Special motor structure with anti-failure redundant structure

Abstract

The utility model discloses a special motor structure with an anti-failure redundant structure, and particularly relates to the field of special motors, which comprises a motor main shell, the bottom of the motor main shell is connected with an installation connection base, one side of the motor main shell is connected with a junction box, and the junction box is connected with an anti-failure redundant structure. The side, away from the motor main shell, of the junction box is connected with a standby power supply, one end of the motor main shell is connected with a heat dissipation shell, the end, away from the heat dissipation shell, of the motor main shell is connected with a motor redundant shell, and the end, away from the motor main shell, of the motor redundant shell is connected with a driving shaft connecting block. A rotor is arranged in the motor main shell, and one end of the rotor is connected with a driving shaft; according to the utility model, two groups of driving structures are arranged, when one group of driving structure of the motor is powered off, the motor can still work normally, and when an external power supply is suddenly powered off, the motion state of the motor can still be kept, so that enough time for recovering power supply can be provided for the motor.

Description

Technical Field

[0001] The utility model relates to the field of special motors, and more specifically, to a special motor structure with a failure-proof redundant structure. Background Art

[0002] With the adjustment and optimization of the structures of medium and small-sized motor products, special-purpose motors will become the focus of the development of the motor industry, and their market demand and development speed will lead in this industry.

[0003] After retrieval, the existing patent (application number: CN201310747603.3) discloses a novel motor structure, including a motor housing with openings at both ends, a stator assembly sleeved in the motor housing, and a rotor assembly rotatably arranged in the stator assembly. At one end of the motor housing, a cover plate support mechanism is clamped and fixedly connected. At the other end of the motor housing opposite to the cover plate support mechanism, an inner plug fixed insert block is arranged on the axial end face of the stator assembly and can move axially along the motor housing. A dovetail adjustment mechanism for pushing the inner plug fixed insert block to move axially along the motor housing to adjust the distance between the inner plug fixed insert block and the cover plate support mechanism is arranged on the outside of the motor housing; a connection mechanism for fixing the inner plug fixed insert block relative to the motor housing after the movement is completed is also included. This novel motor structure can realize the adjustment of the axial dimension of the motor housing to change the motor parameters by adjusting the number of motor iron core punching sheets, which is convenient for the platform development of the motor. The inventor found the following problems in the process of realizing the present utility model:

[0004] The existing motor structure does not have a redundant structure and a structure for preventing the failure of the redundant structure. When the special motor is running, it cannot ensure that the system can continue to operate or maintain when a motor component fails, and there may be significant losses due to the sudden power-off of the motor;

[0005] Therefore, a special motor structure with a failure-proof redundant structure is proposed for the above problems. Summary of the Utility Model

[0006] In order to overcome the above-mentioned defects of the prior art, the present utility model provides a special motor structure with a failure-proof redundant structure to solve the problems raised in the above background art.

[0007] To achieve the above object, the present utility model provides the following technical solution: A special motor structure with a failure-proof redundant structure, including a main motor housing, an installation connection base is connected to the bottom of the main motor housing, and a junction box is connected to one side of the main motor housing. A power connection port is arranged on one side of the junction box, and a backup power supply is connected to the side of the junction box away from the main motor housing;

[0008] One end of the main motor housing is connected to a heat dissipation housing, and one end of the main motor housing away from the heat dissipation housing is connected to a redundant motor housing. One end of the redundant motor housing away from the main motor housing is connected to a drive shaft connection block. A rotor is arranged in the main motor housing, and one end of the rotor is connected to a drive shaft.

[0009] Preferably, a first stator winding group is arranged in the main motor housing, a second stator winding group is arranged in the redundant motor housing, and an insulating connection block is arranged between the first stator winding group and the second stator winding group. A heat dissipation plate is arranged at the connection between the main motor housing and the heat dissipation housing.

[0010] Preferably, the drive shaft is connected to the drive shaft connection block, and a drive connection bearing is arranged at the connection between the drive shaft and the drive shaft connection block. One end of the stator away from the drive connection bearing is connected to a fan blade connection shaft.

[0011] Preferably, the fan blade connection shaft is connected to the heat dissipation housing, and a rotational displacement sensor is arranged at the connection between the fan blade connection shaft and the heat dissipation plate. One end of the fan blade connection shaft away from the rotor is connected to a heat dissipation fan.

[0012] Preferably, the rotor includes a first rotor winding and a second rotor winding, and an insulating rotating connection cylinder is connected between the first rotor winding and the second rotor winding.

[0013] Preferably, the first rotor winding is arranged in the main motor housing, the second rotor winding is arranged in the redundant motor housing, and the insulating rotating connection cylinder is connected in the insulating connection block. A connection bearing is arranged at the connection between the insulating rotating connection cylinder and the insulating connection block.

[0014] The technical effects and advantages of the present utility model:

[0015] 1. Compared with the prior art, this special motor structure with a failure-proof redundant structure is provided with two sets of drive structures. When one set of drive structures of the motor loses power, the motor can still operate normally. When the first rotor winding fails and cannot operate normally, power can be supplied to the second stator winding group, and the second rotor winding can be driven to rotate through the second stator winding group, enabling the motor to operate normally.

[0016] 2. Compared with the prior art, this special motor structure with a failure-proof redundant structure can still maintain the motion state of the motor when the external power supply suddenly cuts off, so as to give the motor enough time to resume power supply. When the external power supply cuts off, the first stator winding group or the second stator winding group can be powered by a backup power supply for a short time. Description of the Drawings

[0017] Figure 1This is a schematic structural diagram of the whole utility model.

[0018] Figure 2 This is a schematic structural diagram of the junction box of the utility model.

[0019] Figure 3 This is a schematic structural diagram of the side section at the main motor housing of the utility model.

[0020] Figure 4 This is a schematic structural diagram of the rotor of the utility model.

[0021] Figure 5 This is a schematic structural diagram of the heat dissipation housing of the utility model.

[0022] The reference numerals are: 1, main motor housing; 2, heat dissipation housing; 3, redundant motor housing; 4, mounting connection base; 5, junction box; 6, rotor; 7, drive shaft; 11, first stator winding group; 12, insulating connection block; 13, connecting bearing; 21, heat dissipation plate; 31, drive shaft connection block; 32, second stator winding group; 51, power connection port; 52, backup power supply; 61, first rotor winding; 62, second rotor winding; 63, insulating rotating connection cylinder; 64, fan blade connecting shaft; 65, rotational displacement sensor; 66, heat dissipation fan; 71, drive connecting bearing. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] As shown in the attached Figures 1 to 2 A special motor structure with a failure-proof redundant structure, including a main motor housing 1, a mounting connection base 4 is connected to the bottom of the main motor housing 1, and a junction box 5 is connected to one side of the main motor housing 1. A power connection port 51 is arranged on one side of the junction box 5, and a backup power supply 52 is connected to the side of the junction box 5 away from the main motor housing 1;

[0026] One end of the main motor housing 1 is connected to a heat dissipation housing 2, and one end of the main motor housing 1 away from the heat dissipation housing 2 is connected to a redundant motor housing 3. One end of the redundant motor housing 3 away from the main motor housing 1 is connected to a drive shaft connection block 31, and a rotor 6 is arranged in the main motor housing 1. One end of the rotor 6 is connected to a drive shaft 7.

[0027] Among them: The main motor housing 1 is connected to the working place through the mounting connection base 4, and can be connected to an external power supply through the power connection port 51 on the junction box 5. When the external power supply is cut off, it can be powered by the backup power supply 52 for a short time to prevent losses caused by sudden power outages affecting the operation of the special motor. When the motor is working, the rotor 6 drives the drive shaft 7 to rotate.

[0028] Embodiment 2

[0029] Based on Embodiment 1, the solution in Embodiment 1 is further refined and introduced in combination with the following specific working methods, as Figures 1 to 5 shown, for details see the following description:

[0030] As a preferred embodiment, a first stator winding group 11 is arranged in the main motor housing 1, a second stator winding group 32 is arranged in the redundant motor housing 3, and an insulating connection block 12 is arranged between the first stator winding group 11 and the second stator winding group 32. A heat dissipation plate 21 is arranged at the connection between the main motor housing 1 and the heat dissipation housing 2; further, the junction box 5 and the backup power supply 52 are both connected to the first stator winding group 11 and the second stator winding group 32, and the rotor 6 is driven to rotate by energizing the first stator winding group 11 or the second stator winding group 32. When the motor is working, the rotor 6 drives the drive shaft 7 to rotate, and the first stator winding group 11 and the second stator winding group 32 are isolated by the insulating connection block 12, so as to avoid mutual interference between the first stator winding group 11 and the second stator winding group 32, and the heat generated by the rotor 6 during movement is dissipated to the heat dissipation housing 2 through the heat dissipation plate 21.

[0031] As a preferred embodiment, the drive shaft 7 is connected to the drive shaft connection block 31, and a drive connection bearing 71 is arranged at the connection between the drive shaft 7 and the drive shaft connection block 31. One end of the rotor 6 away from the drive connection bearing 71 is connected to the fan connection shaft 64; further, the drive shaft 7 rotates in the drive shaft connection block 31 through the drive connection bearing 71, and the fan connection shaft 64 is driven to rotate during the rotation of the rotor 6.

[0032] As a preferred embodiment, the fan connection shaft 64 is connected to the heat dissipation housing 2, and a rotational displacement sensor 65 is arranged at the connection between the fan connection shaft 64 and the heat dissipation plate 21. One end of the fan connection shaft 64 away from the rotor 6 is connected to the heat dissipation fan 66; further, the heat dissipation fan 66 is driven to rotate for heat dissipation by the fan connection shaft 64, and the movement condition of the rotor 6 is detected by the rotational displacement sensor 65 during the operation of the rotor 6.

[0033] As a preferred embodiment, the rotor 6 includes a first rotor winding 61 and a second rotor winding 62, and an insulating rotating connection cylinder 63 is connected between the first rotor winding 61 and the second rotor winding 62; further, the first rotor winding 61 and the second rotor winding 62 are connected through the insulating rotating connection cylinder 63 and are isolated by the insulating rotating connection cylinder 63.

[0034] As a preferred embodiment, the first rotor winding 61 is arranged in the main motor housing 1, the second rotor winding 62 is arranged in the redundant motor housing 3, and the insulating rotating connection cylinder 63 is connected in the insulating connection block 12. A connecting bearing 13 is arranged at the connection part of the insulating rotating connection cylinder 63 and the insulating connection block 12; further, the first stator winding group 11 drives the first rotor winding 61 to rotate, and the second stator winding group 32 can drive the second rotor winding 62 to rotate, and the insulating rotating connection cylinder 63 rotates in the insulating connection block 12 through the connecting bearing 13.

[0035] The working process of the present utility model is as follows: The main motor housing 1 is connected to the working place through the installation connection base 4, and can be connected to an external power source through the power connection port 51 on the junction box 5. Power is supplied to the first stator winding group 11 through the power source. The first stator winding group 11 drives the first rotor winding 61 to rotate, thereby driving the rotor 6 to rotate, and the rotor 6 drives the drive shaft 7 to rotate. During the working process of the rotor 6, the motion condition of the rotor 6 is detected by the rotational displacement sensor 65.

[0036] And when the stator speed becomes smaller under the control range, that is, when it is judged that the first rotor winding 61 fails and cannot operate normally, power can be supplied to the second stator winding group 32, and the second stator winding group 32 can drive the second rotor winding 62 to rotate, so that the motor can work normally. When the external power supply is cut off, the first stator winding group 11 or the second stator winding group 32 can be powered by the backup power supply 52 for a short time to prevent the work of the special motor from being affected due to sudden power failure and causing losses;

[0037] The heat generated by the rotor 6 during movement is dissipated to the heat dissipation housing 2 through the heat dissipation plate 21. The drive shaft 7 rotates in the drive shaft connection block 31 through the drive connection bearing 71. During the rotation of the rotor 6, the fan blade connecting shaft 64 is driven to rotate, and the fan blade connecting shaft 64 drives the heat dissipation fan 66 to rotate for heat dissipation. The first stator winding group 11 and the second stator winding group 32 are isolated by the insulating connection block 12, so as to avoid mutual interference between the first stator winding group 11 and the second stator winding group 32, and the first rotor winding 61 and the second rotor winding 62 are isolated by the insulating rotating connection cylinder 63 to prevent mutual influence. The above is the working principle of the special motor structure with an anti-failure redundant structure.

Claims

1. A special motor structure with a failure-proof redundant structure, including a main motor housing (1), characterized in that: The bottom of the main motor housing (1) is connected to an installation connection base (4), and one side of the main motor housing (1) is connected to a junction box (5). A power connection port (51) is provided on one side of the junction box (5), and a backup power supply (52) is connected to the side of the junction box (5) away from the main motor housing (1). One end of the main motor housing (1) is connected to a heat dissipation housing (2), and the end of the main motor housing (1) away from the heat dissipation housing (2) is connected to a motor redundant housing (3). A drive shaft connection block (31) is connected to the end of the motor redundant housing (3) away from the main motor housing (1). A rotor (6) is provided inside the main motor housing (1), and a drive shaft (7) is connected to one end of the rotor (6).

2. The special motor structure with an anti-failure redundant structure according to claim 1, characterized in that: A first stator winding group (11) is provided inside the main motor housing (1), a second stator winding group (32) is provided inside the motor redundant housing (3), and an insulating connection block (12) is provided between the first stator winding group (11) and the second stator winding group (32). A heat dissipation plate (21) is provided at the connection between the main motor housing (1) and the heat dissipation housing (2).

3. A special motor structure with an anti-failure redundant structure according to claim 2, characterized in that: The drive shaft (7) is connected into the drive shaft connection block (31), and a drive connection bearing (71) is provided at the connection between the drive shaft (7) and the drive shaft connection block (31). A fan blade connection shaft (64) is connected to the end of the rotor (6) away from the drive connection bearing (71).

4. A special motor structure with an anti-failure redundant structure according to claim 3, characterized in that: The fan blade connection shaft (64) is connected into the heat dissipation housing (2), and a rotational displacement sensor (65) is provided at the connection between the fan blade connection shaft (64) and the heat dissipation plate (21). A heat dissipation fan (66) is connected to the end of the fan blade connection shaft (64) away from the rotor (6).

5. A special motor structure with an anti-failure redundant structure according to claim 2, characterized in that: The rotor (6) includes a first rotor winding (61) and a second rotor winding (62), and an insulating rotating connection cylinder (63) is connected between the first rotor winding (61) and the second rotor winding (62).

6. A special motor structure with a failure-proof redundant structure according to claim 5, characterized in that: The first rotor winding (61) is provided inside the main motor housing (1), the second rotor winding (62) is provided inside the motor redundant housing (3), and the insulating rotating connection cylinder (63) is connected inside the insulating connection block (12). A connection bearing (13) is provided at the connection between the insulating rotating connection cylinder (63) and the insulating connection block (12).

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