Motor and aerator using same

Abstract

The motor comprises a motor body, the motor body comprises an upper end cover, a lower end cover clamped at the bottom of the upper end cover and a stator assembly arranged in the upper end cover, the bottom of the upper end cover is provided with a first outer edge extending outwards, and the outer edge of the lower end cover is provided with a second outer edge recessed downwards. And the first outer edge and the second outer edge are in contact fastening connection. According to the utility model, the structure design is reasonable, the second outer edge of the outer edge of the lower end cover is designed to be in a downward concave form, so that the lower end cover can be directly clamped at the bottom of the upper end cover, and the first outer edge and the second outer edge are assembled and connected through the fastener, so that the connection between the upper end cover and the lower end cover is realized; the mode of welding spigots at the inner connecting positions of the upper end cover and the lower end cover is omitted, the assembly efficiency is improved, the assembly difficulty is reduced, and a large amount of time cost and money cost are saved.

Description

Technical Field

[0001] The utility model relates to the field of oxygenators, in particular to a motor and an oxygenator using the motor. Background Art

[0002] Aerators are machines commonly used in fish farming. They are mainly used to increase the oxygen content in the water to ensure that the fish in the water will not be deprived of oxygen. At the same time, they can also inhibit the growth of anaerobic bacteria in the water and prevent the deterioration of the pond water from threatening the living environment of the fish. Aerators generally rely on their own air pumps to pump air into the water to achieve the purpose of increasing the oxygen content in the water.

[0003] An aerator generally includes a motor and a controller connected to the motor, wherein the motor includes an outer rotor and a stator arranged in the outer rotor, the outer rotor includes an upper end cover and a lower end cover, the outer edge of the lower end cover is in an upwardly protruding state, and the upper and lower end covers are connected by welding stoppers at the internal connection of the upper and lower end covers. Although this method can play a connecting role, it consumes a large amount of time and money costs, greatly reduces the assembly efficiency, and increases the difficulty of assembly. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a motor and an aerator using the motor in view of the current status of the prior art.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: a motor, including a motor body, the motor body including an upper end cover, a lower end cover clamped to the bottom of the upper end cover and a stator assembly arranged in the upper end cover, the bottom of the upper end cover is provided with a first outer edge extending outward, the outer edge of the lower end cover is provided with a second outer edge recessed downward, and the first outer edge and the second outer edge are in contact and fastened connection.

[0006] Preferably, the stator assembly includes a stator and a stator output shaft penetrating the stator, one end of the stator output shaft is connected to the inner bottom of the lower end cover, and the other end of the stator output shaft extends out of the top of the upper end cover.

[0007] Preferably, a first bearing is sleeved on one end of the stator output shaft close to the lower end cover, a bearing sleeve is sleeved on the outer surface of the first bearing, and a groove matching with the bearing sleeve is provided at the inner bottom of the lower end cover.

[0008] Preferably, a through hole is provided on the top of the upper end cover, a shaft sleeve is provided on the through hole, the shaft sleeve is sleeved on the outside of the stator output shaft, a second bearing is provided near the bottom of the shaft sleeve, and the second bearing is sleeved on the stator output shaft.

[0009] Preferably, at least four outwardly extending fixing columns for welding the impeller are provided at the bottom of the lower end cover.

[0010] Preferably, the stator comprises an inner disk and a winding assembly arranged outside the inner disk, and the winding assembly comprises a plurality of winding slots arranged around the outer ring of the inner disk for winding the coil.

[0011] Preferably, the inner wall of the upper end cover is provided with a magnetic steel that cooperates with the winding assembly.

[0012] Preferably, the inner disk is provided with a junction box for preventing oil leakage, a fixing plate is provided on each side of the junction box, and the fixing plate and the junction box are connected by screws; a glue injection port for glue injection is provided on the junction box, and at least three wiring holes for wiring are also provided on the junction box.

[0013] Preferably, an aerator is provided with a controller on the motor, the controller comprises an upper shell and a lower shell, a downwardly extending connecting piece is provided at the bottom of the lower shell, the connecting piece is sleeved on the outside of the shaft sleeve, and one end of the stator output shaft away from the lower end cover is inserted into the lower shell; an aluminum plate for heat dissipation is provided on the top inner wall of the upper shell, and a PCB board is connected under the aluminum plate.

[0014] Compared with the prior art, the advantages of the utility model are: by designing the second outer edge of the outer edge of the lower end cover to be concave downward, the lower end cover can be directly snapped onto the bottom of the upper end cover, and the first outer edge and the second outer edge are assembled and connected by fasteners, thereby realizing the connection between the upper end cover and the lower end cover, eliminating the method of welding the stopper at the internal connection of the upper and lower end covers, improving the assembly efficiency, reducing the difficulty of assembly, and saving a lot of time and money costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the exploded structure of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the stator assembly of the utility model.

[0019] Figure numerals: 1. upper end cover; 11. first outer edge; 12. through hole; 2. lower end cover; 21. second outer edge; 22. groove; 23. fixing column; 3. stator; 31. inner disk; 32. winding assembly; 321. winding groove; 4. stator output shaft; 5. first bearing; 6. bearing sleeve; 7. sleeve; 8. second bearing; 9. magnet; 10. junction box; 101. glue filling port; 102. wiring hole; 13. fixing plate; 14. controller; 141. upper shell; 142. lower shell; 1421. connector; 15. aluminum plate; 16. PCB board. DETAILED DESCRIPTION

[0020] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0021] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back... are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] Moreover, some of the above-mentioned terms may be used to express other meanings besides indicating orientation or positional relationships. For example, the term "on" may also be used to indicate a certain dependency or connection relationship in certain circumstances. A person skilled in the art may understand the specific meanings of these terms in the present utility model according to the specific circumstances.

[0023] In addition, the terms "install", "set", "provided with", "connect", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. The connection methods involved in this article are prior arts, without any improvement, and are all common knowledge of those skilled in the art. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0024] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0025] like Figures 1 to 4As shown, the utility model provides a motor, including a motor body; specifically, the motor body includes an upper end cover 1, a lower end cover 2 clamped at the bottom of the upper end cover 1, and a stator assembly arranged in the upper end cover 1, the bottom of the upper end cover 1 is provided with a first outer edge 11 extending outward, the outer edge of the lower end cover 2 is provided with a second outer edge 21 recessed downward, the first outer edge 11 and the second outer edge 21 are contacted and fastened, and the first outer edge 11 and the second outer edge 21 are connected by fasteners evenly distributed in a ring around the first outer edge 11.

[0026] The upper end cover 1 and the lower end cover 2 are both made of iron. In the prior art, they are usually made of aluminum or plastic, but aluminum is easy to rot in seawater, and plastic has insufficient torque, is easy to deform, and has insufficient density, resulting in a short service life of the motor. The advantages of using iron materials instead are: corrosion resistance in seawater, increased strength, and drop resistance, avoiding oil leakage and other problems caused by drops and collisions during transportation.

[0027] The stator assembly includes a stator 3 and a stator output shaft 4 penetrating the stator 3 ; specifically, one end of the stator output shaft 4 is connected to the inner bottom of the lower end cover 2 , and the other end of the stator output shaft 4 extends out of the top of the upper end cover 1 .

[0028] The end of the stator output shaft 4 close to the lower end cover 2 is sleeved with a first bearing 5 , and the outer surface of the first bearing 5 is sleeved with a bearing sleeve 6 . The inner bottom of the lower end cover 2 is provided with a groove 22 matched with the bearing sleeve 6 .

[0029] The top of the upper end cover 1 is provided with a through hole 12 , on which a shaft sleeve 7 is provided. The shaft sleeve 7 is sleeved on the outside of the stator output shaft 4 . A second bearing 8 is provided near the bottom of the shaft sleeve 7 , and the second bearing 8 is sleeved on the stator output shaft 4 .

[0030] The bottom of the lower end cover 2 is provided with at least four fixing columns 23 extending outwards for welding the impeller.

[0031] The stator 3 includes an inner disk 31 and a winding assembly 32 arranged outside the inner disk 31 . The winding assembly 32 includes a plurality of winding slots 321 arranged around the outer circle of the inner disk 31 for winding coils.

[0032] The inner wall of the upper end cover 1 is provided with a magnetic steel 9 that cooperates with the winding assembly 32. When the motor is working, the coil is energized and conductive to generate a magnetic field that acts on the magnetic steel 9, so that the upper end cover 1 and the lower end cover 2 rotate under the action of the stator magnetic field. The upper end cover 1 and the lower end cover 2 are equivalent to rotors, thereby realizing the motor driving the air pump.

[0033] The inner disk 31 is provided with a junction box 10 for preventing oil leakage, and a fixing plate 13 is provided on each side of the junction box 10. The fixing plate 13 is "L" shaped, and one end of the fixing plate 13 is fixedly connected to the inner disk 31, and the other end of the fixing plate 13 is connected to the junction box 10 by screws; the junction box 10 is provided with a glue injection port 101 for injecting glue, and the junction box 10 is also provided with at least three wiring holes 102 for wiring. The use principle of the junction box 10 is: glue is injected into the junction box 10 through the glue injection port 101, which plays a sealing role, and then the end of the coil harness is inserted into the junction box 10 through the wiring hole 102. Since the end of the harness will leak oil, the function of the junction box 10 is to prevent oil leakage.

[0034] An aerator, a controller 14 is provided on a motor, the controller 14 comprises an upper shell 141 and a lower shell 142, a downwardly extending connector 1421 is provided at the bottom of the lower shell 142, the connector 1421 is sleeved on the outside of the shaft sleeve 7, and one end of the stator output shaft 4 away from the lower end cover 2 is inserted into the lower shell 142; an aluminum plate 15 for heat dissipation is provided on the top inner wall of the upper shell 141, and a PCB board 16 is connected below the aluminum plate 15.

[0035] The advantages of the utility model are as follows: by designing the second outer edge 21 of the outer edge of the lower end cover 2 to be concave downward, the lower end cover 2 can be directly snapped onto the bottom of the upper end cover 1, and the first outer edge 11 and the second outer edge 21 are assembled and connected by fasteners, thereby realizing the connection between the upper end cover 1 and the lower end cover 2, eliminating the need for welding stoppers at the internal connection of the upper and lower end covers 2, thereby improving assembly efficiency, reducing assembly difficulty, and saving a lot of time and money costs.

[0036] In the description of this specification, reference is made to the terms "one embodiment", "some embodiments", "examples", "specific examples", etc.

[0037] The description of "example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0038] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the prior art, which will not be described in detail here.

[0039] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, various changes and variations can be made in the specific implementation methods and application scopes based on the ideas of the present invention. The content of this specification should not be understood as a limitation on the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A motor, comprising a motor body, characterized in that: The motor body includes an upper end cover, a lower end cover clamped to the bottom of the upper end cover, and a stator assembly arranged in the upper end cover. The bottom of the upper end cover is provided with a first outer edge extending outward, and the outer edge of the lower end cover is provided with a second outer edge recessed downward. The first outer edge and the second outer edge are in contact and fastened connection.

2. A motor according to claim 1, characterized in that: The stator assembly comprises a stator and a stator output shaft penetrating the stator, one end of the stator output shaft is connected to the inner bottom of the lower end cover, and the other end of the stator output shaft extends out of the top of the upper end cover.

3. A motor according to claim 2, characterized in that: The end of the stator output shaft close to the lower end cover is sleeved with a first bearing, the first bearing outer shell is sleeved with a bearing sleeve, and the inner bottom of the lower end cover is provided with a groove matched with the bearing sleeve.

4. A motor according to claim 2, characterized in that: The top of the upper end cover is provided with a through hole, on which a shaft sleeve is provided, which is sleeved on the outside of the stator output shaft, and a second bearing is provided near the bottom of the shaft sleeve, which is sleeved on the stator output shaft.

5. The motor according to claim 1, characterized in that: The bottom of the lower end cover is provided with at least four fixing columns extending outwards and used for welding the impeller.

6. A motor according to claim 2, characterized in that: The stator comprises an inner disk and a winding assembly arranged outside the inner disk, wherein the winding assembly comprises a plurality of winding slots arranged around the outer ring of the inner disk and used for winding coils.

7. A motor according to claim 6, characterized in that: The inner wall of the upper end cover is provided with a magnetic steel that matches the winding assembly.

8. The motor according to claim 6, characterized in that: The inner disk is provided with a junction box for preventing oil leakage, and a fixing plate is provided on each side of the junction box, and the fixing plate and the junction box are connected by screws; the junction box is provided with a glue injection port for glue injection, and the junction box is also provided with at least three wiring holes for wiring.

9. An oxygenator, characterized in that: A motor comprising any one of claims 1 to 8, wherein the motor is provided with a controller, the controller comprising an upper shell and a lower shell, a downwardly extending connecting piece is provided at the bottom of the lower shell, the connecting piece is sleeved on the outside of the shaft sleeve, and one end of the stator output shaft away from the lower end cover is inserted into the lower shell; an aluminum plate for heat dissipation is provided on the inner wall at the top of the upper shell, and a PCB board is connected under the aluminum plate.

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