Five-phase permanent magnet auxiliary synchronous motor

Abstract

The utility model relates to a five-phase permanent magnet auxiliary synchronous motor, which structurally comprises a stator iron core and a rotor iron core, 40 stator teeth and 40 stator slots are alternately arranged on the stator iron core, the stator iron core is in a single-layer winding layout, a stator circuit is a five-phase winding, each winding part is provided with four slots, and two coil groups connected in series are formed. Six groups of V-shaped embedded permanent magnet structures are uniformly arranged on the rotor core, each group of V-shaped embedded permanent magnet structures is provided with magnetic barriers, the magnetic barriers comprise a left magnetic barrier, a middle magnetic barrier and a right magnetic barrier, and two permanent magnets are embedded in each group of V-shaped embedded permanent magnet structures to form a magnetic pole unit; the two permanent magnets in each magnetic pole unit are a permanent magnet A and a permanent magnet B which are symmetrical and form an included angle of 130 degrees. The motor provided by the utility model has the advantages that through the reasonably designed stator circuit and rotor assembly structure, the torque pulsation and the suspension force pulsation during the operation of the motor can be reduced, thereby improving the performance and the stability of the motor, and improving the production efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to a five phase permanent magnet auxiliary synchronous motor, concretely relates to a low torque five phase permanent magnet auxiliary synchronous motor. BACKGROUND

[0002] In prior art, the permanent magnet motor is influenced in stability during operation and control process due to the problems of cogging torque and torque fluctuation, and has high process complexity, which has high manufacturing cost and big technical implementation difficulty. UTILITY MODEL CONTENTS

[0003] The utility model provides a five phase permanent magnet auxiliary synchronous motor, which aims at overcoming the above-mentioned deficiencies in prior art, reducing torque ripple and suspension force ripple during motor operation, improving the performance and stability of the motor, and improving production efficiency.

[0004] The technical solution of the utility model: a five phase permanent magnet auxiliary synchronous motor, which comprises a stator core and a rotor core, wherein 40 stator teeth and 40 stator slots are alternately arranged on the stator core, and the stator core is arranged in a single-layer winding layout, the stator circuit is a five-phase winding, each winding part is allocated with four slots, and two series coil groups are formed. The above stator circuit structure can improve the performance of the motor and help to simplify the manufacturing and maintenance process of the motor.

[0005] Preferably, the two series coil groups are A winding part, B winding part, C winding part, D winding part and E winding part, and a winding part, b winding part, c winding part, d winding part and e winding part, wherein,

[0006] The A winding part is sequentially connected in a loop by a 32nd slot, a 2nd slot, a 12th slot and a 22nd slot, and the 32nd slot and the 2nd slot form a coil, and the 12th slot and the 22nd slot form another coil;

[0007] The B winding part is sequentially connected in a loop by a 36th slot, a 6th slot, a 16th slot and a 26th slot, and the 36th slot and the 6th slot form a coil, and the 16th slot and the 26th slot form another coil;

[0008] The C winding part is sequentially connected in a loop by a 40th slot, a 10th slot, a 20th slot and a 30th slot, and the 40th slot and the 10th slot form a coil, and the 20th slot and the 30th slot form another coil;

[0009] The D winding part is sequentially connected in a loop by a 4th slot, a 14th slot, a 24th slot and a 34th slot, and the 4th slot and the 14th slot form a coil, and the 24th slot and the 34th slot form another coil;

[0010] E winding part: composed of 8th slot, 18th slot, 28th slot, 38th slot in turn, 8th slot and 18th slot form a coil, 28th slot and 38th slot form another coil;

[0011] a winding part: composed of 31st slot, 1st slot, 11th slot, 21st slot in turn, 31st slot and 1st slot form a coil, 11th slot and 21st slot form another coil;

[0012] b winding part: composed of 35th slot, 5th slot, 15th slot, 25th slot in turn, 35th slot and 5th slot form a coil, 15th slot and 25th slot form another coil;

[0013] c winding part: composed of 39th slot, 9th slot, 19th slot, 29th slot in turn, 39th slot and 9th slot form a coil, 19th slot and 29th slot form another coil;

[0014] d winding part: composed of 3rd slot, 13th slot, 23rd slot, 33rd slot in turn, 3rd slot and 13th slot form a coil, 23rd slot and 33rd slot form another coil;

[0015] e winding part: composed of 7th slot, 17th slot, 27th slot, 37th slot in turn, 7th slot and 17th slot form a coil, 27th slot and 37th slot form another coil.

[0016] Preferably, the 31st slot of the a winding part, the 32nd slot of the A winding part, and the 30th slot of the C winding part are connected to each other;

[0017] the 35th slot of the b winding part, the 36th slot of the B winding part, and the 34th slot of the D winding part are connected to each other;

[0018] the 39th slot of the c winding part, the 40th slot of the C winding part, and the 38th slot of the E winding part are connected to each other;

[0019] the 3rd slot of the d winding part, the 4th slot of the D winding part, and the 22nd slot of the A winding part are connected to each other;

[0020] the 7th slot of the e winding part, the 8th slot of the E winding part, and the 26th slot of the B winding part are connected to each other.

[0021] According to the above structure, specific slot terminals are connected together to form the external wiring of the motor. It helps the phase configuration and current flow of the motor, ensuring efficient operation and performance optimization of the motor.

[0022] Preferably, the rotor core is uniformly provided with 6 groups of V-shaped embedded permanent magnet structures, each group of V-shaped embedded permanent magnet structure is provided with a magnetic barrier, the magnetic barrier includes a left magnetic barrier, a middle magnetic barrier and a right magnetic barrier, each group of V-shaped embedded permanent magnet structure is embedded with two permanent magnets, forming a magnetic pole unit, and the two permanent magnets in each magnetic pole unit are A permanent magnet and B permanent magnet which are symmetrical and form an angle of 130° with each other. The above rotor assembly structure can reduce torque ripple and suspension force ripple during motor operation, thereby improving the performance and stability of the motor, and saving material cost.

[0023] Preferably, the inner circle of the rotor core of the rotor core is uniformly provided with 6 inner circle waist-shaped holes, and a screw rod mounting hole is arranged between the outer sides of the adjacent two inner circle waist-shaped holes. The screw rod mounting hole is used for screw rod installation during die casting. The above structure can improve the heat dissipation and the anti-demagnetization ability of the permanent magnet of the motor.

[0024] The utility model discloses the advantages: through reasonable design stator circuit and rotor assembly structure, can significantly reduce the torque ripple and suspension force ripple during motor operation, thereby improving the performance and stability of the motor, improve production efficiency. The stator circuit structure can improve the performance of the motor, and also help to simplify the manufacturing and maintenance process of the motor. The rotor assembly structure helps to significantly reduce the torque ripple and suspension force ripple during motor operation, thereby improving the performance and stability of the motor. It also helps to save material cost. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the circuit diagram of the utility model five-phase permanent magnet auxiliary synchronous motor.

[0026] Figure 2 is the stator core, rotor core section view of the utility model five-phase permanent magnet auxiliary synchronous motor.

[0027] 1 in the drawing is the stator core, 11 is the stator tooth, 12 is the stator slot, 2 is the rotor core, 3 is the rotor magnetic barrier, 31 is the left magnetic barrier, 32 is the middle magnetic barrier, 33 is the right magnetic barrier, 4 is the permanent magnet, 41 is the A permanent magnet, 42 is the B permanent magnet, 5 is the inner circle waist-shaped hole, 6 is the screw rod mounting hole. DETAILED DESCRIPTION

[0028] The utility model will be further explained in detail in combination with examples and specific implementation.

[0029] As Figure 2 Shown, a kind of five-phase permanent magnet auxiliary synchronous motor, its structure includes stator core 1 and rotor core 2, wherein stator core 1 is alternatively provided with 40 stator teeth 11 and 40 stator slots 12, for single-layer winding layout, stator circuit is five-phase winding, and each winding part is allocated 4 slots, forming two series-connected coil groups.

[0030] As Figure 1 shown, A-E, a-e are 10 winding parts, two series of coil groups are A winding part, B winding part, C winding part, D winding part and E winding part, and a winding part, b winding part, c winding part, d winding part and e winding part, the specific connection mode is as follows:

[0031] A winding part: 32nd slot, 2nd slot, 12th slot, 22nd slot are connected in sequence. 32nd slot and 2nd slot form a coil, 12th slot and 22nd slot form another coil.

[0032] B winding part: 36th slot, 6th slot, 16th slot, 26th slot are connected in sequence. 36th slot and 6th slot form a coil, 16th slot and 26th slot form another coil.

[0033] C winding part: 40th slot, 10th slot, 20th slot, 30th slot are connected in sequence. 40th slot and 10th slot form a coil, 20th slot and 30th slot form another coil.

[0034] D winding part: 4th slot, 14th slot, 24th slot, 34th slot are connected in sequence. 4th slot and 14th slot form a coil, 24th slot and 34th slot form another coil.

[0035] E winding part: 8th slot, 18th slot, 28th slot, 38th slot are connected in sequence. 8th slot and 18th slot form a coil, 28th slot and 38th slot form another coil.

[0036] a winding part: 31st slot, 1st slot, 11th slot, 21st slot are connected in sequence. 31st slot and 1st slot form a coil, 11th slot and 21st slot form another coil.

[0037] b winding part: 35th slot, 5th slot, 15th slot, 25th slot are connected in sequence. 35th slot and 5th slot form a coil, 15th slot and 25th slot form another coil.

[0038] c winding part: 39th slot, 9th slot, 19th slot, 29th slot are connected in sequence. 39th slot and 9th slot form a coil, 19th slot and 29th slot form another coil.

[0039] d winding part: 3rd slot, 13th slot, 23rd slot, 33rd slot are connected in sequence. 3rd slot and 13th slot form a coil, 23rd slot and 33rd slot form another coil.

[0040] e winding part: composed of No. 7 slot, No. 17 slot, No. 27 slot, No. 37 slot in turn and connected end to end. No. 7 slot and No. 17 slot form a coil, and No. 27 slot and No. 37 slot form another coil.

[0041] In the winding connection design of the motor, specific slot lead-out ends are connected together to form the external wiring of the motor. The specific connection method is as follows:

[0042] a The No. 31 slot lead-out end of the winding part, the No. 32 slot lead-out end of the A winding part, and the No. 30 slot lead-out end of the C winding part are connected to each other.

[0043] b The No. 35 slot lead-out end of the winding part, the No. 36 slot lead-out end of the B winding part, and the No. 34 slot lead-out end of the D winding part are connected to each other.

[0044] c The No. 39 slot lead-out end of the winding part, the No. 40 slot lead-out end of the C winding part, and the No. 38 slot lead-out end of the E winding part are connected to each other.

[0045] d The No. 3 slot lead-out end of the winding part, the No. 4 slot lead-out end of the D winding part, and the No. 22 slot lead-out end of the A winding part are connected to each other.

[0046] e The No. 7 slot lead-out end of the winding part, the No. 8 slot lead-out end of the E winding part, and the No. 26 slot lead-out end of the B winding part are connected to each other.

[0047] The above connection method helps the phase configuration and current flow of the motor, ensuring efficient operation and performance optimization of the motor. Through this specific lead-out end connection, the winding of the motor can input and output current according to the predetermined design and control method.

[0048] As shown in Figure 1 The rotor core 2 is uniformly provided with 6 groups of V-shaped embedded permanent magnet structures, each group of V-shaped embedded permanent magnet structure is provided with a magnetic barrier 3, the magnetic barrier 3 includes a left magnetic barrier 31, a middle magnetic barrier 32 and a right magnetic barrier 33, each group of V-shaped embedded permanent magnet structure is embedded with two permanent magnets 4, forming a magnetic pole unit, the two permanent magnets in each magnetic pole unit are A permanent magnet 41 and B permanent magnet 42 which are symmetrical and form an angle of 130° with each other. The inner circle of the rotor core 2 is uniformly provided with 6 inner circle waist-shaped holes 5, and a screw mounting hole 6 is provided between the outer sides of the adjacent 2 inner circle waist-shaped holes 5. The screw mounting hole 6 is used for screw installation during die casting. The above structure can improve the heat dissipation and anti-demagnetization ability of the motor.

[0049] The above structure helps to reduce the torque ripple and suspension force ripple of the motor during operation, thereby improving the performance and stability of the motor and improving the production efficiency.

[0050] Each of the above components is of the prior art, and a person skilled in the art can use any model and prior design that can achieve the corresponding function.

[0051] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the inventive concept of the present application, a number of modifications and improvements can be made, which all fall within the protection scope of the present application.

Claims

1. A five-phase permanent magnet assisted synchronous motor, the structure of which comprises a stator core (1) and a rotor core (2), characterized in that, The stator core (1) is alternately provided with 40 stator teeth (11) and 40 stator slots (12), and is provided with single-layer winding layout, and the stator circuit is five-phase winding, each winding part is provided with 4 slots, and two series coil groups are formed.

2. A five-phase permanent-magnet-assisted synchronous electric machine as claimed in claim 1, characterized in that, The two series coil groups are A winding part, B winding part, C winding part, D winding part and E winding part, and a winding part, b winding part, c winding part, d winding part and e winding part, The A winding part is sequentially connected in a loop by 32nd slot, 2nd slot, 12th slot and 22nd slot, and the 32nd slot and the 2nd slot form a coil, and the 12th slot and the 22nd slot form another coil; The B winding part is sequentially connected in a loop by 36th slot, 6th slot, 16th slot and 26th slot, and the 36th slot and the 6th slot form a coil, and the 16th slot and the 26th slot form another coil; The C winding part is sequentially connected in a loop by 40th slot, 10th slot, 20th slot and 30th slot, and the 40th slot and the 10th slot form a coil, and the 20th slot and the 30th slot form another coil; The D winding part is sequentially connected in a loop by 4th slot, 14th slot, 24th slot and 34th slot, and the 4th slot and the 14th slot form a coil, and the 24th slot and the 34th slot form another coil; The E winding part is sequentially connected in a loop by 8th slot, 18th slot, 28th slot and 38th slot, and the 8th slot and the 18th slot form a coil, and the 28th slot and the 38th slot form another coil; The a winding part is sequentially connected in a loop by 31st slot, 1st slot, 11th slot and 21st slot, and the 31st slot and the 1st slot form a coil, and the 11th slot and the 21st slot form another coil; The b winding part is sequentially connected in a loop by 35th slot, 5th slot, 15th slot and 25th slot, and the 35th slot and the 5th slot form a coil, and the 15th slot and the 25th slot form another coil; The c winding part is sequentially connected in a loop by 39th slot, 9th slot, 19th slot and 29th slot, and the 39th slot and the 9th slot form a coil, and the 19th slot and the 29th slot form another coil; The d winding part is sequentially connected in a loop by 3rd slot, 13th slot, 23rd slot and 33rd slot, and the 3rd slot and the 13th slot form a coil, and the 23rd slot and the 33rd slot form another coil; The e winding part is sequentially connected in a loop by 7th slot, 17th slot, 27th slot and 37th slot, and the 7th slot and the 17th slot form a coil, and the 27th slot and the 37th slot form another coil.

3. A five-phase permanent-magnet-assisted synchronous electric machine as claimed in claim 2, characterized in that, The 31st slot of the a winding part, the 32nd slot of the A winding part and the 30th slot of the C winding part are connected with each other; The 35th slot of the b winding part, the 36th slot of the B winding part and the 34th slot of the D winding part are connected with each other; The 39th slot of the c winding part, the 40th slot of the C winding part and the 38th slot of the E winding part are connected with each other; The 3rd slot of the d winding part, the 4th slot of the D winding part and the 22nd slot of the A winding part are connected with each other; The 7th slot leading-out end of the winding part, the 8th slot leading-out end of the winding part, and the 26th slot leading-out end of the winding part are connected with each other.

4. A five-phase permanent-magnet-assisted synchronous electric machine according to any one of claims 1-3, characterized in that, The rotor core (2) is uniformly provided with six groups of V-shaped embedded permanent magnet structures, each of which is provided with a magnetic barrier (3) including a left magnetic barrier (31), a middle magnetic barrier (32) and a right magnetic barrier (33), and two permanent magnets (4) are embedded in each group of V-shaped embedded permanent magnet structures to form a magnetic pole unit, and the two permanent magnets in each magnetic pole unit are A permanent magnet (41) and B permanent magnet (42) which are symmetrical and have an included angle of 130°.

5. A five-phase permanent-magnet-assisted synchronous electric machine as claimed in claim 4, characterized in that, The rotor core (2) is uniformly provided with six groups of V-shaped embedded permanent magnet structures, each of which is provided with a magnetic barrier (3) including a left magnetic barrier (31), a middle magnetic barrier (32) and a right magnetic barrier (33), and two permanent magnets (4) are embedded in each group of V-shaped embedded permanent magnet structures to form a magnetic pole unit, and the two permanent magnets in each magnetic pole unit are A permanent magnet (41) and B permanent magnet (42) which are symmetrical and have an included angle of 130°.

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