High-speed motor with anti-drop insulating rotor connecting end

Abstract

The utility model provides a high-speed motor with an anti-drop insulation rotor connecting end, which belongs to the field of high-speed motors and comprises a rotor body, an inner groove is arranged in the rotor body, a rotor iron core is inserted in the inner groove, locking assemblies for fixing the rotor iron core in the inner groove are arranged in two sides of the rotor iron core, and the locking assemblies are arranged in the inner groove. When the rotor iron core needs to be installed, the rotor iron core is directly inserted into the inner groove in the rotor body, the open groove is aligned with the clamping groove, the knob is twisted to rotate to drive the screw rod at the rear end to rotate, and the screw rod drives the push rod to move backwards in the push groove through thread engagement arranged on the outer wall. The limiting plates are driven to move outwards in the limiting grooves to generate tension potential energy for the springs, and meanwhile, the clamping plates are inserted outwards into the aligned clamping grooves, so that the rotor iron core can be firmly fixed in the inner grooves, and the situation that the rotor iron core is loosened due to interference installation under the influence of external force is avoided.

Description

Technical Field

[0001] This utility model relates to the field of high-speed motors, and more specifically, to a high-speed motor with an anti-detachment insulated rotor connection end. Background Technology

[0002] During motor assembly, a gap must be maintained between the stator and rotor. To meet the requirements of the mounting sleeve, this gap must be increased. The air gap contains fundamental and higher harmonic components. For a rotating motor, the presence of harmonics significantly reduces the overall energy conversion efficiency. Furthermore, harmonic currents or voltages in the stator windings, rotor circuit, and core generate additional losses, leading to a decrease in the motor's overall energy conversion efficiency.

[0003] A search revealed that Chinese patent CN207732574U discloses "a high-speed motor," comprising a stator, a rotor, a housing, and a sleeve disposed between the stator and the rotor, the sleeve being fixed to the housing. The characteristic feature is that a metal film is further disposed on the sleeve. This invention utilizes the shielding properties of the metal film on the sleeve to effectively prevent harmonic interference and improve the overall energy conversion efficiency of the high-speed motor. The invention also inserts the sleeve into a slot on the housing, which better secures the sleeve, preventing it from shifting due to vibration and further improving the overall energy conversion efficiency of the high-speed motor. However, it still has the following drawbacks:

[0004] (1) The existing motor rotor assembly is installed inside the rotor body by interference fit. During the high-speed rotation of the rotor, the stress will exceed the support force of the interference fit, which will cause the rotor assembly to loosen and affect the stability of the rotor assembly.

[0005] (2) The existing motor rotor cannot help the airflow, and will increase air resistance when rotating, affecting the rotational stability.

[0006] Therefore, we have made improvements and proposed a high-speed motor with an anti-detachment insulated rotor connection end. Utility Model Content

[0007] The purpose of this invention is to address the problem that existing motor rotor assemblies, which are installed inside the rotor body via an interference fit, experience stress exceeding the support force of the interference fit during high-speed rotor rotation. This leads to loosening of the rotor assembly and an inability of the existing motor rotor to facilitate airflow, resulting in increased air resistance during rotation.

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0009] A high-speed motor with an anti-detachment insulated rotor connection end is provided to improve the above-mentioned problems.

[0010] The present invention is as follows:

[0011] The rotor body includes an inner groove, a rotor core is inserted into the inner groove, and locking components for fixing the rotor core in the inner groove are provided on both sides of the rotor core.

[0012] The locking assembly includes a push groove and a locking groove. A screw is installed inside the push groove, and a knob is connected to the front end of the screw.

[0013] As a preferred technical solution of this utility model, a push rod is fitted on the outer wall of the screw, a side groove is opened on the side wall of the push groove, and a side plate is installed on the side wall of the push rod.

[0014] As a preferred technical solution of this utility model, a slot is formed on the outer side wall of the rear end of the push groove, a retaining plate is embedded in the slot, a limiting groove is formed on the side wall of the slot, and a limiting plate is installed on the side wall of the retaining plate.

[0015] As a preferred technical solution of this utility model, the side wall of the limiting plate is connected to a spring, and the side wall of the inner groove is provided with a slot for the locking plates to cooperate with each other.

[0016] As a preferred technical solution of this utility model, the front and rear ends of the rotor core are provided with marking grooves, and the marking grooves are V-shaped.

[0017] As a preferred technical solution of this utility model, the cross-sectional dimensions of the side plate and the cross-sectional dimensions of the side groove match each other.

[0018] As a preferred technical solution of this utility model, the limiting plate is fixedly connected to one end of the spring, and the other end of the spring is fixedly connected to the side wall of the limiting groove.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] In the solution of this utility model:

[0021] 1. With the screw, push rod, side plate, clamping plate, limiting plate and spring set up, when the rotor core needs to be installed, the rotor core is directly inserted into the inner groove inside the rotor body, so that the groove and the clamping groove are aligned. Turn the knob to make it rotate and drive the screw at the rear end to rotate. The screw engages with the thread on the outer wall and drives the push rod to move backward in the push groove. With the side plate embedded in the side groove, the push rod moves vertically and stably backward and contacts the inclined side wall of the clamping plate. The inclined side wall of the clamping plate is subjected to force and produces horizontal outward separation, so that the clamping plate moves outward in the groove, which drives the limiting plate to move outward in the limiting groove and generates tensile potential energy on the spring. At the same time, the clamping plate is inserted outward into the aligned clamping groove, thus completing the firm fixation of the rotor core inside the inner groove and avoiding the situation of loosening under the influence of external force due to interference installation.

[0022] 2. By setting the marking slots, the V-shaped double-pass marking slots increase the airflow area, resulting in less air resistance and thus less noise during the rotation of the rotor assembly. Attached Figure Description

[0023] Figure 1 A schematic diagram of the overall structure of a high-speed motor with an anti-detachment insulated rotor connection end provided by this utility model;

[0024] Figure 2 A schematic diagram of a locking assembly structure for a high-speed motor with an anti-detachment insulated rotor connection end provided by this utility model;

[0025] Figure 3 This utility model provides a high-speed motor with an anti-detachment insulated rotor connection end. Figure 2 A magnified schematic diagram of part A in the middle;

[0026] Figure 4 A schematic diagram of the clamping plate and limiting plate structure of a high-speed motor with an anti-detachment insulating rotor connection end provided by this utility model.

[0027] The image shows:

[0028] 1. Rotor body; 2. Inner slot; 3. Rotor core; 401. Push slot; 402. Screw; 403. Knob; 404. Push rod; 405. Side slot; 406. Side plate; 407. Slot; 408. Clamping plate; 409. Limiting slot; 410. Limiting plate; 411. Spring; 412. Clamping groove; 5. Marking slot. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0030] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0031] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] like Figure 1-4 As shown, this embodiment proposes a high-speed motor with an anti-detachment insulated rotor connection end, including a rotor body 1. The rotor body 1 has an inner groove 2 inside, and a rotor core 3 is inserted into the inner groove 2. Locking components for fixing the rotor core 3 in the inner groove 2 are provided on both sides of the rotor core 3.

[0034] The locking assembly includes a push groove 401 and a slot 412. A screw 402 is installed inside the push groove 401, and a knob 403 is connected to the front end of the screw 402.

[0035] like Figure 3 As shown, in a preferred embodiment of this utility model, a push rod 404 is fitted onto the outer wall of the screw 402, a side groove 405 is provided on the side wall of the push groove 401, and a side plate 406 is installed on the side wall of the push rod 404. With the side plate 406 embedded in the side groove 405, the push rod 404 moves vertically and stably backward to contact the inclined side wall of the clamping plate 408, and the inclined side wall of the clamping plate 408 is subjected to force to separate outward in the horizontal direction.

[0036] like Figure 3 As shown, a slot 407 is provided on the outer side wall of the rear end of the push groove 401. A retaining plate 408 is embedded inside the slot 407. A limiting groove 409 is provided on the side wall of the slot 407. A limiting plate 410 is installed on the side wall of the retaining plate 408. The limiting plate 410 is driven to move outward in the limiting groove 409 to generate tensile potential energy on the spring 411. At the same time, the retaining plate 408 is inserted outward into the aligned retaining groove 412, thus completing the firm fixation of the rotor core 3 inside the inner groove 2.

[0037] like Figure 3As shown, the side wall of the limiting plate 410 is connected to a spring 411, and the side wall of the inner groove 2 is provided with a slot 412 for the cooperation of the locking plate 408, which generates tensile potential energy on the spring 411 and at the same time causes the locking plate 408 to be inserted outward into the aligned slot 412.

[0038] like Figure 1 As shown, the rotor core 3 has marking grooves 5 on its front and rear ends, and the marking grooves 5 are V-shaped. The V-shaped double-pass marking grooves 5 increase the airflow area, resulting in less air resistance and thus less noise during the rotation of the rotor assembly.

[0039] like Figure 3 As shown, the cross-sectional dimensions of the side plate 406 and the side groove 405 are matched. Twisting the knob 403 causes it to rotate, which in turn drives the screw 402 at the rear end to rotate. The screw 402 drives the push rod 404 to move backward in the push groove 401 through the thread engagement provided on the outer wall. With the side plate 406 embedded in the side groove 405, the push rod 404 moves vertically and stably backward and contacts the inclined side wall of the clamping plate 408.

[0040] like Figure 3 As shown, the limiting plate 410 is fixedly connected to one end of the spring 411, and the other end of the spring 411 is fixedly connected to the side wall of the limiting groove 409. The spring 411 generates tensile potential energy, which at the same time causes the clamping plate 408 to be inserted outward into the aligned clamping groove 412, thus completing the firm fixation of the rotor core 3 inside the inner groove 2, avoiding the situation where the interference fit is loosened under the influence of external force.

[0041] Specifically: When it is necessary to install the rotor core 3, the rotor core 3 is directly inserted into the inner groove 2 inside the rotor body 1, so that the slot 407 is aligned with the slot 412. The knob 403 is turned to rotate, which drives the screw 402 at the rear end to rotate. The screw 402 drives the push rod 404 to move backward in the push groove 401 through the thread engagement of the outer wall. With the side plate 406 embedded in the side groove 405, the push rod 404 moves vertically and stably backward and contacts the inclined side wall of the clamping plate 408. The inclined side wall of the clamping plate 408 is subjected to force to generate water. The outward separation in the horizontal direction causes the clamping plate 408 to move outward within the slot 407, which in turn causes the limiting plate 410 to move outward within the limiting groove 409, generating tensile potential energy on the spring 411. At the same time, the clamping plate 408 is inserted outward into the aligned clamping groove 412, thus completing the firm fixation of the rotor core 3 inside the inner groove 2. This avoids the situation where the interference fit is loosened under the influence of external forces. The V-shaped double-pass marking groove 5 increases the airflow area, resulting in less air resistance and thus less noise during the rotation of the rotor assembly.

[0042] All technical features in this embodiment can be freely combined according to actual needs.

[0043] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A high-speed motor with an anti-detachment insulated rotor connection end, comprising a rotor body (1), characterized in that: The rotor body (1) has an inner groove (2) inside, and a rotor core (3) is inserted inside the inner groove (2). Locking components for fixing the rotor core (3) inside the inner groove (2) are provided on both sides of the rotor core (3). The locking assembly includes a push groove (401) and a slot (412). A screw (402) is installed inside the push groove (401), and a knob (403) is connected to the front end of the screw (402).

2. A high-speed motor with an anti-detachment insulated rotor connection end according to claim 1, characterized in that, The screw (402) has a push rod (404) fitted on its outer wall, the push groove (401) has a side groove (405) on its side wall, and the push rod (404) has a side plate (406) installed on its side wall.

3. A high-speed motor with an anti-detachment insulated rotor connection end according to claim 1, characterized in that, The push groove (401) has a slot (407) on the outer side wall at the rear end. A retaining plate (408) is embedded inside the slot (407). A limiting groove (409) is provided on the side wall of the slot (407). A limiting plate (410) is installed on the side wall of the retaining plate (408).

4. A high-speed motor with an anti-detachment insulated rotor connection end according to claim 3, characterized in that, The side wall of the limiting plate (410) is connected to a spring (411), and the side wall of the inner groove (2) is provided with a slot (412) for the cooperation of the locking plate (408).

5. A high-speed motor with an anti-detachment insulated rotor connection end according to claim 1, characterized in that, The rotor core (3) has marking grooves (5) on its front and rear ends, and the marking grooves (5) are V-shaped.

6. A high-speed motor with an anti-detachment insulated rotor connection end according to claim 2, characterized in that, The cross-sectional dimensions of the side plate (406) and the cross-sectional dimensions of the side groove (405) are consistent with each other.

7. A high-speed motor with an anti-detachment insulated rotor connection end according to claim 4, characterized in that, The limiting plate (410) is fixedly connected to one end of the spring (411), and the other end of the spring (411) is fixedly connected to the side wall of the limiting groove (409).

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