably, the welding part comprises a connecting plate connected with the welding spot, and the connecting plate is provided with an installation plate; the mounting panel both sides correspond and are equipped with the U-shaped plate, and two the opening of U-shaped plate corresponds the setting.

Preferably, a plurality of limiting columns are arranged on the wire frame, and mounting grooves arranged on adjacent limiting columns can be mutually combined to form a Hall groove.

The technical effects and advantages of the utility model, this brushless motor:

1. the installation positions of the circuit board and the iron core of the stator assembly can be determined through the arrangement of the positioning assembly, and the circuit board is only required to be clamped on the wire frame of the stator assembly, so that when the circuit board is installed, the optimal position between the Hall element on the circuit board and the iron core can be realized without repeatedly adjusting the position of the circuit board as long as the positioning assembly ensures the accuracy of the position of the circuit board, and the optimal working performance of the motor is realized;

2. through the arrangement of the outgoing line assembly, the lead led out of the motor shell can be elastically clamped, the problem that the outgoing line falls off or is disconnected due to accidents in the working process of the motor is solved, the function of outgoing line bunching of the motor can be conveniently and quickly realized, the outgoing line fixing time is effectively reduced, and the installation reliability and the working efficiency are improved;

3. through the setting of welding, can press from both sides the being qualified for the next round of competitions of circuit board in the U-shaped board of welding, can fix the lead-out wire of circuit board, can prevent to be qualified for the next round of competitions and warp, the effect that plays the protection to being qualified for the next round of competitions of circuit board that fracture can be furthered in motor working process, the life of extension motor to the setting of welding can make things convenient for being qualified for the next round of competitions of circuit board, makes the wiring change the operation.

Drawings

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

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic structural diagram of the outlet assembly of the present invention;

fig. 4 is an exploded view of the present invention;

fig. 5 is a schematic view of a specific structure of the stator assembly of the present invention.

In the figure: 1. a housing; 2. an end cap; 3. a wire outlet assembly; 4. a rotor assembly; 5. a stator assembly; 6. a circuit board; 7. a positioning assembly; 8. a welding part; 9. a bearing;

21. a wire outlet hole;

31. coil discharging; 32. a clamping member; 33. an elastic member; 34. a wire guide;

41. a limiting step a; 42. a rotating shaft; 43. magnetic steel; 44. a limiting step b;

51. an iron core; 52. a wire frame; 53. a limiting groove; 54. a wire rack groove; 55. a limiting column; 56. mounting grooves; 57. a Hall cell;

61. a Hall element; 62. welding spots;

71. a positioning column; 72. positioning a groove;

81. a connecting plate; 82. mounting a plate; 83. a U-shaped plate; 84. and (4) opening.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 5 of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a brushless motor as shown in fig. 1-5, including casing 1, wherein:

the motor casing is characterized in that end covers 2 are arranged on two sides of the motor casing 1, a wire outlet assembly 3 is arranged at a wire outlet hole 21 of each end cover 2, and the wire outlet assembly 3 is convenient for motor wire outlet, so that wiring is easier to operate.

A rotor assembly 4 is arranged at the axis inside the machine shell 1, a stator assembly 5 is arranged outside the rotor assembly 4, the rotor assembly 4 penetrates through the stator assembly 5, and the front end of the rotor assembly 4 penetrates through the front end cover 2.

Be equipped with circuit board 6 on stator module 5, be equipped with the hall groove 57 that holds hall element 61 and place on the circuit board 6 on stator module 5 the utility model discloses in, be in the fixed hall element 61 that sets up in the bottom of circuit board 6, because the inside of circuit board 6 has the line of walking, hall element 61's pin can be through the hole welding who sets up on the circuit board, the field staff can be as required sheathe in at hall element 61's hall angle and pin department and put in the protective sheath, the protection hall angle can not be buckled, the rupture, and the hall groove 57 quantity that sets up on stator module 5 corresponds the setting each other with hall element 61 the utility model discloses in, hall groove 57 quantity also is three, can guarantee through hall element 57's setting that hall element 61 fixes in stator module 5.

The circuit board 6 is determined by the positioning component 7 and is positioned at the mounting position of the stator component 5, the circuit board 6 can be mounted by the positioning component 7 to play a role in guiding, the circuit board 6 is convenient to mount, the position of the circuit board 6 can be ensured to be accurate, the position of the circuit board 6 does not need to be adjusted repeatedly, the optimal position between the Hall element 61 on the circuit board 6 and the iron core 51 can be realized, and the optimal working performance of the motor is realized.

Be equipped with solder joint 62 on the circuit board 6, can realize hall element 61's hall angle and solder joint 62 circuit connection through the circuit wiring on the circuit board 6, solder joint 62 can draw forth circuit board 6, makes circuit board 6 draw forth the point and can not sheltered from by stator module 5, conveniently connects, and solder joint 62 department is equipped with a welding 8, through the setting of a welding 8, can fix being qualified for the next round of competitions of circuit board 6, can prevent to be qualified for the next round of competitions and take place distortion, fracture in motor working process, can be further play the effect of protection to being qualified for the next round of competitions of circuit board 6, the life of extension motor to a setting of a welding 8 can make things convenient for being qualified for the next round of competitions of circuit board 6, makes the wiring change the operation.

The utility model discloses in, solder joint 62 sets up at 6 tops of circuit board, and solder joint 62 quantity sets up to 5.

Specifically, the coil of being qualified for the next round of competitions 31 of subassembly 3 including locating the wire hole 21 department, the coil of being qualified for the next round of competitions 31 is the silica gel material, can protect being qualified for the next round of competitions, prevents to cut broken line skin, be equipped with in the coil of being qualified for the next round of competitions and carry out the holder 32 of centre gripping, just holder 32 can take place elastic deformation under the exogenic action, and holder 32 can carry out the elasticity centre gripping to the wire that motor casing 1 body was drawn forth, prevents to be qualified for the next round of competitions and leads to the problem that drops or breaks off in the accident takes place in motor working process.

Specifically, holder 32 is including the elastic component 33 that the slope set up, because the wire that the motor casing 1 body was drawn forth from inside to outside, elastic component 33 sets up for the slope from bottom to top like this, when the wire was qualified for the next round of competitions, elastic component 33 can take place elastic deformation and outwards expand under the exogenic action, it is better qualified for the next round of competitions to make the wire through elastic component 33 deformation, and can be qualified for the next round of competitions to press from both sides tight sealed to the motor through elastic rebound of elastic component 33, prevent to be qualified for the next round of competitions and take place the unexpected problem that leads to droing or breaking off in motor working process, just outward extension is equipped with wire guide 34 on the elastic component 33, and wire guide 34 can lead to the motor line outgoing direction for arc structural design, can make things convenient for, the quick function of realization motor line bunch of being qualified for the next round of competitions, can effectively reduce the dead time of being qualified for the next round of competitions, has improved installation reliability and work efficiency.

The utility model discloses in, the motor is qualified for the next round of competitions the outside can the cladding set up the elastic rubber cover, like this when the 33 elasticity centre gripping motors of elastic component are qualified for the next round of competitions, can be qualified for the next round of competitions to the motor through the elastic rubber cover and protect.

Specifically, rotor subassembly 4 both sides are connected with both sides end cover 2 respectively through bearing 9, just rotor subassembly 4 both sides are equipped with carries out spacing step a41 to bearing 9, and spacing step a41 can be fixed the position of 42 both sides bearing 9 of countershaft.

Specifically, rotor subassembly 4 includes pivot 42, the pivot 42 overcoat is equipped with magnet steel 43, and in order to ensure the firm of 4 installations of rotor subassembly, it is fixed to glue through the structure between pivot 42 and the magnet steel 43, just be equipped with in the pivot 42 and carry out spacing step b44 to magnet steel 43 position, spacing step b44 can be fixed magnet steel 43 position in pivot 42.

Specifically, stator module 5 is including the iron core 51 that encircles the setting of rotor subassembly 4, the correspondence of iron core 51 both sides is equipped with line frame 52, and line frame 52 can insert inside iron core 51, can keep apart iron core 51, guarantees the inside insulating properties of iron core 51, and both sides line frame 52 makes up each other and forms and carries out spacing groove 53 to iron core 51, and both sides line frame 52 can make up each other and carry out the chucking to middle iron core 51, makes iron core 51 fixed set up in the spacing groove 53 that both sides line frame 52 made up into.

Specifically, two sides of the wire frame 52 are respectively provided with a wire frame 52 groove for respectively limiting the outer ring and the inner ring of the iron core 51, the wire frame 52 grooves on the two wire frames 52 can be mutually combined to form a limiting groove 53, and the limiting grooves 53 formed by combination are divided into two types, one type is arranged on the outer wall of the wire frame 52 and is formed by mutually combining the outer wall of an insulating sheet on the wire frame 52 and the outer part of the wire frame 52, and the outer ring of the iron core 51 can be limited; the other type is arranged on the inner wall of the wire frame 52, and is formed by mutually combining the inner wall of an insulating sheet on the wire frame 52 and the inner part of the wire frame 52, and can limit the inner ring of the iron core 51.

Specifically, locating component 7 is including locating reference column 71 on rotor subassembly 4 line frame 52 and locating circuit board 6's constant head tank 72, just reference column 71 can block and locate the effect of confirming the mounted position of circuit board 6 that reaches in the constant head tank 72, locates in the constant head tank 72 through reference column 71 card, can confirm the mounted position of circuit board 6 and stator module 5's iron core 51, guarantees the accuracy of circuit board 6 position, realizes the best position between hall element 61 and the iron core 51 on the circuit board 6 to realize the best working property of motor.

In the present invention, the positioning column 71 is provided for the automatic coil inserting apparatus to pull the wire.

And, the utility model discloses in, through locating reference column 71 card in the constant head tank 72, constant head tank 72 can hold and spacing reference column 71, makes constant head tank 72 can prevent that reference column 71 from taking place rotary displacement when holding the installation setting of reference column 71, and firm for further guarantee installation, can fix reference column 71 in constant head tank 72 with gluing.

Specifically, the welding part 8 includes a connecting plate 81 connected to the welding point 62, the welding point 62 may be designed as a contact point or as a slot, when the welding point 62 is designed as a contact point, the connecting plate 81 directly contacts and is fixedly connected to the welding point 62, and when the welding point 62 is designed as a contact point slot, the connecting plate 81 can be inserted into the welding point 62 and is fixedly connected to the welding point 62 because the connecting plate 81 is designed as a flat structure.

Be equipped with mounting panel 82 on connecting plate 81, the correspondence of mounting panel 82 both sides is equipped with U-shaped plate 83, and two the opening 84 of U-shaped plate 83 corresponds the setting, through the setting of U-shaped plate 83, can press from both sides the lead-out wire in U-shaped plate 83 respectively, can fix the lead-out wire of circuit board 6, can play the effect of protection to being qualified for the next round of competitions of circuit board 6, the life of extension motor to welding 8's setting can make things convenient for being qualified for the next round of competitions of circuit board 6, makes the wiring change the operation.

Specifically, be equipped with a plurality of spacing posts 55 on the line frame 52, the circumference array is provided with a plurality of spacing posts 55 on the line frame 52, can carry on spacingly to circuit board 6 through the setting of the inside spacing post 55 of line frame 52, guarantees the mounted position of circuit board, and adjacent the mounting groove 56 that sets up on the spacing post 55 can make up each other and form hall groove 57, and the junction of two adjacent spacing posts 55 forms the breach, and the breach is hall groove 57 promptly, and hall groove 57 sets up with hall element 61 corresponds each other, can guarantee that hall element 61 fixes inside line frame 52, can not touch iron core 51.

The utility model discloses in, be provided with the tang on end cover 2 and the casing 1, end cover 2 of 1 both sides of casing can be through tang and 1 fastening connection of casing, the joint strength of setting up multiplicable casing 1 through the tang, and be provided with the screw on casing 1, it also is provided with the screw to correspond the screw on the casing 1 on the end cover 2 of 1 both sides of casing, can realize end cover 2 and the fixed connection of casing 1 through screw cooperation screw, can lock the end cover 2 at casing 1 and casing 1 both ends through the screw, prevent that motor casing 1 and 2 pine of both sides end cover from taking off, motor installation stability has effectively been ensured.

The utility model discloses in, the tang department of 1 inner wall both sides of casing inlays and is equipped with the enhancement clamping ring, and the setting of strengthening the clamping ring can improve the inside intensity of motor, guarantees the holistic intensity of motor.

The utility model discloses in, it is provided with a plurality of insulating pieces still to circle array on the line frame 52, and the insulating piece is U-shaped structural design to the insulating piece is thin wall structural design, and inside line frame 52 inserted iron core 51 through the insulating piece, can keep apart iron core 51, guarantees the inside insulating properties of iron core 51 respectively.

The utility model discloses in, pivot 42 both sides are equipped with bearing 9, pivot 42 through the bearing 9 of both sides setting respectively with 2 internal connections of both sides end cover, make pivot 42's axial tension change into both sides bearing 9 dispersion atress by original pivot 42 atress through setting up of both sides bearing 9, and be equipped with the installation space who holds the bearing 9 installation in end cover 2 is inside, and be equipped with on the installation space and carry out spacing step c to bearing 9 position, spacing step c can be to carrying on spacingly, can prevent effectively that pivot 42 from loosening and taking off, make the motor operation more reliable, and spacing through carrying on bearing 9, can guarantee that pivot 42 is located same axis position, can not take place the position deviation in the operation process.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (10)

1. A brushless motor comprising a casing (1), characterized in that:

end covers (2) are arranged on two sides of the shell (1), and outlet assemblies (3) are arranged at outlet holes (21) of the end covers (2);

a rotor assembly (4) is arranged at the axis inside the machine shell (1), and a stator assembly (5) is arranged outside the rotor assembly (4);

the stator assembly (5) is provided with a circuit board (6), the stator assembly (5) is provided with a Hall groove (57) for accommodating a Hall element (61) on the circuit board (6), and the circuit board (6) is determined by a positioning assembly (7) to be mounted on the stator assembly (5);

the circuit board (6) is provided with a welding spot (62), and a welding part (8) is arranged at the welding spot (62).

2. A brushless electric machine according to claim 1, wherein: the outgoing line assembly (3) comprises an outgoing line ring (31) arranged at the position of the outgoing line hole (21), a clamping piece (32) for clamping the outgoing line is arranged in the outgoing line ring (31), and the clamping piece (32) can elastically deform under the action of external force.

3. A brushless electric machine according to claim 2, wherein: the clamping piece (32) comprises an elastic piece (33) which is obliquely arranged, the elastic piece (33) can be elastically deformed under the action of external force, and a wire guide piece (34) extends outwards from the elastic piece (33).

4. A brushless electric machine according to claim 1, wherein: the two sides of the rotor assembly (4) are respectively connected with the end covers (2) at the two sides through bearings (9), and the two sides of the rotor assembly (4) are provided with limiting steps a (41) for limiting the bearings (9).

5. A brushless electric machine according to claim 1, wherein: rotor subassembly (4) are including pivot (42), pivot (42) overcoat is equipped with magnet steel (43), just be equipped with in pivot (42) and carry out spacing step b (44) to magnet steel (43) position.

6. A brushless electric machine according to claim 1, wherein: stator module (5) are including iron core (51) around rotor subassembly (4) setting, iron core (51) both sides correspondence is equipped with line frame (52), and both sides line frame (52) make up each other and form and carry out spacing groove (53) to iron core (51).

7. A brushless electric machine according to claim 6, wherein: and wire frame (52) grooves for limiting the outer ring and the inner ring of the iron core (51) respectively are arranged on two sides of the wire frame (52) respectively.

8. A brushless electric machine according to claim 1, wherein: the positioning assembly (7) comprises a positioning column (71) arranged on the coil holder (52) of the rotor assembly (4) and a positioning groove (72) arranged on the circuit board (6), and the positioning column (71) can be clamped in the positioning groove (72) to achieve the effect of determining the installation position of the circuit board (6).

9. A brushless electric machine according to claim 1, wherein: the welding part (8) comprises a connecting plate (81) connected with the welding spot (62), and a mounting plate (82) is arranged on the connecting plate (81);

the mounting plate (82) both sides correspond and are equipped with U-shaped board (83), and two opening (84) of U-shaped board (83) correspond the setting.

10. A brushless electric machine according to claim 6 or 7 or 8, characterized in that: the wire frame (52) is provided with a plurality of limiting columns (55), and mounting grooves (56) arranged on adjacent limiting columns (55) can be mutually combined to form a Hall groove (57).

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