Stator assembly, motor and air conditioning system

Abstract

The present application relates to a kind of stator assembly, motor and air conditioning system, belong to motor technical field, the stator assembly includes stator assembly and first package shell, stator assembly is plastic sealed in first package shell, one end of first package shell is closed to form closed end;First conductive sheet, first conductive sheet is electrically connected with stator assembly and one end of the first conductive sheet is out of closed end;Control panel and second package shell, control panel is plastic sealed in second package shell;Second conductive sheet, second conductive sheet is electrically connected with control panel and one end of the second conductive sheet is out of second package shell;Second package shell is connected on closed end by fastener, second conductive sheet and first conductive sheet are connected and conductive, the motor uses above-mentioned stator assembly, the air conditioning system uses above-mentioned motor, so that the stator assembly, motor and air conditioning system all have the advantages that dismounting process is simpler, production efficiency is higher.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of electric machines, in particular to a stator assembly, an electric machine and an air conditioning system. BACKGROUND

[0002] Nowadays, plastic-sealed electric machines are increasingly popular in the market because of their simple process and the ability to be applied to automatic production. At the same time, the control board is also a component in the plastic-sealed electric machine. The control board needs to be fixed with a terminal lug of the stator, and then soldered with the terminal lug. Finally, it is connected by soldering the terminal lug with the pin of the controller, or by soldering the terminal board and connecting the terminal board with the controller through the terminal plug. The operation of installing the control board on the stator assembly of the traditional plastic-sealed electric machine is relatively cumbersome. SUMMARY

[0003] The present application provides a stator assembly to solve the technical problem that the operation of installing the control board on the stator assembly of the plastic-sealed electric machine is relatively cumbersome in the prior art.

[0004] The present application is achieved by the following technical solution: a stator assembly, comprising:

[0005] a stator assembly and a first wrapping shell, the stator assembly is plastic-sealed in the first wrapping shell, one end of the first wrapping shell is closed to form a closed end;

[0006] a first conductive sheet, the first conductive sheet is electrically connected with the stator assembly, and one end of the first conductive sheet extends out of the closed end;

[0007] a control board and a second wrapping shell, the control board is plastic-sealed in the second wrapping shell;

[0008] a second conductive sheet, the second conductive sheet is electrically connected with the control board, and one end of the second conductive sheet extends out of the second wrapping shell;

[0009] the second wrapping shell is connected to the closed end by a fastener, and the second conductive sheet is in electrical connection with the first conductive sheet.

[0010] Further, in order to better achieve the present application, a first boss is provided on the closed end, the first boss is located outside the first wrapping shell, and the section of the first conductive sheet extending out of the first wrapping shell is placed on the first boss.

[0011] Further, in order to better achieve the present application, the first boss is circular in shape, and a step with a flat surface is provided on the first boss, and the first conductive sheet is in close contact with the surface of the step.

[0012] Further, in order to better realize the present application, the end of the second wrapping shell is provided with a circular groove matched with the first boss, a second boss is arranged on the inner wall of the circular groove, a recess is arranged on the second boss, the free end of the second conductive sheet is laid in the recess from the side wall of the recess, the first boss is inserted into the circular groove, the step is clamped in the recess, and the first conductive sheet is tightly attached to the second conductive sheet.

[0013] Further, in order to better realize the present application, the end of the second wrapping shell is provided with a circular groove matched with the first boss, a second boss is arranged on the inner wall of the circular groove, a recess is arranged on the second boss, the free end of the second conductive sheet is laid in the recess from the side wall of the recess, the first boss is inserted into the circular groove, the step is clamped in the recess, and the first conductive sheet is tightly attached to the second conductive sheet.

[0014] Further, in order to better realize the present application, the fastener comprises a bolt and a nut, the bolt is sequentially threaded through the first wrapping shell and the second wrapping shell and is screwed with the nut, the end face of the second wrapping shell away from the first wrapping shell is provided with a containing groove, and the nut is arranged in the containing groove.

[0015] Further, in order to better realize the present application, the stator assembly comprises a stator core, a coil and a framework, the two ends of the stator core are respectively provided with one of the frameworks to form a body, the coil is wound on the body, one of the frameworks is provided with a first groove body, the end of the first conductive sheet is inserted into the first groove body, and the lead wire of the coil is welded with the first conductive sheet.

[0016] Further, in order to better realize the present application, the control board is provided with a second groove body, the end of the second conductive sheet is inserted into the second groove body and is fixed by welding.

[0017] The present application also provides an electric machine adopting the above stator assembly.

[0018] The present application also provides an air conditioning system adopting the above electric machine.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] (1) the stator assembly provided by the application is wrapped in a first wrapping shell, the first conductive sheet is electrically connected with the stator assembly and extends out of the first wrapping shell, the control board is wrapped in a second wrapping shell, the second conductive sheet is electrically connected with the control board and extends out of the second wrapping shell, one end of the first wrapping shell is closed to form a closed end, the second wrapping shell wrapping the control board is installed on the closed end through a fastener and makes the second conductive sheet in contact with the first conductive sheet for electrical conduction, the stator assembly with the above structure only needs to operate the fastener to realize the disassembly and assembly of the control board in the stator assembly and the on-off of electricity, is simple and convenient to operate, simplifies the assembly process, and the structure of the whole stator assembly is simpler and more modular, and is more suitable for popularization and application;

[0021] (2) the motor provided by the application adopts the above stator assembly, so that the disassembly process of the motor is simpler;

[0022] (3) the air conditioning system provided by the application adopts the above motor, so that the air conditioning system also has the advantage that the disassembly process is simpler. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0024] Figure 1 is a structural schematic diagram of the motor in the embodiments of the application;

[0025] Figure 2 is an exploded view of the structure shown in Figure 1

[0026] Figure 3 is a structural schematic diagram of the structure composed of the first wrapping shell, the stator assembly and the first conductive sheet in the application;

[0027] Figure 4 is another view of the structure shown in Figure 3

[0028] Figure 5 is another view of the structure shown in Figure 4

[0029] Figure 6 is a local enlarged view of the B area in Figure 5

[0030] Figure 7 is an exploded view of the structure shown in Figure 3 ​​​​​

[0031] Figure 8 is Figure 7 is an exploded view of the structure shown in cooperation with the rotor and the end cover;

[0032] Figure 9 is a structural schematic diagram of the stator assembly in the embodiment of the present application;

[0033] Figure 10 is a partial enlarged view of area A in Figure 9

[0034] Figure 11 is an exploded view of the structure shown in Figure 9

[0035] Figure 12 is a structural schematic diagram of the installation structure of the second conductive sheet and the control plate in the present application;

[0036] Figure 13 is a sectional view of the structure shown in Figure 12

[0037] Figure 14 is a structural schematic diagram of the structure composed of the second wrapping shell, the control plate and the second conductive sheet in the present application;

[0038] Figure 15 is an exploded view of the structure shown in Figure 14

[0039] Figure 16 is another view of the structure shown in Figure 14

[0040] Figure 17 is a structural schematic diagram of the first conductive sheet and the second conductive sheet in the present application.

[0041] In the figure: 1-stator assembly; 101-stator core; 102-coil; 103-skeleton; 104-first slot body; 2-first wrapping shell; 3-first conductive sheet; 4-control plate; 401-second slot body; 5-second wrapping shell; 501-circular slot; 502-receiving slot; 6-second conductive sheet; 7-bolt; 8-nut; 9-first boss; 901-step; 10-second boss; 1001-groove; 11-bearing chamber; 12-first reinforcing rib; 13-second reinforcing rib; 14-rotor; 15-end cover; 16-bearing; 17-through hole; 18-rotating shaft. DETAILED DESCRIPTION

[0042] ​​​​​In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0043] Embodiment 1

[0044] The embodiment provides a stator assembly, which comprises a stator assembly 1, a first wrapping shell 2, a first conductive sheet 3, a control board 4, a second wrapping shell 5, a second conductive sheet 6 and a fastener, the first conductive sheet 3 and the second conductive sheet 6 are sheet structures capable of conducting electricity, and the first wrapping shell 2 and the second wrapping shell 5 are structures formed by injection molding.

[0045] The stator assembly 1 is plastic-wrapped in the first wrapping shell 2, and the first conductive sheet 3 is electrically connected with the stator assembly 1. Specifically, the first conductive sheet 3 is first electrically connected with the stator assembly 1, and then the whole is placed in a corresponding injection mold. After injection molding material is added, the injection molding material forms the first wrapping shell 2, one end of the first wrapping shell 2 is closed to form a closed end, and the other end of the first wrapping shell 2 is provided with a center hole. Part of the first conductive sheet 3 extends out of the closed end.

[0046] The control board 4 is plastic-wrapped in the second wrapping shell 5, and the second conductive sheet 6 is electrically connected with the control board 4. In addition, the control board 4 is also electrically connected with an electric wire for electricity input. The electric wire is laid through a wire pressing plate, and the whole composed of the wire pressing plate, the control board 4 and the second conductive sheet 6 is placed in a corresponding injection mold. After injection molding material is added, the injection molding material forms the second wrapping shell 5, and part of the second conductive sheet 6 extends out of the second wrapping shell 5.

[0047] During installation, the second wrapping shell 5 is installed on the closed end of the first wrapping shell 2 by using the fastener, and the second conductive sheet 6 is in electrical connection with the first conductive sheet 3. It is worth noting that the end of the first wrapping shell 2 provided with the center hole is an end cover mounting port for mounting an end cover 15.

[0048] The stator assembly with the above structure only needs to operate the fastener to install or remove the control board 4, and to make the stator assembly 1 and the control board 4 be in power-on or power-off state. During the whole process, no wiring is needed, the process is simple, the structure of the whole stator assembly is simpler and more modular, and the stator assembly is convenient to popularize and use.

[0049] It is worth noting that the number, shape and position of the first and second conductive pieces 3 and 6 are not limited as long as they can realize conduction without interference. The number of the first conductive pieces 3 corresponds to the number of the second conductive pieces 6. The distance between the conductive pieces is not limited.

[0050] Embodiment 2

[0051] In this embodiment, the first protrusion 9 is provided on the closed end and is located outside the first wrapping shell 2. The section of the first conductive piece 3 extending out of the first wrapping shell 2 is placed on the first protrusion 9. Specifically, the section of the first conductive piece 3 extending out of the first wrapping shell 2 is provided with an inverted "se" shaped structure. When the first wrapping shell 2 is injection molded, the injection material fills the inverted "se" shaped structure to form the first protrusion 9, and the inverted "se" shaped structure is located on the surface of the first protrusion 9. In this way, the first conductive piece 3 is stably connected to the surface of the first protrusion 9 and the first wrapping shell 2, thereby facilitating the conduction with the second conductive piece 6. The first protrusion 9 also positions the connection between the first conductive piece 3 and the second conductive piece 6.

[0052] Embodiment 3

[0053] In this embodiment, the first protrusion 9 is in the shape of a circular ring, and the first wrapping shell 2 is also a cylindrical shell. The first protrusion 9 is coaxially arranged on the closed end. In this way, the appearance of the entire first wrapping shell 2 is more beautiful and neat, and the positioning during assembly is more convenient.

[0054] The first protrusion 9 is provided with a step 901, which is actually a structure recessed on the surface of the first protrusion 9, and all surfaces of the step 901 are flat. The first conductive piece 3 is laid on the surface of the step 901 and tightly adheres to the surface of the step 901. Since the first protrusion 9 is in the shape of a ring and the surface of the first conductive piece 3 is flat, if the surface of the first conductive piece 3 tightly adheres to the surface of the first protrusion 9, the flat surface and the curved surface cannot be in good contact. Therefore, by providing the step 901, the first conductive piece 3 can be well attached to maintain the shape of the first conductive piece 3, thereby enabling the first conductive piece 3 to better adhere to the second conductive piece 6.

[0055] It is worth noting that the shape of the step 901 is not limited as long as the first conductive piece 3 can be stably laid on the surface of the step 901.

[0056] Embodiment 4

[0057] As a more optimal implementation of the above embodiment, in this embodiment, the second wrapping shell 5 is in a cylindrical structure, and one end of the second wrapping shell 5 is provided with a circular groove 501 matched with the first boss 9. When installing, the first boss 9 is inserted into the circular groove 501, so that the outer ring wall of the first boss 9 is in close contact with the inner wall of the circular groove 501, thereby realizing the positioning and limiting of the first wrapping shell 2 and the second wrapping shell 5.

[0058] The inner wall of the circular groove 501 is provided with a second boss 10, and the second boss 10 is provided with a groove 1001. The groove 1001 makes the second boss 10 form a "Z" shape structure, and the groove 1001 is arranged close to the groove wall of the circular groove 501. When the first boss 9 is inserted into the circular groove 501, the step 901 is inserted into the groove 1001. The free end of the second conductive sheet 6 extends from the groove wall of the groove 1001 and is laid in the groove 1001. The first conductive sheet 3 on the surface of the step 901 is in close contact with the second conductive sheet 6 in the groove 1001. By the fastening force of the fastener, the first wrapping shell 2 and the second wrapping shell 5 can be stably connected together, and the first conductive sheet 3 and the second conductive sheet 6 can be tightly contacted for conduction.

[0059] With the above structure, the electrical connection between the control panel 4 and the stator assembly 1 can be realized through the second conductive sheet 6 and the first conductive sheet 3. No electric wire is needed, and only the fastener needs to be operated. The control panel 4 can be stably installed on the stator assembly, and the electrical connection between the control panel 4 and the stator assembly 1 can be realized. The structure is more modular, and the overall disassembly process is simpler, so that the production efficiency of the stator assembly can be improved.

[0060] Embodiment 5:

[0061] As a more optimal implementation of the above embodiment, in this embodiment, a bearing chamber 11 is arranged on the side of the closed end located in the first wrapping shell 2. It is worth noting that the design of the closed end is also to facilitate the installation of the bearing 16 and further simplify the installation process of the stator assembly.

[0062] Since the rotor 14 of the motor needs to be supported by the bearing 16 when it is installed in the stator assembly, the bearing chamber 11 is used to install the bearing 16. In order to strengthen the overall structural strength of the bearing chamber 11, a first reinforcing rib 12 is arranged between the outer wall of the bearing chamber 11 and the inner wall of the first wrapping shell 2. The number of the first reinforcing rib 12 is multiple and is distributed in a circular array around the center axis of the bearing chamber 11.

[0063] The bearing chamber 11 is coaxial with the center hole, and the bearing chamber 11 protrudes outwardly from the closed end to form a protruding part, and the bearing chamber 11 is located in the first boss 9, and a second reinforcing rib 13 is arranged between the outer wall of the protruding part (i.e. the outer wall of the bearing chamber 11) and the inner wall of the first boss 9, and the number of the second reinforcing rib 13 is also multiple and is arranged in a circular array with the center of the bearing chamber 11 as the central axis. In this way, the structural strength of the bearing chamber 11 can be further enhanced.

[0064] Embodiment 6:

[0065] In this embodiment, the fastener is provided as a bolt 7 and a nut 8, and a through hole 17 is arranged on the first wrapping shell 2 and the second wrapping shell 5 near the edge. During assembly, the through hole 17 on the first wrapping shell 2 is aligned with the through hole 17 on the second wrapping shell 5, the bolt 7 passes through the through hole 17 on the first wrapping shell 2 and the through hole 17 on the second wrapping shell 5 in turn, and the bolt 7 extends out of the through hole 17 and is screwed with the nut 8. The fastener of this structure is convenient to disassemble and assemble, and can connect the first wrapping shell 2 and the second wrapping shell 5 together.

[0066] In order to make the structure of the stator assembly provided in this embodiment more compact, in this embodiment, a receiving groove 502 is arranged on the end face of the second wrapping shell 5 away from the first wrapping shell 2, and the nut 8 is arranged in the receiving groove 502.

[0067] It is worth noting that the number of the fastener is multiple, so that the first wrapping shell 2 and the second wrapping shell 5 can be stably connected together.

[0068] In this embodiment, the shape and size of the through hole 17 are not limited, as long as the bolt 7 can pass through without interference.

[0069] Embodiment 7:

[0070] In this embodiment, the stator assembly 1 includes a stator core 101, a coil 102 and a skeleton 103, the stator core 101 has two ends each of which is provided with a skeleton 103 to form a body, the coil 102 is wound on the body, one of the skeletons 103 is provided with a first slot 104, and one end of the first conductive sheet 3 is inserted into the first slot 104, and the lead wire of the coil 102 is connected to the first conductive sheet 3 by soldering.

[0071] With this structure, the first conductive sheet 3 can be stably connected to the stator assembly 1 and conduct electricity.

[0072] Embodiment 8:

[0073] As a specific implementation of the above embodiment, in this embodiment, the control panel 4 is provided with a second slot body 401, and the end of the second conductive sheet 6 is inserted into the second slot body 401 and fixed by welding. The second slot body 401 can position the installation of the second conductive sheet 6 on the control panel 4. With this structure, the second conductive sheet 6 can be stably connected to the control panel 4 and electrically connected to the control panel 4.

[0074] It is worth noting that the position of the second slot body 401 can be any position on the control panel 4 as long as it can achieve electrical connection between the second conductive sheet 6 and the control panel 4. In addition, the shape of the second slot body 401 is not limited in this embodiment.

[0075] Embodiment 9:

[0076] This embodiment provides an electric motor which adopts the above-mentioned stator assembly. In addition, the electric motor also includes a rotor 14, a rotating shaft 18, a bearing 16, and an end cover 15. The rotor 14 is rotatably installed at the center of the stator assembly 1. The rotating shaft 18 is connected to the rotor 14 and located at the center of the rotor 14. One end of the rotating shaft 18 is rotatably installed in the bearing chamber 11 through a bearing 16. The other end of the rotating shaft 18 passes through the center hole and extends through the end cover 15. In addition, the rotating shaft 18 is also connected to the end cover 15 through a bearing 16.

[0077] The end cover 15 is also provided with a through hole 17 for passing through the bolt 7. During installation, the bolt 7 first passes through the through hole 17 on the end cover 15, then passes through the through hole 17 on the first wrapping shell 2, and finally passes through the through hole 17 on the second wrapping shell 5 and extends out to be screwed with the nut 8.

[0078] The end surface of the first wrapping shell 2 away from the second wrapping shell 5 is provided with a mounting slot. The center hole is arranged at the center of the bottom of the mounting slot. The mounting slot is an end cover mounting slot for mounting the end cover 15. The end cover 15 is mounted in the end cover mounting slot with interference, so that the structure of the entire electric motor is more compact.

[0079] Since the electric motor adopts the above-mentioned stator assembly, the electric motor has the advantages of more convenient disassembly and assembly process and higher production efficiency.

[0080] Embodiment 10:

[0081] This embodiment provides an air conditioning system which adopts the above-mentioned electric motor. Therefore, the air conditioning system also has the advantages of more convenient disassembly and assembly process and higher production efficiency.

[0082] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A stator assembly, characterized in that: include: A stator assembly and a first wrapping shell, wherein the stator assembly is plastic-sealed in the first wrapping shell, and one end of the first wrapping shell is sealed to form a closed end; a first conductive sheet, the first conductive sheet being electrically connected to the stator assembly and having one end extending out of the closed end; A control board and a second packaging shell, wherein the control board is plastic-sealed in the second packaging shell; a second conductive sheet, the second conductive sheet being electrically connected to the control board and having one end extending out of the second wrapping shell; The second wrapping shell is connected to the closed end by a fastener, and the second conductive sheet is connected to the first conductive sheet for electrical conduction; A first boss is provided on the closed end, the first boss is located outside the first wrapping shell, and a section of the first conductive sheet extending out of the first wrapping shell is placed on the first boss; The first boss is in a circular ring shape, and a step with a flat surface is provided on the first boss, and the first conductive sheet is in close contact with the step surface; The end of the second wrapping shell is provided with a circular groove adapted to the first boss, the inner wall of the circular groove is provided with a second boss, the second boss is provided with a groove, the free end of the second conductive sheet passes through the side wall of the groove and is laid in the groove, the first boss is inserted into the circular groove, the step is stuck in the groove, and the first conductive sheet is tightly attached to the second conductive sheet.

2. A stator assembly according to claim 1, characterized in that: A bearing chamber is provided on one side of the closed end located in the first wrapping shell, a first reinforcing rib is provided between the outer wall of the bearing chamber and the inner wall of the first wrapping shell, the bearing chamber protrudes outward from the closed end and is located in the first boss, and a second reinforcing rib is provided between the outer wall of the bearing chamber and the first boss.

3. A stator assembly according to any one of claims 1-2, characterized in that: The fastener includes a bolt and a nut. The bolt passes through the first wrapping shell and the second wrapping shell in sequence and is threadedly connected to the nut. The end face of the second wrapping shell away from the first wrapping shell is provided with a receiving groove, and the nut is placed in the receiving groove.

4. A stator assembly according to any one of claims 1-2, characterized in that: The stator assembly includes a stator core, a coil and a frame. A frame is installed at each end of the stator core to form a body. The coil is wound on the body. A first slot is provided on one of the frames. The end of the first conductive sheet is inserted into the first slot, and the lead wire of the coil is welded to the first conductive sheet.

5. A stator assembly according to any one of claims 1-2, characterized in that: A second slot body is provided on the control board, and an end portion of the second conductive sheet is inserted into the second slot body and fixed by welding.

6. A motor, characterized in that: The stator assembly comprises the stator assembly according to any one of claims 1 to 5.

7. An air conditioning system, characterized in that: Including the motor according to claim 6.

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