A low-noise compressor motor

Abstract

This utility model discloses a low-noise compressor motor, including a compressor motor body, a movable sleeve nested within the compressor motor body, a positioning mechanism between the compressor motor body and the movable sleeve, and a noise reduction mechanism provided in the movable sleeve. The noise reduction mechanism includes a first arc-shaped groove. The movable sleeve has a first arc-shaped groove and a second arc-shaped groove sequentially formed from the outside to the inside. The first arc-shaped groove and the second arc-shaped groove respectively engage a first sound-absorbing cotton plate and a second sound-absorbing cotton plate. The first sound-absorbing cotton plate and the second sound-absorbing cotton plate are distributed at equal angles about the central axis of the movable sleeve. The reserved space between adjacent first sound-absorbing cotton plates is covered by the projection of the second sound-absorbing cotton plate on the first sound-absorbing cotton plate, so that the first sound-absorbing cotton plate and the second sound-absorbing cotton plate can form a ring after combination, which can achieve good noise reduction without affecting the heat transfer in the middle of the movable sleeve, thus ensuring the normal heat dissipation of the compressor motor body.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a low-noise compressor motor. Background Technology

[0002] The compressor motor is the core driving component of refrigeration equipment. It drives the compressor crankshaft to rotate through electromagnetic induction, realizing the compression and circulation of refrigerant. Currently, most mainstream compressor motors adopt asynchronous motors or permanent magnet synchronous motor structures. For example, Chinese utility model patent CN218216956U discloses a low-noise stepper motor housing, including a housing with a baffle on the inner wall of the housing. The baffle and the inner wall of the housing form a cavity for accommodating sound-absorbing cotton. The baffle has several through holes, and the upper end of the cavity is also provided with an end cap. The beneficial effect of this application is that the sound-absorbing cotton is placed inside the housing. The noise emitted by the mechanism inside the housing is conducted to the sound-absorbing cotton through the through holes and absorbed by it, thereby significantly reducing the noise of the stepper motor. Although the above-mentioned authorized patent can achieve noise reduction of the motor, it nests the annular sound-absorbing cotton inside the housing. The annular sound-absorbing cotton occupies most of the housing area, causing the housing to conduct heat only through its two ends to its outer fins, resulting in slow heat conduction efficiency and affecting the overall heat dissipation effect of the motor. To address the aforementioned issues, there is an urgent need for innovative design based on the existing low-noise compressor motor. Utility Model Content

[0003] The purpose of this invention is to provide a low-noise compressor motor to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a low-noise compressor motor, including a compressor motor body, a movable sleeve nested within the compressor motor body, heat dissipation fins fixed to the movable sleeve, a positioning mechanism provided between the compressor motor body and the movable sleeve, and a noise reduction mechanism provided in the movable sleeve; the noise reduction mechanism includes a first arc-shaped slot, and the movable sleeve has a first arc-shaped slot and a second arc-shaped slot sequentially formed from the outside to the inside, the first arc-shaped slot and the second arc-shaped slot respectively engaging a first sound-absorbing cotton board and a second sound-absorbing cotton board, and the reserved position between adjacent first sound-absorbing cotton boards is covered by the projection of the second sound-absorbing cotton board onto the first sound-absorbing cotton board.

[0005] Preferably, the positioning mechanism includes a positioning groove, the compressor motor body has a positioning groove, the positioning groove is provided with a positioning plate, and the positioning plate is fixedly connected to the movable sleeve.

[0006] Preferably, the sealing mechanism includes a rubber sealing ring, the movable sleeve is fitted with the rubber sealing ring, the rubber sealing ring is fitted with a fixed ring, and the rubber sealing ring and the fixed ring are fixedly connected to the movable sleeve by fasteners.

[0007] Preferably, both the first and second arc-shaped card slots have an opening for retrieving objects.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: the low-noise compressor motor is provided with a first sound-absorbing cotton plate and a second sound-absorbing cotton plate, and the first sound-absorbing cotton plate and the second sound-absorbing cotton plate are distributed at equal angles about the central axis of the movable sleeve. The reserved position between adjacent first sound-absorbing cotton plates is covered by the projection of the second sound-absorbing cotton plate on the first sound-absorbing cotton plate, so that the first sound-absorbing cotton plate and the second sound-absorbing cotton plate can form a ring after being combined, which is equivalent to the effect of a complete ring sound-absorbing cotton plate. This achieves good noise reduction without affecting the heat transfer in the middle of the movable sleeve, thus ensuring the normal heat dissipation of the compressor motor body. Attached Figure Description

[0009] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0010] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model;

[0011] Figure 3 This is a schematic diagram of the structure of the first and second sound-absorbing cotton boards after they are separated from the movable sleeve.

[0012] Figure 4 This is a schematic diagram of the rear three-dimensional structure of the present invention;

[0013] Figure 5 This is a cross-sectional view of the installation structure of the first bolt of this utility model.

[0014] In the diagram: 1. Compressor motor body; 2. Movable sleeve; 3. First arc-shaped slot; 4. Second arc-shaped slot; 5. First sound-absorbing cotton board; 6. Second sound-absorbing cotton board; 7. Retrieval port; 8. Heat dissipation fins; 9. First bolt; 10. Rubber sealing ring; 11. Fixing ring; 12. Second bolt; 13. Positioning groove; 14. Positioning plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-5 This utility model provides a technical solution: a low-noise compressor motor, including a compressor motor body 1, a movable sleeve 2 movably nested on the outer side of the compressor motor body 1, allowing the movable sleeve 2 to be removed from the compressor motor body 1, heat dissipation fins 8 fixed on the outer wall of the movable sleeve 2, the heat dissipation fins 8 being distributed at equal angles about the central axis of the movable sleeve 2, increasing the heat dissipation area of ​​the compressor motor body 1 and improving the heat dissipation effect of the compressor motor body 1, a positioning mechanism for accurately installing the movable sleeve 2 into a designated position is provided between the compressor motor body 1 and the movable sleeve 2, and a noise reduction mechanism for reducing the noise of the compressor motor body 1 is provided inside the side of the movable sleeve 2; the noise reduction mechanism includes a first arc-shaped groove 3, and the first arc-shaped groove 3 and the second arc-shaped groove 3 are sequentially formed from the outside to the inside inside the side of the movable sleeve 2. The opening ends of the arc-shaped slot 4, the first arc-shaped slot 3, and the second arc-shaped slot 4 are flush with one end of the movable sleeve 2. The first sound-absorbing cotton plate 5 and the second sound-absorbing cotton plate 6 are respectively engaged inside the first arc-shaped slot 3 and the second arc-shaped slot 4. The first arc-shaped slot 3, the second arc-shaped slot 4, the first sound-absorbing cotton plate 5, and the second sound-absorbing cotton plate 6 are all distributed at equal angles about the central axis of the movable sleeve 2. The reserved position between adjacent first sound-absorbing cotton plates 5 is covered by the projection of the second sound-absorbing cotton plate 6 on the first sound-absorbing cotton plate 5, so that the first sound-absorbing cotton plate 5 and the second sound-absorbing cotton plate 6 can form a ring after being combined, which is equivalent to the effect of a complete ring sound-absorbing cotton plate. The advantage of this design is that it can achieve good noise reduction without affecting the heat transfer in the middle of the movable sleeve 2, ensuring the normal heat dissipation of the compressor motor body 1.

[0017] The positioning mechanism includes a positioning groove 13. The positioning groove 13 is provided on the outer side of the compressor motor body 1. A positioning plate 14 is movably arranged inside the positioning groove 13. One side of the positioning plate 14 is fixedly connected to the inner side of the movable sleeve 2. The positioning groove 13 and the positioning plate 14 are distributed at equal angles about the central axis of the movable sleeve 2, which speeds up the assembly efficiency of the entire device.

[0018] One end of the movable sleeve 2 is provided with a sealing mechanism for water ingress into the first sound-absorbing cotton board 5 and the second sound-absorbing cotton board 6 near the opening end of the first arc-shaped groove 3 and the second arc-shaped groove 4. The sealing mechanism includes a rubber sealing ring 10. The rubber sealing ring 10 is attached to one end of the movable sleeve 2 near the opening end of the first arc-shaped groove 3 and the second arc-shaped groove 4. A fixing ring 11 is attached to one side of the rubber sealing ring 10 away from the movable sleeve 2. The rubber sealing ring 10 and the fixing ring 11 are fixedly connected to the movable sleeve 2 by fasteners. The fasteners can be second bolts 12. The second bolts 12 are slidably connected to both the rubber sealing ring 10 and the fixing ring 11. The end of the second bolts 12 is threaded to the end side of the movable sleeve 2. The second bolts 12 are distributed at equal angles about the central axis of the movable sleeve 2. One movable sleeve 2 can seal several first sound-absorbing cotton boards 5 and second sound-absorbing cotton boards 6, improving work efficiency.

[0019] The compressor motor body 1 and the movable sleeve 2 are fixedly connected by fasteners, which can be first bolts 9. The first bolts 9 and the end side of the movable sleeve 2 are connected by a through sliding connection. The end of the first bolts 9 is threaded to the end side of the compressor motor body 1. The first bolts 9 are distributed at equal angles about the central axis of the movable sleeve 2, which improves the stability of the fixation between the compressor motor body 1 and the movable sleeve 2.

[0020] The inner side of the first arc-shaped slot 3 and the outer side of the second arc-shaped slot 4 are both provided with a retrieval port 7. The retrieval port 7 is located near the opening end of the first arc-shaped slot 3 and the second arc-shaped slot 4. The retrieval port 7 is designed so that fingers can be inserted, making it convenient for users to remove and replace the first sound-absorbing cotton board 5 and the second sound-absorbing cotton board 6 inside the first arc-shaped slot 3 and the second arc-shaped slot 4.

[0021] Both sides of the bottom of the movable sleeve 2 are fixed with support plates, and the bottom of the support plates are provided with mounting holes for mounting the compressor motor body 1.

[0022] Working principle: When using this low-noise compressor motor, first pick up the compressor motor body 1, aligning the positioning groove 13 on the compressor motor body 1 with the positioning plate 14 on the movable sleeve 2. Then move the compressor motor body 1 so that the positioning plate 14 and the positioning groove 13 engage, completing the assembly of the compressor motor body 1 and the movable sleeve 2. Next, use the first bolt 9 to fix the compressor motor body 1 and the movable sleeve 2 together. Then, install the first sound-absorbing cotton plate 5 inside the first arc-shaped slot 3, and then install the second sound-absorbing cotton plate 6 inside the second arc-shaped slot 4. When the first sound-absorbing cotton plate 5 and the second sound-absorbing cotton plate 6 need to be replaced, insert your finger into the retrieval port 7 to remove the first sound-absorbing cotton plate 5 and the second sound-absorbing cotton plate 6 for replacement. Next, attach the rubber sealing ring 10 to one end of the movable sleeve 2, and then attach the fixing ring 11 to one side of the rubber sealing ring 10. Finally, use the second bolt 12 to fix the rubber sealing ring 10 and the fixing ring 11 to the movable sleeve 2.

Claims

1. A low-noise compressor motor, comprising a compressor motor body, wherein a movable sleeve is nested within the compressor motor body, and heat dissipation fins are fixed to the movable sleeve, characterized in that: A positioning mechanism is provided between the compressor motor body and the movable sleeve, and a noise reduction mechanism is provided in the movable sleeve. The noise reduction mechanism includes a first arc-shaped slot, and the movable sleeve has a first arc-shaped slot and a second arc-shaped slot sequentially opened from the outside to the inside. The first arc-shaped slot and the second arc-shaped slot respectively engage a first sound-absorbing cotton board and a second sound-absorbing cotton board. The reserved position between adjacent first sound-absorbing cotton boards is covered by the projection of the second sound-absorbing cotton board on the first sound-absorbing cotton board.

2. The low-noise compressor motor according to claim 1, characterized in that: The positioning mechanism includes a positioning groove, the compressor motor body has a positioning groove, the positioning groove is provided with a positioning plate, and the positioning plate is fixedly connected to the movable sleeve.

3. A low-noise compressor motor according to claim 1, characterized in that: The movable sleeve is provided with a sealing mechanism, which includes a rubber sealing ring. The movable sleeve is fitted with the rubber sealing ring, and the rubber sealing ring is fitted with a fixing ring. The rubber sealing ring and the fixing ring are fixedly connected to the movable sleeve by fasteners.

4. A low-noise compressor motor according to claim 2, characterized in that: Both the first and second arc-shaped card slots have an opening for retrieving objects.

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