Coreless DC motor without cogging force

Abstract

The utility model relates to the technical field of coreless direct-current motors, and discloses a coreless direct-current motor without cogging force, which comprises a coreless direct-current motor, the bottom of the coreless direct-current motor is fixedly connected with a fixed base, the inner part of the fixed base is in threaded connection with a fixed screw rod, and the fixed screw rod is in threaded connection with the cogging force. The surface of the fixing screw rod is in threaded connection with a limiting base plate; and the bottom of the fixing screw rod is in threaded connection with a mounting base. The limiting clamping plate is inserted into the mounting base, the connecting screw penetrates through the limiting supporting plate and the limiting clamping plate and extends into the fixing plate, the limiting clamping plate can be firmly fixed into the mounting base through the connecting mode, the motor is effectively limited, and meanwhile the motor is prevented from being damaged. The connection strength of the whole structure is further enhanced through the penetrating connection of the connecting screw rod, and the limiting clamping plate is prevented from loosening or disengaging in the operation process of the motor.

Description

Technical Field

[0001] This utility model relates to the field of coreless DC motor technology, and in particular to a coreless DC motor without cogging force. Background Technology

[0002] A coreless DC motor, also known as a cogging-free coreless motor, is a special type of DC motor. Its core feature is its coreless rotor structure. This design gives the motor high efficiency, high precision, and high sensitivity. The coreless DC motor, or hollow cup motor, is a type of DC motor without an iron core. Its rotor structure consists of hollow cup-shaped coil windings, which, together with the connecting plate and main shaft, form the rotor or stator. This design allows the motor to have higher power density and efficiency, while reducing torque hysteresis and cogging effects. The hollow cup motor achieves rotation through electromagnetic induction, and its working principle differs from that of ordinary DC motors. Because there is no iron core, the motor's physical structure is simpler. It mainly uses Hall effect sensors to detect the rotor's magnetic field signal to achieve electronic signal commutation, thus simplifying the physical structure.

[0003] An existing type of coreless DC motor without cogging force is not convenient for workers to install and fix after the motor is placed in a suitable working position. As a result, the motor is prone to loosening when it is working on the installed equipment for a long time, which affects the normal operation of the motor. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a coreless DC motor without cogging force.

[0005] This utility model is achieved by the following technical solution: a coreless DC motor without cogging force, including a coreless DC motor, a fixed base is fixedly connected to the bottom of the coreless DC motor, a fixed screw is connected to the internal thread of the fixed base, and a limit pad is connected to the surface thread of the fixed screw.

[0006] The bottom of the fixing screw is threadedly connected to a mounting base, the top of the mounting base is fixedly connected to a support base, the mounting base has an internal mounting slot, a limiting plate is inserted into the internal mounting slot, a limiting support plate is fixedly connected to the surface of the limiting plate, a connecting screw is threadedly connected to the internal of the limiting plate, a fixing plate is fixedly connected to the top of the mounting base, and a positioning hole is provided on the top of the mounting base.

[0007] As a further improvement to the above scheme, the number of fixing screws is set to four, and two screws are arranged in a group. The four fixing screws are symmetrically distributed around the coreless DC motor.

[0008] With the above technical solution, there are four fixing screws, and they are arranged in pairs, symmetrically distributed around the coreless DC motor. This symmetrical distribution makes the connection between the coreless DC motor and the mounting base more stable. During the operation of the motor, the vibration and force generated can be evenly distributed on each fixing point, reducing loosening or displacement caused by uneven force.

[0009] As a further improvement to the above solution, the fixing screw extends through the limiting pad and the fixing base to the interior of the mounting base and the positioning hole.

[0010] As a further improvement to the above solution, the number of the limiting pads is set to two, and the two limiting pads are symmetrically distributed on the left and right sides with the coreless DC motor as the center.

[0011] As a further improvement to the above solution, the top of the support base contacts the bottom surface of the coreless DC motor, and the number of the mounting slots is set to two, which are symmetrically distributed on the left and right sides with the coreless DC motor as the center.

[0012] With the above technical solution, there are two mounting slots, which are symmetrically distributed on the left and right sides with the coreless DC motor as the center. When the limiting plate is inserted into the mounting slot, this symmetrical structure can ensure that the limiting plate's limiting effect on the motor is evenly exerted on both sides, further enhancing the stability of the motor mounting structure.

[0013] As a further improvement to the above solution, the limiting plate is inserted into the interior of the mounting base, and the connecting screw extends through the limiting support plate and the limiting plate to the interior of the fixing plate.

[0014] As a further improvement to the above solution, the number of positioning holes is set to several, and the several positioning holes are symmetrically distributed around the mounting base.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model features a limiting plate inserted into the interior of the mounting base, with a connecting screw extending through the limiting support plate and the limiting plate to the interior of the fixing plate. This connection method allows the limiting plate to be firmly fixed inside the mounting base, effectively limiting the motor. At the same time, the through connection of the connecting screw further enhances the connection strength of the entire structure, preventing the limiting plate from loosening or coming off during motor operation.

[0017] This invention features a fixing screw that penetrates the limiting pad and the fixing base, extending into the mounting base and the positioning hole. This through-connection method creates a tight integrated structure between the coreless DC motor, the fixing base, and the mounting base. The positioning hole provides an accurate installation position for the fixing screw, improving installation precision and ensuring the accuracy of the motor's installation position. The top of the support base contacts the bottom surface of the coreless DC motor, providing additional support and sharing the motor's weight and any downward pressure that may occur during operation. This helps reduce pressure concentration between the motor and the fixing or mounting base, extending the service life of related components. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the frontal anatomical structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the disassembly structure of the coreless DC motor of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of this utility model from below;

[0022] Figure 5 This is a schematic diagram of the right-side structure of this utility model.

[0023] Explanation of key symbols:

[0024] 1. Coreless DC motor; 2. Fixed base; 3. Fixed screw; 4. Limiting pad; 5. Mounting base; 6. Support base; 7. Mounting slot; 8. Limiting plate; 9. Limiting support plate; 10. Connecting screw; 11. Fixing plate; 12. Positioning hole. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Example:

[0027] Please combine Figure 1-5 The embodiment of the ironless DC motor without cogging force includes an ironless DC motor 1, a fixed base 2 is fixedly connected to the bottom of the ironless DC motor 1, a fixed screw 3 is threadedly connected to the inside of the fixed base 2, and a limit pad 4 is threadedly connected to the surface of the fixed screw 3.

[0028] The bottom of the fixing screw 3 is threadedly connected to the mounting base 5, and the top of the mounting base 5 is fixedly connected to the support seat 6. The mounting base 5 has a mounting slot 7 inside, and a limiting plate 8 is inserted into the mounting slot 7. A limiting support plate 9 is fixedly connected to the surface of the limiting plate 8, and a connecting screw 10 is threadedly connected to the inside of the limiting plate 8. A fixing plate 11 is fixedly connected to the top of the mounting base 5, and a positioning hole 12 is opened on the top of the mounting base 5. By setting the limiting plate 8 to be inserted into the inside of the mounting base 5, and the connecting screw 10 passing through the limiting support plate 9 and the limiting plate 8 to the inside of the fixing plate 11, this connection method allows the limiting plate 8 to be firmly fixed in the mounting base 5, effectively limiting the motor. At the same time, the through connection of the connecting screw 10 further enhances the connection strength of the entire structure, preventing the limiting plate 8 from loosening or falling out during motor operation.

[0029] The number of fixing screws 3 is set to four, and two screws are grouped together. The four fixing screws 3 are symmetrically distributed on the left and right sides with the coreless DC motor 1 as the center.

[0030] There are four fixing screws 3, and they are arranged in pairs. They are symmetrically distributed around the coreless DC motor 1. This symmetrical distribution makes the connection between the coreless DC motor 1 and the fixing base 2 and the mounting base 5 more stable. During the operation of the motor, the vibration and force generated can be evenly distributed on each fixing point, reducing loosening or displacement caused by uneven force.

[0031] The fixing screw 3 passes through the limiting pad 4 and the fixing base 2 and extends into the mounting base 5 and the positioning hole 12.

[0032] The number of limit pads 4 is set to two, and the two limit pads 4 are symmetrically distributed on the left and right sides with the coreless DC motor 1 as the center.

[0033] The top of the support base 6 contacts the bottom surface of the coreless DC motor 1, and the number of mounting slots 7 is set to two, which are symmetrically distributed on the left and right sides with the coreless DC motor 1 as the center.

[0034] There are two mounting slots 7, which are symmetrically distributed on the left and right sides with the coreless DC motor 1 as the center. When the limiting plate 8 is inserted into the mounting slot 7, this symmetrical structure can ensure that the limiting plate 8 exerts its limiting effect on the motor evenly on both sides, further enhancing the stability of the motor mounting structure.

[0035] The limiting plate 8 is inserted into the interior of the mounting base 5. The connecting screw 10 extends through the limiting support plate 9 and the limiting plate 8 to the interior of the fixing plate 11. The fixing screw 3 extends through the limiting pad 4 and the fixing base 2 to the interior of the mounting base 5 and the positioning hole 12. This through-connection method makes the coreless DC motor 1, the fixing base 2 and the mounting base 5 form a tight whole. The presence of the positioning hole 12 provides an accurate installation position for the fixing screw 3, which helps to improve the installation accuracy and ensure the accuracy of the motor installation position. The top of the support 6 contacts the bottom surface of the coreless DC motor 1. The support 6 can provide additional support for the coreless DC motor 1, share the weight of the motor itself and the downward pressure that may be generated during operation. This helps to reduce the pressure concentration between the motor and the fixing base 2 or the mounting base 5 and extend the service life of related components.

[0036] The number of positioning holes 12 is set to several, and the several positioning holes 12 are symmetrically distributed around the mounting base 5.

[0037] The implementation principle of a coreless DC motor without cogging force in this application embodiment is as follows: A limiting plate 8 is inserted into the mounting base 5, and a connecting screw 10 extends through the limiting support plate 9 and the limiting plate 8 to the interior of the fixing plate 11. This connection method allows the limiting plate 8 to be firmly fixed in the mounting base 5, effectively limiting the motor. At the same time, the through connection of the connecting screw 10 further enhances the connection strength of the entire structure, preventing the limiting plate 8 from loosening or falling out during motor operation. A fixing screw 3 extends through the limiting pad 4 and the fixing base 2 to the mounting base 5 and the positioning hole 1. Inside 2, this through-connection method makes the coreless DC motor 1, the fixed base 2 and the mounting base 5 form a tight whole. The presence of the positioning hole 12 provides an accurate installation position for the fixing screw 3, which helps to improve the installation accuracy and ensure the accuracy of the motor installation position. The top of the support 6 contacts the bottom surface of the coreless DC motor 1. The support 6 can provide additional support for the coreless DC motor 1, share the weight of the motor itself and the downward pressure that may be generated during operation. This helps to reduce the pressure concentration between the motor and the fixed base 2 or the mounting base 5 and extend the service life of related components.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A cogging-free coreless DC motor, characterized by comprising: The system includes a coreless DC motor (1), the bottom of which is fixedly connected to a fixed base (2), the fixed base (2) is internally threaded with a fixed screw (3), and the surface of the fixed screw (3) is threaded with a limit pad (4). The bottom of the fixing screw (3) is threadedly connected to the mounting base (5), and the top of the mounting base (5) is fixedly connected to the support seat (6). The mounting base (5) has an installation slot (7) inside, and a limiting plate (8) is inserted into the mounting slot (7). A limiting support plate (9) is fixedly connected to the surface of the limiting plate (8). The limiting plate (8) has a connecting screw (10) threadedly connected to its interior. The top of the mounting base (5) is fixedly connected to the fixing plate (11), and the top of the mounting base (5) has a positioning hole (12).

2. A coreless DC motor with no cogging force as claimed in claim 1 characterized in that: The number of the fixing screws (3) is set to four, and each pair is a group of two. The four fixing screws (3) are symmetrically distributed on the left and right sides with the coreless DC motor (1) as the center.

3. The coreless DC motor without cogging force as described in claim 1, characterized in that: The fixing screw (3) extends through the limiting pad (4) and the fixing base (2) into the interior of the mounting base (5) and the positioning hole (12).

4. The coreless DC motor without cogging force as described in claim 1, characterized in that: The number of the limiting pads (4) is set to two, and the two limiting pads (4) are symmetrically distributed on the left and right sides with the coreless DC motor (1) as the center.

5. A coreless DC motor with no cogging force as claimed in claim 1, characterized in that: The top of the support base (6) is in contact with the bottom surface of the coreless DC motor (1), and the number of the mounting slots (7) is set to two, with the two mounting slots (7) symmetrically distributed on the left and right sides with the coreless DC motor (1) as the center.

6. A coreless DC motor without cogging force as described in claim 1, characterized in that: The limiting plate (8) is inserted into the interior of the mounting base (5), and the connecting screw (10) extends through the limiting support plate (9) and the limiting plate (8) to the interior of the fixing plate (11).

7. A coreless DC motor with no cogging force as claimed in claim 1, characterized in that: The number of positioning holes (12) is set to several, and the several positioning holes (12) are symmetrically distributed with the mounting base (5) as the center.

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