Full-plastic-package suction and exhaust range hood motor

Abstract

The invention relates to the technical field of suction and exhaust range hood motors, and discloses a full-plastic package suction and exhaust range hood motor which comprises a rear end cover, a motor shell is fixedly connected to the interior of the rear end cover, a stator iron core is fixedly connected to the interior of the motor shell, and a rotor is rotationally connected to the interior of the rear end cover. The exterior of the rotor is located in the stator iron core and the rotor, a rotating shaft is arranged in the rotor, the exterior of the rotating shaft is located in the rear end cover, a bearing is rotationally connected in the rear end cover, the exterior of the rotating shaft is arranged outside the bearing, and a first fixing frame is fixedly connected in the rear end cover. The motor shell and the stator core are fixed through the fixing frame I, and the rear end cover is utilized to complete integrated molding, so that the concentricity is directly locked by a mold precisely, and the problem that low noise is difficult to realize due to the fact that the concentricity is difficult to accurately control through manual calibration when positioning deviation occurs in split assembly in the prior art is solved.

Description

Technical Field

[0001] This invention relates to the field of range hood motor technology, and in particular to a fully encapsulated range hood motor. Background Technology

[0002] Traditional range hood motors with metal casings use a metal shell as their core, relying on the electromagnetic induction of the stator windings and rotor to drive the impeller for smoke extraction. Due to the high strength of metal, they are widely used in traditional range hoods. However, their structure consists of a cast iron or steel plate shell, exposed terminals, and is assembled with bolts. In a kitchen environment, the rotor magnets of traditional metal-cased motors are surface-bonded, posing a risk of magnet detachment. Furthermore, metal has a high conductivity for vibration and noise, easily generating noticeable noise during operation. Therefore, a fully enclosed plastic-sealed range hood motor is needed.

[0003] Most traditional range hoods with metal-cased motors typically use a method where the stator and rotor are machined separately and then assembled using bolts. During use, when positioning deviations occur due to the separate assembly, it is difficult to accurately control the concentricity through manual or mechanical calibration, resulting in difficulties in achieving low noise. Summary of the Invention

[0004] To overcome the above shortcomings, the present invention provides a fully encapsulated range hood motor, which aims to improve the problem in the prior art where the concentricity is difficult to accurately control through manual calibration when positioning deviation occurs due to the separate assembly, thus making it difficult to achieve low noise.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A fully encapsulated range hood motor includes a rear end cover. A motor housing is fixedly connected inside the rear end cover. A stator core is fixedly connected inside the motor housing. A rotor is rotatably connected inside the rear end cover. The outside of the rotor is located inside the stator core and the rotor. A rotating shaft is disposed inside the rotor. The outside of the rotating shaft is located inside the rear end cover. A bearing is rotatably connected inside the rear end cover. The outside of the rotating shaft is located outside the bearing. A fixing bracket is fixedly connected inside the rear end cover. The outside of the fixing bracket is located outside the motor housing and the stator core.

[0007] By adopting the above technical solution, the rear end cover fixes the motor housing, stator core and rotor, achieving an integrated plastic seal effect. This improves the problem in the existing technology where positioning deviations due to separate assembly make it difficult to accurately control concentricity through manual calibration, resulting in difficulty in achieving low noise.

[0008] Preferably, a plastic sealing bracket is snapped onto the outside of the rear end cover, and a fixing plate is provided inside the plastic sealing bracket.

[0009] Preferably, the outside of the plastic package support one is rotationally connected with a buckle, and the outside of the buckle is fixedly connected to the outside of the fixed plate.

[0010] Preferably, the outside of the rear end cover is clamped with a rotating handle, and the inside of the rotating handle is fixedly connected with a fixed column one.

[0011] Preferably, the outside of the fixed column one is provided with a spring, the outside of the spring is arranged in the inside of the rotating handle, and the outside of the spring is provided with a plastic package support two.

[0012] Preferably, the outside of the fixed column one penetrates the plastic package support two, the outside of the fixed column one penetrates the inside of the fixed plate, the inside of the fixed column one is provided with a fixed column two, and the outside of the fixed column two is attached to the outside of the fixed plate.

[0013] Preferably, the inside of the rotating shaft is provided with a bolt, the outside of the rear end cover is fixedly connected with a fixed frame two, and the outside of the rear end cover is provided with a sealing ring.

[0014] Preferably, the outside of the sealing ring is attached to the outside of the plastic package support one, the outside of the motor casing is fixedly connected with a power supply interface, and the outside of the power supply interface penetrates the inside of the rear end cover.

[0015] The application has the following beneficial effects:

[0016] 1. In the application, the motor casing and the stator core are fixed by the fixed frame one, and the rear end cover is integrally formed, so that the concentricity is directly locked by the precision of the mold, and the positioning deviation caused by split assembly in the prior art is improved, and the low noise problem is difficult to realize.

[0017] 2. In the application, the buckle drives the fixed plate to shrink by pulling the buckle, so that the separation of the plastic package support one and the rear end cover is realized, and the internal parts of the rear end cover are replaced, and the equipment is maintained and repaired. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A perspective view of a full plastic package range hood motor is provided for the application;

[0019] Figure 2 A stator core partial structure schematic view of a full plastic package range hood motor is provided for the application;

[0020] Figure 3 A plastic package support one partial structure schematic view of a full plastic package range hood motor is provided for the application;

[0021] Figure 4 A fixed frame two partial structure schematic view of a full plastic package range hood motor is provided for the application;

[0022] Figure 5 A partial structure diagram of a rotor of a full plastic-sealed range hood motor is provided in the present application;

[0023] Figure 6 A partial structure diagram of a fixed column one of a full plastic-sealed range hood motor is provided in the present application;

[0024] Figure 7 A partial structure diagram of a fixed column two of a full plastic-sealed range hood motor is provided in the present application.

[0025] Legend:

[0026] 1, rear end cover; 2, motor casing; 3, stator core; 4, rotor; 5, rotating shaft; 6, bearing; 7, fixed frame one; 8, plastic sealing support one; 9, fixed plate; 10, buckle; 11, rotating handle; 12, plastic sealing support two; 13, spring; 14, fixed column one; 15, fixed column two; 16, bolt; 17, fixed frame two; 18, sealing ring; 19, interface. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings of the specification of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] Embodiment one

[0029] With reference to Figure 1 and Figure 2 , an embodiment provided by the present application is a full plastic-sealed range hood motor, which comprises a rear end cover 1, the inside of the rear end cover 1 is fixedly connected with a motor casing 2, the inside of the motor casing 2 is fixedly connected with a stator core 3, the inside of the rear end cover 1 is rotatably connected with a rotor 4, the outside of the rotor 4 is located in the inside of the stator core 3 and the rotor 4, the inside of the rotor 4 is provided with a rotating shaft 5, the outside of the rotating shaft 5 is located in the inside of the rear end cover 1, the inside of the rear end cover 1 is rotatably connected with a bearing 6, the outside of the rotating shaft 5 is provided outside the bearing 6, the inside of the rear end cover 1 is fixedly connected with a fixed frame one 7, the outside of the fixed frame one 7 is provided outside the motor casing 2 and the stator core 3;

[0030] Specifically, the rear cover 1 is an integral piece used to fix the motor housing 2, stator core 3, and rotor 4. The motor housing 2 is used to generate a magnetic field when energized to drive the rotor 4 to rotate. The stator core 3 is used to generate a magnetic field to drive the rotor 4 to rotate. The rotor 4 is used to rotate under the drive of the magnetic field. The rotating shaft 5 is used to rotate. The bearing 6 is used to reduce the friction when the rotating shaft 5 rotates. The fixing bracket 7 is used to fix the motor housing 2 and the stator core 3, so that the concentricity is directly locked by the mold precision. This improves the problem in the existing technology where the concentricity is difficult to accurately control through manual calibration when there is a positioning deviation due to the separate assembly, which makes it difficult to achieve low noise.

[0031] Reference Figure 2 and Figure 3 The outer side of the rear cover 1 is snapped with a plastic sealing bracket 8, and the inner side of the plastic sealing bracket 8 is provided with a fixing plate 9; the outer side of the plastic sealing bracket 8 is rotatably connected with a buckle 10, and the outer side of the buckle 10 is fixedly connected to the outer side of the fixing plate 9.

[0032] Specifically, the plastic seal bracket 8 is used to seal the rear end cover 1, the fixing plate 9 is made of flexible material and is used to snap the rear end cover 1, and the buckle 10 is used to connect the rear end cover 1. Rotating the buckle 10 will cause the fixing plate 9 to retract inside the plastic seal bracket 8. Rotating the buckle 10 back to its original position will cause the buckle 10 to drive the fixing plate 9 back to its original position.

[0033] Reference Figure 4 and Figure 5 The shaft 5 has a pin 16 inside, the rear end cover 1 is fixedly connected to the outside of the fixing bracket 17, and the rear end cover 1 is provided with a sealing ring 18. The sealing ring 18 is attached to the outside of the plastic sealing bracket 8. The motor housing 2 is fixedly connected to the outside of the power interface 19, and the outside of the power interface 19 penetrates the inside of the rear end cover 1.

[0034] Specifically, pin 16 is used to fix the rotating shaft 5 to prevent the rotating shaft 5 from detaching from the rotor 4 when rotating. Fixing bracket 2 17 is used for fixing. The interior of fixing bracket 2 17 is equipped with a rubber pad. Sealing ring 18 is used to seal the plastic-sealed bracket 1 8 and the rear end cover 1 to prevent oil fumes from entering the interior of the rear end cover 1 through the gap. Power interface 19 is used to connect the power supply.

[0035] Example 2

[0036] Reference Figure 6 and Figure 7A rotating handle 11 is snapped onto the outside of the rear cover 1, and a fixing post 14 is fixedly connected inside the rotating handle 11; a spring 13 is provided on the outside of the fixing post 14, and the outside of the spring 13 is located inside the rotating handle 11; a plastic sealing bracket 12 is provided on the outside of the spring 13; the outside of the fixing post 14 passes through the plastic sealing bracket 12, and the outside of the fixing post 14 passes through the inside of the fixing plate 9; a fixing post 15 is provided inside the fixing post 14, and the outside of the fixing post 15 is attached to the outside of the fixing plate 9.

[0037] Specifically, the rotating handle 11 is used to fix the rear end cover 1 and the fixing plate 9, the second plastic-sealed bracket 12 is used to connect the rear end cover 1, the spring 13 is used to rebound the first fixing post 14 and the second fixing post 15, the first fixing post 14 is used to connect the fixing plate 9 and the second fixing post 15, and the second fixing post 15 is used to snap the fixing plate 9. When the device needs to be maintained, the rotating handle 11 is pressed and rotated to make the second fixing post 15 disengage from the fixing plate 9, thereby completing the separation of the rotating handle 11 and the first plastic-sealed bracket 8, and thus realizing the separation of the rear end cover 1 and the first plastic-sealed bracket 8.

[0038] Working principle: When the device is needed, connect the power supply through the power interface 19. The motor housing 2 will generate current, and then a magnetic field will be generated inside the motor housing 2 and the stator core 3. The magnetic field drives the rotor 4 to rotate, and the rotation of the rotor 4 drives the shaft 5 to rotate. When the device needs to be maintained, rotate the buckle 10. The buckle 10 will drive the fixing plate 9 to retract, thereby separating the plastic-encapsulated bracket 8 and the rear end cover 1. When the buckle 10 is rotated to its original position, the fixing plate 9 will also return to its original position, thus completing the fixation of the plastic-encapsulated bracket 8 and the rear end cover 1. This device can not only achieve concentricity precision locking, but also achieve the effect of quick disassembly of the rear end cover 1 and the plastic-encapsulated bracket 8.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fully encapsulated range hood motor, comprising a rear end cover (1), characterized in that: The motor housing (2) is fixedly connected inside the rear end cover (1). The stator core (3) is fixedly connected inside the motor housing (2). The rotor (4) is rotatably connected inside the rear end cover (1). The outside of the rotor (4) is located inside the stator core (3) and the rotor (4). The rotor (4) is provided with a rotating shaft (5). The outside of the rotating shaft (5) is located inside the rear end cover (1). The bearing (6) is rotatably connected inside the rear end cover (1). The outside of the rotating shaft (5) is located outside the bearing (6). The fixing bracket (7) is fixedly connected inside the rear end cover (1). The outside of the fixing bracket (7) is located outside the motor housing (2) and the stator core (3).

2. The fully encapsulated range hood motor according to claim 1, characterized in that: The outer side of the rear cover (1) is fitted with a plastic sealing bracket (8), and the inner side of the plastic sealing bracket (8) is provided with a fixing plate (9).

3. The fully encapsulated range hood motor according to claim 2, characterized in that: The plastic-sealed bracket (8) is externally rotatably connected to a buckle (10), and the buckle (10) is externally fixedly connected to the outside of the fixing plate (9).

4. The fully encapsulated range hood motor according to claim 1, characterized in that: The rear end cover (1) is externally attached to a rotating handle (11), and a fixing post (14) is fixedly connected inside the rotating handle (11).

5. The fully encapsulated range hood motor according to claim 4, characterized in that: A spring (13) is provided on the outside of the first fixed column (14), and the outside of the spring (13) is provided inside the rotating handle (11). A plastic-sealed bracket (12) is provided on the outside of the spring (13).

6. The fully encapsulated range hood motor according to claim 5, characterized in that: The outside of the first fixing post (14) penetrates the second plastic-sealed bracket (12), the outside of the first fixing post (14) penetrates the inside of the fixing plate (9), the inside of the first fixing post (14) is provided with the second fixing post (15), and the outside of the second fixing post (15) is attached to the outside of the fixing plate (9).

7. The fully encapsulated range hood motor according to claim 1, characterized in that: The rotating shaft (5) is provided with a pin (16) inside, the rear end cover (1) is fixedly connected to a fixing bracket (17) outside, and the rear end cover (1) is provided with a sealing ring (18).

8. The fully encapsulated range hood motor according to claim 7, characterized in that: The sealing ring (18) is attached to the outside of the plastic seal bracket (8), and the power interface (19) is fixedly connected to the outside of the motor housing (2). The outside of the power interface (19) penetrates the inside of the rear end cover (1).

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