Stator assembly and motor

Abstract

This utility model discloses a stator assembly and a motor. The stator assembly includes: a mounting frame; a winding disposed on the mounting frame and having a connecting lead at one end, the connecting lead having an insulating layer on its surface; and an electrical connector disposed on the mounting frame and forming a limiting groove, the limiting groove being adapted to receive a portion of the connecting lead, the limiting groove having a piercing portion adapted to contact the insulating layer to pierce the insulating layer, thereby electrically connecting the electrical connector to the connecting lead. The stator assembly designed according to this utility model, by designing a limiting groove in the electrical connector to limit the movement of the connecting lead, and by designing a piercing portion in the limiting groove, allows the electrical connector to pierce the terminal during installation onto the mounting frame, thereby electrically connecting the connecting lead to the electrical connector. This reduces the assembly time between the connecting lead and the electrical connector, improving motor manufacturing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of motors, and in particular to a stator assembly and a motor. Background Technology

[0002] In related technologies, the connection between the enameled wire of the motor stator winding and the motor interface connector needs to be made multiple times, which has problems such as many parts, complex processes, low manufacturing efficiency, low connection reliability, high cost, large local size of the motor, and installation interference. In some existing technologies, the enameled wire of the motor stator winding is directly welded to the motor interface connector. The welding process requires high precision, and the welding connection method also requires additional welding fixtures, which makes the assembly time of the enameled wire of the motor stator winding and the motor interface connector still relatively long, and the effect of improving the motor manufacturing efficiency is limited. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a stator assembly. The stator assembly designed according to this invention uses a limiting groove in the electrical connector to limit the movement of the connecting lead, and a piercing part is designed in the limiting groove so that the electrical connector can pierce the terminal during installation onto the mounting frame, allowing the connecting lead to electrically connect with the electrical connector. This reduces the assembly time between the connecting lead and the electrical connector, and improves motor manufacturing efficiency.

[0004] This utility model also proposes a motor having the above-mentioned stator assembly.

[0005] The stator assembly according to this utility model includes: a mounting frame; a winding, the winding being disposed on the mounting frame and having a connecting lead at one end, the connecting lead having an insulating layer on its surface; and an electrical connector, the electrical connector being disposed on the mounting frame and forming a limiting groove, the limiting groove being adapted to receive a portion of the connecting lead, the limiting groove having a piercing portion, the piercing portion being adapted to contact the insulating layer to pierce the insulating layer, thereby electrically connecting the electrical connector to the connecting lead.

[0006] The stator assembly designed according to this utility model features a limiting groove in the electrical connector to limit the movement of the connecting lead and prevent it from moving. A piercing part is also designed in the limiting groove, allowing the electrical connector to pierce the terminal during installation onto the mounting frame, thus electrically connecting the connecting lead to the connector. This terminal-piercing method accelerates the electrical connection between the connecting lead and the connector, thereby improving motor manufacturing efficiency. Furthermore, the assembly method of the connecting lead and the connector is simple, requiring low precision during installation. It achieves the connection and electrical connection without the need for other connecting devices, reducing assembly time and cost, and further improving motor manufacturing efficiency.

[0007] According to some embodiments of the present invention, the electrical connector includes: a connecting terminal extending along a first direction, with a connecting pin protruding from one end in the first direction; and a connector connected to the other end of the connecting terminal.

[0008] According to some embodiments of the present invention, the limiting groove extends along a first direction, and the end of the connecting foot away from the connector has an open opening communicating with the limiting groove, and the connecting foot is adapted to be received in the mounting groove along the first direction.

[0009] According to some embodiments of the present invention, the two side walls of the limiting groove in the second direction are adapted to contact the connecting lead wire, and the second direction intersects the first direction; the limiting groove includes a receiving channel and a guiding channel connected in sequence in the first direction, one end of the guiding channel is connected to the receiving channel and the other end forms the opening; wherein the width of the guiding channel in the second direction is greater than the width of the receiving channel in the second direction.

[0010] According to some embodiments of the present invention, the sidewall of the receiving channel in the second direction is connected to the sidewall of the guiding channel in the second direction by a connecting surface, the connecting surface extends in the second direction, and the part of the connecting surface that connects to the sidewall of the receiving channel in the second direction is the puncture portion.

[0011] According to some embodiments of the present invention, the width of the guide channel gradually increases in the second direction in the direction toward the opening.

[0012] According to some embodiments of the present invention, the sidewall of the guide channel in the second direction is constructed as an arc-shaped surface.

[0013] According to some embodiments of the present invention, the connecting terminals are configured in multiple ways, with at least two of the connecting terminals having different configurations.

[0014] The following is a brief description of a motor according to another embodiment of the present invention.

[0015] The motor according to this utility model includes the stator assembly described in any of the above embodiments. Since the motor according to this utility model is provided with the stator assembly of the above embodiments, the motor has higher manufacturing efficiency.

[0016] In summary, the stator assembly designed according to this utility model uses a limiting groove in the electrical connector to limit the movement of the connecting lead and prevent it from moving. A piercing part is also designed in the limiting groove, allowing the electrical connector to pierce the terminal during installation onto the mounting frame, thus electrically connecting the connecting lead to the connector. This terminal-piercing method accelerates the electrical connection between the connecting lead and the connector, thereby improving motor manufacturing efficiency. Furthermore, the assembly method of the connecting lead and the connector is simple, requiring low precision during installation. It achieves the connection and electrical connection without the need for other connecting devices, reducing assembly time and cost, and further improving motor manufacturing efficiency.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a structural diagram of a motor according to an embodiment of the present utility model.

[0020] Figure 2 This is a partial exploded view of the stator assembly according to an embodiment of the present utility model.

[0021] Figure 3 yes Figure 2 Enlarged view of the structure at the connecting lead in the middle.

[0022] Figure 4 This is an enlarged view of the portion of the connecting foot that forms a limiting groove according to an embodiment of the present utility model.

[0023] Figure label:

[0024] 1000, Electric motor;

[0025] 1. Stator assembly;

[0026] 10. Mounting frame; 10a. Mounting slot;

[0027] 21. Connect the leads;

[0028] 30. Electrical connector; 301. Puncture portion; 31. Connecting terminal; 311. Connecting foot; 311a. Limiting groove; 311b. Receiving channel; 311c. Guide channel; 311d. Opening; 310. Connecting surface; 32. Connector. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In related technologies, the connection between the enameled wire of the motor stator winding and the motor interface connector needs to be made multiple times, which has problems such as many parts, complex processes, low manufacturing efficiency, low connection reliability, high cost, large local size of the motor, and installation interference. In some existing technologies, the enameled wire of the motor stator winding is directly welded to the motor interface connector. The welding process requires high precision, and the welding connection method also requires additional welding fixtures, which makes the assembly time of the enameled wire of the motor stator winding and the motor interface connector still relatively long, and the effect of improving the motor manufacturing efficiency is limited.

[0035] The following is for reference. Figures 1-4 The stator assembly 1 according to an embodiment of the present utility model is described.

[0036] like Figure 2 As shown, the stator assembly 1 according to this utility model includes: a mounting frame 10, a winding, and an electrical connector 30. The winding is disposed on the mounting frame 10 and has a connecting lead 21 at its end. The surface of the connecting lead 21 is provided with an insulating layer. The electrical connector 30 is disposed on the mounting frame 10 and forms a limiting groove 311a. The limiting groove 311a is adapted to receive a portion of the connecting lead 21. The limiting groove 311a forms a piercing portion 301, which is adapted to contact the insulating layer to pierce the insulating layer, so that the electrical connector 30 is electrically connected to the connecting lead 21. Specifically, the stator assembly 1 generally has a stator core, on which a mounting frame 10 is adapted to be installed for mounting the winding. The mounting frame 10 can be constructed as a plurality of frames arranged sequentially along the circumference of the stator core. One of the mounting frames 10 is used to lead out the connecting lead 21 of the winding. Alternatively, the mounting frame 10 is an annular structure located radially inside the stator core, with part of the mounting frame 10 used to lead out the connecting lead 21 of the winding. The connecting lead 21 needs to be electrically connected to the electrical connector 30 so that the electrical connector 30 can electrically connect the winding to other structures.

[0037] Here, the electrical connector 30 can be installed on the mounting frame 10. During the installation of the electrical connector 30 on the mounting frame 10, the connecting lead 21 can cooperate with the limiting groove 311a of the electrical connector 30, so that the electrical connector 30 limits the connecting lead 21, preventing the connecting lead 21 from moving, and the piercing part 301 at the limiting groove 311a pierces the insulation layer, thereby piercing the terminal and making the connecting lead 21 electrically connected to the electrical connector 30.

[0038] The stator assembly 1 designed according to this utility model has a limiting groove 311a designed in the electrical connector 30 to limit the connecting lead 21 and prevent the connecting lead 21 from moving. A piercing part 301 is designed in the limiting groove 311a so that the electrical connector 30 can pierce the terminal during the installation of the mounting frame 10, so that the connecting lead 21 and the electrical connector 30 can be electrically connected. The piercing of the terminal can speed up the electrical connection between the connecting lead 21 and the electrical connector 30, thereby improving the manufacturing efficiency of the motor 1000. In addition, the assembly method of the connecting lead 21 and the electrical connector 30 is simple, the precision requirements during the installation process are low, and the cooperation and electrical connection between the connecting lead 21 and the electrical connector 30 can be realized without the participation of other connecting devices, reducing the assembly time and cost of the connecting lead 21 and the electrical connector 30, and further improving the manufacturing efficiency of the motor 1000.

[0039] In some embodiments, the insulating layer on the surface of the connecting lead 21 is made of a relatively soft material that can be deformed or detached under the force of the relatively sharp puncture portion 301 to expose at least a portion of the surface of the connecting lead 21, so that the connecting lead 21 can be electrically connected to the electrical connector 30.

[0040] In some embodiments, the mounting frame 10 is made of insulating material.

[0041] According to some embodiments of this utility model, such as Figure 3 As shown, the electrical connector 30 has a protruding connecting foot 311, which forms a limiting groove 311a. The mounting frame 10 has a mounting groove 10a suitable for accommodating the connecting foot 311, and at least a portion of the connecting lead 21 extends into the mounting groove 10a. Specifically, the connecting foot 311 is inserted into the mounting groove 10a to connect the electrical connector 30 to the mounting frame 10, and at least a portion of the connecting lead 21 extends into the mounting groove 10a. Simultaneously, the limiting groove 311a is located on the connecting foot 311, so that when the connecting foot 311 is inserted into the mounting groove 10a, the limiting groove 311a can contact and limit the connecting lead 21, allowing the piercing part 301 to pierce the insulation layer on the surface of the connecting lead 21, thereby achieving an electrical connection between the connecting lead 21 and the electrical connector 30. The insertion connection method between the electrical connector 30 and the mounting frame 10 is simple and easy to operate, improving the manufacturing efficiency of the motor 1000.

[0042] According to some embodiments of this utility model, such as Figure 2As shown, the electrical connector 30 includes a connection terminal 31 and a connector 32. The connection terminal 31 extends along a first direction, and a connection pin 311 protrudes from one end in the first direction. The connector 32 is connected to the other end of the connection terminal 31. Here, the connection terminal 31 is electrically connected to the connection lead 21 and the connector 32, respectively, while the connector 32 can be electrically connected to other structures outside the stator assembly 1 to electrically connect the winding to other structures.

[0043] According to some embodiments of this utility model, such as Figure 4 As shown, the limiting groove 311a extends along the first direction, and the end of the connecting foot 311 away from the connector 32 has an open opening 311d communicating with the limiting groove 311a. The connecting foot 311 is adapted to be received in the mounting groove 10a along the first direction. Here, when the connecting foot 311 is received in the mounting groove 10a along the first direction, the connecting lead 21 can also be received in the limiting groove 311a along the first direction through the open opening 311d, and move relative to the limiting groove 311a in the first direction. This allows the piercing part 301 to pierce the insulating layer on the surface of the connecting lead 21 during the insertion and engagement of the connecting foot 311 and the mounting groove 10a, thereby realizing the electrical connection between the connecting lead 21 and the electrical connector 30. This can accelerate the electrical connection speed between the connecting lead 21 and the electrical connector 30, thereby improving the manufacturing efficiency of the motor 1000.

[0044] According to some embodiments of this utility model, such as Figure 4 As shown, the two side walls of the limiting groove 311a in the second direction are adapted to contact the connecting lead 21, and the second direction intersects the first direction. The limiting groove 311a includes a receiving channel 311b and a guiding channel 311c connected sequentially in the first direction. One end of the guiding channel 311c communicates with the receiving channel 311b, and the other end forms an open opening 311d. The width of the guiding channel 311c in the second direction is greater than the width of the receiving channel 311b in the second direction. The piercing part 301 can be located in the receiving channel 311b, the guiding channel 311c, or between the receiving channel 311b and the guiding channel 311c. The width of the guiding channel 311c in the second direction is greater than the width of the receiving channel 311b in the second direction so that the guiding channel 311c can guide the connecting lead 21 to move toward the receiving channel 311b located inside, so that the limiting groove 311a can restrict the position of the connecting lead 21.

[0045] According to some embodiments of this utility model, such as Figure 4As shown, the sidewall of the receiving channel 311b in the second direction and the sidewall of the guide channel 311c in the second direction are connected by a connecting surface 310. The connecting surface 310 extends in the second direction, and the part of the connecting surface 310 that connects with the sidewall of the receiving channel 311b in the second direction is a piercing part 301. When the connecting foot 311 is received in the mounting groove 10a in the first direction, the connecting lead 21 also moves relative to the limiting groove 311a in the first direction, and the part of the connecting surface 310 that connects with the sidewall of the receiving channel 311b in the second direction can cut a part of the insulating layer on the surface of the connecting lead 21, so that the connecting lead 21 can be electrically connected to the connecting foot 311.

[0046] According to some embodiments of this utility model, such as Figure 4 As shown, in the direction toward the opening 311d, the width of the guide channel 311c gradually increases in the second direction to form a flared opening 311d, which facilitates the guidance of the connecting lead 21 toward the receiving channel 311b, so that the connecting lead 21 can smoothly enter the receiving channel 311b and contact the piercing part 301, thereby improving the connection efficiency between the electrical connector 30 and the connecting lead 21.

[0047] According to some embodiments of this utility model, such as Figure 4 As shown, the sidewall of the guide channel 311c in the second direction is constructed as an arc surface to guide the connecting lead 21, so that the connecting lead 21 can move along either sidewall of the guide channel 311c in the second direction toward the receiving channel 311b.

[0048] According to some embodiments of this utility model, such as Figure 3 As shown, the connection terminal 31 is constructed in multiple ways, with at least two connection terminals 31 having different structures, so that the connection terminal 31 can cooperate with the corresponding mounting slot 10a, avoid the structure of adjacent connection terminals 31, facilitate installation and operation, and also realize the foolproof design.

[0049] In some embodiments, the stator assembly 1 is used in a three-phase motor 1000, where the connecting lead 21 is constructed as three strands and the connecting terminal 31 is also constructed as three corresponding to the three connecting leads 21.

[0050] In some embodiments, the connecting pins 311 of the plurality of connecting terminals 31 are spaced apart in a second direction.

[0051] The motor 1000 according to this utility model is briefly described below.

[0052] The motor 1000 according to the present invention includes the stator assembly 1 described in any of the above embodiments. Since the motor 1000 according to the present invention is provided with the stator assembly 1 of the above embodiments, the motor 1000 has higher manufacturing efficiency.

[0053] In summary, the stator assembly 1 designed according to this utility model uses a limiting groove 311a in the electrical connector 30 to limit the connection lead 21 and prevent it from moving. A piercing part 301 is also designed in the limiting groove 311a, allowing the electrical connector 30 to pierce the terminal during installation onto the mounting frame 10, thus electrically connecting the connection lead 21 to the electrical connector 30. This terminal-piercing method accelerates the electrical connection between the connection lead 21 and the electrical connector 30, thereby improving the manufacturing efficiency of the motor 1000. Furthermore, the assembly method of the connection lead 21 and the electrical connector 30 is simple, requiring low precision during installation. No other connecting devices are needed to achieve the connection and coordination between the connection lead 21 and the electrical connector 30, reducing assembly time and cost, and further improving the manufacturing efficiency of the motor 1000.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0055] Although embodiments of the present invention have been shown and described above, variations, modifications, substitutions and alterations can be made to the above embodiments.

Claims

1. A stator assembly (1) characterized in that, include: Mounting frame (10); The winding is disposed on the mounting frame (10) and has a connecting lead (21) at its end, and the surface of the connecting lead (21) is provided with an insulating layer; An electrical connector (30) is disposed on the mounting frame (10) and forms a limiting groove (311a). The limiting groove (311a) is adapted to receive a portion of the connecting lead (21). The limiting groove (311a) has a piercing portion (301) adapted to contact the insulating layer to pierce the insulating layer, so that the electrical connector (30) is electrically connected to the connecting lead (21).

2. The stator assembly (1) according to claim 1, characterized in that, The electrical connector (30) is provided with a protruding connecting foot (311), the connecting foot (311) is formed with the limiting groove (311a), the mounting frame (10) is formed with a mounting groove (10a) suitable for receiving the connecting foot (311), and at least a portion of the connecting lead (21) extends to the mounting groove (10a).

3. The stator assembly (1) according to claim 2, characterized in that, The electrical connector (30) includes: A connecting terminal (31) extends along a first direction, and a connecting pin (311) protrudes from one end in the first direction; A connector (32) is connected to the other end of the connecting terminal (31).

4. The stator assembly (1) according to claim 3, characterized in that, The limiting groove (311a) extends along a first direction, and the end of the connecting foot (311) away from the connector (32) forms an open opening (311d) communicating with the limiting groove (311a). The connecting foot (311) is adapted to be received in the mounting groove (10a) along the first direction.

5. The stator assembly (1) according to claim 4, characterized in that, The two side walls of the limiting groove (311a) in the second direction are adapted to contact the connecting lead (21), and the second direction intersects the first direction; The limiting groove (311a) includes a receiving channel (311b) and a guiding channel (311c) connected sequentially in a first direction. One end of the guiding channel (311c) is connected to the receiving channel (311b), and the other end forms the opening (311d). The width of the guide channel (311c) in the second direction is greater than the width of the receiving channel (311b) in the second direction.

6. The stator assembly (1) according to claim 5, characterized in that, The sidewall of the receiving channel (311b) in the second direction is connected to the sidewall of the guide channel (311c) in the second direction via a connecting surface (310). The connecting surface (310) extends in the second direction, and the portion of the surface of the connecting surface (310) that connects to the sidewall of the receiving channel (311b) in the second direction is the puncture portion (301).

7. The stator assembly (1) according to claim 5, characterized in that, In the direction toward the opening (311d), the width of the guide channel (311c) gradually increases in the second direction.

8. The stator assembly (1) according to claim 5, characterized in that, The guide channel (311c) has an arc-shaped sidewall in the second direction.

9. The stator assembly (1) according to claim 3, characterized in that, The connection terminal (31) is constructed in multiple ways, and at least two of the connection terminals (31) are constructed differently.

10. An electric motor (1000), characterized in that, Includes the stator assembly (1) according to any one of claims 1-9.

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