Stator structure of external rotor motor

Abstract

The invention discloses an outer rotor motor stator structure, and relates to the technical field of motor stators. Comprising a first stator and a second stator, and the second stator is arranged below the first stator; the third stator is arranged below the second stator; the contact mechanism is arranged in the first stator, the contact mechanism comprises an intercepting assembly and a fixing pad, and the intercepting assembly is used for controlling the fixing pad to be in a natural state or a compressed state. A connecting mechanism is installed outside the first stator, the connecting mechanism is in contact with the inner walls of the second stators, the connecting mechanism is in contact with the inner wall of the third stator, and the number of the second stators is multiple. According to the stator structure of the external rotor motor, the contact mechanism and the connecting mechanism are arranged to fix and protect the winding and the stators, so that the possibility that the winding is loosened or the stators are loosened is reduced, and the purpose of improving the use efficiency is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of motor stators, and specifically to a stator structure of an outer-rotor motor. Background Art

[0002] The stator is the stationary part of a motor or a generator. The stator consists of three parts: a stator core, a stator winding, and a frame. The stator is used to generate a rotating magnetic field. The characteristic of an outer-rotor motor is that the rotor is located outside the stator, while the stator is located inside. This design makes the outer-rotor motor have higher efficiency and smaller size in some applications.

[0003] For example, in the patent named: A Stator Structure of an Outer-Rotor Motor (Patent Application No.: CN202210519562.1), it is disclosed that by using expansion pins to install and fix the winding teeth, auxiliary teeth, and the stator body, it is possible to avoid the situation where the stator teeth cannot be inserted into the stator, or the pressure during insertion is too large, damaging the stator structure. However, during the use of the motor, due to phenomena such as motor vibration, the winding is prone to looseness, affecting the use effect of the motor. Summary of the Invention

[0004] To overcome the problem that during the use of the motor, due to phenomena such as motor vibration, the winding is prone to looseness, affecting the use effect of the motor, the present invention provides a stator structure of an outer-rotor motor, including a first stator; A second stator, which is arranged below the first stator; A third stator, which is arranged below the second stator; A contact mechanism, which is arranged inside the first stator. The contact mechanism includes an interception component and a fixing pad, and the interception component is used to control the fixing pad to be in a natural state or a compressed state.

[0005] Preferably, a connection mechanism is installed outside the first stator. The connection mechanism is in contact with the inner wall of the second stator and the inner wall of the third stator, and there are multiple second stators.

[0006] Preferably, the contact mechanism further includes: A fixing groove, which is opened inside the first stator. A moving rod is slidably connected inside the fixing groove, and the moving rod is connected to the interception component; Communication holes, which penetrate through the inside of the first stator. There are multiple communication holes, and they are evenly arranged. The communication holes can play a positioning role. When they are evenly arranged, it is possible to observe in real time whether the winding on the top of the first stator is uniform or loose; A fixing shaft, which is installed inside the fixing groove. The fixing shaft is connected to the fixing pad, and the fixing pad is made of an elastic material; Contact plate, the contact plate is installed outside the fixed pad, the contact plates are symmetrically arranged, the contact plates are inclined, and the contact plates are used to contact the fixed winding; Connector, the connector is installed at both ends of the fixed pad, the connector is set in an arc shape, and the connector is made of an elastic material.

[0007] Preferably, the interception assembly includes: Positioning ring, the positioning ring is installed outside the moving rod, there are two positioning rings, and both positioning rings are made of rubber; First interception rod, the first interception rod is installed outside the moving rod, and the first interception rod is arranged inside the fixed groove; Second interception rod, the second interception rod is connected to the bottom of the moving rod, the second interception rod is arranged inside the second stator, and a connecting rod is installed at the bottom of the second interception rod; Third interception rod, the third interception rod is connected to the bottom of the connecting rod, the third interception rod is arranged inside the third stator, and a spring is installed at the bottom of the third interception rod, and the spring is installed inside the third stator.

[0008] Preferably, the connection mechanism includes: Connection plate, the connection plate is in contact with the inner wall of the first stator, and a second through groove is opened inside the connection plate; Bottom ring, the bottom ring is installed at the bottom of the connection plate, a gasket is installed on the upper surface of the bottom ring, there are multiple gaskets and they are evenly arranged, and a first through groove is opened inside the bottom ring; Enclosure plate, the enclosure plate is installed outside the connection plate, the enclosure plate is set in a ring shape, and the enclosure plate is not in direct contact with the stator to avoid affecting the heat dissipation of the stator.

[0009] Preferably, the connection mechanism further includes: Connecting rod, the connecting rod is installed outside the connection plate, the connecting rod is set as an arc-shaped rod, and a bottom plate is installed at the bottom of the connecting rod; Adjusting rod, the adjusting rod is installed on the top of the bottom plate, a pressing plate is installed on the top of the adjusting rod, and a card slot is opened at the bottom of the pressing plate, and the pressing plate is used to press and fix the top of the first stator.

[0010] The present invention provides an outer rotor motor stator structure. It has the following beneficial effects: The stator structure of the outer rotor motor fixes and protects the winding by setting a contact mechanism. When the fixing pad is in the natural state, the fixing pad contacts the contact plate at the winding position to support and fix the winding. When the fixing pad is in the compressed state, the fixing pad moves away from the winding position, facilitating the winding work. By setting the contact mechanism, the winding is supported and protected, reducing the possibility of the winding becoming loose. Moreover, communication holes are provided inside the first stator, which can play a positioning role. The communication holes are evenly arranged, allowing real-time observation of whether the winding is uniform or loose.

[0011] The stator structure of the outer rotor motor fixes the positions of the first stator, multiple second stators, and the third stator by setting a connection mechanism, reducing the possibility of looseness between the stators. There is a first through groove between the surrounding plate and the stator, and the surrounding plate does not directly contact the stator, avoiding affecting the heat dissipation work of the stator during the fixing process. By setting a pressure plate with adjustable height and a detachable bottom ring, the positions of multiple stators are limited, and the stators are fixed and protected.

[0012] The stator structure of the outer rotor motor adjusts the position of the fixing pad by setting an interception assembly. The moving rod drives the first interception rod, the second interception rod, and the third interception rod to move downward, adjusting the fixing pad to the compressed state and the natural state before and after. Furthermore, the fixing pad and the contact plate are adjusted to fix and support the winding, reducing the possibility of the winding becoming loose.

[0013] The stator structure of the outer rotor motor fixes and protects multiple stators and supports and fixes the winding by setting a contact mechanism and a connection mechanism. By setting the contact mechanism, the position of the fixing pad and the interception plate is controlled by the interception assembly to complete the support and fixing work of the winding. By setting the connection mechanism, the first stator and the third stator are fixed in contact with the bottom plate and the pressure plate, and multiple stators are fixed and protected. In this way, the possibility of looseness between the stators or the winding becoming loose is reduced. Description of the Drawings

[0014] Figure 1 Schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the bottom structure of the present invention; Figure 3 Schematic diagram of the connection mechanism structure of the present invention; Figure 4 Schematic diagram of the bottom structure of the connection mechanism of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the structure at A in; Figure 6 Schematic diagram of the contact mechanism structure of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the structure at B in; Figure 8 This is a schematic diagram of the interception component structure of the present invention.

[0015] In the figure: 1. First stator; 2. Connection mechanism; 201. Connection plate; 202. Bottom ring; 203. Gasket; 204. First through groove; 205. Enclosing plate; 206. Connecting rod; 207. Second through groove; 208. Bottom plate; 209. Adjusting rod; 210. Pressure plate; 211. Card slot; 3. Contact mechanism; 301. Fixed slot; 302. Communication hole; 303. Moving rod; 304. Interception component; 3041. First interception rod; 3042. Second interception rod; 3043. Positioning ring; 3044. Link; 3045. Third interception rod; 3046. Spring; 305. Fixed shaft; 306. Fixed pad; 307. Contact plate; 308. Joint; 4. Second stator; 5. Third stator. Specific embodiments

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0017] As Figures 1 - 8 shown, the present invention provides a technical solution: including a first stator 1; A second stator 4, the second stator 4 is arranged below the first stator 1; A third stator 5, the third stator 5 is arranged below the second stator 4; A contact mechanism 3, the contact mechanism 3 is arranged inside the first stator 1, and the contact mechanism 3 includes an interception component 304 and a fixed pad 306. The interception component 304 is used to control the fixed pad 306 to be in a natural state or a compressed state.

[0018] When the fixed pad 306 is in a natural state, the fixed pad 306 contacts the winding position to support and fix the winding; When the fixed pad 306 is in a compressed state, the fixed pad 306 is away from the winding position to facilitate the winding work.

[0019] A connection mechanism 2 is installed outside the first stator 1. The connection mechanism 2 is in contact with the inner wall of the second stator 4 and the inner wall of the third stator 5. There are multiple second stators 4.

[0020] Before the winding operation, adjust the contact mechanism 3 in the first stator 1, the multiple second stators 4, and the third stator 5, and then perform the winding operation. After the winding operation is completed, adjust the contact mechanism 3 to support and reinforce the winding area. Then connect the first stator 1, the multiple second stators 4, the third stator 5, and the connecting mechanism 2 to reinforce and support the multiple stators, thereby completing the installation work of the stator structure.

[0021] The contact mechanism 3 further includes: Fixing grooves 301, a plurality of fixing grooves 301 are provided, and the plurality of fixing grooves 301 are respectively provided inside the first stator 1, the second stator 4, and the third stator 5. A moving rod 303 is slidably connected inside the fixing groove 301. The moving rod 303 is connected to the intercepting component 304, and the moving rod 303 drives the intercepting component 304 to move up and down; Communication holes 302, the communication holes 302 penetrate through the inside of the first stator 1. A plurality of communication holes 302 are provided and are evenly arranged. The moving rod 303 is located in the communication holes 302. The communication holes 302 are also provided inside the second stator 4 and the third stator 5. The communication holes 302 can play a positioning role. The communication holes 302 are evenly arranged. By observing whether the communication holes 302 are exposed, it is possible to observe in real time whether the winding outside the first stator 1 is uniform or loose; Fixed shafts 305, fixed shafts 305 are installed inside the fixing grooves 301. The fixed shafts 305 are connected to fixing pads 306. The fixing pads 306 are made of elastic materials; Contact plates 307, the contact surfaces of the contact plates 307 with the winding are set as adhesive plates. The contact plates 307 are installed outside the fixing pads 306. The contact plates 307 are symmetrically arranged and are inclined. A plurality of fixed shafts 305, fixing pads 306, and contact plates 307 are provided. The contact plates 307 are in contact with the corresponding winding to reinforce the corresponding winding position; Connectors 308, the connectors 308 are installed at both ends of the fixing pads 306. The connectors 308 are arc-shaped. The connectors 308 are made of elastic materials. The intercepting component 304 presses the fixing pads 306 by contacting the arc-shaped connectors 308.

[0022] Before the winding operation, adjust the intercepting component 304. The intercepting component 304 squeezes the fixing pads 306, and the fixing pads 306 are in a compressed state, so that the fixing pads 306 and the contact plates 307 are away from the notch of the fixing groove 301 to provide a working space for winding. After the winding operation is completed, adjust the intercepting component 304 to separate the intercepting component 304 from the fixing pads 306. The fixing pads 306 return to their natural state, and the fixing pads 306 and the contact plates 307 are in contact with the external winding to support and fix the winding. Moreover, due to the friction between the fixing pads 306 and the winding, and the contact surfaces of the contact plates 307 with the winding are set as adhesive plates, the winding position can be reinforced, and the possibility of loosening between the winding and the stator can be reduced.

[0023] By setting up the contact mechanism 3, the winding is supported and protected, reducing the possibility of the winding becoming loose. And by setting up the interception component 304, the fixing pad 306 is in different states to complete the work of reserving winding space or fixing the winding. And a communication hole 302 is opened inside the first stator 1, which can play a positioning role. The communication holes 302 are evenly arranged, and it is possible to observe in real time whether the winding is uniform or loose.

[0024] The interception component 304 includes: A clamping ring 3043, the clamping ring 3043 is installed outside the moving rod 303. There are two clamping rings 3043, and both clamping rings 3043 are made of rubber. By manually pressing the moving rod 303, different clamping rings 3043 can enter the fixing groove 301; A first interception rod 3041, the first interception rod 3041 is installed outside the moving rod 303, and the first interception rod 3041 is arranged inside the fixing groove 301; A second interception rod 3042, the second interception rod 3042 is connected to the bottom of the moving rod 303, the second interception rod 3042 is arranged inside the second stator 4, a connecting rod 3044 is installed at the bottom of the second interception rod 3042, and there are multiple second interception rods 3042 and connecting rods 3044; A third interception rod 3045, the third interception rod 3045 is connected to the bottom of the connecting rod 3044, the third interception rod 3045 is arranged inside the third stator 5, a spring 3046 is installed at the bottom of the third interception rod 3045, and the spring 3046 is installed inside the third stator 5.

[0025] Manually press the moving rod 303, the clamping ring 3043 at the bottom gradually deforms and enters the fixing groove 301. The moving rod 303 drives the first interception rod 3041, the connecting rod 3044, the second interception rod 3042 and the third interception rod 3045 to move downward. The first interception rod 3041, the second interception rod 3042 and the third interception rod 3045 respectively slide outside the fixing pad 306 through the corresponding joints 308. The fixing pad 306 is squeezed and is in a compressed state at this time. At this time, the spring 3046 is squeezed.

[0026] Continue to manually press the moving rod 303, the clamping ring 3043 above gradually deforms and enters the fixing groove 301. The moving rod 303 drives the first interception rod 3041, the connecting rod 3044, the second interception rod 3042 and the third interception rod 3045 to move downward. The first interception rod 3041, the second interception rod 3042 and the third interception rod 3045 respectively slide downward through the corresponding fixing pads 306. The fixing pad 306 gradually returns to its natural state, and the fixing pad 306 and the contact plate 307 start to contact the external winding. At this time, the spring 3046 is squeezed.

[0027] The connecting mechanism 2 includes: A connecting plate 201, the connecting plate 201 is in contact with the inner wall of the first stator 1, and a second through groove 207 is formed inside the connecting plate 201; A bottom ring 202, the bottom ring 202 is installed at the bottom of the connecting plate 201, a gasket 203 is installed on the upper surface of the bottom ring 202, there are a plurality of gaskets 203 and they are evenly arranged, and a first through groove 204 is formed inside the bottom ring 202; A surrounding plate 205, the surrounding plate 205 is installed outside the connecting plate 201, and the surrounding plate 205 is set in an annular shape.

[0028] Before installing multiple stators, the first stator 1, multiple second stators 4 and the third stator 5 are connected by the contact mechanism 3, and then fixed by the stacking process. Manually remove the bottom ring 202 outside the connecting plate 201, manually install the first stator 1, multiple second stators 4 and the third stator 5 outside multiple connecting plates 201, and then use screws to fix the bottom ring 202 to the bottom of the connecting plate 201. The gasket 203 on the top of the bottom ring 202 is in contact with the bottom surface of the third stator 5.

[0029] The connecting mechanism 2 further includes: A connecting rod 206, the connecting rod 206 is installed outside the connecting plate 201, the connecting rod 206 is set as an arc-shaped rod, and a bottom plate 208 is installed at the bottom of the connecting rod 206; An adjusting rod 209, the adjusting rod 209 is installed on the top of the bottom plate 208, a pressing plate 210 is installed on the top of the adjusting rod 209, a clamping groove 211 is formed at the bottom of the pressing plate 210, and the pressing plate 210 presses and fixes the top of the first stator 1 under the drive of the adjusting rod 209.

[0030] Manually adjust the stroke of the adjusting rod 209 so that the pressing plate 210 presses and fixes on the top of the first stator 1, so as to reinforce the first stator 1, multiple second stators 4 and the third stator 5.

[0031] By setting the connecting mechanism 2, the positions of the first stator 1, multiple second stators 4 and the third stator 5 are fixed, reducing the possibility of looseness between the stators. There is a first through groove 204 between the surrounding plate 205 and the stator, and the surrounding plate 205 is not in direct contact with the stator, avoiding affecting the heat dissipation work of the stator during the fixing process. By setting the pressing plate 210 with adjustable height and the detachable bottom ring 202, the positions of multiple stators are limited, and the stators are fixed and protected.

[0032] Working principle: Before the winding work is carried out, adjust the contact mechanism 3 in the first stator 1, multiple second stators 4 and the third stator 5.

[0033] Before the winding operation, adjust the intercepting component 304. The intercepting component 304 presses the fixing pad 306, and the fixing pad 306 is in a compressed state, so that the fixing pad 306 and the contact plate 307 are away from the notch of the fixing groove 301, providing a working space for winding. After the winding operation is completed, adjust the intercepting component 304 to separate the intercepting component 304 from the fixing pad 306. The fixing pad 306 returns to its natural state, and the fixing pad 306 and the contact plate 307 contact the external winding, supporting and fixing the winding. Moreover, due to the friction between the fixing pad 306 and the winding, and the contact surface between the contact plate 307 and the winding is set as a viscous plate, the winding position can be strengthened, and the possibility of loosening between the winding and the stator can be reduced.

[0034] Manually press the moving rod 303, and the clamping ring 3043 at the bottom gradually deforms and enters the fixing groove 301. The moving rod 303 drives the first intercepting rod 3041, the connecting rod 3044, the second intercepting rod 3042 and the third intercepting rod 3045 to move downward. The first intercepting rod 3041, the second intercepting rod 3042 and the third intercepting rod 3045 respectively slide outside the fixing pad 306 through the corresponding joints 308, and the fixing pad 306 is squeezed and is in a compressed state at this time. At this time, the spring 3046 is squeezed.

[0035] Subsequently, perform a stacking process on the first stator 1, multiple second stators 4 and the third stator 5. After the stacking process, perform a winding process on it. After the winding operation is completed, adjust the contact mechanism 3 to support and strengthen the winding position.

[0036] Continue to manually press the moving rod 303, and the clamping ring 3043 above gradually deforms and enters the fixing groove 301. The moving rod 303 drives the first intercepting rod 3041, the connecting rod 3044, the second intercepting rod 3042 and the third intercepting rod 3045 to move downward. The first intercepting rod 3041, the second intercepting rod 3042 and the third intercepting rod 3045 respectively slide downward through the corresponding fixing pad 306, and the fixing pad 306 gradually returns to its natural state, and the fixing pad 306 and the contact plate 307 start to contact the external winding.

[0037] Before installing multiple stators, the first stator 1, multiple second stators 4 and the third stator 5 are connected through the contact mechanism 3 and then fixed by a stacking process. Manually remove the bottom ring 202 outside the connecting plate 201, manually install the first stator 1, multiple second stators 4 and the third stator 5 outside multiple connecting plates 201, and then use screws to fix the bottom ring 202 at the bottom of the connecting plate 201. The gasket 203 at the top of the bottom ring 202 contacts the bottom surface of the third stator 5.

[0038] Manually adjust the stroke of the adjusting rod 209 to press the pressure plate 210 against the top of the first stator 1, thereby strengthening the first stator 1, the plurality of second stators 4, and the third stator 5.

[0039] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. An outer-rotor motor stator structure, including a first stator (1), characterized in that: A second stator (4), the second stator (4) is arranged below the first stator (1); A third stator (5), the third stator (5) is arranged below the second stator (4); A contact mechanism (3), the contact mechanism (3) is arranged inside the first stator (1), the contact mechanism (3) includes an interception component (304) and a fixed pad (306), and the interception component (304) is used to control the fixed pad (306) to be in a natural state or a compressed state.

2. The stator structure of the outer-rotor motor according to claim 1, wherein: A connection mechanism (2) is installed outside the first stator (1), the connection mechanism (2) is in contact with the inner wall of the second stator (4), the connection mechanism (2) is in contact with the inner wall of the third stator (5), and a plurality of second stators (4) are provided.

3. The outer-rotor motor stator structure according to claim 1, characterized in that: The contact mechanism (3) further includes: A fixed groove (301), the fixed groove (301) is opened inside the first stator (1), a moving rod (303) is slidably connected inside the fixed groove (301), the moving rod (303) is connected to the interception component (304), and the moving rod (303) drives the interception component (304) to lift; Communication holes (302), the communication holes (302) penetrate through the inside of the first stator (1), a plurality of communication holes (302) are provided and are evenly arranged; A fixed shaft (305), a fixed shaft (305) is installed inside the fixed groove (301), the fixed shaft (305) is connected to the fixed pad (306), and the fixed pad (306) is made of an elastic material; Contact plates (307), the contact plates (307) are installed outside the fixed pad (306), the contact plates (307) are symmetrically arranged, and the contact plates (307) are inclined; Connectors (308), the connectors (308) are installed at both ends of the fixed pad (306), the connectors (308) are set in an arc shape, the connectors (308) are made of an elastic material, and the interception component (304) presses the fixed pad (306) by contacting the arc-shaped connectors (308).

4. The outer-rotor motor stator structure according to claim 3, characterized in that: The interception component (304) includes: A clamping ring (3043), the clamping ring (3043) is installed outside the moving rod (303), two clamping rings (3043) are provided, both of the two clamping rings (3043) are made of rubber material, and the moving rod (303) drives the clamping ring (3043) to enter the fixed groove (301); A first interception rod (3041), the first interception rod (3041) is installed outside the moving rod (303), and the first interception rod (3041) is arranged inside the fixed groove (301); The second intercepting rod (3042), the second intercepting rod (3042) is connected to the bottom of the moving rod (303), the second intercepting rod (3042) is arranged inside the second stator (4), and a connecting rod (3044) is installed at the bottom of the second intercepting rod (3042); The third intercepting rod (3045), the third intercepting rod (3045) is connected to the bottom of the connecting rod (3044), the third intercepting rod (3045) is arranged inside the third stator (5), a spring (3046) is installed at the bottom of the third intercepting rod (3045), and the spring (3046) is installed inside the third stator (5).

5. The outer rotor motor stator structure according to claim 2, characterized in that: The connecting mechanism (2) includes: A connecting plate (201), the connecting plate (201) is in contact with the inner wall of the first stator (1), and a second through groove (207) is formed inside the connecting plate (201); A bottom ring (202), the bottom ring (202) is installed at the bottom of the connecting plate (201), a gasket (203) is installed on the upper surface of the bottom ring (202), a plurality of gaskets (203) are provided and are evenly arranged, and a first through groove (204) is formed inside the bottom ring (202); A surrounding plate (205), the surrounding plate (205) is installed outside the connecting plate (201), and the surrounding plate (205) is arranged in an annular shape.

6. The outer rotor motor stator structure according to claim 5, characterized in that: The connecting mechanism (2) further includes: A connecting rod (206), the connecting rod (206) is installed outside the connecting plate (201), the connecting rod (206) is arranged as an arc-shaped rod, and a bottom plate (208) is installed at the bottom of the connecting rod (206); An adjusting rod (209), the adjusting rod (209) is installed at the top of the bottom plate (208), a pressing plate (210) is installed at the top of the adjusting rod (209), a clamping groove (211) is formed at the bottom of the pressing plate (210), and the pressing plate (210) presses and fixes the top of the first stator (1) under the drive of the adjusting rod (209).

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