Non-inductive motor

Abstract

The utility model relates to the technical field of motors, in particular to a non-inductive motor, which comprises a rear shell. The front shell is arranged on one side of the rear shell; the first frame body is movably installed in the rear shell, and the surface of the first frame body is sleeved with first sound insulation cotton; the second frame body is movably installed in the front shell, and the surface of the second frame body is sleeved with second sound insulation cotton; the inserting plate is fixedly connected to the outer sides of the first frame body and the second frame body; the installation plate is fixedly connected to one side of the rear shell and one side of the front shell, a sliding groove is formed in the installation plate, the first frame body is pressed and rotated to enable the insertion plate to be separated from the insertion groove and slide in the sliding groove, and the first frame body can be taken out from the rear shell in cooperation with the push plate and the reset spring; therefore, the first sound insulation cotton arranged on the surface of the first frame body in a sleeving mode can be independently replaced, the sound insulation effect on the non-inductive motor is guaranteed, and the replacement steps of the second sound insulation cotton are similar to the above steps, so that the steps are not repeated here.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a sensorless motor. Background Technology

[0002] Today, various types of motors are indispensable in industrial manufacturing, high-tech, home appliances, transportation, and other fields, bringing us tremendous development and convenience. At the same time, motors are constantly being updated and iterated, with the current mainstream trend being the shift from traditional brushed motors to brushless motors. Sensorless motors refer to motors that do not rely on traditional physical sensors (such as Hall sensors, encoders, etc.) to obtain information such as rotor position and speed during operation. This technology is often used in brushless motors.

[0003] In the prior art, some sensorless motors are fitted with an outer shell with sound-absorbing cotton fixed to the inner wall to reduce the noise generated during use. The sound-absorbing cotton can absorb the noise generated by the motor during operation. However, the sound-absorbing cotton will age and deteriorate over time, thus affecting its sound insulation effect. Since the sound-absorbing cotton is fixed to the inner wall of the outer shell, it is difficult to replace the sound-absorbing cotton separately, thereby increasing the maintenance cost of the sensorless motor. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sensorless motor to solve the problem mentioned in the background art that some sensorless motors have sound insulation cotton that is fixed to the inner wall of the outer shell, making it difficult to replace the sound insulation cotton separately, thus increasing the maintenance cost of the sensorless motor.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sensorless motor, comprising:

[0006] Back cover;

[0007] The front shell is located on one side of the rear shell;

[0008] The first frame is movably installed inside the rear shell, and the surface of the first frame is covered with a first sound insulation cotton.

[0009] The second frame is movably installed inside the front shell, and the surface of the second frame is covered with a second sound insulation cotton.

[0010] The insert plate is fixedly connected to the outside of the first frame and the second frame;

[0011] A mounting plate is fixedly connected to one side of the rear shell and the front shell. A sliding groove is provided in the mounting plate. Several return springs are fixedly connected to the inner wall of the sliding groove. A push plate is fixedly connected to the other end of the return spring. Several slots matching the insert plate are provided in the inner wall of the sliding groove. A clearance hole through the sliding groove is provided on one side of the mounting plate.

[0012] The motor body is located inside the rear housing.

[0013] Optionally, the first frame further includes:

[0014] The support is fixedly connected to the inner wall of the first frame.

[0015] A connecting frame is fixedly connected to the inner wall of the first frame. A threaded rod is threadedly connected to the connecting frame. A guide rod is slidably connected to one side of the threaded rod inside the connecting frame. A limit plate is rotatably connected to the bottom end of the threaded rod. The limit plate and the guide rod are fixedly connected.

[0016] Optionally, anti-slip pads are fixedly connected to one side of both the bearing seat and the limiting plate, and several heat dissipation holes are opened on the surface of the bearing seat, the limiting plate and the anti-slip pads.

[0017] Optionally, a plurality of heat dissipation fins are fixedly connected to the inner wall of the rear shell, and the heat dissipation fins are rectangular.

[0018] Optionally, a handle groove is provided on one side of both the first frame and the second frame, and the handle groove is arc-shaped.

[0019] Optionally, the first frame, the second frame, and one side of the mounting plate are all fixedly connected with indicator strips, and the indicator strips are rectangular.

[0020] Optionally, the mounting plate further includes:

[0021] A locking hole is provided on the surface of the mounting plate, and a locking bolt is inserted into the locking hole. A locking nut is threaded onto the surface of the locking bolt.

[0022] The beneficial effects of this utility model are as follows: Pressing the first frame and rotating it causes the insert plate to disengage from the slot and slide in the groove. With the help of the push plate and the return spring, the first frame can be removed from the rear shell. This allows the first sound insulation cotton fitted on the surface of the first frame to be replaced individually, ensuring the sound insulation effect on the sensorless motor. Since the replacement steps of the second sound insulation cotton are similar to the above steps, they will not be described again here. Attached Figure Description

[0023] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of a sensorless motor according to the present invention;

[0025] Figure 2 This is an exploded structural diagram of a sensorless motor according to the present invention.

[0026] Figure 3 This is a schematic diagram of the first frame structure of a sensorless motor according to the present invention;

[0027] Figure 4 This is a schematic diagram of the mounting plate structure for a sensorless motor according to the present invention;

[0028] Figure label:

[0029] 1. Back cover;

[0030] 2. Front shell;

[0031] 3. First frame; 301. First sound insulation cotton; 302. Bearing seat; 303. Connecting frame; 304. Threaded rod; 305. Guide rod; 306. Limiting plate;

[0032] 4. Second frame; 401. Second sound insulation cotton;

[0033] 5. Insert plate;

[0034] 6. Mounting plate; 601. Slide groove; 602. Return spring; 603. Push plate; 604. Slot; 605. Clearance hole; 606. Locking hole; 607. Locking bolt; 608. Locking nut;

[0035] 7. Motor body;

[0036] 8. Anti-slip mat;

[0037] 9. Heat dissipation holes;

[0038] 10. Heat dissipation fins;

[0039] 11. Handle groove;

[0040] 12. Indicator bar. Detailed Implementation

[0041] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0042] Please see Figures 1 to 4This utility model provides a technical solution: a rear shell 1; a front shell 2 disposed on one side of the rear shell 1; a first frame 3 movably installed inside the rear shell 1, the surface of the first frame 3 being covered with a first sound insulation cotton 301; a second frame 4 movably installed inside the front shell 2, the surface of the second frame 4 being covered with a second sound insulation cotton 401; an insert plate 5 fixedly connected to the outside of the first frame 3 and the second frame 4; a mounting plate 6 fixedly connected to one side of the rear shell 1 and the front shell 2, the mounting plate 6 having a sliding groove 601, a plurality of return springs 602 fixedly connected to the inner wall of the sliding groove 601, a push plate 603 fixedly connected to the other end of the return springs 602, a plurality of slots 604 matching the insert plate 5 being opened on the inner wall of the sliding groove 601, and a clearance hole 605 penetrating the sliding groove 601 being opened on one side of the mounting plate 6; and a motor body 7 disposed inside the rear shell 1.

[0043] Press the first frame 3 towards the rear shell 1 to disengage the insert plate 5 fixed on its outer side from the slot 604 opened in the inner wall of the slide groove 601. During this process, the push plate 603 will move in the same direction in the slide groove 601 due to the pressure of the first frame 3 and press several return springs 602 fixed on one side of it. Then rotate the first frame 3 to make the insert plate 5 rotate along the slide groove 601 opened in the mounting plate 6 until the insert plate 5 is directly facing the clearance hole 605 opened on one side of the mounting plate 6. Then stop pressing the first frame 3 with your hand. At this time, the return spring 602 will reset and push the insert plate 5 towards the clearance hole 605 through the push plate 603. The first frame 3 can then be removed from the rear shell 1, so that the first sound insulation cotton 301 fitted on the surface of the first frame 3 can be replaced individually, ensuring the sound insulation effect of the sensorless motor. Since the replacement steps of the second sound insulation cotton 401 are similar to the above steps, they will not be described again here.

[0044] Furthermore, both the first frame 3 and the second frame 4 have a handle groove 11 on one side, and the handle groove 11 is arc-shaped. The handle groove 11 facilitates the rotation of the first frame 3 or the second frame 4.

[0045] Furthermore, indicator strips 12 are fixedly connected to one side of the first frame 3, the second frame 4, and the mounting plate 6. The indicator strips 12 are rectangular. When the insert plate 5 is facing the slot 604, the indicator strips 12 fixed to one side of the first frame 3 or the second frame 4 will be aligned with the indicator strips 12 fixed to one side of the mounting plate 6. This arrangement ensures that the insert plate 5 is accurately inserted into the slot 604.

[0046] Furthermore, a locking hole 606 is formed on the surface of the mounting plate 6, and a locking bolt 607 passes through the locking hole 606. A locking nut 608 is threaded onto the surface of the locking bolt 607. By rotating the locking nut 608 to disengage it from the locking bolt 607, and then removing the locking bolt 607 from the locking hole 606 on the surface of the mounting plate 6, the front housing 2 can be separated from the rear housing 1, thereby facilitating the maintenance of the sensorless motor.

[0047] Please see Figure 3 The present invention provides a technical solution: a bearing seat 302 is fixedly connected to the inner wall of the first frame 3; a connecting frame 303 is fixedly connected to the inner wall of the first frame 3, a threaded rod 304 is threadedly connected to the connecting frame 303, a guide rod 305 is slidably connected to one side of the threaded rod 304 inside the connecting frame 303, a limiting plate 306 is rotatably connected to the bottom end of the threaded rod 304, and the limiting plate 306 and the guide rod 305 are fixedly connected.

[0048] Place the motor body 7 on the top of the support seat 302 fixed to the inner wall of the first frame 3, and then rotate the threaded rod 304 to move it along the connecting frame 303 fixed to the inner wall of the first frame 3. Due to the restriction of the guide rod 305, the limiting plate 306 connected to one end of the threaded rod 304 will move towards the support seat 302 until the limiting plate 306 contacts the motor body 7, thereby limiting the position of the motor body 7 in the rear shell 1 and improving its stability during operation.

[0049] Preferably, anti-slip pads 8 are fixedly connected to one side of both the support base 302 and the limiting plate 306. The anti-slip pads 8 can increase the friction between the support base 302 and the motor body 7, and between the limiting plate 306 and the motor body 7, thereby further improving the limiting effect on the motor body 7.

[0050] Please see Figure 1 and Figure 3 The present invention provides a technical solution: a plurality of heat dissipation fins 10 are fixedly connected to the inner wall of the rear shell 1, and the heat dissipation fins 10 are rectangular.

[0051] When the motor body 7 is running, the heat generated by it will be conducted to the heat dissipation fins 10 and exchanged efficiently with the outside air, thereby effectively dissipating the heat.

[0052] Preferably, the bearing seat 302, the limiting plate 306, and the anti-slip pad 8 are all provided with a plurality of heat dissipation holes 9. The heat generated by the motor body 7 during operation will enter the rear shell 1 through the heat dissipation holes 9 on the surfaces of the bearing seat 302, the limiting plate 306, and the anti-slip pad 8, thereby further improving the heat dissipation effect of the motor body 7 while ensuring the limiting effect of the motor body 7.

[0053] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sensorless motor, characterized in that, include: Back cover; The front shell is located on one side of the rear shell; The first frame is movably installed inside the rear shell, and the surface of the first frame is covered with a first sound insulation cotton. The second frame is movably installed inside the front shell, and the surface of the second frame is covered with a second sound insulation cotton. The insert plate is fixedly connected to the outside of the first frame and the second frame; A mounting plate is fixedly connected to one side of the rear shell and the front shell. A sliding groove is provided in the mounting plate. Several return springs are fixedly connected to the inner wall of the sliding groove. A push plate is fixedly connected to the other end of the return spring. Several slots matching the insert plate are provided in the inner wall of the sliding groove. A clearance hole through the sliding groove is provided on one side of the mounting plate. The motor body is located inside the rear housing.

2. The sensorless motor according to claim 1, characterized in that, The first frame also includes: The support is fixedly connected to the inner wall of the first frame. A connecting frame is fixedly connected to the inner wall of the first frame. A threaded rod is threadedly connected to the connecting frame. A guide rod is slidably connected to one side of the threaded rod inside the connecting frame. A limit plate is rotatably connected to the bottom end of the threaded rod. The limit plate and the guide rod are fixedly connected.

3. A sensorless motor according to claim 2, characterized in that, Anti-slip pads are fixedly connected to one side of the bearing seat and the limiting plate, and several heat dissipation holes are opened on the surface of the bearing seat, the limiting plate and the anti-slip pads.

4. A sensorless motor according to claim 1, characterized in that, Several heat dissipation fins are fixedly connected to the inner wall of the rear shell, and the heat dissipation fins are rectangular.

5. A sensorless motor according to claim 1, characterized in that, Both the first frame and the second frame have handle grooves on one side, and the handle grooves are arc-shaped.

6. A sensorless motor according to claim 1, characterized in that, Indicator strips are fixedly connected to one side of the first frame, the second frame, and the mounting plate. The indicator strips are rectangular.

7. A sensorless motor according to claim 1, characterized in that, The mounting plate also includes: A locking hole is provided on the surface of the mounting plate, and a locking bolt is inserted into the locking hole. A locking nut is threaded onto the surface of the locking bolt.

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